CN115753745A - A test paper drum for a body fluid detection device and a body fluid detection device - Google Patents

Abstract

A test paper drum magazine for a body fluid detection device, comprising: the bottom of the shell is provided with a first shaft hole, and the side wall of the shell is provided with a window; the partition board divides the shell into an upper first space and a lower second space, and a second shaft hole is formed in the partition board; the first inner container is arranged in the first space and is provided with a plurality of storage cabins which are uniformly arranged in the circumferential direction; a second inner container which is arranged in the second space and is provided with a detection cabin with an opening facing to the radial outer side; the connecting shaft is fixedly connected with at least the first inner container; the test paper is distributed in the storage cabins; the detection cabin is used for carrying out body fluid detection or physical characteristic calibration on the single test paper; a test paper channel is arranged on the partition board, and when a certain storage cabin of the first inner container rotates to a position corresponding to the test paper channel, the test paper positioned in the storage cabin passes through the test paper channel and falls into a detection cabin below the test paper channel; the window is arranged at a position corresponding to the opening of the detection cabin and used for introducing body fluid into the single test paper falling into the detection cabin.

Description

A test paper drum for a body fluid detection device and a body fluid detection device

technical field

The invention relates to a test paper drum for a body fluid detection device which can perform multiple detections and is convenient to take and place, and a body fluid detection device using the test paper drum.

Background technique

Body fluid testing is an important item in medical clinical testing. For example, the examination of urine as a kind of body fluid is one of the three routine items of modern medical clinical examination, and plays a very important role in the diagnosis of diseases. The urine analyzer is a urine testing instrument used in conjunction with the test paper. The color of the test paper changes according to the specific chemical components contained in the urine. The urine analyzer recognizes the color characteristics of the test paper and obtains the test result after analysis.

At present, urine analyzers are mainly divided into semi-automatic and fully automatic. The semi-automatic analyzer requires the operator to stand by the instrument, continuously soak the sample and place a single strip of test paper to achieve continuous testing. The disadvantages of unsanitary.

Fully automatic urine analyzers usually use complex electromechanical design to realize automatic transmission and sample addition of test paper, which often have problems such as complex structure, large volume, and high failure rate.

Chinese patent CN101887065A discloses a "full-automatic urine analyzer", which includes a test paper box containing multiple layers of test paper that has not been soaked in urine. The test paper box is located above the test paper conveyor belt, and the bottom of the test paper box is opened to help The push groove and the boost groove communicate with the inner cavity of the test strip box. When working, the test paper box is lowered by a certain distance first, and the booster teeth on the conveyor belt pass through the booster groove under the drive of the conveyor belt, and the test paper stored in the test paper box at the bottom is pushed out from the exit and falls to the on the conveyor belt.

The structure of this analyzer is too complicated, it is inconvenient to install, debug and use, and it is prone to failure. Simultaneously, because it exists the problem that can not directly adopt original urine container (such as urine cup) to go on machine, therefore also need to pour the sample that collects into test tube from urine cup, put test tube into test tube rack again and test, this also Increased instrument complexity and cost.

Chinese patent CN202330441U discloses a "full-automatic urine analyzer", which uses a test paper tape drum to carry test paper in roll form. When working, the test strip coming out of the test strip tube enters the detection area. At this time, the sample loading mechanism automatically extracts urine from the urine cup and loads the urine on the test strip. The test strip that has reacted with the urine and has been tested is rolled up. into the recycler. This design enables it to have the functions of automatic transmission of test paper, automatic loading of urine and automatic recovery of test paper, which greatly simplifies the equipment; at the same time, there is also a sealing layer on the test paper, which can be automatically removed by motor scrolling, It not only solves the problem that the test paper is easy to be polluted, but also realizes the fully automatic operation.

However, such a design will cause urine to remain near the detection area after use, thereby polluting the surrounding environment, especially the test strip cartridge and the recycler. When disassembled, the test strip cartridge and the recycler are mixed with tested test paper and urine. It is extremely inconvenient to take and place, and it is easy to cause personnel to be contaminated by urine.

comparative literature

Patent Document 1: CN101887065A

Patent Document 2: CN202330441U

Contents of the invention

The object of the present invention is to provide a test paper drum for a body fluid detection device that can perform multiple detections and is convenient to take and place, and a body fluid detection device using the test paper drum. In order to achieve the above object, one aspect of the present invention is a test paper drum for a body fluid detection device, which is characterized in that it includes: a substantially cylindrical bottomed casing, and a first bottom is provided on the bottom of the casing. a shaft hole, a window is opened on the side wall of the housing; a partition is arranged in the inner chamber of the housing and divides the inner chamber into a first space in the height direction of the housing and a second space located below the first space, a second shaft hole is provided on the partition, and the axis of the second shaft hole coincides with the axis of the first shaft hole; the first liner, It is arranged in the first space and has a plurality of storage compartments uniformly arranged in the circumferential direction; the second liner is arranged in the second space and is provided with a detection compartment with an opening facing radially outward; connected A shaft, coaxially arranged with the first shaft hole and the second shaft hole and fixedly connected with at least the first inner tank, and the connecting shaft can at least be integrally wound around the first inner tank The axis of the first shaft hole rotates; a plurality of test papers are distributed among the plurality of storage compartments, and have at least one reactant corresponding to the index to be measured of the body fluid, and the reactant behaves when reacting with the body fluid The physical characteristics that can evaluate the index to be tested; the detection chamber is used for body fluid detection or calibration of physical characteristics based on a single test paper in the plurality of test papers; The test paper passage through which a single test paper in the first liner passes. When a certain storage compartment in the plurality of storage compartments of the first inner container is rotated to a position corresponding to the test paper passage, the test paper in the plurality of test paper The test paper in the storage compartment falls through the test paper channel and falls into the detection compartment below; the window is arranged at a position corresponding to the opening of the detection compartment in the height direction of the housing, and The body fluid is introduced into a single test paper among the plurality of test papers dropped into the detection chamber.

According to the aforementioned technical scheme, a plurality of test papers can be stored in the storage compartment of the first inner container, and a plurality of test papers fall into the detection compartment of the second inner container below through the test paper channel in turn, so that multiple test papers can be used for multiple detection. One test, and the test paper drum is an independent unit, which can be easily installed and replaced.

In a preferred manner, the first liner and the second liner are arranged coaxially, and the connection shafts are fixedly connected to the first liner and the second liner respectively, so that When the first inner tank rotates, the second inner tank rotates synchronously with the first inner tank; there are multiple detection chambers in the second inner tank, and they are connected with all the detection chambers of the first inner tank. The number of the plurality of storage compartments is the same, and when the first inner tank and the second inner tank are respectively installed in the first space and the second space, the plurality of detection cabins and the plurality of storage compartments The upper and lower compartments are arranged in a one-to-one correspondence.

According to the aforementioned technical solution, the first inner container and the second inner container rotate synchronously, and the storage cabin and the detection cabin are arranged in a one-to-one correspondence, so that a plurality of test papers can be rotated with the first inner container and the second inner container. They pass through the test paper channel in turn and fall into the detection cabin facing the detection window below. On the one hand, it improves the convenience of taking multiple test papers back and forth and taking turns to detect them; on the other hand, before the test papers fall into the detection chamber below, they are always located in the storage compartment of the first inner tank above the partition, which can effectively avoid Contamination of bodily fluids entering through the detection window.

In a preferred manner, there is one detection cabin of the second inner tank, and when the second inner tank is installed in the second space, the opening of the detection cabin faces all the parts of the housing. The window is set; there is a first limiting mechanism between the second inner tank and the housing, which is used to limit the rotation of the second inner tank relative to the housing.

According to the aforementioned technical solution, only one detection chamber is provided in the second inner tank, and it does not follow the rotation of the first inner tank, which simplifies the structure and saves the cost.

In a preferred manner, a second limiting mechanism is provided between the first inner tank and the housing for limiting the rotation of the first inner tank relative to the housing.

In a preferred manner, it is equipped with: a drum cover, which is detachably connected to an end of the shell away from the bottom; As a rigid connecting piece of the second limiting mechanism, it is used to limit the rotation of the drum cover relative to the first inner container and the housing, when the drum cover is connected to the first inner container When the torsion moment between the drum cover and the housing both reaches the breaking moment of the rigid connection, all the rigid connections are destroyed.

According to the aforementioned technical solution, when the test paper cartridge is not loaded into the body fluid detection device, the first inner tank cannot rotate relative to the casing under the action of the second restriction mechanism, thus ensuring that the storage compartment and the detection compartment below are not incompatible. It can be rotated at will to cause mutual misalignment, and through adjustment, a detection cabin can be stably aligned with the detection window, which is convenient for transportation and use. After the test paper drum is loaded into the body fluid detection device, the second limiting mechanism is destroyed under the action of external force, so that the first inner container can rotate relative to the casing, so that the normal use of the body fluid detection device will not be affected.

In a preferred manner, a flexible connector is provided between the drum cover and the first inner container, and when the drum cover rotates relative to the first inner container, the flexible connector It can be twisted along with the drum cover without being damaged.

According to the aforementioned technical solution, when the drum cover is removed, the drum cover directly pulls up the first inner container through the flexible connecting piece, which facilitates the disassembly of the test paper drum and avoids the problem of being easily contaminated with body fluids caused by personnel disassembling parts one by one.

In a preferred manner, the physical characteristic is a color characteristic, and at least one of the plurality of test papers is used for white balance calibration.

According to the aforementioned technical solution, the white balance calibration of the color sensor can effectively improve the efficiency and accuracy of the color sensor in detecting the color characteristics of the test paper.

In a preferred manner, each of the plurality of test papers includes a plurality of reaction areas, and each of the plurality of reaction areas contains a reactant corresponding to a certain index to be measured in the body fluid.

According to the aforementioned technical scheme, a single test paper can simultaneously detect multiple indexes of the body fluid, thereby improving the detection efficiency.

In a preferred manner, each of the plurality of reaction zones has a color feature corresponding to a certain index to be measured of the body fluid before being in contact with the body fluid, and the color feature is used to distinguish the multiple reaction zones. The category of the paper to be tested in the test paper.

According to the foregoing technical solution, multiple types of test papers for detecting different indicators can be provided, and different types of test papers present different initial color characteristics, and then, according to the initial color characteristics, it can be judged that this type of test paper is used to detect the What kind of index, thus calling the corresponding discrimination program in the control component, expanding the detection range.

In a preferred manner, the partition is integrally formed with the housing.

According to the aforementioned technical solution, the integral formation of the partition plate and the shell has a simple structure, is convenient for processing, and facilitates the assembly of the first inner tank and the second inner tank.

In a preferred manner, a bushing adapted to the storage compartment and the detection compartment is included, and is used for clamping, positioning and counterweighting a single test paper among the plurality of test papers.

According to the foregoing technical solution, the bushing can add weight to the test paper to ensure that the test paper must be able to fall and ensure that the posture of the test paper does not deflect.

In a preferred manner, one test paper is provided in each storage compartment among the plurality of storage compartments.

According to the aforementioned technical solution, only one test paper is set in each storage compartment, which can save test paper materials, and also avoid crowding and interference between multiple test papers when there are multiple test papers in one storage compartment.

In addition, another aspect of the present invention is a body fluid detection device, characterized in that:

It includes a drive assembly, an angle detection assembly, a sensor assembly, and a control assembly, the drive assembly is connected to the connecting shaft, drives the first inner container to rotate or simultaneously drives the first inner container and the second inner container to rotate The angle detection component detects the rotation angle of the first liner, and converts the rotation angle into an electrical signal and transmits it to the control component; the sensor component collects the multiple The physical characteristics of a single test paper in the test paper after the interaction with the body fluid, and the physical characteristics are converted into electrical signals and transmitted to the control component; the control component is electrically connected to the drive component, and according to preset conditions and the The electrical signal corresponding to the rotation angle transmitted by the angle detection component controls the rotation of the drive component and analyzes the electrical signal transmitted by the sensor component; the body fluid detection device also has the above-mentioned test paper drum.

According to the aforementioned technical solution, it is possible to provide a body fluid detection device that performs multiple detections and is convenient to take and place the test paper drum.

Description of drawings

In order to illustrate the present invention more clearly, the accompanying drawings of the present invention will be described and illustrated below. Apparently, the accompanying drawings in the following description only illustrate certain aspects of some exemplary embodiments of the present invention, and those skilled in the art can obtain Additional drawings.

FIG. 1 is an external view of an exemplary test strip drum for a body fluid detection device.

Fig. 2 is a top view of the casing of the exemplary test paper drum.

Fig. 3 is a structural schematic diagram of an exemplary first liner.

Fig. 4 is a schematic structural diagram of an exemplary second inner container.

Fig. 5 is an upper oblique view of an exemplary second inner container.

Fig. 6 is a bottom oblique view of an exemplary second inner container.

Fig. 7 is a schematic diagram of an exemplary inner tank with only one detection chamber.

FIG. 8 is a schematic diagram of an exemplary pawl mechanism.

Fig. 9 is an upper oblique view of the exemplary test paper drum.

Fig. 10 is an overall schematic diagram of an exemplary body fluid detection device.

Fig. 11 is a schematic diagram of an exemplary test strip liner.

Description of attached text:

100-Test paper drum

1- the first liner

11 - first peripheral wall

12 - storage compartment

13-Inner liner connecting shaft

131 - first extension

14-Inner gallbladder groove

15-Inner tank magnetic groove

16-Bushing

161-Bushing body

162- Bushing clamping part

163-clamping space

2-Second liner

21-Second peripheral wall

22-Test cabin

221-The main body of the detection cabin

222- Detection chamber stopper

23-Inner liner connecting hole

231-First limit part

24-motor connection hole

4- partition

41-Main body

42-Separator hole

43-Test paper channel

5- drum cover

52-Pin

53-flexible connector

8- pawl mechanism

81-Pawl

82-drawing department

83-Pawl magnetic groove

9-shell

91 - detection window

92-shell wall block

93-shell wall claw groove

2’-Second liner

200-Body fluid detection device

201 - control components

202 - drive components

203-sensor assembly

204 - Bodily fluid collection area

205-Body Fluid Line

206-liquid pump

207-Angle detection component

Detailed ways

Various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that unless otherwise stated, the relative arrangements of components and steps, numerical expressions and numerical values, etc., set forth in these embodiments should be construed as merely exemplary rather than restrictive.

Words such as "comprising" or "comprising" used in the present disclosure mean that the elements preceding the word cover the elements listed after the word, and the possibility of also covering other elements is not excluded.

All terms (including technical terms or scientific terms) used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general-purpose dictionaries should be understood to have meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in idealized or extremely formalized meanings, unless explicitly stated herein defined in this way.

Parameters such as components, specific models of components, interrelationships between components, and control circuits that are not described in detail in this section can be considered as technologies, methods and equipment known to those of ordinary skill in the relevant art, but in appropriate cases , the techniques, methods and devices should be considered as part of the specification.

(overall assembly relationship)

First, the overall structure of the body fluid detection device will be described with reference to FIG. 10 . Fig. 10 is an overall schematic diagram of the body fluid detection device.

As shown in Figure 10, the test paper drum 100 is installed in the body fluid detection device 200. As an example, the body fluid detection device 200 includes a control component 201, a drive component 202, a sensor component 203, a body fluid collection area 204, a body fluid pipeline 205, a liquid pump 206. An angle detection component 207. When in use, the control unit 201 drives the liquid pump 206 to extract the body fluid from the body fluid collection area 204 and transport it into the test paper drum 100 through the body fluid pipeline 205 to react with the test paper. The sensor component 203 is used to collect the color characteristics of the test paper after reaction, and transmit the signal corresponding to the color characteristics to the control component 201, and the control component 201 analyzes the color characteristics of the test paper, and judges whether the target to be tested in the body fluid exceeds the standard. Wherein, the control component 201 will control the driving component 202 to drive the test paper drum 100 to perform corresponding actions according to the rotation angle detected by the angle detection component 207, which will be described later.

Next, the overall assembly relationship of the test paper drum 100 of the present invention will be described with reference to FIG. 1 and FIG. 2 . Fig. 1 is an external view of a test paper cartridge for a body fluid detection device. Fig. 2 is a top view of the shell of the test paper drum.

As shown in FIG. 1 , the test paper drum 100 includes a substantially cylindrical shell 9 , and a detection window 91 for test paper detection is opened on the side wall of the shell 9 . One end of the housing 9 is open, and is detachably connected with the drum cover 5, and the other end is provided with a bottom (not shown in the figure), and the bottom is provided with a bottom shaft hole allowing the drive assembly 202 such as the drive shaft of the motor to pass through. The bottom of the housing 9 can be integrally formed with the housing 9 , or can be detachably connected, such as clamping, threaded and so on.

The detection window 91 runs through the shell wall of the shell 9, and can be a window roughly corresponding to the shape and size of the test paper, or it can be a plurality of window units arranged at intervals up and down along the axial direction of the shell 9 as shown in FIG. 1 , so The combination of the plurality of window units roughly corresponds to the shape and size of the test paper, and each window unit corresponds to a reaction area of the test paper described later. During detection, the test paper is located in the inner chamber of the housing 9 facing the detection window 91, and the external body fluid enters the inner chamber of the housing 9 through the detection window 91 and contacts and reacts with the test paper, and then is arranged outside the housing 9. The sensor component 203 such as a color sensor collects the color features on the test paper through the detection window 91 . Preferably, an illuminating device such as an LED light is provided near the position of the detection window 91 to provide illumination for the test paper to improve the detection efficiency and detection accuracy of the color characteristics of the test paper after reaction.

For ease of description, along the axial direction of the housing 9, the direction of the housing 9 towards the drum cover 5 is set as the upper side, and the direction of the housing 9 towards the bottom is set as the lower side, and the above and below described below are the same, so The above-mentioned up-down direction is the axial direction of the casing 9 .

The housing 9 has an inner chamber for installing the first inner tank 1 and the second inner tank 2 . The first inner tank 1 is installed above the second inner tank 2 and detachably connected with the drum cover 5 , and the second inner tank 2 is close to the bottom of the housing 9 .

Specifically, as shown in FIG. 2 , the inner chamber of the housing 9 is also provided with a partition 4. As a method, the partition 4 is located at a substantially central position in the height direction of the housing 9, including the main body 41, A partition hole 42 as a second shaft hole is provided at the center of the radial section of the main body 41 , and a test paper passage 43 close to the shell wall of the housing 9 for the test paper to pass through. The partition 4 divides the inner chamber of the housing 9 into a first space above and a second space below. Wherein, the first inner tank 1 is installed in the first space, and the second inner tank 2 is installed in the second space, that is, a partition 4 is arranged between the first inner tank 1 and the second inner tank 2 . It can be understood that the position of the partition plate 4 relative to the housing 9 can be set relatively higher or lower than the approximate center in the height direction, as long as the upper and lower spaces for accommodating the first inner tank 1 and the second inner tank 2 can be formed. That is, the specific setting depends on actual needs.

The partition plate 4 is generally located on the upper side of the detection window 91 or is flush with the upper edge of the detection window 91 . The partition plate 4 and the inner wall of the housing 9 can be integrally formed or detachably connected. Different connection methods involve two different assembly relationships, which will be described separately below.

As a preferred manner, when the partition plate 4 is integrally formed with the inner wall of the housing 9 , the bottom of the housing 9 must be detachably connected with the housing 9 instead of integrally formed. During installation, the first liner 1 is loaded into the inner chamber of the housing 9 from the upper opening of the housing 9, and the second inner tank 2 is loaded from the lower opening of the housing 9, and then the drum cover 5 is connected to the housing 9, the bottom of the housing 9 is connected to the lower opening of the housing 9. At this time, the test paper passage 43 of the separator 4 is set toward the detection window 91 and is located above the detection window 91 , so that the test paper can face the detection window 91 after falling from the test paper passage 43 .

As another way, when the partition plate 4 is detachably connected to the inner wall of the housing 9, the housing 9 and its bottom can be detachably connected or integrally formed.

On the one hand, if the housing 9 is integrally formed with its bottom, the second liner 2 needs to be installed under the inner chamber of the housing 9 first, and then the partition 4 is installed in the inner chamber of the housing 9 during installation. The top of the second liner 2. At this time, the inner wall of the housing 9 needs to be provided with a mechanism connected to the partition plate 4. For example, the inner wall of the housing 9 can be provided with a plurality of protrusions extending toward the center of the radial section, and each protrusion extends toward the center of the radial section. The dimensions are set such that the second inner container 2 is allowed to pass through but the partition 4 is not allowed to pass through. For example, the projection of the second liner 2 on the radial section of the housing 9 falls within the projections of the plurality of protrusions on the section, while the projection of the partition 4 on the section falls within the projection of the plurality of protrusions. outside the projection on that section.

On the other hand, if the housing 9 is detachably connected to its bottom, the second inner bag 2 can be loaded into the inner chamber of the housing 9 from the lower opening of the housing 9, and the dividing plate 4 can be removed from the opening of the housing 9. Fits into the top opening. At this time, the inner wall of the housing 9 still needs to be provided with a position-limiting mechanism connected to the partition plate 4. For example, the inner wall of the housing 9 can be provided with a plurality of protrusions extending toward the center of the radial section, but the plurality of protrusions extend toward the housing 9. There is no need to limit the size relationship between the dimension extending in the center of the radial cross-section and the outer circumference dimension of the second inner container 2 .

It should be noted that when the partition 4 is detachably connected to the inner wall of the housing 9, in order to limit the rotation of the partition 4 relative to the housing 9 around the axis of the housing 9, the inner wall of the housing 9 and the partition The mechanism connecting the boards 4 is also provided with a limiting part. For example, the protrusion on the inner wall of the housing 9 also has a snap-in block extending upwards, and the partition plate 4 is provided with a snap-in hole adapted to the snap-in block. When the partition plate 4 is loaded from above, the partition plate The clamping hole of the board 4 is clamped with the raised clamping block. At this time, the protrusion supports the partition plate 4 so that it can only be taken out upwards and cannot be moved downwards. In the axial direction around the casing 9, the partition plate 4 is also moved by the clamping block relative to the casing 9. Unable to rotate due to restrictions.

For the sake of simplicity, the following only describes the case where the partition plate 4 is integrally formed with the housing 9 and the housing 9 is detachably connected to its bottom.

In general, the test paper drum 100 forms a structure for accommodating the first inner tank 1 and the second inner tank 2 through the drum cover 5, the shell 9 and its bottom, wherein the first inner tank 1 is located at the bottom of the second inner tank 2 Above, and between the first inner container 1 and the second inner container 2, a partition 4 with a partition hole 42 and a test paper channel 43 is provided. Wherein, the material of drum cover 5, housing 9 and its bottom, first inner tank 1, second inner tank 2 and partition plate 4 is generally a material with certain hardness and body fluid corrosion resistance, and the color of the surface is preferably black, Because the sensor assembly 203 outside the casing 9 such as the color sensor is usually more sensitive to light, the outside of the casing 9 should form a closed dark room, and the black color can absorb excess stray light in the environment, which is conducive to improving the detection accuracy and white balance of the test paper. Calibration accuracy.

By arranging the first inner container 1, the separator 4, and the second inner container 2 sequentially from top to bottom, the test paper can fall from the first inner container 1 only by its own gravity, and fall into the second inner container through the test paper passage 43. The second liner 2 reduces the trouble of providing additional test paper for power transmission, and can simplify the design scheme and structure. At the same time, the test strip drum 100 is a compact independent unit, which is easier to transport and install, and can be more conveniently disassembled and replaced after the test strips are used up.

(Embodiment 1)

Next, the structure of the first liner 1 and the second liner 2 and the connection between them will be described in detail with reference to FIGS. 3 to 6 . Fig. 3 is a schematic structural view of the first inner container, Fig. 4 is a schematic structural view of the second inner container, Fig. 5 is an upper oblique view of the second inner container, and Fig. 6 is a lower oblique view of the second inner container.

The structure of the first liner 1 will be specifically described below.

As an embodiment, as shown in FIG. 3 , the main body of the first inner container 1 is a cylindrical structure, equipped with a first outer peripheral wall 11, a plurality of storage compartments 12 for storing test papers distributed at intervals in the circumferential direction, and A liner connection shaft 13 extending downward from the center of the radial section of the first liner 1 near the lower end of the partition 4 . Wherein, the liner connecting shaft 13 and the first liner 1 can be integrally formed or detachably connected, and are mainly used for the connection and positioning of the first liner 1 and the second liner 2. For the sake of simplicity, only the inner liner The integral molding of the bladder connecting shaft 13 and the first inner tank 1 will be described as an example.

As an example, the storage compartment 12 penetrates the upper and lower ends of the first inner container 1 in the axial direction, and its radial cross-sectional shape can be a rectangle, a cylinder, a polygon, and a substantially semicircular shape as shown in FIG. 3 , as long as it can Just enough to hold the test paper. Preferably, a plurality of storage compartments 12 are evenly distributed in the circumferential direction of the first inner container 1, that is, any two adjacent storage compartments 12 are arranged at equal intervals, so that the first inner container 1 can be rotated by a fixed angle , to realize the test paper stored in two adjacent storage compartments 12 to take over from front to back, thereby reducing the difficulty of control and increasing the convenience of test paper transportation. The number of storage compartments 12 is only six schematically shown in FIG. 3 , but may actually be determined according to body fluid detection requirements.

In addition, the storage compartment 12 may also be a blind hole structure opening downward, that is, it does not penetrate through both ends of the first inner container 1 . During installation, the first inner container 1 needs to be set upside down and filled with test paper, and then the casing 9 is buckled upside down on the first inner container 1 , and this solution will not be described in detail here.

In Fig. 3, the storage compartment 12 is constituted as a straight cylindrical shape wrapped by the first outer peripheral wall 11 in the circumferential direction and open at both ends. The cabin 12 maintains a relatively good sealing performance, thereby better protecting the stored test papers. In fact, the storage compartment 12 may also be open at both ends and open radially outward at the same time. At this time, the first outer peripheral wall 11 is divided into a multi-stage structure that is discontinuous in the circumferential direction by a plurality of storage compartments 12, but such In this way, the structural strength of the first liner 1 and the protective effect on the test paper are reduced.

The structure of the second liner 2 will be described in detail below.

As one embodiment, as shown in Figure 4, the second inner container 2 is a cylindrical structure, and is provided with a second peripheral wall 21, a detection chamber 22 for carrying out the reaction between the test paper and the body fluid, and an inner container connection hole 23 . Wherein, the detection chamber 22 is a pattern that is open at both ends as shown in FIG. 4 and opens radially outward at the same time. Preferably, the number of detection cabins 22 is the same as that of the storage cabin 12, and a plurality of detection cabins 22 are evenly distributed in the circumferential direction of the second liner 2. After being installed in the inner chamber of the housing 9, the plurality of detection cabins 22 is arranged in a one-to-one correspondence with a plurality of storage compartments 12 up and down. In this way, when the first inner container 1 and the second inner container 2 are aligned up and down and rotated at the same angle at the same time, the test paper in the storage compartment 12 can be smoothly dropped into the detection compartment 22 .

The detection chamber 22 opens radially outward so that the test paper entering the detection chamber 22 can contact and react with the body fluid entering from the detection window 91 , and then be detected by the external sensor component 203 such as a color sensor. At this time, the second outer peripheral wall 21 is divided into a discontinuous multi-stage structure evenly distributed by a plurality of detection chambers 22 .

Preferably, the detection chamber 22 includes a detection chamber main body 221 and a detection chamber stopper 222 . Wherein the radial cross-section of the main body 221 of the detection chamber is roughly in the shape of a semicircle, a rectangle, a polygon, etc., as long as it can accommodate the test paper. The detection chamber stopper 222 is set to converge inwardly from the edge of the radially outer opening of the detection chamber main body 221, that is, the radial section of the detection chamber 22 is inwardly closed. Usually, the detection chamber stopper 222 is along the The axes are symmetrically arranged left and right. At this time, when the test paper enters the detection chamber 22, it stays in the main body 221 of the detection chamber, and the detection chamber stopper 222 restricts the test paper from tilting outward in the radial direction, so that the attitude of the test paper can be better controlled, and the reaction between the test paper and body fluid can be enhanced. The effect is to improve the accuracy of detection by the sensor component 203 after the reaction.

The connection structure between the first inner container 1 and the second inner container 2 will be specifically described below.

The liner connecting hole 23 is located at the center of the radial cross-section of the upper end of the second liner 2 close to the partition 4 , and is used for mating connection with the liner connecting shaft 13 of the first liner 1 . During installation, the liner connecting shaft 13 is inserted into the liner connecting hole 23 through the spacer hole 42 of the spacer 4, so that the first liner 1 and the second liner 2 are arranged coaxially.

As an embodiment, the lower end of the liner connecting shaft 13 is further provided with a first extension portion 131, and the liner connection hole 23 is provided with a first limiting portion 231 shown in FIG. , used to limit the rotation of the inner tank connecting shaft 13 relative to the inner tank connecting hole 23 .

As an example, the first extension part 131 is configured in a cross-section in the radial section as shown in FIG. Blocks, gaps allowing insertion of the first extending portion 131 are formed between the plurality of limiting blocks. When the inner tank connecting shaft 13 is inserted into the inner tank connecting hole 23, the first extension part 131 is inserted into the gap between the plurality of limiting blocks of the first limiting part 231, and tightly abuts against the plurality of limiting blocks. , to avoid shaking between each other after installation. At this time, the first inner container 1 can only rotate synchronously with the second inner container 2 in the axial direction around the casing 9 under the restriction of the first extension portion 131 and the first limiting portion 231 . Fig. 5 only schematically shows four symmetrically arranged limiting blocks, in fact, the number, shape and position of the limiting blocks can be adjusted as required.

It can be understood that the first extension portion 131 is not limited to the above-mentioned cross-shaped structure, and its radial cross-section can also be in different shapes such as rectangle, triangle, polygon, etc., and the first limiting portion 231 is not limited to the structure of the limiting block, It can also be different styles such as grooves adapted to the shape and size of the first extension part 131, as long as it can be matched with the first extension part 131 and limit the relative rotation of the first inner bag 1 and the second inner bag 2. Can. Or, the connecting shaft 13 of the inner container can be interference-fitted with the connecting hole 23 of the inner container, or a connecting shaft extending upward can also be set at the upper end of the second inner container 2, and the lower end of the first inner container 1 can be set with The connecting hole that the connecting shaft is adapted to, and a mechanism for limiting the relative rotation between the first inner bag 1 and the second inner bag 2 is arranged between the connecting shaft and the connecting hole, so that the first inner bag 1 and the second inner bag can also be realized. The effect of synchronous rotation of the two inner tanks 2.

The connection structure between the second inner tank 2 and the drive assembly 202 will be specifically described below.

As shown in Figure 6, the lower end of the second liner 2 close to the bottom of the housing 9 is provided with a motor connection hole 24 connected to the drive assembly 202, the motor connection hole 24 is located at the center of the radial section of the second liner 2, and is installed It is arranged coaxially with the bottom shaft hole of the housing 9. Preferably, the motor connection hole 24 is set to a shape suitable for the radial cross-section of the drive shaft of the drive assembly 202, such as the shape of a rectangle in the middle and arcs at both ends shown in FIG. The drive shaft is inserted into the motor connection hole 24 and drives the second inner container 2 to rotate. The motor connection hole 24 can be provided in various styles, and is not limited to the above-mentioned shapes.

In fact, the inner tank connecting hole 23 and the motor connecting hole 24 of the second inner tank 2 may both be of blind hole structure, or may be a through hole structure communicating with each other and penetrating the upper and lower ends of the second inner tank 2 .

Between the inner wall of the housing 9 and the outer peripheral wall of the first inner container 1 and the outer peripheral wall of the second inner container 2, and between the inner container connecting shaft 13 and the inner container connecting hole 23, there may be a certain gap to facilitate the absorption process And the tolerance in the assembly process makes the installation more convenient, but if the gap is set too much, it will cause shaking and reduce the fastness of the connection.

During use, the drive shaft of the drive assembly 202 passes through the shaft hole at the bottom of the housing 9 , inserts into the motor connection hole 24 and drives the second inner tank 2 to rotate around the axis of the housing 9 . The second liner 2 drives the first liner 1 to rotate synchronously through the first limiting part 231 and the first extension part 131, so that the housing 9 is stationary and the first liner 1 and the second liner 2 are synchronized. The style of rotation in the inner chamber of the housing 9 . Of course, the drive shaft of the drive assembly 202 can also be connected to the motor connection hole 24 through a connector and other structures, which will not be repeated here.

The transmission process of the test paper will be described in detail below.

As a method, when the first liner 1 and the second liner 2 are installed in the inner chamber of the housing 9, the storage compartment 12 and the detection compartment 22 are installed in a one-to-one correspondence, and one of the storage compartments 12 And the detection cabin 22 that is positioned below it is arranged in the direction facing the detection window 91. After that, a plurality of test papers are loaded into the storage compartment 12 one by one. At this time, due to the blocking of the partition plate 4, only the test paper in the storage compartment 12 directly above the test paper passage 43 falls into the detection compartment 23 below through the test paper passage 43 under its own gravity. Since the test paper channel 43 is set toward the detection window 91 , the test paper falling into the detection chamber 23 faces the detection window 91 at this time, contacts the body fluid entering from the detection window 91 and is detected by the sensor assembly 203 . The test papers in other storage compartments 12 that have not been aligned with the test paper passage 43 are still located in the storage compartments 12 for use in a new round of detection.

Test strips are usually disposable consumables. After the test strip reacts with the body fluid and completes the detection, the test strip is discarded. When a new round of detection starts, the first inner tank 1 and the second inner tank 2 are driven by the driving assembly 202 to rotate synchronously around the axis of the casing 9 by a certain angle. The rotation angle is preset in the external control assembly 201 and is the same as the included angle on the radial section between two adjacent storage compartments 12 . Thus, when the first inner container 1 and the second inner container 2 are rotated by a corresponding angle, the detected scrap test paper is rotated away from the position of the detection window 91, and the storage compartment 12 adjacent to it and located on the upstream side of the rotation direction The test paper in the test paper rotates to the top of the test paper passage 43, falls through the test paper passage 43 into the detection chamber 22 below, and is located at the position facing the detection window 91, thereby starting a new round of reaction and detection. This cycle is repeated until all the test papers stored in the first inner container 1 are used up.

The test paper stored and transmitted in the above-mentioned manner is always located in the upper storage compartment 12 before each round of detection begins, while the body fluid entering from the detection window 91 only directs towards the lower detection compartment 22, coupled with the blocking effect of the partition plate 4, It effectively reduces the contamination of the unused test paper by the splash or residual body fluid below.

(Example 2)

Next, a modified example in which a part of the above-described embodiment is modified will be described with reference to FIG. 7 . Fig. 7 is a schematic diagram of an inner container with only one detection chamber.

As a modified example, the second liner 2' is only provided with one detection cabin 22, and the structure of the detection cabin 22 is the same as that described in the first embodiment. At this time, the detection cabin 22 is no longer set in one-to-one correspondence with the multiple storage cabins 12 above, and the number of the detection cabin 22 is only one and is located below the test paper channel 43, facing the position of the detection window 91 and the position of the housing 9. Inner wall connections. At this time, the second inner tank 2' no longer rotates synchronously with the first inner tank 1 to replace a different detection chamber 22 to accept the test paper dropped from above, but no longer rotates relative to the housing 9, and uses a fixed position detection The compartment 22 accepts a plurality of test papers.

The second liner 2' can be a cylinder coaxially arranged with the first liner 1 as shown in Figure 7, or it can be a fan-shaped, fan-shaped or other-shaped pattern in the radial section, as long as it can be set up to face The detection chamber 22 of the detection window 91 is enough.

As an example, the second inner tank 2' is formed in a fan-shaped radial cross-section and stretched up and down along the axial direction. A detection cabin 22 is arranged on the radially outer arc surface of the second inner tank 2', and is connected with the shell. The structure connected to the inner wall of the body 9 is, for example, a sliding block protruding outward, and a groove track extending up and down adapted to the sliding block is provided on the inner wall of the housing 9 . During installation, the second inner tank 2' is loaded from the lower opening of the housing 9, and the slider slides upward along the groove track, so that the second inner tank 2' is loaded into the inner chamber of the housing 9 , and can not rotate relative to the housing 9 , the slider and the groove track jointly constitute the first limiting mechanism between the second inner tank 2 ′ and the housing 9 . Finally, the bottom of the housing 9 is connected to the lower end of the housing 9 and abuts against the second inner tank 2', thereby realizing the positioning of the second inner tank 2' along the up-down direction. At this time, the radially outer arc surface of the second liner 2' and the inner wall of the casing 9 are attached to each other or maintain a certain gap, so that the detection cabin 22 is arranged facing the detection window 91. It can be understood that the connection mode between the second liner 2' and the inner wall of the housing 9 can be clamped, bonded, etc., as long as the second liner 2' can be limited in the direction of the axis around the housing 9 relative to the The rotation of housing 9 gets final product.

At this time, the drive assembly 202 is no longer connected to the second inner tank 2', but is connected to the first inner tank 1 to directly drive the first inner tank 1 to rotate around the axis of the housing 9 without passing through the second inner tank. 2' to drive the synchronous rotation of the first liner 1. For example, the drive shaft of the drive assembly 202 can be directly connected to the liner connection shaft 13 of the first liner 1 through a connector or other structures, and for another example, the drive shaft of the drive assembly 202 can also be set at the lower end of the first liner 1 The suitable shaft hole only needs to be connected with the drive shaft of the drive assembly 202 and transmit torsional moment.

Compared with Embodiment 1, this modified example can simplify the structure of the second inner tank 2', and can also save the connecting mechanism between the first inner tank 1 and the second inner tank 2', thereby reducing production and installation costs. At the same time, from the upper and lower inner tanks to rotate synchronously, only the first inner tank 1 is rotating, which can further save the energy consumption of the drive assembly 202, reduce the vibration and noise caused by the rotation, and increase the reliability of the parts. Long service life, optimize user experience.

But this modified example also faces the following problem, that is, when a test paper falls into the detection chamber 22, when the next test paper falls from the test paper channel 43, it is easy to be held up by the previous test paper already in the detection chamber 22, and the previous test paper appears. When one test paper is stuck in the position and the latter test paper cannot enter the detection chamber 22, it is also easy for the dropped test paper to fall into the rear side of the previous test paper and be blocked by the previous test paper.

Various methods can be adopted to solve this problem. For example, directly below the detection cabin 22, a discharge hole that allows the test paper to pass is provided at a corresponding position on the bottom of the housing 9, and an openable discharge hole cover is provided on the discharge hole. The opening and closing action of the discharge hole cover is controlled by the control component 201. When a new test paper falls into the detection cabin 22, the discharge hole cover is controlled to close. After the test paper reacts with the body fluid and is detected by the sensor component 203, the discharge hole cover is controlled. Open, the test paper is discharged from the discharge hole at the bottom by its own gravity. After the test paper is discharged from the discharge hole, the discharge hole cover is controlled to close, and the driving assembly 202 drives the first inner container 1 to rotate, so that the new test paper is aligned with the partition 43 and falls into the detection chamber 22, and so on and so forth until the first The test strips stored in liner 1 are used up. However, in this way, the control difficulty of the control component 201 will be increased, and the discharge hole cover will be opened and closed frequently, which will increase the probability of failure.

Both Embodiment 1 and Embodiment 2 can achieve the purpose of the invention, but for the sake of simplicity, only Embodiment 1 will be described below as an example.

(Restriction mechanism between the first liner and the shell)

In actual use, after the first liner 1 and the second liner 2 are installed in the inner chamber of the housing 9, they will rotate relative to the housing 9, causing the storage compartment 12 and the detection compartment 22 to be out of alignment with the paper passage 43 up and down. Furthermore, the test paper cannot be dropped, and even if the test paper falls into the detection chamber 22, it cannot be stably aligned with the detection window 91, which will affect the normal use of the test paper drum 100.

For this reason, it is necessary to set a second limiting mechanism between the first inner tank 1 and the housing 9 to limit the rotation of the first inner tank 1 relative to the housing 9, because the first inner tank 1 and the second inner tank 2 It can only rotate synchronously, so the second liner 2 cannot rotate relative to the casing 9 under the action of the second limiting mechanism.

However, when the test paper drum 100 is installed in the body fluid detection device 200, the first inner container 1 and the second inner container 2 will be driven by the driving assembly 202 to rotate relative to the casing 9, so as to carry out the transmission, reaction and detection of the test paper. . Therefore, it is necessary to apply a certain external force to the second restricting mechanism so that the second restricting mechanism is destroyed so as not to hinder the normal use of the test paper drum 100 .

The second restricting mechanism will be specifically described below.

As an embodiment, the second restricting mechanism includes a rigid connection between the drum cover 5 and the first inner container 1 and the housing 9 . As an example, the rigid connector is a pin. As shown in Figure 1, a plurality of pins 52 are arranged on the lower end surface near the first inner container 1 of the drum cover 5, and a plurality of pins 52 are arranged on the upper end surface of the first inner container 1 and the upper end surface of the shell wall of the housing 9. 52 fits the nail holes 20. When the drum cover 5 is mated with the housing 9 , at least one pin is inserted into the nail hole 20 of the first inner tank 1 , and at least one pin is inserted into the nail hole 20 of the shell wall of the housing 9 . The pin 52 has a certain rigidity, and through the cooperation of the pin 52 and the nail hole 20, the first inner container 1 cannot rotate relative to the drum cover 5, and the drum cover 5 cannot rotate relative to the housing 9, and then the first inner container 1 is relatively Because housing 9 also just can't rotate. In fact, the nail hole 20 can also be set on the lower end surface of the drum cover 5, and the pins 52 adapted to the nail hole 20 can be set respectively on the upper end surface of the first liner and the upper end surface of the shell wall of the housing 9, which can also be used. The effect of restricting the rotation of the first liner 1 relative to the casing 9 is achieved.

After the test paper drum 100 is installed in the body fluid detection device 200 , the drive shaft of the drive assembly 202 passes through the bottom shaft hole of the casing 9 and connects with the motor connection hole 24 of the second inner container 2 . At the same time, the casing 9 is engaged with the body fluid detection device 200 through, for example, the casing wall block 92 shown in FIG. 2 , so that the casing 9 cannot rotate relative to the body fluid detection device 200 .

Preferably, the driving assembly 202 adopts a three-phase permanent magnet synchronous motor. The rotor of the motor is a permanent magnet, and the three-phase lines at the input end are short-circuited, which is commonly referred to as star-off. In the state of star-off, the stator winding of the motor forms a closed coil. When the motor is not energized and started, when the drive shaft connected to the rotor is rotated by an external force, the rotating rotor acts as a permanent magnet to bring about a change in the magnetic field, and then the closed coil of the stator cuts the magnetic field lines to generate an induced current. The motor is equivalent to a generator. According to the law of electromagnetic induction, the induced current will generate a force opposite to the rotation direction of the magnetic field under the action of the magnetic field, so the rotor will face greater rotational resistance.

According to this principle, after the test paper cartridge 100 is installed in the body fluid detection device 200, the cartridge cover 5 can be twisted manually. When the torsional moment M1 applied to the drum cover 5 is less than the resistance moment M2 corresponding to the maximum rotational resistance of the motor rotor when no power is applied, the first inner tank 1 and the second inner tank 2 will not turn.

Assuming that the maximum breaking moment M3 that the pin 52 can bear is greater than or equal to the resistance moment M2, then when the torsional moment M1 is less than the breaking moment M3, the pin 52 between the drum cover 5 and the housing 9 will not be destroyed, and the drum will The cover 5 cannot be rotated, and the pin 52 between the drum cover 5 and the first inner container 1 will not be damaged. At this time, the presence of the pin 52 will greatly increase the load on the motor starting, which will affect the use of the body fluid detection device 200 . When the torsional moment M1 is greater than the breaking moment M3, the pin 52 between the drum cover 5 and the shell 9 will be destroyed, but at this time, since the torsional moment M1 is also greater than the resistance moment M2, the first inner tank 1 will drive the motor The rotor rotates together with the drum cover 5, that is, the first inner container 1 is stationary relative to the drum cover 5, and the pin 52 between the two will not be damaged, which still increases the load when the motor starts.

Therefore, the breaking moment M3 needs to be set smaller than the resistance moment M2. At this time, when the drum cover 5 is twisted manually, the artificially applied force gradually increases, so that the twisting moment M1 also gradually increases. When the torsional moment M1 is greater than the breaking moment M3 and less than the resistance moment M2, the pin 52 between the drum cover 5 and the housing 9 will be destroyed, and the first liner 1 cannot rotate due to the restriction of the motor rotor, and the drum cover 5 The pin 52 between the first inner container 1 will also be destroyed, and now the drum cover 5, the first inner container 1 and the housing 9, and between the first inner container 1 and the housing 9 can rotate mutually , so as to avoid adding additional burden to the start of the motor.

As another embodiment, the second limiting mechanism is the ratchet mechanism 8 provided outside the test paper drum 100 , which will be described in detail below with reference to FIGS. 8 and 9 . Fig. 8 is a schematic diagram of the ratchet mechanism, and Fig. 9 is an upper oblique view of the test paper drum.

As shown in Figures 8 and 9, the ratchet mechanism 8 includes a plurality of ratchets 81. In contrast, the upper end surface of the first inner tank 1 is provided with an inner tank claw groove 14 adapted to the ratchets 81, and the housing The upper end surface of the shell wall of 9 is provided with a shell wall claw groove 93 adapted to the ratchet 81 . For the sake of simplicity, the three pawls 81 shown in FIG. 8 are taken as an example for illustration.

After the first liner 1 is installed in the inner chamber of the housing 9, the ratchet mechanism 8 is installed on the upper end surface of the first liner 1, and the plurality of ratchets 81 are respectively connected with the inner liner claw groove 14 and the shell wall claw groove 93. One-to-one mating connection, for example, one pawl 81 is inserted into the claw groove 14 of the inner tank, and the other two ratchets 81 are inserted into the claw groove 93 of the shell wall, so as to limit the rotation of the first inner tank 1 relative to the shell 9 .

Preferably, as shown in FIG. 9 , on the edge of the upper end surface of the first inner container 1 , three inner container pawl grooves 14 are provided corresponding to the three pawls 81 one-to-one and open upward and radially outward at the same time. On the edge of the upper end surface of the shell wall of the housing 9 , three shell wall pawl grooves 93 are provided corresponding to the three pawls 81 one by one, opening upward and radially inward at the same time. Thus, by adjusting the position of the first liner 1 relative to the housing 9, the three inner liner claw grooves 14 and the three shell wall claw grooves 93 can be aligned in the radial direction in a one-to-one correspondence, and jointly constitute three storage tanks. Space for the pawl 81 . At this time, the ratchet 81 is inserted into the space jointly formed by the claw groove 14 of the inner tank and the claw groove 93 of the shell wall, and is matched and connected with the first inner tank 1 and the shell wall of the shell 9 respectively. If the depth of the claw groove 14 of the inner tank and the claw groove 93 of the shell wall are inconsistent in the vertical direction, the pawl 81 can also be set into a step shape as shown in Figure 8, so as to facilitate the matching of the claw groove 14 of the inner tank and the claw groove of the shell wall at the same time 93.

In addition, as a method, a magnetic suction structure is adopted, the inner tank magnetic groove 15 shown in FIG. 9 is provided on the upper end surface of the first inner tank 1, and the ratchet shown in FIG. Claw magnetic groove 83, inner tank magnetic groove 15, ratchet magnetic groove 83 are fixedly installed with the magnet that the magnetic pole opposes and attracts each other respectively. When the ratchet 81 is matched and connected with the inner tank claw groove 14 and the shell wall claw groove 93, the magnet in the inner tank magnetic groove 15 and the magnet in the ratchet magnetic groove 83 are closely attracted together, and the ratchet mechanism 8 and the second ratchet mechanism are realized. A fixed connection of the liner 1 in the up and down direction.

Thus, when the test paper cartridge 100 is not loaded into the body fluid detection device 200, the ratchet mechanism 8 is respectively matched and connected with the first inner tank 1 and the housing 9 through the ratchet 81, so as to restrict the movement of the first inner tank 1 relative to the housing. 9 turns. At the same time, a magnetic structure is adopted, and the ratchet mechanism 8 is fixedly connected to the upper end surface of the first liner 1 in the vertical direction, so as to prevent the ratchet mechanism 8 from falling off.

As shown in FIG. 8 , the ratchet mechanism 8 also has a drawing part 82 rigidly connected to the end surface where the ratchet magnetic groove 83 is located, and the end surface where the ratchet magnetic groove 83 is located can move up and down under the action of the drawing part 82 .

After the test paper drum 100 is loaded into the body fluid detection device 200, pull up the drawing part 82 with one hand, and press the first inner tank 1 with the other hand. When the magnet attracts the force, the end surface where the pawl magnetic groove 83 is located moves upwards and is separated from the upper end surface of the first inner container 1 , and then the ratchet mechanism 8 and the first inner container 1 are separated from each other. Preferably, the lower end surface of the drum cover 5 is also fixedly equipped with a magnet, and at this time, the drum cover 5 can be installed on the upper end surface of the first inner container 1 and magnetically connected with the first inner container 1 .

The combination of pawl and magnetic attraction can effectively limit the rotation of the first inner tank 1 relative to the housing 9, and also make the pawl mechanism 8 very convenient to install and disassemble, simplifying the structure and improving the convenience of assembly degree and convenience of transportation.

(the flexible connector between the drum cover and the first inner tank)

As a preferred mode, as shown in Figure 1, a flexible connector 53 such as a rope is provided between the drum cover 5 and the first inner container 1, and when the drum cover 5 rotates relative to the first inner container 1, the flexible connection Part 53 can follow the drum cover 5 to twist without being damaged. The main function of the flexible connector 53 is that when the drum cover 5 is removed, the first liner 1 will be pulled up by the flexible connector 53 and removed together with the drum cover 5 .

Further, between the first liner 1 and the second liner 2, preferably an up and down connection structure is provided, for example, the outer wall of the liner connecting shaft 13 and the inner wall of the liner connecting hole 23 are connected by thread or interference fit , it is also possible to insert a screw from the center of the radial section of the lower end of the second liner 2, the screw passes through the second liner 2 and the partition hole 42 from bottom to top, and is screwed into the screw hole of the first liner 1 In this process, the fixed connection between the first inner tank 1 and the second inner tank 2 in the up-down direction is realized.

According to this, when all the stored test papers are detected and the test paper drum 100 is replaced, the drum cover 5 is pulled up by manpower, and the drum cover 5 pulls up the first inner container 1 through the flexible connector 53, and the first inner container 1 is pulled The second liner 2 is lifted up, and the second liner 2 pulls up the whole housing 9 through the partition plate 4 again. In this way, the entire test paper drum 100 can be pulled up, thereby increasing the convenience of replacing the test paper drum 100 . At the same time, it can also avoid the problem of the human body being contaminated by body fluids when artificially replacing the test paper or disassembling parts one by one.

(test strips and bushings)

Next, the test paper and the liner 16 will be described in detail with reference to FIG. 11 . Fig. 11 is a schematic diagram of an exemplary test strip liner.

The commonly used test paper is a single strip, including a substrate and a plurality of test paper reaction areas fixed on the surface of the substrate. Each test paper reaction area contains a reactant corresponding to a certain index of the body fluid. The number is determined according to the quantity of the target to be measured in the body fluid. Preferably, these test paper reaction areas are arranged in sequence along the length direction of the test paper, and can be arranged in one row or two rows or distributed in a matrix.

During use, when the test paper falls from the storage compartment 12 to the detection compartment 22, due to factors such as the light weight of the test paper and electrostatic effects, the test paper may not be able to fall freely, and even if it falls, the posture deflection may occur, which affects the detection effect.

For this purpose, as shown in FIG. 11 , a bushing 16 for holding a test paper is provided. The bushing 16 includes a bushing main body 161 and a bushing clamping part 162. A clamping space 163 is formed between the bushing clamping part 162 and the bushing main body 161. The clamping space 163 can tightly clamp the test paper. The test paper and the bushing 16 There is an interference fit between them.

When in use, first store a single test paper in the holding space 163 , and then put the test paper together with the liner 16 in the storage compartment 12 . When falling, under the action of the counterweight and positioning of the bushing 16, it can ensure that the test paper falls smoothly to the detection chamber 22, and still maintains the correct posture after falling.

At this time, the size of the outer edge of the radial section of the bushing 16 is smaller than the size of the inner wall of the storage compartment 12 and the inner wall of the detection compartment 22 in the same direction, that is, there is a gap between the bushing 16 and the storage compartment 12 and the detection compartment 22 Cooperate to ensure the smooth drop of the bushing 16.

The material of the bushing 16 is generally a material resistant to body fluid corrosion, and the color of the outer surface is preferably black to absorb more stray light.

(white balance calibration)

In the present invention, after the test paper reacts with the body fluid, the sensor component 203 is used to obtain the color characteristics of the test paper surface, and judge whether the target to be tested in the body fluid exceeds the standard according to the change of the color characteristics. Therefore, the sensor assembly 203 should be able to detect color changes sensitively.

Here, the color sensor is taken as an example for specific description. As an optical sensor, affected by the environment and its own characteristics, the color sensor is prone to deviations in obtaining the color of objects. Therefore, white balance calibration is often required before use, usually relying on a pure white for comparison and reference. Thereby improving the accuracy of other color discrimination.

As a preferred manner, at least one of the test papers stored in the first inner container 1 is used as a calibration piece for performing white balance calibration on the color sensor. The surface of the calibration piece is single white, and the shape and material are preferably the same as other test papers, so as to reduce production and assembly costs.

When the first liner 1 and the second liner 2 are installed in the inner chamber of the housing 9, the storage compartment 12 where the calibrator is located is arranged above the test paper passage 43 of the partition 4, and the calibrator passes through the test paper passage 43 falls into the detection cabin 22 below, and is in the position facing the detection window 91. Thus, when the test paper drum 100 is loaded into the body fluid detection device 200, the sensor assembly 203 is aligned with the calibration piece through the detection window 91, and under the control of the control assembly 201, the white balance calibration is first performed to prepare for subsequent color recognition. Afterwards, the first inner container 1 and the second inner container 2 are rotated at a certain angle under the drive of the drive assembly 202, and the adjacent test paper replaces the calibrator and rotates to the position facing the detection window 91 to react with the body fluid and be detected by the sensor assembly. 203 Acquire the color feature after the reaction.

In this way, the convenience of white balance calibration of the sensor assembly 203 can be improved, and the deviation when the sensor assembly 203 obtains the color characteristics of the test paper can be effectively avoided, thereby improving the accuracy of analyzing the indicators to be measured in the body fluid.

As another embodiment, each reaction zone of a single test paper has a color characteristic corresponding to a certain index to be measured of the body fluid before being in contact with the body fluid.

Specifically, for example, two test papers A and B are produced, and each test paper has 3 reaction areas. The 3 reaction areas of the A test paper are used to detect the three indicators of 1, 2, and 3 in the body fluid, and the A test paper is in the It presents the initial color characteristics before contacting with body fluids. For example, the three reaction zones present three colors of red, yellow and blue and are arranged in a certain order. The three reaction zones of B test paper are used to detect 4, 5 and 6 in body fluids respectively. Three indicators, and the B test paper presents the initial color characteristics before it comes into contact with body fluids, for example, the three reaction zones present three colors of blue, green, and purple and are arranged in a certain order.

After the sensor assembly 203 has been calibrated for white balance, the paper to be tested enters the detection chamber 22 facing the detection window 91. Before the paper to be tested is sprayed with body fluid, the sensor assembly 203 first reads the color of the paper to be tested and changes the color of the paper to be tested. The reading result is sent to the control component 201. The control component 201 judges whether the type of the test paper is A or B according to the color characteristics of the paper to be tested, such as the color arrangement order, and judges which index in the body fluid the test paper is used to detect by judging the type of the test paper, and then calls and indexes The corresponding diagnosis model program.

According to the aforementioned technical solution, it is possible to set multiple types of test paper for detecting different indicators, and judge which type of test paper is used to detect the indicators in the body fluid according to the initial color characteristics of the test paper, so as to call the corresponding disease diagnosis in the control component The model expands the detection range of body fluid indicators.

It should be understood that the specific embodiments described above are only used to explain the present invention, and the protection scope of the present invention is not limited thereto. Changes, replacements, and combinations thereof should all be covered within the protection scope of the present invention.

Claims (13)

1. A test paper drum magazine for a body fluid detection device, comprising:

a substantially cylindrical case having a bottom, a first shaft hole being provided in a bottom of the case, and a window being opened in a side wall of the case;

the partition plate is arranged in the inner cavity of the shell and divides the inner cavity into a first space and a second space below the first space in the height direction of the shell, a second shaft hole is formed in the partition plate, and the axis of the second shaft hole is overlapped with the axis of the first shaft hole;

the first inner container is arranged in the first space and is provided with a plurality of storage cabins which are uniformly arranged in the circumferential direction;

a second inner container which is arranged in the second space and is provided with a detection cabin with an opening facing to the radial outer side;

a connecting shaft which is provided coaxially with the first shaft hole and the second shaft hole and is fixedly connected with at least the first inner container, and which is rotatable around the axis of the first shaft hole integrally with at least the first inner container;

the test paper is distributed in the storage cabins and provided with at least one reactant corresponding to the index to be measured of the body fluid, and the reactant and the body fluid show physical characteristics capable of evaluating the index to be measured when reacting;

the test chamber is used for carrying out body fluid test or calibration of physical characteristics based on a single test paper in the plurality of test papers;

a test paper channel for allowing a single test paper in the plurality of test papers to pass through is arranged on the partition plate, and when one storage cabin in the plurality of storage cabins of the first inner container rotates to a position corresponding to the test paper channel, the test paper in the storage cabin in the plurality of test papers passes through the test paper channel and falls into the detection cabin below;

the window is provided at a position corresponding to the opening of the test compartment in a height direction of the housing, and is used for introducing body fluid to a single test strip among the plurality of test strips falling into the test compartment.

2. The test paper drum magazine for body fluid testing device according to claim 1, characterized in that:

the first inner container and the second inner container are coaxially arranged, and the connecting shaft is fixedly connected with the first inner container and the second inner container respectively, so that when the first inner container rotates, the second inner container and the first inner container synchronously rotate;

the detection cabins of the second inner container are multiple and are the same as the storage cabins of the first inner container in number, and when the first inner container and the second inner container are respectively installed in the first space and the second space, the detection cabins and the storage cabins are arranged in a one-to-one up-and-down one-to-one correspondence mode.

3. A test strip drum magazine for a body fluid testing device according to claim 1, wherein:

the number of the detection cabins of the second inner container is 1, and when the second inner container is arranged in the second space, the opening of the detection cabin faces the window of the shell;

and a first limiting mechanism is arranged between the second inner container and the shell and used for limiting the rotation of the second inner container relative to the shell.

4. A test strip drum magazine for body fluid testing devices according to any one of claims 1 to 3, wherein:

and a second limiting mechanism is arranged between the first inner container and the shell and is used for limiting the rotation of the first inner container relative to the shell.

5. The test strip drum magazine for a body fluid testing device according to claim 4, comprising:

the elastic drum cover is detachably connected with one end of the shell far away from the bottom;

rigid connecting pieces serving as second limiting mechanisms are respectively arranged between the drum magazine cover and the first inner container as well as between the drum magazine cover and the shell and are used for limiting the rotation of the drum magazine cover relative to the first inner container and the shell,

when the torsional moments between the drum cover and the first inner container and between the drum cover and the shell reach the destructive moment of the rigid connecting piece, the rigid connecting piece is completely destroyed.

6. A test strip drum magazine for a body fluid testing device according to claim 5, wherein:

a flexible connecting piece is arranged between the drum magazine cover and the first inner container, and when the drum magazine cover rotates relative to the first inner container, the flexible connecting piece can rotate along with the drum magazine cover in a twisting mode and cannot be damaged.

7. The test paper drum magazine for body fluid testing device according to claim 1, characterized in that:

the physical characteristic is a color characteristic and,

at least one of the plurality of test strips is used for white balance calibration.

8. The test paper drum magazine for body fluid testing device according to claim 1, characterized in that:

each of the plurality of test strips includes a plurality of reaction zones, each of the plurality of reaction zones including a reactant corresponding to a desired indicator of a bodily fluid.

9. A test strip drum magazine for a body fluid testing device according to claim 8, wherein:

before contacting with body fluid, each reaction area in the reaction areas has a color characteristic corresponding to a certain index to be tested of the body fluid, and the color characteristic is used for judging the category of the paper to be tested in the test paper.

10. The test paper drum magazine for body fluid testing device according to claim 1, characterized in that:

the partition plate and the shell are integrally formed.

11. A test strip drum magazine for a body fluid testing device according to claim 1, comprising:

and the bushing is matched with the storage cabin and the detection cabin and is used for clamping, positioning and balancing weight of a single test paper in the plurality of test papers.

12. The test paper drum magazine for body fluid testing device according to claim 1, characterized in that:

one test paper is disposed in each of the plurality of storage compartments.

13. A body fluid testing device characterized by:

comprises a driving component, an angle detection component, a sensor component and a control component,

the driving assembly is connected with the connecting shaft and drives the first inner container to rotate or simultaneously drives the first inner container and the second inner container to rotate;

the angle detection assembly detects the rotation angle of the first inner container, converts the rotation angle into an electric signal and feeds back the electric signal to the control assembly;

the sensor assembly collects physical characteristics of a plurality of test paper entering the detection cabin after the test paper and body fluid react with each other, converts the physical characteristics into electric signals and transmits the electric signals to the control assembly;

the control assembly is electrically connected with the driving assembly, controls the rotation of the driving assembly according to preset conditions and the electric signal which is transmitted by the angle detection assembly and corresponds to the rotation angle, and analyzes the electric signal transmitted by the sensor assembly;

the body fluid testing device further comprises a test strip drum for a body fluid testing device according to any one of claims 1 to 12.

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