CN111202531B - Domestic automatic blood glucose detection hemostix - Google Patents

Abstract

The present invention relates to a household automatic blood sugar detection blood sampling instrument, comprising a base and a cylindrical shell arranged on the base, the shell is a double-layer structure including an outer shell and an inner shell, a cavity is arranged between the outer shell and the inner shell, a first motor and an annular seat connected to the output shaft of the first motor are arranged in the inner shell, the annular seat is detachably connected to a needle disk, a mounting hole is arranged at the center of the needle disk, a second motor is also arranged on the annular seat, the output shaft of the second motor is connected to a driving wheel through an overrunning clutch, the driving wheel is arranged in the mounting hole, the output shaft of the second motor and the ratchet are both coaxial with the needle disk, and a plurality of blood sampling needles are evenly distributed in the circumferential direction of the needle disk. The present invention is used for diabetic patients to draw blood for blood sugar detection by themselves, and blood sampling is automatically completed while conveniently changing needles, which is convenient for people with inconvenient hand movements.

Description

A household automatic blood sugar detection blood sampling instrument

Technical field:

The present invention relates to the technical field of medical blood sugar detection equipment, and in particular to a household automatic blood sugar detection blood sampling instrument.

Background technique:

Diabetic patients need to frequently test their blood sugar levels in daily life to monitor changes in their condition. Currently, the commonly used testing tools are household automatic blood sugar meters and blood collection pens. Patients prick their fingers with the needle on the blood collection pen, then apply the blood on their fingers on the blood sugar test strip and put it into the automatic blood sugar meter to measure the blood sugar value. In order to ensure medical hygiene, the needle on the blood collection pen is disposable and needs to be replaced after one use. The needle replacement operation process is relatively complicated, and some elderly people have poor eyesight and find it difficult to see the needle clearly, so it is difficult for them to prick their fingers and change the needle by themselves. The patent with patent number ZL2019201711723.3 provides a rotatable blood collection needle, a movable blood collection push rod, and a first operating member that can drive the blood collection needle to rotate relative to the blood collection push rod. The user only needs to operate the first operating member to change and withdraw the blood collection needle, avoiding complex needle replacement operations, improving blood collection efficiency, and having a higher degree of automation. However, this structure cannot automatically and quickly retract the blood collection needle after insertion, and the first operating member needs to be manually operated to retract the used blood collection needle and replace the needle. This not only increases the pain when the finger is punctured, but also cannot be used by some elderly people with inconvenient hand movements.

Summary of the invention:

1. Technical issues to be solved

The present invention aims to provide a household automatic blood glucose testing blood sampling instrument, which is used for collecting blood samples when diabetic patients perform blood glucose testing on their own. It solves the problems that the prior art cannot quickly and automatically retract the blood collection needle, increases the pain when pricking the finger, and requires manual operation to insert and change the needle, which makes it unusable for some elderly people with limited hand movement.

(II) Technical solution:

In order to solve the above technical problems, the present invention adopts the following technical solutions: A household automatic blood glucose detection blood sampling instrument comprises a base and a cylindrical shell arranged on the base, wherein a first motor and an annular seat connected to the output shaft of the first motor are arranged in the shell, the annular seat is detachably connected to a needle disk, a mounting hole is arranged at the center of the needle disk, a second motor is also arranged on the annular seat, the output shaft of the second motor is connected to a driving wheel through an overrunning clutch, the driving wheel is arranged in the mounting hole, the output shaft of the second motor and the driving wheel are both coaxial with the needle disk, a plurality of blood collection needles are uniformly distributed in the circumferential direction of the needle disk, the blood collection needles can slide in the needle disk, the blood collection needles are aligned with the edge of the driving wheel, the driving wheel is provided with driving teeth, a finger placement groove is provided on the shell, a detection sensor is provided in the finger placement groove, the finger placement groove is aligned with the top of the blood collection needle, and the detection sensor, the first motor and the second motor are electrically connected with a processor and a battery.

The detection sensor is used to detect whether the finger is placed in the finger placement slot, and the processor is used to control the rotation angle of the first motor and the second motor. The rotation directions of the first motor and the second motor are opposite. The rotation of the second motor can make the driving wheel rotate, so as to push the blood collection needle out of the needle disk through the driving teeth and enter the finger placement slot to puncture the finger skin for blood collection. After the blood collection is completed, the processor controls the first motor to rotate so that the annular seat drives the needle disk to rotate a certain angle. After the driving teeth are out of contact with the blood collection needle, the used blood collection needle will retract into the needle disk and be collected into the shell, and another unused blood collection needle will be aligned with the finger placement slot to prepare for the next blood collection. The overrunning clutch is used to control the driving wheel and the Torque transmission between the annular seats, when the second motor controls the driving wheel to rotate, the overrunning clutch transmits the torque of the second motor to the driving wheel, so that the driving wheel rotates normally, when the first motor controls the annular seat to rotate, the second motor on the annular seat will also rotate, but due to the existence of the overrunning clutch, the rotational torque of the second motor will not be transmitted to the driving wheel, preventing the driving teeth from interfering with the rotation of the needle disk. After use, the several blood collection needles on the needle disk can be replaced by removing the entire needle disk from the annular seat, avoiding the replacement of the blood collection needle every time blood is collected, effectively improving work efficiency, and when collecting blood, the user only needs to put his finger into the finger placement slot to automatically complete the blood collection operation, the operation is simple and fast, and it is suitable for use by the elderly with inconvenient hand movements.

Furthermore, a slide groove and a needle seat that can slide in the slide groove are provided in the needle tray, a tension spring is provided between the needle seat and the bottom of the slide groove, the blood collection needle is detachably mounted on the needle seat, the bottom of the needle seat is aligned with the edge of the driving wheel, and the tension spring can retract the needle seat after the blood collection needle extends out of the finger placement slot, thereby achieving rapid puncture of the finger skin by the blood collection needle and reducing the pain of acupuncture. The used blood collection needle can be removed from the needle seat, and the needle tray can be recycled and reinstalled with a new blood collection needle.

Furthermore, the shell is a double-layer structure including an outer shell and an inner shell, a cavity is provided between the outer shell and the inner shell, and the inner shell is provided with pinholes which are the same in number as the lancets, one of the pinholes is aligned with the finger placement slot, and the pinhole is used so that when the driving wheel rotates, only one lancet that needs to pierce the finger is inserted into the finger placement slot, and the other unused lancets on the needle tray can enter the cavity through the pinhole, so that the needle heads of the unused lancets do not contact other objects, thereby ensuring the cleanliness and hygiene of the lancets.

Furthermore, an elastic clamping seat is provided on the needle seat, and the blood collection needle is installed in the elastic clamping seat, which facilitates the installation and removal of the blood collection needle.

Furthermore, a snap ring is provided on the side of the needle disk, and a slot corresponding to the snap ring is provided on the annular seat. The needle disk is connected to the annular seat through the cooperation between the snap ring and the slot. The needle disk can be easily removed from the annular seat for easy replacement.

Furthermore, a cover plate is threadedly connected to the side surface of the shell, and the cover plate is used to close the shell after the needle disk is installed on the annular seat to ensure the integrity and airtightness of the overall structure.

Furthermore, a disinfection groove is provided on the base, a disposable alcohol cotton bag is provided in the disinfection groove, a sealing cover is provided on the disinfection groove, a plurality of disposable alcohol cottons that can be used for disinfection are packed in the disposable alcohol cotton bag, and the user can take out the alcohol cotton in the disposable alcohol cotton bag to disinfect the finger before blood collection, and then put the finger into the finger placement groove for puncture and blood collection, so as to ensure the hygiene and safety of blood collection, and the sealing cover is used to cover the disinfection groove to prevent the alcohol cotton in the disposable alcohol cotton bag from volatilizing and becoming ineffective.

Furthermore, a handle is provided on the side of the needle disk, and the handle can facilitate installation and removal of the needle disk from the annular seat.

Furthermore, the detection sensor is an infrared sensor or a pressure sensor, and the infrared sensor or the pressure sensor can be used to detect whether a finger is placed in the finger placement slot to achieve automatic blood collection.

(III) Beneficial effects:

Compared with the prior art, the beneficial effects of the present invention are as follows: a finger placement slot with a detection sensor is provided on a cylindrical shell, a rotatable needle disk is provided in the shell, a plurality of blood collection needles are installed in the needle disk, and the blood collection needle is pushed by a driving wheel controlled by a motor to puncture the user's finger skin for blood collection. The blood collection needle has a fast insertion and withdrawal speed, which effectively reduces the pain at the finger puncture site, and after the blood collection is completed, a new blood collection needle is replaced by controlling the rotation of the needle disk. While the blood collection needle is automatically replaced after blood collection, the user only needs to put the finger into the finger placement slot to automatically complete the blood collection operation. The operation is simple and quick, and is suitable for use by elderly people with inconvenient hand movements.

Description of the drawings:

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

1 is a front structural sectional view of a household automatic blood glucose detection blood sampling instrument according to an embodiment of the present invention;

FIG2 is a side structural cross-sectional view of the household automatic blood glucose detection blood sampling instrument according to an embodiment of the present invention;

3 is a partial cross-sectional view of the needle disk portion of the household automatic blood glucose detection blood sampling instrument according to the embodiment of the present invention;

FIG4 is a control principle diagram of a household automatic blood glucose detection blood sampling instrument according to an embodiment of the present invention;

In the figure: 1, base; 2, shell; 201, outer shell; 202, inner shell; 203, cavity; 204, pinhole; 3, first motor; 4, annular seat; 5, needle plate; 6, mounting hole; 7, second motor; 8, overrunning clutch; 9, driving wheel; 10, blood collection needle; 11, driving tooth; 12, finger placement slot; 13, detection sensor; 14, processor; 15, battery; 16, slide slot; 17, needle seat; 18, tension spring; 19, elastic clamping seat; 20, snap ring; 21, slot; 22, cover plate; 23, disinfection slot; 24, disposable alcohol cotton bag; 25, handle; 26, sealing cover

Detailed ways:

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

A household automatic blood glucose detection blood sampling instrument as shown in Figures 1, 2, 3 and 4 comprises a base 1 and a cylindrical shell 2 arranged on the base 1, a first motor 3 and an annular seat 4 connected to the output shaft of the first motor 3 are arranged in the shell 2, a needle disk 5 is detachably connected to the annular seat 4, a mounting hole 6 is arranged at the center of the needle disk 5, a second motor 7 is also arranged on the annular seat 4, the output shaft of the second motor 7 is connected to a driving wheel 9 through an overrunning clutch 8, the driving wheel 9 is arranged in the mounting hole 6, the output shaft of the second motor 7 and the driving wheel 9 are coaxial with the needle disk 5, a plurality of blood collection needles 10 are uniformly distributed in the circumferential direction of the needle disk 5, the blood collection needle 10 can slide in the needle disk 5, the blood collection needle 10 is aligned with the edge of the driving wheel 9, the driving wheel 9 is provided with a driving tooth 11, a finger placement groove 12 is provided on the shell 2, a detection sensor 13 is arranged in the finger placement groove 12, the finger placement groove 12 is aligned with the top of the blood collection needle 10, the detection sensor 13, the first motor 3 and the second motor 7 are electrically connected with a processor 14 and a battery 15.

Preferably, a slide groove 16 and a needle seat 17 that can slide in the slide groove 16 are provided in the needle tray 5, and a tension spring 18 is provided between the needle seat 17 and the bottom of the slide groove 16. The blood collection needle 10 is detachably mounted on the needle seat 17, and the bottom of the needle seat 17 is aligned with the edge of the driving wheel 9. The tension spring 18 can retract the needle seat 17 after the blood collection needle 10 extends out of the finger placement groove 12, thereby achieving rapid puncture of the finger skin by the blood collection needle 10 and reducing the pain of the needle prick. The used blood collection needle 10 can be removed from the needle seat 17, and the needle tray 5 can be recycled and a new blood collection needle 10 can be reinstalled.

Preferably, the shell 2 is a double-layer structure including an outer shell 201 and an inner shell 202, a cavity 203 is provided between the outer shell 201 and the inner shell 202, and the inner shell 202 is provided with needle holes 204 which are the same in number as the lancets 10, one of the needle holes 204 is aligned with the finger placement groove 12, and the needle hole 204 is used to allow only one lancet 10 which needs to pierce the finger to extend into the finger placement groove 12 when the driving wheel 9 rotates, and the unused lancets 10 on the other needle trays 5 can enter the cavity 203 through the needle holes 204, so that the needle heads of the unused lancets 10 do not contact with other objects, thereby ensuring the cleanliness and hygiene of the lancets 10.

Preferably, an elastic clamping seat 19 is provided on the needle seat 17, and the blood collection needle 10 is installed in the elastic clamping seat 19, so as to facilitate the installation and removal of the blood collection needle 10.

Preferably, a snap ring 20 is provided on the side of the needle disk 5, and a slot 21 corresponding to the snap ring 20 is provided on the annular seat 4. The needle disk 5 is connected to the annular seat 4 through the cooperation between the snap ring 20 and the slot 21. The needle disk 5 can be easily removed from the annular seat 4 for easy replacement.

Preferably, a cover plate 22 is threadedly connected to the side of the housing 2, and the cover plate 22 is used to close the housing 2 after the needle plate 5 is installed on the annular seat 4, so as to ensure the integrity and airtightness of the overall structure.

Preferably, a disinfection groove 23 is provided on the base 1, and a disposable alcohol cotton bag 24 is provided in the disinfection groove 23. A sealing cover 26 is provided on the disinfection groove 23. The disposable alcohol cotton bag 24 contains a plurality of disposable alcohol cottons that can be used for disinfection. Before drawing blood, the user can take out the alcohol cotton in the disposable alcohol cotton bag 24 to disinfect the finger, and then put the finger into the finger placement groove 12 for puncture and blood drawing, so as to ensure the hygiene and safety of blood drawing. The sealing cover 26 is used to cover the disinfection groove 23 to prevent the alcohol cotton in the disposable alcohol cotton bag 24 from evaporating and becoming ineffective.

Preferably, a handle 25 is provided on the side of the needle dial 5 , and the handle 25 can facilitate installation and removal of the needle dial 5 from the annular seat 4 .

Preferably, the detection sensor 13 is an infrared sensor or a pressure sensor, which can be used to detect whether a finger is placed in the finger placement slot 12 to achieve automatic blood collection.

The method of using the household automatic blood sugar detection blood sampling instrument described in the present invention is as follows:

Before blood sampling, the user can disinfect the finger with the alcohol cotton in the disposable alcohol cotton bag 24, and then put the finger into the finger placement groove 12. After the detection sensor 13 detects that the finger is placed in the finger placement groove 12, the processor 14 controls the second motor 7 to start, and the second motor 7 rotates the driving wheel 9. The driving tooth 11 pushes the blood collection needle 10 out of the needle tray 5 and enters the finger placement groove 12 through the needle hole 204 to puncture the finger skin for blood sampling. After the driving tooth 11 rotates a certain angle to break away from the contact with the blood collection needle 10, the tension spring 18 retracts the blood collection needle 10 into the needle tray 5, thereby realizing the rapid insertion and withdrawal of the blood collection needle 10. Other blood collection needles 10 in the needle tray 5 that have not been used for blood sampling are pushed into the cavity 203 by the driving tooth 11, and do not contact other objects, thereby ensuring the cleanliness and hygiene of the unused blood collection needles 10. The user drops the blood from the punctured finger on the blood glucose test strip for blood glucose testing. After the blood collection is completed, the processor 13 controls the first motor 3 to rotate, so that the annular seat 4 drives the needle disk 5 to rotate a certain angle, and the used blood collection needle 10 rotates to an angle that is not aligned with the finger placement groove 12, and the other unused blood collection needle 10 is aligned with the finger placement groove 12, ready for the next blood collection. The overrunning clutch 8 is used to control the torque transmission between the drive wheel 9 and the annular seat 4. When the second motor 7 controls the drive wheel 9 to rotate, the overrunning clutch 8 transmits the torque of the second motor 7 to the drive wheel 9, so that the drive wheel 9 rotates normally. When the first motor 3 controls the annular seat 4 to rotate, the second motor 7 on the annular seat 4 will also rotate, but due to the existence of the overrunning clutch 8, the rotational torque of the second motor 7 will not be transmitted to the drive wheel 9, preventing the drive tooth 11 from interfering with the rotation of the needle disk 5. After use, the several blood collection needles 10 on the needle tray 5 can be replaced by unscrewing the cover plate 22 and removing the entire needle tray 5 from the annular seat 4 through the handle 25, thereby avoiding the need to replace the blood collection needle every time blood is collected. The replacement procedure of the needle tray 5 is simple, and the used blood collection needles 10 on the needle tray 5 can be replaced with new ones in batches, which effectively improves work efficiency. When collecting blood, the user only needs to put his finger into the finger placement slot 12 to automatically complete the blood collection operation. The operation is simple and quick, and is suitable for use by elderly people with inconvenient hand movements.

In summary, the home automatic blood glucose testing blood sampling instrument provided by the present invention is used for collecting blood samples when diabetic patients perform blood glucose testing by themselves. It solves the problems that the prior art cannot quickly and automatically retract the blood collection needle, increases the pain when pricking the finger, and requires manual operation to insert and change the needle, which is not suitable for some elderly people with limited hand movement.

The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications made based on the present invention belong to the scope of protection claimed by the present invention.

Claims (6)

1. A household automatic blood glucose detection blood sampling instrument, characterized in that it comprises a base and a cylindrical shell arranged on the base, a first motor and an annular seat connected to the output shaft of the first motor are arranged in the shell, a needle disk is detachably connected to the annular seat, a mounting hole is arranged at the center of the needle disk, a second motor is also arranged on the annular seat, the output shaft of the second motor is connected to the driving wheel through an overrunning clutch, the driving wheel is arranged in the mounting hole, the output shaft of the second motor and the driving wheel are coaxial with the needle disk, a plurality of blood collection needles are uniformly distributed in the circumferential direction of the needle disk, the blood collection needle can slide in the needle disk, the blood collection needle is aligned with the edge of the driving wheel, the driving wheel is provided with driving teeth, and a finger placement groove is provided on the shell. A detection sensor is provided in the finger placement groove, and the finger placement groove is aligned with the top end of the blood collection needle. The detection sensor, the first motor and the second motor are electrically connected to a processor and a battery. A slide groove and a needle seat that can slide in the slide groove are provided in the needle tray. A tension spring is provided between the needle seat and the bottom of the slide groove. The blood collection needle is detachably mounted on the needle seat, and the bottom of the needle seat is aligned with the edge of the driving wheel. The shell is a double-layer structure including an outer shell and an inner shell, and a cavity is provided between the outer shell and the inner shell. The inner shell is provided with needle holes that are the same in number as the blood collection needles, and one of the needle holes is aligned with the finger placement groove. An elastic clamping seat is provided on the needle seat, and the blood collection needle is mounted in the elastic clamping seat. 2. A household automatic blood glucose detection blood sampling instrument according to claim 1, characterized in that a clamping ring is provided on the side of the needle disk, and a clamping groove corresponding to the clamping ring is provided on the annular seat. 3. A household automatic blood glucose detection blood sampling instrument according to claim 1, characterized in that a cover plate is threadedly connected to the side of the shell. 4. A household automatic blood glucose detection blood sampling instrument according to claim 1, characterized in that: a disinfection tank is provided on the base, a disposable alcohol cotton bag is provided in the disinfection tank, and a sealing cover is provided on the disinfection tank. 5. A household automatic blood sugar detection blood sampling instrument according to claim 1, characterized in that a handle is provided on the side of the needle disk. 6. A household automatic blood sugar detection blood sampling instrument according to claim 1, characterized in that the detection sensor is an infrared sensor or a pressure sensor.