CN209086261U - A reagent sampling device and a biochemical analyzer containing the same - Google Patents

Abstract

The utility model provides a kind of reagent sampling device, including sample introduction frame and specimen needle, and reagent rack is provided with isolation board along its outer rim, and isolation board top edge is higher than reagent bottle upper surface；Block piece is provided between isolation board and specimen needle, block piece includes the baffle being slidably connected with isolation board, baffle corresponds to reagent bottle bottle mouth position and offers several through-holes, and through hole is provided with rotor plate to control bottleneck and be in communication with the outside or close, and rotor plate is rotated using face where baffle as rotation axis.The utility model additionally provides a kind of Biochemical Analyzer containing reagent sampling device, including workbench, specimen needle, setting reaction tray on the table and mentioned reagent sampling device, is additionally provided with XYZ three-axis moving system above workbench；Several reaction cups and optical measurement structure are provided in reaction tray.The utility model has the advantages that the liquid in specimen needle, which will not be dripped, pollutes medicament in remaining sample bin or agent bin when being drawn reagent by specimen needle.

Description

A reagent sampling device and a biochemical analyzer containing the same

technical field

The utility model relates to the technical field of biochemical detection, in particular to a reagent sampling device and a biochemical analyzer containing the device.

Background technique

At present, with the continuous progress of social economy and science and technology, biochemical analysis technology has also achieved unprecedented development, and biochemical analyzers are becoming more and more popular in various large and medium-sized medical units.

The existing Chinese patent with the authorization announcement number CN104034908B discloses a new type of automatic biochemical analyzer, comprising a base (15), a reagent-sample adding and stirring system (4) and a control circuit module arranged on the base, A sample storage device, a reagent storage device, a rotary reaction disk (13), a stepping motor for driving the reaction disk to rotate, a cleaning system (11), a plunger pump (12), a photoelectric detection system (9), and a An XYZ three-axis motion system that drives the movement of the reagent-sample adding and stirring system; the reagent-sample adding and stirring system includes a sample needle, and the reagent storage device includes a reagent rack and a reagent compartment arranged on the reagent rack. The storage device includes a sample rack and a sample compartment arranged on the sample rack. When in use, the XYZ three-axis motion system is driven by the control circuit module to drive the reagent-sample adding and stirring system to transfer the reagents and samples from the reagent compartment and the sample compartment to the reaction cups in the reaction tray respectively. The reagent-sample adding and stirring system stirs the liquid in the reaction cup, and the reagent in the reaction cup reacts with the sample for detection.

The above-mentioned prior art solutions have the following defects: during the process of absorbing the reagent from the reagent chamber through the sample needle and injecting it into the reaction cup, the liquid in the sample needle will drip from the sample needle into the remaining reagent chambers, causing the reagent chambers to drop. The liquid inside will be mixed with other liquids, resulting in contamination of reagents.

Utility model content

One of the objectives of the present invention is to provide a reagent sampling device, the advantage of which is that after the reagent is sucked through the sample needle, the reagent will not drop under the passage of the sample needle.

The second purpose of the present invention is to provide a biochemical analyzer including a reagent sampling device, the advantage of which is that when the reagent is sucked through the sample needle, the liquid in the sample needle will not drip into other sample chambers or reagents Contaminated chemicals in the warehouse.

The above-mentioned first object of the present invention is achieved through the following technical solutions: a reagent sampling device, comprising a sampling rack and a sample needle for sucking the reagent in the sampling rack, the sampling rack including placing the reagent The reagent rack is provided with a number of reagent bottles, the reagent rack is provided with an isolation plate along its outer edge, and the edge of the isolation plate is higher than the upper end face of the reagent bottle;

A blocking member is arranged between the isolation plate and the sample needle to prevent the medicine on the sample needle from dripping into the reagent bottle. The blocking member includes a baffle that is slidably connected to the isolation plate, and the baffle corresponds to The bottle mouth of the reagent bottle is provided with a plurality of through holes, and the through holes are provided with a rotating plate to control the communication or closure of the bottle mouth with the outside world, and the rotating plate rotates with the surface where the baffle plate is located as the rotating axis.

Through the above technical solution, when it is necessary to take out the reagent in the reagent bottle through the sample needle, the sample needle moves towards the direction of approaching the reagent bottle until the sample needle contacts the rotating plate, and the rotating plate rotates so that the sample needle enters the reagent bottle and removes the reagent. The reagent in the bottle is sucked; after sucking, the sample needle moves away from the reagent bottle until it is above the baffle, and the rotating plate rotates to isolate the bottle mouth from the outside world. When the sample needle moves, the medicine dropped by the sample needle When it falls on the baffle and the rotating plate, it will not drip into the medicine bottle and cause contamination to the reagent.

The utility model is further provided that: the rotating member includes a fixed shaft arranged along the length direction of the baffle plate, the fixed shaft passes through the through hole, and the rotating plate is rotatably connected with the fixed shaft.

Through the above technical solution, the arrangement of the rotating plate and the fixed shaft can control the communication or isolation between the mouth of the reagent bottle and the outside world.

The utility model is further provided that: the fixed shaft is located at the central axis of the through hole.

The utility model is further provided that: a side of the isolation plate close to the baffle is provided with a chute for the baffle to slide.

Through the above technical solutions, the arrangement of the chute can realize the installation and removal of the baffle.

The utility model is further provided that: an elastic pad is arranged on the side of the rotating plate close to the sample needle.

Through the above technical solutions, the provision of the elastic pad can reduce the impact force between the rotating plate and the sample needle, and reduce the wear on the sample needle.

The utility model is further provided as follows: the sample introduction rack further comprises a sample rack, an isolation plate is also arranged on the outer edge of the sample rack, the end surface of the isolation plate is higher than the upper end surface of the sample bottle, and the sample bottle is connected with the sample bottle. A blocking member is also arranged between the sample needles.

Through the above technical solution, a blocking member is arranged between the sample bottle and the sample needle, which can prevent the reagent in the sample needle from falling into the sample bottle and contaminate the reagent in the sample bottle.

The utility model is further set as follows: the distance between the sample rack or the reagent rack and the isolation plate is 2-5 cm.

The utility model is further set as follows: the distance between the baffle plate and the upper end face of the reagent bottle or the sample bottle is 1.5-3 cm.

The above-mentioned second object of the present utility model is achieved through the following technical solutions: a biochemical analyzer containing a reagent sampling device, comprising a workbench, a sample needle, a reaction disk set on the workbench, and the above-mentioned reagent sampling device, the top of the worktable is also provided with an XYZ three-axis motion system that drives the movement of the sample needle;

The reaction disk is provided with several reaction cups and an optical measuring structure for measuring the absorbance of the substances in the reaction cups.

Through the above technical solution, when in use, the sample needle is driven by the XYZ three-axis motion system to extract the reagents and samples in the sample injection rack and inject them into the reaction disk respectively, react in the reaction cup of the reaction disk, and then optically measure The mechanism measures the absorbance of the substances in the reaction cup. During the process of sucking the reagent through the sample needle and transporting it to the reaction cup, the liquid in the sample needle will not drip into the rest of the sample chamber or the reagent chamber to contaminate the medicine.

To sum up, the beneficial technical effects of the present utility model are:

1. The setting of the stopper ensures that after the sample needle absorbs the reagent, the reagent will not drip under the path of the sample needle;

2. There are stoppers on the reagent rack and the sample rack, so that when the reagent is sucked through the sample needle, the liquid in the sample needle will not drip into the rest of the sample chamber or the reagent chamber to contaminate the medicine;

3. The setting of the buffer pad can reduce the abrasion when the rotating plate contacts the sample needle.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

FIG. 2 is a schematic structural diagram of a blocking member embodied in the present invention.

In the figure, 1. Workbench; 2. Reagent sampling device; 21. Sample injection rack; 211, Reagent rack; 2111, Reagent bottle; 212, Sample rack; 2121, Sample bottle; 22, XYZ three-axis motion system; 23 231, chute; 24, blocking member; 241, baffle plate; 2411, through hole; 242, rotating plate; 243, fixed shaft; 25, sample needle; 3, reaction plate.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

The utility model provides a reagent sampling device, and the utility model also provides a biochemical analyzer including the reagent sampling device. The biochemical analyzer of the reagent sampling device is described in detail below.

Referring to FIG. 1 , it is a biochemical analyzer containing a reagent sampling device disclosed by the utility model, including a workbench 1 and a reagent sampling device 2 arranged on the workbench 1 , and a reaction disk 3 is also set on the workbench 1 , the reaction plate 3 is provided with several reaction cups and an optical measuring structure for measuring the absorbance of the substances in the reaction cups. The reagent sampling device 2 includes a sampling rack 21 arranged on the workbench 1 and a sample needle 25 connected to the workbench 1 through an XYZ three-axis motion system 22. The sampling rack 21 includes a reagent rack 211 for placing reagents, and the reagent rack 211 Several reagent bottles 2111 are placed on it. The workbench 1 is also provided with a sample holder 212 , and a number of sample bottles 2121 are arranged on the sample holder 212 . When in use, the sample needle 25 is driven to move by the XYZ three-axis motion system 22, so that the sample needle 25 sucks and moves the reagent or sample in the reagent bottle 2111 or the sample bottle 2121 and injects it into the reaction cup, and then uses the optical measurement structure to measure the reaction cup. Absorbance measurements were performed on the substance inside.

The reagent rack 211 is provided with an isolation plate 23 along its outer edge, the upper edge of the isolation plate 23 is higher than the upper end surface of the reagent bottle 2111, and a space between the isolation plate 23 and the sample needle 25 is arranged to prevent the medicine in the sample needle 25 from dripping into the reagent bottle 2111 The inner blocking member 24, the blocking member 24 includes a baffle 241 slidably connected with the isolation plate 23, the baffle 241 corresponding to the bottle mouth of the reagent bottle 2111 is provided with a number of through holes 2411, and the through hole 2411 is connected with a rotating plate through the rotating member. 242 is used to control the bottle mouth of the reagent bottle 2111 to communicate with or close the outside world, and the rotating plate 242 rotates with the surface where the baffle plate 241 is located as the rotating axis. The rotating member includes a fixed shaft 243 along the length of the baffle plate 241 , the fixed shaft 243 passes through the through hole 2411 , the rotating plate 242 is rotatably connected with the fixed shaft 243 , and the fixed shaft 243 is located at the central axis of the through hole 2411 .

Referring to FIG. 2 , when the reagent in the reagent bottle 2111 needs to be taken out through the sample needle 25 , the sample needle 25 and the sample needle 25 move toward the direction of approaching the reagent bottle 2111 until the sample needle 25 and the sample needle 25 are in contact with the rotating plate 242 , and the rotating plate 242 Rotate so that the sample needle 25 enters the reagent bottle 2111, and sucks the reagent in the reagent bottle 2111; after the suction is completed, the sample needle 25 moves away from the reagent bottle 2111 until it is above the baffle 241. Turn the plate 242 rotates to isolate the bottle mouth from the outside world. When the sample needle 25 moves, the medicine dropped by the sample needle 25 falls on the baffle 241 and the rotating plate 242, and will not drop into the medicine bottle, causing contamination to the reagent.

A sliding groove 231 for the baffle 241 to slide is defined on the side of the isolation plate 23 close to the baffle. The setting of the chute 231 can realize the installation and removal of the baffle 241 .

An elastic pad is attached to the side of the rotating plate 242 close to the sample needle 25 , and the arrangement of the elastic pad can reduce the impact force between the rotating plate 242 and the sample needle 25 , thereby reducing the wear caused by the contact between the rotating plate 242 and the sample needle 25 . .

The outer edge of the sample holder 212 is also provided with an isolation plate 23 , and the upper end surface of the isolation plate 23 is higher than the upper end surface of the sample bottle 2121 . A blocking member 24 is disposed between the sample bottle 2121 and the sample needle 25 , which can prevent the reagent in the sample needle 25 from falling into the sample bottle and contaminate the reagent in the sample bottle 2121 . The distance between the sample rack 212 or the reagent rack 211 and the isolation plate 23 is 2˜5 cm. The distance between the baffle 241 and the upper end surface of the reagent bottle 2111 or the sample bottle 2121 is 1.5-3 cm.

The implementation principle of this embodiment is: when in use, the sample needle 25 is driven by the XYZ three-axis motion system 22 to move, so that the sample needle 25 sucks and moves the reagent or sample in the reagent bottle 2111 or the sample bottle 2121 and injects it into the reaction cup, Then, the absorbance of the substance in the cuvette is measured by the optical measuring structure. When taking out the reagent or sample from the reagent bottle 2111 or the sample bottle 2121 through the sample needle 25, the sample needle 25 moves towards the direction of approaching the reagent bottle 2111 until the sample needle 25 contacts the rotating plate 242, and the rotating plate 242 rotates to make The sample needle 25 enters the reagent bottle 2111 and sucks the reagent in the reagent bottle 2111; after the suction is completed, the sample needle 25 moves away from the reagent bottle 2111 until it is above the baffle 241, and the rotating plate 242 rotates to make the bottle mouth and the bottle mouth 2111. Outside isolation, when the sample needle 25 moves, the medicine dropped by the sample needle 25 falls on the baffle 241 and the rotating plate 242, and will not drop into the medicine bottle, causing contamination to the reagent.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (9)

1. a kind of reagent sampling device, including sample introduction frame (21) and the specimen needle (25) for drawing the reagent in sample introduction frame (21), The sample introduction frame (21) includes the reagent rack (211) for placing reagent, is placed with several reagent bottles (2111) in reagent rack (211), It is characterized by: the reagent rack (211) is provided with isolation board (23) along its outer rim, isolation board (23) top edge is higher than institute State reagent bottle (2111) upper surface；

Being provided between the isolation board (23) and the specimen needle (25) prevents the medicament on specimen needle (25) to be dropped in reagent Block piece (24) in bottle (2111), the block piece (24) includes the baffle (241) being slidably connected with the isolation board (23), Corresponding reagent bottle (2111) bottle mouth position of the baffle (241) offers several through-holes (2411), and through-hole passes through at (2411) Rotating member is rotatably connected to rotor plate (242) and is in communication with the outside or closes to control bottleneck, and rotor plate (242) is with baffle (241) Place face is that rotation axis is rotated.

2. a kind of reagent sampling device according to claim 1, it is characterised in that: the rotating member includes along baffle (241) fixing axle (243) of length direction setting, the fixing axle (243) pass through the through-hole (2411), the rotor plate (242) it is rotatablely connected with the fixing axle (243).

3. a kind of reagent sampling device according to claim 2, it is characterised in that: the fixing axle (243) is in through-hole (2411) at central axis.

4. a kind of reagent sampling device according to claim 1, it is characterised in that: the isolation board (23) is close to the gear Plate (241) side offers the sliding slot (231) for the baffle (241) sliding.

5. a kind of reagent sampling device according to claim 1, it is characterised in that: the rotor plate (242) is close to described Specimen needle (25) side is provided with elastic cushion.

6. a kind of reagent sampling device according to claim 1, it is characterised in that: the sample introduction frame (21) further includes sample Frame (212) is provided with several sample bottles (2121) on the specimen holder (212)；

Specimen holder (212) outer edge is also equipped with isolation board (23), and isolation board (23) upper surface is higher than the sample Bottle (2121) upper surface, is also equipped with block piece (24) between the sample bottle (2121) and the specimen needle (25).

7. a kind of reagent sampling device according to claim 6, it is characterised in that: the specimen holder (212) or the examination The distance between agent frame (211) and the isolation board (23) are 2 ~ 5cm.

8. a kind of reagent sampling device according to claim 6, it is characterised in that: the baffle (241) and the reagent The distance of bottle (2111) or sample bottle (2121) upper surface is 1.5 ~ 3cm.

9. a kind of Biochemical Analyzer containing reagent sampling device, including workbench (1), specimen needle (25), setting are in workbench (1) reaction tray (3) on and a kind of reagent sampling device as described in claim 1 ~ 8 is any, workbench (1) top is also It is provided with the XYZ three-axis moving system (22) of driving specimen needle (25) movement；

It is provided with several reaction cups on the reaction tray (3) and carries out the optical measurement knot of absorbance measurement to substance in reaction cup Structure.