CN114983410A - Pig blood sampling collecting tool and using method thereof - Google Patents

Abstract

The invention discloses a pig blood collection tool, which comprises a hemospast and a storage part, wherein the hemospast is positioned in the storage part; the hemospast comprises a hemospast barrel, one end of the hemospast barrel is detachably connected with a blood sampling needle head, a hemospast is connected in the hemospast barrel in a sliding way, the hemospast is detachably connected with the hemospast barrel through the other end of the hemospast barrel, two ends of the hemospast barrel are respectively provided with a spiral screw cap for sealing the hemospast barrel, and the spiral screw cap is detachably connected with the hemospast barrel; the storage part comprises a placing box, the blood drawing cylinder and the spiral screw cap are both positioned in the placing box, and a protection piece convenient for the storage of the blood drawing cylinder is arranged in the placing box; the side wall of the placing box is fixedly connected with a clamping part which is convenient for the disassembly of the blood sampling needle head and the extracting piece, the blood drawing cylinder is positioned in the clamping part, and the clamping part is in transmission connection with the extracting piece. The invention can realize convenient storage of the collected sample and reduce the probability of pollution of the collected sample by the external environment.

Description

A pig blood collection tool and method of using the same

technical field

The invention relates to the technical field of animal husbandry, in particular to a pig blood collection tool and a method for using the same.

Background technique

In the process of pig breeding, it is necessary to regularly collect blood and test the pigs to monitor the health of the pigs. In the process of blood drawing, whether using a vacuum tube or a syringe for blood collection, it is faced with the problem of transferring samples during subsequent sample processing. , the sample transfer process may cause sample contamination or damage due to the operator's operation and operating environment.

In addition, it is best not to move the blood samples after collection, and it is best to leave them on the spot for about two hours before proceeding to the next step. Sample contamination or damage caused by the problem. Therefore, there is an urgent need for a pig blood collection tool and a method for using the same, which makes the collected samples easy to store and reduces the probability of contamination of the collected samples by the external environment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pig blood collection tool and a method for using the same, so as to solve the above problems in the prior art, facilitate the storage of samples after collection, and reduce the probability of contamination of the collected samples by the external environment.

In order to achieve the above object, the present invention provides the following solutions: the present invention provides a pig blood collection tool, comprising a blood drawer and a storage part, wherein the blood drawer is located in the storage part;

The blood drawer includes a blood draw cartridge, one end of the blood draw cartridge is detachably connected with a blood collection needle, and an extraction part is slidably connected in the blood draw cartridge, and the draw part is connected to the blood draw unit through the other end of the blood draw cartridge. The blood drawing cartridge is detachably connected, and both ends of the blood drawing cartridge are respectively provided with screw caps for sealing the blood drawing cartridge, and the screw caps are detachably connected to the blood drawing cartridge;

The storage part includes a placing box, the blood drawing cartridge and the screw cap are both located in the placing box, and a protective member is arranged in the placing box to facilitate the storage of the blood drawing cartridge;

The side wall of the placing box is fixed with a clamping part which is convenient for the disassembly of the blood collection needle and the extraction part, the blood drawing cartridge is located in the clamping part, and the clamping part is in driving connection with the extraction part.

Preferably, the extraction member includes an extraction piston provided in the blood extraction cartridge, the extraction piston is slidably connected to the inner wall of the blood extraction cartridge, and the extraction piston is detachably connected to the blood extraction cartridge, so An extraction rod is fixedly connected to a side of the extraction piston away from the blood collection needle, an extraction handle is fixedly connected to the end of the extraction rod, and the extraction rod is connected with the clamping portion in a driving manner.

Preferably, the clamping portion includes a clamping block fixedly connected to the side wall of the placing box, a clamping groove is formed at the top of the clamping block, a limiting cylinder is inclined in the clamping groove, and the limiting The outer side wall of the bit cylinder is fixedly connected with the clamping block through a connecting rod, the limit cylinder is adapted to the screw cap, the blood drawing cylinder and the extraction handle, and the clamping block is far away from the A limiter is arranged on the side wall of the placing box, the limiter passes through the limiter tube and extends into the limiter tube, and the limiter is connected to the screw cap and the blood drawing tube. Abutting, the top end of the clamping block is fixed with a pull-out piece, and the pull-out piece is drivingly connected with the extraction rod.

Preferably, a first groove, a second groove, and a third groove are arranged in the limiting cylinder in sequence from top to bottom, and the first groove, the second groove, and the third groove The diameter of the groove decreases sequentially from top to bottom, and the first groove, the second groove, and the third groove communicate with each other, and the screw cap is adapted to the first groove, The blood drawing cartridge is matched with the second groove, and the drawing handle is matched with the third groove.

Preferably, a long groove is formed on the side of the clamping block away from the placing box, the limiting member includes a moving rod disposed in the long groove, and the moving rod is slidably connected to the clamping block , the end of the moving rod close to the limit cylinder passes through the clamping block and is fixed with a connecting plate, and the end of the connecting plate away from the moving rod is fixed with a first limit rod and a second limit A limit rod, the first limit rod passes through the limit cylinder and extends into the first groove, and the second limit rod passes through the limit cylinder and extends into the second groove In the groove, one end of the first limit rod and the second limit rod close to the limit cylinder are respectively fixed with insert blocks, and the outer side wall of the blood drawing cylinder and the outer side wall of the screw cap are respectively opened. There is a slot, the insert block on the first limit rod extends into the slot on the screw cap, and the insert block on the second limit rod extends into the blood drawing tube in the slot above.

Preferably, an elastic plate is fixed on the moving rod, the elastic plate is located in the long groove, a first compression spring is sleeved on the moving rod, and the first compression spring is located between the elastic plate and the long groove. Between the clamping blocks, and both ends of the first compression spring are respectively fixed to the elastic plate and the clamping block.

Preferably, the pull-out piece includes two oppositely arranged support plates, the bottom end of the support plates is fixedly connected with the top end of the clamping block, a rotating rod is fixedly connected between the two support plates, and the rotating rod rotates on the A support rod is connected, the support rod is located above the extraction rod, an extrusion groove is opened at one end of the support rod close to the extraction rod, and a second compression spring is arranged in the extrusion groove, and the second compression spring is arranged in the extrusion groove. One end of the compression spring is fixedly connected with the support rod, and the other end of the second compression spring is fixedly connected with an extrusion block, the extrusion block is slidably connected with the support rod, and a plurality of wedge-shaped blocks are fixed on the extraction rod , the pressing block is in contact with any of the wedge-shaped blocks.

Preferably, the protection member includes a plurality of storage slots opened at the top of the placing box, the storage slots are arranged obliquely, the blood drawing cartridge is located in the storage slot, and a protective cover is detachably connected to the top of the storage box.

Preferably, a refrigeration slot is opened on a side of the placing box away from the clamping block, the refrigeration slot is located below the storage slot, and a refrigeration box for refrigeration is arranged in the refrigeration slot, and the refrigeration box is connected to the storage slot. The placement box is slidably connected.

A method for using a pig blood collection tool, the operation steps include:

a. Draw blood: insert the blood collection needle into the pig, and pull the draw handle in the opposite direction to draw blood;

b. Replace the blood collection needle: After completing step a, put one end of the extraction rod into the limit cylinder, pull the moving rod to lock the blood collection cylinder, rotate and remove the blood collection needle, and install the screw cap on one end of the blood collection needle. ;

c. Replace the extraction rod; after completing step b, take out the blood extraction cylinder, put the end of the screw cap after installation into the limiting cylinder, pull the moving rod to lock the limiting cylinder, and then rotate the support rod to take out the extraction piston , and rotate to install another screw cap;

d. Store the blood drawing cartridge; after completing step c, take out the blood drawing cartridge, and place the blood drawing cartridge in the storage tank.

The present invention discloses the following technical effects:

1. Set the blood collection needle and the extraction part to a detachable structure. After the blood collection is completed, remove the blood collection needle and the extraction part, and install a screw cap with good sealing on both ends to make blood draw. The cartridge is matched with the screw cap to form a container for storing blood samples. The drawn blood samples do not need to be transferred to other containers. On the one hand, the possibility of blood samples being polluted by the external environment is reduced. On the other hand, after the blood samples are collected No need to move too much, which is convenient for later use.

2. By setting a clamping part outside the placing box, the clamping part is used when the blood collection needle and the extraction part are disassembled. On the one hand, the blood collection tube is fixed, so that the removal of the extraction part and the blood collection needle head is easier; When the needle is disassembled, the blood drawing tube is not easy to shake, so that the blood in the blood drawing tube is not easy to shake, so that it is convenient for later use.

3. By setting the protection piece, the protection piece protects the stored sample blood and reduces the influence of the external environment on the sample blood.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

1 is a perspective view of a pig blood collection tool;

Figure 2 is an exploded view of the blood drawer;

Figure 3 is a perspective view of a sample blood storage state;

Fig. 4 is the perspective view of the state in which the clamping part disassembles the blood collection needle;

FIG. 5 is a perspective view of a state in which the clamping part is disassembled to extract the piston;

Fig. 6 is the structural schematic diagram of the state in which the stopper disassembles the blood collection needle;

FIG. 7 is a schematic structural diagram of the state in which the stopper is disassembled to extract the piston;

Figure 8 is a schematic structural diagram of a support rod;

Among them, 1- blood collection tube, 2- blood collection needle, 3- screw cap, 4- placement box, 5- extraction piston, 6- extraction rod, 7- extraction handle, 8- clamping block, 9- clamping groove , 10-limiting cylinder, 11-connecting rod, 12-first groove, 13-second groove, 14-third groove, 15-long groove, 16-moving rod, 17-connecting plate, 18- The first limit rod, 19-second limit rod, 20-insert block, 21-slot, 22-elastic plate, 23-first compression spring, 24-support plate, 25-rotation rod, 26-extrusion Slot, 27-second compression spring, 28-extrusion block, 29-wedge block, 30-storage slot, 31-protective cover, 32-refrigeration box, 33-support rod, 34-armrest.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The present invention provides a pig blood collection tool, comprising a blood drawer and a storage part, wherein the blood drawer is located in the storage part; An extraction piece is slidably connected inside, and the extraction piece is detachably connected to the blood extraction cylinder 1 through the other end of the blood extraction cylinder 1. The two ends of the blood extraction cylinder 1 are respectively provided with a screw cap 3 for sealing the blood extraction cylinder 1. The screw cap 3 Removably connected with the blood drawing cartridge 1; the storage part includes a placing box 4, the blood drawing cartridge 1 and the screw cap 3 are both located in the placing box 4, and the placing box 4 is provided with a protective member for the storage of the blood drawing cartridge 1; the placing box 4. The side wall is fixed with a clamping part which is convenient for the disassembly of the blood sampling needle 2 and the extraction part. The blood drawing cartridge 1 is located in the clamping part, and the clamping part is connected with the extraction part by transmission.

The blood collection needle 2 is threadedly connected with the blood collection cartridge 1. After the blood is drawn, first place one end of the extraction piece on the clamping part and fix it, then rotate the blood collection needle 2 and remove the blood collection needle 2, and replace the screw cap 3. Seal the blood collection tube 1, then use the clamping part to clamp and fix the end of the blood collection tube 1 that has been replaced with the screw cap 3, and use the clamping part to separate the extraction piece from the blood collection tube 1 and replace it. The other screw cap 3 is screwed. After the two screw caps 3 are replaced, the blood drawing cartridge 1 is taken out, and the blood drawing cartridge 1 is put into the storage box 4 for storage protection.

To further optimize the scheme, the extraction piece includes an extraction piston 5 arranged in the blood drawing tube 1, the extraction piston 5 is slidably connected with the inner wall of the blood drawing tube 1, and the extraction piston 5 is detachably connected with the blood drawing tube 1, and the extraction piston 5 is far away from the blood collection needle. One side of 2 is fixedly connected with an extraction rod 6, the end of the extraction rod 6 is fixedly connected with an extraction handle 7, and the extraction rod 6 is connected with the clamping part in a driving manner. The extraction handle 7 facilitates the pulling of the extraction rod 6 to move the extraction piston 5 to facilitate the blood extraction operation. In order to avoid contamination of the sample blood by the external environment, the blood collection needle 2 should be replaced first. When the blood collection needle 2 is replaced, due to the existence of the screw cap 3, when the extraction piston 5 needs to be taken out from the blood collection cartridge 1, on the one hand, the extraction It is difficult to take out the plunger 5 . On the other hand, when the plunger 5 is taken out, the sample blood in the blood sampling tube 1 is easily shaken. Therefore, a clamping part is provided to reduce the difficulty of taking out the plunger 5 .

In this technical solution, the blood collection cartridge 1, the blood collection needle 2, the extraction piston 5, the extraction rod 6, the extraction handle 7, etc. can be sterilized and used multiple times to reduce the use cost.

The solution is further optimized. The clamping part includes a clamping block 8 that is fixedly connected to the side wall of the placing box 4. A clamping groove 9 is formed at the top of the clamping block 8, and a limiting cylinder 10 is inclined in the clamping groove 9. The limiting cylinder 10 The outer side wall is fixedly connected with the clamping block 8 through the connecting rod 11, the limit cylinder 10 is adapted to the screw cap 3, the blood drawing cylinder 1, and the extraction handle 7, and the clamping block 8 is far from the side wall of the placing box 4. Positioning member, the limiting member passes through the limiting cylinder 10 and extends into the limiting cylinder 10, the limiting member is in contact with the screw cap 3 and the blood drawing cylinder 1, and the top of the clamping block 8 is fixed with a pull-out member, which can be pulled out. The outgoing piece is connected with the extraction rod 6 in a driving manner. The limiter cooperates with the limiter tube 10 to achieve clamping and fixation of the blood collection tube 1 and the screw cap 3. When the blood collection needle 2 is disassembled, the extraction handle 7 and the extraction rod pass through the limiter tube 10, and the limit The device clamps and fixes the blood collection tube 1 in the limit tube 10, so as to facilitate the disassembly of the blood collection needle 2. When the extraction piston 5 is removed, the replaced screw cap 3 is located in the limit tube 10, and the limit member is opposite to The screw cap 3 in the limit cylinder 10 is clamped and fixed, so as to facilitate the removal of the extraction piston 5. When the extraction piston 5 and the blood collection needle 2 are disassembled, due to the existence of the limit cylinder 10, the blood collection cylinder 1 is not easy to be Shake, so as to achieve the purpose of protecting the sample blood in the blood drawing cartridge 1 .

To further optimize the solution, the limiting cylinder 10 is sequentially provided with a first groove 12, a second groove 13, a third groove 14, a first groove 12, a second groove 13, and a third groove from top to bottom. The diameter of 14 decreases sequentially from top to bottom, and the first groove 12, the second groove 13, and the third groove 14 are connected to each other. The second groove 13 is adapted to fit, and the extraction handle 7 is adapted to the third groove 14 . The first groove 12 , the second groove 13 , and the third groove 14 in the limiting cylinder 10 are stepped structures, wherein the existence of the third groove 14 is to facilitate the extraction of the handle 7 and the extraction rod 6 The cartridge 10 is used to fix the blood drawing cartridge 1. When the blood drawing needle 2 is removed, the blood drawing cartridge 1 is located in the second groove 13 and is fixed by the stopper. When the drawing piston 5 is removed, the screw cap 3 is located in the second groove 13. inside the first groove 12 and fixed by the limiting member.

The solution is further optimized. A long groove 15 is provided on the side of the clamping block 8 away from the placing box 4 , and the limiter includes a moving rod 16 arranged in the long groove 15 . The moving rod 16 is slidably connected to the clamping block 8 , and the moving rod 16 One end close to the limiting cylinder 10 passes through the clamping block 8 and is fixed with a connecting plate 17 , and one end of the connecting plate 17 away from the moving rod 16 is fixed with a first limiting rod 18 and a second limiting rod 19 . The limit rod 18 passes through the limit cylinder 10 and extends into the first groove 12, the second limit rod 19 passes through the limit cylinder 10 and extends into the second groove 13, the first limit rod 18 and the second limit rod 19 One end of the limit rod 19 close to the limit cylinder 10 is respectively fixed with insert blocks 20, the outer side wall of the blood drawing cylinder 1 and the outer side wall of the screw cap 3 are respectively provided with slots 21, and the plug blocks 20 on the first limit rod 18 It extends into the slot 21 on the screw cap 3 , and the plug 20 on the second limit rod 19 extends into the slot 21 on the blood drawing cartridge 1 . By adjusting the position of the moving rod 16 , the positions of the first limiting rod 18 and the second limiting rod 19 on the moving rod 16 are changed, because the slots 21 are provided on both the blood drawing cartridge 1 and the screw cap 3 . , when the insert block 20 is located in the slot 21, the screw cap 3 can be fixed by the first limit rod 18, and the second limit rod 19 can be fixed on the blood drawing cartridge 1, which is easy to use and has high practicability.

In this technical solution, the length of the second limit rod 19 should be longer than the length of the first limit rod 18, so that the second limit rod 19 can normally fix the blood drawing tube 1, and the first limit rod 18 can screw the The cover 3 is fixed normally.

In a further optimized solution, an elastic plate 22 is fixed on the moving rod 16, the elastic plate 22 is located in the long groove 15, a first compression spring 23 is sleeved on the moving rod 16, and the first compression spring 23 is located between the elastic plate 22 and the clamping block. 8, and the two ends of the first compression spring 23 are respectively fixed to the elastic plate 22 and the clamping block 8. When the blood drawing cartridge 1 or the screw cap 3 is fixed, the first compression spring 23 should be in a stretched state, and the first compression spring 23 has a force to restore the initial state, thereby pressing the insert block 20 into the slot 21 , when the blood drawing cartridge 1 or the screw cap 3 is fixed, it is not easy to separate.

To further optimize the solution, the pull-out piece includes two oppositely arranged support plates 24, the bottom end of the support plate 24 is fixedly connected with the top end of the clamping block 8, a rotating rod 25 is fixedly connected between the two support plates 24, and the rotating rod 25 is rotatably connected with a support. The rod 33, the support rod 33 is located above the extraction rod 6, the end of the support rod 33 close to the extraction rod 6 is provided with a squeeze groove 26, the squeeze groove 26 is provided with a second compression spring 27, and one end of the second compression spring 27 is connected to the support rod. 33 is fixedly connected, the other end of the second compression spring 27 is fixedly connected with an extrusion block 28, the extrusion block 28 is slidably connected with the support rod 33, and a number of wedge-shaped blocks 29 are fixed on the extraction rod 6, and the extrusion block 28 is connected to any wedge-shaped block 28. Block 29 abuts. Under the action of the wedge-shaped block 29 , when the bottom end of the support rod 33 moves toward the direction close to the blood-drawing cylinder 1 , the pressing block 28 is in sliding contact with the inclined surface of the wedge-shaped block 29 , and the pressing block 28 is in sliding contact with the inclined surface of the second compression spring 27 . Under the action, the extrusion block 28 is received into the extrusion groove 26. When the extrusion block 28 leaves the inclined surface of the wedge-shaped block 29, the extrusion block 28 pops up under the action of the second compression spring 27, and the extrusion block 28 and the wedge-shaped block 28. The vertical surface of 29 abuts, and then the bottom end of the support rod 33 is moved away from the blood drawing tube 1, and the squeeze block 28 drives the wedge block 29, which in turn drives the drawing rod 6 to leave the blood drawing tube 1. When the squeeze block 28 When the wedge block 29 is no longer in contact, the above process is repeated. Due to the existence of the rotating rod 25, the extraction rod 6 can be easily taken out by utilizing the lever principle.

In this technical solution, a handrail 34 is fixed at the top of the support rod 33 , and the handrail 34 can facilitate the movement of the support rod 33 , thereby facilitating the removal of the extraction rod 6 .

In this technical solution, a placement slot is opened at the top of any of the support plates 24, and the handrail 34 is located in the placement slot. When the support rod 33 does not need to be used, the support rod 33 can be moved, and the handrail 34 can be put into the placement groove, so that the handrail 34 and the support rod 33 do not affect the disassembly or installation of the workpiece on the blood drawing cartridge 1 .

In a further optimized solution, the protection member includes a plurality of storage slots 30 at the top and the top. The storage slots 30 are arranged obliquely. The blood drawing cartridge 1 is located in the storage slot 30. The top of the storage box 4 is detachably connected with a protective cover 31. The storage tank 30 is inclined, so that the blood drawing cartridge 1 is also inclined, and the inclined blood drawing cartridge 1 is easier to separate serum or plasma, so that the required samples can be obtained without a centrifuge or the like.

In this technical solution, if the sample needs to be centrifuged after standing, the blood drawing tube 1 of the device and the screw cap 3 cooperate, which can be applied to the existing conventional centrifuge, and can be directly placed in the centrifuge when centrifugation is required. Centrifugation in the process prevents subsequent sample blood from being damaged or reduced in the process of transferring the sample blood to a container suitable for the centrifuge.

In this technical solution, the inclination angle of the storage slot 30 is preferably 15° with the placement box 4, and the placement box 4 should be placed on a level ground or a desktop, and an anti-vibration sponge (not shown in the figure) should be placed in the storage slot 30. , in order to protect the blood drawing cartridge 1, and the shock-proof sponge can reduce the possibility of sample blood shock during transportation, and prevent the sample blood from hemolysis due to shock, etc., which makes the sample blood unusable.

In a further optimized solution, a refrigeration slot is provided on the side of the placing box 4 away from the clamping block 8 , and the refrigeration slot is located below the storage slot 30 . Because it is best not to move the sample blood after collection, it is better to leave it on the spot for about two hours before proceeding to the next step, but it may encounter problems such as excessive temperature, sunlight exposure, and poor environmental conditions in the pig house during the standing process. Sample contamination or damage. Therefore, a refrigerating box 32 for placing an ice pack is arranged under the storage tank 30 to control the ambient temperature of the sample blood, and the protective cover 31 preferably adopts a light-shielding material and a well-sealed structure to prevent exposure to light and contamination. The protection cover 31 can use the existing device structure, and will not be described here.

A method for using a pig blood collection tool, the operation steps include:

a. Draw blood: insert the blood collection needle 2 into the pig, and pull the draw handle 7 in the opposite direction to draw blood. Insert the blood collection needle 2 into the pig body, pull the extraction handle 7 to draw blood, and select the amount of blood drawn according to actual needs.

b. Replace the blood collection needle 2: after completing step a, put one end of the extraction rod 6 into the limiting cylinder 10, pull the moving rod 16 to lock the blood collection cylinder 1, and rotate the blood collection needle 2 to remove it. Rotate and install the screw cap 3 at one end of the pump. After the blood drawing is completed, pull the moving rod 16 and put the blood drawing tube 1 into the second groove 13, and the drawing handle 7 extends out of the limit tube 10 through the third groove 14. In addition, then turn the blood drawing cartridge 1 so that the slot 21 on the blood drawing cartridge 1 corresponds to the insert block 20 on the second limit rod 19, and then release the moving rod 16, and the moving rod 16 is in the first compression spring 23. Under the action of reset, the insert block 20 is driven into the slot 21, thereby realizing the fixation of the blood drawing cartridge 1. After the blood drawing cartridge 1 is fixed, the blood drawing needle 2 is removed and the screw cap 3 is replaced.

c. Replace the drawing rod 6; after completing step b, take out the blood drawing cartridge 1, put one end of the screw cap 3 after installation into the limiting cylinder 10, pull the moving rod 16 to lock the limiting cylinder 10, and then rotate The support rod 33 takes out the extraction piston 5 and rotates to install another screw cap 3 . Turn over the blood drawing tube 1, pull the moving rod 16, put the screw cap 3 into the first groove 12, release the moving rod 16 at any time, so that the insert on the first limit rod 18 extends into the screw cap 3 In the slot 21, the support rod 33 is then rotated, and when the bottom end of the support rod 33 moves toward the direction close to the blood drawing cartridge 1, the extrusion block 28 is in sliding contact with the inclined surface of the wedge block 29, and the extrusion block 28 is in the first Under the action of the two compression springs 27, the extrusion block 28 is received into the extrusion groove 26. When the extrusion block 28 leaves the inclined surface of the wedge-shaped block 29, the extrusion block 28 pops up under the action of the second compression spring 27, and squeezes The block 28 is in contact with the vertical surface of the wedge-shaped block 29, and then the bottom end of the support rod 33 is moved away from the blood-drawing cylinder 1, and the extrusion block 28 drives the wedge-shaped block 29, and then drives the extraction rod 6 to leave the blood-drawing cylinder 1, When the pressing block 28 no longer contacts the wedge-shaped block 29, the above process is repeated, and finally the extraction piston 5 is taken out.

d. Store the blood drawing cartridge 1 ; after completing step c, take out the blood drawing cartridge 1 and place the blood drawing cartridge 1 in the storage tank 30 . Place the blood drawing cartridge 1 with the two screw caps 3 replaced in the storage tank 30, put an ice pack in the refrigerating box 32 to cool down, and then cover the protective cover 31 on the storage tank 30 to protect the sample blood .

In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

The above-mentioned embodiments are only to describe the preferred modes of the present invention, but not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various modifications to the technical solutions of the present invention. Variations and improvements should fall within the protection scope determined by the claims of the present invention.

Claims (10)

1. The pig blood collection tool is characterized by comprising a hemospast and a storage part, wherein the hemospast is positioned in the storage part;

the hemospast comprises a hemospast barrel (1), one end of the hemospast barrel (1) is detachably connected with a blood sampling needle head (2), a drawing part is slidably connected in the hemospast barrel (1), the drawing part is detachably connected with the hemospast barrel (1) through the other end of the hemospast barrel (1), two ends of the hemospast barrel (1) are respectively provided with a spiral screw cap (3) for sealing the hemospast barrel (1), and the spiral screw cap (3) is detachably connected with the hemospast barrel (1);

the storage part comprises a placing box (4), the blood drawing tube (1) and the spiral screw cap (3) are both positioned in the placing box (4), and a protection piece convenient for the storage of the blood drawing tube (1) is arranged in the placing box (4);

the side wall of the placing box (4) is fixedly connected with a clamping part which is convenient for the blood sampling needle head (2) and the drawing part to be detached, the blood drawing cylinder (1) is positioned in the clamping part, and the clamping part is in transmission connection with the drawing part.

2. The pig blood collection kit of claim 1, wherein: the extraction piece is including setting up extraction piston (5) in the section of thick bamboo of drawing blood (1), extraction piston (5) with draw a blood section of thick bamboo (1) inner wall sliding connection, just extraction piston (5) with draw a blood section of thick bamboo (1) and can dismantle the connection, extraction piston (5) are kept away from one side rigid coupling of blood sampling syringe needle (2) has extraction pole (6), the terminal rigid coupling of extraction pole (6) has extraction handle (7), extraction pole (6) with the clamping part transmission is connected.

3. The pig blood collection kit of claim 2, wherein: the clamping part comprises a clamping block (8) fixedly connected with the side wall of the placing box (4), a clamping groove (9) is arranged at the top end of the clamping block (8), a limiting cylinder (10) is obliquely arranged in the clamping groove (9), the outer side wall of the limiting cylinder (10) is fixedly connected with the clamping block (8) through a connecting rod (11), the limiting cylinder (10) is matched with the spiral screw cap (3), the blood drawing cylinder (1) and the drawing handle (7), a limiting piece is arranged on the side wall of the clamping block (8) far away from the placing box (4), the limiting piece penetrates through the limiting cylinder (10) and extends into the limiting cylinder (10), the limiting piece is abutted against the screw cap (3) and the blood drawing tube (1), the top end of the clamping block (8) is fixedly connected with a pulling-out piece, and the pulling-out piece is in transmission connection with the extracting rod (6).

4. The pig blood collection kit of claim 3, wherein: first recess (12), second recess (13), third recess (14) have set gradually from top to bottom in spacing section of thick bamboo (10), first recess (12) second recess (13) third recess (14) diameter from top to bottom reduces in proper order, just first recess (12) second recess (13) third recess (14) communicate each other, spiral twist cap (3) with first recess (12) looks adaptation, draw a blood section of thick bamboo (1) with second recess (13) looks adaptation, extraction handle (7) with third recess (14) looks adaptation.

5. The pig blood collection kit of claim 4, wherein: an elongated slot (15) is formed in one side, away from the placing box (4), of the clamping block (8), the limiting piece comprises a moving rod (16) arranged in the elongated slot (15), the moving rod (16) is connected with the clamping block (8) in a sliding mode, one end, close to the limiting cylinder (10), of the moving rod (16) penetrates through the clamping block (8) and is fixedly connected with a connecting plate (17), one end, away from the moving rod (16), of the connecting plate (17) is fixedly connected with a first limiting rod (18) and a second limiting rod (19), the first limiting rod (18) penetrates through the limiting cylinder (10) and extends into the first groove (12), the second limiting rod (19) penetrates through the limiting cylinder (10) and extends into the second groove (13), and inserting blocks (20) are fixedly connected to one ends, close to the limiting cylinder (10), of the first limiting rod (18) and the second limiting rod (19), draw blood section of thick bamboo (1) lateral wall with slot (21) have been seted up respectively to spiral screw cap (3) lateral wall, inserted block (20) on first gag lever post (18) stretch into on spiral screw cap (3) in slot (21), on second gag lever post (19) inserted block (20) stretch into draw blood section of thick bamboo (1) on slot (21) in.

6. The pig blood collection kit of claim 5, wherein: an elastic plate (22) is fixedly connected to the moving rod (16), the elastic plate (22) is located in the long groove (15), a first compression spring (23) is sleeved on the moving rod (16), the first compression spring (23) is located between the elastic plate (22) and the clamping block (8), and two ends of the first compression spring (23) are fixedly connected with the elastic plate (22) and the clamping block (8) respectively.

7. The pig blood collection kit of claim 3, wherein: the pulling-out piece comprises two support plates (24) which are oppositely arranged, the bottom ends of the support plates (24) are fixedly connected with the top end of the clamping block (8), a rotating rod (25) is fixedly connected between the two support plates (24), the rotating rod (25) is rotatably connected with a support rod (33), the support rod (33) is positioned above the extracting rod (6), one end of the support rod (33) close to the extraction rod (6) is provided with an extrusion groove (26), a second compression spring (27) is arranged in the extrusion groove (26), one end of the second compression spring (27) is fixedly connected with the support rod (33), the other end of the second compression spring (27) is fixedly connected with an extrusion block (28), the extrusion block (28) is connected with the supporting rod (33) in a sliding way, a plurality of wedge blocks (29) are fixedly connected to the extraction rod (6), and the extrusion block (28) is abutted to any one of the wedge blocks (29).

8. The pig blood collection kit of claim 2, wherein: the protection piece is including offering place with a plurality of holding tanks (30) on top, a plurality of holding tanks (30) slope setting, a blood drawing section of thick bamboo (1) is located in holding tank (30), it can dismantle on box (4) top and be connected with visor (31) to place.

9. The pig blood collection kit of claim 8, wherein: place box (4) and keep away from one side of grip block (8) has seted up the refrigeration groove, the refrigeration groove is located holding tank (30) below, be provided with in the refrigeration groove and be used for cryogenic refrigeration box (32), refrigeration box (32) with place box (4) sliding connection.

10. A method of using a pig blood collection tool according to any one of claims 1-9, wherein the method comprises the steps of: the operation steps comprise:

a. blood drawing: the blood taking needle head (2) is inserted into the pig body, and the drawing handle (7) is pulled in the opposite direction to draw blood;

b. replacing the blood sampling needle head (2): after the step a is finished, one end of the extraction rod (6) is placed into the limiting cylinder (10), the moving rod (16) is pulled to lock the blood extraction cylinder (1), and after the blood sampling needle head (2) is taken down in a rotating mode, the spiral screw cap (3) is installed at one end of the blood sampling needle head (2) in a rotating mode;

c. replacing the extraction rod (6); after the step b is finished, taking out the blood drawing tube (1), putting one end of the mounted spiral screw cap (3) into the limiting tube (10), pulling the moving rod (16) to lock the limiting tube (10), then rotating the support rod (33) to take out the drawing piston (5), and rotatably mounting another spiral screw cap (3);

d. a storage blood drawing cartridge (1); after the step c is finished, the blood drawing tube (1) is taken out, and the blood drawing tube (1) is placed in the storage groove (30).

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