Blood collector

Abstract

The utility model relates to the technical field of blood collection, in particular to a blood collector which comprises a blood extraction and storage assembly, a negative pressure suction assembly and a handheld frame. The blood extraction and storage assembly comprises a suction liquid storage sleeve with a negative pressure hole in the rear side, a needle head installed on the front side of the suction liquid storage sleeve and a first rubber plug used for plugging the negative pressure hole to prevent blood in the suction liquid storage sleeve from leaking out. The rear portion of the suction liquid storage sleeve is detachably installed on the negative pressure suction assembly so that the negative pressure hole can be communicated with a suction opening of the negative pressure suction assembly, and the negative pressure suction assembly is installed on the handheld frame. According to the blood collector, in the blood taking process, only the blood extraction and storage assembly needs to be replaced, the negative pressure suction assembly and the handheld frame do not need to be replaced, waste of materials is reduced, the blood extraction and storage assembly can serve as a blood storage container, extra operation is not needed in the sample transferring process, and the risk of sample transferring is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blood collection, in particular to a blood collector. Background Art

[0002] Performing blood collection on ruminants is a key link to ensure animal health and public health safety. It is not only crucial for the early detection, monitoring and control of diseases, but also helps to evaluate the immune status of animals and conduct clinical diagnoses. In addition, blood samples are essential for scientific research, epidemiological investigations, regulatory compliance, and the quality and safety traceability system of animal products. Reasonable planning and implementation of blood collection work can minimize stress and harm to animals, while meeting animal welfare and ethical requirements, supporting the need for health certificates in international trade, thus maintaining public health safety and promoting the sustainable development of the animal industry.

[0003] Existing blood collectors are mostly disposable devices. Although they provide a hygienic and convenient way to collect blood samples, they also have problems such as material waste and the risk of sample transfer. These collectors need to be discarded after use, which not only increases costs but also may burden the environment. At the same time, in order to facilitate subsequent inspections, the blood samples in the blood collector need to be transferred to a collection tube. The sample transfer process requires additional operations, increasing the risk of sample transfer. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a blood collector that can reduce material waste and the risk of sample transfer.

[0005] To solve the above technical problem, a blood collector of the utility model includes a blood extraction and storage component, a negative pressure suction component, and a hand-held frame.

[0006] The blood extraction and storage component includes a suction and liquid storage sleeve with a negative pressure hole at the rear, a needle installed on the front side of the suction and liquid storage sleeve, and a first rubber plug head for plugging the negative pressure hole to prevent blood leakage from the suction and liquid storage sleeve. The rear part of the suction and liquid storage sleeve is detachably installed on the negative pressure suction component so that the negative pressure hole communicates with the suction port of the negative pressure suction component. The negative pressure suction component is installed on the hand-held frame.

[0007] As an improvement of the above solution, the negative pressure suction component includes a negative pressure suction barrel installed on the hand-held frame with the suction port facing forward, and a piston core rod that is slidably matched with the inner wall of the negative pressure suction barrel and extends out of the rear side of the negative pressure suction barrel.

[0008] As an improvement of the above solution, the negative pressure suction component further includes a connecting pipe. The rear part of the connecting pipe is fixedly connected to the front side of the negative pressure suction barrel, and the front end of the connecting pipe is threadedly connected to the rear end of the suction and liquid storage sleeve.

[0009] As an improvement of the above solution, the suction liquid storage sleeve includes a suction liquid storage barrel with an opening facing backward, and an isolation tube with a threaded connection at the front end to the suction liquid storage barrel and a threaded connection at the rear end to the front end of the connecting tube. A partition plate is provided in the middle of the isolation tube, and the negative pressure hole is provided in the middle of the partition plate.

[0010] As an improvement of the above solution, the connecting tube, the suction liquid storage barrel, and the isolation tube are all transparent, and a scale mark is provided on the outer side of the suction liquid storage barrel.

[0011] As an improvement of the above solution, the outer diameter of the front part of the first rubber plug head gradually increases from front to back, and the outer diameter of the front side is smaller than the inner diameter of the negative pressure hole and the outer diameter of the rear side is larger than the inner diameter of the negative pressure hole. The length of the middle part of the first rubber plug head matches the length of the negative pressure hole and the outer diameter matches the inner diameter of the negative pressure hole. The outer diameter of the rear part of the first rubber plug head is larger than the outer diameter of the rear side of the front part of the color calibration head.

[0012] As an improvement of the above solution, the blood collector of the present utility model further includes a disinfection component. The disinfection component includes a storage cylinder fixed on the handheld frame and arranged below the negative pressure suction component, a plurality of disinfection cotton blocks arranged side by side in the front-rear direction in the storage cylinder, a push rod slidably matched with the inner wall of the storage cylinder and extending out of the rear side of the storage cylinder to push the cotton ball forward, and a second rubber plug head for blocking the front end of the storage cylinder.

[0013] As an improvement of the above solution, the disinfection component further includes a connecting ring fixed at the front end of the storage cylinder and concentric with the storage cylinder. The inner diameter of the connecting ring is greater than or equal to the inner diameter of the storage cylinder. The outer diameter of the rear part of the second rubber plug head matches the inner diameter of the connecting ring, and the outer diameter of the front part of the second rubber plug head is the same as the outer diameter of the ring.

[0014] As an improvement of the above solution, the push rod includes a piston block located in the storage cylinder and slidably connected to the inner wall of the storage cylinder in the front-rear direction, and a rod body fixed on the piston block and extending out of the rear side of the storage cylinder. The outer diameter of the rod body is smaller than the outer diameter of the piston block and is concentric with the piston block.

[0015] As an improvement of the above solution, the disinfection component further includes two semi-circular rings. The two semi-circular rings are used to form a guiding ring with an inner diameter matching the outer diameter of the rod body and an outer diameter larger than the inner diameter of the storage cylinder. The semi-circular rings are detachably connected to the handheld frame.

[0016] Implementing the present utility model has the following beneficial effects:

[0017] The blood collector of the present utility model cooperates with a suction liquid storage sleeve, a negative pressure hole, a needle, a first rubber stopper head, a negative pressure suction assembly, and a hand-held frame. During blood collection, only the blood extraction and storage assembly needs to be replaced, without replacing the negative pressure suction assembly and the hand-held frame, reducing material waste. Moreover, the blood extraction and storage assembly can also be used as a container for storing blood, and no additional operation is required during the sample transfer process, reducing the risk of sample transfer. Description of the Drawings

[0018] Figure 1 It is the left view of the blood collector in the embodiment of the present utility model;

[0019] Figure 2 It is the working principle diagram of the blood collector in the embodiment of the present utility model;

[0020] Figure 3 It is Figure 2 the enlarged view of part A in

[0021] Figure 4 It is Figure 2 the enlarged view of part B in

[0022] Figure 5 It is the working principle diagram of the first rubber stopper head in the embodiment of the present utility model;

[0023] Figure 6 It is the rear view of the semi-circular ring installed on the hand-held plate in the embodiment of the present utility model.

[0024] In the figure:

[0025] 100, blood extraction and storage assembly; 110, suction liquid storage sleeve; 111, negative pressure hole; 112, suction liquid storage barrel; 113, isolation tube; 114, isolation plate; 120, needle; 130, first rubber stopper head;

[0026] 200, negative pressure suction assembly; 210, negative pressure suction barrel; 220, piston core rod; 230, connecting pipe;

[0027] 300, hand-held frame;

[0028] 400, disinfection assembly; 410, storage cylinder; 420, disinfected cotton block; 430, push rod; 431, piston block; 432, rod body; 440, second rubber stopper head; 450, connecting ring; 460, semi-circular ring. Detailed Embodiments

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly understand the technical idea claimed by the present utility model. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside, and outside that appear or will appear in the text of the present utility model are only based on the accompanying drawings of the present utility model, and they do not specifically limit the present utility model.

[0030] As Figures 1 to 6 shown, a blood collector in an embodiment of the present utility model includes a blood extraction and storage assembly 100, a negative pressure suction assembly 200, and a hand-held frame 300.

[0031] The blood extraction and storage assembly 100 includes a suction and liquid storage sleeve 110 with a negative pressure hole 111 provided at the rear side, a needle 120 installed on the front side of the suction and liquid storage sleeve 110, and a first rubber plug head 130 for plugging the negative pressure hole 111 to prevent the blood in the suction and liquid storage sleeve 110 from leaking out. The rear part of the suction and liquid storage sleeve 110 is detachably installed on the negative pressure suction assembly 200 so that the negative pressure hole 111 is communicated with the suction port of the negative pressure suction assembly 200. In fact, the suction and liquid storage sleeve 110 can be detachably connected to the negative pressure suction assembly 200 by means of threaded connection, snap connection, etc. At the same time, a sealing structure can be added at the connection between the suction and liquid storage sleeve 110 and the negative pressure suction assembly 200 to ensure the sealing performance at the connection between the suction and liquid storage sleeve 110 and the negative pressure suction assembly 200. When blood needs to be collected, the needle 120 on the front side of the suction and liquid storage sleeve 110 is inserted into the blood vessel of the ruminant. The negative pressure suction assembly 200 can be a syringe, a negative pressure pump, etc., which can act on the negative pressure hole 111 to generate negative pressure in the suction and liquid storage sleeve 110, so as to draw the blood in the blood vessel of the ruminant into the suction and liquid storage sleeve 110 through the needle 120. The suction and liquid storage sleeve 110 can be made of medical polymer materials to ensure the liquid storage effect of the suction and liquid storage sleeve 110 and facilitate subsequent inspection.

[0032] The negative pressure suction assembly 200 is installed on the hand-held frame 300. In fact, both the blood extraction and storage assembly 100 and the negative pressure suction assembly 200 are installed on the hand-held frame 300. The blood collection personnel can drive the blood collector to move by moving the hand-held frame 300, which is convenient to operate.

[0033] The specific working principle of the blood collector of the present utility model is as follows: The blood-taking personnel insert the needle 120 on the front side of the suction liquid storage sleeve 110 into the blood vessel of the ruminant animal to be blood-taken (at this time, the first rubber stopper head 130 does not block the negative pressure hole 111); the negative pressure suction assembly 200 works, and generates a negative pressure in the suction liquid storage sleeve 110 through the negative pressure hole 111, so that the liquid storage suction sleeve sucks the blood in the blood vessel of the ruminant animal through the needle 120; the negative pressure suction assembly 200 stops working, and the needle 120 is moved away from the blood vessel of the ruminant animal; the detachable connection between the suction liquid storage sleeve 110 and the negative pressure suction assembly 200 is released, and the first rubber stopper head 130 is inserted into the negative pressure hole 111, and the blood extraction and storage assembly 100 communicates with the blood therein for inspection.

[0034] The blood collector of the present utility model is mutually matched through the suction liquid storage sleeve 110, the negative pressure hole 111, the needle 120, the first rubber stopper head 130, the negative pressure suction assembly 200 and the hand-held frame 300. During the blood-taking process, only the blood extraction and storage assembly 100 needs to be replaced, and there is no need to replace the negative pressure suction assembly 200 and the hand-held frame 300, reducing the waste of materials. Moreover, the blood extraction and storage assembly 100 can also be used as a container for storing blood, and no additional operation is required during the sample transfer process, reducing the risk of sample transfer.

[0035] Specifically, the negative pressure suction assembly 200 preferably includes a negative pressure suction barrel 210 installed on the hand-held frame 300 with the suction port facing forward and a piston core rod 220 that is slidably matched with the inner wall of the negative pressure suction barrel 210 and extends out of the rear side of the negative pressure suction barrel 210. As Figure 2 shown, by pulling the piston core rod 220, the space enclosed by the front side of the piston core rod 220 and the negative pressure suction barrel 210 becomes larger to form a negative pressure, so that the suction port of the negative pressure suction assembly 200 sucks in air from the outside, and the needle 120 can suck the blood into the suction liquid storage sleeve 110 through the negative pressure hole 111, thereby realizing the suction function of the negative pressure suction assembly 200. In addition, the negative pressure suction barrel 210 and the piston core rod 220 can be obtained by removing the needle 120 from a common syringe.

[0036] More specifically, the negative pressure suction assembly 200 preferably further includes a connecting pipe 230. The rear part of the connecting pipe 230 is fixedly connected to the front side of the negative pressure suction barrel 210, and the front end of the connecting pipe 230 is threadedly connected to the rear end of the suction liquid storage sleeve 110. Since the syringe barrel in a commonly used syringe is not processed with threads or it is difficult to process threads on the syringe barrel in a commonly used syringe, by adding the connecting pipe 230, the rear part of the connecting pipe 230 can be fixed to the front side of the negative pressure suction barrel 210 through a sealing adhesive, and a sealing mechanism can be added to the threaded connection between the front end of the connecting pipe 230 and the rear end of the suction liquid storage sleeve 110 to improve the sealing performance at the connection between the front end of the connecting pipe 230 and the rear end of the suction liquid storage sleeve 110, realizing the detachable connection between the suction liquid storage sleeve 110 and the negative pressure suction assembly 200.

[0037] Furthermore, the suction liquid storage sleeve 110 preferably includes a suction liquid storage barrel 112 with an opening facing backward and a separation tube 113 whose front end is threadedly connected to the suction liquid storage barrel 112 and whose rear end is threadedly connected to the front end of the connecting pipe 230. A separation plate 114 is provided in the middle of the separation tube 113, and the negative pressure hole 111 is provided in the middle of the separation plate 114. In fact, a sealing mechanism can be added to the threaded connection between the separation tube 113 and the suction liquid storage barrel 112 to improve the sealing performance at the threaded connection between the separation tube 113 and the suction liquid storage barrel 112. By setting the suction liquid storage sleeve 110 as a split structure, the processing accuracy of the suction liquid storage sleeve 110 can be ensured to better store the drawn blood.

[0038] Even further, the connecting pipe 230, the suction liquid storage barrel 112, and the separation tube 113 are all transparent, and a scale mark is preferably provided on the outer side of the suction liquid storage barrel 112. The connecting pipe 230, the suction liquid storage barrel 112, and the separation tube 113 can be made of medical transparent plastic. During the blood collection process, it can be observed that the blood enters the suction liquid storage barrel 112. If the blood in the suction liquid storage barrel 112 is about to pass through the separation plate 114, the operation of the negative pressure suction assembly 200 can be stopped in time to prevent the blood from contacting the negative pressure suction assembly 200 and avoid infecting the blood drawn during the next use. In addition, the scale mark on the outer side of the suction liquid storage barrel 112 can assist the blood collection personnel in estimating the amount of blood drawn.

[0039] In fact, as Figure 5As shown, the outer diameter of the front part of the first rubber plug head 130 preferably gradually increases from the front to the back, the outer diameter of the front side is smaller than the inner diameter of the negative pressure hole 111, and the outer diameter of the rear side is larger than the inner diameter of the negative pressure hole 111. The length of the middle part of the first rubber plug head 130 matches the length of the negative pressure hole 111, and the outer diameter matches the inner diameter of the negative pressure hole 111. The outer diameter of the rear part of the first rubber plug head 130 is larger than the outer diameter of the rear side of the front part of the color calibration head. In fact, the first rubber plug head 130 may also be provided with a deformation cavity with an opening facing forward, providing a deformation space for the first rubber plug head 130 to be inserted into or pulled out of the negative pressure hole 111. When the front part of the first rubber plug head 130 enters the negative pressure hole 111, it enters the negative pressure hole 111 under the guiding action of the front part of the first rubber plug head 130 and deforms until the front part of the first rubber plug head 130 passes through the negative pressure hole 111. Under the action of the front and rear parts of the first rubber plug head 130, the first rubber plug head 130 is stuck in the negative pressure hole 111 to prevent blood from leaking out of the negative pressure hole 111, facilitating the transfer of the blood-filled aspiration reservoir sleeve 110.

[0040] It should be noted that the blood collector of the present utility model preferably further includes a disinfection assembly 400. The disinfection assembly 400 includes a storage cylinder 410 fixed on the hand-held frame 300 and arranged below the negative pressure suction assembly 200, a plurality of disinfection cotton blocks 420 arranged side by side in the front and back in the storage cylinder 410, a push rod 430 slidably matched with the inner wall of the storage cylinder 410 and extending out of the rear side of the storage cylinder 410 to push the cotton ball forward, and a second rubber plug head 440 for blocking the front end of the storage cylinder 410. When disinfection is required, the second rubber plug head 440 at the front end of the storage cylinder 410 is removed, and the push rod 430 is pushed forward to expose the foremost disinfection cotton block 420 in the storage cylinder 410 at the front end of the storage cylinder 410. This disinfection cotton block 420 is removed to disinfect the blood collection site. The disinfection assembly 400 can facilitate the disinfection of the blood collection site of ruminants.

[0041] Furthermore, the disinfection assembly 400 preferably further includes a connecting ring 450 fixed at the front end of the storage cylinder 410 and concentric with the storage cylinder. The inner diameter of the connecting ring 450 is greater than or equal to the inner diameter of the storage cylinder 410. The outer diameter of the rear part of the second rubber plug head 440 matches the inner diameter of the connecting ring 450, and the outer diameter of the front part of the second rubber plug head 440 is the same as the outer diameter of the ring. The second rubber plug head 440 is inserted through the connecting ring 450 to block the front end of the storage cylinder 410, playing a role in protecting the disinfection cotton blocks 420 in the storage cylinder 410 when the disinfection cotton blocks 420 do not need to be taken out. Moreover, the inner diameter of the connecting ring 450 is greater than or equal to the inner diameter of the storage cylinder 410, ensuring that the disinfection cotton blocks 420 with an outer diameter smaller than the inner diameter of the storage cylinder 410 can smoothly enter or leave the storage cylinder 410.

[0042] Specifically, the push rod 430 preferably includes a piston block 431 located inside the storage cylinder 410 and slidably connected to the inner wall of the storage cylinder 410 in the front and rear directions, and a rod body 432 fixed to the piston block 431 and extending out of the rear side of the storage cylinder 410. The outer diameter of the rod body 432 is smaller than the outer diameter of the piston block 431 and is concentrically arranged with the piston block 431. By matching the front side of the piston block 431 with the second rubber plug head 440, the contact between the disinfection cotton block 420 in the storage cylinder 410 and the external air can be isolated. At the same time, removing the second rubber plug head 440 can push the rod body 432 to push out the disinfection cotton block 420.

[0043] More specifically, the disinfection assembly 400 preferably further includes two semi-circular rings 460. The two semi-circular rings 460 are used to form a guiding circular ring with an inner diameter matching the outer diameter of the rod body 432 and an outer diameter larger than the inner diameter of the storage cylinder 410. The semi-circular rings 460 are detachably connected to the handheld frame 300. In fact, after the two semi-circular rings 460 are assembled into a guiding circular ring, they are movably connected to the rod body 432 and are installed on the handheld frame 300 by means of snap connection, threaded connection, etc. By cooperating with the piston block 431 through the two semi-circular rings 460, the moving direction of the rod body 432 can be further restricted, preventing the rod body 432 from deviating during the relative movement with respect to the storage cylinder 410.

[0044] The above are only specific embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A blood collector, characterized in that: It includes a blood extraction and storage component, a negative pressure suction component, and a handheld stand; The blood extraction and storage assembly includes a suction storage sleeve with a negative pressure hole on the rear side, a needle installed on the front side of the suction storage sleeve, and a first rubber plug head for plugging the negative pressure hole to prevent blood from leaking out of the suction storage sleeve. The rear part of the suction storage sleeve can be detachably mounted on the negative pressure suction assembly so that the negative pressure hole is connected to the suction port of the negative pressure suction assembly. The negative pressure suction assembly is mounted on a handheld frame.

2. A blood collector as claimed in claim 1, characterized in that: The negative pressure suction assembly comprises a negative pressure suction barrel installed on a handheld frame with a suction port facing forward, and a piston core rod slidingly matched with the inner wall of the negative pressure suction barrel and extending out of the rear side of the negative pressure suction barrel.

3. A blood collector as claimed in claim 2, characterized in that: The negative pressure suction assembly also includes a connecting pipe, the rear portion of which is fixedly connected to the front side of the negative pressure suction barrel, and the front end of the connecting pipe is threadedly connected to the rear end of the suction liquid storage sleeve.

4. A blood collector as claimed in claim 3, characterized in that: The suction liquid storage sleeve comprises a suction liquid storage barrel with an opening facing backwards and an isolation tube with a front end threadedly connected to the suction liquid storage barrel and a rear end threadedly connected to the front end of a connecting tube. An isolation plate is provided in the middle of the isolation tube, and the negative pressure hole is provided in the middle of the isolation plate.

5. A blood collector as claimed in claim 4, characterized in that: The connecting pipe, the suction liquid storage barrel and the isolation pipe are all transparent, and a scale mark is arranged on the outer side of the suction liquid storage barrel.

6. A blood collector as claimed in claim 1, characterized in that: The front outer diameter of the first rubber plug head gradually increases from front to back, and the front outer diameter is smaller than the inner diameter of the negative pressure hole, and the rear outer diameter is larger than the inner diameter of the negative pressure hole. The middle length of the first rubber plug head matches the length of the negative pressure hole and the outer diameter matches the inner diameter of the negative pressure hole. The rear outer diameter of the first rubber plug head is larger than the front rear outer diameter of the calibration head.

7. A blood collector as claimed in claim 1, characterized in that: It also includes a disinfection component, which includes a storage cylinder fixed on the handheld frame and arranged below the negative pressure suction component, a plurality of disinfection cotton blocks arranged side by side in the storage cylinder, a push rod that slides with the inner wall of the storage cylinder and extends out from the rear side of the storage cylinder to push the cotton balls forward, and a second rubber plug head for blocking the front end of the storage cylinder.

8. A blood collector as claimed in claim 7, characterized in that: The disinfection assembly also includes a connecting ring fixed at the front end of the storage cylinder and arranged concentrically with the storage cylinder, the inner diameter of the connecting ring is greater than or equal to the inner diameter of the storage cylinder, the rear outer diameter of the second rubber plug head matches the inner diameter of the connecting ring, and the front outer diameter of the second rubber plug head is the same as the outer diameter of the ring.

9. A blood collector as claimed in claim 7, characterized in that: The push rod includes a piston block located in the storage cylinder and connected to the inner wall of the storage cylinder for forward and backward sliding, and a rod body fixed to the piston block and extending out of the rear side of the storage cylinder. The outer diameter of the rod body is smaller than the outer diameter of the piston block and is concentrically arranged with the piston block.

10. A blood collector as claimed in claim 9, characterized in that: The disinfection assembly also includes two semicircular rings, which are used to combine into a guide ring whose inner diameter matches the outer diameter of the rod and whose outer diameter is larger than the inner diameter of the storage tube. The semicircular ring is detachably connected to the handheld frame.

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