CN213488844U - Anti-pollution blood collection system for clinical examination - Google Patents
Anti-pollution blood collection system for clinical examination Download PDFInfo
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- CN213488844U CN213488844U CN202022131532.2U CN202022131532U CN213488844U CN 213488844 U CN213488844 U CN 213488844U CN 202022131532 U CN202022131532 U CN 202022131532U CN 213488844 U CN213488844 U CN 213488844U
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- blood
- blood storage
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- piston
- pull rod
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- 210000004369 Blood Anatomy 0.000 title claims abstract description 89
- 239000008280 blood Substances 0.000 title claims abstract description 89
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000903 blocking Effects 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000007689 inspection Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 101700078171 KNTC1 Proteins 0.000 description 8
- 210000004204 Blood Vessels Anatomy 0.000 description 4
- 238000010241 blood sampling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model discloses a blood collecting device for anti-pollution clinical examination, which comprises a through blood storage tube, wherein the blood storage tube is in sliding fit with a piston made of medical silica gel along a shaft, and the piston is in threaded connection with a push-pull rod; a plugging cap is fixed on the port of the blood storage tube close to the push-pull rod; a pressure spring is arranged between the plugging cap and the piston; a closed body is formed on one side of the blood storage tube, which is far away from the push-pull rod, a needle head is sleeved on the closed body, and a closed blood storage cavity is formed by the piston, the hollow cavity and the closed body; the closing body is provided with a rotary valve, and a cover cap is detachably connected to the closing body. The blood collection device not only has the function of blood collection, but also can store blood and reduce the operation of the intermediate process under the condition of no external vessel such as a dropper and the like, so that the blood collection and the inspection are realized by a blood storage vessel, the external pollution is avoided, and the blood collection and the inspection are more reliable.
Description
Technical Field
The utility model belongs to the technical field of medical blood collection apparatus, concretely relates to anti-pollution blood collection system for clinical examination.
Background
At present, blood collection and inspection generally adopts a disposable blood collector such as an injection needle tube to extract blood, and then injects the blood into a test tube for storage; when blood is analyzed and tested, blood is drawn out from the test tube by using a dropper and the like. In the blood collection and inspection, the injection needle tube, the dropper and the test tube are respectively separated, so that the blood is inevitably exposed in the air in the collection and inspection process, for example, the needle head is exposed in the air and polluted, the test tube cover needs to be opened when the dropper sucks blood, and the probability of the pollution of the blood in the collection and inspection process is increased. Once the blood is contaminated, the resulting consequences are serious, such as misdiagnosis of the patient. Therefore, it is necessary to propose a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blood collection system for anti-pollution clinical examination to solve the problem in the background art.
The technical scheme of the utility model as follows: a blood collection device for anti-pollution clinical examination comprises a through blood storage tube, wherein the blood storage tube is provided with a cylindrical hollow cavity along the axial direction, the hollow cavity is matched with a piston made of medical silica gel in a sliding mode along the axial direction, the piston is connected with a push-pull rod in a threaded mode, and the push-pull rod extends to the outside of the blood storage tube; a plugging cap is fixed on the end, close to the push-pull rod, of the blood storage tube, and the push-pull rod penetrates through the plugging cap and is in sliding fit with the plugging cap; a pressure spring is arranged between the plugging cap and the piston and sleeved on the push-pull rod, one end of the pressure spring is abutted against the plugging cap, and the other end of the pressure spring is abutted against the piston; a closed body is formed on one side, away from the push-pull rod, of the blood storage tube, a needle head is sleeved on the closed body, a closed blood storage cavity is formed by the piston, the hollow cavity and the closed body, and the needle head is communicated with the blood storage cavity; the closed body is provided with a rotary valve, and the rotary valve is used for controlling the needle head to be communicated or not communicated with the blood storage cavity; a cap is removably attached to the closure body, with the cap isolating the needle.
Further: the rotary valve comprises a knob, a rotating rod and a cylindrical silica gel blocking block which are fixedly connected in sequence, a cylindrical connecting channel is arranged in the blocking body, and the needle head is communicated with the blood storage cavity through the connecting channel; the knob is located outside the closing body, the rotating rod is connected with the closing body in a rotating mode, the silica gel blocking block is located in the connecting channel, and the radius of the silica gel blocking block is 1mm-3mm larger than that of the connecting channel.
Further: the syringe needle includes connector and stainless steel needle bar, the blood passageway has been seted up to the connector inside, the stainless steel needle bar with the connector is pegged graft fixedly and is made the stainless steel needle bar can be dismantled on the connector.
Has the advantages that: this scheme provides an anti-pollution blood collection system for clinical examination, the device is including storing up blood vessel and syringe needle, carry out improved design through the structure to storing up the blood vessel, make the function that stores up the blood vessel not only has the blood sampling, but also can save blood and under the cooperation of no external household utensils such as burette, can outwards release the blood of storage as required, reduce the operation of middle process, make blood sampling and inspection realize by storing up the blood vessel, avoid external pollution, make blood collection and inspection more reliable.
Drawings
FIG. 1 is a schematic view of the overall structure of the blood collection device of the present invention;
FIG. 2 is a schematic view of the inside of the mounting structure of the blood storage tube and the needle head of the present invention;
fig. 3 is a schematic view of the installation structure of the middle rotary valve of the present invention.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a blood collection system for anti-pollution clinical examination, including the blood storage tube 3 that leads to in, blood storage tube 3 has one along the axial and is columniform cavity 3a, cavity 3a has a piston 8 of being made by medical silica gel along axial sliding fit. The piston 8 can slide up and down along the central axis of the hollow chamber 3 a. The piston 8 is connected with a push-pull rod 1 through threads, and the push-pull rod 1 extends to the outside of the blood storage tube 3. The push rod is used to operate the piston 8. It should be noted that: the push rod is detachable, and after blood is stored in the blood storage tube 3, the whole size of the blood storage tube 3 is shortened, and the blood storage tube 3 is stored conveniently, so that the push rod needs to be detached at the moment.
A plugging cap 2 is fixed on the end, close to the push-pull rod 1, of the blood storage tube 3, and the push-pull rod 1 penetrates through the plugging cap 2 and is in sliding fit with the plugging cap 2; a pressure spring 6 is arranged between the plugging cap 2 and the piston 8, the pressure spring 6 is sleeved on the push-pull rod 1, one end of the pressure spring 6 is abutted against the plugging cap 2, and the other end of the pressure spring 6 is abutted against the piston 8.
In the structure, the plugging cap 2 provides a supporting point for the pressure spring 6 on one hand, and performs secondary dust sealing on the piston 8 on the other hand, so that the piston 8 and blood are further ensured not to be polluted by the outside.
A closing body 31 is formed on one side of the blood storage tube 3 far away from the push-pull rod 1, a needle 4 is sleeved on the closing body 31, a closed blood storage cavity 3b is formed by the piston 8, the hollow cavity 3a and the closing body 31, and the needle 4 is communicated with the blood storage cavity 3 b; the closing body 31 is provided with a rotary valve 7, and the needle 4 is controlled to be communicated or not communicated with the blood storage cavity 3b by the rotary valve 7; a cap 5 is detachably connected to the closure body 31, and the cap 5 is used to isolate the needle 4.
In the unused state, a blood storage tube 3 is correspondingly connected with a needle 4, and the needle 4 is wrapped and sealed by a cap 5. When the blood storage cap is used specifically, the cap 5 is taken down, the rotary valve 7 is opened, the needle 4 pierces the human body, the push-pull rod 1 is pulled outwards to move the piston 8, and blood enters the blood storage cavity 3b until the blood storage tube 3 is full of blood. The push-pull rod 1 is then removed, the rotary valve 7 is closed, and the cap 5 is closed. The blood reservoir 3 can now be stored. When the blood in the blood storage tube 3 needs to be used, the rotary valve 7 is only required to be opened, the piston 8 is pushed by the pressure spring 6, and the blood in the blood storage tube 3 is pushed out of the blood storage cavity 3 b.
As shown in fig. 3, the rotary valve 7 in this embodiment includes a knob 73, a rotating rod 72 and a cylindrical silica gel blocking block 71 which are fixedly connected in sequence, a cylindrical connecting channel is provided in the blocking body 31, and the needle 4 is communicated with the blood storage cavity 3b through the connecting channel; the knob 73 is positioned outside the closing body 31, the rotating rod 72 is rotatably connected with the closing body 31, the silica gel blocking block 71 is positioned in the connecting channel, and the radius of the silica gel blocking block 71 is 1mm-3mm larger than that of the connecting channel.
The rotary valve 7 has simple structure, can be opened and closed only by rotating the rotary valve 7 in the whole direction and in the reverse direction, and is convenient to operate.
Syringe needle 4 in this scheme has also adopted the detachable structure to in this way save syringe needle 4, reduce syringe needle 4's overall structure size. The needle 4 comprises a connector 41 and a stainless steel needle rod 42, a blood channel is arranged in the connector 41, and the stainless steel needle rod 42 is fixedly spliced with the connector 41 so that the stainless steel needle rod 42 can be detached from the connector 41.
It should be noted that: whether the needle 4 is a detachable structure or not has no influence on the normal use of the blood storage tube 3, and the overall size of the needle 4 and the blood storage tube 3 is shortened through the structural design so as to reduce the size of the outer package and the size in the length direction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides an anti-pollution blood collection system for clinical examination which characterized in that: the blood storage tube comprises a hollow blood storage tube (3) which is communicated with the middle, wherein the blood storage tube (3) is axially provided with a cylindrical hollow cavity (3a), the hollow cavity (3a) is axially matched with a piston (8) made of medical silica gel in a sliding manner, the piston (8) is in threaded connection with a push-pull rod (1), and the push-pull rod (1) extends to the outside of the blood storage tube (3); a plugging cap (2) is fixed on the port of the blood storage tube (3) close to the push-pull rod (1), and the push-pull rod (1) penetrates through the plugging cap (2) and is in sliding fit with the plugging cap (2); a pressure spring (6) is arranged between the plugging cap (2) and the piston (8), the pressure spring (6) is sleeved on the push-pull rod (1), one end of the pressure spring (6) is abutted against the plugging cap (2), and the other end of the pressure spring (6) is abutted against the piston (8); a closed body (31) is formed on one side, away from the push-pull rod (1), of the blood storage tube (3), a needle (4) is sleeved on the closed body (31), a closed blood storage cavity (3b) is formed by the piston (8), the hollow cavity (3a) and the closed body (31), and the needle (4) is communicated with the blood storage cavity (3 b); the closing body (31) is provided with a rotary valve (7), and the needle head (4) is controlled to be communicated or not communicated with the blood storage cavity (3b) by using the rotary valve (7); a cap (5) is detachably connected to the closing body (31), and the needle (4) is isolated by the cap (5).
2. The contamination-preventive blood collection device for clinical examination according to claim 1, wherein: the rotary valve (7) comprises a knob (73), a rotating rod (72) and a cylindrical silica gel blocking block (71) which are fixedly connected in sequence, a cylindrical connecting channel is arranged in the blocking body (31), and the needle (4) is communicated with the blood storage cavity (3b) through the connecting channel; the knob (73) is positioned outside the closing body (31), the rotating rod (72) is connected with the closing body (31) in a rotating mode, the silica gel blocking block (71) is positioned in the connecting channel, and the radius of the silica gel blocking block (71) is 1mm-3mm larger than that of the connecting channel.
3. The contamination-preventive blood collection device for clinical examination according to claim 1, wherein: syringe needle (4) are including connector (41) and stainless steel needle bar (42), the blood passageway has been seted up to connector (41) inside, stainless steel needle bar (42) with connector (41) are pegged graft fixedly and are made stainless steel needle bar (42) can be dismantled by connector (41) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022131532.2U CN213488844U (en) | 2020-09-24 | 2020-09-24 | Anti-pollution blood collection system for clinical examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022131532.2U CN213488844U (en) | 2020-09-24 | 2020-09-24 | Anti-pollution blood collection system for clinical examination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213488844U true CN213488844U (en) | 2021-06-22 |
Family
ID=76450016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022131532.2U Active CN213488844U (en) | 2020-09-24 | 2020-09-24 | Anti-pollution blood collection system for clinical examination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213488844U (en) |
-
2020
- 2020-09-24 CN CN202022131532.2U patent/CN213488844U/en active Active
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