CN211022708U - Blood extraction element is used in immunological detection - Google Patents
Blood extraction element is used in immunological detection Download PDFInfo
- Publication number
- CN211022708U CN211022708U CN201921974381.8U CN201921974381U CN211022708U CN 211022708 U CN211022708 U CN 211022708U CN 201921974381 U CN201921974381 U CN 201921974381U CN 211022708 U CN211022708 U CN 211022708U
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- Prior art keywords
- blood
- pipe
- connecting pipe
- injector
- anticoagulant
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- Expired - Fee Related
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- 210000004369 blood Anatomy 0.000 title claims abstract description 67
- 239000008280 blood Substances 0.000 title claims abstract description 63
- 238000000605 extraction Methods 0.000 title claims abstract description 24
- 230000001900 immune effect Effects 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 title claims abstract description 6
- 239000003146 anticoagulant agent Substances 0.000 claims abstract description 36
- 229940127219 anticoagulant drug Drugs 0.000 claims abstract description 36
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 239000000701 coagulant Substances 0.000 description 4
- 238000012864 cross contamination Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to the field of medical equipment, aim at provides be convenient for pour into the anticoagulant into, and anticoagulant and blood misce bene's blood extraction element into. The technical scheme is as follows: a blood extraction device for immunological detection comprises a syringe, wherein a three-way pipe is arranged at an injection port of the syringe, a first end of the three-way pipe is connected with a blood drawing branch, a second end of the three-way pipe is connected with a bypass valve, and an input end of the bypass valve is connected with an anticoagulant drawing branch; the third end of the three-way pipe is connected with a section of mixing pipe, and one end of the mixing pipe, which is far away from the three-way pipe, is communicated with the injector.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to blood extraction element is used in immunology detection.
Background
In the field of medical immunology, medical staff needs to extract blood from a patient when examining or studying the blood. At present, most of blood sample collection methods adopted in various hospitals draw venous blood of patients by using syringes, and then inject the venous blood into glass test tubes for storage, routine examination or pathological research. In this manner, cross-contamination by pathogens is likely to occur during transfer and storage, and for this reason, one skilled in the art would store the withdrawn blood in the syringe barrel by using the syringe directly as a storage device. Typically, to slow the rate of blood clotting in the syringe, an anticoagulant is added to the syringe to increase the shelf life of the blood. In the prior art, medical staff draw a certain amount of anticoagulant into a syringe before or after blood drawing; however, this approach requires needle replacement either before or after blood withdrawal in order to avoid cross-contamination. Thus increasing the complexity of the blood drawing operation and the working intensity of the medical staff; and after the anticoagulant is injected, medical staff is required to shake the syringe to mix the anticoagulant with the blood, but the operation is not convenient, the working strength is increased, and the blood and the anticoagulant are not easy to mix uniformly by shaking.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blood extraction element convenient to pour into the anticoagulant into, and anticoagulant and blood misce bene into.
In order to realize the purpose of the utility model, the technical proposal adopted by the utility model is that the blood extraction device for immunological detection comprises a syringe, wherein, the injection opening of the syringe is provided with a three-way pipe, the first end of the three-way pipe is connected with a blood drawing branch, the second end of the three-way pipe is connected with a bypass valve, and the input end of the bypass valve is connected with an anticoagulant extraction branch; the third end of the three-way pipe is connected with a section of mixing pipe, and one end of the mixing pipe, which is far away from the three-way pipe, is communicated with the injector.
Preferably, the mixing tube is a tube provided with a helical inner cavity.
Preferably, the mixing pipe comprises a first connecting pipe and a second connecting pipe which are connected to the third end of the three-way pipe, and one ends of the first connecting pipe and the second connecting pipe, which are far away from the three-way pipe, are both communicated with the injector; the first connecting pipe and the second connecting pipe are both spiral, and are wound in a staggered mode and are provided with a plurality of through positions.
Preferably, the anticoagulant extraction branch comprises a rubber tube connected with the bypass valve, one end of the rubber tube, which is far away from the bypass valve, is connected with a medicine extraction needle, and the rubber tube is provided with an adjusting piece for adjusting the flow rate of the anticoagulant.
Preferably, the regulating member is an infusion tube regulator.
Preferably, the bypass valve is a check valve.
Preferably, the syringe includes the push rod, the push rod includes pole portion and head, the head is installed in the piston, one side that the head is close to pole portion is connected with the sleeve pipe that the inner wall is the screw thread, the one end that the pole portion is close to the head is equipped with one section outer wall and is the cylinder of screw thread, the cylinder is inserted and is established and constitute screw-thread fit in the sleeve pipe.
Preferably, the outer wall of the syringe barrel of the injector is provided with scales.
Preferably, the syringe is an automatic blood drawing syringe.
The beneficial effects of the utility model are concentrated and are embodied in: the utility model discloses a blood extraction device need not to shift the blood of extraction, usable syringe direct storage. The anticoagulant is conveniently added into the extracted blood, so that the storage time of the blood is prolonged; has the advantages of simple structure, convenient operation and strong practicability. Specifically, when in use, the push rod of the syringe is pulled to form negative pressure in the syringe, and the blood drawing branch draws the drawn blood into the syringe; meanwhile, the blood extraction branch is connected with a three-way pipe, and the three-way pipe is connected with an extraction branch of anticoagulant; due to the existence of the bypass valve, when negative pressure exists in the injector, the bypass valve is opened, and simultaneously the extracted anticoagulant and the extracted blood are mixed and then enter the injector; and the third end of the three-way pipe is connected with a mixing pipe, and the mixing pipe can uniformly mix the blood and the anticoagulant. The structure is simple, and the working strength of medical staff is reduced.
Drawings
FIG. 1 is a schematic view of the whole structure of the blood extraction device of the present invention;
FIG. 2 is an enlarged view of portion A of the structure shown in FIG. 1;
FIG. 3 is an enlarged view of portion B of the structure shown in FIG. 1;
fig. 4 is a structural view of another embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a blood extraction device for immunological tests comprises an injector, the injector comprises a syringe 15, a push rod and a piston 11; the injection port of the injector is provided with a three-way pipe 1, the first end of the three-way pipe 1 is connected with a blood drawing branch, the blood drawing branch comprises a blood drawing tube 18 and a blood drawing needle 19, and the blood drawing needle 19 is connected to the blood drawing tube 18; a second end of the three-way pipe 1 is connected with a bypass valve 2, in the embodiment, the bypass valve 2 is a check valve which can prevent the anticoagulant from flowing back; the input end of the bypass valve 2 is connected with an anticoagulant extraction branch; when negative pressure is formed in the injector, the bypass valve 2 can be opened to start the extraction of anticoagulant, so that the anticoagulant can be conveniently extracted and mixed with blood.
Further, in order to uniformly mix the extracted blood with the anticoagulant, as shown in fig. 3, a third end of the three-way pipe 1 is connected with a section of mixing pipe, and one end of the mixing pipe, which is far away from the three-way pipe 1, is communicated with a syringe; in this embodiment, the mixing tube is a tube provided with a spiral inner cavity 5, and when blood and anticoagulant enter the mixing tube, the spiral inner cavity 5 increases the flow stroke of the blood and anticoagulant, so that the blood and anticoagulant are uniformly mixed and flow into the syringe.
Specifically, the anticoagulant extraction branch comprises a rubber tube 6 communicated with the bypass valve 2, one end, far away from the bypass valve 2, of the rubber tube 6 is connected with a medicine extraction needle 7, and the medicine extraction needle 7 is inserted into a medicine bottle 17 filled with anticoagulant to extract the anticoagulant; in the using process, the mixing ratio of the blood and the anticoagulant is usually required to be changed, so the rubber tube 6 is provided with the adjusting piece 8 for adjusting the flow rate of the anticoagulant, in this embodiment, the adjusting piece 8 preferably uses a transfusion tube adjuster, and other flow adjusting devices commonly used in the field, such as an adjusting valve and the like, can also be used, the rubber tube 6 is arranged in the transfusion tube adjuster in a penetrating way, the opening degree of the rubber tube 6 is changed by sliding the roller of the adjuster, and then the change of the mixing dosage of the anticoagulant is realized.
Further, when the syringe is directly used as a blood storage device, since a part of the rod body of the push rod is located outside the syringe barrel 15, a large storage space is occupied, and if the push rod is touched, the blood sample stored in the syringe barrel 15 leaks out. Therefore, the push rod comprises a rod part 9 and a head part 10, the head part 10 is installed in a piston 11, one side, close to the rod part 9, of the head part 10 is connected with a sleeve 12 with a threaded inner wall, one end, close to the head part 10, of the rod part 9 is provided with a column 13 with a threaded outer wall, and the column 13 is inserted into the sleeve 12 to form threaded fit. When in use, the cylinder 13 on the push rod can be directly rotated into the threaded sleeve 12 due to the large friction force between the piston 11 and the injection cylinder 15; after extraction, the push rod is screwed out of the injection tube 15, so that the storage is convenient, the storage space is saved, and the structure is simple and easy to process; blood is prevented from leaking out of the syringe barrel 15.
Furthermore, in order to facilitate the observation of the amount of blood drawn, the outer wall of the syringe barrel 15 of the syringe is provided with a scale 14.
Further, in order to reduce the workload of medical staff, the injector is an automatic blood drawing injector which can be set as the following structure: a spring 16 is sleeved on the rod part 9 of the push rod positioned outside the injection tube 15, as shown in fig. 4, one end of the spring 16 abuts against the end surface of the injection tube 15, the other end abuts against the grip of the push rod, when the syringe is not used, the spring 16 is in a natural state, and the piston 11 is close to the right side; after the spring 16 is pressed downwards, the blood drawing branch is connected, and automatic drawing is completed in the process of resetting the spring 16; in this embodiment, the rod portion 9 of the push rod may be screwed to the end surface of the syringe 15, and the push rod may be rotated to generate a negative pressure in the syringe 15, thereby completing the automatic withdrawal.
In another embodiment of the present invention, as shown in fig. 4, the mixing tube includes a first connecting tube 3 and a second connecting tube 4 connected to a third end of the three-way tube 1, and ends of the first connecting tube 3 and the second connecting tube 4 away from the three-way tube 1 are both communicated with the injector; the first connecting pipe 3 and the second connecting pipe 4 are both in a spiral shape, the spiral structure can increase the flow stroke of blood and anticoagulant, the first connecting pipe 3 and the second connecting pipe 4 are wound in a staggered mode, a plurality of positions are arranged on the first connecting pipe 3 and the second connecting pipe 4 and penetrate through each other, and the inner diameters of the first connecting pipe 3 and the second connecting pipe 4 are the same; after the first connecting pipe 3 and the second connecting pipe 4 are communicated with each other, the liquid in the first connecting pipe 3 and the liquid in the second connecting pipe 4 can flow in a staggered manner, so that the blood and the anticoagulant can be fully mixed, and the storage time of the blood is prolonged; and one ends of the first connecting pipe 3 and the second connecting pipe 4 which are far away from the three-way pipe 1 are both communicated with the injector.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.
Claims (9)
1. A blood extraction device for immunological detection, comprising a syringe, characterized in that: a three-way pipe (1) is arranged at an injection port of the injector, a first end of the three-way pipe (1) is connected with a blood drawing branch, a second end of the three-way pipe (1) is connected with a bypass valve (2), and an input end of the bypass valve (2) is connected with an anticoagulant drawing branch; the third end of the three-way pipe (1) is connected with a section of mixing pipe, and one end of the mixing pipe, which is far away from the three-way pipe (1), is communicated with the injector.
2. The blood collection device for immunological tests according to claim 1, wherein: the mixing tube is a tube provided with a spiral inner cavity (5).
3. The blood collection device for immunological tests according to claim 1, wherein: the mixing pipe comprises a first connecting pipe (3) and a second connecting pipe (4) which are connected to the third end of the three-way pipe (1), and one ends of the first connecting pipe (3) and the second connecting pipe (4) far away from the three-way pipe (1) are both communicated with the injector; the first connecting pipe (3) and the second connecting pipe (4) are both spiral, the first connecting pipe (3) and the second connecting pipe (4) are wound in a staggered mode, and a plurality of positions are arranged on the first connecting pipe (3) and the second connecting pipe (4) and penetrate through each other.
4. The blood collection device for immunological tests according to claim 1, wherein: anticoagulant extraction branch road includes rubber tube (6) that links to each other with bypass valve (2), the one end that bypass valve (2) were kept away from in rubber tube (6) is connected with and takes out medicine needle (7), be equipped with regulating part (8) of adjusting the anticoagulant flow on rubber tube (6).
5. The blood collection device for immunological tests according to claim 4, wherein: the adjusting piece (8) is an infusion tube adjuster.
6. The blood collection device for immunological tests according to claim 4, wherein: the bypass valve (2) is a check valve.
7. The blood collection device for immunological tests according to claim 1, wherein: the injector comprises a push rod, the push rod comprises a rod part (9) and a head part (10), the head part (10) is installed in a piston (11), one side, close to the rod part (9), of the head part (10) is connected with a sleeve (12) with a threaded inner wall, one end, close to the head part (10), of the rod part (9) is provided with a cylinder (13) with a threaded outer wall, and the cylinder (13) is inserted into the sleeve (12) to form threaded fit.
8. The blood collection device for immunological tests according to claim 1, wherein: scales (14) are arranged on the outer wall of an injection cylinder (15) of the injector.
9. The blood collection device for immunological tests according to claim 1, wherein: the injector is an automatic blood drawing injector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921974381.8U CN211022708U (en) | 2019-11-14 | 2019-11-14 | Blood extraction element is used in immunological detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921974381.8U CN211022708U (en) | 2019-11-14 | 2019-11-14 | Blood extraction element is used in immunological detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211022708U true CN211022708U (en) | 2020-07-17 |
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ID=71561191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921974381.8U Expired - Fee Related CN211022708U (en) | 2019-11-14 | 2019-11-14 | Blood extraction element is used in immunological detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211022708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117797382A (en) * | 2024-01-26 | 2024-04-02 | 湖南省中医药研究院 | Cardiovascular intervention treatment auxiliary device |
-
2019
- 2019-11-14 CN CN201921974381.8U patent/CN211022708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117797382A (en) * | 2024-01-26 | 2024-04-02 | 湖南省中医药研究院 | Cardiovascular intervention treatment auxiliary device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 |