CN222032397U - A venous blood collection needle - Google Patents
A venous blood collection needle Download PDFInfo
- Publication number
- CN222032397U CN222032397U CN202420400633.0U CN202420400633U CN222032397U CN 222032397 U CN222032397 U CN 222032397U CN 202420400633 U CN202420400633 U CN 202420400633U CN 222032397 U CN222032397 U CN 222032397U
- Authority
- CN
- China
- Prior art keywords
- needle
- blood collection
- hollow needle
- needle handle
- protective sleeve
- Prior art date
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Links
- 239000008280 blood Substances 0.000 title claims abstract description 53
- 210000004369 blood Anatomy 0.000 title claims abstract description 53
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 241001411320 Eriogonum inflatum Species 0.000 claims description 12
- 239000004816 latex Substances 0.000 claims description 8
- 229920000126 latex Polymers 0.000 claims description 8
- 210000003462 vein Anatomy 0.000 description 39
- 230000002633 protecting effect Effects 0.000 description 9
- 238000010241 blood sampling Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000012510 hollow fiber Substances 0.000 description 3
- 238000001990 intravenous administration Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 2
- 238000001631 haemodialysis Methods 0.000 description 2
- 230000000322 hemodialysis Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型属于医疗用具技术领域，尤其为一种静脉采血针，包括空心针柄、软连接管、止流夹和采血头，所述空心针柄的前端上部固定连接有限位卡块，所述空心针柄的前端固定连接有静脉针头，所述空心针柄的后端固定连接有软连接管，所述软连接管的外部四周套合连接有止流夹，所述软连接管的后端固定连接有采血头；所述空心针柄的外部四周套合连接有保护套管，所述保护套管的上端开设有滑槽，本实用新型在空心针柄外设有保护套管，在使用后，可将保护套管推至空心针柄的前端，使静脉针头位于保护套管中，可避免使用后的静脉针头裸露在外，可防止在后续静脉采血针的回收收取时，裸露在外的静脉针头刺伤医护人员的身体。
The utility model belongs to the technical field of medical appliances, in particular to a venous blood collection needle, comprising a hollow needle handle, a soft connecting tube, a flow-stopping clamp and a blood collection head, wherein the upper front end of the hollow needle handle is fixedly connected to a limiting block, the front end of the hollow needle handle is fixedly connected to a venous needle, the rear end of the hollow needle handle is fixedly connected to a soft connecting tube, the outer periphery of the soft connecting tube is sleeved with the flow-stopping clamp, and the rear end of the soft connecting tube is fixedly connected to a blood collection head; the outer periphery of the hollow needle handle is sleeved with a protective sleeve, and a sliding groove is provided at the upper end of the protective sleeve. The utility model is provided with a protective sleeve outside the hollow needle handle. After use, the protective sleeve can be pushed to the front end of the hollow needle handle so that the venous needle is located in the protective sleeve, which can avoid the venous needle after use from being exposed to the outside, and can prevent the exposed venous needle from stabbing the body of medical staff when the venous blood collection needle is subsequently recovered and collected.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a venous blood taking needle.
Background
The hemodialysis utilizes the principle that solute flows from one side with high concentration to one side with low concentration, and two solutions of blood and dialysate are simultaneously introduced into a dialyzer with a hollow fiber semipermeable membrane, so that the blood is positioned on one side of the hollow fiber semipermeable membrane, the dialysate is positioned on the other side of the hollow fiber semipermeable membrane, and the solutions on two sides of the membrane remove medium and small molecular toxins in human blood through dispersion and osmosis, so that the correct collection of blood samples is critical for improving the accuracy of test results for patients in the hemodialysis.
When realizing above-mentioned blood sampling operation, need often use auxiliary blood sampling device such as vein blood taking needle, current vein blood taking needle mainly comprises blood taking head (with bottle plug pjncture needle and emulsion protective sheath), flexible connection pipe, flow stopping clamp, vein syringe needle (with needle handle and needle wing) etc. and at present when taking blood through current vein blood taking needle, expose outside at vein syringe needle after extracting vein syringe needle, when retrieving of follow-up vein blood taking needle, expose outside vein syringe needle and stab medical personnel's health easily, there is certain hidden danger.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model provides the vein blood taking needle, the protective sleeve is arranged outside the hollow needle handle, after the vein blood taking needle is used, the protective sleeve can be pushed to the front end of the hollow needle handle, so that the vein needle is positioned in the protective sleeve, the vein needle after the use can be prevented from being exposed outside, the exposed vein needle can be prevented from stabbing the body of medical staff when the vein blood taking needle is recovered and collected later, the structure design is ingenious, the operation is simple and convenient, and the vein blood taking needle is convenient to use.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the venous blood taking needle comprises a hollow needle handle, a flexible connecting pipe, a flow stopping clamp and a blood taking head, wherein a limiting clamping block is fixedly connected to the upper part of the front end of the hollow needle handle, a venous needle is fixedly connected to the front end of the hollow needle handle, the flexible connecting pipe is fixedly connected to the rear end of the hollow needle handle, the flow stopping clamp is sleeved on the periphery of the outer part of the flexible connecting pipe, and the blood taking head is fixedly connected to the rear end of the flexible connecting pipe;
The outside of hollow needle handle is around the cover and is connected with the protective sleeve, the spout has been seted up to the upper end of protective sleeve, preceding spacing draw-in groove has been seted up on the front end right side of spout, back spacing draw-in groove has been seted up in the rear end left side of spout.
As an optimized technical scheme of the venous blood taking needle, the rear end of the blood taking head is fixedly connected with the bottle stopper puncture needle head, the rear end of the blood taking head is fixedly connected with the latex protection sleeve, and the latex protection sleeve is positioned around the outer part of the bottle stopper puncture needle head.
As a preferable technical scheme of the venous blood taking needle, the hollow needle handle, the flexible connecting tube and the blood taking head are communicated in sequence.
As a preferable technical scheme of the intravenous blood taking needle, the outer surface of the protective sleeve is integrally formed with a plurality of anti-slip protrusions I.
As a preferable technical scheme of the intravenous blood taking needle, the outer surface of the rear end of the hollow needle handle is integrally formed with a plurality of anti-slip protrusions II.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the protective sleeve is arranged outside the hollow needle handle, when the protective sleeve is used, the protective sleeve can be retracted to the rear end of the hollow needle handle and limited by the sliding clamping of the limiting clamping block, the sliding groove and the front limiting clamping groove, so that the vein needle is exposed out for puncture of the vein needle, and after the protective sleeve is used, the protective sleeve can be pushed to the front end of the hollow needle handle by the sliding clamping of the limiting clamping block, the sliding groove and the rear limiting clamping groove, so that the vein needle is positioned in the protective sleeve, the vein needle after the use is prevented from being exposed out, and the vein needle exposed out can be prevented from stabbing the body of medical staff when the subsequent vein blood taking needle is recovered.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a connection structure of a protective sleeve according to the present utility model;
FIG. 3 is a schematic top view of the protective sleeve connection of the present utility model;
FIG. 4 is a schematic view showing a partial cross-sectional structure of a blood collection head according to the present utility model.
In the figure: 1. a hollow needle handle; 2. a limit clamping block; 3. a venous needle; 4. a protective sleeve; 5. the anti-slip boss I; 6. a chute; 7. a front limit clamping groove; 8. a rear limit clamping groove; 9. a second anti-slip boss; 10. a flexible connection pipe; 11. a flow stop clip; 12. a blood collection head; 13. a bottle stopper puncture needle; 14. emulsion protective sheath.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a vein blood taking needle, including hollow needle handle 1, flexible connection pipe 10, flow stopping clamp 11 and blood taking head 12, the front end upper portion fixedly connected with spacing fixture block 2 of hollow needle handle 1, the front end fixedly connected with vein syringe needle 3 of hollow needle handle 1, the rear end surface integrated into one piece of hollow needle handle 1 has a plurality of anti-skidding two 9, the rear end fixedly connected with flexible connection pipe 10 of hollow needle handle 1, the outside of flexible connection pipe 10 is overlapped and is connected with flow stopping clamp 11 all around, the rear end fixedly connected with blood taking head 12 of flexible connection pipe 10, the rear end fixedly connected with bottle plug pjncture needle 13 of blood taking head 12, the rear end fixedly connected with latex protective sheath 14 and latex protective sheath 14 is located bottle plug pjncture needle 13's outside all around, hollow needle handle 1, flexible connection pipe 10, blood taking head 12 communicates with each other in proper order, wherein, through the design of above-mentioned structure, the concrete use of above-mentioned structure has been carried out in the use flow and theory of operation part of this embodiment, and the anti-skidding of taking needle handle 1 is convenient for the rotation through the design of hollow needle handle 1 rear end two.
Referring to fig. 1,2 and 3, further, the outer circumference of the venous needle 3 is sleeved with a protecting sleeve 4, a plurality of anti-slip protrusions 5 are integrally formed on the outer surface of the protecting sleeve 4, a sliding groove 6 is formed at the upper end of the protecting sleeve 4, a front limit clamping groove 7 is formed on the right side of the front end of the sliding groove 6, a rear limit clamping groove 8 is formed on the left side of the rear end of the sliding groove 6, wherein the protecting sleeve 4 can slide back and forth and rotate left and right relative to the venous needle 3, and the anti-slip protrusions 5 on the outer surface of the protecting sleeve 4 are used for anti-slip pinching and push-pull rotation operations of the protecting sleeve 4, and a limit clamping block 2 on the venous needle 3 can slide back and forth relative to the sliding groove 6 on the protecting sleeve 4 further through the front limit clamping groove 7 or the rear limit clamping groove 8, so that the protecting sleeve 4 falls from the venous needle 3 and loses the protecting effect of the venous needle 3.
In this embodiment, the protective sleeve 4 is arranged outside the hollow needle handle 1, when in use, the protective sleeve 4 can be retracted to the rear end of the hollow needle handle 1 and the protective sleeve 4 is limited by the sliding clamping of the limiting clamping block 2, the sliding groove 6 and the front limiting clamping groove 7, so that the vein needle 3 is exposed to the outside for puncturing the vein needle 3, and after use, the protective sleeve 4 can be pushed to the front end of the hollow needle handle 1 by the sliding clamping of the limiting clamping block 2, the sliding groove 6 and the rear limiting clamping groove 8, so that the vein needle 3 is positioned in the protective sleeve 4, the vein needle 3 exposed to the outside after use can be prevented from puncturing the body of medical staff when the vein needle 3 exposed to the outside is recovered and collected in the follow-up vein blood collection needle, the structural design is ingenious, the operation is simple and convenient, and the use of the vein blood collection needle is convenient.
The utility model has the following application flow and working principle: when in use, the protective sleeve 4 is held by one hand, the rear end of the hollow needle handle 1 is held by the other hand, then the protective sleeve 4 is pushed backwards relative to the hollow needle handle 1 to expose the vein needle 3, in the process, the limit clamping block 2 on the hollow needle handle 1 can slide forwards relative to the chute 6 on the protective sleeve 4, then the hollow needle handle 1 is further rotated rightwards to enable the limit clamping block 2 on the hollow needle handle 1 to be clamped with the front limit clamping groove 7 at the front end of the chute 6, thus limiting and fixing the hollow needle handle 1 pushed back to the rear end of the vein needle 3, then the vein needle 3 can complete the puncture of the vein needle, the protective sleeve 4 and the partially segmented flexible connecting pipe 10 are fixed on the skin of a human body through an adhesive tape, and then when in blood sampling operation, the bottle plug puncture needle 13 on the blood sampling head 12 can be inserted into the rubber plug of the mouth of the sampling pipe, the bottle stopper puncture needle 13 needs to completely penetrate the rubber stopper, the latex protection sleeve 14 positioned outside the bottle stopper puncture needle 13 on the blood sampling head 12 can retract and retract automatically in the process of puncturing the bottle stopper puncture needle 13, so that the bottle stopper puncture needle 13 punctures the rubber stopper, then the flow stop clamp 11 is opened, blood can flow into the sampling tube automatically due to the negative pressure state inside the sampling tube, the latex protection sleeve 14 positioned outside the bottle stopper puncture needle 13 on the blood sampling head 12 can rebound and extend automatically in the process of pulling out the bottle stopper puncture needle 13, the bottle stopper puncture needle 13 is protected, the operation is carried out to complete the vein blood sampling work of a patient, the protection sleeve 4 can be held by one hand, the rear end of the hollow needle handle 1 can be held by the other hand, then the protection sleeve 4 is pushed forwards relative to the hollow needle handle 1, the vein needle 3 is positioned in the protection sleeve 4, the limiting clamping block 2 on the hollow needle handle 1 can slide backwards relative to the sliding groove 6 on the protective sleeve 4 in the process, and then the hollow needle handle 1 is further rotated leftwards, so that the limiting clamping block 2 on the hollow needle handle 1 is clamped with the rear limiting clamping groove 8 at the rear end of the sliding groove 6, the protective sleeve 4 pushed to the front end of the hollow needle handle 1 is limited and fixed, the vein needle 3 after being used can be prevented from being exposed outside, and the vein needle 3 exposed outside can be prevented from stabbing the body of medical staff when the subsequent vein blood taking needle is recovered.
In this embodiment, the contents not described in detail are common knowledge and the prior art.
Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420400633.0U CN222032397U (en) | 2024-03-03 | 2024-03-03 | A venous blood collection needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420400633.0U CN222032397U (en) | 2024-03-03 | 2024-03-03 | A venous blood collection needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222032397U true CN222032397U (en) | 2024-11-22 |
Family
ID=93514662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420400633.0U Active CN222032397U (en) | 2024-03-03 | 2024-03-03 | A venous blood collection needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222032397U (en) |
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2024
- 2024-03-03 CN CN202420400633.0U patent/CN222032397U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |