CN220158920U - Anti-reflux venous indwelling needle - Google Patents
Anti-reflux venous indwelling needle Download PDFInfo
- Publication number
- CN220158920U CN220158920U CN202321490921.1U CN202321490921U CN220158920U CN 220158920 U CN220158920 U CN 220158920U CN 202321490921 U CN202321490921 U CN 202321490921U CN 220158920 U CN220158920 U CN 220158920U
- Authority
- CN
- China
- Prior art keywords
- needle
- needle body
- venous indwelling
- reflux
- puncture
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000000151 anti-reflux effect Effects 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 58
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000741 silica gel Substances 0.000 claims abstract description 16
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 16
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 6
- 229960002897 heparin Drugs 0.000 claims description 6
- 229920000669 heparin Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 12
- 239000007924 injection Substances 0.000 abstract description 12
- 239000003814 drug Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000008280 blood Substances 0.000 abstract description 4
- 210000004369 blood Anatomy 0.000 abstract description 4
- 238000010992 reflux Methods 0.000 abstract description 2
- 238000001802 infusion Methods 0.000 description 8
- 238000001990 intravenous administration Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The utility model discloses an anti-reflux venous indwelling needle, which comprises a needle body, wherein an interface is arranged on one side of the needle body, an anti-reflux component is arranged in an inner cavity of the interface, the puncture needle component can be inserted through the needle body, the puncture needle component can be pulled out of the needle body after the puncture is finished, a needle hole through which the puncture needle component passes can be automatically sealed by a silica gel sealing plate by means of the performance of the silica gel sealing plate, leakage can be avoided, when the venous indwelling needle is used for injection and transfusion, a sealing plug on the anti-reflux component can be pushed out from a sealing seat by means of the pressure of liquid medicine during injection, at the moment, the liquid medicine can flow into the needle body for injection and transfusion, the sealing plug can be reset by means of the elasticity of a reset spring after the injection and transfusion is finished, the opening on the sealing seat is blocked by the sealing plug after the reset, the venous indwelling needle can be changed into a closed state, the occurrence of a reflux phenomenon of blood can be prevented, and the burden of medical staff can be lightened.
Description
Technical Field
The utility model relates to the technical field of indwelling needles, in particular to an anti-reflux venous indwelling needle.
Background
The indwelling needle is a medical instrument which is commonly used in hospital nursing work, has the advantages of reducing the puncture times of patients, reducing puncture pain, reducing the workload of medical staff and the like, is often used in the condition of long-time transfusion, can be placed in the patients for a long time without replacing the needle head every time, and can reduce the uncomfortable feeling of the stainless steel needle head to the patients, but the traditional venous indwelling needle is easy to have the phenomenon of blood backflow when the puncture needle is withdrawn, and the tube sealing step is too troublesome, thereby increasing the burden of medical staff.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the problems in the related art, the utility model provides an anti-reflux venous indwelling needle, which aims to overcome the technical problems in the prior art.
For this purpose, the utility model adopts the following specific technical scheme:
the utility model provides an anti-reflux venous indwelling needle, includes the needle body, needle body one side is equipped with the interface, interface inner chamber is equipped with anti-reflux subassembly, interface one end has the taper joint through hose connection, be equipped with heparin cap and taper joint protection cap on the taper joint, the fixed transparent pipe that is equipped with in needle body top, the fixed handheld handle that is equipped with of needle body outside, needle body bottom inner chamber is fixed to be equipped with the silica gel closing plate, needle body inner chamber interlude is equipped with the pjncture needle subassembly.
Preferably, the surface of the hand-held handle is provided with a protective texture.
Preferably, the puncture needle assembly comprises a plug cover, and a puncture needle is inserted into the top of the plug cover.
Preferably, the plug cover top is provided with a jack, and the puncture needle is fixed at the plug cover top through the jack in a penetrating way.
Preferably, the anti-countercurrent assembly comprises a sealing seat, a through hole is formed in the middle of the sealing seat, a T-shaped guide rod is inserted in the sealing seat in a penetrating mode, one end of the T-shaped guide rod is fixedly connected with a sealing plug, and a reset spring is sleeved on the outer side of one end of the T-shaped guide rod.
Preferably, the sealing protrusion on the sealing plug is matched with the through hole on the sealing seat.
The beneficial effects of the utility model are as follows: the puncture needle assembly penetrates through the needle body to be inserted, the puncture needle assembly is pulled out of the needle body after the puncture is finished, the silica gel sealing plate can automatically seal a needle hole through which the puncture needle assembly penetrates by utilizing the performance of the silica gel sealing plate, so that leakage can be avoided, when the infusion is carried out through the venous indwelling needle, the sealing plug on the anti-reflux assembly can be pushed away from the sealing seat by utilizing the pressure of the liquid medicine during injection, at the moment, the liquid medicine can flow into the needle body to carry out infusion, the sealing plug can be reset by utilizing the elastic force of the reset spring after the infusion is finished, the sealing plug after reset blocks the through hole on the sealing seat, the venous indwelling needle can be changed into a closed state, the occurrence of the phenomenon of reflux of blood can be prevented, and the burden of medical staff can be lightened.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of an anti-reflux venous indwelling needle according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a needle body of an anti-reflux venous indwelling needle according to an embodiment of the present utility model;
FIG. 3 is an enlarged view of a portion A of an anti-reflux venous indwelling needle according to an embodiment of the present utility model;
fig. 4 is a block diagram of a lancet assembly of an anti-reflux venous indwelling needle according to an embodiment of the present utility model.
In the figure:
1. a needle body; 2. an interface; 3. an anti-reflux assembly; 4. a hose; 5. a conical joint; 6. a heparin cap; 7. a conical joint protective cap; 8. a transparent catheter; 9. a handle; 10. a silica gel sealing plate; 11. a lancet assembly; 12. protecting textures; 13. a plug cover; 14. a puncture needle; 15. a sealing seat; 16. a through port; 17. a T-shaped guide rod; 18. a sealing plug; 19. and a return spring.
Detailed Description
For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the present utility model, an anti-reflux venous indwelling needle is provided.
Example 1
As shown in fig. 1-4, an anti-reflux venous indwelling needle according to an embodiment of the utility model comprises a needle body 1, an interface 2 is arranged on one side of the needle body 1, an anti-reflux component 3 is arranged in an inner cavity of the interface 2, one end of the interface 2 is connected with a conical joint 5 through a hose 4, a heparin cap 6 and a conical joint protection cap 7 are arranged on the conical joint 5, a transparent catheter 8 is fixedly arranged at the top end of the needle body 1, a handheld handle 9 is fixedly arranged on the outer side of the needle body 1, a silica gel sealing plate 10 is fixedly arranged in the inner cavity of the bottom end of the needle body 1, a puncture needle component 11 is inserted into the inner cavity of the needle body 1, the puncture needle component 11 can be inserted through the needle body 1 after the puncture is finished, the puncture needle component 11 can be pulled out of the needle body 1, a needle hole through which the puncture needle component 11 can be automatically sealed by using the performance of the silica gel sealing plate 10, a protection texture 12 is arranged on the surface of the handheld handle 9, and the hand friction force can be improved to facilitate the puncture operation by holding the venous indwelling needle through the handheld handle 9.
Example two
As shown in fig. 1-4, an anti-reflux venous indwelling needle according to an embodiment of the utility model comprises a needle body 1, an interface 2 is arranged at one side of the needle body 1, an anti-reflux component 3 is arranged in an inner cavity of the interface 2, one end of the interface 2 is connected with a conical joint 5 through a hose 4, a heparin cap 6 and a conical joint protection cap 7 are arranged on the conical joint 5, a transparent catheter 8 is fixedly arranged at the top end of the needle body 1, a handheld handle 9 is fixedly arranged at the outer side of the needle body 1, a silica gel sealing plate 10 is fixedly arranged in an inner cavity at the bottom end of the needle body 1, a puncture needle component 11 is inserted into the inner cavity of the needle body 1, the puncture needle component 11 can be inserted through the needle body 1, the puncture needle component 11 can be pulled out of the needle body 1 after puncture is finished, the silica gel sealing plate 10 can automatically seal a needle hole through which the puncture needle component 11 passes through, the puncture needle component 11 comprises a plug cover 13, a puncture needle 14 is inserted into the top of the plug cover 13, an insertion hole is arranged at the top of the plug cover 13, the insertion hole is formed at the jack through the jack 14 is fixedly arranged at the top of the plug cover 13, the puncture needle 14 can be separated from the plug cover 13, the puncture needle component after the puncture needle 14 is inserted into the plug cover, the puncture needle component can be inserted from the plug cover, and the needle 1, and the puncture needle component can be pulled out from the needle body 1, and can be sealed at the bottom end by two times, after the puncture needle 1.
Example III
As shown in fig. 1-4, an anti-reflux venous indwelling needle according to an embodiment of the utility model comprises a needle body 1, an interface 2 is arranged at one side of the needle body 1, an anti-reflux component 3 is arranged in an inner cavity of the interface 2, one end of the interface 2 is connected with a conical joint 5 through a hose 4, a heparin cap 6 and a conical joint protective cap 7 are arranged on the conical joint 5, a transparent catheter 8 is fixedly arranged at the top end of the needle body 1, a handheld handle 9 is fixedly arranged at the outer side of the needle body 1, a silica gel sealing plate 10 is fixedly arranged in an inner cavity at the bottom end of the needle body 1, a puncture needle component 11 is inserted into the inner cavity of the needle body 1, the puncture needle component 11 can be inserted through the needle body 1, the puncture needle component 11 can be pulled out from the needle body 1 after the puncture is finished, the silica gel sealing plate 10 can automatically seal a needle hole through which the puncture needle component 11 passes by utilizing the performance of the silica gel sealing plate 3 comprises a sealing seat 15, the through hole 16 is formed in the middle of the sealing seat 15, the T-shaped guide rod 17 is inserted in the sealing seat 15, one end of the T-shaped guide rod 17 is fixedly connected with the sealing plug 18, the reset spring 19 is sleeved outside one end of the T-shaped guide rod 17, sealing protrusions on the sealing plug 18 are matched with the through hole 16 on the sealing seat 15, when the intravenous infusion is performed through the intravenous infusion set, the sealing plug 18 on the anti-countercurrent component 3 can be pushed away from the sealing seat 15 by utilizing the pressure of liquid medicine during injection, at the moment, the liquid medicine can flow into the needle body 1 for injection and infusion, the sealing plug 18 can be reset by utilizing the elastic force of the reset spring 19 after the injection and infusion are completed, the reset sealing plug 18 blocks the through hole 16 on the sealing seat 15, the intravenous infusion set can be changed into a closed state, and the phenomenon of backflow of blood can be prevented.
In summary, by means of the above technical scheme of the utility model, when the device is used, the puncture needle assembly 11 can be inserted through the needle body 1, the puncture needle assembly 11 can be pulled out of the needle body 1 after the puncture is finished, the silica gel sealing plate 10 can automatically seal the needle hole through which the puncture needle assembly 11 passes by utilizing the performance of the silica gel sealing plate, the puncture needle 14 and the plug cover 13 can be separated, the puncture needle 14 can be pulled out of the plug cover 13 after the puncture is finished, the plug cover 13 can be covered at the bottom end of the needle body 1 to secondarily seal the bottom end of the needle body 1, when the injection and the transfusion are carried out through the venous indwelling needle, the sealing plug 18 on the backflow prevention assembly 3 can be pushed away from the sealing seat 15 by utilizing the pressure during the injection of the liquid medicine, at the moment, the injection and the transfusion can be carried out in the needle body 1 after the injection and the transfusion is finished, the sealing plug 18 can be reset by utilizing the elasticity of the reset spring 19, the sealing plug 18 can block the through hole 16 on the sealing seat 15 after the reset, the indwelling needle can be changed into a closed state, and the venous indwelling needle can be prevented from generating a backflow phenomenon.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. An anti-reflux venous indwelling needle, which comprises a needle body (1) and is characterized in that: needle body (1) one side is equipped with interface (2), interface (2) inner chamber is equipped with prevents against the flow subassembly (3), interface (2) one end is connected with conical joint (5) through hose (4), be equipped with heparin cap (6) and conical joint protection cap (7) on conical joint (5), needle body (1) top is fixed to be equipped with transparent pipe (8), needle body (1) outside is fixed to be equipped with handheld handle (9), needle body (1) bottom inner chamber is fixed to be equipped with silica gel closing plate (10), needle body (1) inner chamber alternates and is equipped with pjncture needle subassembly (11).
2. An anti-reflux venous indwelling needle according to claim 1, in which: the surface of the hand-held handle (9) is provided with a protective texture (12).
3. An anti-reflux venous indwelling needle according to claim 2, in which: the puncture needle assembly (11) comprises a plug cover (13), and a puncture needle (14) is inserted into the top of the plug cover (13).
4. An anti-reflux venous indwelling needle according to claim 3, in which: the top of the plug cover (13) is provided with a jack, and the puncture needle (14) is fixed at the top of the plug cover (13) through the jack in a penetrating way.
5. An anti-reflux venous indwelling needle according to claim 4, in which: the anti-backflow assembly (3) comprises a sealing seat (15), a through hole (16) is formed in the middle of the sealing seat (15), a T-shaped guide rod (17) is inserted in the sealing seat (15), one end of the T-shaped guide rod (17) is fixedly connected with a sealing plug (18), and a reset spring (19) is sleeved outside one end of the T-shaped guide rod (17).
6. An anti-reflux venous indwelling needle according to claim 5, in which: the sealing bulge on the sealing plug (18) is matched with the through hole (16) on the sealing seat (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490921.1U CN220158920U (en) | 2023-06-12 | 2023-06-12 | Anti-reflux venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321490921.1U CN220158920U (en) | 2023-06-12 | 2023-06-12 | Anti-reflux venous indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220158920U true CN220158920U (en) | 2023-12-12 |
Family
ID=89051915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321490921.1U Active CN220158920U (en) | 2023-06-12 | 2023-06-12 | Anti-reflux venous indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220158920U (en) |
-
2023
- 2023-06-12 CN CN202321490921.1U patent/CN220158920U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |