CN213430451U - Artery puncture needle convenient to operate - Google Patents
Artery puncture needle convenient to operate Download PDFInfo
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- CN213430451U CN213430451U CN202021871885.XU CN202021871885U CN213430451U CN 213430451 U CN213430451 U CN 213430451U CN 202021871885 U CN202021871885 U CN 202021871885U CN 213430451 U CN213430451 U CN 213430451U
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- needle
- plug
- puncture needle
- outlet pipe
- head seat
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Abstract
An artery puncture needle convenient to operate comprises an indwelling needle and a puncture needle, wherein the front end of the puncture needle penetrates out of the indwelling needle, the indwelling needle comprises a valve, a cylindrical needle head seat and an indwelling hose communicated with one end of the needle head seat, a circular opening is formed in the upper side wall of the needle head seat, and a sealing ring is fixed on the inner side of the opening; the valve comprises at least a first outlet pipe and a second outlet pipe; the first outlet pipe comprises an upper sliding part and a lower inserting part which enter the needle seat; the sliding part can vertically slide and penetrate through the sealing ring, and a plug is vertically arranged on the inner wall of the needle head seat at a position corresponding to the round opening; the insertion part is symmetrically provided with a pair of through holes, and the puncture needle penetrates through the through holes; when the part of the insertion part with the through hole moves downwards and is completely sleeved with the plug, the plug seals the through hole and the first outlet pipe; the utility model discloses an artery pjncture needle, the blood overflow prevention is effectual, need not to press hard when pulling out the needle, convenient operation and high-efficient.
Description
Technical Field
The utility model belongs to the technical field of the artery pjncture needle, concretely relates to convenient operation's artery pjncture needle.
Background
One of the basic skills which must be mastered by medical workers in the arteriopuncture is mainly used for treating emergency and measuring central venous pressure of patients who need to be transfused for a long time and have puncture difficulty caused by hardening and collapsing of peripheral veins, patients who need to be nourished by whole veins outside intestines, critical patients and patients who have blood sampling difficulty.
The used artery pjncture needle of current artery puncture art, when pulling out the nook closing member after the puncture is successful, need adopt great dynamics to press and keep the needle hose portion, if press not in place, often can lead to arterial blood to spill over in a large number even splash, make the nursing staff expose under the infection risk, the practice shows, even if comparatively abundant operator, when carrying out artery puncture to various patients, still occasionally still have the more phenomenon emergence of spilling over of arterial blood.
Therefore, there is a need for an arterial puncture needle that is easy to operate and effective in stopping bleeding.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an artery puncture needle with good blood overflow prevention effect and convenient operation.
In order to solve the technical problem, the utility model discloses an artery puncture needle convenient to operate, which comprises an indwelling needle and a puncture needle, wherein the front end of the puncture needle penetrates out of the indwelling needle, the indwelling needle comprises a valve, a tubular needle seat and an indwelling hose communicated with one end of the needle seat, a circular opening is arranged on the upper side wall of the needle seat, and a sealing ring is fixed on the inner side of the opening;
the valve comprises at least a first outlet pipe and a second outlet pipe; the first outlet pipe comprises an upper sliding part and a lower inserting part which enter the needle seat;
the sliding part can vertically slide and penetrate through the sealing ring, and a plug is vertically arranged on the inner wall of the needle head seat at a position corresponding to the round opening; the outer diameter of the plug is matched with the inner diameter of the insertion part; the upper part of the plug extends into the insertion part;
the insertion part is symmetrically provided with a pair of through holes, and the puncture needle penetrates through the through holes; when the part of the insertion part with the through hole moves downwards and is completely sleeved with the plug, the plug seals the through hole and the first outlet pipe.
Preferably, the diameter of the insertion portion is larger than the diameter of the circular opening.
Preferably, a heparin cap is arranged on the second outlet pipe of the valve.
Preferably, the needle holder further comprises a cap for closing the end of the needle holder remote from the barrel.
Preferably, the part of the sliding part exposed out of the needle seat is sleeved with a spring, and the spring is used for resetting the first outlet pipe.
Preferably, the top of the plug is provided with a concave surface along the axial direction of the puncture needle, and the puncture needle passes through the concave surface.
Preferably, the plug is integrally formed with the needle base.
Preferably, the plug is made of a high-elasticity rubber material.
The artery puncture needle convenient to operate of the utility model has the advantages that:
the utility model discloses a convenient operation's artery pjncture needle, the pjncture needle passes the through-hole of insertion portion, when pulling out the needle after the puncture is successful, press the valve downwards when pulling out the pjncture needle, when making the pjncture needle withdraw from the through-hole, the quick cover of insertion portion is on the plug, the route of first outlet pipe is sealed to play the effect that prevents the hemorrhage, loosen the valve, the insertion portion upwards removes under the effect of spring, the route of blood circulation resumes, need not to press hard when pulling out the needle, convenient operation and high efficiency.
Drawings
Fig. 1 is a schematic structural view of an artery puncture needle convenient to operate.
The reference numbers in the figures are: 1-indwelling needle, 2-puncture needle, 3-valve, 4-needle head seat, 5-indwelling hose, 6-sealing ring, 7-first outlet pipe, 710-sliding part, 720-insertion part, 8-second outlet pipe, 9-plug, 10-through hole, 11-heparin cap, 12-adjusting button and 13-spring.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," when used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, an artery puncture needle convenient to operate comprises an indwelling needle 1 and a puncture needle 2, wherein the front end of the puncture needle penetrates out of the indwelling needle, the indwelling needle comprises a valve 3, a tubular needle head seat 4 and an indwelling hose 5 communicated with one end of the needle head seat, a circular opening is formed in the upper side wall of the needle head seat, and a sealing ring 6 is fixed on the inner side of the opening;
the valve comprises a first outlet pipe 7 and a second outlet pipe 8; the first outlet tube comprises a sliding part 710 of the upper section and an insertion part 720 of the lower section into the needle base;
the sliding part can vertically slide and penetrate through the sealing ring, and a plug 9 is vertically arranged on the inner wall of the needle head seat corresponding to the round opening; the outer diameter of the plug is matched with the inner diameter of the insertion part; the upper part of the plug extends into the insertion part;
a pair of through holes 10 are symmetrically formed in the insertion part, and the puncture needle penetrates through the through holes; when the part of the insertion part with the through hole moves downwards and is completely sleeved with the plug, the plug seals the through hole and the first outlet pipe.
The diameter of the insertion portion is larger than the diameter of the circular opening. The arrangement can form a limit position to prevent the insertion part from separating from the needle seat.
A heparin cap 11 is arranged on a second outlet pipe of the valve. The second outlet pipe can be used for connecting a pressure sensor and the like; the valve can adopt a single-way valve or a valve with more interfaces, in the embodiment, the adjusting button 12 of the valve is arranged on the side part of the valve, and the upper end surface of the valve is a plane convenient to press.
The needle seat is used for sealing the needle seat. The cap is used for sealing one end of the closed needle head seat away from the needle tube after the needle is pulled out; certainly, the end of the closed needle head seat far away from the needle tube can be also provided with a conventional interface connected with the catheter, and after the needle is pulled out, the end of the closed needle head seat far away from the needle tube is connected with the catheter.
The part of the sliding part exposed out of the needle head seat is sleeved with a spring 13, and the spring is used for resetting the first outlet pipe.
The top of the plug is provided with a concave surface along the axis direction of the puncture needle, and the puncture needle passes through the right upper part of the concave surface.
The plug and the needle head seat are integrally formed, namely the plug and the needle head seat are made of hard materials.
When the needle is pulled out after the successful puncture, the valve is lightly pressed downwards while the puncture needle is pulled out, so that the puncture needle exits from the through hole, the insertion part is quickly sleeved on the plug, the passage of the first outlet pipe is closed, the effect of preventing the blood overflow is achieved, the needle tube does not need to be pressed when the needle is pulled out, and the operation is convenient and efficient; after the needle is pulled out, the end of the needle head seat far away from the needle tube is closed by a cover, or a conduit is connected with the end of the needle head seat far away from the needle tube, then the valve is loosened, the inserting part moves upwards under the action of the spring, and the passage of blood circulation is recovered.
Example 2
Similar to example 1, the difference is that the stopper is made of a highly elastic rubber material. When the valve is pressed down, the plug is pressed to deform by the puncture needle, and when the puncture needle completely exits from the through hole, the plug rebounds rapidly to plug the through hole, so that the plugging speed is higher and the plugging is smoother when the needle is pulled out compared with the embodiment 1.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (8)
1. An artery puncture needle convenient to operate comprises an indwelling needle and a puncture needle, wherein the front end of the puncture needle penetrates out of the indwelling needle, and the artery puncture needle is characterized in that the indwelling needle comprises a valve, a cylindrical needle head seat and an indwelling hose communicated with one end of the needle head seat, a circular opening is formed in the upper side wall of the needle head seat, and a sealing ring is fixed on the inner side of the opening;
the valve comprises at least a first outlet pipe and a second outlet pipe; the first outlet pipe comprises an upper sliding part and a lower inserting part which enter the needle seat;
the sliding part can vertically slide and penetrate through the sealing ring, and a plug is vertically arranged on the inner wall of the needle head seat at a position corresponding to the round opening; the outer diameter of the plug is matched with the inner diameter of the insertion part; the upper part of the plug extends into the insertion part;
the insertion part is symmetrically provided with a pair of through holes, and the puncture needle penetrates through the through holes; when the part of the insertion part with the through hole moves downwards and is completely sleeved with the plug, the plug seals the through hole and the first outlet pipe.
2. An operatively convenient arterial puncture needle according to claim 1, wherein the diameter of the insertion portion is greater than the diameter of the circular opening.
3. The arteriopuncture needle of claim 1, wherein a heparin cap is provided on the second outlet tube of the valve.
4. An easy to operate arterial puncture needle according to claim 1, further comprising a cap for closing the end of the needle base remote from the needle cannula.
5. The arteriopuncture needle of claim 1, wherein the portion of the sliding part exposed from the needle base is covered with a spring for restoring the first outlet tube.
6. The arteriopuncture needle of claim 1, wherein the top of the stopper has a concave surface along the axial direction of the puncture needle, and the puncture needle passes through the concave surface.
7. An artery puncture needle convenient to operate according to claim 6, wherein the plug is integrally formed with the needle base.
8. The arteriopuncture needle of claim 6, wherein said stopper is made of a highly elastic rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871885.XU CN213430451U (en) | 2020-09-01 | 2020-09-01 | Artery puncture needle convenient to operate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871885.XU CN213430451U (en) | 2020-09-01 | 2020-09-01 | Artery puncture needle convenient to operate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213430451U true CN213430451U (en) | 2021-06-15 |
Family
ID=76319513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021871885.XU Active CN213430451U (en) | 2020-09-01 | 2020-09-01 | Artery puncture needle convenient to operate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213430451U (en) |
-
2020
- 2020-09-01 CN CN202021871885.XU patent/CN213430451U/en active Active
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