CN204484253U - A kind of puncture needle that can control guide wire direction - Google Patents
A kind of puncture needle that can control guide wire direction Download PDFInfo
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- CN204484253U CN204484253U CN201420867540.5U CN201420867540U CN204484253U CN 204484253 U CN204484253 U CN 204484253U CN 201420867540 U CN201420867540 U CN 201420867540U CN 204484253 U CN204484253 U CN 204484253U
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- guide wire
- needle
- inclined plane
- puncture needle
- puncture
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Abstract
The utility model discloses a kind of puncture needle that can control guide wire direction, puncture needle body is an elongated shank (1), and this shank (1) is hollow structure, is provided with endoporus and passes for guide wire (4); One end of this shank (1) is arranged on needle stand (3), and the end of the other end is needle point (2); The pinpoint inclined plane (21) of described needle point (2) is an acute angle being less than or equal to 30 degree; There is an inwardly projecting (22) described pinpoint inclined plane (21) inner side, close needle tip; Described inwardly projecting (22) covers the part of pinpoint inclined plane (21) near needle tip, another part of described pinpoint inclined plane (21) is a cone shaped opening (23), and guide wire (4) thus cone shaped opening (23) passes through.The application of this kind of puncture needle, welcome change puncture direction in piercing process, and locate accurately, improve the success rate of puncture, reduce the generation of related complication.
Description
Technical field
This utility model relates to medical instruments field, is specifically related to a kind of puncture needle for row puncture procedure, particularly relates to a kind of puncture needle that can control guide wire direction.
Background technology
The application (comprising tremulous pulse or venipuncture) of puncture technique successfully gives treatment to patient clinically, the especially successful guarantee of Severe acute disease patient.Several puncture needles common at present, the use restriction that respective existence is certain, in the process implementing puncture procedure, once puncture needle intravasation, the pinpoint inclined plane direction accurately judging this puncture needle will be difficult to, thus, for via puncture needle needle body, from the trend of the guide wire that pinpoint inclined plane passes, also will be difficult to estimate, very big inconvenience is brought, especially abecedarian to operation.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of puncture needle that can control guide wire direction, and in piercing process, accurately can judge the pinpoint inclined plane direction of puncture needle, greatly improve puncture success rate, and structure is simple, convenient operation.
The external form of puncture needle is roughly the same with puncture needle conventional clinically at present with material, and puncture needle body is an elongated shank;
For solving the problems of the technologies described above, this utility model provides a kind of puncture needle that can control guide wire direction, and puncture needle body is an elongated shank, and this shank is hollow structure, is provided with endoporus and passes for guide wire; One end of this shank is arranged on needle stand, and the end of the other end is needle point; The pinpoint inclined plane of described needle point is an acute angle being less than or equal to 30 degree; An inwardly projecting is had inside described pinpoint inclined plane, near needle tip; Described inwardly projecting covers the part of pinpoint inclined plane near needle tip, and another part of described pinpoint inclined plane is a cone shaped opening, and guide wire thus cone shaped opening passes through.
As preferred technical scheme, described inwardly projecting covers pinpoint inclined plane near 1/3rd of needle tip, and other 2/3rds parts of described pinpoint inclined plane are a cone shaped opening.
As preferred technical scheme, angle B≤15 degree of described inwardly projecting.
As preferred technical scheme, the openings of sizes of described cone shaped opening is as the criterion with the optimum aperture by guide wire; The external diameter of described guide wire is 0.8-0.9mm.
As preferred technical scheme, there is the bar shaped indicating window of a projection at described needle stand place; The protrusion direction of bar shaped indicating window is consistent with the opening direction of pinpoint inclined plane.
As preferred technical scheme, the length of described bar shaped indicating window be 5mm, wide be 1mm.
As preferred technical scheme, the endoporus of described shank is communicated with the endoporus of needle stand; The external diameter of described shank is 1.5-1.8mm.
Compared with prior art, this utility model has following beneficial effect: this utility model puncture needle structure is simple, convenient operation, can control by the direction of the guide wire passed in puncture needle, the pinpoint inclined plane direction of accurate judgement puncture needle, this clinical practice being puncture technique brings great convenience, puncture direction can be changed arbitrarily in piercing process, and locate accurately, improve the success rate of puncture, reduce the generation of related complication, and be that carrying out further of interventional technique provides technical guarantee clinically.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is described in further detail.
Fig. 1 is the structural representation of this utility model puncture needle embodiment;
Fig. 2 is the guide wire guide effect schematic diagram of this utility model puncture needle embodiment.
In figure, description of reference numerals is as follows:
1 is shank, and 2 is needle points, and 21 is pinpoint inclined planes, and 22 is inwardly projectings, and 23 is cone shaped openings, and 3 is needle stands, and 31 is bar shaped indicating windows, and 4 is guide wires, and A is the angle of pinpoint inclined plane 21, and B is the angle of inwardly projecting 22.
Detailed description of the invention
As depicted in figs. 1 and 2, the external form of this utility model puncture needle is roughly the same with puncture needle conventional clinically at present with material, puncture needle body is an elongated shank (1), and this shank (1) is hollow structure, is provided with endoporus and passes for guide wire 4; One end of shank (1) is arranged on needle stand 3; The end of the other end is needle point 2; The pinpoint inclined plane 21 of described needle point 2 is an acute angle (angle A see in Fig. 1) being less than or equal to 30 degree; An inwardly projecting 22 is had, angle B≤15 degree of inwardly projecting 22 inside described pinpoint inclined plane 21, near needle tip; Described inwardly projecting 22 covers pinpoint inclined plane 21 near about 1/3rd of needle tip; Other about 2/3rds parts of described pinpoint inclined plane 21 are a cone shaped opening 23, allow guide wire 4 thus cone shaped opening 23 by and the trend of this guide wire 4 is had to the effect of guiding; The size of the cone shaped opening 23 of described pinpoint inclined plane 21 is then as the criterion with the optimum aperture by guide wire 4; The external diameter of described guide wire 4 is 0.8-0.9mm; The bar shaped indicating window 31 that needle stand 3 place has one to be about 5mm, wide about 1mm projection; The protrusion direction of bar shaped indicating window 31 is consistent with the opening direction of pinpoint inclined plane 21, plays indicative function; The endoporus of described shank 1 is communicated with the endoporus of needle stand 3; The external diameter of described shank 1 is at 1.5-1.8mm.
As shown in Figure 1 to Figure 2, this utility model puncture needle is when implementing tremulous pulse or venipuncture, once after puncture needle enters tissue, can according to the guide direction of needle stand 3 place's bar shaped indicating window 31, accurately determine the opening direction of pinpoint inclined plane 21, this is for subsequently via puncture needle body 1, and the guide wire 4 passed from pinpoint inclined plane 21 plays the effect of accurately location; Inwardly projecting 22 inside pinpoint inclined plane 21, for the guide wire 4 passed thus, has the effect of guiding, can control the direction that guide wire 4 passes.This clinical practice being puncture technique brings great convenience, puncture direction can be changed arbitrarily in piercing process, and locate accurately, improve the success rate of puncture, reduce the generation of related complication, and be that carrying out further of interventional technique provides technical guarantee clinically.
Claims (7)
1. can control the puncture needle in guide wire direction, it is characterized in that, puncture needle body is an elongated shank (1), and this shank (1) is hollow structure, is provided with endoporus and passes for guide wire (4); One end of this shank (1) is arranged on needle stand (3), and the end of the other end is needle point (2); The pinpoint inclined plane (21) of described needle point (2) is an acute angle being less than or equal to 30 degree; There is an inwardly projecting (22) described pinpoint inclined plane (21) inner side, close needle tip; Described inwardly projecting (22) covers the part of pinpoint inclined plane (21) near needle tip, another part of described pinpoint inclined plane (21) is a cone shaped opening (23), and guide wire (4) thus cone shaped opening (23) passes through.
2. can control the puncture needle in guide wire direction as claimed in claim 1, it is characterized in that, described inwardly projecting (22) covers pinpoint inclined plane (21) near 1/3rd of needle tip, and other 2/3rds parts of described pinpoint inclined plane (21) are a cone shaped opening (23).
3. can control the puncture needle in guide wire direction as claimed in claim 1, it is characterized in that, angle B≤15 degree of described inwardly projecting (22).
4. can control the puncture needle in guide wire direction as claimed in claim 1, it is characterized in that, the openings of sizes of described cone shaped opening (23) is to be as the criterion by the optimum aperture of guide wire (4); The external diameter of described guide wire (4) is 0.8-0.9mm.
5. can control the puncture needle in guide wire direction as claimed in claim 1, it is characterized in that, there is the bar shaped indicating window (31) of a projection at described needle stand (3) place; The protrusion direction of bar shaped indicating window (31) is consistent with the opening direction of pinpoint inclined plane (21).
6. can control the puncture needle in guide wire direction as claimed in claim 5, it is characterized in that, the length of described bar shaped indicating window (31) be 5mm, wide be 1mm.
7. can control the puncture needle in guide wire direction as claimed in claim 1, it is characterized in that, the endoporus of described shank (1) is communicated with the endoporus of needle stand (3); The external diameter of described shank (1) is 1.5-1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867540.5U CN204484253U (en) | 2014-12-26 | 2014-12-26 | A kind of puncture needle that can control guide wire direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867540.5U CN204484253U (en) | 2014-12-26 | 2014-12-26 | A kind of puncture needle that can control guide wire direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484253U true CN204484253U (en) | 2015-07-22 |
Family
ID=53563554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867540.5U Active CN204484253U (en) | 2014-12-26 | 2014-12-26 | A kind of puncture needle that can control guide wire direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204484253U (en) |
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2014
- 2014-12-26 CN CN201420867540.5U patent/CN204484253U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |