CN208404769U - Anti-fold arterial puncture detaining needle - Google Patents
Anti-fold arterial puncture detaining needle Download PDFInfo
- Publication number
- CN208404769U CN208404769U CN201720840205.XU CN201720840205U CN208404769U CN 208404769 U CN208404769 U CN 208404769U CN 201720840205 U CN201720840205 U CN 201720840205U CN 208404769 U CN208404769 U CN 208404769U
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- CN
- China
- Prior art keywords
- needle
- outer catheter
- puncture
- soft segment
- fold
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to the field of medical instrument technology, and in particular to a kind of anti-fold arterial puncture detaining needle, comprising: remaining needle and puncture needle, the remaining needle include: outer catheter and the indwelling handle for being connected to outer catheter tail end；The puncture needle includes: needle core and the puncture handle that needle core tail end is arranged in；The front end of the needle core passes through the inner hole of indwelling handle and outer catheter and protrudes from the front end of outer catheter, and the inner hole of outer catheter matches with needle core, insert or pull out puncture needle can in remaining needle；The outer catheter includes: the hard segment of the rigidity of front end and the soft segment flexible of tail end.By adopting the above technical scheme, anti-fold arterial puncture detaining needle provided by the utility model can effectively avoid outer catheter long-time indwelling and discounting or breakage phenomenon for being likely to occur on human body, improve the effect and safety of indwelling.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of anti-fold arterial puncture detaining needle.
Background technique
Arterial puncture detaining needle used at present mainly includes retained needle puncture needle, and the needle core activity of puncture needle, which is threaded through, to be stayed
It sets in the outer catheter of needle；Needle core usually has steel material to be made, and has rigidity, convenient for merging outer catheter and is punctured, is led outside
Pipe is also the stereoplasm tube made of the materials such as polyurethane.After being punctured successfully using needle core, needle core is exited, and outer catheter is placed in blood vessel simultaneously
Indwelling needs the indwelling a few days in intravascular when necessary.
Only, existing arterial puncture detaining needle, due to outer catheter and hard material, long-time is retained in human body
It is interior, it is easy to cause outer catheter to give a discount even because of physical activity and fracture, and then lead to the puncture blocked path, cannot normally survey
Constant-pressure, or even outer catheter occur and remain in the case where intra-arterial causes severe complication, indwelling effect is influenced, and hidden in safety
Suffer from.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of anti-fold arterial puncture detaining needle, outer catheter can be effectively avoided
The long-time indwelling on human body and the discounting or breakage phenomenon being likely to occur, improve the effect and safety of indwelling.
A kind of anti-fold arterial puncture detaining needle, comprising: remaining needle and puncture needle, the remaining needle include: outer catheter and
It is connected to the indwelling handle of outer catheter tail end；The puncture needle includes: needle core and the puncture handle that needle core tail end is arranged in；It is described
The front end of needle core passes through the inner hole of indwelling handle and outer catheter and protrudes from the front end of outer catheter, and the inner hole and needle core of outer catheter
Match, insert or pull out puncture needle can in remaining needle；The outer catheter includes: the hard segment and tail of the rigidity of front end
The soft segment flexible at end.
The flexible design of outer catheter soft segment, does not influence the effect of outer catheter indwelling transmission, and can effectively avoid outer catheter
Discounting is led because of physical activity or even is fractureed, guarantees the effect of outer catheter long-time indwelling on human body, is eliminated because outer catheter is rolled over
Break and give human body bring security risk, using effect is more preferably.
Further, the length of the soft segment is 15mm-25mm.It is soft between the actual volume and length of outer catheter
Section is too long to will lead to entire outer catheter rigidity deficiency, is not easy to be placed in blood vessel, and soft segment is too short then flexible insufficient；Through test of many times
It obtains, the length of soft segment is preferably within the scope of 15mm-25mm, to reconcile the flexibility and rigidity of outer catheter.
Further, the length of the soft segment is 20mm, keeps the flexibility of outer catheter and rigidity more moderate.
Further, the soft segment is silicone tube or polyurethane tube, and flexibility is splendid and smaller to the harm of human body.
Further, further includes: the holder of a rigidity, the holder are removably nested in the outer of the soft segment
It encloses, and the length in soft segment axial direction of holder is greater than the length of soft segment.When holder is nested with outside soft segment, eliminate
The flexibility of soft segment and so that entire outer catheter is kept rigidity, facilitate puncture；And after the completion of puncture, holder is removed to restore soft
The flexibility of matter section facilitates long-time indwelling to use.
Further, the holder be include two semicircular arcs intermediate plate clip structure；Two folders of clamping
Piece forms a pressing sleeve in the circular tube chamber of the periphery of the soft segment, separates two intermediate plates to remove the holder.It keeps
Part uses clip structure, the rigidity of holding outer catheter that can be fabulous, and structure is simple, presss from both sides, takes conveniently.
In conclusion by adopting the above technical scheme, anti-fold arterial puncture detaining needle provided by the utility model can be effective
Outer catheter long-time indwelling and discounting or breakage phenomenon for being likely to occur on human body are avoided, the effect and safety of indwelling are improved
Property.
Detailed description of the invention
Fig. 1 is the structural decomposition diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the utility model embodiment assembled state；
Fig. 3 is the structure enlargement diagram in the portion A in Fig. 2.
Appended drawing reference: 1- remaining needle；11- outer catheter；111- hard segment；112- soft segment；12- indwelling handle；2- is punctured
Needle；21- needle core；22- punctures handle；3- holder；31- intermediate plate
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.
As shown in Figure 1 to Figure 3, anti-fold arterial puncture detaining needle provided in this embodiment, comprising: remaining needle 1 and puncture
Needle 2, remaining needle 1 are mainly made of outer catheter 11 with the indwelling handle 12 for being connected to 11 tail end of outer catheter, and puncture needle 2 is mainly by needle
Core 21 and the puncture handle 22 that 21 tail end of needle core is set；The front end of needle core 21 passes through the indwelling handle 12 of remaining needle 1 and leads outside
The inner hole of pipe 11, and the front end of outer catheter 11 is protruded from, to carry out arteriopuncture, and the inner hole of outer catheter 11 and 21 phase of needle core
Matching, insert or pull out puncture needle 2 can in remaining needle 1, complete to puncture the transition with indwelling.Particularly, the utility model
The outer catheter 11 of offer is made of the hard segment 111 of rigidity and the soft segment flexible 112 of tail end of front end, hard segment 111
Material and structure can refer to existing remaining needle, be the rigid structure of hard, and the silica gel that soft segment 112 is elastic using band
Pipe or polyurethane tube etc. are made, and so that it is had splendid flexibility, and smaller to the harm of human body.
Inventors have found that in the case where the actual volume of outer catheter 11 and length are relatively more fixed, the too long meeting of soft segment 112
Cause entire 11 rigidity of outer catheter insufficient, is not easy to be placed in blood vessel, and soft segment 112 is too short then flexible insufficient, it is difficult to reach expected
Bending prevention effect；Then it is obtained by test of many times, the length of soft segment 112 is outer to reconcile preferably within the scope of 15mm-25mm
Balance between the flexibility and rigidity of conduit 11.The length of soft segment 112 is preferably 20mm in the present embodiment, makes outer catheter 11
Flexible and rigidity is more moderate, punctures and indwelling effect is than more prominent.
The flexible design of 11 soft segment 112 of outer catheter, does not influence the effect of 11 indwelling of outer catheter, transmission, and can effectively keep away
Exempt from outer catheter 11 to lead discounting because of physical activity or even fracture, guarantees the effect of the long-time indwelling on human body of outer catheter 11, disappear
Except human body bring security risk is given because outer catheter 11 fractures, using effect is more preferably.
It further, is the influence caused by puncture process of soft segment 112 for avoiding outer catheter 11, in the base of above structure
The holder 3 of a rigidity can also be added on plinth, which is removably nested in the periphery of soft segment 112, and its edge
The length that length in 112 axial direction of soft segment is greater than soft segment 112 enables holder 3 that soft segment 112 is completely covered and overlaps
Onto hard segment 111.Holder 3 is nested with when soft segment 112 is outer, can be eliminated the flexibility of soft segment 112 and be made to lead outside entire
Pipe 11 keeps rigidity, facilitates puncture；After the completion of puncture, holder 3 is removed to restore the flexibility of soft segment 112, when facilitating long
Between indwelling use.
In the present embodiment, holder 3 is set as the clip structure that one includes the intermediate plate 31 of two semicircular arcs；Clamping two
A intermediate plate 31 forms a pressing sleeve in the circular tube chamber of the periphery of soft segment 112, so that rigidity is presented in entire outer tube 11；It separates
For two intermediate plates 31 easily to remove holder 3, structure is simple, presss from both sides, takes conveniently.
In specific puncture process, outer catheter 11 hard segment 111 completely into arteries after, remove clip structure
Holder 3, at this point, needle core 21 does not exit completely, but part is retained in outer catheter 11, by needle core 21 support after
It is continuous that 11 soft segment 112 of outer catheter for not yet entering blood vessel is sent into blood vessel, needle core 21 is finally taken out, puncture finishes.Remaining needle 1 connects
The soft segment 112 that the position inside and outside human body is exactly outer catheter 11 is connect, makes remaining needle 1 will not be because of human body with feature flexible
Activity and lead discounting or even fracture, ensure that the effect of indwelling transmission, safety is also higher.
By adopting the above technical scheme, anti-fold arterial puncture detaining needle provided by the utility model can effectively avoid outer lead
Pipe long-time indwelling and discounting or breakage phenomenon for being likely to occur on human body, improve the effect and safety of indwelling.
It should be noted that preferred embodiment above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should be managed
Solution: it can still modify to technical solution documented by previous embodiment, or to some or all of technologies
Feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the utility model is real
The range of a technical solution is applied, should all be covered in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of anti-fold arterial puncture detaining needle characterized by comprising remaining needle and puncture needle,
The remaining needle includes: outer catheter and the indwelling handle for being connected to outer catheter tail end；
The puncture needle includes: needle core and the puncture handle that needle core tail end is arranged in；
The front end of the needle core passes through the inner hole of indwelling handle and outer catheter and protrudes from the front end of outer catheter, and outer catheter is interior
Hole matches with needle core, insert or pull out puncture needle can in remaining needle；
The outer catheter includes: the hard segment of the rigidity of front end and the soft segment flexible of tail end.
2. anti-fold arterial puncture detaining needle according to claim 1, which is characterized in that
The length of the soft segment is 15mm-25mm.
3. anti-fold arterial puncture detaining needle according to claim 2, which is characterized in that
The length of the soft segment is 20mm.
4. anti-fold arterial puncture detaining needle according to claim 3, which is characterized in that
The soft segment is silicone tube or polyurethane tube.
5. anti-fold arterial puncture detaining needle according to claim 1 to 4, which is characterized in that
Further include: the holder of a rigidity, the holder are removably nested in the periphery of the soft segment, and holder
Length in soft segment axial direction is greater than the length of soft segment.
6. anti-fold arterial puncture detaining needle according to claim 5, which is characterized in that
The holder be include two semicircular arcs intermediate plate clip structure；Clamping two intermediate plates form a pressing sleeve
Circular tube chamber in the periphery of the soft segment separates two intermediate plates to remove the holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840205.XU CN208404769U (en) | 2017-07-11 | 2017-07-11 | Anti-fold arterial puncture detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840205.XU CN208404769U (en) | 2017-07-11 | 2017-07-11 | Anti-fold arterial puncture detaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208404769U true CN208404769U (en) | 2019-01-22 |
Family
ID=65126708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840205.XU Expired - Fee Related CN208404769U (en) | 2017-07-11 | 2017-07-11 | Anti-fold arterial puncture detaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208404769U (en) |
-
2017
- 2017-07-11 CN CN201720840205.XU patent/CN208404769U/en not_active Expired - Fee Related
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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: 20190122 Termination date: 20200711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |