CN207137135U - A kind of mariages braided blood vessel angiography catheter - Google Patents
A kind of mariages braided blood vessel angiography catheter Download PDFInfo
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- CN207137135U CN207137135U CN201720225882.0U CN201720225882U CN207137135U CN 207137135 U CN207137135 U CN 207137135U CN 201720225882 U CN201720225882 U CN 201720225882U CN 207137135 U CN207137135 U CN 207137135U
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- changeover portion
- blood vessel
- catheter body
- mariages
- pipelines
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Abstract
The utility model discloses a kind of mariages braided blood vessel angiography catheter of medical instruments field, including catheter body, changeover portion and soft end：The hardness of the catheter body, the changeover portion and the soft end reduces successively；The openend at the soft end is provided with the First terrace shunk to radially inner side, and the excircle of the inner periphery of the first end of the changeover portion and the First terrace overlaps；The second end of the changeover portion is provided with the second step face shunk to radially inner side, the catheter body includes inner tube, metallic network of pipelines and the outer tube radially set gradually from inside to outside, the metallic network of pipelines is formed by composite wire braiding, the length of the metallic network of pipelines is less than said inner tube and the length of the outer tube, and the inner periphery of first end and the excircle in the second step face for making the catheter body overlap.It has the technical effect that：It has more good crushing resistance, toughness, torsional rotation force and stretching resistance, reduces wriggling frictional force, reduces the infringement to blood vessel surface mucous membrane, reduces secondary injury, improves the comfort level that patient uses.
Description
Technical field
It the utility model is related to a kind of mariages braided blood vessel angiography catheter of medical instruments field.
Background technology
Angiography catheter, be it is a kind of using antibiotic property composite high-molecular material manufacture interventional medical arts be used for pass through
Arteriovenous conveys the interposing catheter of contrast agent to diseased organ or diseased region.Compared with traditional surgery, carry out intervention and control
Treat, without operating on, only need local anaesthesia, open 1mm-2mm osculum, have bleeding is few, wound is small, few intercurrent disease, it is safe and reliable,
The advantages that post-operative recovery is fast, significantly reduce the pain that patient is born.
In order that angiography catheter can bear the immense pressure in angiographic procedure, it is desirable to which angiography catheter has one
Fixed crushing resistance, though the hardness at soft end of the current angiography catheter with certain crushing resistance angiography catheter is too
The big damage for causing to cause human body unnecessary to a certain degree, or soft end reach certain pliability, but because of hardness and catheter body
Difference is too big, causes conduit stretching resistance to weaken significantly, easily causes unexpected fracture and human body is caused damage.
At present, angiography catheter can use the design of changeover portion, but soft end and mistake between soft end and catheter body
Cross between section, the hardness between changeover portion and catheter body is that change is excessive, causes the usage comfort of patient to substantially reduce.
Utility model content
The purpose of this utility model is for overcome the deficiencies in the prior art, there is provided a kind of mariages braided blood vessel radiography is led
Pipe, it has more good crushing resistance, toughness, torsional rotation force and stretching resistance, meets angiography catheter in human vas
Portion's wriggling demand, the wriggling frictional force of angiography catheter in the blood vessels is reduced, reduce angiography catheter and blood vessel surface is glued
The infringement of film, secondary injury is reduced, improve the comfort level that patient uses.
Realizing a kind of technical scheme of above-mentioned purpose is：A kind of mariages braided blood vessel angiography catheter, including catheter body, mistake
Cross section and soft end：The hardness of the catheter body, the changeover portion and the soft end reduces successively；
The openend at the soft end is provided with the First terrace shunk to radially inner side, the first end of the changeover portion
The excircle of inner periphery and the First terrace overlaps；
The second end of the changeover portion is provided with the second step face shunk to radially inner side, and the catheter body includes footpath
To inner tube, metallic network of pipelines and the outer tube set gradually from inside to outside, the metallic network of pipelines is formed by composite wire braiding, institute
The length for stating metallic network of pipelines is less than said inner tube and the length of the outer tube, makes the inner periphery of the first end of the catheter body
Overlapped with the excircle in the second step face.
Further, the hardness of the inner and outer tubes of the catheter body is 60-70D, and the hardness of the changeover portion is
30~35D, the hardness at the soft end is 5~7D.
Further, the metallic network of pipelines is formed using the ingot craft woven of composite wire 16, the width of the composite wire
Degree for 0.07-0.09mm, the helical pitch of the composite wire is about 5.1-5.3mm.
Further, for weaving the composite wire of the metallic network of pipelines, the tensile strength of its monofilament is about 2000-
3000MP。
Further, the second end of the catheter body is provided with handle.
Further, said inner tube, the outer tube, the changeover portion and the soft end use polyether block amide material
It is made.
Employ a kind of technical scheme of mariages braided blood vessel angiography catheter of the present utility model, including catheter body, mistake
Cross section and soft end：The hardness of the catheter body, the changeover portion and the soft end is reduced successively, and the openend at the soft end is set
The First terrace that oriented radially inner side shrinks, the inner periphery of the first end of the changeover portion are outer with the First terrace
Circumference overlaps；The second end of the changeover portion is provided with the second step face shunk to radially inner side, and the catheter body includes
Inner tube, metallic network of pipelines and the outer tube radially set gradually from inside to outside, the metallic network of pipelines are formed by composite wire braiding,
The length of the metallic network of pipelines is less than said inner tube and the length of the outer tube, makes the inner circle of the first end of the catheter body
It is all to be overlapped with the excircle in the second step face.It has the technical effect that：It has more good crushing resistance, toughness, antitorque
Turn power and stretching resistance, meet angiography catheter and wriggled inside human vas demand, reduce angiography catheter in the blood vessels
Wriggling frictional force, reduce infringement of the angiography catheter to blood vessel surface mucous membrane, reduce secondary injury, improve what patient used
Comfort level.
Brief description of the drawings
Fig. 1 is a kind of structural representation of mariages braided blood vessel angiography catheter of the present utility model.
Fig. 2 is the enlarged diagram of Fig. 1 part A.
Fig. 3 is a kind of metallic network of pipelines structural representation of mariages braided blood vessel angiography catheter of the present utility model.
Fig. 4 is soft end and changeover portion, changeover portion and the conduit of a kind of mariages braided blood vessel angiography catheter of the present utility model
The overlap joint schematic diagram of body.
Fig. 5 is that a kind of catheter body of mariages braided blood vessel angiography catheter of the present utility model, changeover portion and soft end are decomposed
Schematic diagram.
Embodiment
Referring to Fig. 1, inventor of the present utility model is in order to preferably managing the technical solution of the utility model
Solution, is described in detail below by specifically embodiment, and with reference to accompanying drawing：
Referring to Fig. 1, a kind of mariages braided blood vessel angiography catheter of the present utility model includes catheter body 1, the and of changeover portion 2
Soft end 3.The hardness of catheter body 1, changeover portion 2 and soft end 3 reduces successively.The openend at soft end 3, which is provided with to radially inner side, shrinks
First terrace 31, the excircle of the inner periphery of the first end of changeover portion 2 and First terrace 31 overlaps.Changeover portion 2
The second end is provided with the second step face 21 shunk to radially inner side.Catheter body 1 includes what is radially set gradually from inside to outside
Inner tube 11, metallic network of pipelines 12 and outer tube 13, metallic network of pipelines 12 are formed by composite wire braiding, and the length of metallic network of pipelines 12 is small
In inner tube 11 and the length of outer tube 13, to improve the toughness of the first end of catheter body 1, make the first end of catheter body 1
Inner periphery and the excircle in second step face 21 overlap.
The purpose so designed is：So that between catheter body 1 and changeover portion 2, the hardness between changeover portion 2 and soft end
Seamlessly transit, the clinch between catheter body 1 and changeover portion 2, the hardness of internal layer is the hardness of changeover portion 2, the hardness of outer layer
For the hardness of catheter body 1, the clinch between soft end 3 and changeover portion 2, the hardness of internal layer is the hardness at soft end 3, outer layer it is hard
Spend for the hardness of changeover portion 2, such bridging arrangement, by changeover portion 2 and soft end 3, between catheter body 1 and changeover portion 2
Superposition with one heart so that soft end 3 and changeover portion 2, the hardness between changeover portion 2 and catheter body 1 have transition without seeming lofty, symbol
Close angiography catheter to wriggle inside human vas demand, reduce angiography catheter wriggling frictional force, reduce angiogram
Infringement of the conduit to blood vessel surface mucous membrane, secondary injury is reduced, improve the comfort level that patient uses.
In the present embodiment, metallic network of pipelines 12 is formed using the braiding of the ingot weaving of mariages 16, monofilament in composite wire
String diameter is about 0.03-0.04mm, and composite wire width is about 0.07-0.09mm, and helical pitch is about 5.1-5.3mm.In composite wire
The tensile strength of monofilament is about 2000-3000MP, catheter body 1 is possessed excellent buckle resistance, moment of torsion transitivity and push
Performance, ensures the second end of operation time control catheter body 1, i.e. operating side and the synchronous axial system of soft end 3, and it is accurate fixed to realize easily
Position operates to coronary arteries radiography position.
The outer tube 13 of the inner tube 11 of the radially inner side of metallic network of pipelines 12 and the radial outside of metallic network of pipelines 12 is hard in catheter body 1
Equal 60-70D is spent, ensures torsion control performance, the push stable performance of catheter body 1, improves the crushing resistance of catheter body 1.Changeover portion 2
Without metallic network of pipelines 12, hardness is 30~35D, can be variously-shaped according to different application target Plastic Forming, has one
Fixed supportive and shape retention, can smoothly enter different blood vessel.The hardness at soft end 3 is about 5-7D, to reduce this practicality
A kind of new mariages braided blood vessel angiography catheter produces damage during intravasation to blood vessel.
A kind of mariages braided blood vessel angiography catheter of the present utility model is selected including catheter body 1, changeover portion 2 and soft end 3
The polyether block amide material of the different trades mark, make a kind of outer surface of mariages braided blood vessel angiography catheter of the present utility model extremely
Smooth, protection blood vessel is not likely to produce thrombus, inner wall smooth, facilitate other intervention apparatus by, while also ensure catheter body 1 with
Between changeover portion 2, the contact performance between changeover portion 2 and soft end 3 is good, prevents a kind of mariages braided blood vessel of the present utility model
Angiography catheter is surprisingly broken in human vas.It is also beneficial to improve using polyether block amide material simultaneously of the present utility model
A kind of saturating x-ray development capability of mariages braided blood vessel angiography catheter.
The second end of catheter body 1 is provided with the hand of operation time control catheter body 1, changeover portion 2 and the synchronous axial system of soft end 3
Handle 4.
In summary, a kind of mariages braided blood vessel angiography catheter of the present utility model, compared to existing angiography catheter more
For good crushing resistance, toughness, torsional rotation force, stretching resistance and saturating x-ray development capability, meet angiography catheter in human vas
Internal wriggling demand, the wriggling frictional force that angiography catheter is subject in the blood vessels is reduced, reduce angiography catheter to blood vessel
The infringement of surface mucosa, secondary injury is reduced, improve the comfort level that patient uses.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to illustrate that this practicality is new
Type, and be not used as to restriction of the present utility model, as long as in spirit of the present utility model, to described above
Change, the modification of embodiment will all fall in Claims scope of the present utility model.
Claims (6)
1. a kind of mariages braided blood vessel angiography catheter, including catheter body, changeover portion and soft end：The catheter body, the mistake
Cross the hardness of section and the soft end reduces successively, it is characterised in that：
The openend at the soft end is provided with the First terrace shunk to radially inner side, the inner circle of the first end of the changeover portion
It is all to be overlapped with the excircle of the First terrace；
The second end of the changeover portion be provided with to radially inner side shrink second step face, the catheter body include radially from
Inner tube, metallic network of pipelines and the outer tube set gradually from inside to outside, the metallic network of pipelines are formed by composite wire braiding, the gold
The length for belonging to pipe network is less than said inner tube and the length of the outer tube, makes inner periphery and the institute of the first end of the catheter body
State the excircle overlap joint in second step face.
A kind of 2. mariages braided blood vessel angiography catheter according to claim 1, it is characterised in that：The catheter body it is interior
The hardness of pipe and outer tube is 60-70D, and the hardness of the changeover portion is 30~35D, and the hardness at the soft end is 5~7D.
A kind of 3. mariages braided blood vessel angiography catheter according to claim 1, it is characterised in that：The metallic network of pipelines uses
The ingot craft woven of composite wire 16 is formed, and the width of the composite wire is led for 0.07-0.09mm, the composite wire
Cheng Yuewei 5.1-5.3mm.
A kind of 4. mariages braided blood vessel angiography catheter according to claim 3, it is characterised in that：For weaving the metal
The composite wire of pipe network, the tensile strength of its monofilament is about 2000-3000MP.
A kind of 5. mariages braided blood vessel angiography catheter according to claim 1, it is characterised in that：The of the catheter body
Two ends are provided with handle.
A kind of 6. mariages braided blood vessel angiography catheter according to claim 1, it is characterised in that：It is said inner tube, described outer
Pipe, the changeover portion and the soft end, are made of polyether block amide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225882.0U CN207137135U (en) | 2017-03-09 | 2017-03-09 | A kind of mariages braided blood vessel angiography catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720225882.0U CN207137135U (en) | 2017-03-09 | 2017-03-09 | A kind of mariages braided blood vessel angiography catheter |
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| Publication Number | Publication Date |
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| CN207137135U true CN207137135U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720225882.0U Active CN207137135U (en) | 2017-03-09 | 2017-03-09 | A kind of mariages braided blood vessel angiography catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498957A (en) * | 2018-12-19 | 2019-03-22 | 深圳市业聚实业有限公司 | A kind of novel microtubular |
-
2017
- 2017-03-09 CN CN201720225882.0U patent/CN207137135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109498957A (en) * | 2018-12-19 | 2019-03-22 | 深圳市业聚实业有限公司 | A kind of novel microtubular |
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