CN107648721A - A kind of anti-folding guiding catheter of high flow capacity - Google Patents
A kind of anti-folding guiding catheter of high flow capacity Download PDFInfo
- Publication number
- CN107648721A CN107648721A CN201710796750.8A CN201710796750A CN107648721A CN 107648721 A CN107648721 A CN 107648721A CN 201710796750 A CN201710796750 A CN 201710796750A CN 107648721 A CN107648721 A CN 107648721A
- Authority
- CN
- China
- Prior art keywords
- main pipe
- guidewire lumen
- high flow
- seeker
- guiding catheter
- Prior art date
- 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.)
- Pending
Links
- 230000002742 anti-folding effect Effects 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 5
- 210000004204 blood vessel Anatomy 0.000 abstract description 4
- 210000001951 dura mater Anatomy 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000451 tissue damage Effects 0.000 description 3
- 231100000827 tissue damage Toxicity 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 238000001949 anaesthesia Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present invention discloses a kind of anti-folding guiding catheter of high flow capacity, including main pipe, fluid injection chamber is opened up in the main pipe, the outer front end of the main pipe is obliquely installed seeker, guidewire lumen is opened up in the seeker, the guidewire lumen is extended to inside main pipe, and the guidewire lumen inside main pipe is helical structure, it is wrapped in the outside of fluid injection chamber, the end of the guidewire lumen extends to the rearward end of main pipe, and the endcapped of the guidewire lumen, configuration seal wire in the guidewire lumen, the leading section of the main pipe is fixedly connected with push type split lock-on connection, the rearward end fixed setting liqiud outlet head of the main pipe.The present invention is reasonable in design, can increase the overall flexibility and flexibility of main pipe by the guidewire lumen cooperation seal wire of helical structure, variable to roundabout course, reduces the damage to tissue or blood vessel, effectively solves the problems such as discounting, fracture, small flow.
Description
Technical field
The present invention relates to medical catheter technical field, and in particular to a kind of anti-folding guiding catheter of high flow capacity.
Background technology
In minimally-invasive treatment, particularly in blood vessel intervention or anesthesia procedures, the high flow capacity of conduit, the anti-folding of catheter,
Also to possess certain flexibility prevents from breaking to vascular wall or tissue damage, and guide control of the conduit during traveling, conduit
Resistance to spalling etc. is required for very high requirement, and it is must solve this problem on guide-tube structure to evade these risks.
Just by taking caudal anaesthesia as an example, the basic outside dimension of conduit typically in the range of 0.7MM-1.1MM, conduit
Flow is in 4-10ml/min.10N-15N is wanted in the fracture strength requirement of conduit.So these three requirements are the problem of comparing contradiction,
Catheter outer diameter can increase the intensity of conduit, but flow can not meet again in the case of constant by increasing wall thickness.Meet
Traffic intensity can not meet intensity again.Particularly present way is in order to which decoction flows out, and is rushed on so very thin conduit
Multiple perforation, this is undoubtedly makes the matter worse to the intensity of conduit.And tiny aperture easily blocks, more medical treatment is brought
Risk.It is typically relatively more using modification of nylon PEBAX for current production material, but great number of issues is equally existed, but be
Make the conveying of conduit smooth, the general material for using more than 65D, it is well known that high polymer material is being produced into cavity
After conduit, the easier discounting of the higher material of hardness.This undoubtedly brings risk, and the hardware thing that rigidity is stronger to operation again, holds
Easily damaged to patient tissue or dura mater, to patient again with secondary damage, and the combination of different patients or dura mater can bear
Intensity is different.In line with excessively numerous risks and hidden danger to more than, we are fully able to change and solve mesh by the application
Preceding existing great number of issues.
The content of the invention
It is an object of the invention to provide a kind of anti-folding guiding catheter of high flow capacity, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme：A kind of anti-folding guiding catheter of high flow capacity, including supervisor
Body, fluid injection chamber is opened up in the main pipe, its innovative point is：The outer front end of the main pipe is obliquely installed seeker, institute
State and guidewire lumen is opened up in seeker, the guidewire lumen is extended to inside main pipe, and the guidewire lumen inside main pipe
For helical structure, the outside of fluid injection chamber is wrapped in, the end of the guidewire lumen extends to the rearward end of main pipe, and the guidewire lumen
Endcapped, configuration seal wire, the leading section of the main pipe are fixedly connected with push type split lock-on connection in the guidewire lumen,
The rearward end fixed setting liqiud outlet head of the main pipe.
Further, the seal wire is from left to right successively by needle cap, conical head and groups of metal filaments with toughness into described
The length of wire is consistent with the length of guidewire lumen, the quantity at least two of the seal wire, and the material of wire is at least
Aluminium alloy and stainless steel.
Further, the seeker also opens up mounting groove, the installation with being responsible for body by integral forming in the seeker
The conical head of groove and seal wire is interference fitted.
Further, the liqiud outlet head includes pendular ring and round end, it is described go out pendular ring by several laterally set
The elastic connection silk of arc structure forms, and the gap between the elastic connection silk is liquid outlet, and the diameter of the round end is less than master
The external diameter of body, the round end are stainless steel, it is described go out pendular ring and main pipe and round end junction pass through round-corner transition.
Further, several developing rings equidistantly arranged are fixedly installed on the main pipe.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the present invention is reasonable in design, seal wire is coordinated to increase the overall flexibility of main pipe and soft by the guidewire lumen of helical structure
It is soft, it is variable to roundabout course, the damage to tissue or blood vessel is reduced, it is small effectively to solve discounting, fracture, flow
The problems such as；
2. the seal wire in the present invention uses different materials, there is provided different toughness and hardness, not only effectively solves supervisor
The axial direction of body, which is advanced, to be guided, and the seal wire of unlike material can be selected according to the actual conditions of patient, prevents the group to patient
Close or dura mater damages, while the overall flexibility and flexibility of main pipe can be improved；
3. going out design of the pendular ring as a result of indent on the liqiud outlet head in the present invention, then pass through elastic connection silk, liqiud outlet head
With good toughness and elasticity, solve the freedom and flexibility ratio for changing stroke during main pipe's traveling, and elastic connection silk it
Between strip structure liquid outlet, solve because tiny aperture blockage problem；
4. the round end in the present invention is circular stainless steel tap, effectively solves main pipe and advance to tissue damage or the wind such as puncture
Dangerous problem；
5. developing ring in the present invention can improve work effect in medical worker's length used in clear and definite conduit when in use
Rate；
6. the present invention is standby with split type pressing lock-on connection, effective convenient clinical.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of seal wire in the present invention；
Fig. 3 is the structural representation of seeker in the present invention；
Fig. 4 is the structural representation of liqiud outlet head in the present invention；
Fig. 5 is the sectional view of A in Fig. 1；
Fig. 6 is the sectional view of B in Fig. 1.
In figure：1 main pipe, 11 fluid injection chambers, 12 seekers, 13 guidewire lumens, 14 mounting grooves, 2 seal wires, 21 needle caps, 22 tapers
Head, 23 wires, 3 push type split lock-on connections, 4 liqiud outlet heads, 41 go out pendular ring, 411 elastic connection silks, 412 liquid outlets, 42 circles
Head, 5 developing rings.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1, Fig. 5, Fig. 6, a kind of anti-folding guiding catheter of high flow capacity, including main pipe 1 are referred to, note is opened up in main pipe 1
Sap cavity 11, the outer front end of main pipe 1 are obliquely installed seeker 12, guidewire lumen 13 are opened up in seeker 12, guidewire lumen 13 is always
Extend to inside main pipe 1, and the guidewire lumen 13 inside main pipe 1 is helical structure, is wrapped in the outside of fluid injection chamber 11,
The end of guidewire lumen 13 extends to the rearward end of main pipe 1, and the endcapped of the guidewire lumen 13, and seal wire is configured in guidewire lumen 13
2, the leading section of main pipe 1 is fixedly connected with push type split lock-on connection 3, the rearward end fixed setting liqiud outlet head 4 of main pipe 1.
The seal wire 2 of unlike material is filled in the guidewire lumen 13 of helical structure, using the teaching of the invention it is possible to provide different toughness and flexibility, meet different trouble
The demand of person, it is variable to roundabout course, the damage to tissue or blood vessel is reduced, effectively solves discounting, fracture, stream
Measure the problems such as small；Push type split lock-on connection 3 avoid doctor be expert at centesis when because the weight of the near-end of main pipe 1
Cause catheter manipulation inconvenient, it is flexible to reduce, it is therefore an objective to facilitate doctor.
Referring to Fig. 2, seal wire 2 forms by needle cap 21, conical head 22 and with the wire 23 of toughness successively from left to right,
The length of wire 23 is consistent with the length of guidewire lumen 13, the quantity at least two of seal wire 2, and the material of wire 23 is at least
For aluminium alloy and stainless steel.The selection of the material of wire 23 can be selected according to metallic character, be not limited solely to aluminium alloy
With both materials of stainless steel.
Referring to Fig. 3, seeker 12 is integrally formed with main pipe 1, mounting groove 14, mounting groove 14 are also opened up in seeker 12
It is interference fitted with the conical head 22 of seal wire 2.
Preferably, by conical head 22, directly interference fit is mounted and dismounted seal wire 2 with mounting groove 14, quickly
It is convenient, improve the efficiency in work.
Referring to Fig. 4, liqiud outlet head 4 includes pendular ring 41 and round end 42, go out pendular ring 41 by several laterally set
The elastic connection silk 411 of arc structure forms, and the gap between elastic connection silk 411 is liquid outlet 412, and the diameter of round end 42 is less than
The external diameter of main pipe 1, round end 42 are stainless steel, go out pendular ring 41 and pass through round-corner transition with main pipe 1 and the junction of round end 42.
Preferably, go out pendular ring 41 forms concave inward structure as a result of elastic connection silk 411, so with good
Toughness, change the freedom and flexibility ratio of stroke when solving the traveling of main pipe 1, and change what is punched on in-situ conduit completely
Method, avoid the tensile strength after tiny body punching from can not meeting problem, while also solve because tiny aperture plug-hole is asked
Topic, preferably annular goes out liquid, solves original part and goes out the uneven of liquid, while also alleviates the problem of flow velocity is slow.
Referring to Fig. 1, several developing rings 5 equidistantly arranged are fixedly installed on main pipe 1.The design of developing ring 5, purpose
It is to allow medical worker to specify the length that main pipe 1 uses in operation.
The present invention can be realized in row interposing catheter art, conduit does not give a discount completely, flow height, the guide of course, head
The enhancing of portion flexibility ratio, tissue damage are small, convenient use while greatly reduce risk.As can be seen here, the present invention is to pacify completely
It is complete reliable.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of anti-folding guiding catheter of high flow capacity, including main pipe, fluid injection chamber is opened up in the main pipe, it is characterised in that：Institute
The outer front end for stating main pipe is obliquely installed seeker, and guidewire lumen is opened up in the seeker, and the guidewire lumen extends to
Inside main pipe, and the guidewire lumen inside main pipe is helical structure, is wrapped in the outside of fluid injection chamber, the guidewire lumen
End extends to the rearward end of main pipe, and the endcapped of the guidewire lumen, and seal wire, the main pipe are configured in the guidewire lumen
Leading section be fixedly connected with push type split lock-on connection, the rearward end fixed setting liqiud outlet head of the main pipe.
A kind of 2. anti-folding guiding catheter of high flow capacity according to claim 1, it is characterised in that：The seal wire from left to right according to
It is secondary by needle cap, conical head and with toughness groups of metal filaments into the length of the wire is consistent with the length of guidewire lumen, described
The quantity at least two of seal wire, and the material of wire is at least aluminium alloy and stainless steel.
A kind of 3. anti-folding guiding catheter of high flow capacity according to claim 1, it is characterised in that：The seeker and main pipe
It is integrally formed, mounting groove, the conical head interference fit of the mounting groove and seal wire is also opened up in the seeker.
A kind of 4. anti-folding guiding catheter of high flow capacity according to claim 1, it is characterised in that：The liqiud outlet head includes liquid
Ring and round end, it is described go out pendular ring be made up of the elastic connection silk of several the inner arc structure laterally set, the elastic connection
Gap between silk is liquid outlet, and the diameter of the round end is less than the external diameter of main pipe, and the round end is stainless steel, described
Go out pendular ring and pass through round-corner transition with main pipe and round end junction.
A kind of 5. anti-folding guiding catheter of high flow capacity according to claim 1, it is characterised in that：Fixation is set on the main pipe
Put several developing rings equidistantly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796750.8A CN107648721A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-folding guiding catheter of high flow capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710796750.8A CN107648721A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-folding guiding catheter of high flow capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107648721A true CN107648721A (en) | 2018-02-02 |
Family
ID=61128168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710796750.8A Pending CN107648721A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-folding guiding catheter of high flow capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107648721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714272A (en) * | 2018-06-26 | 2018-10-30 | 华中科技大学同济医学院附属协和医院 | The special injection-tube of alveolar surfactant |
| CN113144393A (en) * | 2021-05-11 | 2021-07-23 | 深圳麦普奇医疗科技有限公司 | Adjustable common type trans-radial coronary angiography catheter |
| CN115091688A (en) * | 2022-06-07 | 2022-09-23 | 安徽杰蓝特新材料有限公司 | End-capping equipment for producing composite pipes |
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| CN106730243A (en) * | 2017-01-04 | 2017-05-31 | 临沂市兴华医用器材有限公司 | A kind of spiral wire reinforced anesthetic conduit of flexible antisitic defect and preparation method thereof |
| CN208301962U (en) * | 2017-09-06 | 2019-01-01 | 南通伊诺精密塑胶导管有限公司 | A kind of anti-folding guiding catheter of high flow capacity |
-
2017
- 2017-09-06 CN CN201710796750.8A patent/CN107648721A/en active Pending
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| US6733473B1 (en) * | 1991-04-05 | 2004-05-11 | Boston Scientific Corporation | Adjustably stiffenable convertible catheter assembly |
| CN2239822Y (en) * | 1995-12-30 | 1996-11-13 | 郭洪禹 | Introducer of urinary catheter |
| CN2292570Y (en) * | 1996-11-15 | 1998-09-30 | 郑开泰 | Heart drainage tube |
| US20070088323A1 (en) * | 2003-01-17 | 2007-04-19 | Campbell Carey V | Catheter assembly |
| US20070299404A1 (en) * | 2004-10-19 | 2007-12-27 | Osamu Katoh | Reagent Injection Device |
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| CN208301962U (en) * | 2017-09-06 | 2019-01-01 | 南通伊诺精密塑胶导管有限公司 | A kind of anti-folding guiding catheter of high flow capacity |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714272A (en) * | 2018-06-26 | 2018-10-30 | 华中科技大学同济医学院附属协和医院 | The special injection-tube of alveolar surfactant |
| CN113144393A (en) * | 2021-05-11 | 2021-07-23 | 深圳麦普奇医疗科技有限公司 | Adjustable common type trans-radial coronary angiography catheter |
| CN115091688A (en) * | 2022-06-07 | 2022-09-23 | 安徽杰蓝特新材料有限公司 | End-capping equipment for producing composite pipes |
| CN115091688B (en) * | 2022-06-07 | 2024-02-06 | 安徽杰蓝特新材料有限公司 | End sealing equipment for producing composite pipe |
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