CN203329162U - Guiding catheter - Google Patents
Guiding catheter Download PDFInfo
- Publication number
- CN203329162U CN203329162U CN201320388440XU CN201320388440U CN203329162U CN 203329162 U CN203329162 U CN 203329162U CN 201320388440X U CN201320388440X U CN 201320388440XU CN 201320388440 U CN201320388440 U CN 201320388440U CN 203329162 U CN203329162 U CN 203329162U
- Authority
- CN
- China
- Prior art keywords
- layer
- guiding catheter
- transmitting layer
- braiding
- plastic pipe
- 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.)
- Expired - Lifetime
Links
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 4
- 238000009954 braiding Methods 0.000 claims description 21
- 239000000314 lubricant Substances 0.000 claims description 3
- 229950000845 politef Drugs 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Images
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to a guiding catheter. The guide catheter is characterized by being divided into four layers sequentially comprising the inner layer plastic pipe, the two woven transmitting layers and the outer plastic pipe from inside to outside. The inner layer plastic pipe (1) is made of flexible materials. The inner layer plastic pipe uses a PTFE lubricating coating, so that the inner layer plastic pipe has the smooth inner surface to provide high inner cavity lubrication. The low-friction inner surface can facilitate transportation of other catheters. The first transmitting layer tightly covers a pipe portion member, the second transmitting layer tightly covers the first transmitting layer, the first transmitting layer is of a round woven structure, the first transmitting layer is made of stainless steel wires, the second transmitting layer is of a flat woven structure, and the second transmitting layer is made of fibers. The two woven layers have certain strength and density. A more effective torque transmitting layer can be formed by the combination of different materials in different shapes. The guiding catheter has the advantages of being not prone to being knotted, preventing the other catheters from being folded in the body, facilitating operation and the like. In addition the torque of the guiding catheter is effectively enhanced.
Description
Affiliated technical field
This utility model relates to medical instruments field, particularly a kind of guiding catheter.
Technical background
Notoriously, guiding catheter need have enough torsional forces, guarantees when the doctor operates to be convenient to can freely handle in long and tortuous blood vessel access.In the prior art, increase a moment of torsion transfer layer by the tube wall at guiding catheter and realize catheter torque power, but the method can not realize guiding catheter fully and freely turn round the effect of control in human vas, in the time of even can occurring in catheter proximal end and apply moment of torsion, easily occur folding.
The utility model content
This utility model is for solving above-mentioned technical disadvantages, this utility model by the following technical solutions: guiding catheter is divided into four layers.The all constituents material be used to form in guiding catheter all has good biology and blood compatibility, and inner layer plastic tube can in use directly contact with blood usually with outer layer plastic tube, and this point is particularly important.Outer layer plastic tube is the Special polyethylene plastics, inner layer plastic tube is the PTFE lubricant coating, and centre is two transfer layers that formed by the unlike material braiding, and braiding structure is particularly suitable for the moment of torsion transfer layer, because they are quite pliable and tough, there is good torque transmission capacity.Wherein the ground floor transfer layer covers on pipe section member tightly, and second layer transfer layer tightly covers on the ground floor transfer layer.The ground floor transfer layer adopts circular braiding structure, and material is stainless steel silk, and second layer transfer layer adopts flat braiding structure, adopts cellosilk as material.Flat braiding structure successful, because they have larger moment of torsion bearing capacity, and be difficult for kink.By changing the density of braiding structure, the moment of torsion transmission characteristic with pliability braided material can further improve.Two-layer braid adopts certain intensity, density braiding to form, and the combination of difformity unlike material has formed more effective moment of torsion transfer layer.
This utility model has solved the defect existed in the background technology, effectively strengthens the torsional forces of guiding catheter, prevents that conduit is folding in vivo, is convenient to operation technique.
The accompanying drawing explanation
Accompanying drawing is the cutaway view of a kind of guiding catheter of this utility model.
Wherein: 1 inner layer plastic tube, 2 ground floor braiding transfer layers, 3 second layer braiding transfer layers, 4 outer layer plastic tubes.
Concrete implementing measure
Below in conjunction with accompanying drawing and the specific embodiment, this utility model is described in further detail:
In accompanying drawing, guiding catheter pipe diameter tolerance is 0.05mm, is followed successively by from inside to outside inner layer plastic tube, 2 layers of braiding transfer layer, outer layer plastic tube.Inner layer plastic tube 1 is made by flexible material, adopts the PTFE lubricant coating, makes it have smooth inner surface, lubricates convenient other conduits of carrying of the inner surface of this low friction so that high inner chamber to be provided.
In accompanying drawing, it is that material has good biology and blood compatibility that outer layer plastic tube 4 adopts politef.
In accompanying drawing, ground floor braiding transfer layer 2 covers on pipe section member tightly, adopts circular braiding structure, and material is stainless steel silk, and diameter specifications is preferably 0.025mm.Second layer braiding transfer layer 3 tightly is wrapped on ground floor braiding transfer layer 2, adopts flat braiding structure, adopts cellosilk as material, and specification is preferably 0.025mm * 0.0125mm.Two-layer braid weaves separately, and count is every millimeter 1 to 4 lattice, and hardness is 55D-72D.
Claims (4)
1. a guiding catheter, is characterized in that, the pipe diameter tolerance is 0.05mm, is followed successively by from inside to outside inner layer plastic tube, 2 layers of braiding transfer layer, outer layer plastic tube.
2. guiding catheter according to claim 1, is characterized in that, inner layer plastic tube is made by flexible material, adopts the PTFE lubricant coating.
3. guiding catheter according to claim 1, is characterized in that, it is material that outer layer plastic tube 4 adopts politef.
4. guiding catheter according to claim 1, is characterized in that, ground floor braiding transfer layer 2 covers on pipe section member tightly, adopts circular braiding structure, and material is stainless steel silk, and diameter specifications is preferably 0.025mm.Second layer braiding transfer layer 3 tightly is wrapped on ground floor braiding transfer layer 2, adopts flat braiding structure, adopts cellosilk as material, specification is preferably 0.025mm * 0.0125mm, two-layer braid weaves separately, and count is every millimeter 1 to 4 lattice, and hardness is 55D-72D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320388440XU CN203329162U (en) | 2013-06-25 | 2013-06-25 | Guiding catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320388440XU CN203329162U (en) | 2013-06-25 | 2013-06-25 | Guiding catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203329162U true CN203329162U (en) | 2013-12-11 |
Family
ID=49697865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320388440XU Expired - Lifetime CN203329162U (en) | 2013-06-25 | 2013-06-25 | Guiding catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203329162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430913A (en) * | 2017-03-02 | 2019-11-08 | 柯惠有限合伙公司 | Flexible tip conduit |
| CN110448736A (en) * | 2019-08-19 | 2019-11-15 | 广东亿康医疗器械有限公司 | A kind of latex catheter surface treatment method |
-
2013
- 2013-06-25 CN CN201320388440XU patent/CN203329162U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430913A (en) * | 2017-03-02 | 2019-11-08 | 柯惠有限合伙公司 | Flexible tip conduit |
| CN110430913B (en) * | 2017-03-02 | 2022-04-08 | 柯惠有限合伙公司 | Flexible tip catheter |
| US11596768B2 (en) | 2017-03-02 | 2023-03-07 | Covidien Lp | Flexible tip catheter |
| CN110448736A (en) * | 2019-08-19 | 2019-11-15 | 广东亿康医疗器械有限公司 | A kind of latex catheter surface treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518172, B, block 1, Tian Xin Digital Town, Longcheng Road, Longcheng Road, Longgang District, Shenzhen, Guangdong, 304-A Patentee after: SHENZHEN KAISITE MEDICAL TECHNOLOGY CO.,LTD. Address before: 518172 Guangdong Province, Shenzhen city Longgang District Center City Tefalongfei Industrial Park building B1 on the third floor of the West Patentee before: PREC MEDICAL PLASTICS Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SHENZHEN KAISITE MEDICAL TECHNOLOGY CO.,LTD. Person in charge of patentsThe principal of patent Document name: Notice of Termination of Patent Rights |