CN114432577A - Interventional medical catheter part welding method and medical catheter - Google Patents
Interventional medical catheter part welding method and medical catheter Download PDFInfo
- Publication number
- CN114432577A CN114432577A CN202210078794.8A CN202210078794A CN114432577A CN 114432577 A CN114432577 A CN 114432577A CN 202210078794 A CN202210078794 A CN 202210078794A CN 114432577 A CN114432577 A CN 114432577A
- Authority
- CN
- China
- Prior art keywords
- tip
- layer
- welding
- medical catheter
- 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
Images
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
- A61M25/10—Balloon catheters
- A61M25/1027—Making of balloon catheters
- A61M25/1036—Making parts for balloon catheter systems, e.g. shafts or distal ends
Abstract
The invention discloses a welding method of an intervention type medical catheter part and a medical catheter, wherein the catheter part comprises a catheter body and a guide end positioned at the far end of the catheter body, and the welding method comprises the following steps: providing at least two tip tubes which can be sleeved together; sleeving the first layer of tip pipes at the guide end of the pipe body, and fixing the first layer of tip pipes on the pipe body in a welding mode; sleeving the second layer of tip pipes on the first layer of tip pipes, and welding the second layer of tip pipes on the first layer of tip pipes; by parity of reasoning, a plurality of tip tubes are nested and welded on the tube body so as to form tip heads at the guide end of the tube body; by adopting the welding method, the guide end of the tube body is firmer and more durable, and can more easily penetrate through serious calcified lesions, thereby improving the success rate of the interventional operation.
Description
Technical Field
The invention relates to the technical field of medical catheters, in particular to an interventional medical catheter part welding method and a medical catheter.
Background
Percutaneous Coronary Intervention (PCI) can rapidly open infarcted coronary artery, improve myocardial blood supply, realize ischemic myocardial reperfusion, and effectively treat angina, myocardial infarction and acute coronary syndrome. As the most commonly used vascular reconstruction method, PCI has the advantages of high open rate, ideal effect and the like, and with the development of interventional therapy technology, the number of patients who select PCI therapy is increasing. However, coronary artery calcification lesion often runs through in various complicated lesions, and this can influence sacculus expansion pipe performance, for example, because most of sacculus and body in the current sacculus pipe are through welded fastening, and set up safeguard measure outside the welding point, thereby, when meetting calcification lesion, lead to sacculus distal end and body separation easily, and then cause the leakage of sacculus, increased coronary artery intervention treatment's degree of difficulty.
Disclosure of Invention
The present invention aims to solve the above technical problems and provide a welding method for an interventional medical catheter component and a medical catheter, which can effectively increase the sealing firmness of the distal end of a balloon so as to reduce the risk of leakage.
In order to achieve the above object, the present invention discloses a welding method for an interventional medical catheter component, the catheter component comprising a catheter body and a guide end located at a distal end of the catheter body, the welding method comprising the steps of:
providing at least two tip tubes which can be sleeved together;
sleeving a first layer of tip pipes at the guide end of the pipe body, and fixing the first layer of tip pipes on the pipe body in a welding mode;
sleeving a second layer of tip pipes on the first layer of tip pipes, and welding the second layer of tip pipes on the first layer of tip pipes;
and by parity of reasoning, a plurality of tip tubes are nested and welded on the tube body, so that tip ends are formed at the guide end of the tube body.
Preferably, the distal end of the tip is treated with a laser to fuse the first layer of tip tubes and the second layer of tip tubes together.
Preferably, when the first layer of tip tube and the second layer of tip tube are fused by laser, the distal end face of the tip is a smooth cambered surface.
Preferably, the outer diameter of the first layer of tip tubes is comparable to the inner diameter of the second layer of tip tubes.
Preferably, the material adopted by the tip tube is any one of polyether block polyamide, polyethylene, polytetrafluoroethylene, polypropylene, polyvinyl chloride and polyurethane.
Preferably, the first layer of tip tubes and the second layer of tip tubes are welded using laser or ultrasonic.
Preferably, when the laser welding process is adopted, the laser intensity is 200mw-1000mw, the spot size is 0.5mm-10mm, and the rotation speed of the tube body is 500-5000 rpm.
Preferably, when the ultrasonic welding process is adopted, the frequency range of the ultrasonic wave is 15 kHz-40 kHz, the air inlet pressure is 0.2 mPa-0.7 mPa, the welding time is 0.2S-2.0S, and the amplitude is 5-256 nm.
Preferably, the outer side of the tube body is provided with a balloon, and the balloon and the guide end of the tube body are welded together before the first layer of the tip tube is welded.
The invention also discloses a medical catheter which is any one of a micro catheter, a balloon catheter, a scored balloon catheter, a cutting balloon catheter and a catheter sheath, and the medical catheter comprises an intervention medical catheter part manufactured by the intervention medical catheter part welding method.
Compared with the prior art, the welding method of the intervention type medical catheter component is used for reinforcing the guide end at the far end of the catheter, during operation, at least two layers of tip pipes are sleeved on the guide end of the catheter body, and the tip pipes are welded with the catheter body, so that a tip is formed at the guide end of the catheter body, the guide end of the catheter body is firmer and more durable, the catheter body can more easily penetrate through serious calcified lesions, and the success rate of intervention type operations is improved.
Drawings
FIG. 1 is a schematic view of an intermediate state of a conduit weld in an embodiment of the present invention.
Fig. 2 is a schematic view of the welded state of the pipe in fig. 1.
Fig. 3 is a schematic view of the initial state of the balloon catheter welding process in an embodiment of the invention.
Fig. 4 is a schematic view of an intermediate state of a balloon catheter welding process in an embodiment of the invention.
Fig. 5 is a schematic view of a final state of a balloon catheter welding process in an embodiment of the invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The embodiment discloses a welding method of an interventional medical catheter component, as shown in fig. 1, the catheter component comprises a catheter body 10 and a leading end 100 located at the distal end of the catheter body, and the welding method in the embodiment comprises the following steps:
providing at least two tip tubes which can be sleeved together;
firstly, as shown in fig. 1, a first layer of tip tubes 20 is sleeved on a guide end 100 of a tube body 10, and the first layer of tip tubes 20 are fixed on the tube body 10 by welding;
then, as shown in fig. 2, the second layer of tip pipes 21 are sleeved on the first layer of tip pipes 20, and the second layer of tip pipes 21 are welded on the first layer of tip pipes 20;
by analogy, a plurality of tip tubes are nested welded to the tube body 10 to form a tip M at the leading end 100 of the tube body 10.
Specifically, the catheter component in the above embodiments may be used for any one of a microcatheter, a balloon catheter, a scoring balloon catheter, a cutting balloon catheter, a catheter sheath, and the like for interventional procedures.
Taking a balloon catheter as an example, as shown in fig. 3 to 5, a balloon 30 is disposed on the outer side of the tube body 10, and when the balloon catheter is processed by the above welding method, before the first layer of tip tube 20 is welded, the balloon 30 and the leading end 100 of the tube body 10 are welded together, then the first layer of tip tube 20 is sleeved and welded at the joint of the balloon 30 and the leading end 100, and then the second layer of tip tube 21 is welded. Therefore, the tip head M formed at the leading end 100 of the balloon catheter not only makes the leading end 100 of the tube 10 more firm and durable, but also effectively reduces the risk of leakage at the joint of the balloon 30 and the tube 10.
Further, the distal end of the tip M is processed by laser to fuse the first layer 20 and the second layer 21 of tip tubes, so as to further improve the firmness of the tip M and reduce the outer diameter of the tip M. Preferably, when the first layer of tip tube 20 and the second layer of tip tube 21 are fused by laser, the distal end surface of the tip M is a smooth arc surface, so that the catheter can smoothly advance in the blood vessel.
Furthermore, when selecting for use the tip pipe, make the external diameter of first layer tip pipe 20 and the internal diameter of second layer tip pipe 21 equal to make first layer tip pipe 20 and second layer tip pipe 21 be connected each other inseparabler, be convenient for fuse the welding.
For the tip tubes used in the above-described embodiments (the first layer tip tube 20 and the second layer tip tube 21), the material used is any of polyether block polyamide, polyethylene, polytetrafluoroethylene, polypropylene, polyvinyl chloride, polyurethane.
Further, the first layer of tip tubes 20 and the second layer of tip tubes 21 may be welded using a laser or ultrasonic. When the laser welding process is adopted, the laser intensity is 200mw-1000mw, the spot size is 0.5mm-10mm, and the rotation speed of the tube body 10 is 500-5000 rpm. When the ultrasonic welding process is adopted, the frequency range of the ultrasonic waves is 15 kHz-40 kHz, the air inlet pressure is 0.2 mPa-0.7 mPa, the welding time is 0.2S-2.0S, and the amplitude is 5-256 nm.
The invention also discloses a balloon catheter which comprises the interventional medical catheter part manufactured by the interventional medical catheter part welding method according to any embodiment and a balloon welded on the catheter body 10.
The invention also discloses a scoring balloon catheter which comprises the interventional medical catheter part manufactured by the interventional medical catheter part welding method according to any embodiment, a balloon welded on the catheter body 10 and scoring elements connected to the catheter body 10, wherein the scoring elements are arranged along the axial direction of the balloon, and the expansion of the balloon pushes the scoring elements to score blood vessel plaques.
The invention also discloses a cutting balloon catheter, which comprises the interventional medical catheter part manufactured by the interventional medical catheter part welding method according to any embodiment, a balloon welded on the catheter body 10 and a cutting element connected on the catheter body 10, wherein the cutting element is arranged along the radial direction of the balloon, and the expansion of the balloon pushes the cutting element to cut blood vessel plaques.
In summary, in the catheter welded by the above method, at least two layers of tip tubes are sleeved and welded at the guiding end 100 of the catheter, so that a tip M is formed at the guiding end 100, and the guiding end 100 of the catheter is firmer, more durable, and more easily penetrates through severe calcified lesions, thereby improving the success rate of interventional surgery.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. A method of welding an interventional medical catheter component comprising a tube body and a guide tip at a distal end of the tube body, the method comprising the steps of:
providing at least two tip tubes which can be sleeved together;
sleeving a first layer of tip pipes at the guide end of the pipe body, and fixing the first layer of tip pipes on the pipe body in a welding mode;
sleeving a second layer of tip pipes on the first layer of tip pipes, and welding the second layer of tip pipes on the first layer of tip pipes;
and by parity of reasoning, a plurality of tip tubes are nested and welded on the tube body, so that tip ends are formed at the guide end of the tube body.
2. The method of welding interventional medical catheter components of claim 1, wherein the distal end of the tip is treated with a laser to fuse the first layer of tip tubing and the second layer of tip tubing together.
3. The method of claim 2, wherein the first layer of tip tube and the second layer of tip tube are laser fused such that a distal end face of the tip is a smooth curved surface.
4. The method of welding interventional medical catheter components of claim 1, wherein an outer diameter of the first layer of tip tubing corresponds to an inner diameter of the second layer of tip tubing.
5. The method of claim 1, wherein the tip tube is made of any one of polyether block polyamide, polyethylene, polytetrafluoroethylene, polypropylene, polyvinyl chloride, and polyurethane.
6. The method of welding interventional medical catheter components of claim 1, wherein the welding of the first layer of tip tubing and the second layer of tip tubing is performed using a laser or ultrasonic.
7. The method for welding interventional medical catheter components as defined in claim 6, wherein when a laser welding process is used, the laser intensity is 200mw-1000mw, the spot size is 0.5mm-10mm, and the rotation speed of the tube body is 500-5000 rpm.
8. The welding method of interventional medical catheter parts according to claim 6, wherein when an ultrasonic welding process is used, the frequency range of the ultrasonic waves is 15kHz to 40kHz, the intake pressure is 0.2mPa to 0.7mPa, the welding time is 0.2S to 2.0S, and the amplitude is 5 to 256 nm.
9. The method of claim 1, wherein the tube body is provided with a balloon on the outside, and the balloon is welded to the leading end of the tube body before the first layer of tip tube is welded.
10. A medical catheter which is any one of a microcatheter, a balloon catheter, a scored balloon catheter, a cutting balloon catheter, a catheter sheath, wherein the medical catheter comprises an interventional medical catheter component made by the interventional medical catheter component welding method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078794.8A CN114432577A (en) | 2022-01-24 | 2022-01-24 | Interventional medical catheter part welding method and medical catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210078794.8A CN114432577A (en) | 2022-01-24 | 2022-01-24 | Interventional medical catheter part welding method and medical catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114432577A true CN114432577A (en) | 2022-05-06 |
Family
ID=81369032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210078794.8A Pending CN114432577A (en) | 2022-01-24 | 2022-01-24 | Interventional medical catheter part welding method and medical catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114432577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116370817A (en) * | 2023-03-22 | 2023-07-04 | 上海玮启医疗器械有限公司 | Medical grade pump blood conduit assembly and suction channel thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055411A (en) * | 2013-01-25 | 2013-04-24 | 业聚医疗器械(深圳)有限公司 | Balloon catheter and manufacturing method thereof |
| CN108387982A (en) * | 2018-02-23 | 2018-08-10 | 烽火通信科技股份有限公司 | A kind of Full-dry optical cable and its manufacturing method |
| CN209026333U (en) * | 2018-07-20 | 2019-06-25 | 泉州市盛国贸易有限公司 | A kind of anticorrosion petroleum pipeline |
| CN110621370A (en) * | 2017-03-24 | 2019-12-27 | 波利医疗有限公司 | Fluid administration medical device and intravenous catheter assembly |
| CN113017952A (en) * | 2021-05-26 | 2021-06-25 | 上海微创心脉医疗科技(集团)股份有限公司 | Branch sheath and delivery system |
| CN113423453A (en) * | 2019-02-25 | 2021-09-21 | 美敦力瓦斯科尔勒公司 | Medical balloon assembly and method of manufacturing the same |
| CN214912428U (en) * | 2020-09-17 | 2021-11-30 | 北京市凯泽斯商贸有限公司 | Pulmonary artery balloon dilatation catheter |
-
2022
- 2022-01-24 CN CN202210078794.8A patent/CN114432577A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055411A (en) * | 2013-01-25 | 2013-04-24 | 业聚医疗器械(深圳)有限公司 | Balloon catheter and manufacturing method thereof |
| CN110621370A (en) * | 2017-03-24 | 2019-12-27 | 波利医疗有限公司 | Fluid administration medical device and intravenous catheter assembly |
| CN108387982A (en) * | 2018-02-23 | 2018-08-10 | 烽火通信科技股份有限公司 | A kind of Full-dry optical cable and its manufacturing method |
| CN209026333U (en) * | 2018-07-20 | 2019-06-25 | 泉州市盛国贸易有限公司 | A kind of anticorrosion petroleum pipeline |
| CN113423453A (en) * | 2019-02-25 | 2021-09-21 | 美敦力瓦斯科尔勒公司 | Medical balloon assembly and method of manufacturing the same |
| CN214912428U (en) * | 2020-09-17 | 2021-11-30 | 北京市凯泽斯商贸有限公司 | Pulmonary artery balloon dilatation catheter |
| CN113017952A (en) * | 2021-05-26 | 2021-06-25 | 上海微创心脉医疗科技(集团)股份有限公司 | Branch sheath and delivery system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116370817A (en) * | 2023-03-22 | 2023-07-04 | 上海玮启医疗器械有限公司 | Medical grade pump blood conduit assembly and suction channel thereof |
| CN116370817B (en) * | 2023-03-22 | 2024-01-09 | 上海玮启医疗器械有限公司 | Medical grade pump blood conduit assembly and suction channel thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4786033B2 (en) | Catheter with improved adhesive area | |
| JP2935574B2 (en) | How to attach a soft tip to a thin-walled catheter | |
| EP2160138B1 (en) | System and apparatus for opening an occluded lesion | |
| JP2735388B2 (en) | Dilatation catheter with flexible bumper tip | |
| EP2698119B1 (en) | Apparatus for clot disruption and evacuation | |
| CN102500041B (en) | Balloon dilatation catheter | |
| JPH02503276A (en) | Balloon angioplasty catheter with Limason geometry and its manufacturing method | |
| US5951513A (en) | Balloon catheter having non-bonded integral balloon and methods for its manufacture | |
| JP6706888B2 (en) | Balloon catheter | |
| JPH03207376A (en) | Expandable cathetel | |
| CN214912428U (en) | Pulmonary artery balloon dilatation catheter | |
| US20130184643A1 (en) | Balloon Catheter | |
| CN114432577A (en) | Interventional medical catheter part welding method and medical catheter | |
| JP2008110132A (en) | Catheter | |
| JP4914281B2 (en) | catheter | |
| JP2003175110A (en) | Balloon catheter and method for manufacturing the same | |
| CN112023230A (en) | Pulmonary artery balloon dilatation catheter | |
| WO2024037149A1 (en) | Cutting balloon catheter with concealed blades | |
| US6403011B1 (en) | Method of tip forming with more improved tapered and lower tip entry profile | |
| JP2008264120A (en) | Catheter with pressing property | |
| JP2002291900A (en) | Medical tool and method for manufacturing the same | |
| JP2008259695A (en) | Guide wire port manufacturing method | |
| US7994449B2 (en) | Square-wave laser bonding | |
| JP2006043480A (en) | Balloon catheter and production method of balloon catheter | |
| JP2024058700A (en) | catheter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |