Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Guiding catheter

A catheter and catheter head technology, applied in the field of medical electrode catheters, can solve the problems of low catheter placement rate and small contact force, and achieve the effect of increasing success rate, increasing placement rate and adhering force, and reducing time and risk

Active Publication Date: 2017-01-04
上海鸿电医疗科技有限公司
View PDF14 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such products are not based on the reality of renal artery ablation surgery, and cannot meet the relevant needs, resulting in a low catheter placement rate and small contact force

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Guiding catheter
  • Guiding catheter
  • Guiding catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 It is a schematic diagram of the guiding catheter used in the embodiment of the present invention for ablation in the kidney; figure 2 It is a structural schematic diagram of the guide catheter according to the embodiment of the present invention;

[0048] See figure 1 , Renal artery ablation can be used to treat refractory hypertension. It mainly ablates the sympathetic nerve on the renal artery, blocks the sympathetic nerve, and lowers the blood pressure of hypertensive patients. figure 1 It is a schematic diagram of the guide catheter used for ablation in the kidney. Firstly, the femoral artery is punctured, and the guide wire is passed through. 2 The hemostatic valve 213 at the proximal end is inserted into the renal artery ablation catheter 1 and enters the renal artery 3 for ablation.

[0049] See figure 2 and image 3 , The guiding catheter provided in this embodiment is composed of a catheter tip 25 , a fixed curved section 24 , a deflectable sec...

Embodiment 2

[0059] Figure 6 It is a structural schematic diagram of a guide catheter according to another embodiment of the present invention; Figure 7 It is a schematic diagram of various curved shapes formed at the distal end of the guide catheter according to another embodiment of the present invention.

[0060] In the previous embodiments, the fixed curved section 24 is located between the catheter tip 25 and the deflectable section 23 , in this embodiment, the fixed curved section 24 is located between the deflectable section 23 and the catheter main body 22 . The length of the fixed curved section 24 is between 50-400mm, preferably 150mm, and the length of the deflectable section is between 50-200mm, more preferably 50-100mm. The structure of this embodiment is basically the same as image 3 Similarly, after the pipe is processed by Reflow technology, the fixed bending of the fixed bending die is performed. Figure 7 It is a schematic diagram of the curved shape of this embodim...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a guiding catheter which comprises a catheter body and a catheter handle. The catheter body comprises a catheter head end, a catheter deflectable section, a fixed bent section and a main catheter body. The catheter handle is connected with the catheter body. A stay wire is arranged in the catheter body. A first rotary knob and a second rotary knob are arranged on the catheter handle. The first rotary knob is connected with the catheter body and used for controlling the catheter body to rotate around the central axis of the main catheter body. The second rotary knob is connected with the stay wire and used for controlling deflection of the catheter deflectable section. The guiding catheter is provided with a fixed bend and an adjustable bend, can obtain various bent shapes according to clinical requirements, so that the adjustable bend can be adjusted by controlling the handle, the catheter body can made to freely rotate around the central axis, the arrival rate and attaching force of the catheter in renal artery ablation can be improved, the operation success rate is increased, operation time is shortened, and risks are reduced.

Description

technical field [0001] The invention relates to a medical electrode catheter, in particular to a guiding catheter. Background technique [0002] Percutaneous renal artery ablation can be used to treat resistant hypertension. In this operation, a radiofrequency ablation catheter is introduced percutaneously to reach the renal artery for ablation, and the sympathetic nerve on the renal artery is ablated and destroyed, thereby reducing blood pressure. The method of radiofrequency ablation catheter alone has many disadvantages, such as long time for the catheter to be in place, low rate of ablation target site in place, small contact force with the tissue, complicated bending control, and difficulty in forming an effective ablation lesion. [0003] These problems can be well solved by introducing a guiding catheter, which can reduce the operation time and improve the safety and effectiveness of the operation. The guide catheters on the market are generally used for intracardia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61M25/0147A61M25/0136A61M25/0662
Inventor 王铮张清淳梁波孙杰孙毅勇谭家宏
Owner 上海鸿电医疗科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com