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

Anti-adhesion pancreatic fistula preventing high-frequency electrotome operation electrode and preparation process

A technology of surgical electrodes and high-frequency electric knife, which is applied in the direction of surgery, surgical instrument parts, heating surgical instruments, etc., can solve the problems of weakened anti-adhesive effect, failure, and limited anti-tissue adhesion ability, etc., to achieve eschar compaction Enhanced performance, enhanced bonding strength, and prolonged durability

Inactive Publication Date: 2021-11-05
SOUTHWEST JIAOTONG UNIV
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The single high-melting point material metal tungsten and tungsten alloy materials have good ablation resistance but no hydrophobic effect. They are used as high-frequency electrotome electrode materials, and their anti-tissue adhesion ability is limited.
In addition, organic coatings such as polytetrafluoroethylene itself do not have the ability to resist arc ablation, and their anti-adhesion effects are weakened or even invalidated under the high-temperature conditions of high-frequency electric knife and tissue interface
[0007] A single super-hydrophobic microstructure does not have the ability to resist arc ablation, and is easily damaged and invalidated under high-temperature conditions, so it is not suitable for the surface of high-frequency electrosurgical electrodes
[0008] Due to the above problems, the existing technologies have not been widely used in clinical practice.

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
  • Anti-adhesion pancreatic fistula preventing high-frequency electrotome operation electrode and preparation process
  • Anti-adhesion pancreatic fistula preventing high-frequency electrotome operation electrode and preparation process
  • Anti-adhesion pancreatic fistula preventing high-frequency electrotome operation electrode and preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Figure 2a It is shown that the surgical electrode is a 304 stainless steel plate with a width of 2.35 mm and a thickness of 0.50 mm, and the surgical electrode is fixed on the handle of the high-frequency electrosurgical knife.

[0038] An anti-adhesion and anti-pancreatic fistula high-frequency electrosurgical electrode. After grinding and polishing, the surface of the 304 stainless steel surgical electrode with a roughness Ra≈0.1 μm has a periodic distribution of micro-nano super-hydrophobicity formed by soaking in an etchant. papillae, and the entire electrode surface is covered with a Ni-W-Cu tungsten alloy coating formed by electroplating solution treatment. Tungsten alloy coating is an alloy composed of metal tungsten as the base material and adding Ni, Cu, Fe, Mo and other elements. It has the advantages of high strength, high density, small thermal expansion coefficient, good corrosion resistance and arc ablation resistance, etc. And Ni, W, Cu three metals all...

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

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
contact angleaaaaaaaaaa
surface roughnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an anti-adhesion pancreatic fistula preventing high-frequency electrotome operation electrode. A micro-nano super-hydrophobic structure is prepared on the surface of a 304 stainless steel operation electrode through an etching method, and then a Ni-W-Cu tungsten alloy coating is prepared on the surface of the electrode. The operation electrode has the super-hydrophobic characteristic and the arc ablation resistance characteristic, hydrophobization of the surface of the electrode under the high-temperature working condition can be achieved, and therefore tissue adhesion is restrained, and the pancreatic fistula preventing effect is improved.

Description

technical field [0001] The invention relates to the technical field of high-frequency electrosurgical surgery, in particular to a high-frequency electrosurgical electrode for anti-adhesion and anti-pancreatic fistula and a preparation process thereof. Background technique [0002] High-frequency electric knife: It is an electrosurgical instrument that replaces traditional mechanical surgical instruments for tissue cutting. Its working principle is to separate the tissue through the high-frequency alternating current generated by the front-end electrode of the electrode pen and the huge heat generated when the tissue is in contact. And coagulation, so as to achieve the purpose of cutting and hemostasis. [0003] The high-frequency electrosurgical unit has excellent hemostatic effect and cutting efficiency, and electrodes with various shapes can meet different clinical needs. The advantages of low cost and easy operation make it have great potential for wide application and pr...

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): A61L31/08A61L31/14C23F1/28C25D3/56A61B18/14
CPCA61L31/088A61L31/14C23F1/28C25D3/56A61B18/14A61B2018/00059A61B2018/00125A61B2018/0013A61B2018/00589A61B2018/0063A61B2018/00482
Inventor 郑靖蒋烁杨丹刘文韬张浩周仲荣
Owner SOUTHWEST JIAOTONG UNIV
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