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

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...

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.

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