A flexible and bendable minimally invasive tungsten needle electrode scalpel and its production method

Abstract

The invention discloses a flexible bending minimally invasive tungsten needle electrode scalpel and a production method thereof. The cutter head of the flexible bending minimally invasive tungsten needle electrode scalpel is in a needle tip shape; an electrode diameter is of 1.5 to 2 mm; and the minimum needle tip diameter Phi is less than 20 [mu]m; the bleeding volume of an 8-cm incision surgeryof human body is less than 0.1 g; thermal burning loss is less than 2 g; knife edge adhesion is less than 0.5 g; the burning loss rate after a burning test at the current of 50 A for 20 min is less than 5 mg; and flexible bending of a needle bar is from 0 to 180 degrees. The flexible bendable minimally invasive tungsten needle electrode scalpel can realize fine cutting, less trauma, less blood loss, ablation resistance and durability, thereby providing a safe and reliable surgery electrode material for manufacturing high-end minimally invasive surgical instruments.

Description

technical field The invention relates to a minimally invasive tungsten needle electrode scalpel and a production method thereof, more particularly, to a flexible bendable minimally invasive tungsten needle electrode scalpel and a production method thereof. Background technique Due to the characteristics of the operation of the scalpel, the traditional surgery also causes a large trauma to the patient during the treatment, and has the disadvantages of large wound, heavy bleeding, long operation time, and slow recovery. Therefore, the application of minimally invasive surgical instruments gave birth to the development of "minimally invasive surgery". Compared with traditional surgery, minimally invasive surgery causes only minor trauma to patients and leaves only tiny scars after surgery. Compared with traditional surgery, it has the advantages of small wounds, less bleeding, shorter operation time, less postoperative pain, and faster recovery. High-frequency electric knife i...

AI Technical Summary

Problems solved by technology

However, the current high-frequency electric knife has a wide and blunt blade, low current concentration, large trauma to the body tissue, and more blood loss; it is easy to ablate and is not durable in long-term large-scale operations; at the same time, the needle cannot be flexibly bent , can not go deep into the nasal cavity and throat for tissue cutting

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