Hot-melting welding cutter with function of enhancing blood vessel sealing

Abstract

The invention discloses a hot-melting welding cutter with a function of enhancing blood vessel sealing. The hot-melting welding cutter comprises a first forceps holder working end provided with an electric heating device, a corresponding second forceps holder working end, a hinge part, a connecting rod, a control handle and a power supply, wherein an exposed tissue cutting electric heating wire is arranged in the center of the working surface of the first forceps holder working end along the longitudinal axis; blood vessel sealing electric heating wires with heat transfer sleeves are arranged on two sides of the tissue cutting electric heating wire respectively; the tissue cutting electric heating wire protrudes outwards relative to the blood vessel sealing electric heating wires; high-temperature-resistant anti-adhesion materials are arranged outside the blood vessel sealing electric heating wires and the heat transfer sleeves; and the tissue cutting electric heating wire and the blood vessel sealing electric heating wires with the heat transfer sleeves are tightly attached to the working surface of the first forceps holder working end and are provided with high-temperature-resistant anti-adhesion insulating layers. The blood vessel sealing area of the clamped tissue is increased, the whole blood vessel sealing and tissue cutting operation is finished by a continuous action through the action of pressurized hot-melting welding, and the hot-melting welding cutter is simple, rapid and efficient and has an effect of preventing cutter head adhesion.

Description

technical field [0001] The invention belongs to electrosurgical equipment, in particular to an operation device for sealing blood vessels and cutting tissues by electric heat fusion welding. Background technique [0002] Cutting and hemostasis are important steps in surgical procedures. There are many cutting methods and hemostasis techniques in modern medicine, but they still cannot meet the clinical needs. For example, electrosurgery technology is developed from cold knife technology, the purpose is to improve efficiency, reduce bleeding and trauma. The most commonly used equipment in electrosurgery is high-frequency monopolar electric knife and bipolar coagulation forceps. The principle is to let high-frequency and high-density current pass through the surgical site where the electrodes are in contact, so that the tissue can produce high-temperature vaporization cutting and thermal coagulation to stop bleeding. The cutting effect of monopolar electric knife is good, but...

AI Technical Summary

Problems solved by technology

If the resistance heating wire is too thin, the heating area will be insufficient, the heat will be too concentrated, the tissue welding effect will not be good, the blood vessels will not be closed tightly, and the resistance heating wire will be easily damaged if it is overheated

Another disadvantage of the existing electrothermal welding cutting device is that the structure is too complicated, especially the two jaws at the front end of the jaw need to be equipped with movable joints, shafts, connecting rods, and circuit lines, and the volume and diameter need to be large, otherwise it will be easy to damage

Excessive volume also affects microscopic and delicate surgical operations

The first heating element and the second heating element used to improve the effect of blood vessel welding require two circuit systems (such as the first system is for radio frequency heating to seal blood vessels, and the second system is for resistance heating wire to cut tissue), the structure is complex, and the operation time is increased. Action and Difficulty

Most of the existing products with the same technology adopt the structure of the first working end (arm) and the second working end (arm) with joints, plus the circuit and heating elements, the design and manufacture are very complicated

And because the working end (arm) of the jointed clamp forms a certain angle when opening and closing, the strength and thickness of the clamped tissue are not uniform, and the effect is affected to a certain extent when performing tissue blood vessel heating, welding and cutting

Images