Bipolar coagulation electric knife

Abstract

The invention provides a bipolar coagulation electric knife which comprises a tool bit assembly, a pull rod, an outer pipe and a handle assembly. The pull rod and the outer pipe are sleeved and isolated. The pull rod and the outer pipe are connected with a high frequency energy source through a twin-core conductor. The tool bit assembly comprises an acting pole tool bit, a loop pole tool bit, a loop pole tool bit insulating part and a middle insulating part arranged between the intersections of the acting pole tool bit and the loop pole tool bit. The handle assembly comprises a fixedly-arranged handle and a spanner capable of swinging relative to the handle. The loop pole tool bit insulating part is installed on the loop pole tool bit in the mode of being capable of insulating when the acting pole tool bit and the loop pole tool bit are closed. The loop pole tool bit and the outer pipe are connected, the acting pole tool bit is connected to the spanner through the pull rod, relative displacement is generated between the pull rod and the outer pipe through swinging of the spanner, and therefore the acting pole tool bit and the loop pole tool bit can be opened or closed. According to the bipolar coagulation electric knife, electrocoagulation and electric cutting instruments do not need to be replaced frequently, and the operation time is saved.

Description

technical field [0001] The invention relates to a high-frequency electrosurgical instrument, especially a high-frequency bipolar closed cutting knife, which can be used in various clinical departments to close and cut blood vessels, lymphatic vessels and tissue bundles suitable for the size of electrode jaws. The instrument is specifically designed for tissue and vessel closure cutting in laparoscopic and open surgery. Background technique [0002] At present, the monopolar high-frequency electric knife uses a circuit to cut and coagulate the tissue. This circuit is composed of a high-frequency oscillator and amplifier in the high-frequency electric knife, the patient, connecting wires and electrodes. In most applications, active wires and electrodes are used to output the current to the surgical site. This monopolar cutting method uses the patient as an electrode of the access, and it is easy to apply excessive high-frequency energy to the non-pathological part of the patie...

AI Technical Summary

Problems solved by technology

The disadvantage is that when cutting the tissue, the tissue needs to be coagulated first, and then the blade is pushed out to cut, that is, the coagulation wrench is pushed first, and the cutting wrench is pushed after the tissue coagulation prompt is completed. The whole process is cumbersome, and the blade cuts without energy output , Pushing the cutting wrench without complete coagulation of the tissue will cause bleeding

[0004] Utility model patent CN202397592 discloses a disposable bipolar electrocoagulation forceps, which only has blood coagulation function

The disadvantage is that it only has blood coagulation function and no cutting function

The pliers head is fixed while moving, the controllable opening angle is small, and the handle has no reset function, and the thumb is prone to fatigue after long-term operation

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