Elastic thread ligating device with a thread cutting device and a method for setting elastic thread

Abstract

The invention discloses an elastic thread ligator with a thread cutting device and a method for setting the elastic thread. The elastic thread ligator with thread cutting device comprises a gun head,a gun body, a negative pressure tube and at least one elastic thread. At least one thread penetrating hole is formed in the tube wall of the gun head. The thread penetrating hole comprises a first hole and a second hole. The negative pressure tube passes through the gun body and extends to the gun head after being connected with the negative pressure device. At least one electric drive device is arranged on that gun body. The elastic wire is formed into elastic wire sleeve in the form of movable knot and is sleeved on the outer wall of the gun head. The elastic wire is penetrated through the first hole, passes through the thread penetrating hole, and then passes through the second hole and is connected with the electric driving device. The two sides of the gun head are respectively provided with blades, the gun body is provided with a push-pull driving part, and the output end of the push-pull driving part is provided with a push rod, which extends to the second hole and resists the elastic line. The invention has the characteristics of complete thread cutting, convenient operation and the like, and is applied to the field of medical devices.

Description

technical field [0001] The invention relates to medical device technology, in particular to an elastic thread ligation device with a thread cutting device and an elastic thread setting method. Background technique [0002] "Hemorrhoid ligation (also known as hemorrhoid rubber ring ligation, hemorrhoid suction ligation, etc.)" is a common method for the treatment of hemorrhoids. ) bandage at the root (or base) of the internal hemorrhoid, thereby using the elastic retraction force of the rubber ring to block the blood supply of the hemorrhoid, making it necrotic, shrinking, and falling off, so as to achieve the purpose of healing. In the past, the traditional instruments used for ligation surgery were extremely simple, time-consuming, laborious, and prone to complications. In order to change this situation, in the past ten years, there has been an automatic device that makes the ligation operation simple and easy, that is, the automatic hemorrhoid ligation device (also known ...

AI Technical Summary

Problems solved by technology

The use of rubber rings as ligation materials has some inherent disadvantages: ① Due to the inherent characteristics of natural rubber (or latex, silica gel, etc.), the inner diameter of the rubber ring cannot be infinitely small, and generally can only be made into 2.0-2.5mm ( At least not less than 1.5mm), otherwise it is easy to break when the bandage is stretched

[0010] In the above-mentioned public documents, after the elastic thread is taken up, the thread is trimmed manually. In this way, a long section of the thread is often left in the patient's body. The thread trimming is extremely incomplete, and the operation is extremely inconvenient.

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