An adjustable buckle structure of an elastic thread ligation device

Abstract

The invention relates to a medical instrument, in particular to an adjustable fastener structure of an elastic line ligation device. The adjustable fastener structure comprises an elastic line connecting rod, a sliding trigger and a fastener connector, the elastic line connecting rod is arranged in a tension travel groove, the sliding trigger is arranged in a guide groove, and the fastener connector is used for connecting the elastic line connecting rod with the sliding trigger. A shaft hole is formed in the fastener connector, a connecting shaft is arranged in a gun, a plurality of toothed projections are uniformly arranged at the lower end of the elastic line connecting rod, connecting teeth capable of being engaged with the toothed projections are arranged on the fastener connector and abutted among the projections through torsion springs to control the extension length of the elastic line connecting rod, and the sliding trigger is detachably connected with the elastic line connecting rod. The locking strength and speed of an elastic line are freely adjusted, forward and backward movement of the sliding trigger or the elastic line connecting rod is controlled, the ligation strength and speed of a ligation surgery can be controlled, and surgical efficiency and surgical effects are effectively improved.

Description

technical field [0001] The invention relates to a medical instrument, in particular to an adjustable buckle structure of an elastic wire ligator. Background technique [0002] The traditional instruments used to perform band ligation in the past are 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 ligator (also known as the continuous hemorrhoid ligator, the continuous hemorrhoid suction ligator). Wait). The advantages of using this device for ligation surgery are: simple, fast and accurate operation; a single person can complete the operation; and the probability of complications is low; patients generally do not need anesthesia, and the pain is mild; most patients do not need hospitalization, treatment Low cost. The existing elastic wire hemorrhoid ligator is generally a ...

AI Technical Summary

Problems solved by technology

The existing elastic thread hemorrhoid ligation devices are generally manual elastic thread hemorrhoid ligation devices (also known as automatic elastic thread ligation devices), although they can overcome the defect that the rubber ring ligation device is not tight, but the target tissue can be tightened. The process is more complicated, positioning and popping up the push wire design operation process is too many, and it is not very convenient to use. When performing ligation operation in this technical scheme, the ligation tissue can only be released from the emitter head first, and after releasing the push wire tube, manually tighten it. Pushing the elastic thread loop of the wire tube to ligate the hemorrhoid tissue (or other target tissues), it is easy to cause the elastic thread loop to slip off from the tissue during the operation, which affects the treatment effect, and the strength of the manual tightening of the ligation loop is not easy to grasp, and it is easy to form a hemorrhoid. If the force is too small, the tightness is not enough, and if the force is too large, the elastic thread breaks

At the same time, when manually tightening the elastic thread, additional medical personnel are required to ensure that the negative pressure tube is fixed and prevent the target tissue from slipping from the negative pressure tube. Therefore, the above operation requires the cooperation of multiple medical personnel, making the already small operation space gets more crowded

For this reason, the existing patent "Elastic Thread Automatic Tensioning Mechanism of Self-tightening Elastic Thread Ligator" discloses a convenient and fast elastic thread ligation structure, but its structure is relatively complicated and the manufacturing cost is high, which leads to the patient's The cost of use increases, which is not conducive to the promotion and application of equipment

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