Liquid injection device for laparoscope

Abstract

The invention relates to the field of medical instruments, in particular to a liquid injection device for a laparoscope, which comprises a catheter part, an injection cylinder part and a bending component, the catheter part comprises a hard tube and a soft tube, and the hard tube is connected with the injection cylinder body through a connecting sleeve; a liquid storage cavity used for storing liquid is formed in the injection cylinder body, and the hose is connected with the injection cylinder body, communicated with the liquid storage cavity, penetrates through the hard tube and extends outwards. The bending assembly comprises a control assembly and a plurality of bending members; the multiple bent components are sequentially connected, and a first rotating pair is formed between every two adjacent bent components. First through holes are formed in the center of the bending component in a penetrating mode, and the hose sequentially penetrates through the first through holes. The control assembly is connected with the bending components and controls the bending components to rotate around the first rotating pairs. The liquid injection device can control the hose to be bent in all directions to adapt to the complex environment of the abdominal cavity.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a liquid injection device for laparoscopy. Background technique [0002] In laparoscopic tubal anastomosis, it is necessary to inject normal saline into the subserosal layer of the original tubal ligation scar. Due to the complex intra-abdominal structure, the injection pipeline needs to be bent during the injection process to adapt to the complex abdominal structure. Traditional endoscopes generally control their bending and steering through scissor handles and steering wires. The operation accuracy is not high, the control of the steering angle is not accurate enough, and the viewing angle is small. Due to the technical bottleneck caused by the size of the pipe and the blind angle, Bring hidden danger to the safety of operation. In view of the above deficiencies, the invention patent with the notification number CN101933795B discloses a combined soft and hard endoscope, whic...

AI Technical Summary

Problems solved by technology

Traditional endoscopes generally control their bending and steering through scissor handles and steering wires. The operation accuracy is not high, the control of the steering angle is not accurate enough, and the viewing angle is small. Due to the technical bottleneck caused by the size of the pipe and the blind angle, Bring hidden dangers to the safety of surgery

In view of the above deficiencies, the invention patent with the notification number CN101933795B discloses a combined soft and hard endoscope, which stretches and rotates between the guide rail and the outer tube and the inner tube of the slider, but the device still has certain limitations. lack of

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