A kind of pneumatic endoscope bending body

Abstract

The invention discloses a pneumatic endoscope bending body, which comprises a base body, on which a plurality of depressions for bending and deforming the base body are arranged at intervals along the axial direction, and the plurality of depressions are distributed on one side of the base body along a straight line, adjacent to each other. The base between the depressions forms a protruding part, and an air-filled cavity is arranged inside the protruding part, and the gas-filled cavity extends into the base below the depression, and the gas-filled cavity communicates with the injection and suction port arranged on the outer wall of the base. By arranging several concave parts at intervals along the axial direction on the base body, one side of the base body forms a spaced section, so that when the side expands under force, it is easier to form bending deformation through the spaced section; Expansion deformation, after the expansion of multiple inflatable chambers accumulates, one side of the matrix is ​​stretched, and the other side is stretched far less than this side, so the entire matrix is ​​curved; the invention controls the filling of gas into the inflatable chamber The degree of deformation is controlled by a certain amount, the device is simple, the operation is convenient, and the cost is low.

Description

technical field [0001] The invention relates to the field of endoscopes, in particular to a pneumatic endoscope bending body. Background technique [0002] The snake bone of the commercially available endoscope is made of metal material or plastic material, and the control method of the endoscope snake bone is nothing but a steel wire pulling type or a spring tube front driving type. The application of these snake bones has gone through decades of practice, and they have played an irreplaceable role in the steering control of the front end of the endoscope. Although the material and structure of the endoscopic snake bone are diversifying, the steering control method has not changed much. [0003] The steel wire pulling method of the endoscope snake bone is to connect the front end and the back end of the endoscope as a whole by several steel wires. The connection structure between them is extremely complicated, and it is difficult to assemble, debug and disassemble. Theref...

AI Technical Summary

Problems solved by technology

[0003] The steel wire pulling method of the endoscope snake bone is to connect the front end and the back end of the endoscope as a whole by several steel wires. The connection structure between them is extremely complicated, and it is difficult to assemble, debug and disassemble. Therefore, once the endoscope needs to be disassembled and repaired, the entire endoscope must be sent to a professional repair department for repair, which delays a lot of time, low maintenance efficiency, and high maintenance costs.

[0004] The steering function of the endoscope is one of the most important functions of the endoscope. For supplies, disposable endoscopes must have the characteristics of simple structure, perfect function, low cost and easy replacement. The complex structure, high production difficulty, numerous parts, high cost and complicated replacement procedures of the mirror snake bone control system have become an insurmountable gap for disposable medical endoscopes

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