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Electronic choledochoscope with variable hardness

A choledochoscopy and variable technology, applied in the field of endoscopy, can solve the problems of operator distraction, operation troubles, etc., and achieve the effect of convenient operation.

Pending Publication Date: 2022-01-25
HANGZHOU HAWK OPTICAL ELECTRONICS INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water injection pipe will interfere with the direction of the operator's hand and arm. The water injection interface that cannot adjust the direction will easily distract the operator and cause great trouble to the operation.

Method used

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  • Electronic choledochoscope with variable hardness
  • Electronic choledochoscope with variable hardness
  • Electronic choledochoscope with variable hardness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 , 2 , shown in 3, a kind of soft and hard variable electronic choledochoscope, comprises mirror body part 5 and is used to control the operating part 7 of mirror body part, is provided with photographing button 8, video recording button 9 and white balance button 10 on the operating part . The free end of the mirror body is a flexible insertion tube 6, and the outer side of the flexible access tube is covered with a rigid sheath 24, and the rigid sheath is detachably connected to the mirror body. Both the mirror body and the rigid sheath are radially provided with a slot 25 , and an insertion piece 26 for detachably connecting the rigid sheath and the mirror body is provided through the slot. The mirror body part is connected with a channel part, the axis of the mirror body part and the axis of the operation part are arranged obliquely, the plug part 1 is connected to the operation part, a channel is arranged in the flexible insertion tube, a...

Embodiment 2

[0027] Embodiment 2: The structure of this embodiment is basically the same as that of Embodiment 1, the difference is that, as Figure 4 , 5 As shown, a water injection interface is installed obliquely on the operation part, and a water injection pipe is connected to the water injection interface. The end of the water injection interface close to the operation part is provided with a rotating tube 13, and the axis of the rotating tube is perpendicular to the axis of the operating part; the operating part is close to the rotating tube. The section at the center is in the shape of a "D", the plane position of the operating part is the installation surface 11, and a positioning sleeve 12 is arranged inside the operating part, and the rotating tube runs through the mounting surface and the positioning sleeve in turn to make the operating part and the water injection interface rotate and connect; the middle part of the rotating tube A positioning ring 19 with a diameter greater th...

Embodiment 3

[0029] Embodiment 3: The structure of this embodiment is basically the same as that of Embodiment 2, the difference is that, as Figure 6 As shown, the diameter of the guide portion 22 can also gradually decrease from the end close to the column to the end away from the column, and the free end edge of the fixing sleeve is provided with several triangular notch grooves 23 . The diameter of the guide part can also gradually decrease from the end close to the columnar part to the end away from the columnar part, that is, when the edge of the fixed sleeve enters the guide part, the edge of the fixed sleeve is subjected to a contraction force that converges toward the axis of the fixed sleeve. The free end edge of the fixing sleeve is provided with several triangular notch grooves, which can make the edge of the fixing sleeve deform inward more easily.

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Abstract

The invention relates to an endoscope, and particularly relates to an electronic choledochoscope with variable hardness. The electronic choledochoscope with variable hardness comprises a choledochoscope body part and an operation part used for controlling the choledochoscope body part, wherein the free end of the choledochoscope body part is a flexible insertion tube, the outer side of the flexible insertion tube is sleeved with a hard sheath tube, and the hard sheath tube is detachably connected with the choledochoscope body part. The electronic choledochoscope with variable hardness has the advantages that the hardness degree of the end of the choledochoscope can be changed and multiple channels or pipelines are arranged according to the structure of a human biliary system and actual operation requirements, illumination and endoscopic observation can be achieved, water injection and drainage functions can be achieved on the same choledochoscope body part, frequently inserting multiple pipelines into the body of a patient is avoided, and operation is convenient.

Description

technical field [0001] The invention relates to an endoscope, in particular to an electronic choledochoscope with variable hardness and softness. Background technique [0002] The invention of choledochoscope promoted the development of biliary tract surgery technology, but in clinical application, it was found that rigid choledochoscope has many disadvantages. During the operation, it is necessary to inject water into the gallbladder cavity to expand the gallbladder cavity to an appropriate degree and increase the operating space. , which in turn is beneficial to provide a clear vision for the operation and facilitate the completion of various operations. However, the existing choledochoscopes are all single-channel, which can only realize the observation function and cannot meet the requirements of clinical application. Additional pipeline equipment with water injection and drainage is required, which increases the cost and increases the difficulty of operation. Existing ...

Claims

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Application Information

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IPC IPC(8): A61B1/005A61B1/015A61B1/04A61B1/06A61B1/313
CPCA61B1/005A61B1/015A61B1/04A61B1/06A61B1/313A61B1/00071
Inventor 赵静俞国良
Owner HANGZHOU HAWK OPTICAL ELECTRONICS INSTR CO LTD