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An endoscopic mucosal stripper

A stripper and mucous membrane technology, applied in the field of medical devices, can solve the problems of prolonging the operation time and increasing the difficulty of the operation, and achieve the effect of shortening the operation time, improving the efficiency and saving the operation cost.

Active Publication Date: 2020-09-04
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, it is necessary to repeatedly exchange the injection needle for injection and the cutting knife for stripping through the endoscopic biopsy channel, which increases the difficulty of the operation and prolongs the operation time

Method used

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  • An endoscopic mucosal stripper
  • An endoscopic mucosal stripper
  • An endoscopic mucosal stripper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] like figure 1 , 2 As shown, the endoscopic mucosal dissection device disclosed in this embodiment includes a dissection incision knife 1, a transmission wire 3, a fixed handle 6, a rotating handle 9 for driving the transmission wire 3 to rotate, and a high-frequency electrical connection. The electric connection device 5 and the fixed handle 6 have an inner cavity 15, and the transmission wire 3 is contained in the inner cavity 15 and is matched with the inner cavity 15 in clearance. The peeling and incision knife 1 includes a cutter head 11 and a cutter seat 12. The front end of the transmission wire 3 stretches out from the fixed handle 6 to connect with the cutter head 11. The rotating handle 9 is installed on the fixed handle 6. The rotating handle 9 is connected to the transmission wire 3 through a vertical transmission structure. connect. Wherein, the vertical transmission structure includes a driving wheel 7 and a driven wheel 8, the axis of the driving wheel 7...

Embodiment 2

[0058] The difference between this embodiment and embodiment 1 is: as Figure 7 , 8 As shown, the front end of the knife holder 12 is provided with a slot 19, the guide hole 18 communicates with the slot 19, and the slot 19 is elongated. like Figure 9 As shown, the horizontal portion of the cutter head 11 can be accommodated in the slot 19 when the cutter head 11 is retracted.

Embodiment 3

[0060] The difference between this embodiment and embodiment 2 is: as Figure 10 As shown, the slot 19 in this embodiment is oval or circular.

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Abstract

The invention relates to amucous membrane stripper used under the assistance of an endoscope. The mucous membrane stripper comprises a cutter head, a transmission wire, a fixed handle, a rotary handlefor driving the rotation of the transmission wire, and an electric coupling device for connection with high frequency electricity. The front end of the transmission wire protrudes from the fixed handle to be connected with the cutter head, the rotary handle is arranged on the fixed handle, the rotary handle is connected with the transmission wire through a vertical transmission structure. The injection wire and the cutter head are provided with injection channels inside, the injection channel of the transmission wire is communicated with the injection channel of the cutter head, and the rearend of the transmission wire protrudes from the rear end of the fixed handle to be connected with an injection interface. The cutter head of the mucous membrane stripper can be rotated at a high speedso asto improve the efficiency of incision and stripping; under the assistance of an endoscope, the mucous membrane stripper can cut and strip mucous membranes, perform submucous injection without replacing the instrument, shorten the operation time, and save the operation cost; when the mucous membrane stripper is connected with a high frequency electricity, the mucous membrane stripper can alsoswitch to the coagulation function for blood coagulation and hemostasis.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an endoscopic mucosal stripper. Background technique [0002] With the development of digestive endoscopic diagnosis and treatment technology, the diagnosis rate of early gastrointestinal tumors continues to increase, the number of cases of endoscopic mucosal dissection (ESD) has increased significantly, and the requirements for the efficiency of surgical operations have continued to increase. The existing peeling knife has low peeling efficiency, long operation time and low efficiency. [0003] In addition, during surgery, injections are made into the submucosa to form a fluid cushion, and then the lesion is excised using a different cutting knife. However, at present, it is necessary to repeatedly exchange the injection needle for injection and the cutting knife for stripping through the endoscopic biopsy channel, which increases the difficulty of the operation and pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12A61B18/14A61M31/00
CPCA61B18/12A61B18/14A61B2018/00494A61B2018/00607A61M31/00
Inventor 胡兵曾宪晖吴春成郭林杰刘建容叶连松张宇航
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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