Endoscopic demucosation auxiliary cannula

A technique of dissection and cannula, which is applied in the field of medical devices, can solve the problems that the direction and strength of pulling the mucosa cannot be adjusted in real time, the use part is limited, and the production cost is high, so as to achieve the effects of improved vision, safe operation and simple operation

Pending Publication Date: 2018-12-07
唐丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an auxiliary sleeve for endoscopic mucosal dissection, which is used to solve the problem that the existing mucosal dissection tools have limited use parts, the direction and strength of pulling the mucosa cannot be adjusted in real time, the use is cumbersome, the structure is complex and The problem of high production costs

Method used

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  • Endoscopic demucosation auxiliary cannula
  • Endoscopic demucosation auxiliary cannula
  • Endoscopic demucosation auxiliary cannula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , 2 As shown in . The auxiliary sleeve 1 has a concentric tubular structure, that is, the axis of the auxiliary sleeve 1 and the axis of the lumen inside the auxiliary sleeve 1 are on the same line. The total length of the auxiliary sleeve 1 is 5-20cm, and the length of the auxiliary sleeve 1 entering the human body is 2-7cm. On the outer periphery, the auxiliary sleeve 1 can rotate axially. Four through-hole pipes 10 are arranged on the pipe wall of the auxiliary sleeve 1 along the axial direction of the auxiliary sleeve 1 , and the difference between two adjacent through-hole pipes 10 is 90°. Of course, the number of through-hole pipes 10 is not limited to four, and can be increased or decreased according to the size of the anus of different patients. The control rod 2 is installed in the through-hole pipe 10 , and the inner diameter of the through-hole pipe 10 is slightly larger than the outer diameter of the control rod 2 to ensure that the cont...

Embodiment 2

[0036] Such as Figure 4 , 5 , 6, and 7, the present embodiment provides an auxiliary sleeve for endoscopic mucosal dissection, which is mainly used for ESD or EMR surgery for lesions under a colonoscope. The auxiliary sleeve for endoscopic mucosal dissection includes an auxiliary sleeve 1 and joystick 2. The auxiliary sheath 1 in this embodiment has an eccentric tubular structure, that is, the axis of the auxiliary sheath 1 and the axis of the lumen inside the auxiliary sheath 1 are not on the same straight line. The length of the auxiliary sleeve 1 in this embodiment is longer than that of the auxiliary sleeve 1 in Embodiment 1. The wall of the auxiliary sleeve 1 in this embodiment is provided with two through-hole pipes 10 along the axial direction of the auxiliary sleeve 1, and the two through-hole pipes 10 are located at the thicker pipe wall of the auxiliary sleeve 1, and the two The difference between the two through-hole pipes 10 is 90°, but it is not limited to thi...

Embodiment 3

[0044] Such as Figure 8 , 9 As shown in 10 and 10, the auxiliary sleeve for endoscopic mucosal dissection in this embodiment is mainly used in ESD or EMR for upper gastrointestinal lesions. This embodiment is based on Embodiment 2. The difference between this embodiment and Embodiment 2 is that the auxiliary sleeve 1 in this embodiment has a concentric tubular structure, and the wall of the auxiliary sleeve 1 is provided with four channels. For the hole pipes 10, the difference between two adjacent through hole pipes 10 is 90°. Compared with the auxiliary sleeve 1 in embodiment 2, the auxiliary sleeve 1 in this embodiment only needs to rotate a small angle to make the control rod 2 reach the ideal operating position, which is more convenient to operate.

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Abstract

The invention relates to an endoscopic demucosation auxiliary cannula. The auxiliary cannula comprises an auxiliary cannula body and a control rod, at least one through hole pipeline is arranged on the wall of the auxiliary cannula body in the axial direction of the auxiliary cannula body, the control rod penetrates through the through hole pipeline, and a noose is arranged at the front end of thecontrol rod. An annular inner air bag is arranged inside the auxiliary cannula body, a first inflating nozzle is arranged on the outer wall of the auxiliary cannula body, and a first air conveying channel is further formed in the wall of the auxiliary cannula body in the axial direction of the auxiliary cannula body. One end of the first air conveying channel is communicated with the first inflating nozzle, and the other end of the first air conveying channel is communicated with an air inlet of the annular inner air bag. The endoscopic demucosation auxiliary cannula is simple and safe to operate and is not limited by operation parts, pulling and pushing directions and strength can be adjusted in real time, physician-assisted lifting is not needed, the position can be adjusted at any time, a digestive tract mucosa can be effectively pushed or pulled, people do not need to worry about separation of a specimen after an operation, and people only need to directly deal with a wound surface.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an auxiliary sleeve for endoscopic mucosal dissection. Background technique [0002] At present, endoscopic mucosal dissection (ESD) is the most important and most commonly used endoscopic minimally invasive surgical method for resection of early-stage tumors in the digestive tract. In order to perform endoscopic mucosal dissection more effectively, methods such as floss-assisted method, magnetic bead method, and double-arm ring-assisted method have been proposed and practiced. These methods are similar to playing the role of the second hand, by pulling or pushing the mucosa to lift the submucosa, so that the endoscopic operation field of view of the submucosa is fully exposed, thereby effectively assisting the treatment of ESD. However, these methods have certain limitations. For example, the location of use is limited, the direction and strength of pulling the mucosa ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/94A61B17/02
CPCA61B17/0218
Inventor 唐丹令狐恩强
Owner 唐丹
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