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Mucosa separation apparatus

A technology for stripping devices and mucous membranes, applied in medical science, surgery, etc., can solve problems such as the burden of surgical operators, and achieve the effect of safe manual operations

Active Publication Date: 2010-03-17
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in the limited space in the luminal organ, it is difficult to make the high-frequency knife move in parallel with the surface of the luminal organ to incise the periphery of the bulging lesion.
Therefore, when the knife is cut into the submucosal layer, in order to prevent the tip of the knife from being inserted into the muscularis propria (a layer that will not swell even if local injection is performed) located under the submucosal layer, it is necessary to make the knife The front end is located at a predetermined position (predetermined depth), so superb manual work skills and a high degree of concentration are required, which imposes a great burden on the operator

Method used

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  • Mucosa separation apparatus
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Examples

Experimental program
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Embodiment Construction

[0182] refer to Figure 1 to Figure 25 A first embodiment of the mucosal peeling device and the mucosal peeling method of the present invention will be described.

[0183] like figure 1 As shown, the mucosal dissection system 1 of this embodiment includes an endoscope 4 , a dissection balloon insertion device (mucosal dissection device) 5 , and a submucosal local injection needle 6 . A channel 2 is formed in an insertion portion 3 of an endoscope 4 . In this channel 2, a peeling balloon insertion device 5 or a submucosal local injection needle 6 is inserted through the forceps port 8 as necessary. The endoscope 4 is a so-called direct-viewing endoscope in which the channel 2 opened at the front end of the insertion portion 3 faces forward.

[0184] The stripping balloon insertion device 5 partially strips the submucosal layer from the propria muscle layer, thereby resecting the lesion of the digestive tract, such as figure 2 As shown, it includes: a flexible balloon inser...

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Abstract

A device and a method for mucosal detachment. The device for mucosal detachment comprises a first insertion part inserted into a subject, an expansion part formed at the tip of the first insertion part and expanded by the introduction of a fluid led therein, a flow passage formed in the first insertion part, connected to the expansion part, and feeding the fluid into the expansion part, and a curved part curving the tip of a treatment instrument inserted into the subject from the portion of the treatment instrument nearer the base end part more than the tip part.

Description

technical field [0001] The present invention relates to a mucosal dissection device for endoscopically resecting a lesion of the digestive tract. [0002] The present invention claims Japanese patent application No. 2005-159400, patent application No. 2005-159401 and patent application No. 2005-160296 filed on May 31, 2005 in Japan, and Japanese patent application 2005 filed on June 1, 2005 in Japan. -161232, and the priority of Japanese Patent Application No. 2005-166922 filed on June 7, 2005, the contents of which are incorporated herein. Background technique [0003] As a general treatment method for gastrointestinal lesions, there is endoscopic mucosal resection (EMR: Endoscopic Mucosal Resection) in which the lesions are excised endoscopically. [0004] Among them, as the "incision and peeling method", there is introduced a method in which the normal mucosa outside the lesion is incised all around using a high-frequency incision tool such as a high-frequency scalpel, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/32A61B1/00
CPCA61B2017/00269
Inventor 定政明人宫野保男矢沼豊高桥一朗柴木谦二中村努中川刚士仓康人
Owner OLYMPUS CORP