Tissue excision method

摘要

Provided is a tissue excision method that excises a partial tissue within an excision region set in a hollow organ over an entire thickness direction. The tissue excision method includes a first process of gripping a peripheral edge portion of the excision region from the inside of the hollow organ; a second process of moving the portion and drawing the folded hollow organ into a slit with a predetermined width; a third process of suturing a part located outside the excision region so as to be integral over the thickness direction; and a fourth process of cutting the portion of the drawn hollow organ along the peripheral edge of the excision region. In the second process, a portion of a fluid within the hollow organ is moved out of the hollow organ to keep the internal pressure within a fixed range while drawing the portion of the hollow organ.

主权项

1. A tissue excision method that excises a partial tissue within an excision region set in a hollow organ over an entire thickness direction, the tissue excision method comprising:
a first process of gripping one point of a periphery of the excision region from inside of the hollow organ; a second process of moving a portion of the gripped excision region, folding a portion of the gripped excision region so that external surfaces of the gripped excision region are in contact with each other, and drawing the folded excision region into a slit with a predetermined width; a third process of fastening a part located outside of the drawn, folded excision region so as to be integral over the thickness direction; and a fourth process of cutting the portion of the drawn, folded excision region along the periphery of the excision region, wherein in the second process, a portion of a fluid within the hollow organ is moved out of the hollow organ to keep the internal pressure of the hollow organ within a fixed range while drawing the folded excision region into the slit.