Endoscope treatment device

Details Endoscope treatment device Endoscope treatment device

1986-06-18

1989-08-15

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604283, 128 4, A61M 518

Patent

active

048570575

ABSTRACT:
A structure of a treatment device to be inserted in the channel of an endoscope is disclosed. The treatment device includes a flexible elongated member, a treatment section having a sharp end portion, and a flexible outer tube for receiving the flexible elongated member and the treatment section to be movable forward/backward. A regulating member is mounted on the distal end portion of the outer tube. An abutting portion is formed inside the outer tube adjacent to the proximal end portion of the regulating member. The abutting portion is engaged with a shoulder portion formed on the treatment section in order to regulate the projecting amount of the treatment section. When the outer tube and the elongated member have a bending tendency, the sharp end portion of the treatment section is located on the inner side of the curve in the elongated member.

REFERENCES:
patent: 4222380 (1980-09-01), Terayama
patent: 4318402 (1982-03-01), Vaillancourt
patent: 4368730 (1983-01-01), Sharrock
patent: 4613323 (1986-09-01), Norton et al.
patent: 4617940 (1986-10-01), Wang
patent: 4660570 (1987-04-01), Dombrowski
patent: 4668226 (1987-05-01), Omata et al.

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