High frequency incision instrument for endoscope

Details High frequency incision instrument for endoscope High frequency incision instrument for endoscope

2011-03-01

2011-03-01

Peffley, Michael (Department: 3739)

Surgery

Instruments

Electrical application

C606S045000, C600S121000, C600S152000, C600S156000

Reexamination Certificate

active

07896876

ABSTRACT:
A high-frequency incision instrument for an endoscope is provided with an electrically insulative flexible sheath constituted of a distal tube disposed at a tip portion thereof and a proximal tube disposed on a proximal side such that one is loosely inserted into the other so as to rotate around an axial line thereof, a high-frequency electrode exposed along a lateral surface of the distal tube and connected to a conductive operating wire extending throughout inside the distal tube and the proximal tube, so that a high-frequency current is supplied to the high-frequency electrode through the operating wire, and so that rotating the operating wire at a proximal end portion of the proximal tube around an axial line causes the distal tube to rotate around the axial line with respect to the proximal tube, thus to change an orientation of the high-frequency electrode.

REFERENCES:
patent: 5919188 (1999-07-01), Shearon et al.
patent: 2005/0261675 (2005-11-01), Shibata
patent: 2006/0173450 (2006-08-01), Shibata
patent: 2006/0173451 (2006-08-01), Shibata
patent: 61-7694 (1986-03-01), None
patent: 2001-245897 (2001-09-01), None
patent: 2004-152632 (2004-05-01), None
patent: 2005-334000 (2005-12-01), None
patent: 2006-212109 (2006-08-01), None
patent: 2006-212110 (2006-08-01), None
English Language Abstract of JP 2005-334000.
English Language Abstract of JP 2001-245897.

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