Treatment instrument and treatment system
AssigneeOlympus Corporation
InventorKen YOKOYAMA
Life of this patent
Estimating the term…
Abstract
A treatment instrument which is used under an environment filled with an electrically conductive liquid, the treatment instrument includes: a probe comprising a treatment portion which treats a treatment target part by ultrasonic vibration, and a back portion provided on a side opposite to the treatment portion, the probe constituting one pole in a bipolar treatment; a hollow sheath which comprises a protrusion to constitute the other pole in the bipolar treatment and which surrounds the probe; and a cutout which is provided in the sheath to expose the treatment portion of the probe and which comprises portions different from each other in inclination to a central axis of the probe.
Claims14
A treatment instrument which is used under an environment filled with an electrically conductive liquid, the treatment instrument comprising:
- a probe comprising a treatment portion which treats a treatment target part by ultrasonic vibration, and a back portion provided on a side opposite to the treatment portion, the probe constituting one pole in a bipolar treatment;
- a hollow sheath which comprises a protrusion to constitute the other pole in the bipolar treatment and which surrounds the probe;
- a cutout which is provided in the sheath to expose the treatment portion of the probe and which comprises portions different from each other in inclination to a central axis of the probe;
- a first insulating member which covers an inner circumferential surface of the sheath;
- and
- a second insulating member which covers an outer circumferential surface of the sheath;
- wherein the cutout is obliquely formed so that an angle formed by an angular portion located at the intersection of a plane defined by the cutout and an outer circumferential surface of the second insulating member is an obtuse angle.
(canceled)
(canceled)
Dependencies are inferred from the claim text.