US 9,801,649 B2Granted

Treatment device, treatment device unit and treatment system

AssigneeOlympus Corporation

InventorsTsunetaka Akagane, Yoshitaka Honda, Tsuyoshi Hayashida, Tadashi Kitayama

Life of this patent

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Abstract

A treatment device includes a probe having a treatment portion to treat a biological tissue by using the ultrasonic vibration generated in an ultrasonic transducer; an action portion being able to be close to and away from the treatment portion and including a pressing portion that presses the biological tissue to the treatment portion; and a vibration damping portion disposed in a part of the pressing portion in a state of facing the treatment portion, moving following the treatment portion to which the ultrasonic vibration is transmitted when abutting on the treatment portion in a state where the ultrasonic vibration is transmitted to the treatment portion, and prevented from being grinded by the treatment portion to which the ultrasonic vibration is transmitted.

Claims14

Dependent claims

A treatment device comprising:

a probe having a distal portion and a proximal portion, and that is configured to connect with an ultrasonic transducer and transmit an ultrasonic vibration generated by the ultrasonic transducer from the proximal portion of the probe to the distal portion of the probe;
a jaw configured to open and close against the distal portion of the probe;
a pad attached to the jaw and made of a resin material, the pad being configured to clamp a biological tissue between the pad and the distal portion of the probe;
and
a conductive plate disposed in the pad so that the conductive plate contacts the distal portion of the probe when the jaw is closed against the distal portion of the probe and the biological tissue is separated, the conductive plate having a heat resistance higher than that of the pad and a wear resistance higher than that of the pad.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/139,230Filed 26 Apr 2016 · continuation
Priority: JP 2013-25852213 Dec 2013
Published: US 2016/0235432 A118 Aug 2016
Granted: 31 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61B 17/320092
Using mechanical vibrations, e.g. ultrasonic: with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
A61B 18/1442
Probes or electrodes therefor: probes having pivoting end effectors, e.g. forceps
A61B 18/1445
Probes having pivoting end effectors, e.g. forceps: at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
A61B 2017/00026
Sensing or detecting at the treatment site: conductivity or impedance, e.g. of tissue