Surgical operating apparatus

Abstract

A surgical operating apparatus includes a sheath (18) having a distal end portion and a proximal end portion, a shaft-shaped probe body (11) which is inserted in the sheath (18) and has a distal end portion and a proximal end portion, and in which ultrasonic is transmitted, a probe distal end portion (3a) which is provided at the distal end portion of the probe body (11) and constitutes a first electrode section which is one of bipolar electrodes, and a jaw (17) which is rotatably supported on the distal end portion of the sheath (18), has an engaging surface (206) which is engaged with the probe distal end portion (3a), and has a second electrode section which is the other of the bipolar electrodes, wherein the jaw (17) includes, at a distal end portion (208) of the engaging surface (206) for engagement with the probe distal end portion (3a), a distal end chip (208) which tolerates a positional displacement relative to the probe distal end portion (3a) when the jaw is engaged with the probe distal end portion (3a).

Description

technical field [0001] The present invention relates to a surgical device for incision, excision or coagulation of biological tissues by using ultrasonic waves, ultrasonic and high-frequency composite energy. Background technique [0002] Generally speaking, as an example of an ultrasonic treatment device that can perform high-frequency treatment while using ultrasonic waves to perform treatments such as incision, resection, or coagulation of living tissue, for example, Japanese Patent Application Laid-Open No. 2006-223741 discloses (Patent Document 1) described ultrasonic treatment device. [0003] The operation part on the hand side of the device is connected to the base end part of the elongated insertion part. An ultrasonic vibrator that generates ultrasonic vibrations is disposed on the operating portion. A treatment unit for treating living tissue is arranged at the distal end of the insertion unit. [0004] The insertion part has an elongated circular tubular sheat...

AI Technical Summary

Problems solved by technology

In this case, it is difficult to maintain a constant gap between the first electrode portion at the tip of the probe and the second electrode portion of the jaw.

Here, the gap between the first electrode portion at the distal end of the probe and the second electrode portion of the jaw cannot be ensured, and a gap occurs between the first electrode portion at the distal end of the probe and the second electrode portion of the jaw. When in contact, the high-frequency processing capabilities of the bipolar cannot be ensured

Therefore, it is necessary to manage the manufacturing error and assembly error of each part of the device with high precision, so there is a problem of high cost.

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