Use of pulsed ultrasonics in surgical applications

Details Use of pulsed ultrasonics in surgical applications Use of pulsed ultrasonics in surgical applications

1998-03-10

2000-12-19

Isabella, David J.

Surgery

Miscellaneous

Methods

A61B 1700

Patent

active

061615455

ABSTRACT:
A medical instrument (10) is used by a surgeon (S) operating on a patient (P). A surgical implement (12) is held by the surgeon performing the operation and is manipulable by him to bring a portion (14) of the implement into contact with the patient's body (B). A source (16) of ultrasonic pulses (18) produces a stream of such pulses which are supplied to the instrument. The method of the present invention enables pulses to be supplied to the instrument for a defined interval (T.sub.D) after which there is a defined interval (T.sub.E) in which no pulses are delivered. At the end of this pause pulses are again delivered to the instrument. Provision of a pause enable the surgeon to better control the operation, for example, by preventing overcutting of tissue.

REFERENCES:
patent: 4192294 (1980-03-01), Vasilevsky et al.
patent: 4745920 (1988-05-01), Forssmann et al.
patent: 5391144 (1995-02-01), Sakurai et al.
patent: 5808396 (1998-09-01), Boukhny
patent: 5897569 (1999-08-01), Kellogg et al.

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