Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (CA2081464) TEMPERATURE CONTROLLED RF COAGULATION

Office : Canada
Application Number: 2081464 Application Date: 26.04.1991
Publication Number: 2081464 Publication Date: 14.11.1991
Grant Number: Grant Date: 19.03.2002
Publication Kind : C
Prior PCT appl.: Application Number:US1991002898 ; Publication Number: Click to see the data
IPC:
A61B 18/14
A61B 18/12
A61B 17/00
A61B 17/42
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04
by heating
12
by passing a current through the tissue to be heated, e.g. high-frequency current
14
Probes or electrodes therefor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
18
Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
04
by heating
12
by passing a current through the tissue to be heated, e.g. high-frequency current
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
42
Gynaecological or obstetrical instruments or methods
Applicants: BOSTON SCIENTIFIC CORPORATION
Inventors: LENNOX, CHARLES D.
Priority Data: 515,850 27.04.1990 US
Title: (EN) TEMPERATURE CONTROLLED RF COAGULATION
(FR) COAGULATION A L'AIDE D'UN APPAREIL DE CONTROLE DE LA TEMPERATURE PAR LA RADIOFREQUENCE
Abstract: front page image
(EN) Radiofrequency medical devices for ohmic heating of tissue of a patient include a temperature sensor (29) earned by and in thermally conductive relationship with a thermally conductive electrode (28). The sensor (29) is connected for feedback to a control circuit (6) that modulates RF power applied to the electrode according to the signal received from the temperature sensor (29). The control circuit (6) and RF power supply alternate between two operating modes. In the first mode the RF power supply applies RF power to the electrode (28). In the second mode the control circuit (6) senses a signal from the temperature sensor (29) in the absence of RF signal. The control circuit (6) compares the signal from the temperature sensor (29) to a set value and modu- lates the RF power applied to the electrode (28) in accordance with the set value.


Also published as:
EP0528868JPH06500476WO/1991/016859