Surgery – Truss – Pad
Patent
1979-07-16
1982-01-19
Cohen, Lee S.
Surgery
Truss
Pad
A61B 1739
Patent
active
043111459
ABSTRACT:
A disposable instrument is adaptable for use in electrosurgical operations, such as, coagulation procedures used in blocking off fallopian tubes, and is characterized by having an improved electrode and switch assembly which permits interchangeable but permanent mounting of electrodes of a selected length and configuration within a handle grip. The electrodes conventionally may be of a type having normally spaced-apart tips which through actuation of a plunger disposed for extension through the handle grip will cause the tips to be brought together to grasp or surround the tube or other tissue to be coagulated. The interchangeable but positive connection of electrodes within the housing brings them into direct electrical connection with electrical contacts and specifically in such a way that the connection and mounting of the electrodes cannot be disturbed or broken. An improved control circuit for the instrument assures normal interruption of the electrical circuit to the electrodes unless the electrode tips have been advanced to the tube-engaging position as described. A switch in the sidewall of the housing is positioned with respect to the control circuit so as to permit positive movement in a direction establishing closure of the circuit into the electrodes only when the electrode tips are in the tube-engaging position.
REFERENCES:
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patent: 3955578 (1976-05-01), Chamness et al.
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patent: 4005714 (1977-02-01), Hiltebrandt
patent: 4016881 (1977-04-01), Rioux et al.
patent: 4034762 (1977-07-01), Cosens et al.
patent: 4170234 (1979-10-01), Graham
patent: 4174715 (1979-11-01), Hasson
Cox John A.
Esty Janet M.
Cohen Lee S.
Neomed Inc.
Reilly John E.
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