Surgery – Instruments – Electrical application
Patent
1994-11-18
1996-07-02
Cohen, Lee S.
Surgery
Instruments
Electrical application
606 45, 606 49, A61B 1739
Patent
active
055317430
ABSTRACT:
An instrument for use in electrosurgical procedures wherein coatings of two different materials are disposed on external surfaces. The first of these materials is selected to provide the principal insulating qualities desired, whereas the second is included to provide an indication of deterioration. The relative characteristics between the two coatings is selected so that when the visual appearance of the second coating progresses to a predetermined level, the insulating qualities of the first coating will still be satisfactory but approaching a point when the instrument has reached the end of its useful life, thus providing a ready and passive visual indication of the time when the instrument should be replaced.
REFERENCES:
patent: 1916722 (1933-07-01), Ende
Nettekoven William S.
Steckel Eric S.
Cohen Lee S.
Mega-Dyne Medical Products, Inc.
Sigalos John L.
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