Insulated implement

Details Insulated implement Insulated implement

1995-10-24

1998-12-08

Cohen, Lee S.

Surgery

Instruments

Electrical application

606 45, 606 49, A61B 1739

Patent

active

058462376

ABSTRACT:
An instrument wherein coatings of two different materials are disposed on external surfaces. The first of these coatings is selected to provide an insulating layer overlying at least a principal surface of the instrument, whereas the second is included to provide an indication of the likely remaining useful life of the insulating layer. 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
patent: 2285929 (1942-06-01), Jacobson
patent: 3261388 (1966-07-01), Kovac et al.
patent: 3842792 (1974-10-01), Souther
patent: 5084045 (1992-01-01), Helenowski
patent: 5195959 (1993-03-01), Smith
patent: 5228478 (1993-07-01), Kleisle
patent: 5312401 (1994-05-01), Newton et al.
patent: 5531743 (1996-07-01), Nettekoven et al.

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