Metal tools and implements – making – Blank or process – Cutlery
Patent
1989-06-02
1990-09-25
Hall, Carl E.
Metal tools and implements, making
Blank or process
Cutlery
65 604, 65 61, 65 62, 761011, 20419215, 295272, B21K 1100
Patent
active
049585398
ABSTRACT:
A surgical cutting blade for use in an electrosurgical scalpel includes a thin flat ceramic substrate having a rounded tip where the edge portion of the substrate on the opposed major surfaces thereof are beveled. A pattern of metallization is provided on the opposed major surfaces of the blade substrate with the metallization extending over the tapered portions. The substrate is then back-ground to form a blunt edge extending between the tapered surfaces at the edge of the substrate. The metallization pattern further includes traces extending from the conductors along the blunt working edge of the blade to the handle receiving portion thereof and provide a means whereby RF energy may be conducted to the metallized working edge of the blade.
REFERENCES:
patent: 3761372 (1973-09-01), Sastri
patent: 3761373 (1973-09-01), Sastri
patent: 3761374 (1973-09-01), Bromer et al.
patent: 3811189 (1974-05-01), Sastri
patent: 4770067 (1988-09-01), Liu et al.
patent: 4802476 (1989-05-01), Nuerenberg et al.
Grabinger Scott R.
Solberg Jeffrey J.
Stasz Peter
Arbes Carl J.
Everest Medical Corporation
Hall Carl E.
Haugen Orrin M.
Niebuhr Frederick W.
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