Surgical cutting instrument with titanium nitride coating on an

Details Surgical cutting instrument with titanium nitride coating on an Surgical cutting instrument with titanium nitride coating on an

1989-02-23

1990-05-08

Thaler, Michael H.

Surgery

Means for introducing or removing material from body for...

With means for cutting, scarifying, or vibrating tissue

606170, A61B 1732

Patent

active

049234412

ABSTRACT:
A surgical cutting instrument having elongate inner and outer tubular members with distal ends cooperating to cut bodily tissue and aspirate the cut bodily tissue through the inner tubular member includes a coating of titanium nitride formed on the inner tubular member by physical vaport deposition to extend from the distal end of the inner tubular member to the proximal end of the inner tubular member such that the titanium nitride coating forms an elongate bearing surface extending along the length of the surgical cutting instrument preventing cocking or skewing of the inner tubular member relative to the outer tubular member while also preventing galling and possible seizure by distributing or dispersing heat along the surgical cutting instrument.

REFERENCES:
patent: 3941903 (1976-03-01), Tucker, Jr.
patent: 4681541 (1987-07-01), Snaper
patent: 4811734 (1989-03-01), McGurk-Burleson et al.
"Wear Resistant Materials and Coatings", Lillian Ng and Yngve Naerheim.
Balzers Bulletins 120, 140, 150 and 210.
Balzers Bulletin 180: Substrate Material Guide.
Balzers Bulletin 130: Questions & Answers.
Balzers Bulletin No. 200 TIN Coating: An Option for Superior.
Tool Performance.
Balzers brochure jacket "Balzers Titanium Nitride Coating For Industry".

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