Ceramic-coated instruments for medical use, ceramic-coated instruments for studying living organisms and process for producing the same
First Claim
1. A ceramic-coated medical appliance or biopsy appliance wherein at least a metal portion directly contacting an organism is coated with an insulating ceramic film having a resistance ρ
- of at least 105 Ω
·
m.
2 Assignments
0 Petitions
Accused Products
Abstract
Providing a ceramic-coated medical appliance quite excellent in insulating performance which has no negative effects on tissues or cells of an organism subjected to surgery; a ceramic-coated genetic control needle which has no risk of breaking during use nor no unfavorable effects, such as destruction or tear-off, on sliced tissues or tissue areas around the needle at site of penetration into a lesion and which cuts off a cell nucleus or injects an immunological solution into the nucleus without causing any negative effects on tissues around the penetrated needle; and a fabrication method for the same.
6 Citations
47 Claims
- 1. A ceramic-coated medical appliance or biopsy appliance wherein at least a metal portion directly contacting an organism is coated with an insulating ceramic film having a resistance ρ
- 30. A fabrication method for ceramic-coated medical appliance or biopsy appliance wherein an insulating ceramic coating film is formed by dry plating at least on a metal portion of a metallic medical appliance or biopsy appliance that directly contacts an organism.
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47. A system for fabricating a ceramic-coated genetic control needle comprising a magnetron sputtering apparatus, a sample holder and a differential-pressure high-vacuum chamber in a vacuum vessel of a dry plating system, wherein a metal needle as a coating object is set on the sample holder as positioned in parallel with an approaching direction of deposition particles and presenting a tip thereof against the approaching deposition particles, and wherein a trailing end of the needle is connected with the differential-pressure high-vacuum chamber via a tube for maintaining an interior of the metal needle at higher vacuum than outside thereof by differential pressure vacuum effect while an insulating ceramic film is formed on an outer and an inner surface of the metal needle.
Specification