EP0120689A2
Expired / Lapsed
EP
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Transcutaneously implantable element
Assignee: Advance KK
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Filing: 1984-03-23
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Granted: —
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Expires: 2004-03-23
Abstract
Abstract A transcutaneously implantable element has at least a portion thereof (2,3) which is to be in contact with the cutaneous tissue of a living body, composed of a ceramic material comprising hydroxyapatite, tricalcium phosphate, andfortet- racalcium phosphate, and which comprises (a) an electrically conductive member (4) for electrically connecting the interior and exterior of the living body to each other or (b) a through hole (6) for mechanically connecting the interior and exterior of the living body to each other. The element may be made by sintering a compact of the ceramic material, or by coating the ceramic material onto a substrate, for example, a cylinder (12) which may contain a filter (11). The element can be semi-permanently and safely used in a living body without causing any undesirable bacterial infection, bleeding, and background noise.
Inventors
- 👤 Hideki Aoki
- 👤 Masaru Akao
- 👤 Yoshiharu Shin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61L; A61L27/00; A61L27/02; A61L27/12; A61L27/40; A61L27/44; A61L27/46; A61M; A61M39/00; A61M39/02; A61M39/0247; A61F; A61F2310/00; A61F2310/00005; A61F2310/00179; A61F2310/00293; A61M2039/0261; A61M2039/0267; A61M2039/0276; A61M2039/0279; Y; Y10; Y10S; Y10S623/00; Y10S623/915; Y10S623/919
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
70 words
A transcutaneously implantable element in which at least a portion thereof in contact with the cutaneous tissue of a living body is composed of a ceramic material comprising, as the main raw material, at least one member selected from the group consisting of hydroxyapatite, tricalcium phosphate, and tetracalcium phosphate, and which comprises an electrically conductive member for electrically connecting the interior and exterior of the living body to each other.
Claim 2
Dependent Claim
70 words
A transcutaneously implantable element in which at least a portion thereof in contact with the cutaneous tissue of a living body is composed of a ceramic material comprising, as the main raw material, at least one member selected from the group consisting of hydroxyapatite, tricalcium phosphate, and tetracalcium phosphate, and which comprises an electrically conductive member for electrically connecting the interior and exterior of the living body to each other.
Claim 3
Dependent Claim
68 words
A transcutaneously implantable element in which at least a portion thereof in contact with the cutaneous tissue of a living body is composed of a ceramic material comprising, as the main raw material, at least one member selected from the group consisting of-hydroxyapatite, tricalcium phosphate, and tetracalcium phosphate, and which comprises a through hole for mechanically connecting the interior and exterior of the living body to each other.
Claim 4
Dependent Claim
68 words
A transcutaneously implantable element in which at least a portion thereof in contact with the cutaneous tissue of a living body is composed of a ceramic material comprising, as the main raw material, at least one member selected from the group consisting of-hydroxyapatite, tricalcium phosphate, and tetracalcium phosphate, and which comprises a through hole for mechanically connecting the interior and exterior of the living body to each other.
Claim 5
Dependent Claim
23 words
An element according to claim 1 or claim 2 for use for medical applications in monitoring biological informations or stimulating a living body.
Claim 6
Dependent Claim
15 words
An element according to claim 2 for use as an inlet for delivering a drug.
Claim 7
Dependent Claim
10 words
An element according to claim 4 for use in iontophoresis.
Claim 8
Dependent Claim
14 words
An element according to claim 2 for use as an outlet for blood dialysis.
Claim 9
Dependent Claim
16 words
An element according to claim 2 which is provided with a membrane filter for removing bacteria.
Claim 10
Dependent Claim
23 words
. 8. An element according to any preceding claim in which said element is formed by sintering a compact of said ceramic material.
Claim 11
Dependent Claim
28 words
An element according to any one of claims 1 to 7, in which said element is formed by coating said ceramic material on the surface of a substrate.
Claim 12
Dependent Claim
30 words
An element according to any one of claims 1 to 7, in which said element is formed by vapor deposition of said ceramic material on the surface of a substrate.
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