Transcutaneously implantable element

• US 5,026,397 A
• Filed: 09/10/1990
• Issued: 06/25/1991
• Est. Priority Date: 03/24/1983
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisya Advance Kaihatsu Kenkyujo
• Original Assignee: Kabushiki Kaisya Advance Kaihatsu Kenkyujo
• Inventors: Aoki, Hideki, Shin, Yoshiharu, Akao, Masaru
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/581,122
• Time in Patent Office: 288 Days
• Field of Search: 623/11, 623/12, 623/66
• US Class Current: 424/422
• CPC Class Codes: A61F 2310/00293 containing a phosphorus-containing compound, e.g. apatite
• CPC Class Codes: A61L 27/12 Phosphorus-containing materials, e.g. apatite
• CPC Class Codes: A61L 27/46 with phosphorus-containing inorganic fillers
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• CPC Class Codes: A61M 2039/0267 comprising sensors or electrical contacts
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 2039/0279 for introducing medical instruments into the body, e.g. endoscope, surgical tools
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• CPC Class Codes: Y10S 623/919 Bone

Abstract

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) an electrically conductive member for electrically connecting the interior and exterior of the living body to each other or (b) a through hole for mechanically connecting the interior and exterior of the living body to each other.

This transcutaneously element can be semipermanently and safely used in a living body without causing any desirable bacterial infection, bleeding, and background noise.

Claims

1. 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.

2. The element of claim 1 in which said element is formed by sintering a compact of said ceramic material.

3. The element of claim 1 in which said element is formed by coating said ceramic material on the surface of a substrate.

4. The element of claim 1 in which said element is formed by vapor deposition of said ceramic material on the surface of a substrate.