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EP0269176A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

A bone ingrowth chamber

Assignee: Nobel Biocare AB
•
Filing: 1987-11-16
•
Granted: —
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Expires: 2007-11-16
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Abstract

Abstract The disclosure relates to an apparatus for studying tissue ingrowth in an implant under different experimental conditions, in particular in response to locally administered test substances. The apparatus is of a bio-compatible material, preferably pure titanium, and is intended to be implanted in living bone tissue, primarily for animal-experimental activities. The apparatus consists of an outer portion (1) with a central recess in which an inner portion (2) is inserted. In the assembled state, the two portions (1, 2) form at least two bone ingrowth through channels (10, 11, 12, 13; 17, 18, 19) which are exposed when the inner portion (2) is dismounted, for comparative examination of the bone ingrowth promoting/retarding properties of test substances disposed in one or more of the channels.

Inventors

  • 👤 Thomas Albrektsson

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 01:22
CPC Classifications
A; A61; A61B; A61B10/00; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/46; A61F2/468; A61F2002/2817; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2230/00; A61F2230/0063; A61F2230/0069; Y; Y10; Y10S; Y10S623/00; Y10S623/912; Y10S623/914

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 106 words
An apparatus for studying the tissue ingrowth in an implant under different experimental conditions, the apparatus being of a bio-compatible material and being intended to be implanted in living bone tissue, characterized in that it consists of an outer portion (1) with a central recess, and a removable inner portion (2) inserted in the recess, said portions together forming at least two separate bone ingrowth channels (10, 11, 12, 13; 17, 18, 19) which are intended to be exposed when the inner portion (2) is removed, for comparative examination of the bone ingrowth promoting/retarding properties of test substances disposed in one or more of said channels.
Claim 2
Independent Claim 106 words
An apparatus for studying the tissue ingrowth in an implant under different experimental conditions, the apparatus being of a bio-compatible material and being intended to be implanted in living bone tissue, characterized in that it consists of an outer portion (1) with a central recess, and a removable inner portion (2) inserted in the recess, said portions together forming at least two separate bone ingrowth channels (10, 11, 12, 13; 17, 18, 19) which are intended to be exposed when the inner portion (2) is removed, for comparative examination of the bone ingrowth promoting/retarding properties of test substances disposed in one or more of said channels.
Claim 3
Dependent Claim 40 words
The apparatus as claimed in Claim 1, characterized in that said bone ingrowth channels consist of two discrete through channels (10, 12; 11, 13), one of the channels, the test channel, having been prepared with the test substance under consideration.
Claim 4
Dependent Claim 20 words
The apparatus as claimed in Claim 2, characterized in that the test channel has been doped with the test substance.
Claim 5
Dependent Claim 42 words
The apparatus as claimed in Claim 1, characterized in that the bone-ingrowth channels (17, 18, 19) form a Y-shaped pattern, in which event comparison may be made between three different test substances disposed at the ends of each prong of the Y.
Claim 6
Dependent Claim 24 words
The apparatus as claimed in Claim 4, characterized in that the ends of the prongs of the Y are closed by millipore filters (20).

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