Bone ingrowth chamber
First Claim
1. An apparatus of a bio-compatible material for implantation in a living bone tissue and for studying bone tissue formation growth in an implant in response to a locally administered test substance, said apparatus comprising;
- an outer portion with a central recess extending therethrough and a removable inner portion insertable in said central recess;
means provided in at least a bottom wall of said outer portion cooperating with a bottom wall of said inner portion to form a bone tissue ingrowth channel when said inner portion is fully inserted into said central recess, said channel being exposable for access thereto when said inner portion is removed upwardly, thereby allowing examination of said bone tissue ingrowth in said channel; and
a reservoir provided in said inner portion, said reservoir including means for fluid communication with said bone tissue ingrowth channel for supplying said test substance to said bone tissue ingrowth channel.
1 Assignment
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Accused Products
Abstract
An apparatus for studying the bone formation or bone ingrowth in an implant, in response to locally administered test substances of different types, is made of bio-compatible material, preferably pure titanium, and is implanted in living bone tissue, primarily for animal experiment activities. The apparatus has an outer portion with a central recess in which an inner portion is removably inserted. The two portions form, in the assembled state, a bone tissue ingrowth channel which is exposed when the inner portion is removed, whereby allowing examination of tissue which has grown into the channel. The inner portion includes a reservoir for the test substance whose bone formation promoting properties are to be tested. The reservoir is connected to the bone tissue ingrowth channel through a capillary aperture, so-called diffusion capillary, for supply of the test substance without simultaneous liquid flow.
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Citations
12 Claims
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1. An apparatus of a bio-compatible material for implantation in a living bone tissue and for studying bone tissue formation growth in an implant in response to a locally administered test substance, said apparatus comprising;
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an outer portion with a central recess extending therethrough and a removable inner portion insertable in said central recess; means provided in at least a bottom wall of said outer portion cooperating with a bottom wall of said inner portion to form a bone tissue ingrowth channel when said inner portion is fully inserted into said central recess, said channel being exposable for access thereto when said inner portion is removed upwardly, thereby allowing examination of said bone tissue ingrowth in said channel; and a reservoir provided in said inner portion, said reservoir including means for fluid communication with said bone tissue ingrowth channel for supplying said test substance to said bone tissue ingrowth channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification