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US 6,350,284 B1Granted
Bioabsorbable, layered composite material for guided bone tissue regeneration
AssigneeBionx Implants Oy
InventorsPertti Törmälä, Minna Kellomäki, Timo Waris
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Abstract
This invention describes a rigid layered composite material including a bioabsorbable plate layer and a bioabsorbable web layer for guided bone tissue regeneration, particularly suited for use in the treatment of cranial bone defects.
Claims14
A bioabsorbable cranial implant comprising:
- a bioabsorbable rigid plate layer having upper and lower sides, and a bioabsorbable fibrous web layer in at least partial contact with the lower side of the rigid plate layer, said fibrous web layer having a porous surface along which and into which bone tissue can grow, wherein the fibrous web layer contains pores that are between 30 μm and 1000 μm in diameter and wherein the cranial implant is capable of being completely resorbed.
An at least partially bioabsorbable cranial implant comprising:
- a bioabsorbable rigid plate layer having upper and lower sides, a bioabsorbable fibrous web layer in at least partial contact with the lower side of the rigid plate layer, said fibrous web layer containing pores that are between 30 μm and 1000 μm in diameter, wherein the material of the fibrous web layer bioabsorbs faster than the material of the rigid plate layer, and the cranial implant is capable of being completely resorbed.
Dependencies are inferred from the claim text.