Porous flexible metal fiber material for surgical implantation

Details Porous flexible metal fiber material for surgical implantation Porous flexible metal fiber material for surgical implantation

1986-04-22

1987-09-15

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 66, 623 11, A61F 228, A61F 202

Patent

active

046937218

ABSTRACT:
Titanium or other biocompatible metal fibers having a diameter of from about 20 to about 200 .mu.m, a length of from about 2 to 50 mm and a length-to-diameter ratio of at least about 100 are formed into a flexible and deformable mass, for example, a sheet, of interlocked fibers, which may be sintered for additional coherence, to a thickness of from about 0.5 to 30 mm. The amount of fibers is such that the sheet has a voids volume of at least 65%, preferably about 90%. The diameter of the pores of the porous sheet are at least about 150 .mu.m such that bony tissue can grow in the pores. These porous sheets are highly malleable without loss of structural integrity or pore size distribution. Accordingly, the porous metal fiber mesh sheets are useful for stabilizing prosthetic devices or for general repair of defective bone structures.

REFERENCES:
patent: 3906550 (1975-09-01), Rostoker et al.
patent: 4365357 (1982-12-01), Draenert
Rostoker et al., "Some Mechanical Properties of Sintered Fiber Metal Composites", 1974, pp. 107-112.

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