Surgery – Truss – Pad
Patent
1974-11-06
1977-05-31
Kamm, William E.
Surgery
Truss
Pad
3 1, 128 821, 128422, A61N 136
Patent
active
040263045
ABSTRACT:
A method and apparatus for stimulating in vivo bone growth whereby a train of electrical pulses, rather than a direct current potential, is applied to the bone in vivo to produce faster and more satisfactory growth than a direct current voltage. In the embodiment described below, an astable multivibrator producing a pulse train with a duty cycle preferably between 1/10% and 10% is encapsulated in a corrosion resistant material which is, in turn, coated with a non-toxic, non-tissue reactive coating to produce a self-contained prosthetic which will stimulate bone growth.
A second component of this prosthetic system is comprised of a suitable substrate material that can be electrically driven to induce tissue infiltration into the substrate pore structure. This second component of the prosthetic system is not required for the proper functioning of the active component of said prosthetic system but may be used as an adjunct aid if the attending physician so elects. In the embodiment described below, several classes of such materials are discussed. These materials are non-toxic and non-tissue reactive and are of such design as to readily permit tissue infiltration.
REFERENCES:
patent: 2936762 (1960-05-01), Bernard
patent: 3357434 (1967-12-01), Abell
patent: 3474353 (1969-10-01), Keller, Jr.
patent: 3543761 (1970-12-01), Bradley
patent: 3605123 (1971-09-01), Hahn
patent: 3745995 (1973-07-01), Kraus
Hydro Med Sciences Inc.
Kamm William E.
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