1
F Barry Bays, Richard L Dunn, Sam Marchand, Richard W Treharne III: Biodegradable prosthetic device. Richards Medical Company, Pravel Gambrell Hewitt & Kimball, March 17, 1987: US04650488 (92 worldwide citation)

A prosthetic device formed of a biodegradable material and useful as a ventilation tube for insertion between the middle ear and the outer ear. The device includes a shaft with an axial passage, an inner flange and an outer flange. At least a portion of the outer surface of the shaft is tapered, wit ...


2
Richard L Dunn, Danny H Lewis, Thomas W Sander, Richard W Treharne III: Prosthetic ligament. Richards Medical Company, Kirkpatrick & Lockhart, March 15, 1988: US04731084 (63 worldwide citation)

A nonaugmented prosthetic ligament for permanently replacing a natural ligament spanning first and second body members, such as the femur and tibia includes a load bearing member formed from a plurality of biocompatible polyolefin fibers positioned at angles of from 0.degree. to 55.degree. relative ...


3
Richard W Treharne III, Anthony D Prescott: Ventilation tube permitting two-way gaseous communication with one-way liquid valve. Richards Medical Company, Pravel Gambrell Hewitt & Kimball, February 4, 1986: US04568337 (21 worldwide citation)

A myringotomy tube allowing two-way gaseous communication between an external ear canal and a middle ear cavity and only one-way liquid communication from the middle ear cavity to the external ear canal includes a ball mounted within the tube to move freely into and out of contact with a valve seat ...