Susan M Harding

US Patent:

8506608, Aug 13, 2013

Filed:

Mar 24, 2010

Appl. No.:

12/730661

Inventors:

Douglas Cerynik - Wynnewood PA, US
Susan P. Harding - Galloway NJ, US

International Classification:

A61B 17/04
A61B 17/84
A61F 2/08

US Classification:

606300, 606305, 606 76, 606 77

Abstract:

An orthopedic screw is used in a fixation device for treating fractures. The device has a body with holes to accept the bone screws. The bone screws have a layer of bioresorbable material on the shaft. Engagement between the bone screws and the body is initially through the bioresorbable material, which engagement rigidly fixes the relative angular orientation between the bone screws and the body when the device is applied to a bone. As the bioresrobable material is resorbed the angular relation between the bone screws and the body is no longer rigidly fixed, thereby effecting a transformation from rigid osteosynthesis to flexible osteosynthesis to allow micromotion between the bone fragments which promotes healing.

US Patent:

41785177, Dec 11, 1979

Filed:

Apr 27, 1978

Appl. No.:

5/900668

Inventors:

Robert E. Salomon - Dresher PA
Susan M. Harding - Bala Cynwyd PA

Assignee:

Temple University

International Classification:

F03B 1310

US Classification:

290 53

Abstract:

A method and apparatus is provided for direct conversion of ocean wave energy into electric power. The apparatus has no moving parts, and uses wave motion to vary the pressure of hydrogen gas in one of the cavities of a two-cavity chamber. The resulting imbalance of pressures in the cavities is relieved by conduction of hydrogen ions through a protonic conductor separating the cavities, and by conduction of electrons through an external circuit, enabling hydrogen gas to be formed on the low-pressure side of the chamber. The conduction of electrons constitutes a usable electric current. Virtually no hydrogen is consumed in this power generation process.