Raymond H Pierson

US Patent:

20040147957, Jul 29, 2004

Filed:

Dec 16, 2003

Appl. No.:

10/737161

Inventors:

Raymond Pierson - Winter Park FL, US

International Classification:

A61L017/00

US Classification:

606/228000

Abstract:

An orthopedic system for fixation of a soft tissue tear includes a generally helical fixation element. A hollow, generally helical insertion element is dimensioned to admit at least a distal portion of the fixation element into a lumen thereof. The insertion element is insertable in a screwing motion along the soft tissue tear, and is removable in a reverse screwing motion, leaving the fixation element positioned helically in bridging relation along the tear. A pair of guide needles is provided, wherein one needle is insertable along each of opposed sides of the tear. The proximal ends of each needle are movable into a closely opposed relation, so that when the pair of needles are closely opposed, the insertion element is insertable along the tear in encompassing relation to the pair of needles.

US Patent:

60425849, Mar 28, 2000

Filed:

Dec 4, 1998

Appl. No.:

9/205593

Inventors:

Raymond H. Pierson - Orlando FL

International Classification:

A61B 1758

US Classification:

606102

Abstract:

A gauge for measuring bone thickness includes an elongated pin for insertion into a bore through a bone section. The pin has a length sufficient to span the entire bone section with a distal tip protruding therefrom. The pin further has a length measurement indicator disposed along an outer surface, such as a series of colored bands or indicia, the visualization of which communicates bone thickness. The gauge also has a head at a proximal end of the pin, which is dimensioned to prevent its movement into the bone section's bore. In a particular embodiment a protrusion extending away from the pin's outer surface is provided to retain the pin within the bore. Methods are also described for measuring bone thickness and for contouring bone.

US Patent:

62003232, Mar 13, 2001

Filed:

Jun 17, 1999

Appl. No.:

9/335110

Inventors:

Raymond H. Pierson - Orlando FL

International Classification:

A61B 1758

US Classification:

606102

Abstract:

A gauge for measuring bone thickness includes an elongated pin for insertion into a bore through a bone section. The pin has a length sufficient to span the entire bone section with a distal tip protruding therefrom. The pin further has a length measurement indicator disposed along an outer surface, such as a series of colored bands or indicia, the visualization of which communicates bone thickness. In a particular embodiment a protrusion extending away from the pin's outer surface is provided to retain the pin within the bore. A cannula may be provided for facilitating the introduction of the pin into the bone section. Methods are also described for measuring bone thickness and for contouring bone.

US Patent:

57979154, Aug 25, 1998

Filed:

Apr 17, 1996

Appl. No.:

8/633619

Inventors:

Raymond H. Pierson - Orlando FL
Thomas Wade Fallin - Sacramento CA

International Classification:

A61B 1782

US Classification:

606 74

Abstract:

A cerclage cable system comprises a cable in conjunction with a biasing mechanism for maintaining cable tension. Inadvertent loss of cable tension is compensated for by the biasing mechanism. In one embodiment, cerclage cable system includes a leaf spring disposed between the cable and the bone. Alternative embodiments include other biasing mechanisms, such as helical compression springs and resilient materials. Further embodiments include biasing mechanisms in line with the cable to maintain tension. Such a cerclage system maintains cable tension by taking up inadvertent slack in the cable with the biasing mechanism.