Randall G Ross

US Patent:

59318449, Aug 3, 1999

Filed:

Mar 31, 1998

Appl. No.:

9/052651

Inventors:

Kenneth K. Thompson - Palm Harbor FL
Randall D. Ross - Largo FL
Steven W. Ek - Bolton MA

Assignee:

Smith & Nephew, Inc. - Memphis TN

International Classification:

A61B 1700

US Classification:

606144

Abstract:

A handle assembly for a drive tool includes a plunger actuator configured to move a plunger of the drive tool between a retracted position and an extended position, an outer tube actuator configured to move an outer tube of the drive tool between a retracted position and an extended position, and a coupler configured to move the outer tube from its extended position to its retracted position in response to movement of the plunger from its extended position to its retracted position. The drive tool delivers a suture securing device to a surgical site. When the plunger actuator moves the plunger to its extended position, a second member of the device is secured to a first member of the device. When the plunger actuator moves the plunger to a second, further extended position, the plunger deploys the secured first and second members from the drive tool.

US Patent:

54703344, Nov 28, 1995

Filed:

Jun 22, 1992

Appl. No.:

7/902352

Inventors:

Randall D. Ross - Largo FL
Kevin J. Bassetti - Largo FL

Assignee:

Linvatec Corporation - Largo FL

International Classification:

A61B 1756

US Classification:

606 72

Abstract:

An interference bone fixation screw fabricated from bioabsorbable material includes a body having a proximal end, a distal end and a screw thread disposed therealong from the proximal end to the distal end. A drive recess is formed in the body to extend longitudinally from the proximal end toward the distal end for receiving a rotatable driver. The drive recess defines a plurality of radial force receiving surfaces for receiving concentric forces from the driver applied perpendicularly to the force receiving surfaces.

US Patent:

52037843, Apr 20, 1993

Filed:

Sep 3, 1991

Appl. No.:

7/753843

Inventors:

Randall D. Ross - Largo FL
Stephen J. Snyder - Tarzana CA
Sam R. Marchand - Dunedin FL

Assignee:

Linvatec Corporation - Largo FL

International Classification:

A61F 104
A61F 208

US Classification:

606104

Abstract:

A cannulated bioabsorbable tack has annular ribs configured to enhance fixation to invivo tissue and is particularly effective for attaching soft tissue to bone, such as ligaments or muscles. Apparatus including a trocar wire, an inserter and an impactor facilitates arthroscopic surgical procedures for inserting the tack invivo to attach or join the tissue.

US Patent:

57439109, Apr 28, 1998

Filed:

Nov 14, 1996

Appl. No.:

8/751015

Inventors:

F. Barry Bays - Clearwater FL
Randall D. Ross - Largo FL
Stephen M. Vajda - Largo FL

Assignee:

Xomed Surgical Products, Inc. - Jacksonville FL

International Classification:

A61B 1756
A61F 504

US Classification:

606 99

Abstract:

An instrument for extracting an orthopedic prosthesis having an elongated shank implanted in bone and defining a first longitudinal axis and a tapered stem projecting from the shank and defining a second longitudinal axis oriented at an oblique angle relative to the first axis includes a lower jaw defining a first opening for receiving the tapered stem, an upper jaw pivotally connected to the lower jaw and defining a second opening in opposed relation to the first opening, and a mechanism for pivoting the upper and lower jaws apart so that, when the tapered stem is received in the first and second openings, at least one of the first and second openings is caused to tilt relative to the second longitudinal axis such that diagonally opposed inside surfaces of the tilted opening contact the tapered stem of the prosthesis at longitudinally spaced locations to secure the instrument to the tapered stem so that an extraction tool can be attached to the instrument and used to exert an extraction force substantially parallel to the first longitudinal axis of the prosthesis. One of a plurality of inserts having differently sized openings is preferably telescopically received in the second jaw opening to accomodate various degrees of taper, and the insert is preferably held in place within the jaw opening by a retainer such as a shoulder screw threaded into the top surface of the upper jaw so that, when the jaws are pivoted apart, inner surfaces of the insert opening will contact the tapered stem to secure the instrument to the prosthesis.

US Patent:

52464415, Sep 21, 1993

Filed:

Sep 3, 1991

Appl. No.:

7/753841

Inventors:

Randall D. Ross - Largo FL
Stephen J. Snyder - Tarzana CA
Sam R. Marchand - Dunedin FL

Assignee:

Linvatec Corporation - Largo FL

International Classification:

A61B 1700

US Classification:

606 53

Abstract:

A cannulated bioabsorbable tack has annular ribs configured to enhance fixation to tissue, such as bone, and is particularly effective for attaching soft tissue to bone, such as ligaments or muscles in the shoulder. Apparatus and method for displaying the tack facilitate arthroscopic surgical procedures for attaching or joining tissue.

US Patent:

51527650, Oct 6, 1992

Filed:

Sep 3, 1991

Appl. No.:

7/753842

Inventors:

Randall D. Ross - Largo FL
Stephen J. Snyder - Tarzana CA
Sam R. Marchand - Dunedin FL

Assignee:

Linvatec Corporation - Largo FL

International Classification:

A61F 232

US Classification:

606 99

Abstract:

A cannulated bioabsorbable tack has annular ribs configured to enhance fixation to tissue, such as bone, and is particularly effective for attaching soft tissue to bone, such as ligaments or muscles in the shoulder. Apparatus and method for display the tack facilitate arthroscopic surgical procedures for attaching or joining tissue.

US Patent:

50190792, May 28, 1991

Filed:

Nov 20, 1989

Appl. No.:

7/438879

Inventors:

Randall D. Ross - Largo FL

Assignee:

Zimmer, Inc. - Warsaw IN

International Classification:

A61F 504
F16B 3500

US Classification:

606 72

Abstract:

A guided bone screw includes proximal and distal sections threaded with different pitches in the same direction and spaced by an unthreaded intermediate section having a shorter length than the distal section with a diameter substantially equal to the major diameter of the distal section. The intermediate section diameter is greater than the minor diameter and smaller than the major diameter of the proximal section thread. The threads of both the distal and proximal sections are self-tapping. A guide bore for a guide wire extends the entire length of the screw. Two drive recesses are disposed in the proximal screw end on opposite sides of the guide bore for engagement by a two-pin screwdriver. The unthreaded intermediate section radially fills the bone bore in which it is implanted to provide lateral stability for the bone screw.

US Patent:

51299062, Jul 14, 1992

Filed:

Sep 8, 1989

Appl. No.:

7/404378

Inventors:

Randall D. Ross - Largo FL
Stephen J. Snyder - Tarzana CA
Sam R. Marchand - Dunedin FL

Assignee:

Linvatec Corporation - Largo FL

International Classification:

A61B 1708

US Classification:

606 77

Abstract:

A cannulated bioabsorbable tack has annular ribs configured to enhance fixation to tissue, such as bone, and is particularly effective for attaching soft tissue to bone, such as ligaments or muscles in the shoulder. Apparatus and method for deploying the tack facilitate arthroscopic surgical procedures for attaching or joining tissue.