Richard W Holt

20070233064, Oct 4, 2007

Feb 17, 2006

11/356292

Richard Holt - Prospect KY, US

Holt Development L.L.C. - Louisville KY

A61F 2/30

606061000

Apparatus for connecting and stabilizing adjacent vertebral segments, comprising a flexible composite connecting rod extending between the segments, and connection devices for connecting the rod to the vertebral segments. The rod comprises a rod member formed of a flexible plastic material having a predetermined compression strength, and a high tensile strength, low stretch, flexible reinforcing element extending longitudinally through the entire length of the rod member and being bonded thereto. The reinforcing element may be in the form of a single cord, rope, braid or monofilament, a plurality of substantially parallel cords, ropes, braids or monofilaments, or a tubular cord, rope or braid extending through the rod member.

20080021469, Jan 24, 2008

Jun 18, 2007

11/812363

Richard Holt - Prospect KY, US

A61B 17/58
A61B 17/56

606061000, 606100000, 606073000

Apparatus for connecting and stabilizing adjacent vertebral segments, comprising a flexible composite connecting rod extending between the segments, and connection devices for connecting the rod to the vertebral segments. The rod comprises a rod member formed of a flexible plastic material having a predetermined compression strength, and a high tensile strength, low stretch, flexible reinforcing element extending longitudinally through the entire length of the rod member. The reinforcing element may be in the form of a single cord, rope, braid or monofilament, a plurality of substantially parallel cords, ropes, braids or monofilaments, or a tubular cord, rope or braid extending through the rod member in slidable relation or bonded thereto.

20080269804, Oct 30, 2008

Apr 30, 2008

12/149397

Richard T. Holt - Prospect KY, US

Holt Development L.L.C. - Louisville KY

A61B 17/70

606254, 606246, 606250, 606278

Apparatus for connecting and stabilizing adjacent vertebral segments, comprising a flexible composite connecting rod extending between the segments, and connection devices for connecting the rod to the vertebral segments. The rod comprises a rod member formed of a flexible plastic material having a predetermined compression strength, and a high tensile strength, low stretch, flexible reinforcing element extending longitudinally through the entire length of the rod member. The reinforcing element may be in the form of a single cord, rope, braid or monofilament, a plurality of substantially parallel cords, ropes, braids or monofilaments, or a tubular cord, rope, braid or woven or wire mesh strain relief device extending through the rod member in slidable relation or bonded thereto.

20100217272, Aug 26, 2010

Feb 20, 2009

12/379441

David B. Baughman - Louisville KY, US
Richard B. Holt - Prospect KY, US

Holt Development LLC - Louisville KY

A61B 17/58

606 99

A method and apparatus for positioning an implant between spinous processes, generally comprising a cannula for percutaneous insertion between the spinous processes, an obturator that can be removably mounted within the cannula and is slidable therein so that an inner end thereof can moved inwardly beyond an inner end of the cannula, and an implant that is constructed to be movable within the cannula when the obturator is removed therefrom for positioning between the spinous processes. In accordance with the method, an insertion is made through the skin on one side of the rear portion of the spine, the cannula having the obturator slidably movable therein is inserted inwardly through the incision so that the inner end of the cannula is positioned between the spinous processes, the obturator is removed from the cannula, the implant is inserted within the cannula and moved therein to a position between the spinous processes, and the cannula is removed from the implant. The implant may be retained between the spinous processes when the cannula is removed therefrom by inflating the implant or mechanically expanding it.

53953720, Mar 7, 1995

Sep 7, 1993

8/117507

Richard T. Holt - Louisville KY
Catalina J. Carroll - Memphis TN
Robert A. Farris - Memphis TN
Troy A. McDonald - Millington TN

Danek Medical, Inc. - Memphis TN

A61B 1756

606 61

A device for holding in compression, a bone graft placed in the space between two vertebral bodies and from which a diseased or injured vertebral body has been removed, comprises an elongate space-spanning plate of implant grade material having a concavo-convex cross section, with an integral prong at each end to be driven into the vertebral bodies. Each prong has a proximal portion and a distal portion, with each portion having an inboard surface facing an inboard surface of the other prong, the inboard surfaces converging as they extend from the distal ends of the prongs toward the concave surface of the plate to urge the vertebral bodies toward each other as the prongs are driven into them. The outboard surface at the proximal portion of the prong is parallel to the inboard surface and at the distal portion converges from the proximal portion to intersection with the inboard surface at the distal end of the prong. The plate has two holes in it adjacent each end for reception of bone screws but which are used during installation of the staple for reception of the locating posts of an impactor tool to properly position the tool for striking it with a mallet to drive the staple prongs into the vertebra.

55400965, Jul 30, 1996

Jun 7, 1994

8/257322

Michael W. Woodcock - Laurel MD
Richard J. Holt - Westborough MA

Washington Suburban Sanitary Commission - Laurel MD

G01N 2904

73579

A method for detecting degraded pipe used in water mains monitors detected sound waves and observes the characteristics of those waves. Water main pipes have coiled therearound highly tensioned steel wire which holds the concrete comprising the pipes in compression. When the steel wire is corroded by water seeping through mortar encapsulating the pipe, the steel wire eventually ruptures, thus relieving compression in the concrete adjacent the rupture. Sonic and ultrasonic sound waves traversing the concrete of pipes have different characteristics for pipe in good condition as compared to the characteristics of sound waves traversing pipe in poor condition due to decompression and/or other causes. The sound waves in pipe in poor condition travel slower with shear waves having less amplitude and reflections occurring at later times. In addition, the frequency domain characteristics of pipe in poor condition differ from the frequency domain characteristics of pipe in good condition.