John C Donohoe

US Patent:

20200138494, May 7, 2020

Filed:

Sep 30, 2019

Appl. No.:

16/588114

Inventors:

- Leesburg VA, US
Megan Carnes - Leesburg VA, US
John Donohoe - Morrisville NC, US

International Classification:

A61B 17/86
A61B 17/88
A61B 17/70

Abstract:

A bone screw for attaching a spinal prosthetic or bone plate to bone includes a tubular body having open proximal and distal ends. The open proximal and distal ends define a passageway therethrough. A shaft is insertable into the passageway and includes a distal tip that extends beyond the open distal end. The shaft is insertable through a lumen of a head of the bone screw. A gap is defined between a distal surface of the head and a proximal end of the tubular body. The shaft is rotationally fixed with the tubular body and the head. The head is repositionable with respect to the shaft such that an acute angle is defined between the head and a longitudinal axis of the shaft.

US Patent:

20170246006, Aug 31, 2017

Filed:

Feb 26, 2016

Appl. No.:

15/054452

Inventors:

- Leesburg VA, US
John Donohoe - Sterling VA, US
Scott Jones - McMurray PA, US

International Classification:

A61F 2/44
A61F 2/46

Abstract:

An insertion instrument for expandable spinal implants includes an elongate member, a shuttle, and a worm gear. The elongate member includes a handle portion of a proximal end and an end effector on a distal end, wherein the end effector is configured to be releasably engaged to an expandable spinal implant. The shuttle is slidably disposed within a cavity defined within the end effector and includes a wedged shaped distal end configured to engage an expandable spinal implant. The worm gear is rotatably disposed within the cavity defined in the end effector and is in mechanical communication with the shuttle, such that rotation of the worm gear effectuates movement of the shuttle. Distal movement of the shuttle effectuates articulation of an expandable spinal implant. A method of performing surgery is also disclosed.

US Patent:

20170143506, May 25, 2017

Filed:

Feb 8, 2017

Appl. No.:

15/427774

Inventors:

- Leesburg VA, US
Larry McClintock - Gore VA, US
Adam Wassinger - Portland OR, US
Scott Jones - McMurray PA, US
Jennifer Moore - Summit Point WV, US
John Donohoe - Sterling VA, US

International Classification:

A61F 2/44
A61F 2/30
A61F 2/46

Abstract:

An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, a ratchet mechanism, and a plurality of bone screws. The upper body and lower body are pivotably affixed at a first end and are capable of movement relative to each other. The ratchet mechanism is slidably disposed on one of the upper and lower body and is capable of engaging the opposite one of the upper and lower body thereby permitting movement of the upper and lower body relative to each other in a first direction, but not in a second direction. An insertion instrument capable of being attached to the expandable spinal instrument and a method of performing spinal surgery is also disclosed.

US Patent:

20170112555, Apr 27, 2017

Filed:

Oct 24, 2016

Appl. No.:

15/332225

Inventors:

- Leesburg VA, US
Megan Carnes - Leesburg VA, US
John Donohoe - Sterling VA, US

International Classification:

A61B 17/86
A61B 17/70

Abstract:

A bone screw for attaching a spinal prosthetic or bone plate to bone includes a tubular body having open proximal and distal ends. The open proximal and distal ends define a passageway therethrough. A shaft is insertable into the passageway and includes a distal tip that extends beyond the open distal end. The shaft is insertable through a lumen of a head of the bone screw. A gap is defined between a distal surface of the head and a proximal end of the tubular body. The shaft is rotationally fixed with the tubular body and the head. The head is repositionable with respect to the shaft such that an acute angle is defined between the head and a longitudinal axis of the shaft.

US Patent:

20160100951, Apr 14, 2016

Filed:

Oct 9, 2014

Appl. No.:

14/510598

Inventors:

- Leesburg VA, US
Larry McClintock - Gore VA, US
Adam Wassinger - Portland OR, US
Scott Jones - McMurray PA, US
Jennifer Moore - Summit Point WV, US
John Donohoe - Sterling VA, US

International Classification:

A61F 2/44

Abstract:

An expandable spinal implant configured for positioning within a space between adjacent vertebral bodies includes an upper body, a lower body, a ratchet mechanism, and a plurality of bone screws. The upper body and lower body are pivotably affixed at a first end and are capable of movement relative to each other. The ratchet mechanism is slidably disposed on one of the upper and lower body and is capable of engaging the opposite one of the upper and lower body thereby permitting movement of the upper and lower body relative to each other in a first direction, but not in a second direction. An insertion instrument capable of being attached to the expandable spinal instrument and a method of performing spinal surgery is also disclosed.

US Patent:

20140114417, Apr 24, 2014

Filed:

Oct 22, 2013

Appl. No.:

14/060060

Inventors:

- Leesburg VA, US
Adam Wassinger - Reston VA, US
Todd Wallenstein - Ashburn VA, US
John Donohoe - Sterling VA, US

International Classification:

A61F 2/46
A61F 2/44

US Classification:

623 1716

Abstract:

An insertion device includes a first engagement arm having a first body portion and a first proximal extension, a second engagement arm including a second body portion and a second proximal extension, and an adjustment mechanism. The second proximal extension is disposed about the first proximal extension and is slidable therealong to vary a spacing between the first and second engagement arms. The adjustment mechanism includes an adjustment screw rotatably coupled to the first proximal extension and an adjustment cylinder coupled to the second proximal extension. The adjustment cylinder is configured to receive the adjustment screw in threaded engagement therewith such that rotation of the adjustment screw relative to the adjustment cylinder urges the second proximal extension to translate along the first proximal extension to vary the spacing between the first and second engagement arms.