Nicholas F Theodore

US Patent:

8010181, Aug 30, 2011

Filed:

Feb 16, 2007

Appl. No.:

11/676023

Inventors:

David W. Smith - Scottsdale AZ, US
Alan M. Pitt - Phoenix AZ, US
Nicholas Theodore - Phoenix AZ, US
Neil Crawford - Tempe AZ, US

Assignee:

Catholic Healthcare West - Phoenix AZ

International Classification:

A61B 5/05

US Classification:

600424, 600411, 600427

Abstract:

The present invention concerns a system for utilizing radio frequency signals to dynamically determine the location of a medical device throughout a procedure and to improve navigation of the medical device. For these purposes, a plurality of RF receivers are mounted at operative locations in the operating room and operate on the same clock signal. The system also utilizes a diagnostic medical image such as an MRI, and overlays the position feedback signal on the image. This allows, for example, a surgeon to pick a desired spot on the diagnostic image, and then cause a robotic arm driven device to be moved to that particular spot inside the human body.

US Patent:

8219177, Jul 10, 2012

Filed:

Aug 13, 2007

Appl. No.:

11/838027

Inventors:

David W. Smith - Scottsdale AZ, US
Alan M. Pitt - Scottsdale AZ, US
Nicholas Theodore - Phoenix AZ, US
Neil R. Crawford - Tempe AZ, US

Assignee:

Catholic Healthcare West - Phoenix AZ

International Classification:

A61B 5/05

US Classification:

600424, 600411, 600427

Abstract:

A method and system for performing invasive procedures includes a surgical robot which is controlled by a guidance system that uses time of flight calculations from RF transmitters embedded in the robot, surgical instrument, and patient anatomy. Sensors around the room detect RF transmissions emitted by the RF transmitters and drive the robot according to a preprogrammed trajectory entered into the guidance system.

US Patent:

8219178, Jul 10, 2012

Filed:

Aug 27, 2007

Appl. No.:

11/845557

Inventors:

David W. Smith - Scottsdale AZ, US
Alan M. Pitt - Scottsdale AZ, US
Nicholas Theodore - Phoenix AZ, US
Neil R. Crawford - Tempe AZ, US

Assignee:

Catholic Healthcare West - Phoenix AZ

International Classification:

A61B 5/05

US Classification:

600424, 600411, 600427

Abstract:

A method and system for performing invasive procedures includes a surgical robot which is controlled by a guidance system that uses time of flight calculations from RF transmitters embedded in the robot, surgical instrument, and patient anatomy. Sensors around the room detect RF transmissions emitted by the RF transmitters and drive the robot according to a preprogrammed trajectory entered into the guidance system.

US Patent:

8556944, Oct 15, 2013

Filed:

Jul 31, 2007

Appl. No.:

11/888330

Inventors:

Michael A. Dube - Great Falls MT, US
Frederick Marciano - Phoenix AZ, US
Randall Porter - Phoenix AZ, US
Nicholas Theodore - Phoenix AZ, US
Eeric Truumees - Southfield MI, US
Christopher McDonnell - Sandy Hook CT, US
Daniel F. Justin - Logan UT, US
Chad W. Lewis - Logan UT, US

Assignee:

Stryker Spine

International Classification:

A61B 17/80

US Classification:

606282, 606289, 606290, 606295

Abstract:

A spinal plating system for vertebral fixation includes a plate, a compression screw, multiple fixation members and polyaxially adjustable locking rings. The plate is shaped to conform to the curvature of the spine and the surfaces of the vertebral bodies. The compression screw fits through an insert, and together they are guided by the plate as the screw is driven into one of the vertebrae, producing compression between the adjacent vertebrae. A retaining lip on the plate prevents backout of the compression screw. The polyaxial locking rings can be polyaxially pivoted to attain a desired orientation, and are lockable to the plate to maintain the orientation. The fixation members fit through openings in the polyaxial locking rings and the plate to fix the plate to the vertebrae. Locking the polyaxial locking rings fixes the position of the fixation members relative to the plate, and prevents backout of the fixation members.

US Patent:

20100106199, Apr 29, 2010

Filed:

Jun 16, 2009

Appl. No.:

12/485183

Inventors:

Anna G.U. Sawa - Phoenix AZ, US
Seungwon Baek - Phoenix AZ, US
Neil R. Crawford - Tempe AZ, US
Phillip M. Reyes - Mesa AZ, US
Sam Safavi-Abbasi - Oklahoma City OK, US
Nicholas Theodore - Phoenix AZ, US

International Classification:

A61B 17/86

US Classification:

606304

Abstract:

A cannulated and possibly fenestrated device for injection of material into bone can be dangerous because large, uncontrolled pressures are introduced during injection into a somewhat closed system, and material may extrude undesirably or emboli may be introduced. Methods and devices are described for providing venting of pressure upon injection of material through cannulated and possibly fenestrated screws. The first method involves a bone screw and/or anchor device that includes multiple channels to allow material to flow in through one channel and out through another channel. The second method involves a plunger that can force material into bone if advanced or lessen pressure if withdrawn. The third method involves usage of two separate screws. Material is alternately injected or withdrawn from each screw to cause material to flow from one screw to the other in a controlled way that creates a uniform or asymmetrical distribution of material as desired.

US Patent:

20100217336, Aug 26, 2010

Filed:

Feb 26, 2009

Appl. No.:

12/393605

Inventors:

Neil R. Crawford - Tempe AZ, US
Nicholas Theodore - Phoenix AZ, US
Seungwon Baek - Phoenix AZ, US
Anna G.U. Sawa - Tempe AZ, US

Assignee:

Catholic Healthcare West (CHW) - Phoenix AZ

International Classification:

A61B 17/56
G06F 19/00
G06F 17/50
G06G 7/48

US Classification:

606 86 R, 700 97, 703 6

Abstract:

A system for planning a spine surgery, comprising a haptic interface capable of providing force feedback to the user and a computer adapted to simulate a surgical procedure by responding to inputs from the haptic interface and outputting haptic feedback to the haptic interface is provided.The system further comprising a rapid prototyping unit including a unit that is adapted to create models of the anatomical region where the surgical procedure will be performed in its current unoperated condition and in the predicted postoperative condition. Further the rapid prototyping unit is adapted to create a three dimensional guide to be used in the surgical procedure as well as suggest revisions to the surgical procedure. The system further comprises a computer that simulates loading of the spine and planned implanted hardware using finite element software.

US Patent:

20110106166, May 5, 2011

Filed:

Apr 15, 2010

Appl. No.:

12/760816

Inventors:

Tom Keyer - West Chester PA, US
Eric McDivitt - West Chester PA, US
Joseph Capozzoli - West Chester PA, US
Christoph Meyer - Houston TX, US
Nicholas Theodore - Paradise Valley AZ, US
Charles Kuntz - Cincinnati OH, US

International Classification:

A61B 17/70
A61B 17/88

US Classification:

606264, 606279

Abstract:

A revision connector is configured to couple a new spine fixation rod to a previously implanted spine fixation rod that is secured to a plurality of vertebrae. The new spine fixation rod can be implanted and secured to vertebrae that are caudal and/or cranial with respect to the previously secured vertebrae.

US Patent:

20110202135, Aug 18, 2011

Filed:

Mar 23, 2009

Appl. No.:

12/933484

Inventors:

Seungwon Baek - Phoenix AZ, US
Anna Sawa - Chandler AZ, US
Sam Safavi-Abbasi - Oklohoma City OK, US
Phillip M. Reyes - Mesa AZ, US
Nicholas Theodore - Paradise Valley AZ, US
Neil R. Crawford - Tempe AZ, US

International Classification:

A61F 2/44

US Classification:

623 1716

Abstract:

An implantable device assembly including a bone fusion cage assembly having first and second housing members and a biasing member. The first housing member defines a first contact surface. The second housing member defines a second contact surface that faces generally opposite the first contact surface. The biasing member is operable to bias the first and second housing members away from each other into an expanded position. Each of the first and second housing members may include at least one pivot portion that defines the contact surfaces. The implantable device assembly may also include a plate assembly that is mounted to the bone fusion cage assembly.