David R Tuttle

US Patent:

6977000, Dec 20, 2005

Filed:

Jun 30, 2003

Appl. No.:

10/610460

Inventors:

Thomas M. Vanasse - Thomaston CT, US
David Robert Tuttle - Memphis TN, US
Marc Gary Weissman - Warsaw IN, US

Assignee:

DePuy products, Inc. - Warsaw IN

International Classification:

A61F002/32

US Classification:

623 2242, 623 2245

Abstract:

A modular trial neck segment is utilized for trialing a hip prosthesis for a total hip arthroplasty. The modular trial neck segment is preferably, but not necessarily, utilized for trialing a hip prosthesis for a total hip arthroplasty. The trial neck segment includes a mount attachable to a stem or broach, and a neck that is translatable on the mount for providing various neck offsets with respect to the mount and/or broach. Neck offset is changed via movement of the neck in a single plane of motion. This facilitates the use of the subject invention in minimally invasive arthroplasty wherein working dimensions are small. The present design replicates the biomechanics of the neck region of the implant. The mount and slidable neck provide a plurality of neck offsets and/or neck lengths for trialing a final prosthesis in a single device.

US Patent:

7966995, Jun 28, 2011

Filed:

Sep 5, 2007

Appl. No.:

11/850302

Inventors:

Gregory A. Lafferty - Plymouth IN, US
David J. Lawrence - South Bend IN, US
David J. Tuttle - South Bend IN, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F02M 37/04
F02M 37/00

US Classification:

123511, 60 39281

Abstract:

A system and method provide dual level pressurization control of a fuel supply system based on whether fuel is being supplied to one or more secondary fuel loads. Fuel pump discharge backpressure is maintained above either a first minimum pressure value or a lower second minimum pressure value by determining whether fuel is being supplied to one or more secondary fuel loads. The fuel pump discharge pressure is maintained above the first minimum pressure value if it is determined that fuel is being supplied to the one or more secondary loads. The fuel pump discharge backpressure is maintained above the lower second minimum pressure value if it is determined that fuel is not being supplied to the one or more secondary loads.

US Patent:

8403994, Mar 26, 2013

Filed:

Jan 19, 2011

Appl. No.:

13/009158

Inventors:

William J. Maloney - Palo Alto CA, US
J. David Blaha - Ann Arbor MI, US
C. Lowry Barnes - Little Rock AR, US
John M. Green - Arlington TN, US
David R. Tuttle - Memphis TN, US

Assignee:

Wright Medical Technology, Inc. - Arlington TN

International Classification:

A61F 2/38

US Classification:

623 2035, 623 2021, 623 2026, 623 2028, 623 2031, 623 2014

Abstract:

Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0. 74 and a lateral tibial aspect ratio of 0. 65 to 0. 68 for all sizes.

US Patent:

7261740, Aug 28, 2007

Filed:

Oct 29, 2003

Appl. No.:

10/696459

Inventors:

David R. Tuttle - Memphis TN, US
Vernon R. Hartdegen - Collierville TN, US
Stephen E. White - Cordova TN, US
Robert M. Fencl - Cordova TN, US
Robert H. Schmidt - Ft. Worth TX, US

Assignee:

Wright Medical Technology, Inc. - Arlington TN

International Classification:

A61F 2/38
A61F 2/30

US Classification:

623 2032

Abstract:

A knee prosthetic including a tibial component defining medial and lateral concavities shaped to receive medial and lateral femoral condyles of the femur. The concavities have first portions for contact with the condyles during normal knee flexion and second portions for contact with the condyles during deep, or high, knee flexion. The medial concavity can include a conforming boundary that encompasses at least the first and second portions, wherein an area inside the conforming boundary has a generally flat surface. The flat surface allows the medial femoral condyle to slide and rotate posteriorly during high knee flexion. The conforming boundary can have a generally triangular shape with an apex extending anteriorly and a relatively wider base extending posteriorly, wherein the apex includes the first portion and the base includes the second portion. The relatively wider base portion advantageously allows additional area for posteriorly directed articulating contact during high knee flexion.

US Patent:

20060241634, Oct 26, 2006

Filed:

Feb 21, 2006

Appl. No.:

11/358899

Inventors:

David Tuttle - Memphis TN, US
Brian Harris - Cordova TN, US

International Classification:

A61F 5/00

US Classification:

606086000

Abstract:

An anti-backout stylus comprising a stylus and a locking stylus holder. The locking stylus holder engages the stylus at a series of discrete positions during insertion of the stylus into the holder. The locking stylus holder prevents inadvertent backing out of the stylus by preventing the stylus from being withdrawn to a previous one of the discrete positions. The locking stylus holder can preferably be selectively disengaged from the stylus to allow for selective withdrawal of the stylus. Each engagement of one of the discrete positions by the locking stylus holder preferably indicates a femoral size. The discrete positions are preferably defmed by detents formed on the stylus and a stop member on the locking stylus holder. The locking stylus holder can be provided on an anterior rough cut guide, with the anterior rough cut guide preferably mountable on an intramedullary rod.

US Patent:

20110082559, Apr 7, 2011

Filed:

Oct 6, 2009

Appl. No.:

12/574009

Inventors:

Vernon R. Hartdegen - Collierville TN, US
David Tuttle - Memphis TN, US

Assignee:

WRIGHT MEDICAL TECHNOLOGY, INC. - Arlington VA

International Classification:

A61F 2/38

US Classification:

623 2032

Abstract:

An orthopedic prosthesis includes a tibial implant and a tibial insert. The tibial implant includes an upper surface, a medial side, a lateral side and a first locking structure provided on the upper surface where the medial side and the lateral side of the tibial implant are defined by a medial-lateral midline. The tibial insert includes a second locking structure provided on its bottom surface. The first and second locking structures are configured for engaging each other along an engagement direction vector when the tibial insert is inserted into the tibial base towards the posterior side. The engagement direction vector is angled away from the medial-lateral midline of the tibial implant towards the medial side of the tibial implant by a predetermine angle.

US Patent:

20130046385, Feb 21, 2013

Filed:

Oct 24, 2012

Appl. No.:

13/659264

Inventors:

David Robert Tuttle - Memphis TN, US

Assignee:

WRIGHT MEDICAL TECHNOLOGY, INC. - Arlington TN

International Classification:

A61F 2/38

US Classification:

623 2034

Abstract:

An orthopedic prosthesis includes a tibial implant and a tibial insert. The tibial implant includes an upper surface, a medial side, a lateral side and a first locking structure provided on the upper surface where the medial side and the lateral side of the tibial implant are defined by a medial-lateral midline. The tibial insert includes a second locking structure provided on its bottom surface. The first and second locking structures are configured for engaging each other along an engagement direction vector when the tibial insert is inserted into the tibial base towards the posterior side. The engagement direction vector is angled away from the medial-lateral midline of the tibial implant towards the medial side of the tibial implant by a predetermine angle.

US Patent:

20130345820, Dec 26, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/840931

Inventors:

William J. Maloney - Palo Alto CA, US
J. David Blaha - Ann Arbor MI, US
C. Lowry Barnes - Little Rock AR, US
John M. Green - Arlington TN, US
David R. Tuttle - Memphis TN, US

Assignee:

WRIGHT MEDICAL TECHNOLOGY, INC. - Arlington TN

International Classification:

A61F 2/38

US Classification:

623 2031

Abstract:

Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.