Patents by Inventor J. David Blaha

J. David Blaha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10624751
    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.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: April 21, 2020
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20190046325
    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.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Applicant: MicroPort Orthopedics Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20190000633
    Abstract: A human knee prosthetic implant having a tibia component forming first and second medial concave surfaces and first and second lateral concave surfaces, and a femur component forming first and second medial convex surfaces and first and second lateral convex surfaces. The tibia and femur surfaces are formed to provide contact interaction in full extension, a mid flexion range and in a state of full flexion of the knee prosthetic implant.
    Type: Application
    Filed: December 29, 2016
    Publication date: January 3, 2019
    Inventor: J. David Blaha
  • Patent number: 10098748
    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.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 16, 2018
    Assignee: MicroPort Orthopedic Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20180064545
    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.
    Type: Application
    Filed: November 13, 2017
    Publication date: March 8, 2018
    Applicant: MICROPORT OTHOPEDIC HOLDINGS INC.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 9833324
    Abstract: A human knee prosthetic implant having a tibia component forming first and second medial concave surfaces and first and second lateral concave surfaces, and a femur component forming first and second medial convex surfaces and first and second lateral convex surfaces. The tibia and femur surfaces are formed to provide contact interaction in full extension, a mid flexion range and in a state of full flexion of the knee prosthetic implant.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: December 5, 2017
    Assignee: EVA15 LLC
    Inventor: J. David Blaha
  • Patent number: 9814586
    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.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 14, 2017
    Assignee: MicroPort Orthopedics Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20170189195
    Abstract: A human knee prosthetic implant having a tibia component forming first and second medial concave surfaces and first and second lateral concave surfaces, and a femur component forming first and second medial convex surfaces and first and second lateral convex surfaces. The tibia and femur surfaces are formed to provide contact interaction in full extension, a mid flexion range and in a state of full flexion of the knee prosthetic implant.
    Type: Application
    Filed: January 8, 2016
    Publication date: July 6, 2017
    Inventor: J. David Blaha
  • Publication number: 20160324645
    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.
    Type: Application
    Filed: July 1, 2016
    Publication date: November 10, 2016
    Applicant: MICROPORT ORTHOPEDIC HOLDINGS INC.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 9381088
    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.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 5, 2016
    Assignee: MicroPort Orthopedics Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20130345820
    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.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Applicant: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 8403994
    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.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: March 26, 2013
    Assignee: Wright Medical Technology, Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Publication number: 20120185055
    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.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 19, 2012
    Applicant: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 8043294
    Abstract: A femoral caliper having one or more anatomical referencing members for placement against portions of the femur, such as the anterior cortex and posterior portion of the femoral condyles, to measure the femur for sizing of the femoral component. A reference mark positioning guide of the femoral caliper is connected to the anatomical referencing member and is capable of guiding placement of a reference mark on the femur that facilitates positioning of the femoral component. The femoral caliper includes an adjustment mechanism capable of displacing the reference mark positioning guide relative to the anatomical referencing member. This allows adjustment of the position of the reference mark (and hence the femoral component) on the femur to account for the up or down sizing of the femoral component. Preferably, the adjustment mechanism adjusts the reference mark positioning guide in the anterior-posterior direction to allow balancing of the tightness or laxity of the selected component.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: October 25, 2011
    Assignee: Wright Medical Technology, Inc.
    Inventors: Robert M. Fencl, J. David Blaha, Vernon R. Hartdegen, William J. Maloney, Stephen E. White
  • Publication number: 20040249384
    Abstract: A compacting broach comprises an elongate body and a distal tip at a forward end of the body. The body plurality of corner edges corresponding to the corner edges of a prosthetic component, cutting teeth along the corner edges and side walls between the cutting teeth of adjacent corner edges. The side walls extend inwardly from the cutting teeth of adjacent corner edges and compact cancellous bone as the cutting teeth penetrate cortical bone during advancement of the broach in the intramedullary canal. The distal tip comprises a plurality of fins radial to a central longitudinal axis of the broach and extending longitudinally, distally from the body. The fins contact the side of the canal at locations about a central axis of the canal to center the broach in the canal prior to the cutting teeth engaging cortical bone as the broach is advanced therein.
    Type: Application
    Filed: January 26, 2004
    Publication date: December 9, 2004
    Inventors: J. David Blaha, Angelo DeLollis, Irina Timmerman, Henry Faber
  • Patent number: 5964808
    Abstract: A knee prosthesis including a tibial component for mounting to the proximal end of a tibia, and a femoral component for mounting to the distal end of a femur. At least the face surface of the medial condylar portion of the femoral component may be preferably substantially congruent with the face surface of a medial cavity in the upper surface of the tibial component so that substantially complete surface-to-surface contact between the face surface of the medial cavity in the upper surface of the tibial component and the face surface of the medial condylar portion of the femoral component is provided throughout a significant portion of the range of flexion of the knee joint.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: October 12, 1999
    Assignee: Wright Medical Technology, Inc.
    Inventors: J. David Blaha, Stephen E. White, Robert D. Paxson, Dennis J. Buchanan
  • Patent number: 4590930
    Abstract: Both a bone fixation device and a method for retrofitting this device in a conventional hollow, intramedullary nail are disclosed herein. The bone fixation device of the invention generally comprises at least one blade member having a top portion registrable with a blade slot provided in the body of the nail, and a bottom surface including a rail slot, as well as at least one wedge member having an inclined top surface for transmitting a blade extending force to the bottom surface of the blade member, as well as a rail which is slidably engageable with the blade member slot. The blade slot and wedge rail interlock to provide a positive retracting force on the blade when it is desired to remove the nail from a bone. Additionally, the wedge member includes a key which interlocks with the longitudinal slot which extends along the longitudinal axis of a conventional Kuntscher intramedullary nail in order to facilitate angular alignment of the blade member with the blade receiving slot in the nail.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: May 27, 1986
    Assignee: Lloyd A. Kurth
    Inventors: Lloyd A. Kurth, J. David Blaha