US Patent No: 5,540,696

Number of patents in Portfolio can not be more than 2000

Instrumentation for use in orthopaedic surgery

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The instrumentation set of this invention assists the surgeon in selecting the proper implant components, in determining the amount of distal bone to resect, and in aligning instrumentation designed to resect the bone. The instrumentation set provides numerous systems for verifying to the surgeon that he has correctly aligned the instruments prior to removing any bone. The set includes a rotational alignment guide, which aids the surgeon in establishing the appropriate rotational alignment for the knee as determined by reference to standard femoral landmarks such as the posterior condyles and epicondyles. The rotational alignment guide includes a slot for guiding a saw blade for removal of the posterior condyles of the femur. The set further includes a tensor designed to tense the knee joint in flexion and extension. The tensor is activated by a torque wrench so that a measured amount of tension force can be applied to the joint. The tensor is configured to slidably carry sizing rods, which contact the femur and include a plurality of markings, which relate to the size of the femur as well as the spacing between the femur and tibia. This information is used by the surgeon to select the proper size of femoral and tibial articulate surface components. The sizing rods are connected to the tensor when the tibial is in flexion and in extension, which will indicate to the surgeon any variation required in the amount of bone to be resected.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ZIMMER TECHNOLOGY, INC.WARSAW, IN561

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bays, Rodney Pierceton, IN 14 1290
Booth, Jr Robert E Philadelphia, PA 5 491
Miller, Timothy R Arlington, VA 61 851
Sisk, Billy N Claypool, IN 12 410
Stalcup, Gregory C Columbia City, IN 43 2045

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ZIMMER TECHNOLOGY, INC. (4)
4,567,886 Flexion spacer guide for fitting a knee prosthesis 111 1983
4,501,266 Knee distraction device 196 1983
5,344,423 Apparatus and method for milling bone 125 1992
5,342,368 Intramedullary universal proximal tibial resector guide 110 1992
 
HOWMEDICA OSTEONICS CORP. (3)
5,116,338 Apparatus for knee prosthesis 94 1991
5,213,112 Tension meter for orthopedic surgery 82 1992
5,417,695 Instrumentation for preparing a distal femur 93 1992
 
WRIGHT MEDICAL TECHNOLOGY, INC. (2)
5,364,401 External alignment system for preparing a femur for an implant 128 1992
5,342,367 Rotationally and angularly adjustable tibial cutting guide and method of use 83 1993
 
HOWMEDICA INTERNATIONAL S. DE R.L. (1)
5,454,816 Femoral cutting guide 183 1994
 
MATHYS AG BETTLACH (1)
4,938,762 Reference system for implantation of condylar total knee prostheses 99 1988
 
QUEEN'S UNIVERSITY, KINGSTON, ONTARIO CANADA K7L 3N6 A NON PROFIT EDUCATIONAL CORP (1)
4,574,794 Orthopaedic bone cutting jig and alignment device 132 1984
 
SMITH & NEPHEW RICHARDS INC. (1)
5,282,803 Instrumentation for long stem surgery 112 1992
 
ZIMMER ORTHOPAEDIC SURGICAL PRODUCTS, INC. (1)
4,655,197 Lavage system with variable frequency, flow rate and pressure 77 1982
 
Other [Check patent profile for assignment information] (3)
4,566,448 Ligament tensor and distal femoral resector guide 82 1983
4,703,751 Method and apparatus for resecting a distal femoral surface 202 1986
4,907,578 Method and instruments for resection of the distal femur 27 1988

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CONFORMIS, INC. (33)
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7,534,263 Surgical tools facilitating increased accuracy, speed and simplicity in performing joint arthroplasty 115 2004
8,066,708 Patient selectable joint arthroplasty devices and surgical tools 39 2007
8,083,745 Surgical tools for arthroplasty 56 2008
8,105,330 Patient selectable joint arthroplasty devices and surgical tools 36 2008
8,062,302 Surgical tools for arthroplasty 38 2008
7,981,158 Patient selectable joint arthroplasty devices and surgical tools 83 2008
8,343,218 Methods and compositions for articular repair 27 2008
8,122,582 Surgical tools facilitating increased accuracy, speed and simplicity in performing joint arthroplasty 27 2009
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8,500,740 Patient-specific joint arthroplasty devices for ligament repair 9 2010
8,551,099 Surgical tools for arthroplasty 4 2010
8,366,771 Surgical tools facilitating increased accuracy, speed and simplicity in performing joint arthroplasty 27 2010
8,337,501 Patient selectable joint arthroplasty devices and surgical tools 41 2010
8,768,028 Methods and compositions for articular repair 0 2010
8,585,708 Patient selectable joint arthroplasty devices and surgical tools 0 2010
8,623,026 Patient selectable joint arthroplasty devices and surgical tools incorporating anatomical relief 2 2011
8,657,827 Surgical tools for arthroplasty 0 2011
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ARTHROSURFACE INCORPORATED (21)
6,610,067 System and method for joint resurface repair 75 2001
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7,510,558 System and method for joint resurface repair 28 2003
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7,896,885 Retrograde delivery of resurfacing devices 12 2004
8,361,159 System for articular surface replacement 4 2005
7,901,408 System and method for retrograde procedure 12 2005
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7,713,305 Articular surface implant 14 2006
7,604,641 System and method for joint resurface repair 10 2006
7,951,163 Retrograde excision system and apparatus 10 2006
8,523,872 Tibial resurfacing system 1 2007
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7,896,883 Bone resurfacing system and method 10 2009
7,857,817 System and method for joint resurface repair 10 2009
8,147,559 System and method for joint resurface repair 7 2009
8,388,624 Trochlear resurfacing system and method 4 2010
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8,556,902 System and method for retrograde procedure 0 2011
 
BONUTTI SKELETAL INNOVATIONS LLC (18)
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8,133,229 Knee arthroplasty method 9 2003
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7,749,229 Total knee arthroplasty through shortened incision 22 2005
7,708,740 Method for total knee arthroplasty and resecting bone in situ 18 2005
7,708,741 Method of preparing bones for knee replacement surgery 31 2005
7,931,690 Method of resurfacing an articular surface of a bone 14 2007
7,828,852 Inlaid articular implant 11 2007
7,837,736 Minimally invasive surgical systems and methods 19 2007
8,425,522 Joint replacement method 5 2010
8,784,495 Segmental knee arthroplasty 0 2010
8,641,726 Method for robotic arthroplasty using navigation 4 2013
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8,623,030 Robotic arthroplasty system including navigation 4 2013
 
SMITH & NEPHEW, INC. (14)
7,547,307 Computer assisted knee arthroplasty instrumentation, systems, and processes 40 2002
7,371,240 Method of arthroplasty on a knee joint and apparatus for use in same 66 2002
7,237,556 Image-guided fracture reduction 22 2003
7,862,570 Surgical positioners 2 2003
7,662,156 Systems and processes for determining proper superior-inferior joint line positioning 3 2004
7,764,985 Surgical navigation system component fault interfaces and related processes 5 2004
7,794,467 Adjustable surgical cutting systems 37 2004
7,477,926 Methods and apparatuses for providing a reference array input device 19 2005
8,109,942 Computer-aided methods, systems, and apparatuses for shoulder arthroplasty 2 2005
8,177,788 In-line milling system 0 2006
8,092,462 Spacer for use in arthroplasty on a knee joint 27 2006
8,323,287 Apparatus for use in arthroplasty on a knee joint 2 2006
8,491,597 Surgical positioners 0 2010
8,690,882 Method of arthroplasty on a knee joint and apparatus for use in same 0 2011
 
DEPUY PRODUCTS, INC. (9)
7,527,631 Arthroplasty sizing gauge 51 2003
7,329,260 Kit, guide and method for locating distal femoral resection plane 3 2003
8,105,327 Punch, implant and associated method 0 2004
7,879,042 Surface replacement extractor device and associated method 1 2004
7,615,055 Method and apparatus for use in balancing ligaments of a knee 25 2005
8,197,489 Knee ligament balancer 0 2008
8,070,755 Joint arthroplasty kit and method 0 2009
8,182,541 Extended articulation orthopaedic implant 0 2009
8,282,649 Extended articulation orthopaedic implant 0 2009
 
SYNVASIVE TECHNOLOGY, INC. (8)
7,442,196 Dynamic knee balancer 62 2004
7,578,821 Dynamic knee balancer with pressure sensing 29 2004
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8,211,041 Sensing force during partial and total knee replacement surgery 5 2009
8,506,571 Knee balancing for revision procedures 1 2010
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ZIMMER, INC. (8)
6,022,377 Instrument for evaluating balance of knee joint 52 1998
7,442,172 Ligament tension gauge 1 2002
8,167,888 Tibial spacer blocks and femoral cutting guide 21 2004
7,780,671 Bone resection apparatus and method for knee surgery 3 2006
8,454,616 Method and apparatus for achieving correct limb alignment in unicondylar knee arthroplasty 2 2006
8,231,634 Methods of predetermining the contour of a resected bone surface and assessing the fit of a prosthesis on the bone 12 2007
8,118,811 Apparatus for knee surgery and method of use 3 2009
8,747,410 Patellar resection instrument with variable depth guide 0 2010
 
DEPUY SYNTHES PRODUCTS, LLC (7)
8,366,713 Arthroplasty instruments and associated method 0 2003
8,475,499 Rod to rod connectors and methods of adjusting the length of a spinal rod construct 1 2007
8,444,646 Bone preparation tool kit and associated method 0 2009
8,394,104 Method and apparatus for use in balancing ligaments of a knee 0 2009
8,545,506 Cutting guide for use with an extended articulation orthopaedic implant 0 2009
8,562,617 Knee ligament balancer 0 2012
8,734,454 Method and apparatus for use in balancing ligaments of a knee 0 2013
 
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY (7)
8,265,730 Assessing the condition of a joint and preventing damage 27 2001
8,036,729 Assessing the condition of a joint and devising treatment 61 2004
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RE43282 Assessing the condition of a joint and devising treatment 55 2008
8,369,926 Assessing the condition of a joint and devising treatment 25 2011
8,306,601 Assessing the condition of a joint and devising treatment 40 2011
 
ALEXANDRIA RESEARCH TECHNOLOGIES, LLC (5)
6,482,209 Apparatus and method for sculpting the surface of a joint 122 2001
6,723,102 Apparatus and method for minimally invasive total joint replacement 43 2002
7,115,131 Apparatus and method for sculpting the surface of a joint 128 2002
7,604,637 Apparatus and method for minimally invasive total joint replacement 0 2003
7,896,922 Implants for partial knee arthroplasty 3 2009
 
BIOMET MANUFACTURING, LLC (5)
7,326,218 Bone plate and retractor assembly 2 2003
7,488,324 Femoral guide for implanting a femoral knee prosthesis 35 2003
7,959,637 Distal femoral cutting guide 21 2007
8,137,361 Method and apparatus for constant force tensor/ligament balancer 1 2008
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DEPUY (IRELAND) (5)
8,740,817 Device and method for determining forces of a patient's joint 0 2009
8,721,568 Method for performing an orthopaedic surgical procedure 0 2009
8,597,210 System and method for displaying joint force data 0 2009
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8,551,023 Device and method for determining force of a knee joint 0 2009
 
HOWMEDICA OSTEONICS CORP. (5)
7,608,112 Hip arthroplasty trialing apparatus and method 4 2004
8,740,910 Modular anterior-posterior femoral sizer 0 2006
7,704,253 Single use resection guide 32 2006
7,686,812 Method for setting the rotational position of a femoral component 5 2006
8,690,881 Femoral component and instrumentation 0 2010
 
ZIMMER TECHNOLOGY, INC. (5)
6,478,799 Instruments and methods for use in performing knee surgery 136 2000
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7,641,661 Adjustable resection guide 3 2003
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WARSAW ORTHOPEDIC, INC. (4)
7,011,658 Devices and methods for spinal compression and distraction 44 2002
7,749,231 Instruments and techniques for separating bony structures 18 2003
7,862,618 Expandable vertebral body implants and methods of use 2 2006
8,523,874 Instruments and techniques for separating bony structures 0 2010
 
JOHNSON & JOHNSON PROFESSIONAL, INC. (3)
6,056,756 Femoral tensing and sizing device 126 1998
6,106,529 Epicondylar axis referencing drill guide 127 1998
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ZIMMER GMBH (3)
7,527,630 Apparatus for the preparation of a femoral condyle 4 2004
7,686,813 Traction apparatus 1 2004
7,648,510 Adjustment apparatus 0 2004
 
DEPUY ACROMED, INC. (2)
7,172,561 Spreader tensiometer for measuring tension in an intervertebral disc space 4 2002
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GMEDELAWARE 2 LLC (2)
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ORTHALIGN, INC. (2)
8,057,479 Surgical orientation system and method 1 2009
8,118,815 Systems and methods for joint replacement 5 2011
 
PERCEPTION RAISONNEMENT ACTION EN MEDECINE (2)
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8,337,508 Distractor system 0 2006
 
VITRUVIAN ORTHOPAEDICS, LLC (2)
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6,520,964 System and method for joint resurface repair 248 2001
 
BEIJING MONTAGNE MEDICAL DEVICE CO., LTD. (1)
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Biomedical Engineering Trust I (1)
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BREVEXCO, S.P.R.L. (1)
7,805,852 Sighting instrument for determining the mechanical axis of the femur 1 2006
 
DEPUY ORTHOPAEDICS, INC. (1)
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DEPUY SPINE, INC. (1)
7,942,908 Adjustable length implant 4 2005
 
FINSBURY (DEVELOPMENT) LIMITED (1)
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Howmedia Osteonics Corp. (1)
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HYLIGHTER, INC. (1)
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MARTEC LLC (1)
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MICROPORT ORTHOPEDICS HOLDINGS INC. (1)
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ORTHOSOFT INC. (1)
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ROMULO GUERRERO (1)
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STRYKER CORPORATION (1)
D696782 Joint stabilizing instrument 0 2013
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (1)
6,648,891 System and method for fusing spinal vertebrae 65 2001
 
WYMENGA, ATE B. (1)
7,101,377 Device for optimizing a knee endoprosthesis 0 2001
 
ZIMMER KABUSHIKI KAISHA (1)
7,156,853 Measuring apparatus for total knee replacement operation 61 2003
 
ZIMMER ORTHOBIOLOGICS, INC. (1)
6,916,325 Femoral sizing guide 9 2002
 
Other [Check patent profile for assignment information] (6)
6,942,700 Instruments and methods for use in performing knee surgery 8 2002
8,092,463 Distraction device used for osteogenesis 0 2003
7,273,500 Instruments and methods for use in performing knee surgery 0 2004
8,834,486 Femoral guide for implanting a femoral knee prosthesis 0 2012
8,814,943 Bone preparation tool kit and associated method 0 2013
8,834,490 Method for robotic arthroplasty using navigation 0 2013