Pfizer Hospital Products Group, Inc.

Mako Surgical Corporation

Zimmer Technology, Inc.

University of Florida Research Foundation, Incorporated

University of Pittsburgh

Other

Pfizer Corporation

Howmedica Corp.

Boehringer Laboratories, Incorporated

Pfizer Hopsital Products Group, Inc.

Zimmer Gmbh

Dana C Mears

Charles C Edwards

Michael W Chapman

Martin Roche

Paul A Zwirkoski

Kevin Greig

Rony Abovitz

Hyosig Kang

Dennis Moses

Alon Mozes

Arthur E Quaid

Juan Salcedo

Peter L Ebbitt

Louis K Arata

Timothy Blackwell

Scott Illsley

William F Tapia

Binyamin Hajaj

Sherif Aly

Sandi Glauser

Maurice Ferre

Amardeep Singh Dugal

Jason Karl Otto

Amit Mistry

Randall E Hand

Thomas M Coon

Scott Arthur Banks

Rony A Abovitz

John R Boehringer

John Karpowicz

Robert D Krebs

Roy B Bogert

Alastair J T Clemow

Alastair J Clemow

Dean M J Acker

Sean Kerr

Steven B Brown

Thomas L Wickiewicz

Randal Hand

Dean Mj Acker

G Scott Sherman

Alastair Jt Clemow

Benjamin J Fregly

Roy Bogert

Scott G Sherman

A method for joint replacement is provided. A representation of a first bone is created, and a representation of a second bone is created. Bone preparation for implanting a first implant on the first bone is planned. The first bone to receive the first implant is prepared by manipulating a surgical tool to sculpt the first bone. Bone preparation for implanting a second implant on the second bone after preparing the first bone is planned. The second bone to receive the second implant is prepared by manipulating the surgical tool to sculpt the second bone.

Haptic guidance system and method

A surgical apparatus includes a surgical device, configured to be manipulated by a user to perform a procedure on a patient, and a computer system. The computer system is programmed to create a representation of an anatomy of a patient; to associate the anatomy and a surgical device with the representation of the anatomy; to manipulate the surgical device to perform a procedure on a patient by moving a portion of the surgical device in a region of the anatomy; to control the surgical device to provide at least one of haptic guidance and a limit on manipulation of the surgical device, based on a relationship between the representation of the anatomy and at least one of a position, an orientation, a velocity, and an acceleration of a portion of the surgical device; and to adjust the representation of the anatomy in response to movement of the anatomy during the procedure.

A surgical planning method is provided. A representation of a bone of a joint is created. The joint is moved to a first position. A first point corresponding to a first location in the joint is identified when the joint is in the first position. The joint is moved to a second position. A second point corresponding to a second location in the joint is identified, when the joint is in the second position. Bone preparation for implanting an implant on the bone is planned based at least in part on the first and second points.

Haptic guidance method

A method and apparatus for performing a minimally invasive total hip arthroplasty. An approximately 3.75-5 centimeter (1.5-2 inch) anterior incision is made in line with the femoral neck. The femoral neck is severed from the femoral shaft and removed through the anterior incision. The acetabulum is prepared for receiving an acetabular cup through the anterior incision, and the acetabular cup is placed into the acetabulum through the anterior incision. A posterior incision of approximately 2-3 centimeters (0.8-1.2 inches) is generally aligned with the axis of the femoral shaft and provides access to the femoral shaft. Preparation of the femoral shaft including the reaming and rasping thereof is performed through the posterior incision, and the femoral stem is inserted through the posterior incision for implantation in the femur. A variety of novel instruments including an osteotomy guide; an awl for locating a posterior incision aligned with the axis of the femoral shaft; a tubular posterior retractor; a selectively lockable rasp handle with an engagement guide; and a selectively lockable provisional neck are utilized to perform the total hip arthroplasty of the current invention.

Method and apparatus for performing a minimally invasive total hip arthroplasty

Femoral implant

A femoral component () for a total knee joint replacement has a modular structure including a number of segments (), each of the segments () having a femoral fixation surface () for attachment to the distal end of a femur and at least one assembly surface () for joining with an adjacent segment () of the modular femoral component (). The assembly surfaces () are generally planar and arranged to be oriented generally in a plane extending in a proximal-distal direction and in an anterior-posterior direction when the femoral fixation surface () is positioned on the distal end of the femur. Although the assembly surfaces () are generally planar, they may be shaped or provided with complementary structures () to assure self-alignment when the segments () are assembled.

Modular femoral component for a total knee joint replacement for minimally invasive implantation

Patellofemoral implant

A method and apparatus for performing a minimally invasive total hip arthroplasty. An approximately 3.75-5 centimeter (1.5-2 inch) anterior incision is made and the femoral neck is severed from the femoral shaft and removed through the anterior incision. The acetabulum is prepared for receiving an acetabular cup through the anterior incision, and the acetabular cup is placed into the acetabulum through the anterior incision. In one exemplary embodiment, a posterior incision of approximately 2-3 centimeters (0.8-1.2 inches) is generally aligned with the axis of the femoral shaft and provides access to the femoral shaft. In this embodiment, Preparation of the femoral shaft including the reaming and rasping thereof is performed through the posterior incision, and the femoral stem is inserted through the posterior incision for implantation in the femur. In an alternative embodiment, preparation of the femur is effected through the anterior incision, with the operative hip placed in hyperextension.

A method and apparatus for performing a minimally invasive total hip arthroplasty. An approximately 3.75-5 centimeter (1.5-2 inch) anterior incision is made in line with the femoral neck. The femoral neck is severed from the femoral shaft and removed through the anterior incision. The acetabulum is prepared for receiving an acetabular cup through the antenor incision, and the acetabular cup is placed into the acetabulum through the anterior incision. A posterior incision of approximately 2-3 centimeters (0.8-1.2 inches) is generally aligned with the axis of the femoral shaft and provides access to the femoral shaft. Preparation of the femoral shaft including the reaming and rasping thereof is performed through the posterior incision, and the femoral stem is inserted through the posterior incision for implantation in the femur. A variety of novel instruments including an osteotomy guide; an awl for locating a posterior incision aligned with the axis of the femoral shaft; a tubular posterior retractor; a selectively lockable rasp handle with an engagement guide; and a selectively lockable provisional neck are utilized to perform the total hip arthroplasty of the current invention.

A method and apparatus for performing a minimally invasive (i. e., with the wound developed under an incision being substantially the same size as the incision throughout the depth of the wound) total hip arthroplasty. The apparatus includes a provisional femoral head allowing for radial placement thereof on a provisional femoral neck as well as a posterior retractor sleeve for allowing access to a femur through a posterior incision.

A method and apparatus for performing a minimally invasive total hip arthroplasty. An approximately 3.75-5 centimeter (1.5-2 inch) anterior incision is made in line with the femoral neck. The femoral neck is severed from the femoral shaft and removed through the anterior incision. The acetabulum is prepared for receiving an acetabular cup through the anterior incision, and the acetabular cup is placed into the acetabulum through the anterior incision. A posterior incision of approximately 2.5-3.75 centimeters (1-1.5 inches) is generally aligned with the axis of the femoral shaft and provides access to the femoral shaft. Preparation of the femoral shaft including the reaming and rasping thereof is performed through the posterior incision, and the femoral stem is inserted through the posterior incision for implantation in the femur. A variety of novel instruments including an osteotomy guide; an awl for locating a posterior incision aligned with the axis of the femoral shaft; a tubular posterior retractor; a selectively lockable rasp handle with an engagement guide; and a selectively lockable provisional neck are utilized to perform the total hip arthroplasty of the current invention.

A modular femoral internal implant system for use in the treatment of femoral disorders resulting from injury, disease or congenital defect includes at least three interconnectable components: 1) an elongated epiphyseal/metaphyseal implant, 2) an intramedullary rod and 3) an angled side plate having an elongated plate portion adapted to be secured to the outer cortical wall and a hollow sleeve adapted to extend into the femur. The epiphyseal/metaphyseal implant can be connected to either the angled side plate or the intramedullary rod. The system may also include an elongated bone plate connectable to the angled side plate, one or more additional epiphyseal/metaphyseal implants of variable length, an additional angled side plate, a distal buttress plate connectable to the elongated bone plate, and a plurality of bone screws of a universal design. Preferably, many or all of the components of the system are made of an inert, resilient titanium-base alloy.

Femoral fixation system

Apparatus and method is provided for shaping bone, in which, individually or together, a gaseous fluid such as air is delivered along the shaping member to impinge upon aerosols created by the shaping of the bone and to deliver the aerosols back toward the bone away from an operator, and a cooling liquid is delivered along the shaping member, in order to cool the shaping member where it contacts the bone. Preferably, the gaseous fluid is air and it is delivered through a manifold carried by the shaping member, forming an air curtain. Preferably, the cooling liquid is at least partially water, with or without a curative substance carried therein, with the liquid preferably being delivered through the shaping member and opening in a direction toward the shaped bone. Where the shaping member is a saw, the liquid may be delivered through the interior of the saw, for discharge through at least one narrow side thereof. Alternatively, the cooling liquid may be delivered externally of the saw. Various refinements are also provided in the form of valves, deflectors and means for exhausting heat and/or cut-away material from the site of operation.

Apparatus and method for shaping bone

Modular femoral fixation system

Apparatus for fixing a fracture of a bone including an elongated body member having a proximal end and a distal end for insertion into the intramedullary canal of the bone; a tab member having at least one aperture to allow for passage of a screw for fastening of the tab member to the bone; and a bolt for selectively removably coupling the tab member to the proximal end of the body member. Preferably, the tab member is of a hollow cylindrical configuration and removably interlocking the first plate member to a second plate member. In another embodiment, the apparatus include a body member for insertion into a bone cavity, the body member having at least one aperture disposed in close proximity to its first end to allow for passage of a screw for fastening the body member to the bone. The present invention is also directed to apparatus for fixing a bone fracture including a first elongated plate member having at least one aperture so as to permit passage of a screw for attachment to the outer surface of a first portion of the bone. The first plate member has a first end and a second end and has a predetermined curvature so as to conform generally to the curvature of the first portion of the bone. The apparatus includes a second elongated plate member having a predetermined curvature so as to conform generally to the curvature of the second portion of the bone. A C-shaped channel is disposed on the first end of the first plate member for selectively removably interlocking the first plate member to the second plate member.

Apparatus and method for treating a fracture

Growing community of inventors

Pittsburgh, PA, United States of America

Dana C Mears