Patents by Inventor Kenneth A. Krackow

Kenneth A. Krackow 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: 7909831
    Abstract: A system for resecting a tibia and femur during arthroplasty includes anchoring devices, a three-way alignnment guide attachable to an anchoring device. The alignment guide provides for locating a resection guide in three degrees of freedom, including one translation and two rotations. The resection guide is coupled to a computer navigation system.
    Type: Grant
    Filed: March 17, 2001
    Date of Patent: March 22, 2011
    Assignee: Howmedica Osteonics Corp.
    Inventors: Stuart L. Axelson, Jr., Jose Luis Moctezuma, Kenneth A. Krackow, Mattthew P. Poggie, Gearoid Walsh
  • Publication number: 20060124493
    Abstract: The present invention provides a container (10) for medical instruments, packaging system and method for use by a medical provider in connection with a medical procedure such as surgery. The container includes a first container portion (12) adapted to contain medical instruments and a second container portion (14) configured to attach to the first container portion, with fasteners (16, 18, 20, 22) attached between the first and second container portions which are associated with reminder indicia (e.g., 17A, 19B, 21A, 23B). Among other things, the container is designed to ensure the provision of an appropriate medical procedure on the proper patient at the proper site.
    Type: Application
    Filed: February 13, 2006
    Publication date: June 15, 2006
    Inventor: Kenneth Krackow
  • Patent number: 7032752
    Abstract: The present invention provides a container (10) for medical instruments, packaging system and method for use by a medical provider in connection with a medical procedure such as surgery. The container includes a first container portion (12) adapted to contain medical instruments and a second container portion (14) configured to attach to the first container portion, with fasteners (16, 18, 20, 22) attached between the first and second container portions which are associated with reminder indicia (e.g., 17A, 19B, 21A, 23B). Among other things, the container is designed to ensure the provision of an appropriate medical procedure on the proper patient at the proper site.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: April 25, 2006
    Inventor: Kenneth A. Krackow
  • Publication number: 20050029145
    Abstract: The present invention provides a container (10) for medical instruments, packaging system and method for use by a medical provider in connection with a medical procedure such as surgery. The container includes a first container portion (12) adapted to contain medical instruments and a second container portion (14) configured to attach to the first container portion, with fasteners (16, 18, 20, 22) attached between the first and second container portions which are associated with reminder indicia (e.g., 17A, 19B, 21A, 23B). Among other things, the container is designed to ensure the provision of an appropriate medical procedure on the proper patient at the proper site.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 10, 2005
    Inventor: Kenneth Krackow
  • Patent number: 6740092
    Abstract: IM revision tools include reamers with depth markings or stops, an impactor-extractor with a coupling for attaching to tools which are inserted into and removed from the IM canal, a resection guide tower to which a cutting block is attached and which includes a notch which serves as both a witness mark and a holder for a femoral collar, a reversible clean-up cutting block with a quick-connect clamp attachable to the guide tower for resecting the distal femur, a selection of spacer blocks for measuring the space between the femur to determine the size of the components to be installed, a multiple cut cutting guide for preparing the femur, a set of 5 and 10 mm trial wedges, a trial stem valgus adapter, femoral sizing indicators which include indications of anterior/posterior offset, a stabilizer box cutting template which is attachable to the multiple cut cutting guide, and anterior/posterior offset adapters for attaching the femoral component to the IM stem.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: May 25, 2004
    Assignee: Howmedica Osteonics Corp.
    Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth Krackow
  • Patent number: 6620168
    Abstract: IM tibia revision tools include a trial stem extender having multiple notches which serve both as depth witness marks and holders for a stop clip, a collection of different sized tibial templates, each template adapted to receive an angular offset positioning guide, a collection of offset bushings, each bushing each bushing having a different offset distance and each being adapted to cooperate with the trial stem extender and the angular offset positioning guide, a neutral bushing for locating the position of the implant boss relative to the tibia and for reaming the tibia to accept the boss of the implant, a fin punch guide and fin punch for preparing the tibia to receive the keel of the tibial component, and a tool for translating the angular offset measurement to the tibial component. Tibial components according to the invention have three parts: the baseplate portion, the offset portion, and the stem portion.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 16, 2003
    Assignee: Stryker Technologies Corporation
    Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
  • Patent number: 6595997
    Abstract: A method for aligning a resection guide relative to a patient's bone has applications during arthroplasty. An alignment guide is coupled to a patient's bone, to which there is coupled a resection guide. The resection guide is positioned along a transactional path and a plurality of rotational paths by manipulation of the alignment guide, thereby providing three degrees of freedom of manipulation over infinitely adjustable ranges.
    Type: Grant
    Filed: March 17, 2001
    Date of Patent: July 22, 2003
    Assignee: Howmedica Osteonics Corp.
    Inventors: Stuart L. Axelson, Jr., Jose Luis Moctezuma, Kenneth A. Krackow, Matthew P. Poggie
  • Publication number: 20020133161
    Abstract: Tools for resecting tibia and femur include anchoring devices, a three-way alignment guide attachable to the anchoring devices, two embodiments of a resection guide attachable to the alignment guide and equipped with couplings for trackers, a plane probe for examining the resected plane, and apparatus for EM alignment of the resection guide in the event of a computer failure. The methods of the invention include operating a computer aided navigation apparatus in the conventional manner including attaching one or more trackers to the bone to be resected; choosing a location for the anchoring device with or without guidance from the computer and installing the anchoring device; attaching the three-way alignment guide to the anchoring device; attaching a resection guide to the alignment guide; attaching one or two trackers to the resection guide; locating the resection guide with the aid of the alignment guide and the computer; fixing the resection guide to the bone with pins.
    Type: Application
    Filed: March 17, 2001
    Publication date: September 19, 2002
    Inventors: Stuart L. Axelson, Jose Luis Moctezuma, Kenneth A. Krackow, Matthew P. Poggie
  • Publication number: 20020133160
    Abstract: Tools for resecting tibia and femur include anchoring devices, a three-way alignment guide attachable to the anchoring devices, two embodiments of a resection guide attachable to the alignment guide and equipped with couplings for trackers, a plane probe for examining the resected plane, and apparatus for EM alignment of the resection guide in the event of a computer failure. The methods of the invention include operating a computer aided navigation apparatus in the conventional manner including attaching one or more trackers to the bone to be resected; choosing a location for the anchoring device with or without guidance from the computer and installing the anchoring device; attaching the three-way alignment guide to the anchoring device; attaching a resection guide to the alignment guide; attaching one or two trackers to the resection guide; locating the resection guide with the aid of the alignment guide and the computer; fixing the resection guide to the bone with pins.
    Type: Application
    Filed: March 17, 2001
    Publication date: September 19, 2002
    Inventors: Stuart L. Axelson, Jose Luis Moctezuma, Kenneth A. Krackow, Mattthew P. Poggie, Gearoid Walsh
  • Patent number: 6258095
    Abstract: IM revision tools include reamers with depth markings or stops, an impactor-extractor with a coupling for attaching to tools which are inserted into and removed from the IM canal, a resection guide tower to which a cutting block is attached and which includes a notch which serves as both a witness mark and a holder for a femoral or tibial collar, a reversible clean-up cutting block with a quick-connect clamp attachable to the guide tower for resecting the distal femur and separate left and right clean-up cutting blocks for resecting the proximal tibia, a selection of spacer blocks for measuring the space between the tibia and femur to determine the size of the components to be installed, a multiple cut cutting guide for preparing the femur, a set of 5 and 10 mm trial wedges, a trial stem valgus adapter, femoral sizing indicators which include indications of anterior/posterior offset, a stabilizer box cutting template which is attachable to the multiple cut cutting guide, and anterior/posterior offset adapters
    Type: Grant
    Filed: March 28, 1998
    Date of Patent: July 10, 2001
    Assignee: Stryker Technologies Corporation
    Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth Krackow
  • Publication number: 20010001121
    Abstract: IM revision tools include reamers with depth markings or stops, an impactor-extractor with a coupling for attaching to tools which are inserted into and removed from the IM canal, a resection guide tower to which a cutting block is attached and which includes a notch which serves as both a witness mark and a holder for a femoral or tibial collar, a reversible clean-up cutting block with a quick-connect clamp attachable to the guide tower for resecting the distal femur and separate left and right clean-up cutting blocks for resecting the proximal tibia, a selection of spacer blocks for measuring the space between the tibia and femur to determine the size of the components to be installed, a multiple cut cutting guide for preparing the femur, a set of 5 and 10 mm trial wedges, a trial stem valgus adapter, femoral sizing indicators which include indications of anterior/posterior offset, a stabilizer box cutting template which is attachable to the multiple cut cutting guide, and anterior/posterior offset adapters
    Type: Application
    Filed: January 11, 2001
    Publication date: May 10, 2001
    Inventors: Alan Lombardo, Stuart L. Axelson, James V. Bono, Kenneth Krackow
  • Patent number: 6228091
    Abstract: IM tibia revision tools include a trial stem extender having multiple notches which serve both as depth witness marks and holders for a stop clip, a collection of different sized tibial templates, each template adapted to receive an angular offset positioning guide, a collection of offset bushings, each bushing each bushing having a different offset distance and each being adapted to cooperate with the trial stem extender and the angular offset positioning guide, a neutral bushing for locating the position of the implant boss relative to the tibia and for reaming the tibia to accept the boss of the implant, a fin punch guide and fin punch for preparing the tibia to receive the keel of the tibial component, and a tool for translating the angular offset measurement to the tibial component. Tibial components according to the invention have three parts: the baseplate portion, the offset portion, and the stem portion.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: May 8, 2001
    Assignee: Stryker Technologies Corporation
    Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
  • Patent number: 6063091
    Abstract: IM tibia revision tools include a trial stem extender having multiple notches which serve both as depth witness marks and holders for a stop clip, a collection of different sized tibial templates, each template adapted to receive an angular offset positioning guide, a collection of offset bushings, each bushing each bushing having a different offset distance and each being adapted to cooperate with the trial stem extender and the angular offset positioning guide, a neutral bushing for locating the position of the implant boss relative to the tibia and for reaming the tibia to accept the boss of the implant, a fin punch guide and fin punch for preparing the tibia to receive the keel of the tibial component, and a tool for translating the angular offset measurement to the tibial component. Tibial components according to the invention have three parts: the baseplate portion, the offset portion, and the stem portion.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: May 16, 2000
    Assignee: Stryker Technologies Corporation
    Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
  • Patent number: 5658351
    Abstract: A centralizer for the stem of a cementable prosthetic orthopedic implant that is implanted into the medullary canal of a bone has a hollow annular body with a tapered interior surface for receiving a tapered stem of the implant. The centralizer has four fins spaced around the exterior surface of its annular body with the fins extending radially outwardly in a direction generally perpendicular to the longitudinal axis extending along the stem in a proximal-distal direction. The annular body of the centralizer has a proximal and a distal end surface spaced a predetermined distance apart with the fins having a base adjacent the body extending over a substantial portion of the predetermined distance. Adjacent fins are offset from neighboring fins in a proximal-distal direction so that when the proximal-distal dimension of the annular body is maintained, it generates a wavelike structure for the centralizer body.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: August 19, 1997
    Assignee: Howmedica Inc.
    Inventors: Michael W. Dudasik, Kenneth Krackow, Philip C. Noble
  • Patent number: 4653488
    Abstract: A prosthetic knee is implanted after cutting the femor and tibia in the proper manner with the aid of instruments which include axial alignment guides and a series of cutting jigs.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: March 31, 1987
    Assignee: Howmedica, Inc.
    Inventors: Robert V. Kenna, David S. Hungerford, Kenneth A. Krackow
  • Patent number: 4646729
    Abstract: A prosthetic knee is implanted after cutting the femor and tibia in the proper manner with the aid of instruments which include axial alignment guides and a series of cutting jigs.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: March 3, 1987
    Assignee: Howmedica, Inc.
    Inventors: Robert V. Kenna, David S. Hungerford, Kenneth A. Krackow