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).
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Patent number: 7909831Abstract: 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: GrantFiled: March 17, 2001Date of Patent: March 22, 2011Assignee: Howmedica Osteonics Corp.Inventors: Stuart L. Axelson, Jr., Jose Luis Moctezuma, Kenneth A. Krackow, Mattthew P. Poggie, Gearoid Walsh
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Publication number: 20060124493Abstract: 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: ApplicationFiled: February 13, 2006Publication date: June 15, 2006Inventor: Kenneth Krackow
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Patent number: 7032752Abstract: 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: GrantFiled: August 8, 2003Date of Patent: April 25, 2006Inventor: Kenneth A. Krackow
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Publication number: 20050029145Abstract: 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: ApplicationFiled: August 8, 2003Publication date: February 10, 2005Inventor: Kenneth Krackow
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Patent number: 6740092Abstract: 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: GrantFiled: January 11, 2001Date of Patent: May 25, 2004Assignee: Howmedica Osteonics Corp.Inventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth Krackow
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Patent number: 6620168Abstract: 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: GrantFiled: May 12, 2000Date of Patent: September 16, 2003Assignee: Stryker Technologies CorporationInventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
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Patent number: 6595997Abstract: 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: GrantFiled: March 17, 2001Date of Patent: July 22, 2003Assignee: Howmedica Osteonics Corp.Inventors: Stuart L. Axelson, Jr., Jose Luis Moctezuma, Kenneth A. Krackow, Matthew P. Poggie
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Publication number: 20020133161Abstract: 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: ApplicationFiled: March 17, 2001Publication date: September 19, 2002Inventors: Stuart L. Axelson, Jose Luis Moctezuma, Kenneth A. Krackow, Matthew P. Poggie
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Publication number: 20020133160Abstract: 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: ApplicationFiled: March 17, 2001Publication date: September 19, 2002Inventors: Stuart L. Axelson, Jose Luis Moctezuma, Kenneth A. Krackow, Mattthew P. Poggie, Gearoid Walsh
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Patent number: 6258095Abstract: 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 adaptersType: GrantFiled: March 28, 1998Date of Patent: July 10, 2001Assignee: Stryker Technologies CorporationInventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth Krackow
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Publication number: 20010001121Abstract: 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 adaptersType: ApplicationFiled: January 11, 2001Publication date: May 10, 2001Inventors: Alan Lombardo, Stuart L. Axelson, James V. Bono, Kenneth Krackow
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Patent number: 6228091Abstract: 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: GrantFiled: December 7, 1999Date of Patent: May 8, 2001Assignee: Stryker Technologies CorporationInventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
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Patent number: 6063091Abstract: 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: GrantFiled: October 13, 1998Date of Patent: May 16, 2000Assignee: Stryker Technologies CorporationInventors: Alan Lombardo, Stuart L. Axelson, Jr., James V. Bono, Kenneth A. Krackow
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Patent number: 5658351Abstract: 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: GrantFiled: July 31, 1995Date of Patent: August 19, 1997Assignee: Howmedica Inc.Inventors: Michael W. Dudasik, Kenneth Krackow, Philip C. Noble
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Patent number: 4653488Abstract: 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: GrantFiled: November 19, 1985Date of Patent: March 31, 1987Assignee: Howmedica, Inc.Inventors: Robert V. Kenna, David S. Hungerford, Kenneth A. Krackow
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Patent number: 4646729Abstract: 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: GrantFiled: December 19, 1985Date of Patent: March 3, 1987Assignee: Howmedica, Inc.Inventors: Robert V. Kenna, David S. Hungerford, Kenneth A. Krackow