Patents by Inventor Ralph Pratt
Ralph Pratt 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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Publication number: 20230372077Abstract: A medical implant or a method of packaging a medical implant is provided. In one embodiment, the medical implant may be packaged to facilitate remaining hydrophilic for an extended duration of time after packaging.Type: ApplicationFiled: May 23, 2023Publication date: November 23, 2023Inventors: William Ralph Pratt, Clyde Ronald Pratt, Vineet Kumar Sarin
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Publication number: 20210402107Abstract: A bone preparation system kit includes a hand piece, tubing coupled to an input of the hand piece, and a nozzle with a nozzle tip coupled to an output port of the hand piece. The hand piece includes an internal passageway extending there through from the inlet port to the outlet port for forming a flow path and further includes a valve stem supported therein for movement across the internal passageway for opening and closing the internal passageway wherein flow along the flow path is blocked by the valve stem. The hand piece also includes a trigger configured to move the valve stem to thereby control the flow of fluid through the hand piece. The hand piece, nozzle, and tubing are sterilized and enclosed in a package, such as plastic or metal foil package, including a plastic or metal foil pouch, which is configured to maintain the sterilization of said bone preparation system.Type: ApplicationFiled: June 10, 2021Publication date: December 30, 2021Inventors: Adam Lee Nelson, Vineet Kumar Sarin, Robert Arthur Bruce, Robert Michael Meneghini, William Ralph Pratt
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Patent number: 9107720Abstract: A cable tensioning system includes a reaction frame which contains a sliding platform arranged to move linearly within the frame, and a clam-type cleat attached to the sliding platform. The cleat features one or more grooves, each of which comprises two arrays of opposing ridges that converge to form a V-shape groove adapted to receive a length of cable. The ridges of each groove are tilted relative to an axis perpendicular to the groove's longitudinal axis, such that the cable is progressively captured between the ridges of the opposing arrays as it settles into the crotch of the groove when moved in a first direction, and can be disengaged from the cleat by relaxing the axial force on the cable and moving it in the opposite direction. A linear actuator mechanism may be coupled to the sliding platform to move the platform with respect to the reaction frame.Type: GrantFiled: June 24, 2013Date of Patent: August 18, 2015Assignee: Kinamed, Inc.Inventors: William Ralph Pratt, Robert Bruce, Stephen F Howard, Vineet Kumar Sarin, Clyde Ronald Pratt, Richard L Kendall
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Publication number: 20140155906Abstract: A cable tensioning system includes a reaction frame which contains a sliding platform arranged to move linearly within the frame, and a clam-type cleat attached to the sliding platform. The cleat features one or more grooves, each of which comprises two arrays of opposing ridges that converge to form a V-shape groove adapted to receive a length of cable. The ridges of each groove are tilted relative to an axis perpendicular to the groove's longitudinal axis, such that the cable is progressively captured between the ridges of the opposing arrays as it settles into the crotch of the groove when moved in a first direction, and can be disengaged from the cleat by relaxing the axial force on the cable and moving it in the opposite direction. A linear actuator mechanism may be coupled to the sliding platform to move the platform with respect to the reaction frame.Type: ApplicationFiled: June 24, 2013Publication date: June 5, 2014Applicant: Kinamed. Inc.Inventors: William Ralph Pratt, Robert Bruce, Stephen F. Howard, Vineet Kumar Sarin, Clyde Ronald Pratt, Richard L. Kendall
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Patent number: 8662299Abstract: A modular system facilitates packaging, marking, handling, sterilizing, tracking, tagging and storing small components such as surgical screws. A small, suitably cylindrical or similar cell receives a screw or other component and seats the component in a predetermined orientation. A complementary cap is adapted to engage the cell from above, closing the top and retaining the component in the cell. The cap is also adapted for use as a tool for handling the cell and the component contained therein. A coupling between the cell and the cap allows the cap to be snapped securely on the cell under manual pressure; the coupling is further adapted to release on application of sufficient bending moment across the co-axis of the cell and cap.Type: GrantFiled: April 20, 2006Date of Patent: March 4, 2014Assignee: Kinamed, Inc.Inventors: William Ralph Pratt, Clyde Ronald Pratt, Robert A. Bruce, Richard L. Kendall
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Patent number: 8657830Abstract: The invention includes both a method for acquiring the position of a patient's anterior pelvic plane, and a patient positioner or holder (apparatus) for securing a patient and acquiring the position of the patient's anterior pelvic plane. The method and apparatus facilitate definition of the anterior pelvic plane (APP) in the context of computer assisted hip surgery.Type: GrantFiled: September 9, 2010Date of Patent: February 25, 2014Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt
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Patent number: 8535329Abstract: The invention includes a method for tracking the human scapula during shoulder surgery, by a trackable device fixed to the coracoid process of the scapula. A device of the invention allows a trackable target to be fixed to the coracoid process by bone screws and an anchor. In one embodiment, a releasable coupling is provided between the anchor and the trackable target.Type: GrantFiled: October 29, 2004Date of Patent: September 17, 2013Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, William Ralph Pratt, Kyle Craig Pilgeram, Richard Lee Kendall
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Patent number: 8469967Abstract: A cable tensioning system includes a reaction frame which contains a sliding platform arranged to move linearly within the frame, and a clam-type cleat attached to the sliding platform. The cleat features one or more grooves, each of which comprises two arrays of opposing ridges that converge to form a V-shape groove adapted to receive a length of cable. The ridges of each groove are tilted relative to an axis perpendicular to the groove's longitudinal axis, such that the cable is progressively captured between the ridges of the opposing arrays as it settles into the crotch of the groove when moved in a first direction, and can be disengaged from the cleat by relaxing the axial force on the cable and moving it in the opposite direction. A linear actuator mechanism may be coupled to the sliding platform to move the platform with respect to the reaction frame.Type: GrantFiled: June 2, 2010Date of Patent: June 25, 2013Assignee: Kinamed, Inc.Inventors: William Ralph Pratt, Robert Arthur Bruce
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Patent number: 8271066Abstract: The invention includes a method of determining a surgical patient's pelvic position and inputting that position into a computer via a tracking system, suitable for use in navigating partial or total hip replacement surgery. The patient is first aligned with anatomical reference points in relation to corresponding locating features on a patient positioner. The positions of index features on the patient positioner are then acquired via a tracking system. Based on the positions of the index features and their known relationship to the locating features, the locations of the anatomical reference features are calculated and a pelvic plane is defined therefrom. The invention also includes a surgical tool for mounting a trackable target to a human bone, suitable for fixation to a human femur. This tool includes a removable bone clamp and a releasable coupling member, integrated with said removable bone clamp.Type: GrantFiled: May 15, 2008Date of Patent: September 18, 2012Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt, Roger C. Carignan
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Patent number: 8100851Abstract: An apparatus suitable for cleaning a surgically prepared working surface comprises a body portion adapted to supply pressurized fluid (preferably carbon dioxide gas) to the surgically prepared working surface and aspirate surface debris dislodged from the surgically prepared working surface. The apparatus further comprises a head portion adapted to constrain the supplied pressurized fluid to flow substantially along the surgically prepared working surface to dislodge debris there from when the head portion is in contact with the surgically prepared working surface. The dislodged surface debris are aspirated by the body portion. A second embodiment includes a Venturi-assisted cleaning head and is operable with or without an external source of vacuum.Type: GrantFiled: February 27, 2006Date of Patent: January 24, 2012Assignee: Kinamed, Inc.Inventor: William Ralph Pratt
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Patent number: 8002772Abstract: A surgical tool for mounting a trackable target to a human bone, suitable for fixation to a human femur. The tool includes a removable bone clamp and a releasable coupling member which is integrated with the removable bone clamp. The releasable coupling member is arranged to mate with a compatible coupling member mounted on the trackable target to establish a predetermined spatial relationship between the bone clamp and trackable target. The releasable and compatible coupling members form a releasable connection which is mechanically constrained to re-engage only in a re-engaged position that accurately recaptures the predetermined spatial relationship.Type: GrantFiled: August 8, 2003Date of Patent: August 23, 2011Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt, Roger C. Carignan
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Publication number: 20110009778Abstract: The invention includes both a method for acquiring the position of a patient's anterior pelvic plane, and a patient positioner or holder (apparatus) for securing a patient and acquiring the position of the patient's anterior pelvic plane. The method and apparatus facilitate definition of the anterior pelvic plane (APP) in the context of computer assisted hip surgery.Type: ApplicationFiled: September 9, 2010Publication date: January 13, 2011Inventors: VINEET KUMAR SARIN, ROBERT A. BRUCE, WILLIAM RALPH PRATT, CLYDE RONALD PRATT
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Publication number: 20100305571Abstract: A cable tensioning system includes a reaction frame which contains a sliding platform arranged to move linearly within the frame, and a clam-type cleat attached to the sliding platform. The cleat features one or more grooves, each of which comprises two arrays of opposing ridges that converge to form a V-shape groove adapted to receive a length of cable. The ridges of each groove are tilted relative to an axis perpendicular to the groove's longitudinal axis, such that the cable is progressively captured between the ridges of the opposing arrays as it settles into the crotch of the groove when moved in a first direction, and can be disengaged from the cleat by relaxing the axial force on the cable and moving it in the opposite direction. A linear actuator mechanism may be coupled to the sliding platform to move the platform with respect to the reaction frame.Type: ApplicationFiled: June 2, 2010Publication date: December 2, 2010Inventors: William Ralph Pratt, Robert Arthur Bruce
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Patent number: 7780681Abstract: The invention includes: a locating system; a computer, interfaced to the locating system and interpreting the positions of tracked objects in a generic computer model of a patient's hip geometry; a software module, executable on the computer, which defines the patient's pelvic plane without reference to previously obtained radiological data, by locating at least three pelvic landmarks; and a pelvic tracking marker, fixable to the pelvic bone and trackable by the locating system, to track in real time the orientation of the defined pelvic plane. Preferably, the system also includes a femoral tracking marker, securely attachable to a femur of the patient by a non-penetrating ligature and trackable by the locating system to detect changes in leg length and femoral offset.Type: GrantFiled: January 27, 2004Date of Patent: August 24, 2010Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, Mark Edward Apgar, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt
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Patent number: 7634306Abstract: The invention includes a method and system for intra-operative navigation of a joint replacement operation, without recourse to pre-operative imagery of pre-operative computerized simulations. Trackable markers and a locating system are employed to track first and second bones. A computer receives positional information regarding the trackable markers and calculates (predicts) at least one suggested combination of components of a modular implant system to produce a desired post-operative skeletal relationship.Type: GrantFiled: November 6, 2003Date of Patent: December 15, 2009Assignee: Kinamed, Inc.Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt
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Publication number: 20090204118Abstract: A surgical cable comprises a core segment, at least one leader segment, and an outer jacket. The core segment is made from a material having a high tensile strength and which is capable of elongation. Each leader segment is arranged axially in tandem with the core segment and comprises a semi-rigid ductile material capable of being manipulated into a desired shape. A plurality of braided fibers form the outer jacket, which surrounds the core segment and at least a portion of the leader segment. The cable is manipulated by means of the leader segments, which are preferably capable of resisting bending in response to head-on compression, thereby enabling the cable to be more easily manipulated around and through anatomical structures.Type: ApplicationFiled: February 11, 2009Publication date: August 13, 2009Inventor: WILLIAM RALPH PRATT
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Publication number: 20080221570Abstract: The invention includes a method of determining a surgical patient's pelvic position and inputting that position into a computer via a tracking system, suitable for use in navigating partial or total hip replacement surgery. The patient is first aligned with anatomical reference points in relation to corresponding locating features on a patient positioner. The positions of index features on the patient positioner are then acquired via a tracking system. Based on the positions of the index features and their known relationship to the locating features, the locations of the anatomical reference features are calculated and a pelvic plane is defined therefrom. The invention also includes a surgical tool for mounting a trackable target to a human bone, suitable for fixation to a human femur. This tool includes a removable bone clamp and a releasable coupling member, integrated with said removable bone clamp.Type: ApplicationFiled: May 15, 2008Publication date: September 11, 2008Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt, Roger C. Carignan
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Publication number: 20040254584Abstract: The invention includes: a locating system; a computer, interfaced to the locating system and interpreting the positions of tracked objects in a generic computer model of a patient's hip geometry; a software module, executable on the computer, which defines the patient's pelvic plane without reference to previously obtained radiological data, by locating at least three pelvic landmarks; and a pelvic tracking marker, fixable to the pelvic bone and trackable by the locating system, to track in real time the orientation of the defined pelvic plane. Preferably, the system also includes a femoral tracking marker, securely attachable to a femur of the patient by a non-penetrating ligature and trackable by the locating system to detect changes in leg length and femoral offset.Type: ApplicationFiled: January 27, 2004Publication date: December 16, 2004Inventors: Vineet Kumar Sarin, Mark Edward Apgar, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt
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Publication number: 20040254586Abstract: The invention includes both a method for acquiring the position of a patient's anterior pelvic plane, and a patient positioner or holder (apparatus) for securing a patient and acquiring the position of the patient's anterior pelvic plane. The method and apparatus facilitate definition of the anterior pelvic plane (APP) in the context of computer assisted hip surgery.Type: ApplicationFiled: April 1, 2004Publication date: December 16, 2004Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt
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Publication number: 20040102792Abstract: The invention includes a method of determining a surgical patient's pelvic position and inputting that position into a computer via a tracking system, suitable for use in navigating partial or total hip replacement surgery. The patient is first aligned with anatomical reference points in relation to corresponding locating features on a patient positioner. The positions of index features on the patient positioner are then acquired via a tracking system. Based on the positions of the index features and their known relationship to the locating features, the locations of the anatomical reference features are calculated and a pelvic plane is defined therefrom. The invention also includes a surgical tool for mounting a trackable target to a human bone, suitable for fixation to a human femur. This tool includes a removable bone clamp and a releasable coupling member, integrated with said removable bone clamp.Type: ApplicationFiled: August 8, 2003Publication date: May 27, 2004Inventors: Vineet Kumar Sarin, Robert A. Bruce, William Ralph Pratt, Clyde Ronald Pratt, Roger C. Carignan