Vineet Kumar Sarin - Thousand Oaks CA, US Robert A. Bruce - Ventura CA, US William Ralph Pratt - Newbury Park CA, US Clyde Ronald Pratt - Somis CA, US
Assignee:
Kinamed, Inc. - Camarillo CA
International Classification:
A61B 5/05
US Classification:
600426, 600429, 606130
Abstract:
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.
Non-Imaging, Computer Assisted Navigation System For Hip Replacement Surgery
Vineet Kumar Sarin - Thousand Oaks CA, US Mark Edward Apgar - Camarillo CA, US Robert A. Bruce - Ventura CA, US William Ralph Pratt - Newbury Park CA, US Clyde Ronald Pratt - Somis CA, US
Assignee:
Kinamed, Inc. - Camarillo CA
International Classification:
A61B 19/00
US Classification:
606130, 606102
Abstract:
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.
Non-Imaging Tracking Tools And Method For Hip Replacement Surgery
Vineet Kumar Sarin - Simi Valley CA, US Robert A. Bruce - Ventura CA, US William Ralph Pratt - Newbury Park CA, US Clyde Ronald Pratt - Somis CA, US Roger C. Carignan - Williams AZ, US
Assignee:
Kinamed, Inc. - Camarillo CA
International Classification:
A61B 17/56
US Classification:
606 53, 24525, 269143, 600426
Abstract:
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.
Non-Imaging Tracking Tools And Method For Hip Replacement Surgery
Vineet Kumar Sarin - Simi Valley CA, US Robert A. Bruce - Ventura CA, US William Ralph Pratt - Newbury Park CA, US Clyde Ronald Pratt - Somis CA, US Roger C. Carignan - Williams AZ, US
Assignee:
Kinamed, Inc. - Camarillo CA
International Classification:
A61B 5/05
US Classification:
600407
Abstract:
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.
Tracking Tools And Method For Computer-Assisted Shoulder Replacement Surgery
Vineet Kumar Sarin - Thousand Oaks CA, US William Ralph Pratt - Newbury Park CA, US Kyle Craig Pilgeram - Oxnard CA, US Richard Lee Kendall - Oak View CA, US
Assignee:
Kinamed, Inc. - Camarillo CA
International Classification:
A61B 17/56
US Classification:
606102, 606130
Abstract:
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.
Non-Imaging, Computer Assisted Navigation System For Hip Replacement Surgery
Vineet Sarin - Thousand Oaks CA, US Clyde Pratt - Somis CA, US Mark Apgar - Oxnard CA, US William Pratt - Newbury Park CA, US
Assignee:
Kinamed, Inc.
International Classification:
A61F002/00
US Classification:
600/426000, 606/102000, 606/091000
Abstract:
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.
Vineet Sarin - Thousand Oaks CA, US Robert Bruce - Ventura CA, US William Pratt - Newbury Park CA, US Clyde Pratt - Somis CA, US
International Classification:
A61B017/58
US Classification:
606/130000
Abstract:
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.
Method And Apparatus For Verifying And Correcting Tracking Of An Anatomical Structure During Surgery
A method and apparatus verifies and optionally, corrects tracking during computer assisted surgery by tracking a plurality of trackable targets, at least one of which is initially capable of positioning independent of the other targets. A geometric relationship between said targets is calculated and later verified, to detect instability of the trackable targets and their mounting system.