Assignee: Orthosoft Inc.

Location: Montreal, CA
No. of patents: 19

Number	Title	Issue Date
8152726	Non-invasive tracking of bones for surgery There is described a device for use with a position sensing system to register position and orientation in a reference-coordinate system, the device comprising a set of at least three base units removably and non-invasively attachable to a skin surface covering a bo...	04/10/2012
8147496	Surgical universal positioning block and tool guide A positioning block for use in knee surgery includes a rotational mounting removably engageable to the bone element by a multi-axial fastener such that the mounting element is selectively rotatable relative to the bone element about at least two substantially perpen...	04/03/2012
8038683	CAS system for condyle measurement A method of determining a reference point on condyles of a femur uses a computer assisted surgery system having a digitizer with perpendicular first and second planar surfaces, the digitizer being locatable and trackable in three dimensional space by the computer as...	10/18/2011
7938777	Non-invasive tracking of bones for surgery There is described a device for use with a position sensing system for tracking a bone in a reference coordinate system, the device comprising a fabric removably and non-invasively attachable to a bone and having a plurality of reference markers distributed thereon,...	05/10/2011
7877131	Method for providing pelvic orientation information in computer-assisted surgery A computer-assisted surgery system for guiding an operator in altering a pelvis. A sensing apparatus is provided for tracking a reference tool and a bone altering tool. A position calculator calculates a position and orientation of a pelvic frame of reference as a f...	01/25/2011
7826813	Method and system for determining a time delay between transmission and reception of an RF signal in a noisy RF environment using frequency detection There present description is directed to a method and a system for determining a time delay between a transmission and a reception of an RF signal in a noisy environment. The method comprises: transmitting the RF signal according to a transmit frequency pattern, the...	11/02/2010
7826800	Method and system for determining a time delay between transmission and reception of an RF signal in a noisy RF environment using phase detection The present application describes a method and system for determining a time delay between a transmission and a reception of an RF signal in a noisy environment. The method comprises: transmitting the RF signal; shifting a phase of the RF signal after a first time p...	11/02/2010
7736368	Surgical universal positioning block and tool guide A positioning block (10) for use in total knee replacement surgery, permitting five degrees-of-freedom movement relative to a bone element (39) to which it is fixed. The positioning block (10) comprises a rotational mounting element (14) ...	06/15/2010
7427272	Method for locating the mechanical axis of a femur There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of...	09/23/2008
7327306	RF system for tracking objects A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder circuit connected to the transponder aerial for receiving an RF signal ...	02/05/2008
7314048	CAS drill guide and drill tracking system A drill guide assembly (10) for a drilling tool (50) having a chuck engaging a bit portion (54) comprising a tip (62) and a length extending from the chuck, the drill guide assembly comprising a first member (14), a second member (...	01/01/2008
7274958	Registration pointer with interchangeable tip and method A registration pointer for registering points of surfaces of bodily elements in computer-assisted surgery, comprising a handle for being manipulated by a pointer operator. A stem is connected to the handle and has a first and a second tip configurations each having ...	09/25/2007
7107091	Multiple bone tracking A surgical device adapted for use with an image guided surgical system to facilitate monitoring inter-dependently mobile bone elements. A rigidly connected multiple-point anchor assembly is releasably engageable to at least two inter-dependently mobile bone elements...	09/12/2006
6996487	Automatic calibration system for computer-aided surgical instruments A system for automatic calibration of instruments (S) having varying cross-sectional dimensions within a predetermined range and having detectable elements (110, 112, 113, 114) thereon for computer-aided surgery, comprising a calibration base (C) having detec...	02/07/2006
6887247	CAS drill guide and drill tracking system A drill guide assembly for a drilling tool having a chuck engaging a bit portion comprising a tip and a length extending from the chuck, the drill guide assembly comprising a first member, a second member and a trackable member. The first member is adapted to abut a...	05/03/2005
6856828	CAS bone reference and less invasive installation method thereof A surgical bone reference assembly is communicable with an image guided surgical system such that position and movement of a bone element are monitorable. A bone anchor member comprises a trackable member and teeth engageable with the bone element. The trackable mem...	02/15/2005
6533737	Interactive computer-assisted surgical system and method thereof A computer-assisted surgical system and method are described herein. The computer-assisted surgical system comprises a computer including three-dimensional models of anatomical structures and a user interface including a position sensing system to registe...	03/18/2003
6450978	Interactive computer-assisted surgical system and method thereof A computer-assisted surgical system and method are described herein. The computer-assisted surgical system comprises a computer including three-dimensional models of anatomical structures and a user interface including a position sensing system to registe...	09/17/2002
6396939	Method and system for segmentation of medical images A segmentation method and system for medical images of a structure, including at least one substructure are described herein. Examples of such structure and substructures are a vertebra and its spinal canal or a sacrum with its two foramens. The method co...	05/28/2002

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Assignee: Orthosoft Inc.