L.R.S. ORTHO LTD. Patent applications |
Patent application number | Title | Published |
20100030219 | ORTHOPEDIC NAVIGATION SYSTEM AND METHOD - System and methods for establishing, in combination with an imaging device, a desired orientation of a navigated element having a longitudinal axis, with respect to a bone, the system comprising a jig configured for being directly or indirectly fixed relative to the bone; a positioning head supported by the jig and movable with respect thereto; an angle adjustment member mounted within the positioning head, comprising a passage having a guiding axis, the angle adjustment member being configured for receiving in the passage the navigated element so that the longitudinal axis of the navigated element is aligned with the guiding axis, the angle adjustment member being movable with respect to the positioning head; and an alignment pin having a pin proximal end, a pin distal end and a pin axis, and configured for being received in the passage so that the pin axis is aligned with the guiding axis and so that the pin distal end faces towards the bone, the pin further comprising a light source disposed at its proximal end for projecting an alignment beam along the pin axis in the direction away from the bone for the alignment of the imaging device relative to the guiding axis of the passage for use of the imaging device in establishing the orientation of the guiding axis corresponding to the desired orientation of navigated element. | 02-04-2010 |
20090306665 | System and Method for Locating of Distal Holes of an Intramedullary Nail - Systems and methods for use with a hollow intramedullary nail having a proximal end, a distal end and at least one distal hole formed in the nail's wall adjacent said distal end and having a hole axis, for detecting a location of said distal hole when the nail is implanted into a intramedullary canal of a bone. The system includes a jig adapted for being mounted on said bone so as to constitute a bridge between the proximal end of said nail and a distal end of said bone, and having a positioning head with a guiding axis oriented generally perpendicular to the nail longitudinal axis, adapted for receiving therein at least a drill bit so that the drill bit's axis is aligned with said guiding axis, the positioning head being movable to bring said guiding axis into different spatial positions with respect to said hole axis. The system may further include at least one of the following: a disposable member insertable into said nail and having a nail light source for emitting light along said distal hole axis so as to create an illuminated spot on an outer surface of said bone, said nail light source is of a kind providing collimated light and, said member further includes means for positioning an axis of a collimated beam created by said light along said hole axis; viewing optics mountable in said positioning head along said guiding axis for viewing said illuminated spot; an alignment pin having a pin proximal end, a pin distal end, and a pin axis, and being adapted for mounting in said positioning head so that said pin axis is aligned with said guiding axis and so that the pin distal end faces towards the bone, where the pin further includes reference marks on its outer surface, visible in X-ray images. | 12-10-2009 |