Ultrasound CT registration for positioning
View Patent ↗An assembly for manipulating a bone includes a first manipulating element configured to be attached to a first portion of bone and including a location emitting signal and a second manipulating element configured to be attached to a second portion of bone and including a sensor detecting the location emitting signal to provide a position and orientation signal of the first and second manipulating elements relative to one another. The assembly also includes a tracking unit including a processor tracking movement of the first and second manipulating elements relative to one another in a plurality of dimensions using the position and orientation signals.
1. An assembly for manipulating a bone, comprising:
a first manipulating element configured to be attached to a first portion of bone and including a location emitting signal;
a second manipulating element configured to be attached to a second portion of bone and including a sensor detecting the location emitting signal to provide a position and orientation signal of the first and second manipulating elements relative to one another; and
a tracking unit including a processor tracking movement of the first and second manipulating elements relative to one another in a plurality of dimensions using the position and orientation signal.
2. The assembly of claim 1 , wherein the first and second manipulating elements include a handle sized and shaped to be gripped by a user to move the first and second portions of bone, respectively.
3. The assembly of claim 1 , wherein the location emitting signal is a light emitting array.
4. The assembly of claim 1 , wherein the location emitting signal is a field generator.
5. The assembly of claim 1 , further comprising a scanning unit connected to the second manipulating element to determine a location of one of the first and second manipulating elements relative.
6. The assembly of claim 5 , wherein the scanning unit includes a light source which casts a shadow of a fixed pattern thereof to be detected by the sensor of the first manipulating element such that a position and orientation of the first manipulating element relative to the scanning unit is determined.
7. The assembly of claim 3 , further comprising a display showing a location of one of the first and second manipulating elements relative to the surface data of the bone.
8. The assembly of claim 1 , wherein the first and second manipulating elements are markers.
9. A method for tracking a manipulation of a bone, comprising:
attaching a first manipulating element to a first portion of bone, the first manipulating element emitting a location signal;
attaching a second manipulating element to a second portion of bone, the second manipulating element sensing the location signal to provide a sensed location;
determining a position and orientation of a first manipulating element relative to a second manipulating element in a plurality of dimensions; and
tracking relative movement between the first and second manipulating elements by detecting changes in the emitted location signal and the sensed location.
10. The method of claim 9 , further comprising displaying a location of the first and second manipulating elements relative to the surface data.
11. The method of claim 10 , further comprising generating a manipulated surface image showing a movement of the first and second portions of bone via manipulation of the first and second manipulating elements relative to one another.
12. The method of claim 9 , wherein the relative tracking between the first and second manipulating elements is performed via one of a light emitting apparatus and a field generator.