Ultrasound CT registration for positioning

• US 9,833,291 B2
• Filed: 06/14/2012
• Issued: 12/05/2017
• Est. Priority Date: 06/22/2011
• Status: Active Grant

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Baumgartner, Adrian
• Primary Examiner(s): Bates, David
• Application Number:
  US13/523,155
• Publication Number:
  US 20130150863A1
• Time in Patent Office: 2,000 Days
• Field of Search: 606 87, 606102, 606130, 600407, 600414, 600417, 600426, 600429
• CPC Class Codes: A61B 17/88 Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices A61B17/7074 takes precedence
• CPC Class Codes: A61B 17/8866 for gripping or pushing bones, e.g. approximators joint distractors A61B17/025
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2063 Acoustic tracking systems, e.g. using ultrasound
• CPC Class Codes: A61B 2090/363 Use of fiducial points
• CPC Class Codes: A61B 2090/364 Correlation of different images or relation of image positions in respect to the body
• CPC Class Codes: A61B 2090/378 using ultrasound
• CPC Class Codes: A61B 2090/3916 Bone tissue
• CPC Class Codes: A61B 2090/3945 Active visible markers, e.g. light emitting diodes
• CPC Class Codes: A61B 2090/3954 magnetic, e.g. NMR or MRI
• CPC Class Codes: A61B 2090/397 electromagnetic other than visible, e.g. microwave
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: G06T 2207/10081 Computed x-ray tomography [CT]
• CPC Class Codes: G06T 2207/10132 Ultrasound image
• CPC Class Codes: G06T 2207/30008 Bone
• CPC Class Codes: G06T 2207/30204 Marker
• CPC Class Codes: G06T 7/33 using feature-based methods

Abstract

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.

Claims

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.