Ultrasound CT registration for positioning

• US 9,173,715 B2
• Filed: 06/14/2012
• Issued: 11/03/2015
• Est. Priority Date: 06/22/2011
• Status: Expired due to Fees

• Current Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Synthes Products Incorporated (Johnson & Johnson)
• Inventors: Baumgartner, Adrian
• Primary Examiner(s): FERNANDEZ, KATHERINE L
• Application Number:
  US13/523,035
• Publication Number:
  US 20130150709A1
• Time in Patent Office: 1,237 Days
• Field of Search: 600/424, 600/425, 600/437, 382/128, 382/291, 606/102, 606/97
• US Class Current: 1/1
• 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

A bone registration system is disclosed. The bone registration system may have a device including a scanner arranged to scan a target surface area of bone to obtain scan data and a first communication component. The registration system may have also a first marker positionable on a first portion of bone. The first marker may include a second communication component arranged to transmit a location signal for indicating a position of the first marker in a plurality of dimensions relative to the device. The system may have also a registration unit that compares the scan data with surface data of the bone to generate position data identifying overlapping elements of the scan data relative to the surface data, determines location data from the location signal and determines a location of the first marker on a surface of the bone using the position data and the location data.

Claims

1. A bone registration system, comprising:

a device including a scanner arranged to scan a target surface area of bone to obtain scan data and a first communication component configured to transmit a first location signal for indicating a position of the device;

a first marker adapted to be positioned on a first portion of the bone, the first marker including a second communication component configured to transmit a second location signal for indicating a position of the first marker in a plurality of dimensions relative to the device;

a processor configured to compare the scan data with stored surface data of the bone to generate position data identifying overlapping elements of the scan data relative to the surface data, to determine location data from the first and second location signals and to determine a location of the first marker relative to a surface of the bone in the surface data using the position data and the location data; and

a second marker adapted to be positioned on a second portion of the bone, wherein the first and second markers are configured to communicate with one another to determine relative marker data including a position of the first marker relative to the second marker, wherein the processor is further configured to process the relative marker data to determine a location of the second marker relative to the surface of the bone in the surface data.

2. The system of claim 1, wherein the scan data is ultrasound data and the surface data is CT data.

3. The system of claim 1, further comprising a signal generator configured to generate a reference signal;

wherein the first and second communication components are a first sensor and a second sensor, each configured to sense the reference signal and transmit respective location signals to the processor indicating a position of the respective communication component in a plurality of dimensions relative to the signal generator; and

wherein the processor determines location data from the location signals to indicate the position of the first marker relative to the device in a plurality of dimensions.

4. The system of claim 3, wherein the reference signal is an electromagnetic signal.

5. The system of claim 1, wherein

the first communication component is a signal generator configured to generate a reference signal;

and

the second communication component is a sensor configured to sense the reference signal and transmit the second location signal to the processor for indicating a position of the first marker relative to the device in a plurality of dimensions.

6. The system of claim 5, wherein the signal generator and the sensor are one of electromagnetic and optical.

7. The system of claim 1, wherein the location data indicates a position of the first marker relative to the device in six dimensions.

8. The system of claim 1, wherein respective locations of the first and second markers on the surface of the bone are identifiable using the device.

9. The system of claim 1, further comprising a display showing the location of the first marker relative to the surface of the bone in the surface data.

10. The system of claim 1, wherein the second marker includes a third communication component communicating with the first communication component to determine location data indicating a position of the first communication component relative to the third communication component in a plurality of dimensions.

11. The system of claim 1, wherein the device includes one of an electromagnetic field generator and an optical field generator.

12. A method for bone registration, comprising:

scanning a target surface area of bone to obtain scan data using a device including a scanner and a first communication component configured to transmit a first location signal for indicating a position of the device;

positioning a first marker on a first portion of the bone, the first marker including a second communication component configured to transmit a second location signal indicating a position of the first communication component relative to the second communication component in a plurality of dimensions;

positioning a second marker on a second portion of the bone;

comparing, using a processor, the scan data with stored surface data of the bone to generate position data identifying overlapping elements of the scan data relative to the surface data, determining location data from the first and second location signals and determining a location of the first marker relative to a surface of the bone in the surface data using the position data and the location data;

determining relative marker data indicating a position of the first marker relative to the second marker; and

processing the relative marker data to determine a location of the second marker relative to the surface of the bone in the surface data.

13. The method of claim 12, wherein the scan data is ultrasound data and the surface data is CT data.

14. The method of claim 12, wherein the first communication component is an electromagnetic signal emitter and the second communication component is an electromagnetic sensor.

15. The method of claim 12, wherein the location data indicates a position of the device relative to the first marker in six dimensions.

16. The method of claim 12, wherein the second portion of the bone has a fixed spatial relationship with the first portion of the bone.

17. The method of claim 12, wherein the second portion of the bone has a non-fixed spatial relationship with the first portion of the bone.

18. The method of claim 12, further comprising:

displaying the location of the first marker relative to the surface of the bone in the surface data on a display.