Integrated skin-mounted multifunction device for use in image-guided surgery

• US 20060173269A1
• Filed: 11/14/2005
• Published: 08/03/2006
• Est. Priority Date: 11/12/2004
• Status: Active Grant

• Current Assignee: Philips Electronics Limited (Koninklijke Philips N.V.)
• Original Assignee: Philips Electronics Limited (Koninklijke Philips N.V.)
• Inventors: Glossop, Neil David
• Granted Patent: US 7,751,868 B2
• Time in Patent Office: Days
• US Class Current: 600/407
• CPC Class Codes: A61B 2560/0412 Low-profile patch shaped housings
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/064 using markers A61B5/062 takes precedence
• CPC Class Codes: A61B 5/7285 for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal A61B6/5205, A61B6/541, A61B8/5207, A61B8/543 take precedence
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

The invention comprises an integrated skin-mountable multifunction device for use with a computer assisted or image guided surgical system and methods of using the same, wherein the multifunction device includes a patient mountable portion that has at least one position indicating element and at least one imageable pattern whose geometry is known in a coordinate system of the at least one position indicating element, wherein the imageable pattern is visible on an imaging modality. The multifunction device may also include a monitoring device capable of measuring a physiological parameter of a patient for use in gating image or position signals or for other purposes.

Claims

1. An integrated skin-mountable multifunction device for use with an image guided surgical system, the device comprising:

a patient mountable portion including;

at least one position indicating element, and

at least one imageable pattern whose geometry is known in a coordinate system of the at least one position indicating element, wherein the imageable pattern is visible on an imaging modality.

2. The device of claim 1, wherein the imaging modality comprises one or more of computerized tomography, magnetic resonance, positron emission tomography, fluoroscopy, or x-ray.

3. The device of claim 1, wherein the imageable pattern comprises at least one of:

one or more integrated pathways that are uniquely identifiable from images of the device;

or

one or more integrated shapes that are uniquely identifiable from images of the device.

4. The device of claim 1, wherein the imageable pattern comprises one or more fiducial markers forming a pattern that is uniquely identifiable from images of the device.

5. The device of claim 1, wherein the imageable pattern is removably attached to the patient mountable portion.

6. The device of claim 1, wherein the at least one position indicating element exists in a known relation to a coordinate system associated with the imageable pattern.

7. The device of claim 1, further comprising a monitoring device capable of measuring a physiological parameter of a patient.

8. The device of claim 7, wherein the physiological parameter is one of a heartbeat, heart electrical signals, or a cycle of respiration.

9. The device of claim 1, wherein the patient mountable portion further comprises an integrated memory device that is programmed with information enabling the device to be uniquely identified.

10. The device of claim 1, wherein the patient mountable portion contains markings visible to a physician to indicate its correct placement on the patient.

11. The device of claim 1, wherein the patient mountable portion further comprises grooves or divots within the patient mountable portion, such that coordinates corresponding to the groves or divots may be obtained using a tracked probe associated with a tracking device.

12. The device of claim 1, wherein the imageable pattern is etched on a circuit board.

13. An integrated skin-mountable multifunction device for use with an image guided surgical system, the device comprising:

a patient mountable portion comprising a base layer and a cover layer, wherein the base layer is removably attachable to a skin surface of a patient;

a circuit board attached to the patient mountable portion having at least one position indicating element attached thereto; and

at least one imageable pattern attached to the patient mountable portion whose geometry is known in a coordinate system of the at least one position indicating element, wherein the at least one imageable pattern is visible via an imaging modality.

14. A method for imaging a surgical instrument within a patient during a surgical intervention performed on the patient using a multifunction device, wherein the surgical instrument is equipped with one or more surgical position indicating elements, wherein the multifunction device includes one or more imageable patterns and one or more external position indicating elements, wherein the position and orientation of the surgical and external position indicating elements may be obtained using a tracking device, the method comprising:

placing the multifunction device onto the patient;

obtaining one or more images of the patient, wherein the one or more imageable patterns are visible on the one or more images;

receiving image-space data regarding the geometry of the one or more imageable patterns in the coordinate system of the one or more images;

receiving patient-space data regarding position information of the one or more external position indicating elements in the coordinate system of the tracking device;

registering the patient-space data in the coordinate system of the tracking device to the image-space data in the coordinate system of the images; and

measuring at least one physiological parameter of the patient using the multifunction device,

displaying the location of the one or more surgical position indicating elements on the one or more images relative to the location of the one or more external position indicating elements, wherein the display is gated by the at least one physiological parameter.

15. The method of claim 14 wherein the at least one physiological parameter includes one or more of respiration activity or heart activity.

16. The method of claim 14, wherein the geometry of the one or more imageable patterns is known in the coordinate system of the tracking device.