SYSTEM AND METHOD FOR NAVIGATING A SURGICAL NEEDLE TOWARD AN ORGAN OF THE BODY OF A PATIENT

• US 20080132911A1
• Filed: 11/27/2007
• Published: 06/05/2008
• Est. Priority Date: 11/27/2006
• Status: Abandoned Application

• Current Assignee: ST JUDE MEDICAL INTERNATIONAL HOLDING S. R.L.
• Original Assignee: MediGuide Ltd (Abbott Laboratories)
• Inventors: Sobe, Lior
• Application Number:
  US11/945,828
• Publication Number:
  US 20080132911A1
• Time in Patent Office: Days
• US Class Current: 606/130
• CPC Class Codes: A61B 10/0048 for taking amniotic fluid samples
• CPC Class Codes: A61B 10/0233 Pointed or sharp biopsy instruments
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2034/107 Visualisation of planned trajectories or target regions
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2090/3954 magnetic, e.g. NMR or MRI
• 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 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers

Abstract

System for navigating a surgical needle toward a target organ of the body of a patient, the system including a removable mandrel, a medical positioning system (MPS) sensor, an electromagnetic field generator, and an MPS, the removable mandrel being located within the surgical needle, the removable mandrel to be moved in and moved out of the surgical needle, the MPS sensor being located at the tip of the removable mandrel, the electromagnetic field generator generating an electromagnetic field, the MPS being coupled with the MPS sensor and with the electromagnetic field generator, the MPS sensor producing an output according to the electromagnetic field, the MPS determining the position of the tip of the removable mandrel in a coordinate system respective of the MPS, according to the output of the MPS sensor, the MPS producing an indication respective of the position of the tip of the removable mandrel, to enable navigation of the surgical needle toward the target organ.

Claims

1. System for navigating a surgical needle toward a target organ of the body of a patient, the system comprising:

a removable mandrel located within said surgical needle, said removable mandrel to be moved in and moved out of said surgical needle;

a medical positioning system (MPS) sensor located at the tip of said removable mandrel;

an electromagnetic field generator for generating an electromagnetic field; and

an MPS coupled with said MPS sensor and with said electromagnetic field generator, said MPS sensor producing an output according to said electromagnetic field, said MPS determining the position of said tip of said removable mandrel in a coordinate system respective of said MPS, according to said output of said MPS sensor, said MPS producing an indication respective of said position, to enable navigation of said surgical needle toward said target organ.

2. The system according to claim 1, wherein said MPS sensor is located within an MPS housing, said MPS housing being in the form of a cylinder,

wherein said MPS housing is firmly coupled with said tip of said removable mandrel, and

wherein said MPS housing blocks entrance of said undesired bodily substances of said body of said patient, into said surgical needle, while said surgical needle is being advanced toward said target organ.

3. The system according to claim 1, wherein said MPS sensor is located within an MPS housing, said MPS housing being in the form of a tube, and

wherein said MPS housing is firmly coupled with an outer periphery of said removable mandrel, at a distal end of said removable mandrel.

4. The system according to claim 3, wherein an inner diameter of said MPS housing is substantially equal to an outer diameter of said removable mandrel.

5. The system according to claim 3, wherein a housing outer diameter of said MPS housing is substantially equal to a mandrel outer diameter of said removable mandrel,

wherein said removable mandrel includes an undercut at a distal portion thereof, and

wherein said MPS housing is located within said undercut.

6. The system according to claim 1, wherein said MPS sensor is located within an MPS housing, said MPS housing being in the form of an adhesive, covering said MPS sensor.

7. The system according to claim 1, wherein said removable mandrel is in the form of a solid rod.

8. The system according to claim 1, wherein said removable mandrel is in the form of a tube.

9. The system according to claim 1, wherein said MPS sensor is in the form of an electrically conductive coil wound around an outer surface of said removable mandrel.

10. The system according to claim 1, further comprising:

a processor coupled with said MPS sensor;

an image source coupled with said processor, said image source including an organ image of said target organ; and

a display coupled with said processor,

wherein said processor determines said position of said MPS sensor, according to said output,

wherein said processor produces a superposition of a representation of said position on said organ image, and wherein said display displays said superposition.

11. The system according to claim 1, further comprising a radiopaque marker located at said tip of said removable mandrel, wherein said display displays a marker image of said radiopaque marker against an organ image of said target organ.

12. The system according to claim 1, wherein said MPS sensor is coupled with said MPS, via an electric conductor.

13. The system according to claim 1, wherein said indication is selected from the list consisting of:

visual;

aural; and

tactile.

14. The system according to claim 1, wherein said surgical needle is employed to withdraw a sample of a bodily fluid from said target organ.

15. The system according to claim 1, wherein said surgical needle is employed to inject a therapeutic substance into said target organ.

16. The system according to claim 1, wherein said surgical needle is disposable.

17. The system according to claim 1, further comprising a disposable barrier placed over said removable mandrel, said disposable barrier reducing the probability of transfer of a virus or a bacterium from said patient to another patient.

18. The system according to claim 1, wherein said removable mandrel blocks entrance of undesired bodily substances of said body of said patient, into said surgical needle, while said surgical needle is being advanced toward said target organ.

19. Surgical needle system comprising:

a surgical needle;

a removable mandrel located within said surgical needle; and

a medical positioning system (MPS) sensor located at the tip of said removable mandrel, said MPS sensor to be coupled with an MPS, said MPS to be coupled with an electromagnetic field generator, said electromagnetic field generator generating an electromagnetic field, said MPS sensor producing an output according to said electromagnetic field, said MPS determining the position of said tip of said removable mandrel in a coordinate system respective of said MPS, according to said output of said MPS sensor, said MPS producing an indication respective of said position, to enable navigation of said surgical needle toward said target organ.

20. The system according to claim 19, wherein said surgical needle is employed to withdraw a sample of a bodily fluid from said target organ.

21. The system according to claim 19, wherein said surgical needle is employed to inject a therapeutic substance into said target organ.

22. The system according to claim 19, wherein said surgical needle is disposable.

23. Method for navigating a surgical needle toward a target organ of the body of a patient, the surgical needle including a removable mandrel there within, the method comprising the procedures of:

coupling a medical positioning system (MPS) sensor located at the tip of said removable mandrel, with an MPS;

generating an electromagnetic field by an electromagnetic field generator;

producing an output by said MPS sensor, according to said electromagnetic field;

determining coordinates respective of the position of said tip of said removable mandrel, in a coordinate system respective of said MPS, according to said output of said MPS sensor; and

producing an indication respective of said position, according to said determined coordinates, to enable navigation of said surgical needle toward said target organ.

24. The method according to claim 23, further comprising a procedure of producing a superposition of a representation of said position, on an image of said target organ.

25. The method according to claim 23, further comprising a procedure of displaying said superposition.