Methods and systems for placing an implanted stimulator for stimulating tissue

• US 7,684,858 B2
• Filed: 09/21/2005
• Issued: 03/23/2010
• Est. Priority Date: 09/21/2005
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Inventors: Johnson, Peter K., Whitehurst, Todd K., Mann, Alfred E., He, Tom Xiaohai
• Primary Examiner(s): Layno; Carl H
• Assistant Examiner(s): Gedeon; Brian T
• Application Number:
  US11/232,540
• Publication Number:
  US 20070066997A1
• Time in Patent Office: 1,644 Days
• Field of Search: 607/3, 607/2, 607/61
• US Class Current: 607/2
• CPC Class Codes: A61N 1/372 Arrangements in connection with the implantation of stimulators
• CPC Class Codes: A61N 1/37205 Microstimulators, e.g. implantable through a cannula

Abstract

Systems for providing stimulation with an implantable system control unit and for optimally positioning that system control unit include a system control unit configured to provide a stimulus to a patient with a member attached to the system control unit for pulling the system control unit into position within the patient. Methods of optimally positioning the implantable system control unit within a patient such that the system control unit is proximal to target tissue that is to be stimulated by the system control unit include threading a member through a patient'"'"'s body using a needle, the member passing proximal to the target tissue and being attached to the system control unit, and pulling the system control unit into place with the member.

Claims

1. A system comprising:

an implantable system control unit (SCU) configured to provide a stimulus to a patient;

two lines attached to said SCU at two respective attachment points for pulling said SCU in different directions into position during placement of said SCU within said patient; and

two caps respectively disposed over said two attachment points.

2. The system of claim 1, further comprising a plurality of electrodes configured to deliver an electrical stimulation to said patient.

3. The system of claim 1, wherein each of said two lines comprises suture silk.

4. The system of claim 1, further comprising two eyelets on said SCU to which said two lines are respectively attached.

5. The system of claim 1, wherein said electrodes are mounted to the SCU.

6. The system of claim 1, wherein said first line and said second line are respectively attached to opposite ends of said SCU, such that said SCU can be pulled in opposite directions.

7. A method of positioning an implantable system control unit (SCU) within a patient comprising:

threading a first line through said patient using a needle, such that said first line passes proximal to target tissue that is to be stimulated by said SCU; and

pulling said SCU in different directions into place with said first line attached to said SCU and a second line attached to said SCU, such that said SCU is proximal to said target tissue.

8. The method of claim 7, further comprising applying an electrical stimulation pulse to said needle when inserting said needle proximal to said target tissue to confirm that said needle is passing proximal to said target tissue.

9. The method of claim 8, further comprising repositioning said needle based on effects of said electrical stimulation pulse.

10. The method of claim 7, further comprising flossing said SCU into position by pulling selectively on both said first line and said second line.

11. The method of claim 7, further comprising securing said SCU in position.

12. The method of claim 11, wherein securing said SCU is performed by securing said second line at a needle insertion point and securing said first line at a needle exit point.

13. The method of claim 12, wherein securing said first line and said second line comprises suturing said second line at said needle insertion point and suturing said first line at said needle exit point.

14. The method of claim 7, wherein said target tissue is located in a neck of said patient and said threading said first line comprises threading said first line through a portion of said patient'"'"'s neck.

15. The method of claim 7, wherein said target tissue is located in a limb of said patient and said threading said first line comprises threading said first line through a portion of said patient'"'"'s limb.

16. The method of claim 7, further comprising threading said first line through an anchor point to curve a path of implantation.

17. The method of claim 16, further comprising creating said anchor point by inserting a tool within said patient along which said first line is guided when pulling said SCU.

18. The method of claim 7, wherein the SCU is pulled in opposite directions.

19. The method of claim 7, wherein said SCU is pulled in different directions while said second line extends from a needle insertion point and while said first line extends from a needle exit point.

20. The method of claim 7, further comprising attaching said first line to said SCU after said first line has been threaded through said patient.

21. The method of claim 7, wherein said needle is curved, such that said first line is threaded along a curved path.

22. A system comprising:

an implantable system control unit (SCU) configured to provide a stimulus to a patient;

a member attached to said SCU at an attachment point for pulling said SCU into position within said patient; and

a cap disposed over said attachment point.

23. The system of claim 22, further comprising a plurality of electrodes configured to deliver an electrical stimulation to said patient.

24. The system of claim 22, wherein said member comprises a line.

25. The system of claim 24, wherein said line comprises suture silk.

26. The system of claim 24, further comprising two lines attached to said SCU for pulling said SCU in different directions during placement of said SCU within said patient.

27. The system of claim 24, further comprising an eyelet on said SCU to which said line is attached.