Implantable medical device providing stimulation therapy

• US 8,989,864 B2
• Filed: 04/11/2014
• Issued: 03/24/2015
• Est. Priority Date: 02/24/2011
• Status: Active Grant

• Current Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Inventors: Funderburk, Jeffery V., Brase, Randy L., Tong, Robert R., Rahman, Md. Mizanur
• Primary Examiner(s): Koharski, Christopher D
• Assistant Examiner(s): MAHMOOD, NADIA AHMAD
• Application Number:
  US14/251,488
• Publication Number:
  US 20140222111A1
• Time in Patent Office: 347 Days
• Field of Search: 607/28, 607/45, 607/116, 600/372
• US Class Current: 607/45
• CPC Class Codes: A61N 1/36125 Details of circuitry or electric components
• CPC Class Codes: A61N 1/37211 Means for communicating with stimulators
• CPC Class Codes: A61N 1/3752 Details of casing-lead connections
• CPC Class Codes: A61N 1/3754 Feedthroughs
• CPC Class Codes: A61N 1/3787 from an external energy source

Abstract

An electrical stimulation system provides stimulation therapy to a patient. The system includes a neurostimulation lead that contacts patient tissue and couples with an implantable stimulation device, such as an implantable pulse generator, that receives stimulation parameters for providing stimulation therapy to a patient. The implantable stimulation device includes a header with a plurality of connector assemblies that receive an end of the neurostimulation lead, and a case containing a charging coil and a telemetry coil coupled to programming circuitry on a printed circuit board, which is in turn coupled to the connector assemblies via a feedthrough assembly. The telemetry coil receives data from an external programmer and transmits the data to the programming circuitry, which in turn uses the data to communicate to the connector assemblies and the neurostimulation lead to provide stimulation therapy to a patient.

Claims

1. A tissue stimulation system, comprising:

at least one implantable neurostimulation lead; and

an implantable neurostimulator comprising,

at least one connector assembly configured for respectively receiving the at least one neurostimulation lead,

a case,

a circuit board positioned in the case,

a telemetry coil positioned in the case that is electrically coupled to the circuit board and spaced a distance away from the circuit board, and

a charging coil positioned in the case that is electrically coupled to the circuit board.

2. The tissue stimulation system of claim 1, wherein the neurostimulator further comprises a spacer on which the telemetry coil is positioned for spacing the telemetry coil the distance away from the circuit board.

3. The tissue stimulation system of claim 2, wherein the neurostimulator further comprises a plurality of pins affixed to the spacer, wherein at least one of the pins electrically couples the telemetry coil to the circuit board, and at least one of the pins mechanically couples the telemetry coil to the circuit board.

4. The tissue stimulation system of claim 2, wherein the spacer comprises a bobbin.

5. The tissue stimulation system of claim 1, further comprising decoupling circuitry that selectively alters operation of the charging coil.

6. The tissue stimulation system of claim 5, wherein the decoupling circuitry selectively alters operation of the charging coil based on one or more operating factors of at least one of the charging coil and the telemetry coil.

7. The tissue stimulation system of claim 1, wherein the at least one connector assembly comprises two or more connector assemblies.

8. The tissue stimulation system of claim 7, wherein the two or more connector assemblies comprise four connector assemblies.

9. An implantable neurostimulator, comprising:

a case;

a circuit board positioned in the case;

a telemetry coil positioned in the case that is electrically coupled to the circuit board and spaced a distance away from the circuit board; and

a charging coil positioned in the case that is electrically coupled to the circuit board.

10. The neurostimulator of claim 9, further comprising a spacer on which the telemetry coil is positioned for spacing the telemetry coil the distance away from the circuit board.

11. The neurostimulator of claim 10, further comprising a plurality of pins affixed to the spacer, wherein at least one of the pins electrically couples the telemetry coil to the circuit board, and at least one of the pins mechanically couples the telemetry coil to the circuit board.

12. The neurostimulator of claim 10, wherein the spacer comprises a bobbin.

13. The neurostimulator of claim 9, further comprising decoupling circuitry that selectively alters operation of the charging coil.

14. The neurostimulator of claim 13, wherein the decoupling circuitry selectively alters operation of the charging coil based on one or more operating factors of at least one of the charging coil and the telemetry coil.

15. The neurostimulator of claim 9, further comprising at least one connector assembly configured for receiving at least one neurostimulation lead.

16. The neurostimulator of claim 15, wherein the at least one connector assembly comprises two or more connector assemblies.

17. The neurostimulator of claim 16, wherein the two or more connector assemblies comprise four connector assemblies.