Implantable pulse generator that generates spinal cord stimulation signals for a human body

• US 10,080,896 B2
• Filed: 10/21/2016
• Issued: 09/25/2018
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Cirtec Medical Corp.
• Original Assignee: Cirtec Medical Corp.
• Inventors: Curtis, Miles, Van Leer, Kyle, Cameron, Andrew, Khalil, Saif
• Primary Examiner(s): Stice, Paula J
• Application Number:
  US15/299,550
• Publication Number:
  US 20170036026A1
• Time in Patent Office: 704 Days
• CPC Class Codes: A61N 1/025 Digital circuitry features of electrotherapy devices, e.g. memory, clocks, processors
• CPC Class Codes: A61N 1/0551 Spinal or peripheral nerve electrodes
• CPC Class Codes: A61N 1/0553 Paddle shaped electrodes, e.g. for laminotomy
• CPC Class Codes: A61N 1/0558 Anchoring or fixation means therefor
• CPC Class Codes: A61N 1/36071 Pain
• CPC Class Codes: A61N 1/36125 Details of circuitry or electric components
• CPC Class Codes: A61N 1/36178 Burst or pulse train parameters
• CPC Class Codes: A61N 1/37229 Shape or location of the implanted or external antenna
• CPC Class Codes: A61N 1/37235 Aspects of the external programmer
• CPC Class Codes: A61N 1/37241 providing test stimulations
• CPC Class Codes: A61N 1/3752 Details of casing-lead connections
• CPC Class Codes: A61N 1/3787 from an external energy source

Abstract

An implantable pulse generator (IPG) that generates spinal cord stimulation signals for a human body has a programmable signal generator that can generate the signals based on stored signal parameters without any intervention from a processor that controls the overall operation of the IPG. While the signal generator is generating the signals the processor can be in a standby mode to substantially save battery power.

Claims

1. A spinal cord stimulation system comprising:

an implantable pulse generator;

a plurality of electrodes for delivering electrical pulses to a patient;

a plurality of leads connecting the plurality of electrodes to the implantable pulse generator;

an anchor for maintaining at least one of the plurality of leads in a desired position within the patient, wherein the anchor includes a sleeve; and

a locking block configured to be received into the sleeve

wherein the locking block includes a blocking screw and a locking screw, wherein the locking screw includes a cam portion to impinge at least one of the plurality of lead in a locked position and is further configured to engage the blocking screw in an unlocked position.

2. The spinal cord stimulation system of claim 1, wherein the anchor comprises a center lumen for receiving at least one of the plurality of leads therein.

3. The spinal cord stimulation system of claim 1, wherein the locking block comprises a locking screw for engaging at least one of the plurality of leads therein.

4. The spinal cord stimulation system of claim 3, wherein the locking screw comprises a threaded portion and a cam portion.

5. The spinal cord stimulation system of claim 1, wherein the locking block comprises a locking screw and a blocking screw.

6. The spinal cord stimulation system of claim 5, wherein the locking screw comprises a threaded portion and a cam portion.

7. The spinal cord stimulation system of claim 1, wherein the anchor comprises one or more eyelets for receiving a suture therein.

8. The spinal cord stimulation system of claim 7, wherein the anchor comprises one or more suture surfaces for engaging a suture.

9. The spinal cord stimulation system of claim 1, wherein the anchor is configured to receive a multi-lumen lead.

10. The spinal cord stimulation system of claim 1, wherein the locking block includes a blocking screw and a locking screw, wherein the locking screw includes a cam portion to impinge at least one of the plurality of lead in a locked position and further configured to engage the blocking screw in an unlocked position.

11. The spinal cord stimulation system of claim 10, wherein the locking screw includes an upper threaded portion and is configured to be downwardly threaded into a threaded receiver of the anchor.

12. The spinal cord stimulation system of claim 11, wherein the blocking screw is configured to prevent back out of the locking screw from the threaded receiver.

13. The spinal cord stimulation system of claim 12, wherein the cam portion engages the blocking screw when rotated approximately 180 degrees relative to the locked position.