Leads with electrodes disposed in mesh material and methods and systems using the leads

• US 9,604,048 B2
• Filed: 08/29/2014
• Issued: 03/28/2017
• Est. Priority Date: 09/05/2013
• Status: Active Grant

• Current Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Inventors: Govea, Michael X.
• Primary Examiner(s): Heller, Tammie K
• Application Number:
  US14/473,731
• Publication Number:
  US 20150066122A1
• Time in Patent Office: 942 Days
• US Class Current: 1/1
• CPC Class Codes: A61N 1/05 for implantation or insertion into the body, e.g. heart electrode A61N1/06 takes precedence
• 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: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor

Abstract

An electrical stimulation lead has a distal end portion, a proximal end portion, and a longitudinal length and includes a lead body extending along the lead. The lead body includes an expandable mesh disposed along the distal end portion of the lead. The electrical stimulation lead also includes a number of electrodes attached to the mesh and a number of terminals disposed along the proximal end portion of the electrical stimulation lead. Further, the electrical stimulation lead includes multiple conductors electrically coupling the terminals to the electrodes.

Claims

1. An electrical stimulation lead having a distal end portion, a proximal end portion, and a longitudinal length, the lead comprising:

a lead body extending along the lead, the lead body comprising an expandable mesh disposed along the distal end portion of the lead;

a plurality of electrodes attached to the mesh, each of the electrodes comprising an electrode body and a hook element coupled to the electrode body and hooked into the mesh to hold the electrode in place,

a plurality of terminals disposed along the proximal end portion of the lead; and

a plurality of conductors electrically coupling the terminals to the electrodes, wherein a portion of each of the conductors is woven into the mesh,

wherein each of the plurality of electrodes is attached directly to the mesh and to a one of the plurality of conductors.

2. The electrical stimulation lead of claim 1, further comprising a cylindrical element disposed along at least the distal end portion of the lead, wherein the mesh is contracted around the cylindrical element.

3. The electrical stimulation lead of claim 2, wherein the cylindrical element comprises at least one longitudinal lumen, and wherein a portion of each of the conductors extends within one of the at least one longitudinal lumen.

4. The electrical stimulation lead of claim 1, wherein at least a portion of the mesh is arranged in a form of a paddle at the distal end portion of the lead.

5. The electrical stimulation lead of claim 1, wherein the hook element and the electrode body are formed of a same conductive material.

6. An electrical stimulating system comprising:

the electrical stimulation lead of claim 1;

a control module coupleable to the electrical stimulation lead, the control module comprising

a housing, and

an electronic subassembly disposed in the housing; and

a connector for receiving the electrical stimulation lead, the connector having a proximal end, a distal end, and a longitudinal length, the connector comprising

a connector housing defining a port at the distal end of the connector, the port configured and arranged for receiving the proximal end portion of the electrical stimulation lead, and

a plurality of connector contacts disposed in the connector housing, the plurality of connector contacts configured and arranged to couple to at least one of the plurality of terminals disposed on the proximal end portion of the electrical stimulation lead.

7. The electrical stimulation lead of claim 1, wherein the mesh is contractible and each electrode of the plurality of electrodes is disposed at a particular longitudinal position along the lead body, wherein the particular longitudinal position of each of the plurality of electrodes along the lead body is changeable by expanding or contracting the mesh.

8. The electrical stimulation lead of claim 1, wherein the electrodes move longitudinally with respect to one another upon expansion or contraction of the mesh.

9. The electrical stimulation lead of claim 1, wherein the lead body consists of the mesh.

10. The electrical stimulation lead of claim 1, wherein each of the electrodes further comprising a linking member attaching the hook element to the electrode body, wherein the linking member has a smaller cross-section than the hook element.