Threaded connector assembly and methods of making and using the same

• US 10,201,713 B2
• Filed: 06/19/2017
• Issued: 02/12/2019
• Est. Priority Date: 06/20/2016
• Status: Active Grant

• Current Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Neuromodulation Corporation (Boston Scientific Corporation)
• Inventors: Leven, Jacob B.
• Primary Examiner(s): Getzow, Scott M.
• Application Number:
  US15/627,016
• Publication Number:
  US 20170361108A1
• Time in Patent Office: 603 Days
• 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 1/3752 Details of casing-lead connections

Abstract

A connector assembly includes a receptacle body that defines a portion of a connector lumen and further includes connector contacts disposed within the receptacle body along the connector lumen. The connector assembly further includes a rotational member that defines another portion of the connector lumen and includes a head portion and an elongated portion. The elongated portion defines an inner surface and an outer surface. The outer surface is rotatably coupled to the receptacle body. Fastener threading is disposed along at least a portion of the inner surface of the elongated portion. The receptacle body and rotational member are configured and arranged to receive a portion of a lead or a lead extension in the connector lumen.

Claims

1. A connector assembly comprising:

a receptacle body defining a first portion of a connector lumen and comprising a plurality of connector contacts disposed within the receptacle body along the connector lumen; and

a rotational member defining a second portion of the connector lumen and comprising a head portion and an elongated portion extending from the head portion, the elongated portion comprising an inner surface and an outer surface, wherein the outer surface is rotatably coupled to the receptacle body, wherein fastener threading is disposed along at least a portion of the inner surface so that the fastener threading extends along at least part of the second portion of the connector lumen,

wherein the receptacle body and rotational member are configured and arranged to receive a portion of a lead or lead extension in the connector lumen.

2. The connector assembly of claim 1, wherein an axial length of the fastener threading predetermines a stopping point for the lead or lead extension received in the rotational member.

3. The connector assembly of claim 1, wherein the fastener threading is disposed along an entire length of the rotational member.

4. The connector assembly of claim 1, wherein the head portion of the rotational member defines a flared aperture into the connector lumen to facilitate receiving the portion of the lead or lead extension.

5. The connector assembly of claim 1, wherein an outer surface of the head portion of the rotational member comprises a textured outer surface.

13. An electrical stimulation system comprising:

the connector assembly of claim 1;

an electrical stimulation lead comprising an externally threaded portion configured to engage the fastener threading of the rotational member of the connector assembly; and

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

a housing, and

an electronic subassembly disposed in the housing.

14. The electrical stimulation system of claim 13, wherein the connector assembly is disposed in the housing of the control module.

15. The electrical stimulation system of claim 13, further comprising a lead extension coupleable to both the electrical stimulation lead and the control module, wherein lead extension comprises the connector assembly.

6. A connector assembly comprising:

a receptacle body defining a portion of a connector lumen and comprising a plurality of connector contacts disposed within the receptacle body along the connector lumen;

rotational member defining another portion of the connector lumen and comprising a head portion and an elongated portion, the elongated portion comprising an inner surface and an outer surface, wherein the outer surface is rotatably coupled to the receptacle body, wherein fastener threading is disposed along at least a portion of the inner surface; and

an end stop disposed within the receptacle body and terminating the connector lumen,

wherein the receptacle body and rotational member are configured and arranged to receive a portion of a lead or lead extension in the connector lumen.

7. The connector assembly of claim 6, wherein the end stop is embedded into the receptacle body.

8. The connector assembly of claim 6, wherein the end stop is integrally formed as part of the receptacle body.

16. An electrical stimulation system, comprising:

the connector assembly of claim 6; and

an electrical stimulation lead comprising

a lead body having a distal end portion, a proximal end portion, and a longitudinal length;

a plurality of electrodes disposed along the distal end portion of the lead body;

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

a plurality of conductors electrically coupling the plurality of terminals to the plurality of electrodes; and

an externally threaded portion disposed along the proximal end portion of the lead body distal to the plurality of terminals and configured for threaded engagement with the fastener threading of the connector assembly.

17. The electrical stimulation system of claim 16, wherein

the externally threaded portion comprises an externally threaded sleeve.

18. The electrical stimulation system of claim 16, wherein

the externally threaded portion is machined into the lead.

19. The electrical stimulation system of claim 16, wherein

the externally threaded portion comprises a major diameter sized to fit through a percutaneous introducer.

9. A connector assembly comprising:

a receptacle body defining a portion of a connector lumen and comprising a plurality of connector contacts disposed within the receptacle body along the connector lumen;

a rotational member defining another portion of the connector lumen and comprising a head portion and an elongated portion, the elongated portion comprising an inner surface and an outer surface, wherein the outer surface is rotatably coupled to the receptacle body, wherein fastener threading is disposed along at least a portion of the inner surface; and

a collar disposed within the receptacle body, wherein the rotational member is rotatably attached to the collar,

wherein the receptacle body and rotational member are configured and arranged to receive a portion of a lead or lead extension in the connector lumen.

10. The connector assembly of claim 9, wherein the collar is embedded into the receptacle body.

11. The connector assembly of claim 9, wherein the collar is integrally formed as part of the receptacle body.

12. The connector assembly of claim 9, further comprising a stop member extending radially from the rotational member for engagement with the collar, wherein the stop member restrict longitudinal movement of the rotational member relative to the receptacle body.

20. An electrical stimulation system comprising:

the connector assembly of claim 9;

an electrical stimulation lead comprising an externally threaded portion configured to engage the fastener threading of the rotational member of the connector assembly; and

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

a housing, and

an electronic subassembly disposed in the housing.