Abstract:
Implantable electrical stimulation leads, lead anchors and suture sleeves, as well as methods of making and using the leads, lead anchors, suture sleeves and electrical stimulation systems are described. The lead anchors and suture sleeves present a number of strategies for anchoring a lead within tissue of a patient.
Abstract:
A lead anchor includes a plurality of parallel tubular members and at least one suture element configured and arranged for receiving a suture to suture the lead anchor to patient tissue. Each tubular member defines a lead lumen having a first opening and a second opening through which a lead can pass.
Abstract:
An implantable lead includes a lead body having a plurality of electrodes disposed on a distal end of the lead body, a plurality of terminals disposed on a proximal end of the lead body, and a plurality of conductors disposed along the lead body such that each conductor electrically couples at least one of the electrodes to at least one of the terminals. At least one of the electrodes or terminals includes a multi-element contact assembly. The multi-element contact assembly includes at least one conductive inner element and at least one conductive outer element disposed over the inner element. At least one of the plurality of conductors is electrically coupled to one of the multi-element contact assemblies such that the conductor is positioned against the at least one inner element. The at least one outer element includes a region that is in contact with the at least one inner element.
Abstract:
A connector assembly includes a lead or a lead extension, a connector, and a retention assembly disposed in the connector. The connector includes a connector housing defining a port at a distal end of the connector, and a plurality of connector contacts disposed in the connector housing. The port is configured and arranged for receiving a proximal end of the lead or the lead extension. The connector contacts are configured and arranged to couple to at least one terminal disposed on the proximal end of the lead or the lead extension. The retention assembly includes a retention mechanism that can be engaged and reversibly disengaged without the use of tools beyond conventional operating-room surgical instruments.
Abstract:
A burr hole plug comprises a plug base configured for being mounted around a cranial burr hole. The plug base includes an aperture through which an elongated medical device exiting the burr hole may pass. The burr hole plug further comprises a retainer configured for being mounted within the aperture of the plug base. The retainer includes a retainer support, a slot formed in the retainer support for receiving the medical device, and a clamping mechanism having a movable clamping element and a cam configured for being rotated relative to the retainer support to linearly translate the movable clamping element into the slot, thereby securing the medical device. The retainer further comprises another clamping mechanism having another movable clamping element and another cam configured for being rotated relative to the retainer support to linearly translate the other movable clamping element, thereby laterally securing the retainer within the plug base.
Abstract:
A lead includes a plurality of electrodes disposed on the distal end of the lead, a plurality of contact terminals disposed on the proximal end of the lead, a plurality of conductor wires extending along the lead to couple the electrodes electrically to the contact terminals, a central lumen defined by the lead and extending from the proximal end of the lead towards the distal end of the lead, and a tubular stiffener disposed in the proximal end of the central lumen. The tubular stiffener is configured and arranged to facilitate insertion of the proximal end of the lead into a connector.
Abstract:
A lead introducer includes a multi-piece insertion needle insertable into a splitable member. The multi-piece insertion needle includes an outer insertion needle that defines an open channel that extends along substantially entirely a length of the outer insertion needle and an inner insertion needle configured and arranged for insertion into the open channel of the outer insertion needle. The splitable member includes at least two pull-apart tabs and at least one weakened region extending along at least a portion of a length of the splitable member from between the at least two pull-apart tabs. The at least one weakened region is configured and arranged for separating when the at least two pull-apart tabs are pulled apart.
Abstract:
A lead extension for an electrical stimulation system includes a connector disposed on a first end of a body. The connector includes a housing defining at least one port. Each of the at least one ports is configured to receive a proximal end of a lead. A plurality of connector contacts are disposed in each of the at least one ports. The connector contacts are configured to electrically couple to terminals of a lead when the lead is received by the housing. A first connector flange extends outwardly from a first side of the housing. A plurality of conductors extend along a length of the lead extension and electrically couple at least one of the connector contacts to at least one terminal disposed on a second end of the body.
Abstract:
A burr hole plug comprises a plug base configured for being mounted around a burr hole. The plug base includes an aperture through which an elongated medical device exiting the burr hole may pass. The burr hole plug further comprises a retainer configured for being mounted within the aperture of the plug base. The retainer further includes first and second slidable clamping mechanisms configured for securing the medical devices therebetween within the aperture of the plug base. A method comprises introducing the medical device through the burr hole, mounting a plug base around the burr hole, such that the medical device extends through the plug base aperture, mounting the retainer within the aperture of the plug base, and sliding the first and second clamping mechanisms secure the medical device therebetween.
Abstract:
A lead assembly includes a lead and a stylet. The lead has a distal end, a proximal end, and an outer lead covering. The lead includes a plurality of electrodes disposed at the distal end, a plurality of terminals disposed at the proximal end, and at least one lumen defined in the lead that extends from the distal end to the proximal end. The lead also includes a plurality of conductive wires electrically coupling the plurality of electrodes to the plurality of terminals. The stylet is configured and arranged for inserting into one of the at least one lumens of the lead. The stylet includes an elongated body and a protective feature that is coupled to the elongated body. The protective feature is configured and arranged for absorbing or redirecting an amount of force applied to the stylet above a threshold amount of force.