Abstract:
A neurostimulation lead is configured to be implanted into a patient's body and has at least one distal electrode. The lead comprises at least one conductive filer electrically coupled to the distal electrode, a jacket for housing the conductive filer and a shield surrounding at least a portion of the filer for reducing electromagnetic coupling to the filer.
Abstract:
The invention is directed to a recharging system and associated techniques to recharge an implantable medical device (IMD). In particular, a recharging system according to the invention comprises a headset having an energy delivery module that delivers energy to a power source of an IMD implanted on or within the cranium of a patient. The energy delivery module may comprise a coil for inductive transfer of energy to the power source. The headset may be configured for placement over the head of the patient, and may further only partially cover the top of the head. The energy delivery module may be adjustably coupled to the headset. In some embodiments, the position of the energy delivery module may be adjusted along three or four axes, including a rotational axis, allowing the coil to be placed over an IMD located at any of a variety of locations on or within the cranium.
Abstract:
In an implantable medical device having individual modules, a coupling module couples the modules to one another. The coupling module supports electrical and/or mechanical coupling of the modules. The coupling module may assume a variety of shapes or configurations. The various embodiments of the coupling module may offer the modules varying degrees of freedom of movement relative to one another.
Abstract:
A modular implantable medical device (101, 201, 301, 401, 501, 601, 701, 801) includes two or more interconnected modules (103-105, 210-212, 410-412, 510-512, 610, 710-712, 810, 910) and an overmold (106, 214, 302, 413, 522, 622, 722, 822) that at least partially encapsulates each of the housings of the modules. The overmold also includes a lead connection module (213A-B, 303A-B, 415A-B, 613, 813) for accepting an external lead. The lead connection module electrically and mechanically couples the lead to the components of the implantable medical device.
Abstract:
A lithium battery includes a housing and a first electrode and a second electrode provided within the housing. A first tab is coupled to the first electrode and a second tab coupled to the second electrode. A pin is coupled to the second tab and extends to a location outside the housing. At least one of the first tab, the second tab, and the pin are formed from a material comprising vanadium.
Abstract:
Delivery of peripheral nerve field stimulation (PNFS) in combination with one or more other therapies is described. The other therapy delivered in combination with PNFS may be, for example, a different type of neurostimulation, such as spinal cord stimulation (SCS), or a drug. PNFS and the other therapy may be delivered simultaneously, in an alternating fashion, according to a schedule, and/or selectively, e.g., in response to a request received from a patient or clinician. A combination therapy that includes PNFS may be able to more completely address complex or multifocal pain than would be possible through delivery of either PNFS or other therapies alone. Further, the combination of PNFS with one or more other therapies may reduce the likelihood that neural accommodation will impair the perceived effectiveness PNFS or the other therapies.
Abstract:
An implantable medical device (198, 199, 209, 219, 229, 239) for implantation in the head of a patient. The implantable medical device has a plurality of interconnected modules (200, 202, 206, 212, 214, 216, 222, 224, 226, 232, 234, 236, 242, 244, 246) one or more of which are covered by an overmold (204, 210, 220, 230, 240) and one or more of which are partially covered by the overmold. The module(s) covered by the overmold may be implanted between the cranium and scalp, while the module(s) partially covered by the overmold may be placed at least partially into a recess in the cranium.
Abstract:
A medical lead is provided for use in a pulse stimulation system of the type which includes a pulse generator (102) for producing electrical stimulation therapy. The lead comprises an elongate insulating body (120) and at least one electrical conductor (106) within the insulating body (120). The conductor has a proximal end configured to be electrically coupled to the pulse generator and has a DC resistance in the range of 375-2000 ohms. At least one distal electrode (114) is coupled to the conductor (106).
Abstract:
In general, the invention is directed to apparatus and techniques that aid in the removal or explantation of an implantable medical device (IMD) under the scalp of a patient. The various embodiments of the invention address risks associated with the explantation, such as the risk of damage to leads, the risk of damage to the IMD, the risk that the incision may hinder the explantation, and the risk that the IMD may be difficult to remove. In some embodiments, the invention is directed to apparatus that help the surgeon identify the location of the implanted elements, and that protect the implanted elements from inadvertent damage. In other embodiments, the invention is directed to techniques that facilitate the removal of the IMD.