摘要:
In general, the invention is directed to techniques for implantation of a low-profile implantable medical device (IMD) in the body of a patient. In an exemplary embodiment, the low-profile IMD is implanted under the scalp. When the treatment or monitoring site is in or on the head of the patient, the low-profile IMD can be implanted under the scalp proximate to the treatment or monitoring site. In one embodiment, the invention is directed to a method that includes making an incision in the scalp of a head of a patient to create a scalp flap, exposing a skull beneath the scalp flap, creating a pocket between the scalp and the skull, and placing at least a portion of a low-profile IMD in the pocket. The low-profile IMD may include a plurality of modules, covered in part by a flexible overmold.
摘要:
An implantable medical device (IMD) including a nonhermetic battery is described. The IMD includes components and a power source module that includes the nonhermetic battery. The IMD also includes a barrier to substantially impede movement of substances from the nonhermetic battery to the components. The barrier may include a hermetic feedthrough, a gel, a polymer, or a solid electrolyte within the nonhermetic battery, and a seal member. The barrier may also be a material that encapsulates the nonhermetic battery and a getter within the IMD. In some embodiments, the IMD comprises a modular IMD including an interconnect member. In that case, the barrier may include a material that fills at least a portion of a void defined by the interconnect member. A length and a cross-sectional area of the interconnect member may also act as a barrier.
摘要:
A medical lead is provided for use in a pulse stimulation system of the type which includes a pulse generator for producing electrical stimulation therapy. The lead comprises an elongate insulating body and at least one electrical conductor within the insulating body. 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 is coupled to the conductor.
摘要:
A process is described for non-invasively screening a patient to select a stimulation site for treatment of head, neck or facial pain and tension symptoms caused by disorders such as occipital neuralgia. The screening process involves application of a transcutaneous stimulation screening device, a percutaneous micro-electrode screening device, and a temporary implantable screening device to the patient to select a site for chronic implantation.
摘要:
The disclosure describes a process for non-invasively screening a patient to select a stimulation site for treatment of head, neck or facial pain and tension symptoms caused by disorders such as occipital neuralgia. The screening process involves application of a transcutaneous stimulation screening device, a percutaneous micro-electrode screening device, and a temporary implantable screening device to the patient to select a site for chronic implantation.
摘要:
The disclosure describes an implantable neurostimulator device for delivery of neurostimulation to treat head, neck, or facial pain or tension, including pain or tension caused by occipital neuralgia. The device may be a neurostimulation device having a miniaturized housing with a low profile that permits subcutaneous implantation at a stimulation site directly adjacent a neuralgic region at the back of the neck of a patient. For example, the device may be subcutaneously implanted at the back of the neck of a patient to relieve symptoms of occipital neuralgia.
摘要:
Techniques for selectably providing either constant voltage or constant current stimulation are described. A programming device provides a user interface by which a user selects either constant voltage or constant current stimulation, and selects either a voltage or current amplitude based on the selected stimulation mode. The programming device configures a medical device to provide the selected mode of stimulation at the selected amplitude. For example, when a medical device has constant voltage stimulation circuitry, e.g., circuitry including a voltage source, and the user selects constant current stimulation, the programming device configures the medical device to adjust the voltage amplitude based on a measured impedance to provide substantially constant current amplitude.
摘要:
An implantable medical device with lubricious material permits implantable medical devices to have a reduced friction between the device and at least a portion of the surrounding tissue. The implantable medical device may have a housing or it may have a housing and a member for providing a smooth interface between the device and the tissue. The lubricious material may be provided on or impregnated in the housing or the member. In some embodiments, the device is configured for implantation in the head of a human body. In other embodiments, the device is configured for implantation between the cranium and the scalp. In some embodiments, the device includes a single module while in other embodiments a plurality of modules are coupled together to provide a smaller profile.
摘要:
The disclosure describes an implantable neurostimulator device for delivery of neurostimulation to treat head, neck, or facial pain or tension, including pain or tension caused by occipital neuralgia. The device may be a neurostimulation device having a miniaturized housing with a low profile that permits subcutaneous implantation at a stimulation site directly adjacent a neuralgic region at the back of the neck of a patient. For example, the device may be subcutaneously implanted at the back of the neck of a patient to relieve symptoms of occipital neuralgia.
摘要:
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.