Abstract: Miniature implantable stimulators (i.e., microstimulators) with programmably configurable electrodes allow, among other things, steering of the electric fields created. In addition, the microstimulators are capable of producing unidirectionally propagating action potentials (UPAPs).

Abstract: A communication system is provided for a patient featuring a cushion with an opening for receiving the face of the patient. The cushion includes a microphone for receiving audible signals from the patient and one or more speakers for delivering audible signals to the patient. The microphone and speaker(s) are integrated with the cushion to avoid interfering with the comfort of the patient. In one embodiment, the audible signals are delivered to and from the patient via a communication port. In another embodiment, the system includes a display device, so the patient may view parts of the patient's body on the device and then communicate with system operators through the microphone and speaker(s).

Abstract: Methods of applying a stimulus to a stimulation site within the neck or head of a patient include implanting a distal portion of one or more leads adjacent to the stimulation site, forming a loop with a proximal portion of the one or more leads, and securing the distal and proximal portions of the one or more leads to one or more securing sites with one or more securing devices. The distal portion of the one or more leads includes a number of electrodes disposed thereon that are configured to deliver the stimulus to the stimulation site. Systems for applying a stimulus to a stimulation site within the neck or head of a patient include one or more leads having a number of electrodes disposed on a distal portion thereof and one or more securing devices configured to secure the one or more leads to one or more securing sites. The distal portion of the one or more leads is implanted adjacent to the stimulation site and the electrodes are configured to deliver the stimulus to the stimulation site.

Abstract: A burr hole sealing device for preventing brain shift during a stimulation lead implantation procedure is provided. The device includes a suction cup ring and a self-sealing membrane positioned within the aperture of the ring. The sealing device is attached adjacent to a burr hole and over a dura layer that is exposed in the bottom of the burr hole. The stimulation lead is disposed through the burr hole, through the membrane, through the dura layer and into brain tissue. The membrane is configured to allow the lead to pass therethrough while maintaining a tight seal around the diameter of the lead, thereby hindering leakage of cerebrospinal fluid out of the cranial cavity and maintaining a substantially fixed intracranial pressure. In one embodiment, the sealing device includes a syringe for adding fluid to, or removing fluid from, the cranial cavity in response to a detected change in intracranial pressure.

Abstract: A patient's ejection fraction is maximized through simultaneous sensing and stimulating across multiple electrodes. In one exemplary embodiment, a catheter or lead having multiple electrodes connected to a pulse generator is used. The pulse generator provides individual current control of the stimulus applied to each electrode, and further includes the ability to sense intrinsic and evoked depolarization through multiple electrodes. In another exemplary embodiment, a multiplicity of individual implantable microstimulators, each having its own current source and/or sensor and electrodes, cooperate in concert to provide multi-site stimulation and sensing.

Abstract: An implantable stimulator(s), small enough to be located near or adjacent to an autonomic nerve(s) innervating urinary and/or gastrointestinal structures, uses a power source/storage device, such as a rechargeable battery. Periodic recharging of such a power source/storage device is accomplished, for example, by inductive coupling with an external appliance. The small stimulator provides a means of stimulating a nerve(s) or other tissue when desired, without the need for external appliances during the stimulation session. When necessary, external appliances are used for the transmission of data to and/or from the stimulator(s) and for the transmission of power, if necessary. In a preferred embodiment, the system is capable of open- and closed-loop operation. In closed-loop operation, at least one implant includes at least one sensor, and the sensed condition is used to adjust stimulation parameters.

Abstract: An implantable member has a body with a distal end portion and either a fixation portion of the body disposed near the distal end portion or a fixation device attached to a tip of the distal end portion of the body. The fixation portion can include at least one surface feature of the body that facilitates fixation of the implantable member within tissue when implanted.

Abstract: An implantable stimulator(s), small enough to be located near or adjacent to an autonomic nerve(s) innervating urinary and/or gastrointestinal structures, uses a power source/storage device, such as a rechargeable battery. Periodic recharging of such a power source/storage device is accomplished, for example, by inductive coupling with an external appliance. The small stimulator provides a means of stimulating a nerve(s) or other tissue when desired, without the need for external appliances during the stimulation session. When necessary, external appliances are used for the transmission of data to and/or from the stimulator(s) and for the transmission of power, if necessary. In a preferred embodiment, the system is capable of open- and closed-loop operation. In closed-loop operation, at least one implant includes at least one sensor, and the sensed condition is used to adjust stimulation parameters.

Abstract: A lead assembly for a small implantable medical device (a.k.a, microdevice 10) provides means to attach a remote electrode to microdevice, which means inhibit fluid ingress when microdevice is not attached to lead assembly. Microdevices may provide either or both tissue stimulation and sensing. Known microdevices include spaced apart electrodes on the outer surface of the microdevice. Lead assembly includes an insulated lead including a proximal end and a distal end, with at least one conductor therebetween; at least one electrode at the distal end of the lead and electrically connected to the at least one conductor, and a connector attached to the proximal end of the lead and adapted to be removably connectable to microdevice. Connector includes at least one contact to electrically connect at least one device electrode on microdevice to at least one conductor, thereby electrically connecting at least electrode and the at least one electrode at the distal end of lead.

Abstract: An insertion kit for implanting an electrode in a patient can include a handle; an insertion member coupled to the handle at a proximal end of the insertion member and configured and arranged to be inserted into a patient; an alignment member coupled to the handle and disposed over the distal end of the insertion member; and an electrode configured and arranged to be inserted into the patient using the insertion member. In some instances, the insertion kit may also include one or more of a marker that cooperates with the alignment member to mark a position of the electrode on the skin of the patient; a pointer that cooperates with the alignment member to find the marked position on the skin of the patient; and a second electrode and a second insertion member configured and arranged for detachably coupling to the handle in place of the insertion member.

Abstract: A system and method for introducing one or more stimulating drugs and/or applying electrical stimulation to the brain to treat mood and/or anxiety disorders uses an implantable system control unit (SCU), specifically an implantable signal/pulse generator (IPG) or microstimulator with one or more electrodes in the case of electrical stimulation, and an implantable pump with one or more catheters in the case of drug infusion. In cases requiring both electrical and drug stimulation, one or more SCUs are used. Alternatively and preferably, when needed, an SCU provides both electrical stimulation and one or more stimulating drugs. In a preferred embodiment, the system is capable of open- and closed-loop operation. In closed-loop operation, at least one SCU includes a sensor, and the sensed condition is used to adjust stimulation parameters.

Abstract: A neurostimulation kit and a method of treating a patient are provided. The kit comprises a stimulation backing that includes a flat, electrically insulative, body having a pair of opposing first and second planar surfaces, and an electrode affixed to the first surface of the insulative body. The stimulation backing is implanted within a patient and affixed therein to place the electrode into contact with a tissue surface. The kit comprises a neurostimulator including a housing and stimulation circuitry contained within the housing. The neurostimulator is implanted within the patient by affixing the housing to the second surface of the insulative body, such that the stimulation circuitry is electrically coupled to the electrode.

Abstract: Methods and systems of treating a patient with ischemia pain include providing a stimulator, configuring one or more stimulation parameters to treat ischemia pain in a visceral organ, programming the stimulator with the one or more stimulation parameters, generating a stimulus configured to treat ischemia pain with the stimulator in accordance with the one or more stimulation parameters, and applying the stimulus with the stimulator to one or more stimulation sites in accordance with the one or more stimulation parameters.

Abstract: A system and method for introducing one or more stimulating drugs and/or applying electrical stimulation to the brain to treat mood and/or anxiety disorders uses an implantable system control unit (SCU), specifically an implantable signal/pulse generator (IPG) or microstimulator with one or more electrodes in the case of electrical stimulation, and an implantable pump with one or more catheters in the case of drug infusion. In cases requiring both electrical and drug stimulation, one or more SCUs are used. Alternatively and preferably, when needed, an SCU provides both electrical stimulation and one or more stimulating drugs. In a preferred embodiment, the system is capable of open- and closed-loop operation. In closed-loop operation, at least one SCU includes a sensor, and the sensed condition is used to adjust stimulation parameters.

Abstract: Methods of treating obesity and/or type II diabetes include applying at least one stimulus to the pituitary gland of a patient with an implanted stimulator in accordance with one or more stimulation parameters. The at least one stimulus is configured to treat obesity and/or type II diabetes. Systems for treating obesity and/or type II diabetes include a stimulator configured to apply at least one stimulus to the pituitary gland of a patient in accordance with one or more stimulation parameters. The at least one stimulus is configured to treat obesity and/or type II diabetes.

Abstract: A stimulation system is disclosed that may include a stimulator unit coupled to electrode contacts on a cuff. In one embodiment, the cuff may be placed at least partially around a nerve. The stimulation system may include at least two electrode contacts disposed on the cuff such that a distance between the at least two electrode contacts various along a length of the electrode contacts. In another embodiment, a plurality of electrode contacts are disposed on the cuff such that distances between at least one electrode contact within the plurality of electrode contacts and each electrode contact immediately adjacent to the at least one electrode contact are different. The stimulator unit may also be implantable.

Abstract: An implantable device includes a device body and at least one anchoring unit configured and arranged for anchoring the device body in a patient upon implantation. The anchoring unit includes a resorbable material that resorbs into the patient over a period of time after implantation.

Abstract: Methods of treating a medical condition include applying at least one stimulus to a motor cortex within a brain of a patient with an implanted system control unit in accordance with one or more stimulation parameters. Systems for treating a medical condition include a system control unit implanted within the patient that is configured to apply at least one stimulus to a motor cortex within a brain of a patient in accordance with one or more stimulation parameters.

Abstract: A stimulation system is disclosed that may include a stimulator unit coupled to electrode contacts on a cuff. In one embodiment, the cuff may be placed at least partially around a nerve. The stimulation system may include at least two electrode contacts disposed on the cuff such that a distance between the at least two electrode contacts various along a length of the electrode contacts. In another embodiment, a plurality of electrode contacts are disposed on the cuff such that distances between at least one electrode contact within the plurality of electrode contacts and each electrode contact immediately adjacent to the at least one electrode contact are different. The stimulator unit may also be implantable.

Abstract: Methods of using unidirectionally propagating action potentials (UPAPs) for cavernous nerve stimulation and for certain disorders are provided. Stimulators capable of creating such UPAPs include, but are not limited to, miniature implantable stimulators (i.e., microstimulators), possibly with programmably configurable electrodes.