223results about "Subcutaneous electrodes" patented technology

An implantable lead configured to be implanted in an anterior mediastinum of a patient. The implantable lead includes a generator interface and a lead body coupled to the generator interface. The generator interface is configured to couple the implantable lead to a generator of an implantable treatment device. The lead body includes a sternal portion configured to be positioned in the anterior mediastinum to engage a posterior portion of a sternum of the patient, and a heart wall portion configured to be positioned in the anterior mediastinum to engage a heart wall of a heart of the patient. At least one of the sternal portion or the heart wall portion is configured to deliver treatment energy to the heart of the patient.

A medical device system includes an implantable medical lead including a lead body defining a proximal end and a distal portion, and at least a portion of the distal portion of the lead body defining a contoured configuration. The medical device system also includes an introducer tool defining a lumen configured to receive the distal portion, and the introducer tool configured to limit rotation of the distal portion within the lumen.

A cardiac pacing system that includes an implantable pulse generator and electrical leads that include a lead body portion having a distal end and a proximal end, a connector configured to electrically connect the proximal end of the lead body to the pulse generator, and at least one electrode disposed at the distal end of the lead body for delivering electrical stimulation to a patient's heart, wherein the distal end of the lead body is configured to terminate within the mediastinum of the thoracic cavity of the patient, proximate to the heart.

The present application relates to an apparatus (100) for stimulating a peripheral nerve. The apparatus comprises: an implantable electrode assembly (102), which can be implanted in the body of a patient, and is configured to apply a stimulation signal to a nerve. The implantable electrode assembly (102) comprises: a stimulation electrode (102a), which is fixed to a predetermined position of the body of the patient and is adjacent to a nerve therein, and is configured to operably apply a stimulation signal to the nerve; and an electrode circuit (102b), which is coupled to the stimulation electrode (102a), and is configured to receive stimulation energy in the form of an electromagnetic field, convert the stimulation energy into the stimulation signal and provide the stimulation signal to the stimulation electrode (102a), wherein the stimulation energy is from the outside of the implantable electrode assembly (102). The apparatus further comprises: a stimulation energy generator (104), which can be worn outside the body of the patient, so as to provide stimulation energy to the implantable electrode assembly (102) by means of electromagnetic field coupling. The stimulation energy generator (104) comprises: a generator circuit (658), which is used for generating stimulation energy in the form of an electromagnetic field; and a power source (660), which is coupled to the generator circuit (658), and is configured to supply power to the generator circuit (658).

Mismatching the curvature of the electrode lead portion may produce unexpected and / or unpredictable resistance to the underlying tissue. In addition, repeated movement of the relevant area of ​​the body may even exacerbate the mismatch. Implants for electrical stimulation require low-resistance conductors for the stimulation electrodes, return electrodes, and interconnects, which typically use metal for the wires and contacts. These conductors reduce flexibility, and the problem becomes more severe as the number of electrodes increases due to the desire to provide a higher degree of customization. An implantable stimulation device is provided with an elongated substrate (300), one or more interconnects (250, 450), a flexible electrode (200, 400) having two parts separated by one or more bend interruptions (500, 371, 372, 373, 374, 375), wherein the first part and the second part are directly electrically connected via the one or more interconnects (250, 450). The electrode parts on opposite sides of the bend point are electrically connected, thereby allowing optimization of mechanical bending and electrical connection respectively.

Systems and methods are described and illustrated for percutaneously implanting a stimulation lead for treating sleep-related disordered breathing.

Methods and implantable medical devices are provided that include a lead configured to be operably coupled to a pulse generator and subcutaneously implanted within a patient. The lead includes an electrode configured to receive electrical power from the pulse generator and to deliver high-voltage shocks for defibrillation therapy. The electrode has an oblong cross-sectional shape with a major dimension that is at least 10 French (F).

A defibrillation generator for an implantable defibrillation system comprises a housing, a connector block for connecting an electrode lead assembly to be non-transvenously implanted in a patient, and control device for controlling the operation of the defibrillation generator. The connector block has two connectors, to each of which an electrode lead of the electrode lead assembly, said electrode leads having at least one defibrillation electrode pole, is connectable, wherein the control device is configurable to assume a first operating state if an electrode lead is connected to just one of the two connectors, or a second operating state if electrode leads are connected to each of the two connectors.

Alternating electric fields (e.g., tumor treating fields, a.k.a. TTFields) may be applied to a target region in a subject's body via sheets of graphite that are implanted in the subject's body. One or more ports configured for affixation to the subject's body include or connect to one or more mating electrical connectors. Electrical conductors are positioned to route electrical signals between the electrical connector(s) and the sheets of graphite. The alternating electric fields are applied to the target region by applying (via the ports) an alternating voltage between two sheets of graphite that are positioned on opposite sides of the target region.

An electrical stimulation system includes a stimulation device and a container. The stimulation device may be sealed within the container. A port in the container allows the stimulation device to couple with the lead. The stimulation device may be used before, during, and after a subcutaneous surgical procedure to apply electrical stimulation for nerve regeneration.

Disclosed herein is a pulse generator device for trigeminal nerve stimulation. In one embodiment, the pulse generator device comprises a processor(s) configured to: produce pulses delivered to an electrode assembly for a therapy session(s) for a patient, log data from the therapy session(s) (where the data comprises impedance of the electrode assembly connected to the pulse generator and current amplitude of the pulses), determine an average current amplitude from the data, determine an average therapy impedance from the data, determine a charge capacity of a battery of the pulse generator prior to beginning a subsequent therapy session, determine whether the charge capacity of the battery is sufficient to complete the subsequent therapy session for a designated duration of time by using the average current amplitude and the average therapy impedance. Further the pulse generator device comprises a display configured to display a screen comprising a graphical user interface (GUI).

Neuromodulation devices and associated systems and methods are disclosed herein. Various embodiments of the present technology relate to devices, systems, and methods for delivering electrical energy to a hypoglossal nerve of a patient. According to some embodiments, the present technology includes an implantable neuromodulation device comprising an electronics package, a branched lead body, and an extension portion between the electronics package and lead body. The lead body can comprise a first arm with first conductive elements and a second arm with second conductive elements. The lead body can be configured to be positioned between a patient's genioglossus and geniohyoid muscles such that the first arm and first conductive elements are positioned proximate one of the patient's hypoglossal nerves and the second arm and second conductive elements are positioned proximate a contralateral one of the patient's hypoglossal nerves.

To provide improved systems and methods for sensing and stimulation.SOLUTION: A system for stimulating body tissue may include a stimulation lead, sensors, and a control unit. The stimulation lead may include one or more energy sources. The control unit may include a processor and non-transitory computer readable medium, and an interface (e.g., touch screen interface) for receiving user inputs and communicating information to the user. The sensors may be configured to provide impedance measurements to the control unit. The control unit may calculate lung gas distributions and / or generate an image modeling lung gas distributions. Stimulation delivered by the stimulation may be adjusted based on the impedance measurements.SELECTED DRAWING: Figure 2

Neuromodulation devices and associated systems and methods are disclosed herein. Various embodiments of the present technology relate to devices, systems, and methods for delivering electrical energy to a hypoglossal nerve of a patient. In accordance with some embodiments, the present technology includes an implantable neuromodulation device including an electronic package, a branched lead body, and an extension between the electronic package and the lead body. The wire body can include a first arm having a first conductive element and a second arm having a second conductive element. The lead body can be configured to be positioned between a genioglossus muscle and a genioglossus muscle of a patient such that the first arm and the first conductive element are positioned proximate one of the hypoglossal nerves of the patient and the second arm and the second conductive element are positioned proximate one of the contralateral hypoglossal nerves of the patient.

A system may include one implantable pulse generator and at least one implantable lead. The pulse generator may include a processor, a driving system for driving electrodes, a communication circuit, and a housing configured to be subcutaneously implanted. The lead may be configured to extend from the pulse generator to at least one neural target on a left side of a head and a neural target on a right side of the head. The lead may include at least two electrode sets, each including at least two electrodes. The lead be configured to be used to subcutaneously place the at least two electrode sets near the at least two neural targets, respectively, and electrically connect the pulse generator to each of the at least two electrodes sets to enable the driving system to drive the at least two electrode sets to stimulate the at least two neural targets.

In some examples, a tool for, e.g., creating a sub-sternal tunnel in a patient or other use, is described. The tool may include a handle and a tunneling shaft coupled to the handle. The tunneling shaft extends from a proximal end to a distal end, and at least a portion of the tunneling shaft extends in a curved orientation between the first end to the distal end. The distal end of the tunneling shaft includes a cutting tool having a sharp edge. The cutting tool is moveable from a recessed position in which the sharp edge of the cutting tool is recessed into the distal end of the tunneling shaft to a deployed position in which the sharp edge of the cutting tool extends beyond the distal end of the tunneling shaft in the deployed position, e.g., to cut pericardium, scar tissue, and / or connective tissue with the sharp edge.

A medical device is provided that includes a flexible electrode array having a bend radius of about 2 mm or less and a fluidic component, the fluidic component being fluidically actuatable to cause the fluidic component to change configuration, wherein the fluidic component and the flexible electrode array are configured such that a change in configuration of the fluidic component causes a change in configuration of the flexible electrode array.

An implantable medical device performs a method that includes detecting a cardiac event interval that is greater than a P-wave oversensing threshold interval. In response to detecting the cardiac event interval greater than the P-wave oversensing threshold interval, the device determines the amplitude of the sensed cardiac signal and withholds restarting a pacing interval in response to the amplitude satisfying P-wave oversensing criteria. A pacing pulse may be generated in response to the pacing interval expiring without sensing an intrinsic cardiac electrical event that is not detected as a P-wave oversensing event.

An example implantable medical electrical lead includes a lead body defining a proximal portion and a distal portion, wherein at least a part of the distal portion of the lead body defines a three-dimensional undulating configuration; a. proximal end of the distal portion disposed adjacent to the three-dimensional undulating configuration; a first defibrillation electrode and a second defibrillation electrode disposed along the three-dimensional undulating configuration spaced apart from one another; and a pacing electrode disposed between the first defibrillation electrode and the second defibrillation electrode. The first defibrillation electrode is disposed between the proximal end and the pacing electrode. A first portion of tire first defibrillation electrode, a first portion of the second defibrillation electrode, and the pacing electrode are disposed along a plane. A second portion of the first defibrillation electrode adjacent to the pacing electrode arcs orthogonally to the plane.

A pacemaker has a housing and a therapy delivery circuit enclosed by the housing for generating pacing pulses for delivery to a patient's heart. An electrically insulative distal member is coupled directly to the housing and at least one non-tissue piercing cathode electrode is coupled directly to the insulative distal member. A tissue piercing electrode extends away from the housing.

Systems and methods involving implants positioned within implant pockets through minimally invasive entrance incisions, along with related neurostimulatory implants. In some implementations, implants may be folded, rolled, or otherwise compressed to fit within subcutaneous implant pockets, after which they may be decompressed to fit within an implant pocket having one or more dimensions substantially larger than the entrance incision. Such implants may be used for a variety of purposes, including generating electrical energy for various other implants, including neurostimulatory implants located throughout the body.

A medical device is configured to sense an electrical signal and determine that signal to noise criteria are met based on electrical signal segments stored in response to sensed electrophysiological events. The medical device is configured to determine an increased gain signal segment from one of the stored electrical signal segments in response to determining that the signal to noise criteria are met. The medical device determines a noise metric from the increased gain signal segment. The stored electrical signal segment associated with the increased gain signal segment may be classified as a noise segment in response to the noise metric meeting noise detection criteria.

In some examples, a tool for, e.g., creating a sub-sternal tunnel in a patient or other use, is described. The tool may include a handle and a tunneling shaft coupled to the handle. The tunneling shaft extends from a proximal end to a distal end, and at least a portion of the tunneling shaft extends in a curved orientation between the first end to the distal end. The distal end of the tunneling shaft includes a cutting tool having a sharp edge. The cutting tool is moveable from a recessed position in which the sharp edge of the cutting tool is recessed into the distal end of the tunneling shaft to a deployed position in which the sharp edge of the cutting tool extends beyond the distal end of the tunneling shaft in the deployed position, e.g., to cut pericardium, scar tissue, and / or connective tissue with the sharp edge.

The present invention provides a method to reduce pain using electrical stimulation of peripheral nerves in or near the spine. This approach involves an electrical stimulation device including at least one electrode adapted for insertion within a human body and at least one pulse generator operatively coupled with the at least one electrode, wherein the pulse generator delivers electrical stimulation activating at least one peripheral nerve in or near the spine, such as the dorsal rami and its distal branches (e.g., the medial branch nerves, cluneal nerves), the ventral rami and its distal branches (e.g., sacral nerves, gluteal nerves), and those accessed via the paravertebral space (e.g., peripheral spinal nerves), to produce pain relief.

A medical device system includes an implantable medical lead including a lead body defining a proximal end and a distal portion, and at least a part of the distal portion of the lead body defines an undulating configuration. The medical device system also includes an introducer tool defining a lumen configured to receive the distal portion, and the introducer tool is configured to limit rotation of the distal portion within the lumen.

According to aspects disclosed herein, an infusion lead assembly may include a housing including a needle receptacle, a housing lumen, a pin receptacle, and a housing conductive trace; a connector including an connector needle, an internal lumen, a metal pin, and a connector conductive trace, and an infusion lead body including an infusion lumen, an exit port, an internal wire, and a distal electrode. The infusion lead assembly may form an electrical path to transmit electrical signals across the connector conductive trace, the metal pin, the housing conductive trace, the internal wire, and the distal electrode. The infusion lead assembly may form a fluid path to transmit fluid across the internal lumen, the connector needle, the infusion lumen, and the exit port.

A subcutaneously implantable device includes a housing, a clip attached to the housing that is configured to anchor the device to a muscle, a bone, and / or a first tissue, and circuitry in the housing that is configured to provide monitoring, therapeutic, and / or diagnostic capabilities with respect to an organ, a nerve, the first tissue, and / or a second tissue. The circuitry includes a first power source, and a transceiver. A first antenna on the device is in electrical communication with the first power source. The first antenna is configured to be subcutaneously positioned in a patient. A second antenna on the device is in electrical communication with the transceiver. The second antenna is configured to be subcutaneously positioned in the patient.

The invention relates to a method for the treatment of cancer or adjuvating the treatment of cancer by exploiting the bidirectional tumor-nerve communication as novel pathway to induce an anticancer activity towards epithelial cancer cells using bioelectronic neuromodulation aimed at influencing the TME status.

We provide implantable medical devices, particularly subcutaneous devices. [Solution] The device, which can be implanted subcutaneously, comprises a housing, a clip attached to the upper surface of the housing, an electrode, and a circuit within the housing that is electrically in communication with the electrode. The clip includes an upper part, the upper part of the clip is configured to be pressed down onto the xiphoid process and / or the sternum in order to fix the device to the xiphoid process and / or the sternum, with the xiphoid process and / or the sternum between the upper part of the clip and the housing.

This disclosure describes implantable medical leads and medical device systems utilizing the leads. In some examples, an implantable medical lead comprises a first defibrillation electrode and a second defibrillation electrode, the first and second defibrillation electrodes configured to deliver anti-tachyarrhythmia shocks, and a pace electrode disposed between the first defibrillation electrode and the second defibrillation electrode, the pace electrode configured to deliver a pacing pulse that generates an electric field proximate to the pace electrode. The implantable medical lead further comprises a shield disposed between the first defibrillation electrode and the second defibrillation electrode and over a portion of an outer surface of the pace electrode, wherein the shield is configured to impede the electric field in a direction from the pace electrode away from a heart.