240results about "Epicardial electrodes" patented technology

A transient closed-loop system for cardiac pacing and / or defibrillator therapy for a subject includes a bioresorbable module configured to at least partially attach to an epicardial interface of the subject's heart for the cardiac pacing; at least one skin-interfaced module configured to attach to an outer surface of the subject's skin, wherein the bioresorbable module is in wireless communication with the at least one skin-interfaced module; and a control module in wireless communication with the at least one skin-interfaced module.

The present invention provides a medical device and a medical device control system. The medical device comprises a main casing body, an electrical assembly, a connecting assembly and a patch assembly, the electrical assembly and the connecting assembly being arranged in the main casing body, the main casing body being provided with a first through hole through which an electrode wire penetrates, the connecting assembly being configured to electrically connect the electrical assembly and the electrode wire, and the patch assembly being configured to fix at least one of the main casing body and the electrode wire to a target position. The medical device provided by the present invention is portable and compact, is more convenient to wear by wearers, and is not liable to cause infection, thus helping to rehabilitation of wearers.

The invention relates to the use of an electronic element (E) with at least one processor—and memory function (27b), for use as an arithmetic element (6) and / or computer element (6) and / or device element (2a) and / or component element (2a), the electronic element comprising an identification—(1c) and / or authentication function (1c) of a user in a digital network (12) by means of a computer-assisted, at least partly automated and / or autonomously ordered encrypted method (14e), and / or comprising a computer-assisted, at least partly automated and / or autonomously ordered control function (1b), wherein the electronic element (E) consists of at least one hardware element (27) and / or software (26).

The invention relates to a heart valve regurgitation drum and optional closure disk and / or tubular stent to manage and provide levels of intentional regurgitation within an orthogonally delivered transcatheter prosthetic heart valve having a first inner flow control component / valve, a second inner regurgitation control component, and an outer annular support frame having compressible wire cells that facilitate folding flat along the z-axis and compressing the valve vertically along the y-axis, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrially to the mitral valve, the valve having a height of about 5-60 mm and a diameter of about 25-80 mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.

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.

A medical device configured to deliver a cardiac pacing pulse having a pacing pulse amplitude for delivery to an electrode terminal of the medical device is provided. In some examples, the medical device is configured to pull a latch current during a first portion of the cardiac pacing pulse by an internal adjustable load of the medical device coupled to a low side of a high side switch of a high voltage output circuit of the medical device to maintain the high side switch in an on state. The medical device may be configured to pull a holding current during a second portion of the cardiac pacing pulse to hold the high side switch in an on state. The holding current may be less than the latch current.

The present invention is related to an extracardiac temporary pacemaker designed for cardiac pacing, particularly for high-grade atrioventricular block and prolonged sinus pauses. The device integrates a pacemaker unit with battery within a transcutaneous patch, featuring thin, needle-like electrodes that penetrate the intercostal muscles to reach the epicardial surface of the heart. The design allows for rapid, significantly reducing the risk of complications associated with traditional intravascular pacemakers and providing a quick, safe, and more efficient solution for temporary cardiac pacing.

An implantable lead for use with an implantable medical device (IMD) includes a tubular lead body having a proximal portion including a proximal end, a distal portion including a distal end opposite the proximal end, and an intermediate portion between the proximal portion and the distal portion. A helical electrode extends distally from the distal end of the tubular lead body. At least one atrial electrode is disposed in the intermediate portion of the tubular lead body. At least one electrical conductor extends through the tubular lead body and is mechanically and electrically coupled to the helical electrode and the at least one atrial electrode. The intermediate portion may have a pre-formed bend configured to urge the at least one atrial electrode against a surface of the right atrium when the lead is implanted. A distal pre-formed bend located in the distal portion of the tubular lead body may be configured to bias a plurality of pacing / sensing electrodes towards a surface of a right ventricle. A distal pre-formed bend located in the distal portion of the tubular lead body may be configured to bias the helical electrode and at least one pacing / sensing against a surface of a right ventricle.

An introductory lead system can include a first implantable lead having a first electrode and a second implantable lead having a second electrode guided to an implant site by the first implantable lead. The second electrode can be implanted in a patient's heart at the same implant site as the first electrode or at a second implant site. The introductory lead system can be delivered to one or more implant sites using various methods, including at the Koch triangle for ventricular free wall to atrium (VfA) therapy, at the right ventricular septal wall for dual bundle branch pacing, or in the coronary vasculature for left-sided sensing and pacing.

A system for characterization of an organic medium surrounding an electrode, comprising: two or more electrodes, wherein at least one electrode of the two or more electrodes is configured to be insertable in tissue; and an analysis unit connectable to the two or more electrodes and configured to apply a measurement signal to the two or more electrodes, wherein the analysis unit is further configured to determine an impedance between the two or more electrodes based on the measurement signal and characterize the organic medium surrounding the at least one electrode based on an amplitude and / or phase of the impedance or real part and / or imaginary part of the impedance.

Method for recovering and stabilizing normal heart rate of patients suffering in or being inclined to having atrial fibrillation, comprising the step of sensing primary electrical pulses generated in the right atrium (1), of generating artificial electrical stimulation pulses coordinated with the sensed pulses and stimulating therewith the portion of the left atrium (9) which is remote from the right atrium (1), whereby increasing the areas of the heart muscles that can be reached during a simulation pulse within a predetermined period of time.

The present invention relates to a fixation tool for clamping and rotating a lead terminal pin of a medical implantable cardiac lead. The fixation tool comprises a handle portion and a jaw portion, wherein opposing inner surfaces of a pair of jaws of the jaw portion are shaped to form a cavity system between the pair of jaws, the cavity system comprising a first cavity located proximal to an opening at the distal end of the jaw portion and having a first width between the opposing inner surfaces and being shaped to clamp a first lead terminal pin of a first diameter, and a second cavity located proximal to the first cavity and having a second width between the opposing inner surfaces, smaller than the first width and adapted to clamp, together with the first cavity, a second lead terminal pin of a second diameter larger than the first diameter.

The present invention provides an electrode wiring connecting apparatus and a temporary pacemaker. The connecting apparatus comprises an electrically conductive block and an insulating bushing; the connecting apparatus is provided with a penetrating channel extending along an axial direction of the connecting apparatus; and the insulating bushing comprises a first sleeve body and a second sleeve body, sleeved on at least a portion of an outer side surface of the first sleeve body. The connecting apparatus further comprises a switching structure, the switching structure comprising a through hole, a trigger body, and a mating body; the through hole is formed in the first sleeve body and is in communication with the penetrating channel, and the trigger body is partially disposed in the through hole, and can move along a direction towards or away from the axis of the penetrating channel, so as to cause the switching structure to switch between a first state and a second state; the mating body is disposed between the first sleeve body and the second sleeve body, and comprises an electrically conductive elastic piece and an electrically conductive engagement piece, the electrically conductive elastic piece being located at the through hole and making contact with the trigger body; and at least a portion of the trigger body of the switching structure is an electrically conductive trigger body. The connecting apparatus can adapt to different electrode wiring, so that the application range of a temporary pacemaker provided with the connecting device is wide.

The invention relates to a device for assisting in the handling and implantation of at least one electrode support(s) for a cardiac device, in particular a cardiac pacing device, said at least one electrode support(s) comprising a distal end and a proximal end, the proximal end comprising at least one connector configured to be in electrical connection with at least one portion of the distal end, characterized in that said device comprises: - a body, preferably one-piece, configured to cover at least one portion of said at least one connector, - at least one receiving portion for a means of temporary electrical connection, such as a crocodile clip, said at least one receiving portion being electrically conductive, - at least one connection element in electrical connection with said at least one receiving portion, said at least one connection element being in controlled tangential contact with said at least one connector.The invention also relates to the use of this device for the transfer of electrical signals into or from a cardiac stimulation device electrode, as well as a method for assembling this device.

The present invention relates to an improvement in the technical field of electromedical electrode assemblies. As an improvement, an electromedical electrode assembly (1) is proposed, which comprises at least one implantable cardioversion electrode (2) consisting of an electrically conductive surface formation (3) that is flexible, flat in the undeformed use position, and configured for surface contact with target tissue.

An implantable medical device (1) for implantation into a patient comprises a body (100, 150) having a distal end (101, 151) and an electrode device (14) for at least one of emitting an electrical stimulation signal and sensing an electrical sense signal, said electrode device (14) being arranged at said distal end (101, 151) of the body (100, 150) and comprising a helix element (142) to be screwed into tissue. A blade section (16) is configured to cut into tissue when said helix element (142) is screwed into tissue.

To provide a leadless pacemaker device 1 to provide an intra-cardiac pacing.SOLUTION: The leadless pacemaker device 1 includes processing circuitry 15 configured to generate ventricular pacing signals for stimulating ventricular activity at a ventricular pacing rate, and a sensor configuration configured to receive a sense signal over a multiplicity of heart cycles. The processing circuitry 15 is configured to derive a combined signal portion Scomb from signal portions S of the sense signal relating to the multiplicity of heart cycles and to analyze the combined signal portion Scomb for obtaining information relating to an atrial event As. Thus, the leadless pacemaker device allows, in particular, a reliable detection of signals relating to an atrial activity and the use of such signals for controlling a ventricular pacing rate for ventricular pacing. The processing circuitry 15 is configured to sum a predefined number of signal portions S relating to different heart cycles to obtain the combined signal portion Scomb.SELECTED DRAWING: Figure 3

A device for use during cardiothoracic surgery around the heart of a patient. The device includes an angled drainage tube including a first portion having a plurality of drainage orifices and a second portion which is angled relative to the first portion. A flexible drainage tube extends from the angled tube and is in fluid communication therewith. A pair of pacing electrodes are disposed on a single aspect of the first portion of the angled drainage tube. The pacing electrodes are adapted to be in contact with the heart muscle for intrinsic rhythm sensing and pacing capability thereof. At least one electrical wire is connected to the pacing electrodes and extends along a portion of the angled drainage tube. The at least one electrical wire is connectable to a pacing box via a cable for powering and controlling the pacing electrodes.

In some examples, a tether head assembly of a delivery system includes an inner retainer and an outer retainer defining an aperture. A tether head assembly of a delivery system includes an inner retainer and an outer retainer defining an aperture including a receptacle configured to receive an attachment member of a medical device, a passageway, and a recess. The inner retainer is movable within the recess between a second position in which the passageway is sized to receive the attachment member and a first position in which the passageway is sized to prevent passage of the attachment member. A tether handle assembly defines a channel, a force transmitter within the channel, a slidable member partially received within a first end of the channel, and a button partially received within a second end of the channel.

The invention relates to an access and occluder device, and in particular a heart valve regurgitation drum and optional closure disk and / or tubular stent to manage and provide levels of intentional regurgitation within a transcatheter heart valve replacement, and in particular, an orthogonally delivered transcatheter prosthetic heart valve having a first inner flow control component / valve, a second inner regurgitation control component, and an outer annular support frame having compressible wire cells that facilitate folding flat along the z-axis and compressing the valve vertically along the y-axis, or orthogonally to the central axis of the flow control component, allowing a very large diameter valve to be delivered and deployed to the tricuspid valve from the inferior vena cava or superior vena cava, or trans-atrrally to the mitral valve, the valve having a height of about 5-60mm and a diameter of about 25-80mm, without requiring an oversized diameter catheter and without requiring delivery and deployment from a catheter at an acute angle of approach.

A process of treatment of internal organ oedema is using an electric current delivering electrode system comprising electrodes to be positioned at two places on the outer surface of the internal organ and / or in a liquid carrying vessel of the internal organ and delivering electric current to induce electro-osmosis between the electrodes. An electrode assembly system for this treatment by electro-osmosis includes, in addition to the two electrodes, a control unit adapted to control the current flow between the two electrodes.

Disclosed herein is a delivery catheter for implanting a leadless biostimulator. The delivery catheter includes a shaft and a tubular body having a lumen and an atraumatic end. The atraumatic end includes at least one of a braided, woven or mesh construction configured to facilitate the atraumatic end changing diameter. When a distal portion of the shaft is coupled to a proximal region of the leadless biostimulator, at least one of distally displacing the tubular body relative to the shaft or proximally displacing the shaft relative to the tubular body causes the leadless biostimulator to be received in the volume of the atraumatic end and the atraumatic end to encompass the leadless biostimulator. Conversely, at least one of proximally displacing the tubular body relative to the shaft or distally displacing the shaft relative to the tubular body causes the leadless biostimulator to exit the volume of the atraumatic end.

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.

In some examples, a tether assembly of a delivery system includes an inner retainer and an outer retainer defining an aperture. A tethered assembly of a delivery system includes an inner retainer and an outer retainer defining an aperture including a container configured to receive an attachment member of a medical device, a passage, and a groove. The inner retainer is movable within the recess between a second position in which the passage is dimensioned to receive the attachment member and a first position in which the passage is dimensioned to prevent passage of the attachment member. The tether handle assembly defines a channel, a force transmitter within the channel, a slidable member partially received within a first end of the channel, and a button partially received within a second end of the channel.

A system and method are provided for managing atrial-ventricular (AV) delay adjustments. An AV interval is measured that corresponds to an interval between an atrial paced (Ap) event or an atrial sensed (As) event and a sensed ventricular (Vs) event. A candidate AV delay is set based on the AV interval and a bundle branch adjustment (BBA) value. A QRS characteristic of interest (COI) is measured while utilizing the candidate AV delay in connection with delivering a pacing therapy. The BBA value is adjusted and the candidate AV delay is reset based on the BBA value as adjusted. A collection of QRS COIs and corresponding candidate AV delays are obtained and one of the candidate AV delays is selected as a BBA AV delay. The pacing therapy is managed, based on the BBA AV delay.

A pacemaker device (400) including a pacemaker portion (402) and an integrated connector (2904). The pacemaker device (400) includes a housing assembly (3316, 4300) defining a plurality of housings (3302, 3304, 4302, 4304, 4306, 4308) for containing pacing electronics, battery material and a connector (2904, 4904). The connector (2904, 4904) is enclosed within the housing (3304, 4304, 4308) and is configured to receive a lead (3202) which is electrically connectable with the pacing electronics. The pacemaker device (400) may include a leadless pacemaker (102) inserted in the housing assembly (3316) configured to convert the leadless pacemaker (102) into a leaded configuration. The leadless pacemaker (102) may be removably attached from the pacemaker device (400) and replaced with another leadless pacemaker (102).

A fastening system (1) for an electrostimulation generator (2), having a generator and electrodes, comprising a casing (4) for housing the generator (2), which has a first and a second opening (7.1, 7.2) of the same kind, provided on opposite sides of the casing; means for connecting the electrodes (5) to the casing (4) in the first or second opening (7.1, 7.2), said means being formed by a first connector (13) for the passage of the electrodes and having a hermetic valve (14) inside the first connector (13); a closing element (10) provided at the opening of the casing (4) and opposite the opening having the means for connecting the electrodes (5); means (6) for fixing the electrodes (5) to the skin; and means for fixing the casing (4) to the body of the patient (3).

An implantable medical device (IMD) including a housing having an outer surface and extending between a first housing end and a second housing end. The IMD includes an electrode coupled to the housing and positioned at or adjacent to the first housing end, and the electrode has an electrode surface. The IMD includes a surface area on the electrode surface or adjacent to the electrode. The surface area includes micropores and channels interconnecting the micropores.

The present disclosure relates to optoelectronic devices and methods for optical epicardial pacing and endoscopic delivery devices and methods for translational photostimulation.