13 results about "Cardiac stimulation" patented technology

The module includes: a conversion stage (110) receiving as input a sampled activity signal (ACTk) representative of the instantaneous activity of the patient and delivering as output a first target value (Xk) by application of a predetermined activity / heart rate function (F(ACT)); a recursive digital low-pass filter (130) calculating over a predetermined time a moving average of the first target value (Xk) delivered by the conversion stage (110) and giving as output a second target value (Zk); and a combiner stage (140) receiving as input the first target value (Xk) and the second target HR value (Zk) delivered by the first digital low-pass filtering stage (130), determining the maximum of the two target values ​​and giving as output the setpoint value (HRk) to control the stimulation frequency to the patient's activity.

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.

Esophageal intubation assemblies, esophageal cardiac stimulation and gastric decompression assemblies, and methods for using and making the same are provided.

The hybrid stimulation system is an electrical stimulation system serves to delivered an electrical stimulation impulse to the heart (human or animal heart) , using a combination of internal (intravascular) and external (body surface) electrodes, the hybrid electrical stimulation system can be used for pacing of the heart during slow heart beat (bradycardia), or shocking the heart during fast heart beat (Tachycardia) , or to terminate fast abnormal heart beat (tachy-arrhythmia) by means of override pacing (Anti-tachycardia pacing). This hybrid system can be used and introduced into the body without the need for imaging guidance such as fluoroscopy or echocardiography to insert the internal component, and does not require direct contact between the internal pacing wire and the myocardium (internal heart surface).

The invention relates to an implantable medical stimulation device (1) for stimulating an atrium (RA) of a patient's heart (H), comprising a generator device (12) with a processing circuitry (120) configured to perform a rate-adaptive cardiac stimulation in which a paced heart rate is adjusted based on a load state of the patient. The processing circuitry (120) is further configured to obtain a momentary impedance curve (ΔZ1) indicative of a measured impedance during a cardiac cycle, to compare said momentary impedance curve (ΔZ1) to a stored reference curve (ΔZrefRest) indicative of a reference impedance curve and to perform an adaption of the paced heart rate based on the comparison of the momentary impedance curve (ΔZ1) to the stored reference curve (ΔZrefRest). The processing circuitry (120) is furthermore configured to obtain said momentary impedance curve (ΔZ1) using at least one ventricular electrode pole (102).

The invention relates to a screwing stylet for improving torque transfer from a physician's hand to a lead tip (e.g., helix) of a lead device. A lead tip is provided to facilitate handling and a screwdriver functionality of the screwing stylet is provided to improve torque transfer to the lead tip of the lead device for better control of a puncturing process. The screwing stylet can be engaged directly with the tip of the lead device, thereby allowing a direct and efficient torque transfer to the fixed helix at the tip.

The invention relates to a method for determining at least one monitoring parameter for monitoring cardiac stimulation during a magnetic resonance imaging (MRI) scan of a patient, a MRI scanner, and a computer program. According to the method, the patient is positioned in the MRI scanner. The patient's cardiac position relative to the MRI scanner is determined. The at least one monitoring parameter is determined based on a monitoring model as a function of the patient's cardiac position.

The present invention essentially consists of a coronary diagnostic assembly with a wire guide useful for both measuring pressure within a heart chamber for fractional flow reserve (FFR) and for performing cardiac pacing during pseudo FFR measurements, by means of a pressure sensor integrated within the wire guide.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes an inflatable member and at least one electrode for focal ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.

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

This invention relates to an apparatus and a method for optimizing cardiac stimulation instants of a patient, wherein a signal processing chain and a set of transformations are applied to provide robust, denoised and coherent electrogram (EGM) cycles An orthogonal (uncorrelated) transformation of observed EGMs provides an improved combination of available EGMs in terms of information content, maximizes sensitivity to changes in cardiac therapy configurations and is invariant to anatomy and lead positions of each patient. Furthermore, an original feature extraction is applied after orthogonal transformation of the EGMs and allows for calculation of a set of markers that can be better interpreted and used for optimizing the stimulation instants for a given patient.

A method for ascertaining at least one monitoring parameter for monitoring cardiac stimulation during a magnetic resonance measurement of a patient, a magnetic resonance apparatus, and a computer program product are provided. According to the method, the patient is positioned in the magnetic resonance apparatus. The cardiac position of the patient relative to the magnetic resonance apparatus is ascertained. The at least one monitoring parameter is ascertained based on a monitoring model as a function of the cardiac position of the patient.

An implantable medical stimulation device (1) for performing an anti-bradycardia pacing in an atrium (RA) of a patient's heart (H) comprises a generator device (12) comprising processing circuitry (120) for processing cardiac sense signals and generating cardiac stimulation signals and a housing (121), and an electrode arrangement for sensing cardiac signals and outputting cardiac stimulation signals. The electrode arrangement comprises at least one atrial electrode pole (102, 103). The processing circuitry (120) is configured to perform a rate-adaptive cardiac stimulation in which a paced heart rate is adjusted based on a load state of the patient, wherein the processing circuitry (120) is configured to obtain a momentary impedance curve (ΔZ1), to compare said momentary impedance curve (ΔZ1) to a stored reference curve (ΔZrefRest) and to perform an adaption of the paced heart rate based on the comparison of the momentary impedance curve (ΔZ1) to the stored reference curve (ΔZrefRest). The processing circuitry (120) is configured to obtain said momentary impedance curve (ΔZ1) by conducting a unipolar impedance measurement between the at least one atrial electrode pole (102) and the housing (121).