46 results about "Pacemaker system" patented technology

A non-invasive, removable intraoral electrical Stimulator or Pacemaker system and method is described, for electrically-stimulating and re-establishing the tone in the upper pharyngeal dilator muscle, the genioglossus and base-of-tongue muscles, for the treatment of Obstructive Sleep Apnea (OSA) in human adults and young adults. The Stimulator system consists of an intraoral Stimulator device assembly with a rechargeable battery, an external (inductive) Recharger appliance and an external hand-held (inductive) Programmer appliance. The Stimulator device assembly is inserted into the mouth by the OSA patient before sleep time and is removed when awake or during normal activity and placed in the charging cradle of the Recharger appliance for recharging the device battery. The physician uses the hand-held Programmer appliance to determine and set the patient-specific stimulation therapy parameters in the device, at the patient's initial evaluation. The stimulation therapy is delivered either in an open loop configuration without regard to patient's respiration activity, or in a closed loop configuration synchronized to the patient's respiration detected by one or more sensors in the system.

A pacemaker system for a human subject having bilateral vocal cord paralysis includes a sensing electrode for detecting inspiratory activity of a vocalizing muscle of the subject and generating a first signal, and a processor for receiving the first signal from the sensing electrode and generating a second signal. The second signal is substantially synchronous with the first signal. A stimulating electrode receives the second signal from the pulse generator and stimulating a vocalizing nerve of the subject.

An implantable cardiac monitoring device as an A-mode ultrasound probe which is adapted to be positioned in the right ventricle of a heart, and which emits an ultrasound signal which is reflected from one cardiac segment of the left ventricle of the heart, and the ultrasound probe receives the resulting echo signal. The delay between the emission of the ultrasound signal and the reception of the resulting echo is measured, and from this delay a position of the cardiac segment is determined. The position of this cardiac segment, at least one reflecting the signal, is related to cardiac performance, and thus the monitoring device determines, from the detected position of the cardiac segment, the cardiac performance.

A single electrode probe for a cardiac pacemaker system, in particular for a DDD cardiac pacemaker system, has an electrode line with a bifurcated section, at the beginning of which the electrode line divides into two electrode line portions which rejoin at the end of the section to again form one portion, wherein at least one of the portions has at least one electrode for the delivery of electrical energy to adjoining myocardium.

This invention provides pacemaker systems comprising (1) an electronic pacemaker, and (2) a biological pacemaker, wherein the biological pacemaker comprises a cell that functionally expresses a chimeric hyperpolarization-activated, cyclic nucleotide-gated (HCN) ion channel at a level effective to induce pacemaker current in the cell. The invention also provides related biological pacemakers, atrioventricular bridges, methods of making same, and methods of treating a subject afflicted with a cardiac rhythm disorder.

This document provides devices and methods for the treatment of heart conditions. For example, this document provides a percutaneous temporary epicardial pacemaker device and system for treating heart arrhythmia.

A pacemaker system comprising apnea detecting means for measuring parameters about respiratory including at least two parameters of the number of apneas per unit time and the period of time during which an apnea continues and detecting an apnea state of a sleeping patient on the basis of the measured parameters, characterized in that when the measured values of the detection parameters measured by the apnea detecting means increase over reference values at which the pacing rate is changed to a preset and stored SAS treating pacing rate, the pacing rate is changed and the pacing mode is changed to an SAS treating pacing mode. The apnea syndrome of the sleeping patient is detected and treated coping with the bradycardia and various problems accompanying the apnea syndrome. The pacing rate and the pacing rate time can be set suitably for the patient without imposing too heavy a burden on the patient depending on the condition of the patient, and consequently the syndrome of the SAS can be treated efficiently and reliably.

A fully implantable cardiac pacemaker system is provided. The pacemaker system includes a pacemaker having an electrode sub-assembly containing an electrode and a base into which the electrode is embedded. It also includes an implantable package that has electronic components for providing electrical pulses to a patient's heart. The pacemaker also has a power supply and a flexible electrically conductive lead that connects the electronic components to the electrode. In addition to the pacemaker, the pacemaker system includes a removable insertion casing that is physically attached to the base portion of the electrode sub-assembly. Upon insertion of the pacemaker into a patient's heart, the pacemaker is detached from the removable insertion casing and deployed fully in the patient's chest. The pacemaker system has particular use in fetal applications.

A fully implantable cardiac pacemaker system is provided. The pacemaker system includes a pacemaker having an electrode sub-assembly containing an electrode and a base into which the electrode is embedded. It also includes an implantable package that has electronic components for providing electrical pulses to a patient's heart. The pacemaker also has a power supply and a flexible electrically conductive lead that connects the electronic components to the electrode. In addition to the pacemaker, the pacemaker system includes a removable insertion casing that is physically attached to the base portion of the electrode sub-assembly. Upon insertion of the pacemaker into a patient's heart, the pacemaker is detached from the removable insertion casing and deployed fully in the patient's chest. The pacemaker system has particular use in fetal applications.

The invention discloses a controllable wireless cardiac pacemaker system with multi-electrode pacing, which belongs to the field of electrical stimulation medical devices. The wireless pacemaker system has four or more fixed hooks, the pacing electrode is positioned on the anchoring hooks of the implant device, as long as one of the fixation hooks is punctured in the myocardium, it can function asa pacing. The pacemaker system has an electrode 'compensation' function, and when a single electrode is lost, the other electrode is controlled to be used for pacing without performing a second operation. In addition, the pacemaker system employs a chip (e. g., 74 LS148 and the like.) that can control the number of uses of the electrodes remotely according to the actual clinical situation of thepatient, achieve simultaneous stimulation of the four electrodes, or three electrode stimulation, or both electrode stimulation, or any of the electrode stimulation, and the stimulation intensity is adjustable. The system of the invention increases the probability of the electrode targets to contact the myocardium, reduces the risk of perforation during implantation of the pacemaker, reduces the number of re-implantation of the myocardial necrosis patient, prolongs the service life of the implantation device, and the simulation intensity varies according to patients, and it has great referencevalue and application value to the active implantation device.

The invention provides a battery box which comprises a battery module, a box body with a battery cabin, a locking module and a pop-up module, wherein the battery module is used for fixing a battery and comprises a shell, a first electrode reed and a buckling end; a second electrode reed fixed on the box body is arranged in the battery cabin, and two poles of a battery are respectively connected with the first electrode reed and the second electrode reed; the locking module comprises a lock catch, a lock catch spring and a limiting device for limiting the lock catch, the lock catch spring is inserted into the box body through the lock catch, and the buckling end is buckled in the box body through the lock catch; the pop-up module is used for the popping out the buckling end. The invention provides a pacemaker system analyzer and the battery box thereof; the process of the opening the battery box is simple, the battery is conveniently taken down, and the battery module can be popped out while the battery box is opened, so that the battery can be quickly separated from the second electrode reed, and further, quick power-off is realized.

A pacemaker system 100 includes a pacemaker device 160, cardiac leads 120 and 150, guide catheter 110, an ultrasound transmitter 133 and an ultrasound receiver 130. Cardiac lead 150 is implanted in the right atrium (RA) 82 and includes an electrode 152 at its distal end that is actively fixed into location 102 of the right atrium 82. Electrode 152 is used for pacing of the RA. Cardiac lead 120 is implanted in the right ventricle (RV) 84 and includes two separate electrodes. A first electrode 140 is actively fixed into location 101 close to the apex 98 of the right ventricle 84 and is used for pacing, sensing and / or defibrillating of the RV. A second electrode 130 perforates the apex 98 of the right ventricle 84 and is actively fixed into the apex 99 of the left ventricle (LV) 86. Electrode 130 is used for pacing, sensing and / or defibrillating of the LV.

A magnetic pacer system and method for adjusting vehicle speed in an amusement park ride. The system includes a controller and memory that stores speed settings such as upper and lower speed limits for the vehicle in a specific portion of a ride. A magnetic thruster is positioned near the portion of the ride, and a signal or signals are sent from position sensors to the controller. The controller determines the actual velocity of the vehicle as it travels along a direction of travel and acts to compare the determined vehicle velocity with the stored and desired speed settings. The controller then determines a magnetic force to apply to the vehicle including selecting whether the force is along the direction of travel or opposite to provide acceleration or deceleration of the vehicle. The magnetic thruster is selectively operated to generate a magnetic force to act on the vehicle.

A respiration implant system for a patient with impaired breathing includes one or more temperature sensors configured for placement into an inner wall tissue along an airway passage of the patient and configured to measure temperature in the inner wall tissue in order to produce a temperature signal based on the measured temperature. The system further includes a pacing processor configured to receive the temperature signal from the temperature sensor and to generate a respiration pacing signal based on the temperature signal that is synchronized with a breathing cycle of the patient and a stimulating electrode configured to deliver the respiration pacing signal from the pacing processor to respiration neural tissue of the patient to facilitate breathing in the patient. The respiration implant system may be used as a laryngeal pacemaker system.

The invention provides a system for achieving double-ventricle re-synchronization by tracking biological atrioventricular delay (AVD) via single left ventricle hop-by-hop. The system comprises a three-chamber pacemaker system and a single left ventricle hop-by-hop tracking biological AVD working procedure. Before the procedure is started, when ultrasonic cardiogram optimization has not been performed, an optional empirical value of a period (V-R period) where the left ventricle should be prior to the right ventricle is 10ms-40ms. If the V-R period should be obtained via the ultrasonic cardiogram optimization, the system will firstly finish the ultrasonic cardiogram optimization to obtain the V-R period before working. According to the invention, the system can approximately track the biological atrioventricular delay and achieve double-ventricle re-synchronization just via the left ventricle pace-making, and is quite physiological with no need for extending the AVD acquisition AS-VS period; limitations on atrioventricular synchronization by other systems are overcome; the left ventricle electrode is free from power consumption pace-making, so service lifetime of a cell is extended; 50% of cost of heart re-synchronization treatment is reduced; and the system has important significance and application value on limited medical treatment resources.

Systems and methods for heart stimulation in accordance with embodiments of the invention are illustrated. One embodiment includes a heart stimulation system, including a first wirelessly powered, leadless pacemaker, including a wireless power receiver tuned to a first frequency, an energy harvesting circuitry, a stimulation circuitry, and a stimulation electrode, a controller, including a wireless power signal generator, a wireless power transmitter tuned to the frequency, a processor, and a memory containing a stimulation control application, where the stimulation control application directs the processor to generate a power transfer signal using the first wireless power signal generator, and transmit the power transfer signal using the wireless power transmitter, wherein the wirelessly powered, leadless pacemaker receives the power transfer signal using the first wireless power receiver, and when receiving the power transfer signal, the energy harvesting circuitry stores power received via the wireless power receiver in at least one capacitor.

A pacemaker system comprising apnea detecting means for measuring parameters about respiratory including at least two parameters of the number of apneas per unit time and the period of time during which an apnea continues and detecting an apnea state of a sleeping patient on the basis of the measured parameters, characterized in that when the measured values of the detection parameters measured by the apnea detecting means increase over reference values at which the pacing rate is changed to a preset and stored SAS treating pacing rate, the pacing rate is changed and the pacing mode is changed to an SAS treating pacing mode. The apnea syndrome of the sleeping patient is detected and treated coping with the bradycardia and various problems accompanying the apnea syndrome. The pacing rate and the pacing rate time can be set suitably for the patient without imposing too heavy a burden on the patient depending on the condition of the patient, and consequently the syndrome of the SAS can be treated efficiently and reliably.

Systems and methods for pacing cardiac conductive tissue are described. An embodiment of a medical system includes an electrostimulation circuit to generate His-bundle pacing (HBP) pulses to stimulatea His bundle, and a cardiac event detector to detect a His-bundle activity within a time window following an atrial activity. The cardiac event detector may use a cross-chamber blanking, or an adjustable His-bundle sensing threshold, to avoid or reduce over-sensing of far-field atrial activity and inappropriate inhibition of HBP therapy. The electrostimulation circuit may deliver HBP in the presence of the His-bundle activity. The system may further recognize the detected His-bundle activity as either a FFPW or a valid inhibitory event, and deliver or withhold HBP therapy based on the recognition of the His-bundle activity.

The invention provides a lead-free pacemaker and a lead-free pacemaker system. The lead-free pacemaker and the lead-free pacemaker system have the advantages that a shell of a pacemaker body of the lead-free pacemaker is designed to be of a bent pipe structure, accordingly, the lead-free pacemaker can be implanted in locations with narrow spaces in a bent manner and can effectively cling to myocardial tissues or vascular wall tissues which are of curved surface structures, good pace-making or perception effects can be realized, the patient application ranges can be expanded to a great extent,and large quantities of patients can be benefited.

A method and system of adapting heart rate in cardiac tissue based on two types of sensed information is provided. A pulse is transmitted to the cardiac tissue. An activity signal is received. A first interval signal is also received and the pacing rate is adapted based on the first interval signal. A second interval signal is then received and the adapted pacing rate is verified using the second interval signal.

An implantable system including an atrial leadless pacemaker (aLP) and a ventricular leadless pacemaker (vLP), and methods for use therewith, are configured or used to terminate a pacemaker mediated tachycardia (PMT). One of the aLP or the vLP detects a PMT and informs the other one. The aLP initiates a PMT PA interval that is shorter than a PA interval that the aLP would otherwise use for atrial pacing if a PMT was not detected. The vLP initiates a PMT PV interval that is longer than the PMT PA interval. If an intrinsic atrial or ventricular event is detected before PMT PA interval or the PMT PV interval expires, then these intervals will be terminated, otherwise an atrial chamber will be paced if the PMT PA interval expires, and / or a ventricular chamber will be paced if the PMT PV interval expires. This should have the effect of terminating the PMT.

A pacemaker system is configured to sense electrical and mechanical activity of the heart tissue within a mammalian body and to generate a corresponding signal responsive to the sensed cardiac activity. The system includes a flexible electrical generator that contains EKG (ECG) electrodes for measuring electrical activity and ECHO piezoelectric electrodes for measuring mechanical activity of the heart and Doppler blood flow. The generator is embedded in a flexible shield, and is contoured to conform to the anatomy of the intercostal space to be embedded between the ribs of a patient and in the position overlying the heart. The system provides for pacing as well as defibrillation, responsive to the readings of the heart activities. A microprocessor analyzes a cardiac situation, based on the sensor's readings, produces a diagnosis, and generates control signals, such as “pacing pulse” in a life-threatening situation, or “observe” in a non life-threatening situation.

The invention relates to the field of medical instruments, in particular to a PMT inducement detection and prevention method, a storage medium and a pacemaker system and device. The pacemaker mediatedtachycardia is also called PMT, and is a kind of pacemaker-induced tachycardia. The PMT inducement detection and prevention method provided by the application mainly comprises the following steps: terminating suspected PMT, confirming PMT, identifying different PMT inducements, and executing a preset prevention measure based on the different PMT inducements. The application provides a pacemaker system. The system comprises a battery, a power management module, a communication circuit module, a sensing circuit module and a pacing circuit module, and further comprises a PMT inducement detectionand prevention module. The PMT inducement detection and prevention system mainly comprises a rolling intracardiac electrogram (IEGM) electrocardio data acquisition module, a PMT termination and identification module, a PMT inducement identification module and a PMT inducement storage module.

The invention discloses a perception pace-making method of a multi-chamber non-conductor pacemaker system. A multi-chamber non-conductor pacemaker system comprises one or a plurality of pacemakers implanted into a human body, the pacemakers comprise mechanical sensing modules, electrocardiogram perception modules, processing modules, communication modules, pace-making modules, power supply modules, storages and the like. The pacemakers judge cardiac activity conditions and electrocardiogram conditions according to cardiac mechanical events and cardiac electrical events received by the processing modules, so that accurate pace-making is achieved, and cardiac activities are adjusted and controlled. Mechanical sensors perceive the cardiac mechanical events by sensing related myocardial cell torsion of myocardial cell contraction and relaxation and the like. Different pacemakers of the multi-chamber non-conductor pacemaker system are connected trough the perceived cardiac mechanical eventsand / or the cardiac electrical events, so that cooperative working is achieved.