1646results about "Heart stimulators" patented technology

A blood pump system includes a catheter, a pump housing disposed distal of a distal end of the catheter, a rotor positioned at least partially in the pump housing, a controller, and an electrode coupled a distal region of the blood pump. The electrode can be used to sense electrocardiogram (EKG) signals and transmit the signals to a controller of the blood pump. The operation of the blood pump can be adjusted based on the EKG signal and on cardiac parameters derived from the EKG signal. Further, the controller can determine a need for defibrillation or pacing of the patient's heart based on the signal and can administer treatment with electrical shocks to the heart via the electrode coupled to the blood pump. The use of an electrode with a blood pump already in place in the heart allows for more efficient and safer treatment of serious cardiac conditions.

To provide a system for transmitting blood pressure reduction electrical stimulation to the heart of a patient capable of determining a desirable AV delay.SOLUTION: The atrium is paced and the ventricle is paced with a given (arbitrary) delay to obtain a desired blood pressure change. Then, the atrium is sensed, the ventricle is paced, the blood pressure change is observed, and the resulting blood pressure change is compared with the paced-atrium-paced-ventricle desired blood pressure change. In the case where the blood pressure changes are not substantially equal, the timing of the sensed-atrium-paced-ventricle stimulation is adjusted on the basis of the comparison. The new modified resulting blood pressure change is observed, and the modified blood pressure change is compared with the paced-atrium-paced-ventricle desired blood pressure change. Adjustment and observation may be repeated until the timing of the sensed-atrium-paced-ventricle stimulation achieves the same blood pressure change as the desired blood pressure change of the paced-atrium-paced-ventricle stimulation.SELECTED DRAWING: Figure 9

The invention relates to an intelligent heart electrophysiological signal analysis and Jiangshi connecting line optimization system and method, and belongs to the technical field of electrocardio systems, the system comprises a plurality of modules for cooperative work, a data acquisition module is used for acquiring human body 12-lead electrocardiogram and intracardiac electrogram signals and executing a pace-making stimulation function; the signal preprocessing module filters received signals, the feature extraction module extracts time domain, frequency domain and nonlinear features, the deep learning module identifies abnormal heart rhythms by using a pre-training model, the parameter tuning module dynamically adjusts model parameters and optimizes and analyzes the parameters, and the Jiangshi connecting line optimization module improves signal quality. The intelligent monitoring module automatically monitors multiple indexes, the display interface module visually displays an electrocardiogram, the system compatible module is connected with multiple devices, and the control module coordinates all the modules to ensure efficient operation of the system.

Provided herein are methods of treating a patient comprising providing a medical apparatus comprising an external system and an implantable system, implanting the implantable system, and delivering at least one of power or data to the implantable system with the external system. The external system comprises: at least one external antenna configured to transmit a first transmission signal to the implantable system; an external transmitter configured to drive the at least one external antenna; an external power supply; and an external controller. The implantable system comprises: at least one implantable antenna configured to receive the first transmission signal from the first external device; an implantable receiver; at least one implantable functional element configured to interface with the patient; an implantable controller; an implantable energy storage assembly; and an implantable housing surrounding at least the implantable controller and the implantable receiver. Medical apparatus are also provided.

Provided is a medical apparatus for a patient comprising an external system and an implantable system. The external system can be configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system can be configured to receive the one or more transmission signals from the external system. The external system comprises a first external device comprising at least one external antenna configured to transmit a first transmission signal to the implantable system. The implantable system comprises a first implantable device comprising at least one implantable antenna configured to receive the first transmission signal from the first external device. At least one of the external antenna or implantable antenna comprises an antenna assembly comprising: at least one transmitting / receiving antenna; and at least one shielding element positioned between the at least one transmitting / receiving antenna and an interfering component.

Systems and methods for managing machine-generated alert notifications of medical events detected from one or more patients are described herein. An embodiment of a data management system may receive an adjudication of a medical event episode including an episode characterization. A storage unit stores an association between one or more episode characterizations and corresponding detection algorithms for detecting a medical event having respective episode characterizations. An episode management circuit may detect from a subsequent episode, using the stored association, a medical event having an episode characterization of at least one medical event episode presented for adjudication, and schedule presenting at least a portion of the subsequent episode based on the detection.

The invention provides an intelligent electrical stimulation system based on cloud AI and a control method. The intelligent electrical stimulation system based on the cloud AI comprises a wrist stimulator which comprises a first acquisition module and a stimulation module; the mobile terminal is in communication connection with the wrist stimulator; the mobile terminal is in communication connection with a cloud server, the AI model module outputs a stimulation parameter set based on the first data and user pre-stored data, and the first data is transmitted to the cloud server by the wrist stimulator through the mobile terminal; the optimization processing module adjusts the stimulation parameter set based on user tolerance data and transmits the adjusted stimulation parameter set to the wrist stimulator. The intelligent electrical stimulation system based on the cloud AI can realize accurate monitoring of tremor of a user, personalized electrical stimulation treatment, real-time output of a corresponding stimulation parameter set according to the tolerance condition of the user, and personalized optimization of a treatment scheme.

A pacing system (100) for wireless extra-cardiac pacing of a heart (303) of a patient (301). The pacing system (100) includes a generator (102), a transmitter (104), and an implant device (106). The generator (102) is configured to generate energy. The transmitter (104) is configured to transmit the energy generated by the generator (102). The implant device (106) including an expandable stent that is configured to be implanted in the heart (303) of the patient (301), the implant device (106) including a receiver (220) that is configured to receive the energy that is transmitted by the transmitter (220), the implant device including a transducer (222) that is configured to transduce the energy into a pacing stimulus that is configured to pace the heart (303).

This disclosure is directed to systems and techniques for detecting change in patient health based upon peak and non-peak patient activity data. In some examples, the peak and non-peak patient activity data correspond to one or more peak (time) periods and the one or more non-peak periods, respectively, where at least one peak period and at least one non-peak period corresponds a highest activity level and a lowest activity level, respectively, for a single day. If a change in patient health is detected, the techniques described herein may direct a medical device to generate for display output indicating the detection of the change in patient health.

A system and method for reducing ventricular filling volume is disclosed. A stimulation circuit is used to stimulate a patient's heart to reduce ventricular filling or blood pressure. Stimulating the heart to a certain degree to reduce blood pressure may cause the cardiovascular system to eventually adapt to the stimulation and return to a higher blood pressure. To reduce or prevent the heart's adaptive response, the stimulation pattern may be configured inconsistently, and the stimulation circuit may be used to stimulate the patient's heart to cause at least some of the atrial contractions with the atrioventricular valves closed. Such atrial contractions allow less blood to enter the corresponding ventricle than when the atrioventricular valves are open throughout the entire atrial contraction.

Disclosed are a cloud-based AI intelligent electrical stimulation system and control method. The cloud-based AI intelligent electrical stimulation system includes: a wrist stimulator, including a first acquisition module and a stimulation module; a mobile terminal in communication connection with the wrist stimulator; a cloud server in communication connection with the mobile terminal, where the AI model module outputs a stimulation parameter set based on the first data and pre-stored user data, and the first data is transmitted by the wrist stimulator to the cloud server through the mobile terminal; and the optimization processing module adjusts the stimulation parameter set according to user tolerance data and transmits the adjusted stimulation parameter set to the wrist stimulator. The cloud-based AI intelligent electrical stimulation system enables precise monitoring of user tremors, personalized electrical stimulation treatment, and real-time output of corresponding stimulation parameter sets, and personalized and optimized therapies are available.

A system for application of neurostimulation includes an outer sheath, an elongate inner member in the outer sheath and movable relative to the outer sheath. The inner lumen has a distal end. An expandable member is coupled to the distal end of the inner member and is in the outer sheath. The expandable member is self-expanding upon from a compressed state in the outer sheath to an expanded state out of the outer sheath. The expandable member includes a distal portion including a plurality of wires woven together and a proximal portion including the plurality of wires extending parallel to a longitudinal axis. The system includes a plurality of electrode assemblies outward of the expandable member and circumferentially spaced around the expandable member. Each electrode assembly is coupled to two of the wires extending parallel to the longitudinal axis. Each electrode assembly includes a plurality of longitudinally-spaced electrodes.

A method for assessing a physiological status of a patient is described herein. The method includes placing at least one pressure sensor in an anterior mediastinal space of the patient. Pressure signal data received from the at least one pressure sensor is amplified and filtered to separate the pressure signal data into different frequency bands. A set of pressure curves is generated based on the separated pressure signals in different frequency bands, and a physiological status of the patient is assessed based at least in part on the set of pressure curves.

Methods and apparatus disclosed for treating pain and mobility impairments include synergistic application of various stimuli to a patient. These stimuli can comprise serial and sequential combinations of predetermined subatmospheric pressure values, time-varying voltage waveforms applied to electrodes in contact with different portions of a patient's skin in a matter that produces currents which stimulate nerve fibers that activate muscles, and direct practitioner-assisted mechanical movement of tissue. Apparatus and systems for applying the treatment methods are disclosed.

System for arrhythmia detection and confirmation includes implantable medical device (IMD) having a sensing circuit for sensing cardiac activity (CA) for one or more cardiac cycles and generating one or more CA signals. An implantable pressure sensor (IPS) includes IPS sensing circuit for sensing pressure during the one or more cardiac cycles and generating one or more pressure signals. IMD and IPS include communications circuits for communicating with each other and / or an external device. One or both of IMD or IPS includes memory for storing program instructions and processor(s) for analyzing one of the CA or pressure signals, for one or more cardiac cycles, to detect a candidate arrhythmia. In response to detecting candidate arrhythmia, the processor(s) obtain another one of CA or pressure signals for cardiac cycles corresponding to the one or more cardiac cycles, and confirm or deny candidate arrhythmia based on the other one of the signals.

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.

An integrated electrode structure can comprise a catheter shaft comprising a proximal end and a distal end, the catheter shaft defining a catheter shaft longitudinal axis. A flexible tip portion can be located adjacent to the distal end of the catheter shaft, the flexible tip portion comprising a flexible framework. A plurality of microelectrodes can be disposed on the flexible framework and can form a flexible array of microelectrodes adapted to conform to tissue. A plurality of conductive traces can be disposed on the flexible framework, each of the plurality of conductive traces can be electrically coupled with a respective one of the plurality of microelectrodes.

Cardiac pacemaker for a patient's heart including a processing unit with a data memory, further including a first detector, and a second detector, a pacing signal generator, which are all electrically connected to the processing unit, wherein the first detector is configured to detect time-dependent electrical signals of the heart, wherein the second detector is configured to detect time-dependent bodily signals of the patient different from the signals detected by the first detector, wherein the first detector and the second detector are configured to transmit the detected and, if applicable, pre-processed signals to the processing unit, wherein the processing unit is configured to process the signals received from the first detector and the signals from the second detector and to detect from the received signals of the first detector intrinsic atrial events, intrinsic ventricular events and pacing events and to determine an actual cardiac rate.

The utility model relates to the field of special pillows for surgeries, and discloses a special pillow for pacemaker implantation surgeries, which comprises a bottom plate, a headrest is detachably arranged on the bottom plate, a groove is arranged in the middle of the top surface of the headrest, two placing holes are arranged on the top surface of the headrest, head air bags are placed in the placing holes, and the head air bags are arranged on the bottom plate. The front side of the headrest is connected with a shoulder pillow, and a shoulder air bag is placed in the shoulder pillow. According to the head fixing device, by taking deviation to the right side as an example, a medical worker can inflate the head air bag and the shoulder air bag on the left side, and when the size of the head air bag is increased, the left side of the head of a patient can be supported, so that the head of the patient can deviate to the right side, and the head of the patient is fixed; the shoulder portion of a patient is supported through the shoulder air bag, it is ensured that the patient does not feel tired when being in the same posture for a long time, the comfort of the patient in the operation process is improved, and smooth operation is facilitated.

Methods and devices for reducing ventricle filling volume are disclosed. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to reduce ventricle filling volume or even blood pressure. When the heart is stimulated in a consistent way to reduce blood pressure, the cardiovascular system may over time adapt to the stimulation and revert back to the higher blood pressure. In some embodiments, the stimulation pattern may be configured to be inconsistent such that the adaptation response of the heart is reduced or even prevented. In some embodiments, an electrical stimulator may be used to stimulate a patient's heart to cause at least a portion of an atrial contraction to occur while the atrioventricular valve is closed. Such an atrial contraction may deposit less blood into the corresponding ventricle than when the atrioventricular valve is opened throughout an atrial contraction.

A method and apparatus for treatment of heart failure by increasing secretion of endogenous naturetic hormones ANP and BNP such as by stimulation of the heart atria. Heart pacing is done at an atrial contraction rate that is increased and can be higher than the ventricular contraction rate. Pacing may include mechanical distension of the right atrial appendage. An implantable device is used to periodically cyclically stretch the walls of the appendage with an implanted balloon.

The utility model relates to the technical field of cardiovascular intervention. The utility model provides an electrode wire guiding sheath. The electrode wire guiding sheath comprises a handle provided with a bending adjusting piece and a sheath tube body. The near end of the sheathing canal body is connected with the handle, a bending adjusting steel wire channel extending from the near end to the far end is arranged in the canal wall of the sheathing canal body, the bending adjusting steel wire is arranged in the bending adjusting steel wire channel, and the bending adjusting steel wire is connected with a bending adjusting piece of the handle at the near end of the sheathing canal body so that bending of the bending adjusting steel wire can be adjusted through the bending adjusting piece. A tearing line groove extending from the near end to the far end is further formed in the pipe wall of the sheathing pipe body, and the tearing line groove and the bending adjusting steel wire channel do not coincide. According to the guide sheath, the electrode wire can be shaped through the bending adjusting piece and the bending adjusting steel wire, meanwhile, the tearing line groove is formed in the tube wall of the sheath tube body, the tearing line groove and the bending adjusting steel wire do not interfere with each other, and the sheath tube body can be conveniently withdrawn after the electrode wire is implanted into the heart.

A medical device is configured to receive cardiac electrical signals and sense ventricular event signals from the cardiac electrical signals. The medical device may start a validation window in response to sensing a ventricular event signal and determine if the ventricular event signal is a valid event signal or an invalid event signal based on processing of a different cardiac electrical signal than the cardiac electrical signal from which the ventricular event signal was sensed.

A system for delivering a lead an implantable diagnostic / treatment device includes a needle defining a needle lumen and including a biased portion. The biased portion is configured to bias at least a distal end portion of the needle toward a posterior sternal wall when disposed in a body of a patient. The system includes a stylet removably coupled to the needle that is configured to selectively straighten the biased portion of the needle for insertion into the body of the patient. The system includes a guidewire configured to extend through the needle lumen and into the substernal space. The system includes a sheath configured to be advanced over the guidewire to dispose a distal end of the sheath in the substernal space. the sheath defines a sheath lumen allowing the lead to be advanced therethrough to deliver the lead to a substernal space in the body of the patient.

The present invention discloses a human-implanted antenna system with high radiation efficiency, relating to the field of communications technology. The system comprises a substrate, a top copper layer, a bottom copper layer, and a lumped capacitor. The top of the substrate is provided with a top copper layer for radiation, and the bottom of the substrate is provided with a bottom copper layer for low-impedance transmission. The bottom-to-top electric field coupling structure designed in this application increases the antenna's input impedance and radiation efficiency. The antenna wirelessly receives and transmits signals within the body, establishing a communication connection between a leadless cardiac pacemaker and an external device. The antenna's miniaturized design reserves more space for key components such as the leadless cardiac pacemaker's battery, thereby supporting a larger battery capacity and extending the device's service life. This reduces the device's power consumption, thereby reducing the frequency of device replacements and lowering the risk of surgical procedures for patients. Due to its smaller size and higher efficiency, the implanted device places less strain on the patient's body.

Devices and methods for allowing for improved assisted ventilation of a patient. The methods and devices provide a number of benefits over conventional approaches for assisted ventilation. For example, the methods and devices described herein permit blind insertion of a device that can allow ventilation regardless of whether the device is positioned within a trachea or an esophagus. In addition, the methods and device allow for timed delivery of ventilations based on a condition of a thoracic cavity to increase the amount and efficiency of blood flow during a resuscitation procedure.

A biostimulator and a biostimulator system for septal pacing, is described. The biostimulator includes an articulation to allow an electrode axis of a pacing electrode to be directed differently than a housing axis of a housing. The housing contains electrical circuitry that is electrically connected to the pacing electrode. The differently directed axes allow the pacing electrode to affix to target tissue of an interventricular septal wall of a heart when the housing of the biostimulator is located near an apex of the heart. The articulation can include a flexible portion of an extension, a hinge, or a tether. Other embodiments are also described and claimed.

A system includes a first sensor, a second sensor, and a sensing device coupled to the first sensor and the second sensor. The first sensor is disposed in an anterior mediastinum of a patient and is configured to detect a pressure signal therein. The second sensor is configured to detect a cardiac electrical signal. The sensing device includes a processor that is configured to execute instructions stored in a memory that cause the processor to (i) receive the pressure signal and the cardiac electrical signal, (ii) correlate the pressure signal and the cardiac electrical signal, (iii) determine, based on the correlated signals, at least one cardiac parameter, (iv) monitor the at least one cardiac parameter over a period of time to determine if a change in the cardiac parameter has occurred, and (v) responsive to determining the change has occurred, generate at least one action associated with the change.

A method and system is presented for an implantable wireless power receiver for use with a medical stimulation or monitoring device. The receiver receives transmitted energy through one or more non-inductive antenna(s), utilizes microelectronics to perform rectification of the received signal for generation of a DC power supply to power an implantable device, and may also utilize microelectronics to provide parameter settings to the device, or stimulating or other waveforms to a tissue.

Systems for replacing the function of a native atrioventricular valve are described. The systems can include a prosthetic heart valve including a self-expanding frame and a plurality of leaflets. The systems can include a delivery catheter having an elongate shaft for advancing the prosthetic heart valve through a patient's vasculature to the native atrioventricular valve, the elongate shaft including a capsule along a distal end portion of the elongate shaft for maintaining the prosthetic heart valve in a compressed state. A tether assembly can extend through the elongate shaft of the delivery catheter and can include loop portions. A release assembly can include a plurality of flexible release tethers that are retractable for removal from the loop portions and thereby allowing the tether assembly to be released from the prosthetic heart valve.