Matches 1 - 49 out of 49
Match Document Document Title
7610099 Method of processing telemetry signals in an implantable medical device including a telemetry processor  
An implantable medical device with a main processor also has a telemetry processor to perform some telemetry processing functions resulting under some circumstances in reducing demands on the main...
7587241 Method for controlling telemetry in an implantable medical device based on power source capacity  
A method for controlling an implantable medical device is disclosed. In one embodiment, a voltage of a power source within the implantable medical device is monitored. If this voltage is above a...
7584000 Method and system for energy conservation in implantable stimulation devices  
The application relates to a stimulation device with power conservation functionality. In implantable devices, power supplies may be limited. Replenishing these power supplies may require costly...
7574266 System and method for telemetry with an implantable medical device  
An implantable medical device (IMD) includes a telemetry module to communicate with an external device according to a given protocol. To establish a communication session, the IMD will extend...
7502648 Artificial cardiac pump  
An artificial cardiac pump includes an impeller ( 3 ) rotatably supported on a fixed shaft body ( 2 ) in a housing ( 1 ) and a drive mechanism rotating the impeller, wherein blood is taken in from...
7336991 Multi-channel biological signal telemetry systems  
A system for performing telemetry of multi-channel biological signals obtained from electrodes attached to a subject, is provided with a transmitter and a receiver. In the transmitter, a converter...
7333853 Implantable medical device having a controlled diagnostic function  
Methods and systems for providing an implantable medical device with a controlled diagnostic function adapted to convert from a monitoring mode to a therapeutic mode upon sensing an actionable...
7292168 DSP with variable sample frequency  
An implantable medical device uses a sampling scheme to obtain digital representation from analog signals. The analog signals represent intracardiac activity. Generally, a detector detects the...
7286875 Monitoring ventricular contractions using an implantable stimulation device  
An implantable cardiac stimulation device is configured to measure selected ventricular contraction parameters and possibly apply stimulation therapy based on the ventricular contraction...
7283873 Monitoring and synchronizing ventricular contractions using an implantable stimulation device  
An implantable cardiac stimulation device is configured to measure selected ventricular contraction parameters and apply stimulation therapy based on an analysis of the ventricular contraction...
7254448 Method of operating an implantable medical device telemetry processor  
An implantable medical device with a main processor also has a telemetry processor to perform some telemetry processing functions resulting under some circumstances in reducing demands on the main...
7212863 Implantable medical device operable in a special mode upon activation during a programmed time  
An implantable medical device is operable in a normal mode of operation, including a test mode, as well as in at least one other mode of operation outside of the normal mode. The device has a...
7155281 Complimentary activity sensor network for disease monitoring and therapy modulation in an implantable device  
Energy efficient methods and systems for using multi-dimensional activity sensors with implantable cardiac devices are provided. In certain embodiments the output of a passive activity sensor (used...
7016730 Method of operating implantable medical devices to prolong battery life  
A method of conserving power and extending the life of a battery in an implantable rate-responsive cardiac rhythm management device. In accordance with the preferred embodiment, a first physiologic...
6988215 Method and apparatus for synchronization of clock domains  
A method and an apparatus for synchronizing clock domains. A slow clock signal is received. A circuit in a slow clock domain is operated based upon the slow clock signal. A fast clock signal is...
6927721 Low power A/D converter  
A comparator is arranged to compare a series of analog voltage signal samples on a first capacitor with a voltage on a second capacitor which is linearly increased or decreased to equal the sample...
6917831 Electrically activated implant  
This invention relates to an electrically active implant with a plurality of energy-consuming components and an activation device designed to activate the implant. The electrically active implant...
6892096 Implantable cardiac stimulating device with optimized demand  
It is important in cardiac pacing devices and systems to achieve efficient power utilization and conservation to extend the life of the battery cells, thereby extending the intervals between...
6842642 Adjustable cardiac resynchronization  
Techniques are presented for providing adjustable cardiac resynchronization with an implanted medical device such as a pacemaker. For example, cardiac resynchronization may be provided during some...
6701188 Controlling noise sources during telemetry  
The invention presents techniques for reducing the interference to telemetry from an implanted medical device caused by a source of controllable noise. In the context of an implanted system that...
6687543 Implantable cardiac stimulation device having reduced shelf current consumption and method  
A processor controlled implantable cardiac stimulation device may be placed into a shelf mode for extending the shelf life of the device. The device includes a real time clock circuit, a watch dog...
6472991 Multichannel communication protocol configured to extend the battery life of an implantable device  
A communication protocol that is configured to extend the battery life of devices that monitor and/or affect body parameters and is particularly useful in a system comprised of a system control...
6438422 Power dissipation reduction in medical devices using adiabatic logic  
A system for minimizing power dissipation within an implantable medical device through use of adiabatic logic is disclosed. The system includes a first and a second sub-circuit of the implantable...
6415181 Implantable medical device incorporating adiabatic clock-powered logic  
Improved operating system architecture for an implantable medical device incorporating adiabatic clock-powered logic alone or in conjunction with conventional clocked logic or self-timed logic for...
6389315 Implantable medical device incorporating self-timed logic  
Improved operating system architecture for an implantable medical device incorporating self-timed logic for reducing power consumption and increasing and improving processing capabilities is...
6141583 Implantable medical device incorporating performance based adjustable power supply  
A method or apparatus for conserving power in an implantable medical device (IMD) of the type having at least one IC powered by a battery wherein, in each such IC, a voltage dependent oscillator...
6127410 Compositions, apparatus and methods for facilitating surgical procedures  
Methods are provided for conducting surgical procedures in a patient wherein, during the surgical procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and...
5916237 Power control apparatus and method for a body implantable medical device  
An apparatus and method for controlling power in digital logic circuitry is disposed in a body implantable biomedical device disclosed. A power switch, such as a power gating transistor, is coupled...
5861010 Device for temporarily closing a canal in a body, in particular for assisting the function of the heart by application of counter-pressure  
The present invention concerns a device for temporarily closing a canal in a body, in particular for assisting the function of the heart by application of counter-pressure. The device is...
5766229 Capture verification method and apparatus for implantable pacemaker utilizing heart rhythm stability measurements to minimize the likelihood of fusion  
An implantable pacemaker effectuates a capture verification method that minimizes the expenditure of battery current. A capture verification test is performed only occasionally, on a sampled basis,...
5766228 Enslaved active implantable medical device with reduced power consumption  
An active implantable medical device, particularly a rate responsive cardiac pacemaker having reduced power consumption. The device has a first sensor to measure a parameter that is used to control...
5609611 Pacemaker system with porous electrode and residual charge or after-potential reduction  
A cardiac pacemaker system is provided which includes a stimulation electrode adapted for being anchored in the heart. An output capacitor is coupled to the stimulation electrode. A first circuit...
5573003 Low-power delta modulator for intracardial signal monitoring in a cardiac device  
A low-power delta modulator analog-to-digital converter is provided that is suitable for use in a cardiac stimulating device for monitoring intracardial signals. The delta modulator consumes less...
5527345 Implantable atrial defibrillator having an intermittenly activated pacing modality  
An implantable atrial defibrillator applies cardioverting electrical energy to the atria of a human heart in need of cardioversion and thereafter paces the heart in a demand mode. The atrial...
5522856 Pacemaker with improved shelf storage capacity  
A pacemaker has logic incorporated for holding the pacemaker circuitry, or at least a portion of such circuitry, in a low current drain "standby" mode of operation from time of fabrication until...
5464431 Atrial fibrillation detector  
An atrial defibrillator implantable beneath the skin of a patient includes an intervention sequencer for performing an intervention sequence. The intervention sequencer includes an atrial...
5370666 Pacemaker with power-consuming component inhibited during storage  
A pacemaker contains at least one power-consuming component, such as a sensor with associated electronic circuitry for controlling the pacemaker function or a heart signal detector, and an...
5350412 Device for reducing power consumption in medical equipment which is implantable in the human body  
A device for reducing power consumption in medical electrical equipment, implantable in the human body, having a sensor, which includes a sensor element and sensor electronic circuitry for sensing...
5350407 Implantable stimulator having quiescent and active modes of operation  
A method and apparatus for selectively controlling an oscillator-driven implantable stimulator to operate either in a quiescent state, in response to a command from an external communicating...
5022395 Implantable cardiac device with dual clock control of microprocessor  
A microprocessor based implantable cardiac treatment device having first and second clocks. The first clock is a continuously running external clock of a relatively low frequency for controlling...
4875483 Implantable cardiac pacer with programmable antitachycardia mechanisms  
A multi-programmable ROM-less cardiac pacer employs an intermittent microprocessor turned ON and OFF by a pacer timer clockwise independent of the processor to time intervals preset by the...
4860751 Activity sensor for pacemaker control  
A cardiac pacer is provided which incorporates a sensor responsive to the physical activity of the pacer-wearing patient. The output of the physical activity sensor is utilized by control circuitry...
4726380 Implantable cardiac pacer with discontinuous microprocessor, programmable antitachycardia mechanisms and patient data telemetry  
A multi-programmable ROM-less cardiac pacer employs an intermittent microprocessor turned ON and OFF by a pacer timer clockwise independent of the processor to time intervals preset by the...
4712556 Pacemaker and method for ventricular rate limit operation and termination of pacemaker mediated tachycardia  
A microprocessor-controlled pacemaker is programmed to extend an atrial refractory interval in response to the detection of events which could initiate a pacer sustained tachycardia. The extended...
4624260 Pacemaker with conditional atrial tracking capability  
An implantable microprocessor-controlled dual chamber heart pacemaker is programmed to control the timing of the pacing of the ventricle in response to high rate atrial signals. The microprocessor...
4503857 Programmable cardiac pacemaker with microprocessor control of pacer rate  
A programmable pacemaker apparatus having a microprocessor and means for receiving program information from an external source, means for generating and delivering stimulus signals and means for...
4404972 Implantable device with microprocessor control  
An improved body function assistance device is provided wherein a microprocessor controls the response of the device to various external physiological events and internal timer events. The...
4390022 Implantable device with microprocessor control  
An improved body function assistance device is provided wherein a microprocessor controls the response of the device to various external physiological events and internal timer events. The...
4365290 Computer system with power control circuit  
A digital computer system is described as comprising an input data circuit, a processor for executing a program stored in a memory to process the inputted data, a depletable energy source (e.g., a...
Matches 1 - 49 out of 49