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Class 607/16 - Intermittent operation for energy conservation


Subclass of Class 607 - Surgery: light, thermal, and electrical application
Definition: Subject matter under 9 wherein at least a part of the
No. of patents: 77
Last issue date: 01/19/2010


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NumberTitleIssue Date
7650185System and method for walking an implantable medical device from a sleep state
A system and method for waking up an implantable medical device (“IMD”) from a sleep state in which power consumption by the IMD is essentially zero. The IMD may be adapted to perform one or more designated measurement and/or therapeutic functions. In one embodi...
01/19/2010
7587241Method 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 first threshold, the implantable medical device enables the following f...
09/08/2009
7502648Artificial 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 the front side and force-fed to the rear side by the r...
03/10/2009
7361142Electronic device for health index measurement and control method of the same
The present invention allows easily performing various types of controls and improving productivity without adding a special communication section. The present invention includes a power receiving section 21 to be connected to a driving power supply 50...
04/22/2008
7336991Multi-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 converts the multi-channel biological signals to digital data, and a ...
02/26/2008
7333853Implantable 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 cardiovascular event are disclosed. A preferred embodiment uses an intera...
02/19/2008
7319899Sensing techniques for implantable medical devices
The invention is directed to sensing techniques that can be executed by an implantable medical device (IMD). The sensing techniques exploit the fact that useful information can be sensed during the periods where the sympathetic and vagal tone balance changes in a pa...
01/15/2008
7313443Method and apparatus for hardware/firmware trap
The operation of an implantable medical device executing at least one set of firmware code is modified using a hardware/firmware trap at a point of execution of the set of firmware code. A patch code for directing the implantable medical device to perform a particul...
12/25/2007
7292168DSP 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 amplitude of the analog signals and generates first and second difference...
11/06/2007
7286875Monitoring 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 parameters. In accordance with one aspect, the ventricular contraction paramete...
10/23/2007
7283873Monitoring 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 parameters. The ventricular contraction parameters may include impedance ...
10/16/2007
7254448Method 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 processor, conserving energy, increasing telemetry processing speed, ...
08/07/2007
7236827Single-use medical device
An electrical therapy device has a blocking triggering unit and a re-use blocking unit. The re-use blocking unit prevents the functions of the electrical therapy device during implantation in dependence on the condition of the blocking triggering unit. The blocking ...
06/26/2007
7233822Combination of electrogram and intra-cardiac pressure to discriminate between fibrillation and tachycardia
A system and method for detecting and classifying cardiac arrhythmias based on cardiac pressure signals or the combination of cardiac electrical and cardiac pressure signals. A cardiac electrogram signal is sensed to derive a cardiac rate from which an arrhythmia de...
06/19/2007
7212863Implantable 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 signal detector that is responsive to an external activation and a timer t...
05/01/2007
7190273Joint endoprosthesis with ambient condition sensing
A system for monitoring the ambient conditions of a mammalian joint, and particularly a joint that has been instrumented with a joint endoprosthesis includes a sensor supported by a component of the joint endoprosthesis. The system includes a transmission element th...
03/13/2007
7155281Complimentary 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 for rate responsive pacing) is used to trigger temporary use of a re...
12/26/2006
7144365Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and method of using same. One embodiment of the extracardiac system comprises a pump ...
12/05/2006
7062328System and method for providing improved specificity for automatic mode switching within an implantable medical device
Techniques for improving the specificity of automatic mode switching (AMS) are provided to prevent inappropriate mode switching and to ensure that mode switching is performed when needed. In one example, improved techniques for calculating a filtered rate interval (...
06/13/2006
7047079Method and system for energy conservation in implantable stimulation devices
The invention relates to a stimulation device with power conservation functionality. In implantable devices, power supplies may be limited. Replenishing these power supplies may require costly surgery or periodic recharging depending on the model. A method may be im...
05/16/2006
7020524Implantable cardiac stimulation device having optimized AV/PV delays for improved atrial kick during automatic capture and threshold determinations
An improved device and method for performing automatic capture/threshold determination that is particularly useful in an implantable cardiac stimulation device. While conventional devices use a fixed shortening of the AV/PV delays during automatic capture/threshold ...
03/28/2006
7016730Method 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 sensor is used to enable a power consuming feature only when the fir...
03/21/2006
7013178Implantable medical device communication system
An implantable medical device communication system communicates information between an implantable medical device and at least one slave device by way of a two-wire bus. Slave devices may include remote sensors and other implantable medical devices. The implantable ...
03/14/2006
6988215Method 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 received. The slow clock signal is synchronized using the fast clock sig...
01/17/2006
6976998Minimally invasive retinal prosthesis
An ocular device that can more safely and effectively perform all functions needed of a retinal prosthesis with electronic components that are placed outside the wall of an eye, are powered wirelessly provided by an external power source, and which provide a patient...
12/20/2005
6927721Low 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 value. The comparator's single output freezes the count of the counte...
08/09/2005
6917831Electrically 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 is characterized by a deactivation device designed to deactivate the e...
07/12/2005
6915167Method and apparatus for hardware/firmware trap
A method and an apparatus for a hardware/firmware trap. At least one set of a firmware code is executed for operation of the device. Modification to the operation of the device is performed. The modification to the operation comprises: receiving a patch code; creati...
07/05/2005
6908227Apparatus for thermal management of multiple core microprocessors
An apparatus for managing the temperature of an integrated circuit having a multiple core microprocessor is described. Specifically, thermal sensors are placed at potential hot spots throughout each microprocessor core. A thermal management unit monitors the thermal...
06/21/2005
6892096Implantable 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 invasive medical procedures to replace components in the cardiac pacing sys...
05/10/2005
6889082Implantable heart assist system and method of applying same
An extracardiac pumping for supplementing the circulation of blood, including the cardiac output, in a patient without any component thereof being connected to the patient's heart, and methods of using same. One embodiment provides a vascular graft that has a first ...
05/03/2005
6842642Adjustable 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 time periods but not during other time periods, or cardiac resynchron...
01/11/2005
6711436Compositions, apparatus and methods for facilitating surgical procedures
Methods are provided for conducting diagnostic or therapeutic medical or surgical procedures in a patient wherein, during the procedure, autonomous ventricular electrical conductivity and escape beats are reversibly and transiently suppressed to facilitate the proce...
03/23/2004
6701188Controlling 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 includes a defibrillator system and a telemetry system, for ...
03/02/2004
6687543Implantable 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 timer circuit having a duty cycle, a telemetry circuit cap...
02/03/2004
6668193Method and apparatus for cardiac shock therapy
An apparatus and method for delivering defibrillation shock therapy employing a multi-terminal pulse output circuit. In such a circuit, at least three electrode lead terminals are switchably connected to the positive and negative terminals of an energy st...
12/23/2003
6472991Multichannel 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 unit (SCU) and one or more implanted devices. Each such impla...
10/29/2002
6438422Power 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 medical device. An electrical connection interconnects the ...
08/20/2002
6434425Power consumption reduction in medical devices employing multiple supply voltages and clock frequency control
Power consumption in medical devices is reduced through the operation of circuits at clock speeds of lower levels to adequately complete desired functions during predetermined time periods (e.g., blanking interval, upper rate interval, etc.) just-in-time ...
08/13/2002
6414018Compositions, 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 transiently suppressed to facilitate the surgical procedure. Al...
07/02/2002
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