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7426413 |
Implantable medical device with temperature measuring and storing capability
An implantable medical device such as a cardiac pacemaker or implantable cardioverter/defibrillator with the capability of storing body temperature measurements taken periodically and/or when...
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7206637 |
Cardiac pacing using sensed coronary vein blood temperature and left ventricular flow rate
Methods of cardiac pacing involve sensing left ventricular electrical rhythms, sensing left ventricular blood flow rate, and sensing a coronary vein blood temperature. The methods further involve...
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7136705 |
Method and apparatus for monitoring sensor performance during rate-responsive cardiac stimulation
A cardiac stimulation device and method monitor and store discrepancies in sensor indicated rates determined from two or more sensors generating signals related to metabolic demand. One feature...
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7127291 |
Coronary sinus lead with thermal sensor and method therefor
A lead system is provided including a coronary sinus lead extending from a proximal end to a distal end, where the lead includes at least one thermal sensor, or optionally, a thermistor. The...
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7058450 |
Organizing data according to cardiac rhythm type
A plurality of sensors are disposed in and around the heart of a patient to collect data such as various electrical parameters, pressure parameters and temperature parameters. The data collected...
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7037273 |
Core body temperature monitoring in heart failure patients
An implanted heart monitor includes sensors that measure various aspects of the heart failure patient's heart. A remote heart monitoring system connects the implanted heart monitor to a care...
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6892095 |
Method and apparatus for monitoring left ventricular work or power
A body implantable system employs a lead system having at least one electrode and at least one thermal sensor at a distal end. The lead system is implanted within a patient's heart in a coronary...
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6681135 |
System and method for employing temperature measurements to control the operation of an implantable medical device
A medical implantable device that includes a temperature sensor circuit and a control circuit coupled to the temperature sensor circuit to control non-therapy operation of the medical implantable...
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5814087 |
Rate responsive pacemaker adapted to adjust lower rate limit according to monitored patient blood temperature
A rate responsive pacemaker is provided having the capability of automatically adjusting the lower rate limit (LRL) for sleep, or nighttime. The pacemaker has a temperature sensor for determining...
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5486200 |
Automatic postmortem deactivation of implantable device
A method and apparatus for minimizing the potential for injury due to operation of a body-implantable device during explant manipulation thereof. In one embodiment of the invention, a...
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5476484 |
Apparatus for sensing a physical condition in a living subject
An apparatus for determining a physical condition in a living subject by determining peripheral resistance to flow is wherein peripheral resistance to flow is determined by measuring changes in the...
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5336244 |
Temperature sensor based capture detection for a pacer
A pacemaker system which includes a fast responding temperature sensor located near the distal end of a transvenous pacing lead generates a cycle-by-cycle variation of temperature indicative of the...
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5306293 |
Device for the prevention of cardiac failures
The implantable device, of the Holter intervention type, permits the detection and the polygraphic analysis (ECG, TA, haemodynamics, resonant frequencies), of the cardiovascular parameters,...
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5101824 |
Rate-responsive pacemaker with circuitry for processing multiple sensor inputs
An implantable rate-responsive pacemaker is disclosed wherein two or more sensors indicative of physiological demand are utilized in a fashion designed to realize the advantages of both sensors in...
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5088491 |
Heart pacemaker
A cardiac pacemaker for implanting in a patient includes a device for applying stimulating pulses to the heart of the patient at a rate determined by a pacing parameter; a device for detecting a...
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5085215 |
Metabolic demand driven rate-responsive pacemaker
A rate-responsive dual-chamber pacemaker and pacing method for supporting the heart with electrical stimulation at a pacing rate driven by the heart's sinus node or, alternatively, by a sensor...
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5081988 |
Exercise responive cardiac pacemaker
An exercise-responsive cardiac pacemaker is provided which physiologically controls the stimulation rate of a heart by sensing the venous blood temperature in the right ventricle of the heart. A...
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5074304 |
Implantable heart pacemaker and method for stimulating the heart with the repetition rate of the stimulations of heart muscle contractions limited to a maximum value
An implantable heart pacemaker includes a detector for natural heart muscle contractions in the region of the atrium and circuitry for stimulating heart muscle contractions in the region of the...
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5063927 |
Rate-responsive pacemaker
A pacemaker has means for producing first and second signals one of which changes rapidly in response to changes in exercise level but may inaccurately represent the appropriate pacing rate. Such...
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5044366 |
Rate responsive cardiac pacemaker
A rate responsive cardiac pacemaker for implantation in a patient utilizes a pair of sensors. One is an activity sensor responsive to movements of the patient for generating an electrical signal...
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5042480 |
Method and implantable medical device for stimulating tissue contractions
A medical device implantable into the body of a patient with which spontaneous tissue contractions can be detected and tissue contractions can be stimulated, generates a stimulation after the...
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5031614 |
Pacemaker rate control using amplitude and frequency of activity signal
A variable rate pacemaker responsive to patient exercise senses physical activity of the patient by motion detection and generates a corresponding electrical signal. The pacemaker circuitry detects...
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5029582 |
Medical apparatus for stimulating a physiological event in a patient with a stimulation intensity automatically adapted to the physical activity of the patient and a method for adapting the stimulation intensity to the physical activity of the patient
A medical apparatus for stimulating a physiological event in a patient, with the stimulation intensity being automatically adapted to the physical activity of the patient, includes respective...
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5005574 |
Temperature-based, rate-modulated cardiac therapy apparatus and method
A temperature-based, rate-modulated cardiac pacemaker having means for variably controlling the stimulation rate of the heart according to multiple temperature characteristics of the blood...
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5000179 |
Cardiac stimulator and process for regulating this stimulator
A cardiac stimulator is provided which is controlled by the arterial temperature of a patient. The cardiac stimulator includes a stimulation element connected to an electrical cell, and a connector...
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4995390 |
Exercise responsive cardiac pacemaker
An exercise-responsive cardiac pacemaker is provided which physiologically controls the stimulation rate of a heart by sensing the venous blood temperature in the right ventricle of the heart. A...
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4945909 |
Pacemaker with activity-dependent rate limiting
A pacemaker is disclosed with a pacing rate that is restricted within a range defined by variable upper and lower rate limits that change as a function of the patient's detected level of activity....
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4905697 |
Temperature-controlled cardiac pacemaker responsive to body motion
Method and appartaus are disclosed for stimulating the heart with a pacemaker in response to a nonambient temperature of a body, which is sensed, for example, in the right ventricle of the heart....
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4886064 |
Body activity controlled heart pacer
Body activity sensors, such as termperature, motion, respiration and/or blood oxygen sensors, are positioned in a patient's body outside the pacer capsule. These sensors wirelessly transmit body...
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4870967 |
Measuring arrangement for controlling an implantable body-assist device
An implantable arrangement for operating a body-assist device, the body-assist device including circuitry for generating electrical signals and also being implanted in a patient, includes circuitry...
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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...
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4803987 |
Temperature responsive controller for cardiac pacer
A controller for variably controlling the pacing rate of a cardiac pacer responsive to temperature which includes a logic and control unit, a parameter communication unit, an analog to digital...
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4782836 |
Rate adaptive cardiac pacemaker responsive to patient activity and temperature
A stimulus generator for a stimulation rate-adaptive cardiac pacemaker has a detector for sensing a first physiological parameter in the pacemaker patient, selected on the basis that heart rate is...
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4763655 |
Frequency-controlled heart pacemaker
The stimulation frequency of a heart pacemaker is controlled dependent on a signal representative of the blood oxygen content of the patient. The blood oxygen dependent signal is generated by a...
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4726383 |
Exercise-responsive cardiac pacemaker lead
An exercise-responsive cardiac pacemaker is provided which physiologically controls the stimulation rate of a heart by sensing the venous blood temperature in the right ventricle of the heart. A...
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4722342 |
Cardiac pacer for pacing a human heart and pacing method
A cardiac pacer, which generates pacing pulses at a predetermined basic pacing rate, includes a multiplicity of body activity sensors for sensing body activity dependent on different physiological...
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4719920 |
Exercise-responsive rate-adaptive cardiac pacemaker
A temperature driven rate responsive cardiac pacemaker adapted to distinguish between physiologically determined changes of the patient's blood temperature under conditions of exercise and...
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4688573 |
Temperature driven rate responsive cardiac pacemaker
An exercise responsive cardiac pacemaker (1) has a stimulation electrode (3) for introduction into the atrium or ventricle of the heart, a temperature sensor (4) situated in proximity to the...
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4399820 |
Process and device for regulating the stimulation frequency of heart pacemakers
A process and a device for regulating the stimulation frequency of heart pacemakers are disclosed. The process comprises generating with the aid of light emitted by a light-emitting element,...
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3867950 |
FIXED RATE RECHARGEABLE CARDIAC PACEMAKER
An improved fixed-rate cardiac pacer or stimulator adapted for human implantation which utilizes, as its power source, a single, rechargeable cell battery which is recharged through the patient's...
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3800087 |
DEFORMABLE ELECTRONIC COMPONENTS AND CIRCUITS
Electric component of small overall size and low weight, the characteristic value of which is variable in that it is carried by a deformable substratum; the component is in conductivity relation...
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