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8099146 |
System and method for calibrating a blood oxygen saturation sensor for use with an implantable medical device
Techniques are provided for the self-calibration of an implantable blood oxygen saturation sensor. In one example, the pacemaker tracks respiration rate, patient activity level and the degree of...
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8095123 |
Wireless communication system
A wireless communication system includes a first device having a communications control circuit configured to initiate transmission of a wireless communication signal, and a second device including...
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7908334 |
System and method for addressing implantable devices
A system includes multiple slave devices implanted in a human body, wherein each slave device includes a communication module operable to receive transmitted communications and is associated with a...
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7840246 |
Implantable self-calibrating optical sensors
A measurement light detector detects light transmitted by a light source of an implantable system that is scattered back into an implantable housing, and produces a measurement signal indicative of...
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7783338 |
Catheter with optical fiber sensor
An apparatus and method to perform therapeutic treatment and diagnosis of a patient's vasculature through the use of an intravascular device having an optical fiber disposed therein. In an...
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7738936 |
Methods and systems for reducing data acquisition, power and/or processing for pulse oximetry applications
Systems and methods are provided for obtaining measures of blood oxygen saturation using an implantable device implanted within a patient and a non-implanted device external to the patient, while...
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7729735 |
System and method for venous oximetry using a catheter
This invention provides a system and method for confirming the proper placement of a penetrating catheter into a vascular compartment without undesirable arterial cannulation using principles of...
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7615010 |
System for monitoring the physiologic parameters of patients with congestive heart failure
A telemetric sensing system for monitoring physiological parameters for diagnosis and treatment of congestive heart failure in a patient. This system includes one or more implantable sensing...
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7512431 |
Normalization method for a chronically implanted optical sensor
A system and method are provided for estimating blood oxygen saturation independent of optical sensor encapsulation due to placement in blood, where the blood includes a blood flow characteristic...
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7469158 |
Fetal oximetry system and sensor
An optical measuring device having multiple optical paths between one or more light emitters and one or more light detectors and/or providing at least two sets of wavelength of light along at least...
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7460896 |
In vivo device and method for collecting oximetry data
An in vivo device and a method for collecting and measuring oximetry data in a body lumen, such as using a swallowable capsule. The in vivo device may include instruments for collecting oximetry...
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7329223 |
Catheter with optical fiber sensor
An apparatus and method to perform therapeutic treatment and diagnosis of a patient's vasculature through the use of an intravascular device having an optical fiber disposed therein. In an...
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7149562 |
Needle with fiberoptic capability
A needle with fiber optic capability for spectrophotometric analysis includes a needle assembly including a needle body having an open tip and side radiation ports. A fiber optic element is...
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7120481 |
Probe and apparatus for measuring cerebral hemodynamics and oxygenation
A probe and an apparatus for cerebral diagnostics and therapy, in particular for measuring absolute values of regional cerebral flow (CBF) and cerebral oxygenation. The probe is inserted through a...
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6961600 |
Transbronchial reflectance oximetric measurement of mixed venous oxygen saturation, and device therefor
Provided are methods and a system for the transbronchial reflectance oximetric measurement of mixed venous oxygen saturation in the pulmonary artery of a patient, and a device therefor. Thus,...
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6819951 |
Peripherally inserted central catheter with continuous central venous oximetry and proximal high flow port
A peripherally inserted central catheter includes three lumens that communicate with its proximal end. A large lumen terminates short of the distal end of the catheter and is used for the infusion...
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6626835 |
Infrared sensor stabilizable in temperature, and infrared thermometer with a sensor of this type
The present invention relates to an infrared sensor adapted to be stabilized in temperature and an infrared thermometer with an infrared sensor adapted to be stabilized in temperature, more...
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6529753 |
Fetal probe
A fetal probe has an inflatable sac which wedges between the presenting fetal part and maternal tissues to hold a fetal sensor in position. The fetal probe is short enough to enable insertion with...
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6298253 |
Method and device for measuring the absorption of radiation in a portion of tissue
Device and method for measuring the absorption of radiation in a portion of tissue. For monitoring tissue and/or in order to permit medical indications, it is necessary to gather parameters...
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6198952 |
Multiple lens oxygen sensor for medical electrical lead
An implantable sensor assembly for use with an implantable medical device are disclosed. The sensor assembly preferably includes two or more physiologic sensors coupled to the medical device via a...
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6186945 |
Elongate fetal probe with expandable means on distal end
A fetal probe with an elongate body and fetal sensor for insertion above the presenting part of the fetus. An expandable means is on the distal end of the body of the sensor for urging the sensor...
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6144866 |
Multiple sensor assembly for medical electric lead
An implantable sensor assembly for use with an implantable medical device are disclosed. The sensor assembly preferably includes two or more physiologic sensors coupled to the medical device via a...
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6134459 |
Light focusing apparatus for medical electrical lead oxygen sensor
An implantable sensor assembly for use with an implantable medical device are disclosed. The sensor assembly preferably includes two or more physiologic sensors coupled to the medical device via a...
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6125291 |
Light barrier for medical electrical lead oxygen sensor
An implantable sensor assembly for use with an implantable medical device are disclosed. The sensor assembly preferably includes two or more physiologic sensors coupled to the medical device via a...
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6125290 |
Tissue overgrowth detector for implantable medical device
An implantable sensor assembly for use with an implantable medical device are disclosed. The sensor assembly preferably includes two or more physiologic sensors coupled to the medical device via a...
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6104941 |
Physiological sensor
The combination of a pressure control and a catheter including an elongate member, a sensor mounted on the catheter and adapted to be placed in pressure engagement with tissue for sensing signals...
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6036654 |
Multi-lumen, multi-parameter catheter
A multi-lumen catheter capable of measuring cardiac output continuously, mixed venous oxygen saturation as well as other hemodynamic parameters. The catheter is also capable of undertaking...
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5916153 |
Multifunction catheter
A modified Foley type catheter has a pressure sensor near the insertion end, an inflatable balloon, a temperature sensor, a light emitter, and a blood oxygen level detector near the light emitting...
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5916155 |
Fetal sensor with securing balloons remote from optics
An oximeter sensor with an expandable element for positioning the sensor against the fetus. The expandable element is positioned to be removed from at least one of the emitter and detector so that...
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5817009 |
Arrangement for noninvasive determination of the oxygen saturation in human blood vessels or organs
Arrangement for determining the oxygen saturation in human blood vessels and organs with a measurement sensor with at least two light sources of different wavelengths--preferably wavelengths of 660...
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5743260 |
Fetal pulse oximetry apparatus and method of use
An intrauterine pulse oximetry apparatus and method are provided to measure fetal blood oxygen saturation at sites in a preferred region on the fetus. The sensor of the apparatus is attached to a...
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5673694 |
Method and apparatus for continuous measurement of central venous oxygen saturation
An apparatus (10) and method for measurement of oxygen saturation of venous blood for use with a central venous catheter (60) are described. The apparatus (10) includes a fiber optic bundle (12)...
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5601087 |
System for diagnosing tissue with guidewire
The present invention provides a guidewire which incorporates an optical fiber and associated diagnostic apparatus for diagnosing tissue in vivo. Use of the present invention provides for diagnosis...
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5470307 |
Catheter system for controllably releasing a therapeutic agent at a remote tissue site
A catheter having a therapeutic agent chemically bonded to a substrate on its exterior surface using a linker which photolytically releases the agent upon exposure to light energy at an appropriate...
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5419322 |
Internal apparatus for continuous electrical and oximetric intrapartum monitoring of the fetus
An internal apparatus for continuous electrical and oximetric intrapartum fetal monitoring includes a base assembly containing a photodetector and a single spiral probe extending from the base...
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5377673 |
Intrauterine monitoring device
An improved fetal monitoring device which incorporates sensors which permit the monitoring of inutero fetal heart rate, oxygen saturation, blood chemistry and eliminates the collection of such...
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5357954 |
Optical blood oxygen saturation probe for insertion into the esophagus
A blood oxygen saturation sensor or oximeter is mounted to a probe for insertion into the esophagus of a patient. The sensor includes a set of optical transmission elements and an optical detector...
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5333609 |
Catheter and probe-catheter assembly
An assembly for insertion into the cardiovascular system of a patient comprising a catheter having first and second lumens and a distal port. The first lumen opens at the distal port. A probe is...
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5205281 |
Oral airway with oximetry means
The present invention discloses an oral airway for insertion within a surgical patient's mouth and over the patient's tongue for preventing blockage of the pharynx during surgical and like...
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5193542 |
Peripartum oximetric monitoring apparatus
An oximeter probe is introduced through the vaginal canal and applied to the scalp or other readily accessible part of the fetus while still in utero. The fetal oxygenation is monitored during the...
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5186173 |
Method for in vivo measurement of oxygen concentration levels
A method for in vivo measurement of oxygen concentration levels in animal bodily fluids or tissues comprises administering a biocompatible fluoroescent probe sensitive to oxygen quenching and...
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5154175 |
Intrauterine fetal EKG-oximetry cable apparatus
An apparatus including an organization to process signals regarding information to pulse rate and oxygen saturation of arterial blood flow in a fetus. The organization includes guide cable...
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5127407 |
Epidural oxygen sensor
A sensor for measuring the oxygen saturation of blood flow within the skull is described. In a first embodiment the sensor comprises a photodetector and a pair of light emitting diodes surface...
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4598715 |
Instrument for spectral measurement in the bloodstream
In an instrument for spectral measurement in the bloodstream, the light-guide probe is developed with a diameter of, at most, 0.5 mm. By plug connections with precisely defined positions of the...
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4416285 |
Improved optical catheter and method for making same
Catheter apparatus having transmitting and receiving optical fibers for photometric analysis of a fluid eliminates the need for individually calibrating each catheter within a population of...
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4295470 |
Optical catheters and method for making same
Catheter apparatus having transmitting and receiving optical fibers for photometric analysis of a fluid eliminates the need for individually calibrating each catheter within a population of...
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4114604 |
Catheter oximeter apparatus and method
An improved catheter oximeter operates on radiation at three or more different wavelengths applied to and scattered back from blood under test to provide an indication of oxygen saturation and is...
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3136310 |
Optical catheter
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3068742 |
Means for performing colorimetry
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3068739 |
Flexible optical probe
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