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| Number | Title | Issue Date |
| 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 pulmonary edema with the patient. The pacemaker identifies periods of t... | 01/17/2012 |
| 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 the intensity of the light detected by the measurement light detecto... | 11/23/2010 |
| 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 limiting the amount of processing that need be performed by the implan... | 06/15/2010 |
| 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 oximetry in which blood from the penetrated region is subjected to ligh... | 06/01/2010 |
| 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 data, for example an illuminator and an oximetry data detector. ... | 12/02/2008 |
| 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 embodiment, the apparatus includes an intravascular device to perform a thera... | 02/12/2008 |
| 7322971 | Surgical drain with sensors for monitoring internal tissue condition by transmittance Devices and methods of using a surgical drain, and more particularly a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the surgical drain is placed. Modifications may... | 01/29/2008 |
| 7209605 | Packaged optical sensors on the side of optical fibers The present invention concerns an optical sensor located on a preferred azimuthal portion of the side of an optical fiber. An optical fiber having two opposite ends, a core and a cladding and at least one sensing area is disclosed. Each of the sensing areas is locat... | 04/24/2007 |
| 7206621 | Pulse oximeter In a pulse oximeter for obtaining an oxygen saturation in a blood, a light emitter irradiates a living tissue with light beams having five different wavelengths. A light receiver receives respective light beams reflected from or transmitted through the living tissue... | 04/17/2007 |
| 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 disposed in the needle assembly for carrying electromagnetic radiation to th... | 12/12/2006 |
| 7142910 | Methods of indirectly stimulating the vagus nerve with an electrical field Controlled cessation of heart beat during coronary bypass surgery and other cardiac surgeries on a beating heart improves surgical technique, and is achieved typically by electrical stimulation of the vagus nerve and administration of a combination of drugs. ... | 11/28/2006 |
| 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 burr hole in the skull and comprises illuminating device, light recei... | 10/10/2006 |
| 7062306 | Spectroscopy illuminator with improved delivery efficiency for high optical density and reduced thermal load An improved illuminator for generating broadband light, and for delivering the light to a sample with an improved delivery efficiency, for higher optical density and/or reduced thermal transfer, than achieved with conventional halogen bulb sources. The illuminator e... | 06/13/2006 |
| 7010337 | Method and apparatus for monitoring blood condition and cardiopulmonary function Sensors located on a sensor carrier are placed adjacent one or more of a surgical patient's major thoracic blood-containing structures such as the aorta or pulmonary artery, and characteristics of blood in the blood-containing structures are determined noninvasively... | 03/07/2006 |
| 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, provided is a quick, minimally invasive, method and system for determining... | 11/01/2005 |
| 6944488 | Normalization method for a chronically implanted optical sensor A system and method are provided for accurately estimating blood oxygen saturation independent of tissue encapsulation of the optical sensor. The method includes determining a tissue overgrowth correction factor that accounts for the optical properties of the tissue... | 09/13/2005 |
| 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 of fluids into the venous system. A second lumen terminates at the di... | 11/16/2004 |
| 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 particularly, a clinical thermometer for temperature measurement ... | 09/30/2003 |
| 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 the amniotic membrane intact. A passage extends through th... | 03/04/2003 |
| 6370409 | Positioning method for pulse oximetry fetal sensor 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 stiff cable which can be inserted into the uterus past the ... | 04/09/2002 |
| 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 allowing an assessement of the condition of the tissue, especiall... | 10/02/2001 |
| 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 pair of lead conductors, or alternatively an oxygen sensor... | 03/06/2001 |
| 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 into engagement with the fetus. The expandable means has a ... | 02/13/2001 |
| 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 pair of lead conductors, or alternatively an oxygen sensor... | 11/07/2000 |
| 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 pair of lead conductors, or alternatively an oxygen sensor... | 10/17/2000 |
| 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 pair of lead conductors, or alternatively an oxygen sensor... | 09/26/2000 |
| 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 pair of lead conductors, or alternatively an oxygen sensor... | 09/26/2000 |
| 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 resulting from physiological phenomena and an expandable me... | 08/15/2000 |
| 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 therapeutic operations such as drug infusion and cardiac pacing. T... | 03/14/2000 |
| 5961452 | Positioning method for pulse oximetry fetal sensor 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 stiff cable which can be inserted into the uterus past the ... | 10/05/1999 |
| 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 the portion of the sensor adjacent the emitter or detector... | 06/29/1999 |
| 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 means, all molded into the catheter tube wall. The oxygen ... | 06/29/1999 |
| 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 nm and 940 nm--and with at least one receiver which recei... | 10/06/1998 |
| 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 stiff cable which can be inserted into the uterus past the ... | 04/28/1998 |
| 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) having a distal end (14) and a proximal end (16). The fiber ... | 10/07/1997 |
| 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 of tissue and tailoring of the therapeutic portion of the... | 02/11/1997 |
| 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 wavelength. The linker is attached to the substrate via a... | 11/28/1995 |
| 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 assembly, which probe penetrates a fetal scalp. The probe cont... | 05/30/1995 |
| 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 information during maternal contractions.... | 01/03/1995 |
| 5368026 | Oximeter with motion detection for alarm modification A pulse oximeter which modifies the alarm condition when motion is detected. Basically, if the lack of a pulse is determined to be as a result of motion artifact, the generation of an alarm is postponed. In addition, the display indicates that motion is p... | 11/29/1994 |
