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| Number | Title | Issue Date |
| 7826880 | Electrochemical sensor for in-vivo or ex-vivio measurements of the carbon dioxide partial pressure of living tissue A physiological sensing device for the measurement of pCO2 includes a closed chamber bounded, at least partially, by a carbon dioxide permeate e membrane (12). There are two electrodes (10) within the chamber. The chamber contains a substantially elect... | 11/02/2010 |
| 7359743 | System for monitoring and calculating integrated tissue pH A system for monitoring tissue pH calculates and displays integrated pH values over one or more user-selectable integration time periods. The values can be displayed in a numerical and/or graphical format. In the graphical format, measured values of pH are displayed... | 04/15/2008 |
| 7333844 | Uterine tissue monitoring device and method The invention provides a devices, methods and systems to measure and record uterine tissue environment components such as pH during the course of uterine artery occlusion. The uterus becomes ischemic due to the occlusion thereof, and its pH drops sharply within minu... | 02/19/2008 |
| 7326186 | Injector system and fluid control device providing sharp bolus injection An injector system includes a source of injection fluid, a pump device, a fluid path set disposed between the source of injection fluid and the pump device, and a fluid control device operatively associated with the fluid path set. The fluid control device is adapte... | 02/05/2008 |
| 7322943 | Apparatus and method for the multi-axial placement of surgical fasteners Several embodiments of a penetration apparatus and methods for using the same during a surgical procedure are disclosed. The penetration apparatus comprises a thin elongated body having a first end, a second end, and a central longitudinal axis extending there betwe... | 01/29/2008 |
| 7162289 | Method and apparatus for enhancing the integrity of an implantable sensor device A method and apparatus for enhancing the integrity of an implantable sensor. Voids formed between an outer tubing and a sensor substrate or spacing element may be back-filled with a curable, implantable material, minimizing the extent to which unwanted fluids diffus... | 01/09/2007 |
| 6969347 | Apparatus and method for the measurement of the resistance of the urethral sphincter A urinary apparatus includes a catheter system for pressurizing either a bladder cavity or a urethral canal within a female urinary system and an endoscope device for observing a urethral sphincter muscle within the female urinary system for assessing the sling tens... | 11/29/2005 |
| 6936147 | Hybrid film type sensor A miniaturized gas sensor comprised of thick- or thin-film type electrodes, on a non-conductive supportive substrate, and in contact with a solid ionomer electrolyte, for the detection of toxic gases, i.e., carbon monoxide, and other oxidizable or reducible gases an... | 08/30/2005 |
| 6915147 | Sensing apparatus and process A sensing apparatus with a connector, a sensor lead and a sensor module with a spacer placed over electrodes that have been deposited on a substrate. The spacer may have a space for receiving an enzyme. End portions of the sensor module may be encapsulated, such as ... | 07/05/2005 |
| 6654622 | Device for the combined measurement of the arterial oxygen saturation and the transcutaneous CO2 partial pressure on an ear lobe A device for the combined measurement of the arterial oxygen saturation and the transcutaneous CO2 partial pressure on an ear lobe comprises a sensor. The sensor has means for pulse oximetric measurement of the arterial oxygen saturation, means... | 11/25/2003 |
| 6473708 | Device and method for self-verifying temperature measurement and control A measuring instrument includes a first temperature sensor, a second temperature sensor and circuitry. The first and second temperature sensors each generate a signal indicative of the temperature of a medium being detected. The circuitry is configured to... | 10/29/2002 |
| 6432051 | Tonometric measuring head and measuring method The invention relates to a tonometric measuring head for bringing a measuring medium to a composition consistent with an individual to be examined non-invasively through the outermost tissue layer. A measuring head comprises a sealed chamber, having a wal... | 08/13/2002 |
| 6411834 | Biological sensor An annul protecting portion 23 having a thickness larger than the thickness of a sensor sensitive portion 1 is provided in such a manner as to surround the sensor sensitive portion 1, the sensor sensitive portion 1 together with the protecting portion 23 ... | 06/25/2002 |
| 6287452 | Electrode for the electrochemical detection of nitric oxide Nitric oxide-specific electrodes are useful for in situ detection of nitric oxide in biomedical applications and have at least a surface region thereof which is capable of forming complexes with nitric oxide, for example, nitrosyl complexes. The nitric ox... | 09/11/2001 |
| 6280604 | Electrode materials, systems and methods for the electrochemical detection of nitric oxide Nitric oxide-specific electrodes are useful for in situ detection of nitric oxide in biomedical applications and have at least a surface region capable of forming complexes with nitric oxide. The nitric oxide complexes formed at the surface of the electro... | 08/28/2001 |
| 6238339 | Remote sensing tonometric catheter apparatus and method An improved remote sensing tonometric catheter apparatus (20) and method for sampling of a fluid or gas property of interest in a hollow internal organ. The tonometric catheter (20) assists in early detection of the problems of stress ulceration and/or in... | 05/29/2001 |
| 6216023 | Method and apparatus for determining differences between regional CO2 and systemic CO2 measurements Methods and apparatus for determining the difference between a regional CO2 partial pressure of a selected body organ of a mammalian subject, such as the gut, and a systemic CO2 partial pressure of the subject. The regional CO2 | 04/10/2001 |
| 6216024 | Method and device for assessing perfusion failure in a patient Methods and devices are provided for assessing impairment of blood circulation in a patient, such as that in perfusion failure, by measurement of pCO2 (partial pressure of carbon dioxide) in the upper digestive and/or respiratory tract of the p... | 04/10/2001 |
| 6143150 | Biological gas sensor A biological gas sensor for measuring a carbon dioxide partial pressure in an alimentary canal while excluding the influences of hydrogen sulfide and/or weak acid is disclosed. The gas sensor comprises a sensor which has in the sensitive part thereof a bi... | 11/07/2000 |
| 6134462 | Method and apparatus for analyzing a sample An apparatus and a method for analyzing a compound to be drawn from a patient's organ. The apparatus comprises a sampling element having a wall which a compound to be analyzed is capable of penetrating. The apparatus also includes a pressure-difference pr... | 10/17/2000 |
| 6055447 | Patient CO2 Measurement A method and apparatus are provided for assessing impairment of blood circulation of a patient by measurement of PCO2 (partial pressure of carbon dioxide) in the upper digestive/respiratory tract of the patient. The method includes introducing ... | 04/25/2000 |
| 6029076 | Remote sensing tonometric catheter method The method is accomplished by introducing the catheter (20) into the organ such that the sampling chamber (40) is disposed at a portion of the wall of the organ. The sampling chamber (40) is left in position at the wall of the organ for a time sufficient ... | 02/22/2000 |
| 6010453 | Tonometric catheter combination A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed. The device is capable of monitoring certain critical fluid properties of interest, such as oxygen gases and carbon dioxide gases in the wal... | 01/04/2000 |
| 5957839 | Apparatus and method for continuous monitoring of tissue gas composition and pH using recirculating gas tonometry A tonometry catheter apparatus comprises an elongate, flexible, multilumen tube having a proximal end to be positioned outside the human body and a distal end to be positioned within a portion of the human body. Provided at the distal end are an ingress l... | 09/28/1999 |
| 5921922 | Measuring of bloodgases A method and an equipment for determining components, particularly pH, pO2 and pCO2 in blood. In order to facilitate the determination of blood gases, one sensor is used for measurement of more than one component. The components are... | 07/13/1999 |
| 5848965 | Method and a system for the determination of pH and other fluid parameters utilizing a metal monocrystalline electrode A method and system for the determination of the pH of a fluid by measuring the pH of the fluid and thereafter correcting the pH based upon the determination of measured and/or adjusted values of at least one other parameter, such as PO2 and PC... | 12/15/1998 |
| 5655529 | Blood gas probe A blood gas monitoring system monitors blood gas from blood in a blood vessel. A blood probe is introduced into the blood vessel. The blood probe includes a probe body defining a probe chamber and a first gas permeable membrane coupled to a first end of t... | 08/12/1997 |
| 5596988 | Multi-parameter sensor apparatus A multi-parameter catheter comprising sensors enveloped in a sheath made from a biphasic material comprising a layer of microporous hydrophobic substance having micropores which are filled with a hydrophilic substance which when hydrated forms a gel and a... | 01/28/1997 |
| 5579763 | Measurement of systemic perfusion A method is described for assessing perfusion failure of a patient by measurement pCO2 (partial pressure of carbon dioxide) in the digestive system of the patient. The method includes introducing a catheter (10, FIG. 1) through the nasal passag... | 12/03/1996 |
| 5511547 | Solid state sensors A stabilized bio-inert sensor for the determination of an analyte, especially pO2, pCO2 and pH, in a medium which comprises a chemical indicator sensitive to the analyte in association with a stabilizing substrate formed from a polym... | 04/30/1996 |
| 5505828 | Calibration solutions useful for analysis of biological fluids and methods employing same Novel calibration solutions are provided which are useful, for example, with sensor assemblies used for analysis of CO2, and optionally, for concurrent analysis of O2, especially in combination infusion fluid delivery/blood chemistry... | 04/09/1996 |
| 5456251 | Remote sensing tonometric catheter apparatus and method A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed in combination with a secondary apparatus, such as a urinary catheter, a nasogastric sump apparatus, or a feeding tube, for example. The dev... | 10/10/1995 |
| 5284570 | Fluid sample analyte collector and calibration assembly A fluid sample collector, sensing, and calibration device contains a collector like a syringe, with one or more analyte sensors, and a calibrator for calibrating the sensor. These can be pre-assembled and are particularly adapted to be disposable after a ... | 02/08/1994 |
| 5186172 | Remote sensing tonometric catheter apparatus A tonometric device for use in hollow viscus tonometry and remote sensing of patient fluid parameters is disclosed. The device is capable of monitoring certain critical fluid properties of interest, such as oxygen gases and carbon dioxide gases in the wal... | 02/16/1993 |
| 5184618 | Blood gas parameter measuring system A system for invasive measuring of blood gas parameters, such as pH, pO2 or pCO2 , or for measuring other parameters influencing the time constant of the excited state of a fluorescent dye, comprises a light generation device includi... | 02/09/1993 |
| 5134998 | System and method for predicting the value of a compositional parameter of blood A system for determining the value of a compositional parameter of blood, including a sensor for producing a signal related to the value of the compositional parameter. A computer analyzes the signal and produces an output representing the value of the co... | 08/04/1992 |
| 5093266 | Sensor system A sensor system for determining the pH or carbon dioxide concentration of a liquid medium comprising, in combination, a pH-insensitive fluorescent indicator and a PH-sensitive fluorescent indicator which act in concert or a single fluorescence indicator w... | 03/03/1992 |
| 4930506 | Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood The combined sensor with a thermostatted heating device (7, 23) for the simultaneous and continuous transcutaneous measurement of oxygen (O2) and of carbon dioxide (CO2) in the blood contains a measuring device (1) for the partial pr... | 06/05/1990 |
| 4840179 | Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood The combined sensor with a thermostatted heating device (7, 23) for the simultaneous and continuous transcutaneous measurement of oxygen (O2) and of carbon dioxide (CO2) in the blood contains a measuring device (1) for the partial pr... | 06/20/1989 |
| 4834101 | Catheter-type electrochemical sensors A dual lumen CO2 catheter is formed of medical grade dual lumen silicone rubber tubing which has been impregnated with tridodecyl amine. The silicone tubing is gas permeable, and an external reference electrode is used to monitor the potential ... | 05/30/1989 |
