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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7373196 | Physiological signal detection module, multi-channel connector module and physiological signal detection apparatus using the same Provided is a physiological signal detection module which has a heating member and a multi-channel connector. The heating member maintains an electrode's contact with a user skin at a constant temperature, and the multi-channel connector module for electrical connec... | 05/13/2008 |
| 7282818 | Power hand tool having a proximity detector The present invention provides a power tool with a hand proximity detector to detect the hand of an operator and a trigger circuit operable with the detector to control the operation of a light in the housing or to provide a safety lockout function. One embodiment i... | 10/16/2007 |
| 7244251 | Implanted surgical drain with multiple sensing elements for monitoring internal tissue condition The present invention is directed to devices and methods of using a surgical drain, and more particularly to 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 sur... | 07/17/2007 |
| 7215988 | Sensor for measuring tissue perfusion The invention relates to a method and a sensor for measurement of tissue perfusion. The sensor is provided with a reservoir (4) for a fluid or gaseous tracer and a tracer-permeable barrier (3), a sub-surface of which is in contact with the surrounding ... | 05/08/2007 |
| 7211043 | Method, system and device for evaluating skin type A method, device and system for determining skin type. The method includes a step of applying at least one drop of substance onto a zone of the skin or on a collector member previously in contact with the zone of the skin. The substance can modify at least one physi... | 05/01/2007 |
| 6718055 | Temporal and spatial correction for perfusion quantification system A medical imaging system includes an imaging device for producing temporally spaced image representations, a memory for storing the image representations, and a processor. The processor aligns the image representations by iteratively deriving a transform between pro... | 04/06/2004 |
| 5701904 | Telemedicine instrumentation pack The invention concerns a portable medical diagnostic apparatus which includes three types of data-gathering instruments: (1) visual instruments (eg, otoscope, ophthalmoscope, rhino-laryngoscope, macro lens and fundus camera); (2) an audio instrument (eg, ... | 12/30/1997 |
| 4601293 | Temperature control system for cutaneous gas monitor A temperature control system for an electrically heated cutaneous gas sensor. A closed loop temperature control circuit varies the current through the heating element, in accordance with the sensed temperature of the sensor, to maintain the sensor at a te... | 07/22/1986 |
| 4539994 | Method for transcutaneous measurement of a blood parameter and an electrochemical measuring electrode device for carrying out the method In accordance with the principles for transcutaneous measurement of a blood parameter, such as the partial pressure of a blood gas, an electrochemical measuring electrode device (1) is applied to the skin surface (2) of a person. The electrode device has ... | 09/10/1985 |
| 4534356 | Solid state transcutaneous blood gas sensors Disclosed is a solid state oxygen sensor utilizing a noble metal first electrode and a silver/silver halide reference electrode and an oxygen permeable polymeric membrane electrolyte. Also disclosed is a method of producing said sensor and a method of usi... | 08/13/1985 |
| 4517982 | Sensing device for cardio-pulmonary functions A sensor for use in detecting cardiopulmonary functions employs a skin-heating conductive surface for use in achieving vasodilitation for the measurement of PO2 and PCO2. The same surface is employed as an electrode for a heartbeat a... | 05/21/1985 |
| 4458686 | Cutaneous methods of measuring body substances Cutaneous methods for measurement of substrates in mammalian subjects are disclosed. A condition of the skin is used to measure a number of important substances which diffuse through the skin or are present underneath the skin in the blood or tissue. Acco... | 07/10/1984 |
| 4432365 | Physiological sensing unit Disclosed herein is a physiological, electrically heated, thermostatically controlled sensing unit of the type used in the medical field for measuring blood contents, such as oxygen. A typical unit comprises a housing for application to the skin of a livi... | 02/21/1984 |
| 4407291 | Transcutaneous blood oxygen measuring device A transcutaneous blood oxygen measuring device is disclosed for the noninvasive measurement of oxygen partial pressure in arterial blood which includes a cathode surrounded by an anode held together by an insulating plastic in an electrode part, a heating... | 10/04/1983 |
| 4401122 | Cutaneous methods of measuring body substances Cutaneous methods for measurement of substrates in mammalian subjects are disclosed. A condition of the skin is used to measure a number of important substances which diffuse through the skin or are present underneath the skin in the blood or tissue. Acco... | 08/30/1983 |
| 4396017 | Transcutaneous gas sensor A transcutaneous gas sensor for application to the body surface of a patient is provided. The sensor includes a sensing electrode having an exposed surface region which, in use, is applied to the body surface of the patient with an electrolyte layer betwe... | 08/02/1983 |
| 4334541 | Thermal protective circuit for a hyperemia-inducing physiological sensor A sensor for transcutaneous measurement of physiological phenomena of living tissues is provided with a thermostatically-controlled electric heater. The purpose of the heater is to induce local hyperemia to enable operation of the sensor. The heater is th... | 06/15/1982 |
| 4312332 | Oxygen sensing Oxygen sensing as disclosed herein is performed by applying a solid state, self-heating sensor to the patient's skin. A noble metal cathode and a thick-film reference electrode are provided on the front face of a thin flat substrate employed in the sensor... | 01/26/1982 |
| 4311151 | Oxygen measuring electrode assembly A polarographic electrode assembly for transcutaneous measurement of partial oxygen pressure in arterial blood comprising an anode, a cathode which has a thin ring surface or a circularly-bounded field of dot-shaped surfaces and an insulating electrode ho... | 01/19/1982 |
| 4303076 | Probe for transcutaneous sampling A probe for transcutaneous blood gas analysis composed of a housing (10) and a cap (18) which are assembled together by a snap-fit. The housing (10) holds an electrode unit (38, 40, 42) and the cap (18) carries a membrane (30) which spans an opening (20) ... | 12/01/1981 |
| 4296752 | Transcutaneous oxygen sensor with adjacent heater A transcutaneous gas sensor for application to the skin of a patient for bloodless measurement of a partial gas pressure comprises a separable sensing cell and a circumferential heater, the heater being in direct thermal contact with the skin of the patie... | 10/27/1981 |
| 4290431 | Transcutaneous oxygen and local perfusion measurement An apparatus and method for measuring and monitoring blood oxygen content and local perfusion factor. A transcutaneous gas measurement probe is heated by application of an electric current to a semi-conductor device housed therein. The heat developed in a... | 09/22/1981 |
| 4265250 | Electrode An electrode for measuring gas concentration in blood and having a disposable, skin-contact assembly installed in a reusable base; the disposable assembly includes an anode, cathode, electrolyte, and membrane, and the base includes a heater and means for ... | 05/05/1981 |
| 4252123 | Device for the transcutaneous electrochemical determination of the partial oxygen pressure in blood A device for the transcutaneous electrochemical determination of the partial oxygen pressure in blood, comprising a measuring head which includes at least three measuring cells of the Clark-type, comprising periodically actuated heating elements, the actu... | 02/24/1981 |
| 4197853 | PO2 /PCO2 sensor This invention relates to an electrochemical sensor system for the simultaneous and continuous measurement of the partial pressure of oxygen PO2 and carbon dioxide partial pressure PCO2 in fluids. The electrochemical sensor of the pr... | 04/15/1980 |
| 4185620 | Oxygen measuring electrode assembly An oxygen measuring electrode assembly for measuring an oxygen partial pressure in arterial blood in which a cylindrical anode and cathode are disposed coaxially in an insulator in such way that the former is placed in the latter. The end surfaces of said... | 01/29/1980 |
