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| Number | Title | Issue Date |
| 5284140 | Acrylic copolymer membranes for biosensors Homogeneous membranes are disclosed which are composed of acrylic copolymers and are capable of absorbing 10% to 50% of their dry weight of water. The copolymers include a hydrophilic component which comprises acrylic esters having a poly(ethylene oxide) ... | 02/08/1994 |
| 5284149 | Method and apparatus for determining the physical characteristics of ocular tissue A method and apparatus for determining the physical characteristics of ocular tissue is provided. A lens-less monomode fiber is caused to generate an expanding beam of monochromatic laser light into ocular tissue such that the light is scattered by the ti... | 02/08/1994 |
| 5279295 | Non-invasive oximeter arrangement A sensor includes a pair of resiliently loaded jaws for receiving a finger, the sensor including a pair of fiber optic light transmitting guides secured in fixed spaced relation to one of the jaws for sensing blood in the finger tip. A control unit includ... | 01/18/1994 |
| 5277181 | Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis The present invention relates to the noninvasive measurement of blood hematocrit and hemoglobin content using differential optical absorption of two or more wavelengths of light during blood volume changes. The method is also useful for noninvasive measur... | 01/11/1994 |
| 5273053 | Suture sleeve with lead locking device A suture sleeve for facilitating the ligature of an implanted lead to a patient's vein or underlying tissue. The suture sleeve comprises a main sleeve body having a first, longitudinal throughbore for receiving the lead. The suture sleeve is provided with... | 12/28/1993 |
| 5265615 | Method and apparatus for continuous measurement of cardiac output and SVR A method of continuously monitoring cardiac output and SVR of a patient by analyzing the blood pressure signal. The signal can be measured directly by the use of catheters placed into various arteries, in particular a radial artery or a femoral artery, or... | 11/30/1993 |
| 5261412 | Method of continuously monitoring blood pressure A method, for use in a non-invasive blood pressure monitoring system, of operating a tissue stress sensor at an off-optimum arterial applanation state. The system uses a stress sensor including a stress sensitive element for detecting stress of tissue ove... | 11/16/1993 |
| 5042495 | Pressure sensor A pressure sensor comprising a first housing piece defining a lumen therethrough and an opening to said lumen to provide communication between said lumen and a sensing element, said first housing piece having a first surface surrounding said opening, a se... | 08/27/1991 |
| 4883054 | Optical fiber break detector An apparatus for detecting a break in an optical fiber adapted for carrying optical energy such laser energy. The optical fiber has a core, a cladding concentric with and surrounding the core and a sheath concentric with and surrounding the cladding. A de... | 11/28/1989 |
| 4883067 | Method and apparatus for translating the EEG into music to induce and control various psychological and physiological states and to control a musical instrument A method and apparatus for applying a musical feedback signal to the human brain, or any other brain, to induce controllable psychological and physiological responses. A signal representing the ongoing electroencephalographic (EEG) signal of a brain prefe... | 11/28/1989 |
| 4877035 | Measurement of the end-systolic pressure-volume relation using intraaortic balloon occlusion Novel, noninvasive in vivo methods and apparatus for measuring the end-systolic pressure-volume relation and deriving peak end-systolic elastance, Emax, which do not alter intrinsic or reflex-stimulated cardiac contractility are disclosed. Afte... | 10/31/1989 |
| 4873990 | Circumferential pressure probe A probe for measuring circumferential pressures inside a body cavity. In the preferred embodiment, a urodynamic pressure measurement probe for evaluating human urinary sphincter function is disclosed. Along the length of the probe are disposed a multiplic... | 10/17/1989 |
| 4869263 | Device and method for measuring volumetric blood flow in a vessel Device for measuring volumetric blood flow in a vessel comprising a catheter having proximal and distal extremities. A balloon is carried by the distal extremity of the catheter. A balloon inflation lumen is carried by the catheter and is in communication... | 09/26/1989 |
| 4869262 | Device for displaying blood pressure A measure of diastolic blood pressure is provided by the product of HR and TT wherein HR is a measured heart beat rate and TT is an elapsed time between emission of an electrocardiographic R wave and arrival of the consequent blood pressure pulse at a cho... | 09/26/1989 |
| 4869250 | Localized cooling apparatus The flexible cooling fabric has an injector that is flat so that it can be maintained unobtrusively within the cooling fabric. The injector has a flat electromagnetic coil which surrounds an injection chamber. The chamber receives pressurized fluid, but a... | 09/26/1989 |
| 4869261 | Automatic noninvasive blood pressure monitor An automatic noninvasive blood pressure monitor with a continuous correction of the setpoint and of the gain without interruptions of the blood pressure measurement has a pressure vibration generator, the frequency of vibration being higher than that of t... | 09/26/1989 |
| 4862898 | Air flow sensor The invention contemplates an improved air flow sensor including a proximity switch which has a metal disk mounted with respect to the sensing face to be movable by air flow in the action zone of the magnetic field as between a position adjacent the sensi... | 09/05/1989 |
| 4862683 | Apparatus for harvesting berries on low plants Apparatus for harvesting berries on low plants incorporating means enabling the machine to accommodate the rugged terrain often encountered during use. The apparatus efficiently picks low bush berries such as blueberries, with a minimum of damage both to ... | 09/05/1989 |
| 4862894 | Apparatus for monitoring bloodstream An apparatus for monitoring a bloodstream in a skin surface including a laser light source for emitting a laser beam, a cylindrical lens for expanding the laser beam, an objective lens for collecting light rays reflected by the skin surface and scattered ... | 09/05/1989 |
| 4860765 | Air flow sensor The invention contemplates an improved air flow sensor including a proximity switch which has a metal disk mounted with respect to the sensing face to be movable by air flow in the action zone of the magnetic field as between a position adjacent the sensi... | 08/29/1989 |
| 4860766 | Noninvasive method for measuring and monitoring intrapleural pressure in newborns Intrapleural pressure of a newborn subject is measured by detecting relative movement between adjacently-proximate cranial bones. The preferred device for measuring such bone movements is a surface inductive plethysmographic transducer secured on the subj... | 08/29/1989 |
| 4860768 | Transducer support base with a depending annular isolation ring An improved support base for supporting a transducer used for the monitoring of uterine contractions is disclosed. A support plate is concave and has a projecting annular ring on its lower surface spaced from and surrounding the central opening in the sup... | 08/29/1989 |
| 4860754 | Electrically conductive adhesive materials Electrically conductive adhesive material possessing good adhesive, cohesive, elastomeric and conductive properties is disclosed. The present adhesive material also has improved electrical stability since it is less susceptible to drying out in most ambie... | 08/29/1989 |
| 4860764 | Air flow sensor The invention contemplates an improved air flow sensor including a proximity switch which has a metal disk mounted with respect to the sensing face to be movable by air flow in the action zone of the magnetic field as between a position adjacent the sensi... | 08/29/1989 |
| 4858619 | Intracranial pressure monitoring system A first valve has a first input port and first and second output ports with the first output port adapted for connection to a drainage collection bag. A tube connects the input port of the first valve to a patient. A second valve has an input port connect... | 08/22/1989 |
| 4854329 | Apparatus and method for noninvasive testing of voluntary and involuntary motor response patterns Apparatus and method are disclosed for providing a noninvasive testing of the status of the motor muscle response of an individual by testing specific voluntary and involuntary motor responses. The voluntary motor response is tested by having the individu... | 08/08/1989 |
| 4852580 | Catheter for measuring bioimpedance This invention is directed to an improved impedance sensing system to measure blood flow and particularly cardiac output which comprise an elongated flexible catheter having two spaced apart sensing electrodes disposed on the surface thereof formed from a... | 08/01/1989 |
| 4852581 | Pressure transducer with conductive polymer bridge A pressure transducer has a thin central portion formed of a molded thermoplastic resin. A conductive polymer forms the resistive elements of a Wheatstone bridge printed and baked onto the molded substrate.... | 08/01/1989 |
| 4852583 | Airway adapter A tubular airway adapter having a hollow interior and a cylindrical wall for providing a sample gas air flow. The adapter includes an annular channel in the cylindrical wall and a plurality of radial channels extending from the annular channel to the inte... | 08/01/1989 |
| 4850346 | Respirator Breathing equipment, e.g., a half mask-type respirator, is disclosed. A mask is provided with three ports of common dimension in any one of which inhalation or exhalation fittings housing inhalation or exhilation valves may be mounted. Disclosed are chemi... | 07/25/1989 |
| 4848357 | Nerve ending therapeutical device A nerve ending therapeutical device containing a testing circuit, an oscillating circuit, a handle and a probe. The therapeutical device has a switch on the probe to control the location of a nerve ending first. Then the switch is set to another position,... | 07/18/1989 |
| 4846191 | Device for chronic measurement of internal body pressure Measurement of a physiological pressure is accomplished by placement of a pressure transmitting catheter within a blood vessel or other structure within which pressure is to be measured. The catheter is blood-compatible, capable of withstanding handling d... | 07/11/1989 |
| 4844092 | Catheter Y-connector with guidewire locking means A Y-connector for attachment to the proximal end of a guide catheter which includes an arm projecting from the side of the Y-connector, the arm including a clamp for securing a catheter guidewire against movement relative to the guide catheter.... | 07/04/1989 |
| 4844089 | Needle for multiple vacuum blood sample devices An improved needle for multiple vacuum blood sample devices, consisting in two opposed, coplanar needles connected by an oblique member and protected by a rigid sheath such that the relevant test tube holder is not coaxial to the needle to be introduced i... | 07/04/1989 |
| 4841970 | Cryogenic rectal insert A cryogenic proctologic insert for treating hemorrhoids by lowering the surface temperature of the affected portion of the rectal canal. The insert is formed of a tubular plastic portion filled with a congealable fluid. Extended heat transfer surfaces are... | 06/27/1989 |
| 4841986 | Method and apparatus for measuring intracranial fluid pressure Intracranial fluid pressure is measured as a function of a characteristic or characteristics of an eardrum. Either or both of the displacement of the eardrum when the stapedius muscle is stimulated or the aural acoustic compliance of the eardrum is measur... | 06/27/1989 |
| 4841981 | Catheters for measurement of cardiac output and blood flow velocity A catheter introduced into the pulmonary artery for use in measuring cardiac output or blood flow velocity includes temperature sensing device including a temperature sensing element for sensing the temperature of blood in the pulmonary artery diluted by ... | 06/27/1989 |
| 4841982 | Plethysmographic measuring chamber The chamber comprises a tubular body terminating in front in a part shaped as a truncated rectangular cone. Two elastomeric rings are for adjusting around the snout of an animal, such as a rat or guinea pig. A piston bounds the space occupied by the anima... | 06/27/1989 |
| 4840183 | Electrocardiograph A displacement sensor for an electrocardiograph attaches a permanent magnet chip directly on a living body, and movement or vibration of the living body is sensed by measuring flux by said magnet. The electrocardiograph has a magnet assembly having an adh... | 06/20/1989 |
| 4840181 | Sphygmomanometer adopting recognition of korotkoff sounds A sphygmomanometer includes a pump for applying variable pressure to a blood vessel, a microphone for sensing oscillation which is produced from the blood vessel being pressurized by the pump, a pressure detecting section for sensing the pressure being ap... | 06/20/1989 |
