Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >
Match Document Document Title
5113868 Ultraminiature pressure sensor with addressable read-out circuit  
A capactive pressure sensor suitable for making highly sensitive, low pressure measurements is disclosed. The sensor may be mounted into a 0.5 mm OD catheter suitable for multipoint pressure...
5107847 Fiber-optic transducer apparatus  
A fiber-optic transducer apparatus, and a related method of manufacturing it, for particular use in medical applications such as invasive blood pressure and body temperature measurement. The...
5105820 Disposable pressure transducer apparatus  
A disposable pressure transducer for measuring fluid pressure, which includes a sensor assembly in a housing. The housing includes a fluid chamber and a sensor-accommodating chamber which are...
5103832 Biological pressure transducer zeroing and levelling reference apparatus  
A medical pressure measurement device which employs a reference transducer linked to an atmospheric pressure sensitive device while also connected in immediate proximity to a single or several...
5097841 Disposable pressure transducer and disposable pressure transducer apparatus  
A disposable pressure transducer for measuring fluid pressure, which includes a sensor assembly in a housing. The housing includes a fluid chamber and a sensor-accommodating chamber which are...
5085223 Miniaturized pressure sensor having means for protection of diaphragm  
A miniaturized transducer for in vivo measurements of physiological pressure has a transducer unit and an inner tube with a wall opening. A diaphragm covers the wall opening. Distinguishing for the...
5050297 Method for assembly of a directly exposed catheter sensor on a support tip  
A catheter sensor assembly and support has a member with a distal end and a proximal extension joined by an intermediate part. An open passage extends along the proximal extension and across the...
5048532 Method and apparatus for measuring blood pressure  
A method and appartus are provided for measuring left atrial pressure by inserting a sensing probe into the esophagus and positioning the probe so that pressure from the left atrium is sensed by...
5048531 Pressure sensors and manufacture thereof  
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...
5046497 Structure for coupling a guidewire and a catheter  
A method and system for introducing one or more devices into a biological fluid vessel. The system includes a device having a coupling structure comprising a pair of spaced-apart fingers adapted...
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...
5040536 Intravascular pressure posture detector  
Apparatus and method for detecting changes in the posture of a patient. Two pressure sensors are chronically implanted at different places in the cardiovascular system. One may be positioned in the...
5018529 Miniaturized sensor for physiological pressure measurements  
Miniaturized sensor for physiological pressure measurements in situ, including an elastic sleeve (1) with a diaphragm portion through which the hydrostatic pressure is transmitted as a force acting...
5005584 Fiber optic pressure transducer  
A fiber optic transducer utilizing a flexible membrane to transduce pressure by interrupting light transmission between fiber optic paths in a catheter or guide wire carrier by misaligning the...
5006835 Remote calibrating for pressure transducer  
A pressure transducer having a first pair leads for receiving an excitation voltage and a second pair of leads between which it can supply a voltage corresponding to a pressure applied to it is...
4994035 Pressure-transmitting diaphragm system for infusions  
A pressure-transmitting diaphragm system for infusions, especially for infusions supplied by a pressure-generating pump, with an infusion line leading from the infusion receptacle to the catheter...
4991590 Fiber optic intravascular blood pressure transducer  
A device for the measurement of the blood pressure of a patient includes an arrangement for transmitting a light through an optical fiber; an arrangement for receiving and measuring a reflected...
4986671 Three-parameter optical fiber sensor and system  
A single sensor is provided as part of a fiberoptic probe to measure up to three parameters, namely pressure (or force or displacement), temperature, and heat flow or fluid velocity. A solid...
RE33518 Pressure transducer assembly  
A pressure transducer assembly is disclosed for directly monitoring pressure in a fluid which flows through the assembly. The assembly includes a housing defining a chamber therewithin and having...
4974596 Transducer with conductive polymer bridge  
A transducer has a thick perimeter and an integral diaphragm extending across said perimeter, all formed of a thermoplastic resin. A thick mass is molded at the center of the diaphragm. Resistive...
4970900 Pole mount organizer with modular interconnection receptacles  
The present invention provides a modular system for mounting one or more medical devices on an IV pole at a patient's bedside. The system comprises a support plate, and at least one modular...
4967755 Electromedical lead with pressure sensor  
A body implantable lead including a stimulation electrode located at its distal end, a ring electrode located proximal to its distal end, and a pressure sensor. The lead is adapted to be used in...
4966148 Assembly for positioning diagnostic devices in a biological vessel  
A method and assembly for inserting one or more diagnostic sensors into a biological fluid vessel for diagnosing the condition of the vessel or fluid. Different types of diagnostic sensors, such as...
4960127 Disposable transducer manifold  
A disposable transducer manifold assembly is provided which includes a tubular manifold formed within a frame and having an inlet and provided with at least one sensing port. The sensing port is...
RE33360 Disposable transducer apparatus for an electromanometry system  
The disposable transducer includes a small housing constructed of lightweight plastic material. The housing is shaped so as to form a transparent chamber within which is situated a very small...
4950244 Pressure sensor assembly for disposable pump cassette  
A pressure sensor assembly includes two spacedly positioned flexible supports which support an elongated rod, with one end of the elongated rod contacting a pressure detector section on a...
4924872 Tubular pressure transducer  
In a blood pressure monitoring system, a transducer which is a conductive rubber tube having conductive terminals at each end, and circumferentially spaced conductors connected to said...
4924870 Fiber optic sensors  
Serveral improvements in fiber optic sensing systems are disclosed. One improvement incorporates a dielectric filter applied directly to the sensing end of an optical fiber detector which has the...
4920972 Gel-filled blood pressure transducer  
A reusable pressure transducer for use with a detachable dome. The pressure transducer includes a body having a recess with an opening covered by a flexible diaphragm. The body has a hole opposite...
4901731 Single sensor pressure differential device  
An apparatus and method for sensing in vivo the fluid pressure differential between spaced locations in a biological fluid vessel using a single pressure transducer. The transducer has a deformable...
4886070 Method of in vivo calibration of a pressure sensor  
An improved miniature, in vivo, pressure sensor is disclosed which comprises a housing having an internal chamber adapted to be connected to a conduit for varying the pressure therein; a...
4883062 Temperture and pressure monitors utilizing interference filters  
An interference edge filter is mounted on the end of an optical fiber to provide a sensor for pressure or temperature. The filter is formed such that the transition slope of the filter curve will...
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...
4873986 Disposable apparatus for monitoring intrauterine pressure and fetal heart rate  
A disposable apparatus for monitoring intrauterine pressure and fetal heart rate during labor and childbirth. The apparatus includes a semiconductor pressure transducer mounted on a substrate. In...
4858611 Sensing system and method for sensing minute ventilation  
A sensing system for detecting the frequency and amplitude of motion of a patient's diaphragm, having a transducer for detecting movement, transvenously implantable in a patient's cardiovascular...
4856340 Pressure diaphragm for a medication infusion system  
A pressure diaphragm installed in a disposable cassette for use on a main pump unit is disclosed which allows pressure downstream of a fluid pump to be measured with a high degree of accuracy. The...
4854326 Establishing a zero reference for invasive pressure sensors  
A catheter for use in apparatus for deriving a signal corresponding to the blood pressure of a patient, said catheter comprising means defining a lumen in said catheter, a transducer mounted at a...
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...
4850358 Method and assembly for introducing multiple devices into a biological vessel  
A method and assembly for inserting a plurality of sensors into a biological fluid vessel for diagnosing the condition of the vessel or fluid. A pressure sensor is described which is particularly...
4825876 Encapsulated blood pressure transducer  
An apparatus and method for providing a blood pressure transducer suitable for use in a catheter line, for monitoring blood pressure. Two embodiments of the blood pressure transducer (20, 120) are...
4821735 Method and apparatus for detecting myocardial ischemia  
An apparatus and method for detecting myocardial ischemia in a subject monitors the systemic vascular resistance of the subject and detects the presence of myocardial ischemia when the systemic...
4817629 Process and apparatus for measurement and monitoring of muscle compartment pressure  
Portable apparatus for measuring and monitoring muscle compartment pressures comprising a system of a disposable assembly of a syringe, a pressure chamber having a diaphragm, and means to penetrate...
4815472 Multipoint pressure-sensing catheter system  
A capacitive pressure sensor suitable for making highly sensitive, low pressure measurements is disclosed. The sensor may be mounted into a 0.5 mm OD catheter suitable for multipoint pressure...
4815471 Catheter assembly  
A compact catheter assembly provides for the communication of a reference pressure to a pressure-sensing transducer by forming a passageway between spaced electrical conductors mounted on a planar...
4809704 Catheter type sensor  
A catheter type sensor, which is inserted into a living body in order to directly measure within the living body biological data such as blood pressure, has at least one base in its distal end or...
4805630 Pressure monitoring devices  
A probe for monitoring the blood pressure of a patient includes a light reflective diaphragm 4 deformable in response to the blood pressure. A single emitter light guide 10 is arranged off-set from...
4803992 Electro-optical instruments and methods for producing same  
Improvements in catheters, particularly of the electrooptical type employing light energy and detect and measure body variables, such as blood pressure and flow and the composition of body fluid....
4795440 Low-volume non-bubble collecting pressure dome  
A pressure sensor comprising a main body having an inlet connectable to a source of liquid under pressure, an outlet, a passage extending through the main body from the inlet to the outlet and a...
4787396 Fiberoptic pressure transducer  
A miniaturized pressure transducer, particularly suited for intravascular blood pressure measurement, utilizing a single optical fiber for transmitting light both to and from a flexible diaphragm...
4785822 Disposable intracompartmental pressure transducer  
A disposable pressure transducer apparatus for monitoring intracompartmental pressures, such as intrauterine and amniotic fluid pressures during childbirth. The apparatus includes a semiconductor...
Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >