Rathbun; Roger M., Cassett; Larry R. - US Patent Attorneys and Agents

Attorney: Rathbun; Roger M., Cassett; Larry R.

Number of patents: 38
Last date: July 30, 1996

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Number	Title	Issue Date
5540662	Medical devices A medical device, for example, an IV cannula or a syringe which has a hollow needle 4 with a sharp distal end 6 for piercing the skin of a patient includes means for protecting the sharp end 6 of the needle 4 after use to minimise the possibility of accid...	07/30/1996
5531663	Incubator mattress tilt mechanism An infant incubator tilt mechanism is disclosed that allows infinite adjustment of the tilt angle of the infant mattress within certain limits. The mechanism includes a bent rod positioned within the infant incubator itself and underlying the infant bed a...	07/02/1996
5520654	Catheter device A device comprises an elongate, tubular sheath (4) having an anterior and a posterior end (6; 8), a pointed needle (18) arranged in the sheath (4) for displacement between a first and a second end position, a catheter (26) initially supported by the needl...	05/28/1996
5474517	Heater assembly for infant warmers An infant care center or infant care warmer having as it source of heat, an infrared emitter that is located above the infant bed and which is relatively small in dimensions so as to not impede the access to the infant by attending personnel at any time, ...	12/12/1995
5400425	Fiberoptic illuminator for infant care An illuminator for use with a variety of end use light emitting devices for administering light for therapy and/or observation of an infant. One of the end use emitting devices is a device to provide phototherapy to the infant and is prevented by the illu...	03/21/1995
5390665	Anaesthetic vaporizer having a pressure sensitive diaphragm connecting the anaesthetic reservoir and vaporizing chamber An anaesthetic vaporizer includes a passageway 10, 30 for directing carrier gas through a fixed laminar restrictor 32 to a vaporizing chamber 26. Liquid anaesthetic agent is injected into the vaporizing chamber 26 from a constant level tank 12 the output ...	02/21/1995
5381836	Fluid delivery system A system for delivery of volatile liquid drugs as supplied to a patient by an anaesthetic vaporizer comprises a supply container (2) and a vaporizer (32) which includes a sump. Each of the supply container and the vaporizer is provided with a valve assemb...	01/17/1995
5376761	In bed infant scale An in bed infant scale for use with an infant care center and which may be slid underneath the infant platform of the infant care center while the infant is positioned within the center and which causes little disruption to the infant. The infant scale is...	12/27/1994
5370357	Needle valve with deformable seal A needle valve including a deformable seal positioned between the distal end of the needle and a hard, mechanical seat between the needle and the valve housing. The deformable seal is able to seal around the movable needle but is protected from serious de...	12/06/1994
5365925	Disposable calibration boot for multi-point calibration in fiber optic sensors A calibration boot for use with an optical catheter includes a plurality of materials, each having a different reflectivity characteristic with respect to known wavelengths of light. The boot is positioned over the distal end of the optical catheter and l...	11/22/1994
5351557	Rotary flowmeter with varying area channel A rotary type of flowmeter having an orifice directing the flow toward a moveable needle. The needle moves within a channel that has a varying cross-sectional area in a plane transverse to the needle movement such that the effect of the velocity of the fl...	10/04/1994
5339223	Servocontrol for fiberoptic phototherapy pad A system for controlling the amount of light radiation directed upon an infant from a fiberoptic phototherapy pad by feedback from a light detector that itself is a fiberoptic pad. The fiberoptic detecting pad receives and detects the light density radiat...	08/16/1994
5324000	Non-rotating needle valve A needle valve having improved economy of manufacture and assembly is disclosed in which the tapered end of the needle moves axially with respect to a valve seat having a cylindrical opening but does not rotate. An adjusting means, in turn, is rotated to ...	06/28/1994
5315989	Medical ventilator A medical ventilator is provided which continuously controls both inspiratory and expiratory flow and pressure, including positive end expiratory pressure (PEEP), through control of a single inspiratory flow-control valve. This valve controls inspiratory ...	05/31/1994
5315993	Luminescence monitoring with modulation frequency multiplexing A luminescence based analytical probe is excited with light varying repetitively in amplitude at multiple modulation frequencies. A composite signal incorporating components at a plurality of these modulation frequencies, produced by emissions in all of t...	05/31/1994
5284053	Controlled flow volumetric flowmeter Apparatus and method for metering the flow rate of a fluid through a conduit in which a low inertia transducer is placed between the inlet and outlet, the transducer having a substantially cylindrical housing and a rotatable element concentric to the hous...	02/08/1994
5282479	Guidewire introducer with guidewire grasp and release means A combination of a protective tube and guidewire straightener used to locate a guidewire into a patient for introducing a catheter into a patient's bloodvessel. The guidewire straightener has a flexible end that flexes inwardly to lock the guidewire in a ...	02/01/1994
5267585	Elastomeric flow control valve A flow control valve is disclosed wherein a deformable elastomeric element is positioned at least partially within the flow path of a fluid passing between an inlet and an outlet. By deforming the elastomeric element, the cross-section of the flow path of...	12/07/1993
5265638	Magneto-pneumatic intermittent suction device An intermittent suction device for removing fluids from a patient where the duty cycle between the OFF and ON cycles is controlled by a magnetically susceptible diaphragm that switches back and forth between first and second positions, representing ON and...	11/30/1993
5265639	Magneto-pneumatic timing device A magneto-pneumatic timing device is disclosed that provides a pressure signal alternating between a high and a low pressure output signal. The duty cycle may be varied as well as the overall cycle time. A magnetically biased flexible diaphragm divides a ...	11/30/1993
5253536	Rotary flowmeter with variable inlet A rotary type flowmeter having a variable orifice through which the flow to be measured is directed toward a rotatable needle. A preload is also applied and which may be varied as desired. By the use of the variable orifice and with the preload, the same ...	10/19/1993
5245405	Constant pressure gas cell A gas analysis cell having a pressure control system eliminates pressure variations in the gas cell regardless of changes in restriction, gas viscosity and barometric pressure. Since optical alignment through the gas cell is sensitive to gas pressure, mai...	09/14/1993
5184742	Deadender cap for Luer fitting A deadender cap that is designed to be screwed into a standard medical Luer male thread connection to dead end that connection. The deadender cap is a one-piece molded construction having an internal tapered projection that fits within the open passages o...	02/09/1993
5170797	Thermodilution injectate system with filter A filter having a microporous hydrophilic membrane is utilized in a thermodilution set up wherein the filter is positioned downstream from the injectate reservoir, the syringe and most of the fittings through which bacteria or other harmful materials coul...	12/15/1992
5170823	Device for filling an anaesthetic vaporizer A combination of bottle, collar and cap where the bottle collar has a keying lug that interfits with a cap slot and which keying is necessary to screw the cap onto the bottle....	12/15/1992
5168866	Vaporizers usable with anesthetics having a boiling point near the ambient temperature An anesthetic vaporizer 1 of the by-pass type includes a vaporizing chamber 12 containing an anesthetic agent which at normal atmospheric pressure has a boiling point of approximately 25° C. The vaporizing chamber 12 is surrounded by thermal insulation 1...	12/08/1992
5151869	Frequency domain fluorometry using coherent sampling Apparatus and methods for measuring response of a chemical composition to light, as by frequency domain, phase angle, or modulation fluorometry and/or phosphorimetry. Pulsed light having a known fundamental frequency is applied to the composition thereby ...	09/29/1992
5146915	Anesthetic vaporizers An anesthetic vaporizer 1 for use particularly with anesthetic agents having a low boiling point comprises an inlet 2 for carrier gas an an outlet 4 for carrier gas and gaseous anesthetic agents. A first passage 6 extends between the inlet 2 and the outle...	09/15/1992
5129879	Quiet incubator latch A handhole latch is disclosed for use with an infant incubator and which is damped by one or more elastomeric O-rings to reduce noise and vibration that could startle the infant. The O-rings are positioned between a moving piston latch and a housing such ...	07/14/1992
5127405	Biomedical fiber optic probe with frequency domain signal processing A fiber optic probe incorporating a luminescent composition is used to monitor conditions within a living subject. Response light from the fiber optic is detected and a frequency domain representation of the response light is derived. Characteristics of t...	07/07/1992
5125905	Guidewire straightener A guidewire straightener that is adapted to fit on the end of a protective tube containing a guidewire used for introducing a catheter into a patient's bloodvessel. The guidewire straightener has a flexible end that flexes inwardly to grasp the guidewire ...	06/30/1992
5102625	Apparatus for monitoring a chemical concentration A sensor for monitoring a condition such as a chemical concentration includes two luminescent materials having differing absorption bands and differing sensitivities to the condition to be monitored. Light in the two absorption bands is applied in alterna...	04/07/1992
5059171	Bubble detection system A bubble detection system for use in a fluid delivery line leading to a patient for automatic delivery of a fluid. The system monitors a parameter indicative of compressibility of the fluid being delivered and compares that monitored parameter with a know...	10/22/1991
5028808	Devices capable of sensing rotary motion A rotation-sensing device for providing output signals that correspond to rotary hand movement made about the device by an operator is disclosed. The device comprises a cover member including an outer surface having a generally cylindrical, longitudinally...	07/02/1991
4941475	Thermodilution by heat exchange Heat is removed from the blood flow by heat exchange rather than cold-liquid injection; resulting temperature changes are monitored. Flow rate is found from monitored temperature and known parameters related to the amount of heat removed. Preferably heat ...	07/17/1990
4936824	Infant incubator with air curtain An infant incubator is disclosed having a hood that encloses the infant compartment. In the base of the incubator is the heating air and ducting means and which provides heated through an ever open outlet in the base and which heated air passes from the b...	06/26/1990
4934375	Flush-valve assembly for blood pressure measurement catheter A resilient valve core, biased against its seat in a molded body, controls large flow volumes for flushing. A small resilient tube embedded in the core bypasses the valve to provide smaller flow volumes for IV-fluid drip. For flushing, the core is deforme...	06/19/1990
4915132	Gas regulator selector valve A selector valve for use with a hospital vacuum on position in pressure module to supply vacuum or pressure to a utilization means. The selector valve has two or more positions and includes a positive stop at each of its positions through the use of molde...	04/10/1990

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Attorney: Rathbun; Roger M., Cassett; Larry R.