Medivance, Inc.

Gary Gruszecki

Gary Allen Carson

Robert Proctor

Marc E Voorhees

Bruce S Ellingboe

Bruce Ellingboe

A patient temperature control system for automated temperature control according to a programmed protocol. In one aspect, at least one programmed protocol may be established for each of a plurality of patient thermal therapy phases. In turn, the temperature of a thermal exchange medium may be controlled upon the programmed protocol during each of the phases. A plurality of programmed protocols may be established, wherein a selected protocol may be utilized for automated temperature control during patient thermal therapy. The protocol may include a target patient temperature and/or a set duration for one or more of the phase of thermal therapy. The protocol may be user-definable and modifiable during therapy. In a multiphase configuration, automatic termination and initiation of successive phases may be selectively established by a user, based on target patient temperature data and/or set duration data on a phase-specific basis.

System and method for patient temperature control

A system and method are provided, the system including a monitoring device to monitor sensory data of a patient and to provide a sensory data response thereto, and a control unit configurable to cool or warm circulated fluid through at least one contact pad for thermal exchange with the patient. The monitoring device can be configured to monitor a patient physiological response to a change in temperature of the patient (e.g. pursuant to induced hypothermia therapy), wherein a monitoring signal is provided by the monitoring device. A processor can be provided to process the monitoring signal and provide an output employable by medical personnel. The processor can be programmed to control automatically a temperature of the circulated fluid to cool or warm the patient in different treatment phases in accordance with a predetermined protocol, and process the sensory data signal to provide an output signal indicative of a sensory measurement.

Patient temperature response control system and method

A patient temperature control system and method are provided for automated temperature control according to a programmed protocol. In one aspect, at least one programmed protocol may be established for each of a plurality of patient thermal therapy phases. In turn, the temperature of a thermal exchange medium may be controlled, based at least in part, upon the programmed protocol, during each of the phases. In another aspect, a plurality of programmed protocols may be established, wherein a selected one of the protocols (e.g. selected by a user at a user interface) may be utilized for automated temperature control during patient thermal therapy. The protocol(s) may include a target patient temperature and/or a set duration for one or more of the phase of thermal therapy. Further, the protocol(s) may be user-definable and modifiable during therapy. In a multi-phase configuration, automatic termination and initiation of successive phases may be selectively established by a user, based on target patient temperature data and/or set duration data on a phase-specific basis.

A system and method are provided that employ a monitoring device to monitor at least one patient physiological response to a change in temperature of the patient (e.g. pursuant to induced hypothermia therapy), wherein a monitoring signal is provided by the monitoring device. In turn, an output (e.g. a visual and/or auditory output) may be provided to a user indicative of at least one measure of patient response to the change in temperature. Alternatively or additionally, a processor may be provided to process the monitoring signal and provide an output employable by medical personnel to control a patient shivering response to the patient temperature change. Such information may comprise information regarding one or more anti-shivering medicament(s), e.g. corresponding dosage and/or frequency information for use by medical personnel in the administration of the anti-shivering medicament. In one approach, a motion sensor may be selectively attached to a patient's chin to provide a wireless monitoring signal to a transceiver. In turn, the transceiver may provide the monitoring signal to the processor on an ongoing basis to output information useful in the administration of an anti-shivering medicament, including updated information that takes into account a patient's response to a prior administration of one or more medicaments in conjunction with the subsequent administration of an anti-shivering medicament.

A patient temperature repeating system and a method of repeating patient temperature information from a resistive-type patient temperature sensor allow one or more medical instruments to utilize a single patient temperature sensor. In one embodiment, the patient temperature repeating system () includes input and output connectors (), a microprocessor (), optical isolators (), a coarse digital potentiometer () in parallel with a fine digital potentiometer (), a current sense resistor (), amplifiers (A,B), analog-to-digital converters (A,B), a filter (), fuses (), a non-volatile memory device (), and a relay (). In operation, the microprocessor () reads the resistance level of a resistive-type patient temperature sensor () connected to the input connector () and provides the appropriate control signals through the optical isolators () to the coarse and fine digital potentiometers () in order to set the resistance seen by a medical device () connected to the output connector () to match that of the patient temperature sensor ().

Patient temperature repeating system and method

An improved patient temperature exchange system and method is disclosed for use with one or more interconnectable patient contact pads. In one embodiment, the system includes a circulating pump for drawing fluid through the interconnected pad(s) under negative pressure, and for pumping the fluid through one of more heat exchange devices into a circulating reservoir. A make-up reservoir may be provided for gravity fluid flow into the circulating reservoir during the filling of the interconnectable pad(s) and for receiving fluid upon emptying of the interconnectable pad(s). During normal heating/cooling operations, the circulated fluid does not pass through the make-up reservoir, thereby yielding a highly responsive system. The make-up and circulatory reservoirs may be directly interconnected, with the make-up reservoir maintained at atmospheric pressure (e.g. via a non-spill vent). To reliably maintain the desired negative pressure in the interconnectable pad(s), the system may provide for fluid pressure sensing on the inlet side of the circulating pump. The sensed pressure may be utilized to control the speed of the circulating pump. The system may further provide for the positioning of pressure drop a componentry on the outlet side of the circulating pump, thereby further facilitating the maintenance of a desired negative pressure within the interconnected pad(s). A bypass fluid line may also be included to provide for fluid preconditioning prior to interconnection of and/or fluid flow through the pad(s). Multiple temperature sensors and an interface for an external patient temperature input may also be provided for enhanced fluid heating/cooling control.

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Golden, CO, United States of America

Gary Gruszecki