University of Florida Research Foundation Inc

Beta Biomed Services, Inc.

Joachim S Gravenstein

Samsun Lampotang

Ronald G Carovano

Michael L Good

Willem L Van Meurs

Richard Joel Melker

George E Worley

Michael Joseph Banner

Nikolaus Gravenstein

Dietrich Gravenstein

Tammy Y Euliano

Johannes Hugo Van Oostrom

Michael S Good

Nicole Anna Marie De Beer

Mark Woodson McClure

James Bradley Azukas

Michael Franklin Ellis

Ronald George Carovano, Jr

Joannes E W Beneken

The present invention relates to novel lip/cheek probes for detection of pulse-based differences in light absorbence across the vascularized tissue of a lip or cheek of a patient. These probes are fabricated to provide signals to estimate arterial oxygen saturation, and/or to obtain other photoplethysmographic data. The present invention also relates to a combined probe/cannula. The present invention also relates to other devices that combine a pulse oximeter probe with a device supplying oxygen or other oxygen-containing gas to a person in need thereof, and to sampling means for exhaled carbon dioxide in combination with the novel lip/cheek probes. In certain embodiments, an additional limitation of a control means to adjust the flow rate of such gas is provided, where such control is directed by the blood oxygen saturation data obtained from the pulse oximeter probe.

Devices, systems and methods for plethysmographic monitoring at the nose

Specially configured lip/cheek pulse oximeter/photoplethysmography probes, selectively with sampler for capnography, and covering sleeves for same

The present invention relates to novel nasal pulse oximeter probes that are configured to be placed across the septum of the nose. These probes are fabricated to provide signals to obtain arterial oxygen saturation and other photoplethysmographic data. The present invention also relates to a combined nasal pulse oximeter probe/nasal cannula. The present invention also relates to other devices that combine a pulse oximeter probe with a device supplying oxygen or other oxygen-containing gas to a person in need thereof, and to sampling means for exhaled carbon dioxide in combination with the novel nasal probe. In certain embodiments, an additional limitation of a control means to adjust the flow rate of such gas is provided, where such control is directed by the blood oxygen saturation data obtained from the pulse oximeter probe.

Specially configured nasal pulse oximeter/photoplethysmography probes, and combined nasal probe/cannula, selectively with sampler for capnography, and covering sleeves for same

Method and apparatuses for simulating life support procedures in real-time using a mannequin. The apparatuses and methods are operable for a number of therapeutic interventions and provide for a number of appropriate simulated physiological and pharmacological responses. Included interventions are chest displacement, the application of gas pressure to the upper airway, inspiratory gas composition, administration of a fluid, or administration of intravenous drugs. These interventions provide a variety of appropriate responses (and misapplication of an intervention by a trainee provides a corresponding appropriate response).

Life support simulation system simulating human physiological parameters

A combination ventilation apparatus and anesthesia delivery system comprises a circulation loop within which oxygen and air or other clinical gas, or a mixture of air, oxygen, nitrous oxide or other clinical gas and anesthetics, are circulated by a variable speed centrifugal blower to a Y-piece which connects the circulation loop to an endotracheal tube or other airway device communicating with a patient. A proportional flow control valve is operative to actively control the pressure or flow at the Y-piece in response to signals from pressure or flow sensors which are positioned to provide measurements representative of the actual pressure and flow conditions within the patient's lungs. Constant circuit volume is maintained by computer control of gas make-up valves in response to the movement of a weighted bellows located between the proportional flow control valve and centrifugal blower.

Ventilation apparatus and anesthesia delivery system

An integrated patient simulator for training or other purposes capable of realistically reacting to a current physiological state and physiological model. A patient simulator and method of patient simulation wherein a physical gas composition representative of a simulated alveolar gas composition in a lung model is determined, and a simulated blood gas machine simulates an output representative of a simulated physiological state based at least in part on the simulated alveolar gas composition.

Apparatus and method of simulating the determination of continuous blood

An apparatus and method for injecting and volatilizing a volatile drug in a patient simulator, including a manikin, a gas supply and a drug volatilization device. The drug volatilization device includes a thermal conductor defining a gas propagation cavity, a sintered insert, and a needle accepting cavity. A simulated response to the drug is calculated, and an output device associated with the manikin is actuated to simulate the effect of the drug.

Apparatus for and method of simulating the injection and volatilizing of

A method and an apparatus for quantifying the amount of fluid administered to a patient simulator during simulated medical surgery. A fluid administered to a manikin and delivered to a reservoir associated with the manikin. The quantity of fluid administered is determined based on the change of weight of the reservoir. A simulated response to the administered fluid can be computed, based on the determined quantity of fluid administered.

Apparatus and method for quantifying fluid delivered to a patient

A method and apparatus for simulating lung sounds in real time in an integrated patient simulator uses a manikin having an associated simulated lung comprising at least one bellows and at least one sensor for sensing the position of the bellows. Based on a physiological state of the patient simulator, a audible lung sound is directed through a plurality of sound output devices located at different locations on the manikin. The lung sound corresponds to an appropriate physiological sound at that particular location on the manikin and is synchronized with the position of the bellows. Synchronization occurs by continuously determining a volume of the bellows to determine a respiratory phase and a transition in the respiratory phase. The respiratory phase is determined by calculating a first derivative of the bellows volume over time and the transition in the respiratory phase is determined by calculating a second derivative of the bellows volume over time.

Apparatus and method for simulating lung sounds in a patient simulator

An apparatus and method of simulating breathing sounds in real time involves the use of a manikin having a lung bellows. A sensor associated with the lung bellows is used to continuously determine the volume such that, using standard mathematical procedures based on the time and volume determined, a first derivative of the bellows volume over time can be calculated to determine the phase of the respiratory cycle (e.g. inhalation or exhalation). In addition, by calculating a second derivative of the bellows volume over time, a transition in phase of the respiratory cycle can be determined. Based upon the first and second derivatives of the bellows volume over time, a sound is output through an output device, such as a speaker, located proximate the mouth of the manikin. The outputted sounds are pre-recorded audible sounds of breathing corresponding to appropriate physiological sounds.

Apparatus and method of stimulating breathing sounds

An apparatus and method for detecting and identifying a drug administered in real time in an integrated patient simulator uses a manikin which receives the administration of the drug. A bar code is affixed to an implement for administering the drug, wherein the implement is an intravenous drip bag or a syringe. A scanner is used to scan the bar code to identify the type and concentration of the drug contained within the implement. The information obtained by the scanner is then used by a computer associated with the patient simulator to effect a response in the manikin.

Apparatus and method for detecting and identifying a drug

An apparatus and method for simulating bronchial resistance or dilation in real time in an integrated patient simulator during simulated medical procedures is realized by a manikin having a simulated trachea and a simulated lung, a conduit interconnecting the simulated trachea and the simulated lung for propagating a flow of gas, and a restricting device for variably restricting the flow of gas through the conduit. The restricting device includes a nautilus shaped cam and a stepper motor for rotating the cam such that a selected surface of the cam is disposed within a opening in the conduit so as to continuously vary the size of the opening.

Apparatus and method for simulating bronchial resistance or dilation

An apparatus and method for synchronizing output devices related to a cardiac rhythm in real time in an integrated patient simulator during simulated medical surgery includes a manikin, at least one output device including devices for simulating a cardiac pulse and a radial pulse, a first computer associated with the patient simulator for generating an electric cardiac rhythm synchronizing pulse, a second computer for receiving the cardiac rhythm synchronizing pulse and generating a simulated response thereto, and a distributed processing network for transmitting the cardiac rhythm synchronizing pulse between the first computer and the second computer and for transmitting the simulated response between the second computer and the output device. In this way, a time offset to allow for simulated travel time or lag of the simulated cardiac pulse through the body can be added by the second computer where appropriate for certain subsystems or monitors associated with the patient simulator.

Apparatus and method for synchronizing cardiac rhythm related events

A self-regulating, simulated lung for use in real time in simulated medical procedures comprises at least one bellows capable of receiving and expelling gas, a means for actuating the bellows depending upon a time- and event-based script, a computer model or a combination thereof, at least one mass flow controller capable of directing the gas into the bellows, and a volumetric pump for continuously expelling a constant flow rate of gas from the bellows. The means for actuating the bellows comprises a double acting piston connected to the bellows and having a first constant pressure and a second variable pressure acting on respective sides of the piston, whereby non-linear compliances may be simulated.

Growing community of inventors

Gainesville, FL, United States of America

Joachim S Gravenstein