1
Justin S Clark, William D Wallace: Noninvasive system and method for enhanced arterial oxygen saturation determination and arterial blood pressure monitoring. Medical Physics, Thorpe North Western, May 12, 1992: US05111817 (361 worldwide citation)

A noninvasive system and method for monitoring arterial oxygen saturation levels which may also be used to continuously and noninvasively monitor blood pressure, including generating a continuous blood pressure waveform. The apparatus of the described embodiment includes a red LED and an infrared LE ...


2
R Gail Billings, William D Wallace, Christopher A Cutler, B Tod Cook: Electrosurgical generator and suction apparatus. Utah Medical Products, Madson & Metcalf, November 3, 1992: US05160334 (242 worldwide citation)

An electrosurgical unit which combines an electrosurgical power generator and a filtered smoke removal system into a single compact instrument comprising an electrosurgical generator module and a smoke removal module. The electrosurgical generator module is designed specifically to accommodate an el ...


3
R Gail Billings, William D Wallace, Christopher A Cutler, B Tod Cook, Jon N Neese: Electrosurgical loop with a depth gauge. Utah Medical Products, Madson & Metcalf, June 28, 1994: US05324288 (148 worldwide citation)

An electrosurgical loop comprising an insulated shaft with an electrical contact at its proximate end and a pair of extending insulated prongs at its distal end. The extending prongs are configured to give the loop a "Y" shape and each end of a thin wire are connected to each prong to provide a wire ...


4
William D Wallace: Pressure transducer. Utah Medical Products, Workman Nydegger & Jensen, September 9, 1986: US04610256 (141 worldwide citation)

A pressure transducer which includes a novel apparatus and method for calibrating a pressure transducer to a monitor used in connection with an indwelling catheter to monitor a patient's blood pressure. The pressure transducer includes a transducer diaphragm disposed within a housing cavity. A manom ...


5
William D Wallace: Medical pressure sensing and display system. Utah Medical Products, Polster Polster and Lucchesi, June 4, 1991: US05021046 (109 worldwide citation)

A fluid pressure monitoring system for a balloon catheter includes a pressure transducer in fluid communication with the interior of the balloon. The pressure transducer includes elements for providing an electrical signal which is a function of the pressure in the interior of the balloon. An electr ...


6
William D Wallace, Christopher A Cutler, Scott D Gentry: Medical pressure sensing and display system. Polster Polster and Lucchesi, April 23, 1991: US05009662 (99 worldwide citation)

A fluid pressure monitoring system for a balloon catheter includes a pressure transducer in fluid communication with the interior of the balloon. The pressure transducer includes elements for providing an electrical signal which is a function of the pressure in the interior of the balloon. An electr ...


7
William D Wallace: Medical pressure sensing and display system. Polster Polster and Lucchesi, April 2, 1991: US05004472 (96 worldwide citation)

A fluid pressure monitoring system for a balloon catheter includes a pressure transducer in fluid communication with the interior of the balloon. The pressure transducer includes elements for providing an electrical signal which is a function of the pressure in the interior of the balloon. An electr ...


8
William D Wallace, Christopher A Cutler: Disposable pressure transducer apparatus for medical use. Utah Medical Products, Workman Nydegger & Jensen, March 18, 1986: US04576181 (92 worldwide citation)

A novel disposable pressure transducer apparatus for monitoring human blood pressure. The apparatus includes a semiconductor pressure transducer, a temperature compensation circuit, and light shielding structures mounted on a dielectric substrate. The substrate is secured within a housing adapted to ...


9
Justin S Clark, William D Wallace, Frederick L Farr: Sampling and determination of diffusible chemical substances. Intermountain Health Care, Criddle & Western, September 9, 1980: US04221567 (79 worldwide citation)

Method and system for sampling and determining chemical substances such as blood gases, in a fluid matrix, such as blood, by bringing the chemical substances into equilibrium with a liquid in a fiber probe, passing the equilibrated liquid to a sensor adjacent the equilibrium region and on into a hol ...


10
William D Wallace: Disposable intracompartmental pressure transducer. Utah Medical Products, Workman Nydegger & Jensen, November 22, 1988: US04785822 (72 worldwide citation)

A disposable pressure transducer apparatus for monitoring intracompartmental pressures, such as intrauterine and amniotic fluid pressures during childbirth. The apparatus includes a semiconductor pressure transducer mounted on a substrate. The substrate is secured within a flexible boot adapted to a ...



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