1
Wilhelm A Hofert, Peter F Schlussel, Anton H Sutor, Georg J Ullrich: Precision spring lancet. Hellige, Norman E Brunell, W R Thiel, May 20, 1980: US04203446 (287 worldwide citation)

A spring lancet holder for creating accurate standardized, reproducible puncture wounds in the skin for medical diagnostic purposes is disclosed in which accuracy and reproducibility is improved by minimizing the recoil transmitted to the lancet holder by actuation of the drive mechanism which pushe ...


2
Georg J Ullrich, Karl Heinz Pomorin, Harald Kronberg, Gunter Bramm, Peter Koschke, Pavel Novak, Michael R Gaab: Adapter assembly for use with a cranial biosensor. Hellige, Edward J Whitfield, February 21, 1989: US04805634 (44 worldwide citation)

Disclosed is an adapter assembly for accurately positioning a removable biosensor implanted in the cranium or skull cap. The assembly comprises an outer sleeve member insertable into a hole bored through the skull cap and an inner sleeve member coaxial with the outer sleeve. The sleeve members are c ...


3
Georg J Ullrich: Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood. Hellige, John E Curley, Edward J Whitfield, June 5, 1990: US04930506 (20 worldwide citation)

The combined sensor with a thermostatted heating device (7, 23) for the simultaneous and continuous transcutaneous measurement of oxygen (O.sub.2) and of carbon dioxide (CO.sub.2) in the blood contains a measuring device (1) for the partial pressure of CO.sub.2 (pCO.sub.2), in which there is pure op ...


4
Helmut Leist, Georg J Ullrich: Thermal protective circuit for a hyperemia-inducing physiological sensor. Hellige, Richard Zentner, Walter R Thiel, June 15, 1982: US04334541 (15 worldwide citation)

A sensor for transcutaneous measurement of physiological phenomena of living tissues is provided with a thermostatically-controlled electric heater. The purpose of the heater is to induce local hyperemia to enable operation of the sensor. The heater is thermostatically controlled. An independent tem ...


5
Georg J Ullrich: Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood. Hellige, Edward J Whitfield, June 20, 1989: US04840179 (12 worldwide citation)

The combined sensor with a thermostatted heating device (7, 23) for the simultaneous and continuous transcutaneous measurement of oxygen (O.sub.2) and of carbon dioxide (CO.sub.2) in the blood contains a measuring device (1) for the partial pressure of CO.sub.2 (pCO.sub.2), in which there is pure op ...


6
Hermann Moll, Helmut J Leist, Karl Heinz Pomorin, Georg J Ullrich: Membrane retainer arrangement for physiological sensing units. Hellige, Robert A Seldon, January 17, 1984: US04425918 (8 worldwide citation)

Disclosed herein is a retainer arrangement for applying a membrane to a physiological sensing unit for the transcutaneous determination of the magnitude of physiological quantitites, particularly for measuring the partial pressure of gases in blood or the like. The arrangement constitutes a preassem ...


7
Alphons Gunther, Karl Heinz Pomorin, Hans P Spiess, Georg J Ullrich: Applicator for affixing a membrane to a sensor. Hellige, Norman E Brunell, W R Thiel, January 22, 1980: US04184241 (4 worldwide citation)

A device is disclosed for applying a gas permeable membrane to an electrode. A collar is used to hold the membrane on the electrode. The device includes a guide bushing for forcing the collar over the membrane onto the electrode and includes a soft surface for maintaining a constant pressure against ...


8
Joachim Hopmeier, Helmut Leist, Georg J Ullrich: Method for the calibration of an oxygen sensing unit and calibration agent therefor. Hellige, June 22, 1982: US04336031 (3 worldwide citation)

Disclosed herein is a method for the calibration of a sensing unit for determining the partial pressure of oxygen in contact with the sensing unit. The method is of the type using a zero-calibration solution in which the partial pressure of oxygen is maintained at zero by virtue of a binding agent p ...



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