1
Kuypers Martinus H, Steeghs Gerardus Franciscus Jo: A polarographic-amperometric three-electrode sensor.. Ppg Hellige, February 7, 1990: EP0353328-A1 (564 worldwide citation)

For a potentiostatically operable, polarographic-amperometric sensor, in particular for biomedical use, wherein a working electrode (5) and a reference electrode (4) are covered by an electrolyte layer (9) which is separated from the medium to be measured by a semipermeable membrane (8), the inventi ...


2
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 (288 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 ...


3
Marianne E Schlaefke, Joachim Hopmeier: Apparatus and method for preventing hypoxic damage. Hellige, Edward J Whitfield, March 21, 1989: US04813427 (69 worldwide citation)

Disclosed are apparatus and method for preventing hypoxic damage, relieving respiratory difficulties and conditioning breathing reflexes in a living human body. More particularly, at least one sensory stimulus is imparted to the body in response to a deviation from at least one adjustable physiologi ...


4
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 ...


5
Gerhard Hofmann, Hermann Taaks: Apparatus for automatically monitoring body functions. Hellige, Robert A Seldon, Richard Zentner, September 6, 1983: US04403215 (24 worldwide citation)

A respiration monitor for use in an apnea monitor is disclosed in which a threshold value signal is automatically generated proportional to the average value of the monitored impedance of the subject during a base period selected by the operator. A comparator circuit operates to indicate respiration ...


6
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 ...


7
Hofmann Gerhard H Dipl Ing: Interference suppression of qrs detector by automatic threshold leveling.. Hellige, August 22, 1979: EP0003567-A1 (18 worldwide citation)

1. QRS detector for rectified QRS input signals (59), including automatic threshold value determination for devices for monitoring heart activity, in which detector the threshold value of the detector turn-on point can be automatically displaced as a function of the input signal (59) by an adjustmen ...


8
Helmut Leist: Physiological sensing unit. 501 Hellige, Robert A Seldon, February 21, 1984: US04432365 (16 worldwide citation)

Disclosed herein is a physiological, electrically heated, thermostatically controlled sensing unit of the type used in the medical field for measuring blood contents, such as oxygen. A typical unit comprises a housing for application to the skin of a living being, an electric heater element within t ...


9
Gerhard H Hofmann: QRS detector for EKG signals. Hellige, December 9, 1980: US04237903 (16 worldwide citation)

An improves QRS detector is disclosed which utilizes a comparison between the arithmetic mean value of the filtered and full wave rectified EKG signal and such EKG signal reduced by a proportionality factor related to the ratio between the peak and mean value of a full wave rectified sinusoidal wave ...


10
Harald Kronberg: Adapter assembly for use with a cranial biosensor. Hellige, John E Curley, Kenneth J Stachel, Richard E Maebius, February 19, 1991: US04993425 (15 worldwide citation)

To enable conventional adapter assemblies used to accurately position a removable biosensor, to be used for measurements in the interior of the skull of small children, the disclosed is a support sleeve which ensures an axial length compensation, taking into account the thinner skull bone thickness, ...



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