US5503151A — Apparatus for measuring the parameters of respira…

Claim 1

Independent Claim 96 words

An apparatus for simultaneously measuring respiratory gas parameters comprising a respiratory tube and ultrasonic sensors and preamplifier electronic circuitry which is arranged in a housing separate from the respiratory tube, said ultrasonic sensors are embedded within tubular heads formed on the respiratory tube so that they constitute a single part therewith and wherein at least the respiratory tube with the embedded ultrasonic sensors is designed to form a disposable part for use only once; said apparatus further comprising a pressure sensor integrated in the respiratory tube, wherein the pressure sensor is cast in the respiratory tube.

Claim 2

Independent Claim 96 words

An apparatus for simultaneously measuring respiratory gas parameters comprising a respiratory tube and ultrasonic sensors and preamplifier electronic circuitry which is arranged in a housing separate from the respiratory tube, said ultrasonic sensors are embedded within tubular heads formed on the respiratory tube so that they constitute a single part therewith and wherein at least the respiratory tube with the embedded ultrasonic sensors is designed to form a disposable part for use only once; said apparatus further comprising a pressure sensor integrated in the respiratory tube, wherein the pressure sensor is cast in the respiratory tube.

Claim 3

Dependent Claim 34 words

The apparatus as claimed in claim 1, further comprising an infrared light source and opposite thereto an optical sensor wherein the infrared light source and the optical sensor are integrated with the respiratory tube.

Claim 4

Dependent Claim 18 words

The apparatus according to claim 2 wherein the respiratory tube is manufactured from a material transparent to light.

Claim 5

Dependent Claim 19 words

The apparatus according to claim 3, wherein the respiratory tube is manufactured from a light transmitting medicinal quality polymer.

Claim 6

Dependent Claim 24 words

The apparatus according to claim 2, wherein the infrared light source and the optical sensor are cast in a wall of the respiratory tube.

Claim 7

Dependent Claim 52 words

The apparatus as claims in claim 2, wherein the infrared light source and the optical sensor are installed adjacent to the ultrasonic sensors transversely along the respiratory tube such that connecting lines between the ultrasonic sensors and connecting lines between the infrared light source and the optical sensor intersect with each other.

Claim 8

Dependent Claim 31 words

The apparatus as claims in claim 2, wherein the infrared light source and the optical sensor are adapted to be mounted in position on the respiratory tube using a plug-on holder.

Claim 9

Dependent Claim 57 words

The apparatus as claimed in claim 2, wherein the infrared light source and the optical sensor are arranged adjacent to each other, and wherein a wall opposite to the optical sensor is given a mirror finish and is so configured that light emitted from the infrared light source is reflected and is received by the optical sensor.

Claim 10

Dependent Claim 72 words

The apparatus as claimed in claim 1, further comprising a light source installed in an electronic circuitry housing to emit suitable light such that light passes through a wall of the respiratory tube and impinges on a suitable fluorescent dye applied thereon and in that adjacent to the light source in the electronic circuitry housing an optical pickup is arranged which is adapted to determine oxygen concentration by luminescence or fluorescence measurements.

Claim 11

Dependent Claim 53 words

The apparatus as claimed in claim 1, wherein the housing for the pre-amplifier electronic circuitry is adapted to be flange mounted on the respiratory tube, the conduction of a power supply and of signals to sensors integrated in the respiratory tube and in a reverse direction taking place via an encoded plug-in board.

Claim 12

Dependent Claim 32 words

The apparatus as claimed in claim 1, further comprising connections in the housing of the pre-amplifier electronic circuitry for data lines for data representing readings from a separately connected O 2 analyzer.

Claim 13

Dependent Claim 22 words

The apparatus as claimed in claim 1, wherein the pre-amplifier electronic circuitry is directly cast in a floor of the respiratory tube.

Claim 14

Independent Claim 149 words

An apparatus for simultaneously measuring respiratory gas parameters comprising a respiratory tube and ultrasonic sensors and preamplifier electronic circuitry which is arranged in a housing separate from the respiratory tube, said ultrasonic sensors are embedded within tubular heads formed on the respiratory tube so that they constitute a single part therewith, said apparatus further comprising an infrared light source and opposite thereto an optical sensor wherein said infrared light source and optical sensor are integrated with the respiratory tube, and wherein at least the respiratory tube with the embedded ultrasonic sensors is designed to form a disposable part for use only once; said apparatus further comprising an infrared light source and opposite thereto an optical sensor wherein the infrared light source and the optical sensor are integrated with the respiratory tube, wherein the infrared light source and the optical sensor are cast in a wall of the respiratory tube.

Claim 15

Independent Claim 149 words

An apparatus for simultaneously measuring respiratory gas parameters comprising a respiratory tube and ultrasonic sensors and preamplifier electronic circuitry which is arranged in a housing separate from the respiratory tube, said ultrasonic sensors are embedded within tubular heads formed on the respiratory tube so that they constitute a single part therewith, said apparatus further comprising an infrared light source and opposite thereto an optical sensor wherein said infrared light source and optical sensor are integrated with the respiratory tube, and wherein at least the respiratory tube with the embedded ultrasonic sensors is designed to form a disposable part for use only once; said apparatus further comprising an infrared light source and opposite thereto an optical sensor wherein the infrared light source and the optical sensor are integrated with the respiratory tube, wherein the infrared light source and the optical sensor are cast in a wall of the respiratory tube.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1999-04-02	1999-10-02	2000-04-02	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2003-04-02	2003-10-02	2004-04-02	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2007-04-02	2007-10-02	2008-04-02	$7700.00	Window Closed / Lapsed

Apparatus for measuring the parameters of respiratory gases

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