Stephen J Lloyd

US Patent:

46175253, Oct 14, 1986

Filed:

Jan 30, 1984

Appl. No.:

6/574969

Inventors:

Stephen R. Lloyd - Chicago IL

International Classification:

G08B 2100

US Classification:

340573

Abstract:

A device for awakening a sleeping person when the sleeping person attempts to sleep in a particular sleep posture includes a sensor, a time-delay circuit, and an alarm or other device for generating a stimulus for awakening the person. The time-delay circuit is designed such that it activates the alarm only when the sensor indicates the person is in the particular sleep posture for a predetermined period of time and also stops the alarm when the person stops sleeping in the particular sleep posture. The device can also be used for monitoring the sleeping person's sleep posture for diagnostic purposes.

US Patent:

48632597, Sep 5, 1989

Filed:

Mar 9, 1988

Appl. No.:

7/166055

Inventors:

Michael B. Schneider - Chicago IL
Stephen R. Lloyd - Chicago IL

International Classification:

A61B 314

US Classification:

351210

Abstract:

A method and apparatus are provided in which an REM sleep state is accurately identified by detecting and counting a selectable number of eye movements within a selectable time interval. A body movement sensor is used to prevent false indications of REM sleep by inhibiting such indication upon sensing of body movement. An eye movement sensor which uses IR light transmission across an eye is disclosed.

US Patent:

50381377, Aug 6, 1991

Filed:

Mar 26, 1990

Appl. No.:

7/498616

Inventors:

Stephen Lloyd - Chicago IL

International Classification:

G08B 2300
G01C 906
H01H 3502

US Classification:

340573

Abstract:

A sleep posture monitor and alarm system detects one or more of four possible sleep positions and sounds an alarm when an individual wearing the apparatus assumes one or more of the detected positions. In addition, interface units for providing a monitoring output of the device to a polysomnograph are included as well as circuitry to record the commutative total time spent by the individual when in the selected positions.

US Patent:

45936862, Jun 10, 1986

Filed:

Nov 13, 1984

Appl. No.:

6/670991

Inventors:

Stephen R. Lloyd - Chicago IL
Charles F. Samelson - Chicago IL

International Classification:

A61F 556

US Classification:

128136

Abstract:

A monitor system is provided for a device used in the treatment of sleep apnea. The device engages the user's tongue in a socket. The tongue is thereby held in a forward position, increasing the size of the air passageway, while at the same time flow of air through the mouth is blocked. The monitor is responsive to the position of the tongue in the socket and activates an alarm when the tongue slips out of the socket. One example of such a monitor includes circuitry with a thermistor. Thermistor temperature changes are used to generate a voltage that enables alarm and recording circuitry.