Abstract: The onset of ovulation in a female is detected by measuring the water content of the cervical mucus. A pellet made of a water-swellable polymer is inserted into the vagina. The increase in the size of the pellet, that occurs owing to contact with the vaginal mucus for a selected period of time, is measured. The size of the pellet sharply increases at or about the onset of ovulation.
Abstract: A device for making physical measurements with respect to the body of a patient is provided which includes a non-opaque sheet-form viewing screen mounted in a frame. The screen includes centrally located, vertically extending graduations and a graduated, horizontally extending measuring bar is mounted for vertical movement relative to the vertical graduations on the screen. An angle measuring device in the form of a rotatable angle measuring arm and an associated indicator plate is mounted for movement along the measuring bar. An x-ray light box is pivoted for movement into and out of an operative position behind the screen.
Abstract: Apparatus for generating and recording signals from two separate sensors on a patient adapted to provide an indication of the condition of an anatomical member to be monitored.A control cabinet having an integral strip chart recorder is provided with plug in inputs for two externally connected strain gauges. Each strain gauge makes up one leg of a bridge circuit. The bridge outputs are amplified and multiplexed into a single channel strip chart recorder having a single, heated stylus which records two separate traces based on the signals received from the two sensors.Heat to the recordinng pen or stylus is turned off during switching excursions of the pen between the two traces so as to eliminate shading and marking which would otherwise occur on the recording chart between the traces at slow chart speeds.
April 21, 1977
Date of Patent:
August 1, 1978
American Medical Systems, Inc.
Ismet Karacan, Larry G. Paulson, Gerald W. Timm