Beds – Bedsteads – Element or detail
Patent
1975-09-16
1976-11-02
Gilliam, Paul R.
Beds
Bedsteads
Element or detail
128361, A47C 2708
Patent
active
039887936
ABSTRACT:
A mattress device designed for treating a pregnant woman by releasing the pressure ordinarily produced by the pregnant uterus and the abdominal wall on the abdominal aorta, thereby helping to prevent complications of pregnancy, such as toxemia and fetal distress. The device comprises a thick mattress-like member having an inflated ring extending through the mattress with a chamber formed on the central portion of the ring. The chamber is open at the top for receiving the pregnant uterus of a woman lying in the prone position, with her abdominal wall floating freely in the chamber. The inflated ring is filled to an air pressure which provides a body support that compensates for the heavier weight around the midsection. The combination of the variable air pressure of the ring and different sizes and shapes of such ring permit a mattress support well adapted to the varied sizes and shapes of the pregnant uterus while also enabling the abdominal wall to float freely in the chamber. The bottom of the chamber is closed by a wall in air-tight relation with the side walls of the ring. The top, outside surface of the ring is made of a rubber-like or plastic material that can form an air-tight seal with the skin of the woman around the area adjacent the pregnant uterus. In this fashion, an enclosed chamber is formed which is connected in fluid communication with a vacuum pump. The negative pressure in the chamber further relieves the pressure of the pregnant uterus and the abdominal wall on the abdominal aorta.
REFERENCES:
patent: 1548728 (1925-08-01), Milam
patent: 2537906 (1951-01-01), Over
patent: 3062215 (1962-11-01), Heyns
patent: 3118152 (1964-01-01), Talley
patent: 3287747 (1966-11-01), Ellsworth
Calvert Andrew M.
Gilliam Paul R.
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