US 12,310,905 B2
Bed apparatus and patient detection method
Hisao Morimura, Tokyo (JP); Makoto Tanaka, Tokyo (JP); and Shinsuke Watanabe, Tokyo (JP)
Assigned to PARAMOUNT BED CO., LTD., Tokyo (JP)
Filed by PARAMOUNT BED CO., LTD., Tokyo (JP)
Filed on Dec. 10, 2021, as Appl. No. 17/547,976.
Application 17/547,976 is a continuation of application No. 14/361,761, granted, now 11,246,778, previously published as PCT/JP2012/082153, filed on Dec. 12, 2012.
Claims priority of application No. 2011-273265 (JP), filed on Dec. 14, 2011.
Prior Publication US 2022/0096299 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61G 7/057 (2006.01); A61B 5/00 (2006.01); A61B 5/11 (2006.01); A61G 7/018 (2006.01)
CPC A61G 7/05776 (2013.01) [A61B 5/1113 (2013.01); A61B 5/1117 (2013.01); A61B 5/6892 (2013.01); A61G 7/018 (2013.01); A61B 2503/08 (2013.01); A61B 2505/03 (2013.01); A61B 2505/07 (2013.01); A61B 2562/0247 (2013.01); A61G 2203/34 (2013.01); A61G 2203/70 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A bed apparatus comprising:
a mattress mounted on a bed body; and
a first cell arranged on a left side of the bed body;
a second cell arranged on a right side of the bed body;
a display;
a controller configured to:
during a rotation operation, perform a first operation to determine a body position of auser of the bed apparatus,
cause the display to notify the user of conditions of the bed apparatus,
confirm whether the user is staying at a center of the bed apparatus by performing the first operation, which includes inflating the first and second cells and calculating a difference in pressure between the first and second cells;
wherein if the difference in pressure has continuously fallen within a predetermined range for a first period, perform the rotation operation to inflate the first cell and the second cell alternately after exhausting air to deflate both the first cell and the second cell once, wherein the controller is configured not to perform the rotation operation if the difference in pressure has not continuously fallen within the predetermined range for the first period.