04139917 is referenced by 150 patents and cites 6 patents.

A bed for obstetrical and similar purposes, having a rigid support frame in two releasable modules which mounts a series of relatively movable mattress sections. When latched end-to-end, the two modules and the mattress sections are capable of being adjusted to various configurations to comfortably support a patient for labor, delivery and normal hospital care purposes. A center mattress section is movably supported on pivoted braces connected to the bed support frame. An upper mattress section is pivotably connected to the center section, and a lower mattress section is movably mounted to the bed support frame. Elevational adjustment is available between the abutting ends of the center and lower sections to expose the patient's pelvic area. When necessary, the two modules can be detached from one another and leg supports can be used to provide access for difficult deliveries or other operations.

Title
Labor, delivery and patient care bed
Application Number
5/842958
Publication Number
4139917
Application Date
October 17, 1977
Publication Date
February 20, 1979
Inventor
Loel Fenwick
P.O. Box 3211, Spokane, 99220
WA, US
Agent
Wells St John & Roberts
IPC
A61G 13/00
View Original Source