US 12,440,397 B2
System for loading/unloading an ambulance stretcher onto/from an ambulance
Ezio Menna, Collecchio (IT); and Michele Corradi, Parma (IT)
Assigned to STEM S.R.L., Medesano (IT)
Filed by STEM S.R.L., Medesano (IT)
Filed on Oct. 5, 2022, as Appl. No. 17/938,097.
Claims priority of application No. 102021000025517 (IT), filed on Oct. 7, 2021.
Prior Publication US 2023/0113855 A1, Apr. 13, 2023
Int. Cl. A61G 3/02 (2006.01); A61G 1/013 (2006.01); A61G 1/02 (2006.01); A61G 1/056 (2006.01); A61G 3/08 (2006.01)
CPC A61G 3/0272 (2013.01) [A61G 1/013 (2013.01); A61G 1/0212 (2013.01); A61G 1/0562 (2013.01); A61G 3/0254 (2013.01); A61G 3/0883 (2013.01); A61G 2203/20 (2013.01); A61G 2203/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ambulance stretcher, which comprises:
a support frame for supporting a patient;
a pair of front legs, each having a front wheel;
a pair of rear legs, each having a rear wheel;
an actuation arrangement provided with a front actuator, which moves the pair of front legs and which interconnects the support frame and the pair of front legs, and a rear actuator, which moves the pair of rear legs and which connects the support frame and the pair of rear legs; and
a front coupling body connected to a front end of the support frame;
a controller of the coupling body comprising at least a first sensor connected to the coupling body and configured to detect a correct positioning of the coupling body in a respective support coupling of an automatic loading/unloading apparatus of an ambulance, and at least a second sensor connected to the coupling body configured to detect a load bearing on the coupling body;
at least one release arrangement arranged at the front end of the support frame and configured to operate a release between the coupling body and the support coupling of the loading/unloading apparatus of an ambulance; and
an electronic control unit operatively connected to the actuation arrangement, to the release arrangement and to the controller and configured to actuate one of the actuation arrangement and the release arrangement as a function of a signal received from at least one of the first sensor and the second sensor of the controller.