Powered ambulance cot with an automated cot control system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61G-001/02
A61G-001/013
A61G-001/056
출원번호
US-0538164
(2014-11-11)
등록번호
US-9456938
(2016-10-04)
발명자
/ 주소
Blickensderfer, Colleen Q.
Magill, Brian M.
Wells, Tim R.
Sar, Preeti
Robinson, Derick C.
Valentino, Nicholas V.
Clark, Michael D.
출원인 / 주소
Ferno-Washington, Inc.
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
2인용 특허 :
6
초록▼
A powered ambulance cot and methods of raising and lowering the cot as well as loading and unloading the cot are disclosed. The cot includes a support frame and legs, each leg having a wheel. An actuator of an actuation system interconnects the frame and legs, and is configured to effect changes in
A powered ambulance cot and methods of raising and lowering the cot as well as loading and unloading the cot are disclosed. The cot includes a support frame and legs, each leg having a wheel. An actuator of an actuation system interconnects the frame and legs, and is configured to effect changes in elevation of the frame relative to the wheel of each of the legs. A control system controls activation of the actuation system, and detects both the actuator at a first location relative to the frame, where the first location is remote from a second location and which situates an end of the actuator that is remote from each wheel closer to the frame, and a presence of a signal requesting a change in elevation of said support frame to thereby cause the legs to move relative to the support frame.
대표청구항▼
1. A powered ambulance cot for transporting a patient above a surface, comprising: a support frame;four legs, each leg having a wheel for supporting the cot on the surface;an actuator of a cot actuation system which interconnects the support frame and a pair of the legs, and effects changes in eleva
1. A powered ambulance cot for transporting a patient above a surface, comprising: a support frame;four legs, each leg having a wheel for supporting the cot on the surface;an actuator of a cot actuation system which interconnects the support frame and a pair of the legs, and effects changes in elevation of the support frame relative to the wheel of each of the legs; anda cot control system operably connected to the cot actuation system to control activation of the cot actuation system, and which detects both the actuator at a first location relative to the support frame, where the first location is remote from a second location and which situates an end of the actuator that is remote from each wheel closer to the support frame, and a presence of a signal requesting a change in elevation of said support frame relative to the wheel of each of the legs to cause the cot actuation system to move the pair of the legs relative to the support frame at a first speed that is different from a second speed at which the cot actuation system moves the pair of the legs relative to the support frame when the end of said actuator is at the second location. 2. The powered ambulance cot according to claim 1, wherein the cot control system comprises at least one controller, sensors, a user display unit, a battery unit, and a wired communication network configured to transport messages between the at least one controller, sensors, the user display unit, and the battery unit. 3. The powered ambulance cot according to claim 2, wherein said wired communication network is selected from a controller area network (CAN), a LONWorks network, a LIN network, an RS-232 network, a Firewire network, and a DeviceNet network. 4. The powered ambulance cot according to claim 2, wherein the battery unit is a battery management system integrated with a battery pack that provides portable power to the cot, wherein that battery management system controls charging and discharging of the battery pack and communicates with the at least one controller over the communication network. 5. The powered ambulance cot according to claim 2, wherein the at least one controller is a first controller and the cot control system comprises a second controller, wherein the first controller is a motor controller for controlling the raising and lowering of said support frame with respect to each wheel, and the second controller is a graphical user interface controller for receiving input from and providing output to an operator. 6. The powered ambulance cot according to claim 5, wherein the cot control system comprises a third controller selected from a wireless controller for sending and receiving wireless communications, a battery controller for controlling a battery which supplies power to all powered components of the powered ambulance cot, and combinations thereof. 7. The powered ambulance cot according to claim 5, wherein said motor controller is programmed by a script of program logic to control activation of the cot actuation system to raise and lower said support frame with respect to each wheel of the legs. 8. The powered ambulance cot according to claim 1, wherein the cot control system includes a manually operable, user interface device for providing the signal requesting the change in elevation of said support frame relative to the wheel of each of the legs to the cot control system; and wherein said cot control system is configured to effect movement of legs at maximum power in response to the end of the actuator being detected at the second location and in response to the signal being present via manual operation of said user interface device. 9. The powered ambulance cot according to claim 1, wherein the actuator is a first actuator, the pair of the legs is a first pair of the legs, wherein the first actuator interconnects the first pair of the legs with the support frame, and wherein the cot actuation system comprises a second actuator which interconnects a second pair of the legs with the support frame, the cot actuation system being configured to effect changes in elevation of the support frame relative to the wheel of each of the legs via independent operation of the first and second actuators, and wherein the cot actuation system will equalize the elevation of the support frame between a loading end and a control end of the cot by the independent operation of the first and second actuator in response to the signal being present via manual operation of said user interface device, and while the end of the first actuator is in the first location. 10. The powered ambulance cot according to claim 9, wherein the cot control system further comprises a mode-selection button in which to cycle through and select a direct-power mode from a number of direct power modes, and wherein selection of a direct-power mode causes the cot actuation system to display the selection of the direct power mode graphically on a display of the cot control system and to not equalize the elevation of the support frame between the loading end and the control end of the cot by the independent operation of the first and second actuator in response to the signal being present via manual operation of said user interface device. 11. The powered ambulance cot according to claim 10, wherein one of the direct power modes is a both legs direct power mode which the selection of which causes the cot control system to change the evaluation of the support frame at both the loading end and the control end in response the signal being present via the manual operation of said user interface device. 12. The powered ambulance cot according to claim 11, wherein another one of the direct power modes is a loading end legs only direct power mode which the selection of which causes the cot control system to change the evaluation of the support frame at only the loading end in response to the signal being present via the manual operation of said user interface device. 13. The powered ambulance cot according to claim 12, wherein still another one of the direct power modes is a control end legs only direct power mode which the selection of which causes the cot control system to change the evaluation of the support frame at only the control end in response the signal being present via the manual operation of said user interface device. 14. The powered ambulance cot according to claim 13, wherein the cot control system reverts back to a normal operating state in which the cot control system will equalize the elevation of the support frame between the loading end and the control end of the cot by the independent operation of the first and second actuator in response to the signal being present via the manual operation of said user interface device after expiration of a countdown timer that was started after selection of the direct power mode and the signal not being present before the expiration of the countdown timer. 15. A method of transporting a patient above a surface comprising utilizing a powered ambulance cot according to claim 1.
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