An improved wheelchair lift-transfer device provides capabilities for a patient or caregiver to independently control the wheelchair and lift functions to elevate and move about safely. The patient can use a handheld wireless remote control and summon their wheelchair lift-transfer device from acros
An improved wheelchair lift-transfer device provides capabilities for a patient or caregiver to independently control the wheelchair and lift functions to elevate and move about safely. The patient can use a handheld wireless remote control and summon their wheelchair lift-transfer device from across the room, to their bedside, then independently transfer into the device and then drive it about in their home, raising and lowering their body as needed.
대표청구항▼
1. A patient transport device comprising: a horizontally disposed wheeled base comprising a pair of horizontally disposed wheel support arms each having a wheel mounted near a rear arm end thereof and wherein the other front arm end of each one of said wheel support arms is attached to a lifting str
1. A patient transport device comprising: a horizontally disposed wheeled base comprising a pair of horizontally disposed wheel support arms each having a wheel mounted near a rear arm end thereof and wherein the other front arm end of each one of said wheel support arms is attached to a lifting structure comprising a pair of substantially vertical lifting columns and a frame structure including upper and lower portions disposed therebetween wherein said frame structure sidewardly spaces apart said lifting columns and one each of said pair of wheel support arms, wherein said frame structure holds said lifting columns in substantially vertical orientation, thereby forming a lifting structure and wherein said lifting structure has at least one wheel attached thereto, whereby said patient transport device is rollingly supported by said wheels to permit rolling across a supporting surface and wherein each of said lifting columns comprise double telescoping tubular structures each including a non-extendable lower guide tube, wherein said non-extendible guide tubes are rigidly connected together by said lower portion of said frame structure proximate a front end of said base, an upwardly extendable middle guide tube telescoping from the non-extendible guide tube, and an upwardly extendable upper guide tube telescoping from the middle guide tube and wherein each one of said upper guide tubes are connected together near the upper end thereof by said upper portion of said frame structure and wherein each said upper guide tube includes a patient lifting arm attached near the upper end thereof, wherein each one of said patient lifting arms extends substantially parallel to the other one of said patient lifting arms in a rearward direction and substantially above one of said wheel support arms and wherein said patient lifting arms define a rearward-opening space for receiving and supporting the patient in a forward facing orientation, and said upper guide tubes are lifted by a double telescoping jack screw arrangement disposed within each of said telescoping columns. 2. A patient transport device as in claim 1 wherein the space between said wheels of said pair of wheel support arms is adjustable independently of the space between said pair of lifting columns. 3. A patient transport device as in claim 1 wherein said patient lifting arms support an articulating patient support frame; said support frame including attachments for supporting a torso of a patient and attachments for supporting the patient's lower legs and feet. 4. A patient transport device as in claim 1 wherein the open width between said pair of lifting columns including respective wheel support arms and wheels and the open height between said supporting surface and said lower portion of said frame structure is adequate for clear passage of a small adult patient's two legs when said patient is positioned with legs substantially parallel to said supporting surface and said wheel support arms. 5. A patient transport device of claim 1 wherein said wheels allow forward, rearward and sideward motion of said transport device on said supporting surface. 6. A patient transport device comprising: a horizontally disposed wheeled base comprising a pair of horizontally disposed wheel support arms each having a wheel mounted near a front arm end thereof wherein each said wheel allows forward, rearward and sideward motion of said wheeled base and wherein the other rear arm end of each one of said wheel support arms is attached to a lifting structure comprising a pair of substantially vertical lifting columns and a frame structure including upper and lower portions disposed therebetween wherein said frame structure sidewardly spaces apart said lifting columns and one each of said pair of wheel support arms, wherein said frame structure holds said lifting columns in substantially vertical orientation, thereby forming a lifting structure and wherein said lifting structure has a pair of electric power driven wheels attached, whereby said patient transport device is rollingly supported by said wheels to permit rolling across a supporting surface and wherein the speed of each said electric power driven wheel is controlled by an electronic controller while supporting a patient and wherein each of said lifting columns comprise double telescoping tubular structures including a non-extendable lower guide tube, wherein said non-extendible guide tubes are rigidly connected together proximate a front of said base by said lower portion of said frame structure, an upwardly extendable middle guide tube telescoping from the non-extendible guide tube, and an upwardly extendable upper guide tube telescoping from the middle guide tube and wherein each one of said upper guide tubes are connected together near the upper end thereof by said upper portion of said frame structure and wherein each one of said upper guide tubes includes a patient lifting arm attached near the upper end thereof and extending rearwardly to define a rearwardly-opening space for receiving and supporting a patient in a forward facing orientation, wherein each one of said patient lifting arms extends substantially parallel to the other one of said patient lifting arms and substantially above one of said wheel support arms and wherein said upper guide tubes are lifted by a double telescoping jack screw arrangement disposed within each of said telescoping columns. 7. A patient transport device as in claim 6 wherein the space between said pair of wheel support arms is adjustable independently of the space between said pair of lifting columns. 8. A patient transport device as in claim 7 wherein at least one of said wheel support arms is connected to said lifting structure by a 4-bar linkage arrangement to allow said space adjustment. 9. A patient transport device as in claim 6 wherein the direction and speed that said patient transport device rolls across a supporting surface is remotely controllable by an electronic wireless transmitting controller. 10. A patient transport device as in claim 6 wherein said frame structure includes a caregiver support surface that allows a caregiver to be transported on said patient transport device while transporting said patient. 11. A patient lift transport device comprising: a horizontally disposed wheeled base, said wheeled base supporting a lifting structure for substantially vertical lifting and lowering of a patient; said lifting structure including support bearing surfaces and a substantially horizontally oriented U-shaped lifting frame near the upper end thereof which has a U-shape for supporting the patient and wherein said bearing surfaces support and guide a curved portion of said U-shaped lifting frame in a substantially horizontal arcing motion about a substantially stationary vertical axis such that said lifting frame is movable horizontally between first and second orientations and wherein said patient is supported by and moves with said U-shaped lifting frame, said vertical axis being stationary relative to said wheeled base and said lifting frame having an open side defined by said U-shape which opens rearwardly in said first orientation and sidewardly in said second orientation while said patient faces forwardly in said first orientation and sidewardly in said second orientation. 12. A patient lift transport device as in claim 11 wherein said horizontally disposed wheeled base includes at least three wheels, and wherein said lifting structure comprising at least one lifting column and wherein said wheeled base holds said lifting column in substantially vertical orientation and wherein said lifting column comprises a telescoping tubular structure including a non-extendable lower guide tube and at least one upwardly extendable upper guide tube. 13. A patient lift transport device as in claim 11 wherein said U-shaped lifting frame is rotated about said substantially vertical axis by force from an electric drive motor. 14. A patient transport device comprising: a horizontally disposed wheeled base comprising a pair of horizontally disposed wheel support arms each having a wheel mounted near one end thereof and wherein the other end of each one of said wheel support arms is attached to a lifting structure comprising a pair of substantially vertical lifting columns and a frame structure including upper and lower portions disposed therebetween wherein said frame structure sidewardly spaces apart said lifting columns and one each of said pair of wheel support arms, wherein said frame structure holds said lifting columns in substantially vertical orientation, thereby forming a lifting structure and wherein said lifting structure has at least one wheel attached thereto, whereby said patient transport device is rollingly supported by said wheels to permit rolling across a supporting surface and wherein each of said lifting columns comprise double telescoping tubular structures each including a non-extendable lower guide tube, wherein said non-extendible guide tubes are rigidly connected together by said lower portion of said frame structure, an upwardly extendable middle guide tube and an upwardly extendable upper guide tube and wherein each one of said upper guide tubes are connected together near the upper end thereof by said upper portion of said frame structure and wherein each said upper guide tube includes a patient lifting arm attached near the upper end thereof, wherein each one of said patient lifting arms extends substantially parallel to the other one of said patient lifting arms and substantially above one of said wheel support arms and wherein said upper guide tubes are lifted by a double telescoping jack screw arrangement disposed within each of said telescoping columns, wherein a first space between said wheels of said pair of wheel support arms is adjustable independently of a second space between said pair of lifting columns, wherein at least one of said wheel support arms is connected to said lifting structure by a 4-bar linkage arrangement to allow said space adjustment of said first space.
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이 특허에 인용된 특허 (14)
White,Elizabeth Ann; Wawrzynowski,Michael, Apparatus for patient mobility.
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