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Medical patient support chairMedical patient support chair description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060290184, Medical patient support chair. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] The present invention relates broadly to furniture for people with special medical needs and more particularly to a bariatric chair with an adjustable seat assembly and is capable of translational movement along the surface. [0002] Bariatric chairs and other bariatric seating provide support for medical patents who may weigh between 500 and 1000 pounds. As may be expected, conventional furniture is not designed for such use. Bariatric chairs are designed to provide support for medical patients with such a need and wheeled versions allow medical attendants to move patients in the chairs. [0003] Bariatric seating should be comfortable for the patient and mobile bariatric seating should be comfortable for an attendant to use to transport a patient. Further, the level of adjustability available for bariatric seating should be extensive so that any individual person can be placed in a position that is most comfortable to him or her while allowing convenient ingress and egress. [0004] Security is also important to bariatric patients and a feeling of stability and support should be offered in such a seating environment. Imparting such a sense of secure stability to bariatric patients enhances the ability of a caregiver to deliver effective care under a reduced stress level. Enhanced stability is also effective in promoting patient self-reliance. [0005] There currently exists a need for bariatric seating that provides enhanced stability and support in a mobile seat with enhanced seat adjustability and control. SUMMARY OF THE INVENTION [0006] It is currently an object of the present invention to provide a chair for medical patients that will allow the seat bottom to be moved relative to the frame and independently of the seat back. [0007] It is another object of the present invention to provide a chair for medical patients that will allow the back to be moved relative to the seat bottom, and both separately therefrom and in tandem therewith. [0008] It is another object of the present invention to provide a chair for medical patients that will allow the seat bottom to move through various positions while maintaining the angular relationship between the seat bottom and the seat back all the while allowing the seat back to be selectively adjusted with respect to both the frame and the seat bottom. [0009] It is another object of the present invention to provide such a medical chair that is self-propelled for movement along a surface. [0010] To those and other ends, the present invention provides a chair for supporting medical patients, especially bariatric patients, including a skeletal frame and a seat assembly mounted to the frame. The seat assembly includes a seat base and a seat back, the seat base being pivotably mounted to the frame and the seat back being pivotably mounted to the seat base for relative movement of the seat assembly to the frame and relative movement of the seat back to the seat base and the frame. The present invention further includes a first movement inducing assembly mounted to the seat base and the frame and extending therebetween for moving the seat assembly relative to the frame; a second movement inducing assembly mounted to the seat base and the seat back and extending therebetween for selectively moving the seat back relative to the seat back and the frame, substantially independently of the first movement inducing assembly; and a motion control arrangement for operatively controlling the first and second movement inducing assemblies independently of one another for singular or tandem independent movement of the seat back and the seat assembly as necessary for medical patient comfort and care. [0011] Preferably, the present invention further includes a rolling ground support arrangement including rotatable wheels at substantially the outer reaches of the frame, mounted thereto and extending away from the frame for ground contact. It is preferred that the rolling ground support arrangement includes two casters supporting a rear portion of the chair and two fixed wheels supporting a front portion of the chair. It is further preferred that the rolling ground support arrangement includes two casters supporting a rear portion of the chair and two fixed wheels supporting a front portion of the chair, and further comprising a driving arrangement for moving the chair across a friction surface including at least one motor for driving the two fixed wheels, and a drive control arrangement for controlling the driving arrangement and thereby controlling translational movement of the chair. [0012] It is preferred that the driving arrangement include an assembly for driving each fixed wheel individually in either a clockwise manner or a counterclockwise manner, thereby allowing an operator to steer the chair during movement over a friction surface. Preferably, the assembly for driving each fixed wheel includes a drive motor mounted closely adjacent a respective fixed wheel and operatively connected thereto for selectively rotatably driving each fixed wheel individually, each drive motor being connected to the drive control arrangement for selective operation by an operator. It is preferred that the present invention further include a control stick for controlling the drive wheels for movement of the chair responsive to movement of the stick by an operator. The control stick may be movable between a rider control position and an attendant accessible position. [0013] It is preferable that the first and second movement inducing assemblies each include at least one piston/cylinder arrangement operatively associated with said first movement inducing assembly and said second movement inducing assembly. Preferentially, the motion control arrangement is configured to move the chair to a Trendelenburg Position responsive to a switch operatively associated with the movement inducing assemblies. [0014] The present invention can be described in greater detail as a chair for supporting medical patients including a skeletal frame and a seat assembly mounted to the frame and including a seat base and a seat back, the seat base being pivotably mounted to the frame and the seat back being pivotably mounted to the seat base for relative movement of the seat assembly to the frame and relative movement of the seat back to the seat base and the frame. The present invention further includes a first movement inducing assembly mounted to the seat base and the frame and extending therebetween for moving the seat assembly relative to the frame; and a second movement inducing assembly mounted to the seat base and the seat back and extending therebetween for selectively moving the seat back relative to the seat back and the frame, substantially independently of the first movement inducing assembly. Further, the present invention provides a motion control arrangement for operatively controlling the first and second movement inducing assemblies independently of one another for singular or tandem independent movement of the seat back and the seat assembly as necessary for medical patient comfort and care; and a rolling ground support arrangement including rotatable wheels at substantially the outer reaches of the frame, mounted thereto and extending away from the frame for ground contact. [0015] It is preferred that the rolling ground support arrangement includes two casters supporting a rear portion of the chair and two fixed wheels supporting a front portion of the chair. Preferably, the rolling ground support arrangement includes two casters supporting a rear portion of the chair and two fixed wheels supporting a front portion of the chair, and further comprising a driving arrangement for moving the chair across a friction surface including at least one motor for driving the two fixed wheels, and a drive control arrangement for controlling the driving arrangement and thereby controlling translational movement of the chair. [0016] The present invention further preferably includes, within the driving arrangement, an assembly for driving each fixed wheel individually in either a clockwise manner or a counterclockwise manner, thereby allowing an operator to steer the chair during movement over a friction surface. It is further preferred that the assembly for driving each fixed wheel includes a drive motor mounted closely adjacent a respective fixed wheel and operatively connected thereto for selectively rotatably driving each fixed wheel individually, each drive motor being connected to the drive control arrangement for selective operation by an operator. Preferably, the present invention further includes a control stick for controlling the drive wheels for movement of the chair responsive to movement of the stick by an operator. The control stick may be movable between a rider control position and an attendant accessible position. [0017] It is preferred that the first and second movement inducing assemblies each include at least one piston/cylinder arrangement operatively associated with said first movement inducing assembly and said second movement inducing assembly. [0018] Preferably, the motion control arrangement is configured to move the chair to a Trendelenburg Position responsive to a switch operatively associated with the movement inducing assemblies. [0019] The present invention can also be described in greater detail as a chair for supporting medical patients including a skeletal frame and a seat assembly mounted to the frame and including a seat base and a seat back, with the seat base being pivotably mounted to the frame and the seat back being pivotably mounted to the seat base for relative movement of the seat assembly to the frame and relative movement of the seat back to the seat base and the frame. Also included is a first movement inducing assembly mounted to the seat base and the frame and extending therebetween for moving the seat assembly relative to the frame and a second movement inducing assembly mounted to the seat base and the seat back and extending therebetween for selectively moving the seat back relative to the seat back and the frame, substantially independently of the first movement inducing assembly. The present invention further includes a motion control arrangement for operatively controlling the first and second movement inducing assemblies independently of one another for singular or tandem independent movement of the seat back and the seat assembly as necessary for medical patient comfort and care A rolling ground support arrangement is provided that includes two casters supporting a rear portion of the chair and two fixed wheels supporting a front portion of the chair, mounted thereto and extending away from the frame for ground contact. Further provided is a driving arrangement for moving the chair across a friction surface including an assembly for driving each fixed wheel individually in either a clockwise manner or a counterclockwise manner, thereby allowing an operator to steer the chair during movement over a friction surface, and a drive control arrangement for controlling the driving arrangement and thereby controlling movement of the chair. [0020] It is preferred that the assembly for driving each fixed wheel include a drive motor mounted closely adjacent a respective fixed wheel and operatively connected thereto for selectively rotatably driving each fixed wheel individually, each drive motor being connected to the drive control arrangement for selective operation by an operator. [0021] The present invention further preferably includes a control stick for controlling the drive wheels for movement of the chair responsive to movement of the stick by an operator. Also preferably included is an assembly for driving each fixed wheel individually in either a clockwise manner or a counterclockwise manner, thereby allowing an operator to steer the chair during movement over a friction surface wherein the control stick is movable between a rider control position and an attendant accessible position. The first and second movement inducing assemblies may each include at least one piston/cylinder arrangement operatively associated with said first movement inducing assembly and said second movement inducing assembly. The motion control arrangement is preferably configured to move the chair to a Trendelenburg Position responsive to a switch operatively associated with the movement inducing assemblies. BRIEF DESCRIPTION OF THE DRAWINGS Continue reading about Medical patient support chair... Full patent description for Medical patient support chair Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Medical patient support chair patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Medical patient support chair or other areas of interest. ### Previous Patent Application: Modular mechanism for office chairs and the like Next Patent Application: Locking device for office chairs and the like Industry Class: Chairs and seats ### FreshPatents.com Support Thank you for viewing the Medical patient support chair patent info. 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