19 results about "Powered wheelchairs" patented technology

A remotely controlled powered chair may include a support frame, a seat pivotally mounted on the support frame, an rotary actuator mounted between the support frame and the seat to drive the seat to move relative to the support frame, a backrest pivotally mounted on the seat, and a linear actuator mounted between the seat and the backrest to drive the backrest to move relative to the seat. Thus, the rotary actuator may be controlled by an electrically control device to drive the seat to pivot relative to the support frame reciprocally in a pendulum manner so that the seat is pivoted relative to the support frame automatically. In addition, the linear actuator may be controlled by the electrically control device to adjust the inclined angle of the backrest so as to provide a comfortable sensation to the user.

An apparatus for powering a manual wheelchair with rear wheels that includes a motor and pair of powered drive wheels, with each powered drive wheel in contact with a respective rear wheel of the manual wheelchair. Some embodiments of the powered apparatus include a piston assembly coupled to each of the powered drive wheels, whereby movement of the piston assembly to a disengaged position ceases motorized control of the wheelchair. The piston assembly may also be utilized as a “build-in” emergency stopping feature for motorized wheelchairs. A controller for operating the powered apparatus also is contemplated.

A new and improved powered chair is provided with an anti-pinch system which comprises an angular sensor mounted upon the footrest assembly for detecting angular movement of the footrest assembly, from a horizontal mode to a vertical mode, prior to the footrest assembly encountering a seat assembly of the chair, which would indicate that the footrest assembly has encountered a foreign object, whereby the angular sensor can emit a control signal so as to terminate / reverse movement of said footrest support assembly. Anti-pinch sensor strips can also be used in conjunction with the angular sensor.

The utility model discloses a telescopic rotary armrest of an electric wheelchair, which comprises an armrest body, an elliptical tube support and a telescopic rod, the telescopic rod is arranged in the elliptical tube support in a penetrating manner, one end of the telescopic rod is hinged with the armrest body, and the other end of the telescopic rod is hinged with the elliptical tube support. The armrest further comprises a locking assembly used for locking the armrest body and the oval tube support. According to the utility model, the handrail main body with the triangular structure is connected with the elliptical tube bracket, so that the bearing capacity of the handrail is ensured, the handrail main body is connected through the internal telescopic rod, the lifting and overturning functions of the handrail main body are provided, the structure is effectively simplified, the operation complexity is reduced, and the jamming condition is reduced; and the locking assembly is arranged, so that the overall structural bearing strength of the armrest is further improved, and the boundary operation experience of the user on armrest state switching is provided.

Methods, systems, and techniques for controlling posture by using eye gaze technology and other interfaces to facilitate position changes in seating, such as in a wheelchair or bed, are provided. Example embodiments provide an Eye Gaze Posture Control System (“EGPCS”) which enables people with advanced motor neuron diseases or disabilities like amyotrophic lateral sclerosis or muscular dystrophy to use eye gaze technologies to control their seating and bed positioning. In one embodiment, the example EGPCS comprises a posture and pressure advisor, logging and telemetry logic, a posture control application, device interface(s) to one or more other devices that control aspects of the powered wheelchair or bed, and eye gaze actuation control. These components cooperate to adjust position of a seat or a bed using eye gaze technology as opposed to by a virtual cursor or by manual control.

A voice-controlled wheelchair system, consisting of: a motorized wheelchair platform (101); a speech recognition module (102) configured to capture and interpret spoken commands; a microcontroller-based control unit (103) that communicates with the speech recognition module; and Drive mechanisms (104) that respond to the control unit to execute direction and speed control based on the recognized commands.

A system for controlling power assistance to a user-propelled wheelchair having wheels and at least one motor drivingly engaged to one or more driving wheel of the wheels, the system having: a controller having a processing unit and a non-transitory computer-readable medium operatively connected to the processing unit and having stored thereon instructions executable by the processing unit for: determining, based on signals received by the controller, a commanded state of operation of the wheelchair desired by the user of the wheelchair; quantifying an assistive power to be transmitted to the one or more driving wheel based on the commanded state of operation; and adding the assistive power to the one or more driving wheel with the at least one motor.

A remotely controlled powered chair may include a support frame, a seat pivotally mounted on the support frame, an rotary actuator mounted between the support frame and the seat to drive the seat to move relative to the support frame, a backrest pivotally mounted on the seat, and a linear actuator mounted between the seat and the backrest to drive the backrest to move relative to the seat. Thus, the rotary actuator may be controlled by an electrically control device to drive the seat to pivot relative to the support frame reciprocally in a pendulum manner so that the seat is pivoted relative to the support frame automatically. In addition, the linear actuator may be controlled by the electrically control device to adjust the inclined angle of the backrest so as to provide a comfortable sensation to the user. A remotely controlled powered chair may include a base assembly. A chair frame is supported on the base assembly. An actuator mechanism may communicate with the base assembly and the chair frame, and is operable to actuate the chair frame between first and second positions.

The present invention provides a modular system to integrate with existing motorized wheelchairs, allowing the wheelchair to autonomously track and follow a patient during physical therapy sessions and other mobility-related activities. This reduces the need for manual assistance, allowing the wheelchair to follow the patient without additional staff involvement. The invention comprises an add-on containing two adjustable arms that attach to the wheelchair's existing joystick or control stick and is equipped with a camera and software that autonomously tracks the patient's movements. The wheelchair's motion (forward, backward, left, right) is controlled by the module, based on real-time visual feedback from the camera targeting the patient.

A powered chair comprises a chair framework, which includes a pair of oppositely disposed armrests, a chair seat frame which is fixedly connected to the pair of armrests, a footrest, a backrest, a first linear actuator mounted upon the pair of armrests and operatively connected to the footrest, and a second linear actuator mounted upon the armrests and operatively connected to the backrest. When the first and second linear actuators are actuated, they can respectfully actuate or move the footrest and backrest, however, in view of the fact that the first and second linear actuators are not operatively connected to the chair seat frame, and in view of the additional fact that the chair seat frame is fixedly mounted upon the pair of armrests, the chair seat frame will remain stationary despite movements of the footrest and backrest, to any one of their multiple positions, as a result of the actuation of the first and second linear actuators.

To provide a system that includes a powered wheelchair, a user-worn exoskeleton and a master controller.SOLUTION: A master controller monitors independent movement of the powered wheelchair and the user-worn exoskeleton. The master controller prioritizes the movement of the powered wheelchair and the user-worn exoskeleton such that only one of the powered wheelchair and the user-worn exoskeleton will have the priority in completing the intended movement. The master controller may coordinate movement between the powered wheelchair and the user-worn exoskeleton so as to perform a plurality of predetermined programs; e.g., assist a user in sitting in the powered wheelchair, assist a user in standing up from a seating position when outside the powered wheelchair, and / or use the powered wheelchair as a guide for walking.SELECTED DRAWING: Figure 1A

Methods, systems, and techniques for controlling powered wheelchairs, beds, vehicles, and similar devices using augmented reality technology are provided. Example embodiments provide an Eye Gaze Enabled Augmented Reality Control System, which enables people living with motor neuron disabilities like ALS, Muscular Dystrophy, or Spinal Cord Injury to use the full capabilities of their personal computing devices in an integrated fashion with eye gaze technology without a need to use a separate dedicated medical device for controlling their powered wheelchair and adjusting their seating and bed positions. Example embodiments comprise a bridge device, a power device, an eye gaze enabled augmented reality device and a powered device which cooperate to provide an intermediate communications bridge between the consumer electronics side of the system and the safety critical control side of the system.

The utility model discloses an electrically powered wheelchair handle brake, which relates to the technical field of electrically powered wheelchairs, and comprises a brake box, the rear side of the brake box is provided with a dismounting assembly, the brake box is internally provided with a brake locking mechanism for braking and locking a wheelchair, and the brake locking mechanism comprises a locking assembly, a handle assembly and a handle assembly, a user pushes a handle to drive a rotating shaft and a cam to rotate, the cam pushes a push plate, the push plate extrudes a second spring, the push plate pushes a mounting plate, a fixing plate and a brake pad through a moving column, the brake pad makes contact and friction with wheels of the wheelchair, and the wheelchair is braked; when the handle is pushed, the pawl and the ratchet wheel are meshed and separated, when the handle stops pushing, the pawl and the ratchet wheel are meshed, and the cam is locked through the ratchet wheel, so that the wheelchair is locked, and the wheelchair stops moving.

A wheelchair having at least one force element that is elastically deformable, wherein deformation of the at least one force element becomes more and more intense with the application of increasing force, resulting in natural damping of the coupled-in force, which may be detected by a sensor such that the wheelchair according to the invention may be controlled in a targeted manner for fine movements as well as for faster, coarser movements.

A sprocket with a side flange for a toothed belt system, such as for mobile applications such as bicycles, electric bicycles or electric bicycles, electric wheelchairs, scooters, and the like, has a bi-directional debris removal element that directs debris (e.g., soil, dust, water, and the like) laterally outward from the sprocket. The sprocket has at least one side flange that is discontinuous along its length. For some sprockets having flanges on each side, the flanges alternate between two sides; the alternating side flanges may be in a symmetric arrangement or an asymmetric arrangement.