Systems and methods for tracking unintentional muscle movements of a user and stabilizing a handheld tool while it is being used are described. The method may include measuring, with a first inertial measuring unit (IMU), at least an orientation of a housing of the handheld tool, and measuring, with a second IMU, at least an orientation or an attachment arm extending from the housing of the handheld tool. The method may also include storing the orientation of the housing and the orientation of the attachment arm in a memory. Furthermore, the method may include controlling, with a processing logic, a first motion generating mechanism and a second motion generating mechanism to move the attachment arm relative to the housing based on the measured orientation of the housing and the measured orientation of the attachment arm to stabilize motion of a user-assistive device attached to a distal end of the attachment arm.

A tool assembly having a housing body with a top portion and a bottom portion. The tool assembly may have an axis defined by the housing body and extending through the top portion and the bottom portion, an opening defined in the housing and extending from an outer surface of the housing body towards the axis, a notch defined in the housing along the opening, and a module base having a collar. Wherein the module base is positionable within the opening and when the collar is at least partially positioned within the notch, the module base is at least partially positioned within the opening and restricted from moving axially along the axis relative to the housing body.

An anti-tremor device including a tool unit, a carrying portion, and an anti-tremor module is disclosed. The tool unit is coupled or mounted on the carrying portion. The anti-tremor module is disposed on the carrying portion. The anti-tremor module includes a rotary transmission mechanism and a control module. The control module includes a sensing unit and a control unit. The sensing unit is coupled to the control unit, and the control module is coupled to the rotary transmission mechanism. When the sensing unit senses the tremor of the carrying portion, the control unit controls the rotary transmission mechanism to increase the inertia of the anti-tremor module to eliminate or reduce the tremor of the carrying portion.

A handheld tool includes a handle for holding by a user, an attachment arm extending from the handle that is configured to connect to a user-assistive device, a first inertial measurement unit (IMU) mounted to the attachment arm to acquire measurements of one or more of a motion or an orientation of the user-assistive device and to generate feedback data indicative of the measurements, an actuator assembly coupled to manipulate the user-assistive device via the attachment arm in at least two orthogonal dimensions, and a motion control system coupled to receive the feedback data from the first IMU and coupled to provide commands to the actuator assembly to provide auto-leveling of the user-assistive device to a frame of reference while the user manipulates the handheld tool.

A handheld tool includes a handle for holding by a user, an attachment arm extending from the handle that is configured to connect to a user-assistive device, a first inertial measurement unit (IMU) mounted to the attachment arm to acquire measurements of one or more of a motion or an orientation of the user-assistive device and to generate feedback data indicative of the measurements, an actuator assembly coupled to manipulate the user-assistive device via the attachment arm in at least two orthogonal dimensions, and a motion control system coupled to receive the feedback data from the first IMU and coupled to provide commands to the actuator assembly to provide auto-leveling of the user-assistive device to a frame of reference while the user manipulates the handheld tool.

Techniques and mechanisms for detecting and evaluating grip by a user operating a handheld tool. In an embodiment, the tool includes a handle, one or more pressure sensors disposed in or on the handle, and an attachment arm. An output from the one or more sensors is generated while a user-assistive device is coupled to a distal end of an attachment arm of the tool. Logic of the tool calculates a grip metric based on the sensor output, and the tool transmits, based on the grip metric, a signal including medical diagnostic information. In another embodiment, the user-assistive device includes a utensil attachment or a personal hygiene attachment.

A handheld device includes a base comprising a handgrip for receiving a vibration movement, a gripping element linked to the base for releasably connecting the handheld device to an object, at least one inertia sensor for detecting an acceleration of the vibration movement to generate an acceleration signal, a processing unit for determining to generate a cancellation decision according to the acceleration signal, and at least one actuator for controlling movement of the gripping element according to the cancellation decision, such that the acceleration is counteracted.

A partitioned tableware including abase (1), a wall (2) extending from the base (1) defining a first space gap (3), the wall (2) has a lower edge (20) and an upper edge (21), the lower edge (20) being tangent to the base (1), a lip (4) extending radially outwardly from the wall (2), and a first partitioning member (5) and a second partitioning member (6) with a second space gap (7) between them.

A dressing assistance device may include a rest frame structure for supporting a limb of a user, a guide rail disposed along a longitudinal direction of the rest frame structure, a mount support section movably connected to the guide rail, a garment mount section coupled to the mount support section for receiving attachment of a garment, a mount adjustment section coupled to the mount support section for adjusting a width of the garment mount section, and a motor coupled to the mount support section and the mount adjustment section. The motor may drive the mount support section to travel along the guide rail. The motor may drive the mount adjustment section to adjust the garment mount section between a closed position for receiving attachment of a garment and an open position that allows for insertion and removal of the limb of the user.