Sensor devices closely attached to a body of a user, and walking assist devices such sensor devices may be provided. For example, a sensor device including a sensor configured to sense physical information of the user, and a support configured to provide an elastic force to the sensor such that the sensor closely attached to the body regardless pf a movement of the user, and enable the sensor to sense the physical information of the user with relative accuracy may be provided.

A hemiplegic forearm function recovery training device includes a forearm mounting part (2) on which a forearm (S) is to be mounted. The forearm mounting part (2) includes a mounting body (20), an inner frame portion (2B), an outer frame portion (2A), and a control part. The mounting body (20) has a forearm fixing portion (22) on which the forearm (S) is mounted and a gripping mechanism (23) capable of being gripped by a hand of the forearm (S). The inner frame portion (2B) is fitted to the mounting body (20) and is rotatable around the forearm (S). The outer frame portion (2A) guides the inner frame portion (2B) in a rotation direction thereof. The control part performs a series of controls that repeatedly causes normal rotation, stop, reverse rotation, and stop of the inner frame portion (2B) while acquiring rotation angle information of the inner frame portion (2B). In the normal rotation the control part controls angular velocity or acceleration of the inner frame portion (2B) to stimulate a training target muscle of the forearm (S) and in the reverse rotation the control part provides resistance to the inner frame portion (2B) to sustain stimulation to the training target muscle to maintain muscle tone.

An apparatus (10) for the rehabilitation, assistance and/or augmentation of arm strength in a user (U) comprises a support arrangement (12) for supporting the apparatus (10) on the user (U), a linkage arrangement (14) coupled to the support arrangement (12) and for coupling to an arm (A) of the user (U), and an actuation arrangement (16) for operating the linkage arrangement (14) and thereby manipulating the user's arm (A) in response to a user input signal.

The present disclosure is relates to an orthosis device. The orthosis device, in one embodiment, includes an actuator housing, and an electric motor coupled to the actuator housing, the electric motor including a motor stator and a motor rotor, and the electric motor further having high output torque. The orthosis device, in this embodiment, further includes a low-ratio transmission coupled to the actuator housing, the transmission including a gear system coupled to the actuator housing, and a drive system coupling the electric motor and the gear system, wherein a combination of the electric motor and transmission provide a user backdrivable orthosis device.

A percussive massage device includes an upper half housing, an electric motor, a lower half housing, and a handle. In response to activating the motor, the eccentric counterweight rotates. And in turn, the link converts the rotational motion of the counterweight into a reciprocating linear motion of the follower. The application head strongly moves back and forth to treat body stress or pain of a user.

A percussion massager comprises a motor, a reciprocating assembly, a mallet, a power source, a housing, and a fixing frame. The motor, the reciprocating assembly and the power source are operably arranged in the housing. The motor comprises a main body and a first rotary shaft. Part of the mallet is not located in the housing. The first rotary shaft of the motor is operably mechanically connected with the reciprocating assembly. The reciprocating assembly is mechanically connected with the mallet. The fixing frame is installed in the housing. The main body of the motor and the reciprocating assembly are installed on the fixing frame. The main body of the motor and the reciprocating assembly are installed in the housing via the fixing frame only. When the motor is electrically connected with the power source, it rotates to drive the reciprocating assembly to reciprocate under the driving of the power source, thereby driving the mallet to make reciprocating linear motion for repeated striking.

A wearable lower extremity exoskeleton for regenerating a lower body motion functionality of paraplegic patients is provided. The wearable lower extremity exoskeleton has four active DOF and each DOF provided by an actuator disposed around a hip level and a back and/or a front of a user and provided by articulations.

An underactuated mechanism has a first rotoidal joint connected to a human torso and rotating about a first joint rotation axis, a hyper-redundant connection mechanism connected to the first rotoidal joint, and a second rotoidal joint rotating about a second joint rotation axis, coplanar with the first joint rotation axis. The second rotoidal joint is remotely actuated by a driven pulley and Bowden cables or by a direct drive actuation system with co-located motor, and is fixed to the hyper-redundant connection mechanism on one side and to a human arm on the other side. The hyper-redundant connection mechanism has at least three members. Two members of the at least three members are rigidly fixed to one of the rotoidal joints, respectively. All members are connected together by rotation joints with axes parallel to one another and arranged to connect one member to a successive member to form a rotation constraint.

An apparatus and method for applying caresses and massages, comprising an apparatus composed of a fixed lower section, which acts as a base, contains the lifting mechanisms, and houses a movable upper section, with a housing that accommodates the rest of the components of the device; a SCARA-type deployable robotic arm housed in the upper section and composed by a plurality of staggered parallel links and articulated at their ends by a power transmission mechanism comprised by motors with belts placed on pulleys coupled to concentric hollow shafts. The upper section is placed on a sliding and rotary platform that supports and guides it on the vertical axis through a vertical lead screw lifting mechanism, also allowing it to rotate on its own axis. The apparatus performs the movements by implementing a method of preset caress and massage patterns assisted by artificial intelligence and guided by several sensors.

Techniques and devices for extending a piston and/or compression unit, for example connected to a medical device such as a mechanical CPR device, to accommodate different sized patients, are described herein. In some cases, a piston of a mechanical CPR device may include an inner piston at least partially slidable into an external piston sleeve. In one aspect, some aspects, the piston includes sleeves which can move relative to each other to extend the piston. In additional aspects, the compression mechanism may also extend downward toward the patient. In all aspects, the change in length of the piston may be detected and used to modify movement of the piston, for example to more safely perform mechanical CPR.