This massage head includes a housing, having two active members emerging from the lower surface thereof, having its free lower edge, opposite to the housing, intended to be in contact with a patient's skin. One at least of said active members is formed of a flap hinged within the housing and capable of being pivoted to bring the lower edges of said active members closer to each other or draw them away from each other, the relative displacement of said at least one flap being ensured by means of a rotary cam formed within the housing, the rotation axis of the cam being oriented substantially parallel to the displacement direction of said at least one flap. The cam includes at least one cam track formed on its periphery, intended to cooperate with the flap support(s), having one or their ends hinged in the housing.

A wearable apparatus for assisting muscular strength includes a back support, and a connection chain having a first end portion coupled to the back support to be rotatable upward or downward. The connection chain extends from the back of the wearer to a side thereof and includes a plurality of rotary elements arranged abreast laterally, each rotary element being rotatably coupled to an adjacent rotary element laterally. The wearable apparatus further includes an upper arm module that extends in a direction in which an upper arm of the wearer extends, one end portion of the upper arm module coupled to a second end portion of the connection chain to be rotatable upward or downward with respect to the one end portion. The upper arm module generates a rotational force for rotating the upper arm of the wearer upward or downward.

A telescopic impact sperm collector includes an outer cup body, a soft cup body, and an inner cup body, a transmission mechanism and a drive mechanism which are installed in the outer cup body. The soft cup body has a massage cavity with a front opening; both ends of the soft cup body are connected to a cup mouth of the outer cup body and the inner cup body respectively; the drive mechanism includes a brushless motor; the transmission mechanism includes a mandrel and a cam; the mandrel has an end hinged to a rear end of the inner cup body and the other end transmissively connected to the brushless motor through the cam; the inner cup body can be driven by the brushless motor to slide back and forth in the outer cup body.

This invention is about a detection device based on the piezoelectric property of geological minerals. The device has a vibration detector for compressing geological minerals to generate charges, so as to detect vibration and a physiotherapy jacket for carrying out quantitative physiotherapy on a human body by detecting the amount of charges. The system has the advantages of: being simple in structure, comprising the vibration detector and the physiotherapy jacket, using the piezoelectric property of geological minerals such as quartz and tourmaline, so as to realize detection of environmental vibration indoors, underground or in the field, and improving the safety factor of geological exploration operations.

Embodiments of the present disclosure provide a suction device. The suction device includes a hollow body, an accumulator assembly and a drive mechanism. The accumulator assembly includes a first support structure and a second support structure, a plurality of connecting members and a flexible element. Each of the plurality of connecting members is mounted to the first and second support structures along circumference portions of the first and second support structures. The flexible element is disposed in a space defined by the first and second support structures and the plurality of connecting members. Further, the drive mechanism is configured to operate the flexible element to a compressed state and a retracted state by driving the second support structure between a first position and a second position relative to the first support structure, respectively.

The invention provides a cam for an unpowered multi joint synchronous training device, wherein the cam has a circular main body, a cam slot is disposed on a first side surface of the circular main body, and a contour of the cam slot is configured such that rotational movement of the cam drives a follower provided in the cam slot to perform variable-speed reciprocation motion along a predetermined horizontal axis, wherein for each rotation of the cam, the follower performs reciprocating motion once between a first position and a second position; the first position and the second position are respectively positions of the follower along the horizontal axis when the follower is at positions of the contour closest to, and farthest from, a center of the circular main body; and the reciprocating motion drives a driven object connected to the follower to perform variable-speed oscillation within a range of an angle. The invention further provides a non-circular gear pair for an unpowered multi joint synchronous training device, a method of manufacturing the cam and the non-circular gear pair, a transmission mechanism using the cam and the non-circular gear pair, and an unpowered multi joint synchronous training device using the transmission mechanism.

A massage roller assembly that includes a cylindrical main body portion that defines a roller axis and includes an outer roller surface and that includes a plurality of massage members. A plurality of radially extending tunnels are defined in the cylindrical main body portion and through the outer roller surface. The massage members are associated with the cylindrical main body portion and are each configured to reciprocate in a radial direction between a stowed position and a deployed position. In the deployed position at least a portion of the first and second massage members are positioned radially outwardly of the cylindrical main body portion.

Provided is a biometric signal measurement device for a massage apparatus, in which an electrode for acquiring a biometric signal of a user acquires the biometric signal while vertically moving in contact with a plantar part of the user, and at the same time, massages the plantar part, thereby improving a massage effect. The biometric signal measurement device for a massage apparatus includes a base part on which a foot of a user is placed, an electrode part that is made of a conductive material, is installed in the base part to be vertically movable, and acquires a biometric signal while in contact with a sole of the user placed on the base part, an electrode driving part that vertically moves the electrode part, and a controller that is electrically connected to the electrode part and analyzes biometric information of the user through the biometric signal acquired by the electrode part.

A bodyweight unloading locomotive device includes a frame configured to support locomotive movement, and an unloading assembly carried by the frame. The unloading assembly includes a spring having a fixed end coupled to the frame and an opposed free end, a cam assembly mounted to the frame for rotational movement, a first tether extending from the free end of the spring to the cam assembly, and a second tether extending from the cam assembly to a load. The unloading assembly exerts an unloading force on the load with respect to the frame.