43 results about "Hip rotation" patented technology

In order to achieve a walking assistance device that can be securely fitted to the user's body while allowing a certain degree of freedom, a walking assistance device is provided comprising a hip joint rotational force generator (hip joint actuator 10) mounted on a side of a hip joint and a knee joint rotational force generator (knee joint actuator 26) mounted on a side of a knee joint to provide an assisting force to a movement of a lower limb, wherein the hip joint rotational force generator is fitted to the body via a first linkage means (link plate 30) having at least two degrees of freedom, and wherein the hip joint rotational force generator and the knee joint rotational force generator are connected to each other via a second linkage means (link bar 25) having an expandable and contractable means. In this way, deformation in lateral and torsional directions of the first linkage means and expansion / contraction of the second linkage means can absorb a deviation in position between the joints of the user's body and the assisting force generators.

The invention discloses a method for folding wearable lower limb assisting robots. The method is characterized by comprising detaching leg following support elastic components from assisting mechanical legs, and sequentially outwardly turning hinge centers of the upper end edges of hip joint rotation limiting discs and the lower portions of bosses by 90-degree angles by the aid of thigh folding components and shank folding components; outwardly and oppositely folding the assisting mechanical legs at the shank folding components; inwardly and oppositely folding the assisting mechanical legs at the thigh folding components; obtaining portable bodies of the wearable lower limb assisting robots. The wearable lower limb assisting robots are in initial states when central connecting lines of thigh connecting rods and shank connecting rods are at mutual coincidence positions. The method has the advantages that the wearable lower limb assisting robots can be turned into the portable bodies with compact structures and can be used with loading and transporting trolley cases, so that users can conveniently carry and store the wearable lower limb assisting robots in various modes, and daily activity and nursing requirements such as walking and stair ascending and descending of the users can be effectively met.

The present invention relates to a mobile training device having bi-directional, variable resistive forces for training a baseball swing and other sports involving weight transfer and hip rotation.

A golf training device includes an elongated pointer shaft having a proximal end and a distal end. A connector is adapted to fasten to a golfer's waist, where the proximal end of the elongated pointer shaft is attached to the connector and the distal end is free to encroach into an inside downward path of the golfer. An elbow swing alignment element upwardly protrudes from the elongated pointer shaft between the proximal end and the distal end. The elongated pointer shaft and elbow swing alignment element are located so that the elbow swing alignment element contacts the golfer's inside elbow when crooked, thus providing a corrective indication.

The invention relates to a self-contained lower limb walking aid, which consists of waist support frames, thigh support rods, calf support rods, foot support plates, hip joint rotating pairs, knee joint rotating pairs, ankle joint rotating pairs, hip joint driving mechanisms, knee joint driving mechanisms, thigh fastening belts, and calf fastening belts, which are arranged symmetrically left and right. The invention has the advantages that: the self-contained lower limb walking aid has a scientific and reasonable structural design, can assist crural paralysis patients in standing and walking,is stable in operation, reliable in support, easy to manufacture and low in cost, is a walking aid with higher innovativeness, and has wide market prospect.

An exoskeleton can be reconfigured, adjusted and / or controlled on the fly utilizing devices which fall into three categories, particularly including a swappable unactuated leg, lockable transverse and coronal hip rotations, and software controlled free joints. More specifically, the first device allows for the creation of a modular joint system in which individual exoskeleton joints or limbs can be changed or swapped to optimize an exoskeleton for a particular user. The second device is concerned with mechanically controlling, such as locking and unlocking, joints thereby allowing, for example, an exoskeleton leg to pivot or not pivot in an axis that is not actuated. The third device allows an actuated exoskeleton joint to be adjusted on the fly using software to simulate a freely rotating joint. The various devices can be used either alone or in combination to enable any given exoskeleton to be appropriately reconfigured, such as when a patient advances during therapy.

The invention belongs to the technical field of humanoid service robots, and particularly relates to a hip joint structure and a humanoid robot. In the hip joint structure, the mounting positions of ahip rotation driving piece and a hip side driving piece which are heavy are raised to a hip joint framework, the hip joint framework is driven to rotate through the hip rotation driving piece, powerof the hip side driving piece is transmitted to a thigh through a hip side transmission assembly to enable the thigh to move, and therefore, the weight and rotational inertia of the whole structure are reduced, the gravity center of the robot is effectively increased, and power needed by the hip joint is effectively reduced. The humanoid robot adopts the hip joint structure. The rotational inertiaof the hip joint structure is reduced, so that the power required by the hip joint structure is effectively reduced.

A sports training aid is provided that includes a base, a support structure and a top portion. The base structure may support the support structure and the top portion in an upright position when placed on a surface. The top portion includes a first side and a second side with extensions extending towards a user. A waist boundary is formed in between the extensions. Therefore, a user may position their waist within the extensions and practice a swing. The extensions of the sports training device may provide proper restriction and thereby train a user to have a proper hip rotation.

Systems and methods are described herein to calculate implant orientation measurements of an acetabular cup implant in hip replacement surgery, such surgery performed with minimally invasive incisions. Surgeons may obtain real-time updated implant orientation measurements that compensate for pelvic tilt of a patient, such tilt measured pre-operatively. Implant orientation measurements may be measured from the patient's anterior pelvic plane, supine coronal plane, standing coronal plane or any other reference plane that the surgeon may find useful. Also disclosed are systems, methods and devices to measure hip center of rotation and provide leg length and offset measurements in hip replacement surgery.