摘要:
Prosthetic devices and, more particularly, modular myoelectric prosthesis components and related methods, are described. In one embodiment, a hand for a prosthetic limb may comprise a rotor-motor; a transmission, comprising a differential roller screw; a linkage coupled to the transmission; and at least one finger coupled to the linkage. In one embodiment, a component part of a wrist of a prosthetic limb may comprise an exterior-rotor motor, a planetary gear transmission, a clutch, and a cycloid transmission. In one embodiment, an elbow for a prosthetic limb may comprise an exterior-rotor motor, and a transmission comprising a planetary gear transmission, a non-backdrivable clutch, and a screw.
摘要:
A control method for an arm prosthesis having at least one powered joint and at least one inertial measurement sensor (IMS) includes determining a motion and an orientation of the arm prosthesis relative to the inertial reference frame based at least on an output of the IMS and generating control signals for the at least one powered joint based on the motion and the orientation of the prosthetic arm.
摘要:
An artificial elbow for upper arm strump has an elbow cap (2) linked by an articulated axle (3) to a forearm (1) designed as a hollow plastic part. The elbow cap may be locked in various bend positions by a catch mechanism. The proximal link to the upper arm shaft is established by a cast ring (4) and an upper arm hinge (7-15) allows the forearm (1) to adjustably swivel. In order to allow this elbow to be used with upper arm stumps of all lengths, the upper arm hinge (7-15) is designed as a ring bearing and the catch mechanism is a traction catch (23-16) located outside the elbow cap (2) and integrated in a revolving joint (19-22) that forms a section of the articulated axle.
摘要:
Un coude artificiel pour moignon de la partie supérieure du bras comprend une calotte cubitale (2) reliée par un axe d'articulation (3) à l'avant-bras (1) constitué par une pièce creuse en matière plastique. Le coude artificiel peut être verrouillé dans différentes positions fléchies par un dispositif d'arrêt à crans. La liaison proximale avec la partie supérieure du bras est assurée par une bague coulée (4) et une articulation tournante (7-15) de liaison avec la partie supérieure du bras permet de faire tourner l'avant-bras (1) de manière réglable. Pour que ce coude artificiel soit utilisable avec des moignons de la partie supérieure du bras de toutes les longueurs, l'articulation tournante (7-15) de liaison avec la partie supérieure du bras est constituée par un palier annulaire et le dispositif d'arrêt à crans est un dispositif d'arrêt travaillant par traction (23-16) situé à l'extérieur de la calotte cubitale (2) et intégré dans une articulation tournante (19-22) qui forme une section de l'axe d'articulation.
摘要:
The invention relates to an assist arm intended to be fitted on an exoskeleton, having a mounting plate (2) carrying a drive member (20), a shoulder segment (4) articulated on the mounting plate, an arm segment (6) having a proximal end articulated on the shoulder segment, a forearm segment (8) having a proximal end articulated on a distal end of the arm segment, an actuating cable (27) driven by the drive member and forming two strands (27a, 27b) which extend parallel to the first axis in order to pass through the first articulation and to wind around a receiving pulley (30) which is mounted in a rotating manner about the second axis and which rotates as one with the arm, and connecting means (31, 32, 33) coupled between the shoulder segment and the forearm second segment and arranged such that a flexion of the arm segment causes a concomitant flexion of the forearm segment.
摘要:
A visco-elastic polymer liner (150) for use in donning over a residual limb (26) and fitting within the socket (146) of an artificial limb (140). The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb. The liner may have imbedded on its inner cavity side electrodes (152,154) adjacent muscles (38,40) that are sensitive to the muscle action potentials to generate signals to a power source to move an articulable artificial limb. The liner may take the shape of a tube to be donned over a paralyzed limb similarly having electrodes imbedded in its inner cavity side adjacent neuromuscular junctions which are connected to a muscle action potential generator to activate flexion and extension of the paralyzed limb. A method for making the liner is also claimed which comprises the making of a positive model of the residual limb, reducing the model, forming the liner about the reduced model and laminating a hard socket over a reduced model of the liner.