Abstract: A lower limb prosthesis comprises a knee chassis (10), a shin carrier (20) pivotally connected to the knee chassis (10) and a piston and cylinder assembly (30, 40) pivotally connected to the knee chassis (10) and the shin carrier (20). The piston and cylinder assembly (30, 40) comprises a piston assembly (40) comprising a piston (40) mounted on a piston rod (42), a cylinder body (32B) having a cavity (46) defining a cylinder within which the piston (44) is arranged to reciprocate along the piston and cylinder assembly axis, and a foot component attachment means (36) for attaching a foot component to the piston and cylinder assembly (30, 40).

Abstract: An exoskeleton system comprising: a power system that powers the exoskeleton system, the power system including one or more battery slots, and a modular battery set that includes one or more battery units that are modular such that any of the one or more battery units can be readily and quickly removed and coupled within any of the one or more battery slots to provide power to the exoskeleton system.

Abstract: A lower limb prosthesis comprises a knee chassis (10), a shin carrier (20) pivotally connected to the knee chassis (10) and a piston and cylinder assembly (30, 40) pivotally connected to the knee chassis (10) and the shin carrier (20). The piston and cylinder assembly (30, 40) comprises a piston assembly (40) comprising a piston (40) mounted on a piston rod (42), a cylinder body (32B) having a cavity (46) defining a cylinder within which the piston (44) is arranged to reciprocate along the piston and cylinder assembly axis, and a foot component attachment means (36) for attaching a foot component to the piston and cylinder assembly (30, 40).

Abstract: An actuated glove orthosis comprises a plurality of digits, each digit configured to be coupled to a finger, each digit defining at least one mechanical stop for preventing hyperextension. The orthosis may further comprise at least one actuator, and a plurality of cables, each cable coupled between a digit and the actuator. Activation of the actuator may increase tension on the plurality of cables to extend the plurality of digits. The device is entirely portable and leaves the hand free to grasp real objects, including as part of a standard therapy session.

Abstract: An actuated glove orthosis is disclosed. The orthosis may comprise a plurality of digits, each digit configured to be coupled to a finger, each digit comprising at least one mechanical stop for preventing hyperextension. The orthosis may further comprise at least one actuator, and a plurality of cables, each cable coupled between a digit and the actuator. Activation of the actuator may increase tension on the plurality of cables to extend the plurality of digits. The device is entirely portable and leaves the hand free to grasp real objects, including as part of a standard therapy session. Other embodiments of the orthosis, along with systems and methods for its design and use, are also disclosed.

Abstract: In a stabilising knee joint for a lower limb prosthesis, weight-activated knee stabilisation is achieved by interen-gagement of a brake disc (32) associated with an upper knee chassis (10) and a brake member (34) associated with a shin carrier (18). The knee chassis is mounted on a posterior end portion (14P) of a resiliency biased activation arm (14) which pivots on the carrier (18). To provide a mechanical advantage in the brake action, a circumferential portion of the brake disc (32) is tapered, and the brake member (34) has a correspondingly tapered channel which receives the circumferential disc portion. The arrangement of the brake members (32, 34) and their mounting on the shin carrier (18) is such that substantial release of frictional engagement of the brake members can be substantially achieved even when a knee flexion moment is applied to the joint.

Abstract: A system and method for preventing miswiring of a GFCI device wherein load terminals of the GFCI device are provided with a shielding device that requires removal before the load terminals can be connected to a load. By requiring an affirmative act prior to connection of the load terminals of the GFCI to a load, miswiring of the GFCI is prevented.

Abstract: The method comprises the polymerization of nonionic monomers, such as acrylamide, or a mixture of nonionic monomers (acrylamide) and anionic monomers ((meth)acrylic acid or the salts thereof) into a reverse microemulsion in the presence of an auto-reversible surfactant system in contact with an aqueous solution or suspension, which can thermodynamically stabilize the system, at a nonionic monomer to anionic monomer mass ratio comprised between 100:0 and 40:60.

Abstract: The method comprises the polymerization of a nonionic monomer and a cationic monomer into a inverse microemulsion in the presence of an self-inverting surfactant system in contact with an aqueous solution or suspension, which can thermodynamically stabilize the system, at a nonionic monomer to anionic monomer ratio comprised between 99:1 and 20:80 by weight.

Abstract: Procedure for obtaining acetic acid derivatives (I) where R.sub.1 and R.sub.2 are H or groups --CH.sub.2 --COOH by oxidation of (II) where R and R' are H or groups of --CH.sub.2 --CH.sub.2 OH with O.sub.2 or a gas that contains it, in the presence of an metal hydroxide, demineralized water and Cu-Raney. The reaction is carried out keeping constant a partial pressure of oxygen below 20 Kg/cm.sup.2, inside the reactor. The acids (I) obtained as soluble salts, can be isolated and purified by chemical or electrochemical means.Examples of acids (I) are glycine, iminediacetic acid and nitricetriacetic acid, useful as nutrients and in the synthesis of herbicides.