Abstract:
A flexible shield/diffuser attachment for a portable light, the light comprising a light emitting end emitting light generally along an axis is shown. The attachment comprises an elongated hollow body fabricated from a pliable material and having a shape memory. A first end of said hollow body is secured to the light emitting end coaxial with the axis.
Abstract:
Methods and compositions are described herein for reconstruction of different functional tissues. Dissociated cells, differentiated cells, adult mesenchymal stem cells or embryonic stem cells are seeded on a scaffold. The scaffold will consist of a biocompatible, biodegradable shape memory (“SM”) polymers. In addition bioactive substances may be incorporated in the scaffold. Thermoplastic as well as thermoset materials with SM-effect can be used. The shape memory effect will be applied as an interactive link between the cells and the used polymeric scaffold. The degradation kinetics as well as shape memory transition temperature will be tailored by adjusting to monomer ratios of the co-oligomers. The shape memory effect will be used to create a degradation or release of bioactive substances on demand, induce forces on seeded cells or induce proliferation and differentiation of cells.
Abstract:
A chair having a shape memory sponge mounted on a backrest is invented that comprises a seat, a backrest, and a set of leg portions for supporting the seat and the backrest. The backrest includes a set of cut holes formed vertically to a given depth at both sides with respect to the center portion of the front surface thereof. A backrest cushion is inserted into each of the cut holes so as to protrude a given distance toward a user's back. The backrest cushion is formed of the shape memory sponge, and a fixing plate mounted at the rear side of each of the cut holes.
Abstract:
An article of apparel is disclosed that includes zones with a textile having a structure that changes or is otherwise modified by a physical stimulus, such as the presence of water or a temperature change, to modify a property of the textile. The zones may be along a center back area and side areas of the apparel, and the textile may increase in air permeability when exposed to water. The zones may also be in an upper area of the torso and in a lower back area, and the textile may increase in texture when exposed to water. In some embodiments, slits are formed in the textile.
Abstract:
An adaptable garment material and method of producing such a material. The material may have a substrate and a plurality of shape memory polymer elements integrated therewith, or may be a mat of interwoven shape memory polymer elements. The shape memory elements adapt in the presence of an actuation trigger and exhibit different properties upon actuation.
Abstract:
The invention relates to switching equipment comprising a housing, at least one contact point that has a fixed and mobile contact part and an electromagnetic trip device comprising a trip coil and a trip armature. Said equipment is wherein the trip armature is configured from a material with magnetic shape memory properties. According to the invention, when a short-circuit occurs, the trip armature is deformed by the influence of the magnetic field of the trip coil, thus causing the contact point to open.
Abstract:
A seat assembly includes a seat fabric, wherein at least a portion of the seat fabric comprises a yarn comprising a shape memory polymer adapted to undergo a change in a modulus of elasticity at a thermal transition temperature; a support material upon which the seat fabric is disposed; and a controller in operative communication with the shape memory polymer, wherein the controller is operable to selectively apply a thermal activation signal to the shape memory polymer to effect a change in the modulus of elasticity of the shape memory polymer, wherein the change in the modulus of elasticity of the shape memory polymer results in a change in a stiffness and/or flexibility of the seat fabric.
Abstract:
At least one embodiment of the invention relates to an arrangement for thermocyclisation of a substance. At least one embodiment of the invention also relates to a method for the thermocyclisation of a substance, including: the controllable valves automatically close the PCR chamber after the test fluid has been introduced into the PCR-chamber, and the properties for the memory metal or bimetal elements are used for closing the valves when a predetermined temperature has been exceeded. As a result, the mechanical actuator, which is used to actuate the valves, is thermally coupled to the heating/cooling element in order to carry out the thermocyclisation.
Abstract:
An ablation catheter employing one or more manifold arrangements to convey a conductive fluid medium to a target tissue. The manifold includes at least one inlet port in fluid communication with a fluid supply lumen running along at least a portion of the catheter. The inlet port or ports are in fluid communication with a larger outlet port. The outlet ports provide an outlet for the fluid to flow out of the catheter and against the target tissue. As such, the combination of at least the inlet port with the outlet port provides a flow path for fluid within the fluid lumen to flow through the manifold and to outside of the catheter. An electrode is arranged in the flow path of fluid within or adjacent the manifolds. As such, fluid may be energized and conduct ablation energy to the target tissue to ablate the tissue.
Abstract:
A membrane actuator includes a magnetically actuatable membrane and a magnetic trigger. The membrane includes a shape memory alloy (SMA), and the magnetic trigger is configured to induce a martensitic transformation in the SMA, to produce a larger force than would be achievable with non-SMA-based materials. Such a membrane actuator can be beneficially incorporated into a wide variety of devices, including fluid pumps, shock absorbing systems, and synthetic jet producing devices for use in an aircraft. The membrane/diaphragm can be formed from a ferromagnetic SMA, or a ferromagnetic material can be coupled with an SMA such that the SMA and the ferromagnetic material move together. A hybrid magnetic trigger, including a permanent magnet and an electromagnet, is preferably used for the magnetic trigger, as hybrid magnetic triggers are easy to control, and produce larger magnetic gradients than permanent magnets or electromagnets alone.