107results about How to "Different property" patented technology

The invention relates to an optical device (50) for manipulating a light wave (λ) using a diffractive grating structure (G). According to the basic idea behind the invention a prior art type diffractive grating structure having a permanently shaped surface relief is substituted with an electrically deformable diffractive grating structure (G), where a preformed, basic surface relief of the grating is composed of dielectric and deformable viscoelastic material, which can be electrically and sequentially fine tuned in shape to adjust the diffraction properties of said grating individually for different wavelengths. The invention permits manufacture of virtual display devices with a significantly larger exit pupil diameter than prior art solutions without degrading the color uniformity of the display device.

Catheters having selectively insertable or selectively activatable and releasable stiffening mechanisms are provided. In general, the catheter is inserted, navigated and withdrawn from a subject in a relaxed, flexible condition and stiffening mechanisms are deployed to prevent the catheter from shifting during placement or operation of an accessory device or tool through the catheter. Stiffening members(s) may be inserted into and removed from one or more longitudinal channel(s) provided in proximity to the catheter wall and generally coaxial with the primary catheter lumen to change the stiffness properties of the catheter. The properties, configuration and size of the stiffening members and channels may be varied to vary the stiffness properties of the catheter and stiffening members may be constructed from materials having shape change properties or materials that change conformation or stiffness with application of heat, current or electrical field. Stiffening mechanisms may also employ energy absorbing and viscoelastic polymer materials having variable stiffness properties depending on ambient conditions.

The invention consists of an endoluminal prosthesis adapted for placement at a bifurcation site within the body. The stent or stent-graft may be constructed to have segments of differing structural properties. A section of the stent-graft may be constructed to have a single-lumen tubular stent member covering a multilumen graft member. The stent-graft may comprise at least two modular components adapted for in situ assembly. An extended cylindrical interference fit may be used to seal the modular components.

A humerus implant has a stem, cup shaped body and a locking adapter. The cup shaped body is locked to the stem by a key-slot mechanism. The cup shaped body has a center portion and a plurality of flexible first sidewall segments and second sidewall segments, with gaps between neighbored sidewall segments. The first sidewall segments have a plurality of locking fins while the second sidewall segments having a plurality of recesses and holes. The locking adapter has means for fixing the locking adapter to the cup shaped body and a locking ring for locking the sidewall segments into their final positions.

The present invention discloses a pre-manufactured or pre-formed pocket. The present pocket is secured using cross lace pieces and either runners or throat tie downs to be attached to the frame. Generally, the runners are made of a top runner piece and a bottom runner piece that are stitched together. In between the top runner piece and the bottom runner piece there are placed any number of cross pieces and cross lace pieces. The cross pieces maintain the maximum distance between the runners. The cross lace pieces are used to tie to secure the pocket to the frame. Either throat ties or the runners are then used to secure the bottom portion of the pockets to the throat of the frame. The top runner piece and the bottom runner piece can be secured together in any way including stitching or adhesive. Another embodiment creates a pocket from one or more sheets of material. A die or knife is used to cut the material into the desired shape. In that way a piece of material can be cut into a mesh pocket. The dimensions of the pocket, including the depth of the pocket can be adjusted by making the cuts bigger in the desired areas. Additionally, the die can have textures on the face to impart textures to the pocket thereby varying the surface roughness at different parts of the pocket.

The invention relates to a novel medical apparatus for treatment of obesity, diabetes, and/or other obesity-associated health problems. The apparatus is used to impede absorption of nutrients within the gastrointestinal tract, i.e., substantially isolating nutrients from a portion of the gastrointestinal tract. The apparatus can be implanted using minimally invasive techniques, such a transesophageal approach under visualization. More specifically, the apparatus is used to impede absorption of nutrients within the gastrointestinal tract, i.e., substantially isolating nutrients from a portion of the gastrointestinal tract. The apparatus may include a sleeve and at least one anchoring component attached to the sleeve with a releasable component. The sleeve may have different properties along its length or there may be multiple sleeves having different properties.

A protective body armor system for protection against ballistic threats has an armored element such as a vest with front and rear ballistic armor. A long-sleeved shirt is worn beneath the ballistic armor which has a wicking, lightweight, low thermal insulation torso element. Two long sleeves are connected to and extend from the torso element. The torso element is substantially overlain by portions of the armor element, while portions of the sleeve extend beyond the armored element. The shirt has a durable collar connected to the torso element and to the two sleeves. The collar extends upwardly from the armored element. The collar is less resilient than the torso element, and serves to connect the two sleeves and to restrain the garment from undesired distortion.

A humerus implant includes a cup shaped body and a locking adapter. The cup shaped body has a center portion and a plurality of flexible first sidewall segments and second sidewall segments, with gaps between neighbored sidewall segments. The first sidewall segments have a plurality of locking fins while the second sidewall segments having a plurality of recesses and holes. The locking adapter has means for fixing the locking adapter to the cup shaped body and a locking ring for locking the sidewall segments into their final positions.

A shallow trench isolation structure containing a first shallow trench isolation portion comprising the first shallow trench material and a second shallow trench isolation portion comprising the second shallow trench material is provided. A first biaxial stress on at least one first active area and a second bidirectional stress on at least one second active area are manipulated separately to enhance charge carrier mobility in middle portions of the at least one first and second active areas by selection of the first and second shallow trench materials as well as adjusting the type of the shallow trench isolation material that each portion of the at least one first active area and the at least one second active area laterally abut.

The present invention concerns the use of a polypeptide having DNase activity for preventing, reducing or removing a biofilm from an item, wherein the item is a hard surface, a composition comprising such polypeptide and a method for cleaning.

Medical devices may be made of shape-memory materials portions of which have been heat treated to exhibit spatial variations in the stiffness of the material. Devices including stents, vena cava filters and guidewires may be constructed from such materials. Devices may also be made from shape-memory materials which have been locally heat treated such that the superelasticity of the treated portion is destroyed while the remainder of the shape-memory material can transition between the martensitic and austenitic states.

A method and apparatus produce silicon-carbon composite materials through a chemical vapor deposition or a thermal disposition process in a fluidized bed reactor on a semi-continuous basis. The produced silicon-carbon composite has a unique structure that silicon particles are uniformly dispersed, bonded and embedded into the carbon conductive matrix and forming a secondary structure. The produced silicon-carbon composite can be used as advanced anode materials for lithium battery and other electrochemical energy storage device.

A fiber is produced comprising polymers of differing types which are not admixed during production. The differing polymer types are heated to the point of softening in a vertically-oriented crucible and a fiber comprising the polymers in positions corresponding to their positions in the crucible is drawn from an orifice at the lower end of the crucible.

The present invention relates to a rotationally asymmetric chaotic optical multi-pass cavity useful in optical gas sensing spectroscopy, optical delay lines, and laser amplification systems, for example. The cavity may include a single closed mirror having a light reflective surface that is deformed in two orthogonal directions and more particularly, but not exclusively, in the shape of a quadrupole in both horizontal and vertical planes. The cavity includes a light entry port and a light exit port which may be the same or separate ports, as well as a gas inlet and a gas outlet. The optical path length, the beam divergence rate, and the spot pattern are controlled by selecting the cavity deformation coefficients and the input beam direction to achieve the desired beam path and beam quality.

The invention relates to materials intended for use in an oxidative medium at high temperatures, including the manufacture of high-temperature electric heaters, parts, sensors and tools operating at temperatures of up to 1900° C. and higher. On the basis of tungsten and molybdenum suicides MeSi2-Me5Si3 and silicon carbides materials are prepared, noted for a high level of temperature resistance, resistance to thermal shocks, refractoriness and wear resistance. Alloying with silicides of rhenium, tantalum, titanium, zirconium, niobium, and hafnium makes it possible to enhance the mechanical properties of materials. Materials with controllable porosity make it possible, compared with high-density materials, at a smaller density of the materials, to increase the resistivity and to reduce the thermal conductivity thereof.

The present invention concerns a detergent and a pharmaceutical composition comprising a deoxyribonuclease (DNase), wherein the DNase is obtained from a fungal source. It further concerns a laundering method and the use of DNase. The present invention further relates to polypeptides having DNase activity, as well as methods of producing the polypeptides.

The tool has a clamping part (2) and a working part (11). It consists of a wear-resistant material, which contains tungsten carbide which has a grain size that lies in the range between approximately 0.2 and approximately 0.5 μm. The clamping part (2) consists of a tough material, which likewise contains tungsten carbide which has a grain size in the range between approximately 0.8 and approximately 1.3 μm. In a transitional region (11) between the working part (11) and the clamping part (2), the proportion of wear-resistant tungsten carbide decreases in the direction of the clamping part (2) to 0 and the proportion of tough tungsten carbide decreases in the direction of the working part (11) to 0. The mixing ratio between wear-resistant and tough tungsten carbide changes approximately steadily in the transitional region (10).