864 results about "Compound structure" patented technology

Cell lines having genetically modified glycosylation pathways that allow them to carry out a sequence of enzymatic reactions, which mimic the processing of glycoproteins in humans, have been developed. Recombinant proteins expressed in these engineered hosts yield glycoproteins more similar, if not substantially identical, to their human counterparts. Thelower eukaryotes, which ordinarily produce high-mannose containing N-glycans, including unicellular and multicellular fungi are modified to produce N-glycans such as Man5GlcNAc2 or other structures along human glycosylation pathways. This is achieved using a combination of engineering and / or selection of strains which: do not express certain enzymes which create the undesirable complex structures characteristic of the fungal glycoproteins, which express exogenous enzymes selected either to have optimal activity under the conditions present in the fungi where activity is desired, or which are targeted to an organelle where optimal activity is achieved, and combinations thereof wherein the genetically engineered eukaryote expresses multiple exogenous enzymes required to produce “human-like” glycoproteins.

Embodiments include selectively expandable composite structures useful as spinal arthroplasty devices such as intervertebral disc prostheses. The structures may comprise an outer shell comprised of a non-hydrogel polymer material. The structures also may comprise at least one core positioned within the outer shell. The core may be comprised of a hydrophilic polymer. The core may expand upon hydration, thereby deforming the outer shell. The selectively expandable composite structures may be implanted in a dehydrated form and then expand during re-hydration following implantation.

A modular bandage for treating wounds located on highly contoured, non-planar regions of a person includes a standoff for placement near the wound, and a sheet of material for forming a sealed environment over the wound in conjunction with the standoff. The modular bandage may further include a heater to thermally regulate the sealed environment formed by the standoff and the sheet of material. A sheet of material for such a bandage may include various uniform or compound structures.

The present invention provides a modular panel lighting apparatus comprising a multi layer power board and one or more lighting modules. The power board is a compound structure of one or more electrically conductive layers which are separated by one or more electrically insulating layers. The power board is configured to receive one or more lighting modules and can provide electrical, mechanical and thermal function adequate to meet a desired functionality of the lighting apparatus. A lighting module comprises one or more light-emitting elements operatively attached to a connector element that has one or more electrical contact portions. By inserting the connector element into the power board, the lighting module can be mounted anywhere on the face of the power board. When appropriately inserted into the power board, the one or more electrical contact portions of the connector element can establish selective electrical contact with the conductive layers of the power board and can secure the lighting module in place.

The invention discloses a high-precision bio-compound 3D printing device and a printing method. The high-precision bio-compound 3D printing device comprises a cell printing spraying head and an electrostatic direct writing device which are arranged above a collection platform and are connected with a motion control module, wherein the cell printing spraying head is connected with an ultra-precision injection pump; the electrostatic direct writing device is connected with a reflux heating device; a main unit and a high-voltage direct current power supply are arranged outside an ultra-clean experiment table; the electrostatic direct writing device, the cell printing spraying head and the high-voltage direct current power supply are connected with the main unit. The printing method comprises the following steps: the main unit automatically switches the cell printing spraying head and the electrostatic direct writing device to print a cell-containing gel / biological scaffold / micro-channel compound structure; after the printing of one layer is completed, the cell printing spraying head and the electrostatic direct writing device move a distance equal to the thickness of one layer in the Z-axis direction for printing of the next layer, and repeating till all tissue organs to be printed are completed in printing. The high-precision bio-compound 3D printing device can stably and precisely print compounds of various cells and submicron or nano-level biological scaffolds.

To fabricate a composite item, a device places a composite ply on a curved form at about 0° relative to a longitudinal axis of the form. The form includes a web surface and a cap surface. The device includes a web compaction roller and a set of guides. The web compaction roller compacts a composite material upon the web surface and generate a web ply. The set of guide rollers urges against the cap surface. The compaction roller is directed along the form by the guide rollers.

A modular bandage for treating wounds located on highly contoured, non-planar regions of a person includes a standoff for placement near the wound, and a sheet of material for forming a sealed environment over the wound in conjunction with the standoff. The modular bandage may further include a heater to thermally regulate the sealed environment formed by the standoff and the sheet of material. A sheet of material for such a bandage may include various uniform or compound structures.

A catheter deliverable stent / graft especially designed to be used in a minimally invasive surgical procedure for treating a variety of vascular conditions such as aneurysms, stenotic lesions and saphenous vein grafts, comprises an innermost tubular structure and at least one further tubular member in coaxial arrangement. In one embodiment, the innermost tubular structure is of a length (L 1 ) and is formed by braiding a relatively few strands of highly elastic metallic alloy. The pick and pitch of the braid are such as to provide relative large fenestrations in the tubular wall that permit blood flow through the wall and provide the primary radial support structure. A portion of the innermost tubular structure of a length (L 1 ) is surrounded by a further braided tubular structure having relatively many strands that substantially inhibit blood flow through the fenestrations of the innermost tubular structure.

A composite structural material suitable, for example, as a replacement for wooden boards, sheets, or posts, is disclosed. It comprises a dimensionally stable core material substantially surrounded by a dimensionally stable, laminar covering that is adherent to the core material. The laminar covering is comprised of at least one band of substantially parallel reinforcing cords bonded to at least one layer of a dimensionally stable web material selected from the group consisting of rigidified paper and rigidified cloth. Preferably the band of reinforcing cords is sandwiched between two layers of rigidified paper or cloth. The core material can be, for example, a foamed synthetic resin with or without filler. A continuous process for manufacturing the material is disclosed.

A circuit breaker includes a molded housing, separable contacts, an operating mechanism adapted to open and close the separable contacts, and a trip circuit cooperating with the operating mechanism to trip open the separable contacts. The molded housing includes two molded halves. The trip circuit includes a pair of arc fault printed circuit boards which cooperate with the corresponding molded halves to form an external composite structure. That external composite structure includes the printed circuit boards and an over-molding material, such as, for example, a thermally conductive epoxy coating disposed thereon.