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129results about How to "Eliminate displacement" patented technology

Embolic protection devices

InactiveUS7217255B2Complex shapePrevent accidental leakageSurgeryDilatorsEmbolic Protection DevicesAxial force
An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.
Owner:ABBOTT CARDIOVASCULAR

Preparation method and device of eccentric wear prevention pumping rod

InactiveCN101396874AExcellent performance of anti-eccentric wearPrevent slippageDrilling rodsDomestic articlesPre stressResin matrix
The invention relates to a method for preparing a composite material sucker rod which can prevent camber wear and a device thereof. Combining pultrusion and winding, fibre is immersed by resin matrix, and the composite material sucker rod is prepared by pultrusion, curing and shaping; the surface of the rod body is continuously wound with wearing fibre immersed by resin matrix glue after shaping; the rod body of the sucker rod, the surface of which is provided with a camber wear preventing layer of a spiral bar shape is obtained by curing; the rod body of the sucker rod is cut to be in fixed length, is connected with a metal joint by glue, and is treated in a joint curing furnace; the whole sucker rod is stretched by inherent stress. The surface of the rod body of the sucker rod is provided with the camber wear preventing layer of a spiral bar shape, thus having excellent camber wear preventing performance while ensuring a high intensity of the sucker body; the inverse cone structure of the metal joint and the pressure injection glue connection process ensure the joint part has the properties of high intensity and fatigue proof, the service life of which is consistent with the composite material rod body, and the reliability of the products is greatly improved.
Owner:BEIJING UNIV OF CHEM TECH

Embolic protection devices

An embolic protection device for use in a blood vessel when an interventional procedure is being performed in a stenosed or occluded region to capture any embolic material which may be created and released into the bloodstream during the procedure. The device includes a filtering assembly having a self-expanding strut assembly and a filter element attached thereto. In one embodiment, the filtering assembly is attached to the distal end of a guide wire and is deployed within the patient's vasculature as the guide wire is manipulated into the area of treatment. A restraining sheath placed over the filtering assembly in a coaxial arrangement maintains the filtering assembly in its collapsed position until it is ready to be deployed by the physician. Thereafter, the sheath can be retracted to expose the filtering assembly which will then self-expand within the patient's vasculature. Interventional devices can be delivered over the guide wire and any embolic debris created during the interventional procedure and released into the blood stream will enter the filtering assembly and be captured therein. Other embodiments include filtering assemblies attached to an outer tubular member and inner shaft member which apply axial force to the distal ends of the assembly to either expand or contract the struts as needed.
Owner:ABBOTT CARDIOVASCULAR

Apparatus and method for securing a roof assembly during a severe wind storm

A strapping system includes a roof assembly including a plurality of receiving channels; each of the plurality of receiving channels is fastened to interconnected roof materials connected to a roof structure. The roof assembly also includes a plurality of roof channels that are connected by the plurality of receiving channels and fastened to the interconnected roof materials, such that a row of interconnected roof channels and receiving channels is placed over the interconnected roof materials along a length of a roof structure. The strapping assembly also includes a plurality of straps for tying down the roof assembly to a corresponding plurality of anchors, each of the plurality of anchors being secured at predetermined distances at opposite sides of a foundation of a building. The strapping assembly further includes a plurality of tensioning devices mounted, at predetermined distances, on the roof materials between rows of interconnected roof channels and receiving channels, the plurality of tensioning devices being for eliminating vertical displacement of the fastened straps. Each of the plurality of straps is placed at a predetermined distance along the length of the roof structure over rows of interconnected roof channels and receiving channels and is threaded in a corresponding tensioning device that is lined up with a corresponding anchor at the foundation of the building. On opposite sides of the building, each of the plurality of straps is fastened to a corresponding ratchet assembly attached to a corresponding anchor of the plurality of anchors, thereby transferring load from the roof assembly to the foundation of the structure during a high wind storm such as a, hurricane, typhoon, cyclone or a tornado.
Owner:HURRICANE HARNESS CORP

Concrete foundation embedded bolt bracket and embedding method for concrete foundation embedded bolts

The invention discloses a concrete foundation embedded bolt bracket and an embedding method for concrete foundation embedded bolts. The embedded bolt bracket of a concrete foundation comprises at least four groups of support assemblies, at least two groups of clamping piece steel plates, steel templates, wherein every two groups of support assemblies correspond to a group of clamping piece steel plates; the support assemblies are arranged at the side parts of the steel templates; two ends of the clamping piece steel plates are movably connected with the support assemblies; the clamping piece steel plates comprise upper clamping piece steel plates and lower clamping piece steel plates; the steel templates are respectively clamped between every two clamping piece steel plates; and a plurality of bolt holes for allowing the embedded bolts to pass through are formed in the steel templates. According to the concrete foundation embedded bolt bracket and the embedding method for the concrete foundation embedded bolts, which are disclosed by the invention, the embedded bolts can be adjusted from six directions, the displacement and settlement of the embedded bolts caused by concrete construction are eliminated and high-precision embedding is realized, so that the embedding of the bolts is finished at one time and further the work efficiency is increased.
Owner:CHINA CONSTR FIFTH ENG DIV CORP LTD
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