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14181results about How to "Easy extraction" patented technology

Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders

InactiveUS7691121B2Prevent and minimize severityEasy extractionStentsDilatorsThrombosis embolismThromboembolic disorder
Embolectomy catheters, rapid exchange microcatheters, systems and methods for removing clots or other obstructive matter (e.g., thrombus, thromboemboli, embolic fragments of atherosclerotic plaque, foreign objects, etc.) from blood vessels. This invention is particularly useable for percutaneous removal of thromboemboli or other obstructive matter from small blood vessels of the brain, during an evolving stroke or period of cerebral ischemia. In some embodiments, the embolectomy catheters of this invention are advanceable with or over a guidewire which has been pre-inserted through or around the clot. Also, in some embodiments, the embolectomy catheters include clot removal devices which are deployable from the catheter after the catheter has been advanced at least partially through the clot. The clot removal device may included a deployable wire nest that is designed to prevent a blood clot from passing therethrough. The delivery catheter may include telescoping inner and outer tubes, with the clot removal device being radially constrained by the outer tube. Retraction of the outer tube removes the constraint on the clot removal device and permits it to expand to its deployed configuration. An infusion guidewire is particularly useful in conjunction with the embolectomy catheter, and permits infusion of medicaments or visualization fluids distal to the clot.
Owner:MICROVENTION INC

Assembled building deepening design method based on BII software

The invention provides an assembled building deepening design method based on BII software. The assembled building deepening design method comprises the following steps of 1, conducting preliminary modeling and collision analysis; 2, conducting model deepening design; 3, automatically generating member production drawing through a model; 4, conducting engineering amount statistics and processing data management; 5, designing a mold of a prefabricated member; 6, conducting transportation vehicle-loading simulating and optimizing according to the member weight and the profile size; 7, conductingfield hoisting and simulating of the prefabricated member, and optimizing the hoisting sequence. Aiming at defects of an existing prefabricated member deepening design method, it is adopted that firstly, a three-dimensional model is modeled before deepening design drawing is drawn, a three-dimensional examination method is adopted, after the space conflict relation between the prefabricated member is excluded, the drawing is generated, a large amount of modification of the drawing is avoided, parts in the model all have the accurate three-dimensional size, material information and member subordination relationship, a member material list can be generated simply by conveying the information, and thus an accurate and efficient effect is achieved.
Owner:GUANGDONG JIAN YUAN CONSTR ASSEMBLY IND CO LTD

Radiopharmaceutical administration methods, fluid delivery systems and components thereof

ActiveUS20080177126A1Accurately calculating and delivering effective dosEasy extractionIn-vivo radioactive preparationsDrug and medicationsIonization chamberHandling system
A fluid path set for a fluid delivery system includes a tube coil that is designed to optimally position one or more volumes of a pharmaceutical within an ionization chamber to optimally measure and prepare a pharmaceutical dose for administration to a patient. The tube coil may be maintained in a desired dimensional geometry by means of a core structure around which the tube coil is positioned. Novel developments in radiopharmaceutical administration methods and systems include, but are not limited to, the configuration and layout of a fluid path set for use in a fluid delivery system, arrangements for piercing and drawing fluid from a pharmaceutical container (such as a vial), arrangements for optimizing the positioning of a tube coil within an ionization chamber, a handling system for transporting vial shields that maintain an operator's hand and fingers at a safe distance from a pharmaceutical vial, a method for calibrating a radiopharmaceutical delivery system in which the difference between the expected and measured activities of two radioisotopes are used to calculate an estimated error in the measured activity of a third radioisotope and a vial access system that ensures an optimal draw of fluid from a radiopharmaceutical container.
Owner:BAYER HEALTHCARE LLC
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