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1574results about How to "Avoid small" patented technology

Medicinal balloon catheter and preparation method thereof

The invention discloses a medicinal balloon catheter and a preparation method thereof. The balloon outside surface of the medicinal balloon catheter is grinded and processed through ultraviolet laser to form the concave-convex non-planar structure on the balloon outside surface. The gaps within the non-planar structure form a drug storage layer. The wavelength of the ultraviolet laser is within the range of 10-400nm. The wall thickness of the medicinal balloon catheter is 15-25 microns. The thickness of the non-planar structure is 8-12 microns. Owning to the concave-convex non-planar structure of the balloon outside surface of the medicinal balloon catheter in the invention, the medicinal adsorption storage capacity is fundamentally improved, namely firstly, the amount of the adsorbed medicine is greatly increased, secondly when medicine adsorbed on balloon passes through blood vessels to reach the site of lesion, the medicine adsorbed on the outer wall of the balloon can be maintained as much as possible and cannot be washed off by blood in the blood vessels and cause loss, and can be effectively transferred to the site of lesion by the balloon so as to have effectively therapeutic action. The medicinal balloon catheter of the invention can be used in not only coronary heart disease, but also various diseases caused by other narrow vessels such as lower extremity arterial stenos is or occlusion caused by diabetes.
Owner:成都维德医疗器械有限责任公司

Method for strengthening activity of anaerobic ammoxidized microorganisms through polyvinyl alcohol-sodium alginate-activated carbon embedment

The invention belongs to the field of water treatment, and relates to a method for strengthening the activity of anaerobic ammoxidized microorganisms through polyvinyl alcohol-sodium alginate-activated carbon embedment. The method comprises the following steps of: soaking activated carbon in anaerobic ammoxidized basic inorganic salt solution, and preparing an embedding medium by using polyvinyl alcohol, sodium alginate and the activated carbon into in a proportion; and uniformly mixing treated anaerobic ammoxidized sludge and the embedding medium in a volume ratio to obtain immobilized balls, and culturing to obtain the anaerobic ammoxidized microorganisms steadily coupled on the activated carbon. The invention aims at wastewater with low carbon-nitrogen ratio, and can provide a method for embedding the anaerobic ammoxidized sludge by using the sodium alginate and the polyvinyl alcohol as carriers and the activated carbon as a strengthening agent, and a technology for strengthening the activity of the anaerobic ammoxidized microorganisms and enabling the anaerobic ammoxidized microorganisms to resist the influence of adverse environment. By the method, sewage plants can run more steadily for a long time, and the conditions of actual operation management of the sewage plants are met.
Owner:SUN YAT SEN UNIV

Intelligent express distribution method on mobile platform

The present invention relates to an intelligent express distribution method on a mobile platform. According to the intelligent express distribution method, a database, which comprises a starting point, each distribution address and a final destination, of a mobile terminal is established, an SDK of a map application is combined, a greedy algorithm with a roulette and a global k-opt method are used for planning an optimal distribution path before departure, modification is carried out according to changes and details of an optimal route are displayed in a character and map form. The intelligent express distribution method overcomes the defects that express distribution efficiency is seriously low, labor is wasted and express distribution delay is caused. The intelligent express distribution method adopts the global k-opt method, so that the express distribution route before distribution can be optimized; and due to adoption of the k-opt method, the subsequent path can be optimized by constructing a planning address set on the basis of not influencing the passed route, not only the distribution efficiency of the express company can be basically guaranteed, but also couriers also can be liberated from the load of planning the distribution path and real wisdom logistics is realized.
Owner:YANGZHOU UNIV

Inorganic foaming thermal-insulation mortar and preparation method thereof

The present invention provides an inorganic foaming thermal-insulation mortar and a preparation method thereof, and belongs to the technical field of building material preparation. The thermal-insulation mortar comprises a cementing material, expanded perlite particles, a macromolecule polymer, a coagulant, an early strength agent, a physical foaming agent, a chemical foaming agent hydrogen peroxide, a chemical foaming agent foaming catalyst, a hydrophobic agent, reinforced short fibers and water. According to the present invention, the inorganic foaming thermal-insulation mortar can be directly coated on the wall and the roof requiring the thermal-insulation treatment, the thickness of the inorganic thermal-insulation mortar layer can be adjusted within 10-100 mm, screeding finishing construction is performed before the cementing material is subjected to final setting, and hardening is performed to obtain the inorganic thermal-insulation mortar layer with characteristics of good durability, good water resistance and good heat insulation, wherein the inorganic thermal-insulation mortar layer never sheds, and has the same service life as the building being subjected to thermal-insulation by the inorganic thermal-insulation mortar layer; and the raw material cost is low, and significant economic benefits and environmental benefits are provided.
Owner:安徽融博科技有限公司
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