Patent application number | Description | Published |
20110202125 | ARTIFICIAL STENT AND ITS PREPARATION METHOD - An artificial stent and its preparation method. The artificial stent comprises a stent body and a coating on it. The artificial stent is characterized in that the coating comprises a drug-loaded layer containing silk fibroin and a drug. The drug-loaded layer has a microporous structure substantially consists of silk fibroin and loaded with the drug. The microporous structure is obtained by a method comprising: uniformly coating the surface of the stent body with a solution of silk fibroin, denaturing by heat or chemical reagents; soaking the stent with purified water; then freeze drying and warming-drying, so as to from a microporous structure of the coating; loading the drug into the micropores in the coating; and removing the stent and drying. Silk fibroin used to coat the stent is a natural bio-material with great bio-compatibility; an can be absorbed and metabolized slowly by human body without adverse side effects, overcoming certain adverse effects of conventional drug-coated stents. | 08-18-2011 |
20110238157 | CORONARY ARTERY VASCULAR STENT WITH MEDICINE CARRYING SLOTS - The present invention discloses a coronary artery vascular stent with drug carrying slots ( | 09-29-2011 |
20130041457 | STENT FOR BIFURCATED VESSEL - A stent for a bifurcated vessel includes a stent body with two open ends. The stent body includes multiple sets of annular units having multiple undulating rods and connecting rods positioned between adjacent annular units and used to connect the adjacent annular units. At least one open end of the stent body has a slope structure. | 02-14-2013 |
20130296806 | INTERVENTION MEDICAL DEVICE AND PREPARATION THEREOF - The present invention discloses an interventional medical device and methods of making the same. At least one coating layer is disposed on the outer surface of the interventional medical device and the material of the outmost layer of the coating layer is a sulfonate group-containing polymer. In the present invention, the material of the outmost layer of the interventional medical device is a sulfonate group-containing polymer. The polymer is endowed with a same surface property as that of heparin in addition to appropriate hydrophilicity due to the presence of the sulfonate group. After the interventional medical device is implanted into the human body, a hydrophilic surface is formed on the outer surface of the interventional medical device which is also negatively charged in the body fluid. Therefore, cells can easily adhere and grow on the outer surface thereof as a result of the enhanced cell compatibility. Furthermore, due to a surface property that is the same as that of heparin, the material is provided with excellent anticoagulant properties which inhibit the thrombosis and lower down the incidence rate of post-operational complications. | 11-07-2013 |
20140248327 | INTERVENTIONAL MEDICAL DEVICE AND MANUFACTURING METHOD THEREOF - An interventional medical device and manufacturing method thereof. The interventional medical device comprises: a stent body ( | 09-04-2014 |
20140343666 | STENT FOR BIFURCATED VESSEL - A stent for a bifurcated vessel includes a stent body ( | 11-20-2014 |
20150209485 | INTERVENTIONAL MEDICAL DEVICE AND MANUFACTURING METHOD THEREOF - An interventional medical device and manufacturing method thereof. The interventional medical device comprises: a stent body ( | 07-30-2015 |
20160128848 | METHOD AND DEVICE FOR LOADING MEDICAL APPLIANCE WITH MEDICAMENTS AND/OR POLYMERS - A method and a device for loading a medical appliance with a medicament and/or polymer includes capturing images of a plurality of grooves or holes of the medical appliance using an image capturing device; performing digital image processing on the image of each of the grooves or holes to obtain a pattern of each of the grooves or holes; calculating a central position of the pattern of each of the grooves or holes, and determining a loading position of each of the grooves or holes based on the central position; and adjusting a relative position between a loading device and the medical appliance to align an outlet of the loading device with the loading position of the medical appliance, and loading each of the grooves or holes with the medicament and/or polymer. The method and device can load the medical appliance with the medicament and/or polymer fast and efficiently. | 05-12-2016 |