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 |
20110319983 | BRANCHED STENT GRAFT - A branched stent graft comprises a main body portion and a branch portion. Each of the main body portion and the branch portion includes a stent and a tubular graft. The stent of the main body portion includes a plurality of stent segments, at least one of which is a varying-height stent segment ( | 12-29-2011 |
20120101563 | DELIVERY SYSTEM FOR BRANCHED STENT GRAFT - A delivery system for a branched stent graft comprises a double-layer sheath ( | 04-26-2012 |
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 |
20130066413 | SURGICAL APPARATUS FOR ANEURYSMS - The present application discloses a surgical apparatus for aneurysms comprising: a stent, a delivery guide wire, an introducer sheath and a microcatheter, wherein: the stent is a self-expanding stent; the delivery guide wire outside of which the stent is restrained to is provided in a lumen of the introducer sheath; the introducer sheather is connected with the microcatheter, with lumnes communicating, to form a passageway through which the delivery guide wire and the stent are delivered into a human body. The surgical apparatus for aneurysms provided in the examples of the present application is able to deliver and release the stent which has high density and is super soft to a vascular lesion. A lattice structure of the stent is of high coverage at the vascular lesion such that the stent released into the vessel prodeces the same effects as healing of parent vessel, and thus improves the treatment of vascular aneurysms. | 03-14-2013 |
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 |