与亲水聚合物不同,PTFE不需要湿润即可提供润滑性。相比之下,亲水涂层中的聚乙烯吡咯烷酮(Polyvinylpyrrolidone)(Argon Medical 的 SLIP-COAT 中含有该聚合物)吸收水性液体,使表面在湿润时变得光滑。这一特性使亲水涂层比 PTFE 涂层更具润滑性。下图是一个比较用500g的施加力量来拉动不同涂层的不锈钢导丝所需的力量的...
A urinary catheter having an insertable shaft formed from a blend of an ethylene and/or propylene based polymer and water swellable material. The catheter having a hydrophilic coating disposed on the outer surface of the insertable catheter shaft.Horacio Montes de OcaBrent H. Sellers...
The vascular interventional medical devices such as intravascular catheters used in surgery are made of hydrophobic materials. In order to prevent unnecessary damage caused by friction between the device and the blood vessel during treatment, a hydrophilic coating material is applied to the surface of...
medical instruments such as intravascular catheters used in surgery are made of hydrophobic materials. In order to prevent unnecessary damage caused by friction between instruments and blood vessels during treatment, a layer of hydrophilic coating material is coated on the surface of medical instruments...
We develop coatings to reduce protein and cell adsorption or mineral deposition on surfaces allowing devices to retain their functions longer. For example, when a medical device enters the body, a cascade of biological actions occurs at the surface. Ourmedical device coating productscontrol the surfa...
Our HYDAK® technology offers industry-leading performance in the three medical device coating effectiveness criteria: lubricity, durability, and particulates. Flexibility Biocoat coatings are custom engineered to meet your design parameters to find the best solution that maximizes the effectiveness of ...
17. A method of making a medical device having a hydrophilic coating: applying a hydrophilic coating formulation to a surface of the medical device, the hydrophilic coating formulation comprising a hydrophilic polymer and microparticles comprising a lubricating liquid or microparticle precursors; and formi...
The description above introduces an improved coating system in which a new cross-linking strategy is invented. When used, the coating greatly reduces the friction of medical devices when they are inserted and passed over tissues, which, therefore, prevents mechanical abrasion and discomfort. ...
Compositions, methods, devices and kits utilizing water-based hydrophilic coating formulations on medical implements. The composition for applying a coating comprises a sulfonated polyester, water, and a surface active agent. Methods for coating a medical implement comprise providing an aqueous dispersion ...
IONIC HYDROPHILIC POLYMER COATINGS FOR USE IN MEDICAL DEVICES According to one aspect of the disclosure, medical devices are provided which have a negatively charged surface and a lubricous hydrophilic coating comprising a sulf(on)ated species disposed on the negatively charged surface. In various ....