基于细菌纤维素复合包覆的输尿管支架管及其制备方法

• Format: Patent
• Language: Chinese
• Published: 14.03.2025
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL

本发明涉及一种基于细菌纤维素复合包覆的输尿管支架管及其制备方法，首先制备中空管状细菌纤维素膜Ⅲ，然后将可降解纤维编织在中空管状细菌纤维素膜Ⅲ的外壁上形成可降解纤维编织管，最后将中空管状细菌纤维素膜Ⅲ从沿长度方向的一端向另一端翻折形成管状细菌纤维素膜Ⅰ和管状细菌纤维素膜Ⅱ，使可降解纤维编织管位于两层管状细菌纤维素膜之间，即制得基于细菌纤维素复合包覆的输尿管支架管；制得的输尿管支架管为三层中空管状结构，中间层为可降解纤维编织管，外层和内层分别为管状细菌纤维素膜Ⅰ和管状细菌纤维素膜Ⅱ。本发明从结构上避免了降解碎片脱落所引起的安全问题，且制得的输尿管支架管综合性能较好。 The preparation method comprises the following steps: firstly, preparing a hollow tubular bacterial cellulose membrane III, and then weaving degradable fibers on the outer wall of the hollow tubular bacterial cellulose membrane III to form a degradable fiber woven tube; and finally, folding the hollow tubular bacterial cellulose membrane III from one end to the other end in the length direction to form a tubular bacterial cellulose membrane I and a tubular bacterial cellulose membrane II, so that the degradable fiber braided tube is positioned between the two layers of tubular bacterial cellulose membranes, and the ureter stent tube based on bacterial cellulose composite coating is prepared. The prepared ureter stent tube is of a