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1. CN111514380 - Ureteral stent and preparation method thereof

Office
Chine
Numéro de la demande 201910107526.2
Date de la demande 02.02.2019
Numéro de publication 111514380
Date de publication 11.08.2020
Numéro de délivrance 111514380
Date de délivrance 08.06.2021
Type de publication B
CIB
A61L 31/10
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
LPROCÉDÉS OU APPAREILS POUR STÉRILISER DES MATÉRIAUX OU DES OBJETS EN GÉNÉRAL; DÉSINFECTION, STÉRILISATION OU DÉSODORISATION DE L'AIR; ASPECTS CHIMIQUES DES BANDAGES, DES PANSEMENTS, DES GARNITURES ABSORBANTES OU DES ARTICLES CHIRURGICAUX; MATÉRIAUX POUR BANDAGES, PANSEMENTS, GARNITURES ABSORBANTES OU ARTICLES CHIRURGICAUX
31Matériaux pour autres articles chirurgicaux
08Matériaux de revêtement
10Matériaux macromoléculaires
A61L 31/14
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
LPROCÉDÉS OU APPAREILS POUR STÉRILISER DES MATÉRIAUX OU DES OBJETS EN GÉNÉRAL; DÉSINFECTION, STÉRILISATION OU DÉSODORISATION DE L'AIR; ASPECTS CHIMIQUES DES BANDAGES, DES PANSEMENTS, DES GARNITURES ABSORBANTES OU DES ARTICLES CHIRURGICAUX; MATÉRIAUX POUR BANDAGES, PANSEMENTS, GARNITURES ABSORBANTES OU ARTICLES CHIRURGICAUX
31Matériaux pour autres articles chirurgicaux
14Matériaux caractérisés par leur fonction ou leurs propriétés physiques
CPC
A61L 31/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31Materials for other surgical articles ; , e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
08Materials for coatings
10Macromolecular materials
A61L 31/14
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
31Materials for other surgical articles ; , e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
14Materials characterised by their function or physical properties ; , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
A61L 2400/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2400Materials characterised by their function or physical properties
10Materials for lubricating medical devices
A61L 2420/08
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2420Materials or methods for coatings medical devices
08Coatings comprising two or more layers
A61L 29/08
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
29Materials for catheters, ; medical tubing, cannulae, or endoscopes; or for coating catheters
08Materials for coatings
Déposants JIANGSU BIOSURF BIOTECH CO., LTD.
江苏百赛飞生物科技有限公司
Inventeurs LI YE
李业
Mandataires 北京林达刘知识产权代理事务所(普通合伙) 11277
北京林达刘知识产权代理事务所(普通合伙) 11277
Titre
(EN) Ureteral stent and preparation method thereof
(ZH) 一种输尿管支架及其制备方法
Abrégé
(EN)
The invention relates to a ureteral stent and a preparation method thereof. The ureteral stent has at least one pre-coating layer formed on the surface of the ureteral stent and at least one hydrophilic lubricant coating layer formed on the pre-coating layer. Preferably, the pre-coating layers and the hydrophilic lubricant coating layers are formed by means of photocuring, thermal curing, chemicalreaction, physisorption, crystallization or freezing. By means of the technical scheme, a stable and firm coating layer can be formed on the surface of the ureteral stent relatively complex in shape,friction force of the ureteral stent is reduced to a great extent (friction force of 30th-time circulation is small and a ratio of the friction force of 30th-time circulation to initial friction force is kept within 2 times), and the lubricating performance is greatly improved.

(ZH)
本发明涉及一种输尿管支架及其制备方法。所述输尿管支架具有形成于其表面上的至少一层预涂层和形成于所述预涂层上的至少一层亲水润滑涂层。优选地,所述预涂层和所述亲水润滑涂层通过光固化、热固化、化学反应、物理吸附、结晶或冷冻的方式形成。通过本发明的技术方案,可以在形状较复杂的输尿管支架表面形成一层稳定牢固的涂层,极大程度地降低输尿管支架的摩擦力(第30次循环摩擦力小,并且第30次循环摩擦力/初始摩擦力保持在2倍以内),极大地提高了润滑性能。

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