CATHETER ASSEMBLY SLEEVE HAVING A PLURALITY OF OPENINGS

The disclosure provides a catheter assembly with an expandable and collapsible structure (e.g., balloon) having a coating with bioactive agent disposed on its outer surface. A sleeve having openings and that is able to expand between a compressed state and an enlarged state and to return to the comp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	CHAPPA, RALPH A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS 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 DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	The disclosure provides a catheter assembly with an expandable and collapsible structure (e.g., balloon) having a coating with bioactive agent disposed on its outer surface. A sleeve having openings and that is able to expand between a compressed state and an enlarged state and to return to the compressed state, is disposed over the coating. When the expandable and collapsible structure is in a contracted state, such as when the catheter assembly is being guided to the target side, the outer diameter of the coating is less than an outer diameter of the sleeve and the coating and bioactive agent are protected as the sleeve reduces the amount of direct contact between the coating and an inner wall of a guide tube. When the expandable and collapsible structure is in a dilated (expanded) state, such as at the target side, the outer diameter of the coating is greater than the outer diameter of the sleeve, and the coating is able to contact tissue at the target site and effectively transfer bioactive agent to the tissue. L'invention concerne un ensemble cathéter comprenant une structure pouvant être déployée et repliée (12) dotée d'une surface extérieure (22). La structure pouvant être déployée et repliée est conçue pour passer d'un état contracté à un état dilaté. Un revêtement (32) est disposé sur la surface extérieure de la structure pouvant être déployée et repliée, ledit revêtement comprenant un agent bioactif. Un manchon (14) est disposé sur le revêtement, est conçu pour passer d'un état comprimé à un état élargi et revenir à l'état comprimé, et définit une pluralité d'ouvertures (150) à l'état comprimé. Le diamètre extérieur du revêtement est inférieur au diamètre extérieur du manchon lorsque la structure pouvant être déployée et repliée est à l'état contracté et est supérieur au diamètre extérieur du manchon lorsque ladite structure est à l'état dilaté.