Balloon stretch mechanism

A mechanism advances to stretch an intraaortic balloon prior to insertion or removal. One embodiment includes a member which extends through a catheter from the handle to the balloon, and which advances to extend the balloon without appreciably twisting it. A spring detent assembly in the handle def...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MILDER, FREDRIC L, MOUTAFIS, TIMOTHY E
Format:	Patent
Sprache:	eng
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:	A mechanism advances to stretch an intraaortic balloon prior to insertion or removal. One embodiment includes a member which extends through a catheter from the handle to the balloon, and which advances to extend the balloon without appreciably twisting it. A spring detent assembly in the handle defines a precise amount of extension delivered by the member. The mechanism permits the balloon to be fully relaxed once it is inserted and to be recompacted, following use, for removal from the patient. The device is of particular utility for a large diameter, irregular or polygonal non-cylindrical balloon, and for inserting a balloon along an arterial path having a narrow passage or sharp curve.