Expandable sheath and methods of using the same

EXPANDABLE SHEATH AND METHODS OF USING THE SAME Disclosed herein are expandable introducer sheaths (10) and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a del...

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Bibliographische Detailangaben
Hauptverfasser:	WHITE, Richard D, LE, Tung T, LE, Thanh Huy, GOWDAR, Alpana Kiran, TRAN, Sonny, MAK, Sovanpheap
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 DIAGNOSIS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES SURGERY TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	EXPANDABLE SHEATH AND METHODS OF USING THE SAME Disclosed herein are expandable introducer sheaths (10) and methods of making and using the same. The sheaths minimize trauma to a patient's vasculature by allowing for temporary expansion of a portion of the sheath to accommodate passage of a delivery system for an implant, then return to a non-expanded state after the passage of the device. The sheath includes a foldable inner member (20) having a detached flap structure (30) at its distal tip that facilitates expansion of the sheath lumen to increased diameters, and an elastomeric distal end that reduces push and retrieval forces therethrough. The sheath can include a hemostasis seal (88) on its proximal end to prevent the leakage of blood out of the sheath and prevent ballooning of outer layer of the sheath.