Releasably locking introducer devices
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United States of America Patent
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-
Jul 21, 1998
Grant Date -
N/A
app pub date -
Oct 20, 1995
filing date -
Oct 20, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A releasably locking dilator/sheath medical introducer device is provided having a dilator with a non-circular cross-sectional shape to enable insertion of a catheter, guide wire and the like into a patient. More particularly, the invention provides an introducer device that has dilator with a non-circular cross-sectional shape, particularly a substantially oval cross-sectional shape, and that comprises a releasable lock for the dilator and the circumscribing sheath components of the device. In preferred embodiments, the introducer device also includes a visual indicator and/or a tactile indicator to conveniently inform a user of the device whether the dilator/sheath assembly is in a locked or unlocked position. In another aspect, a releasably locking introducer device is provided that has a dilator that can rotate within a circumscribing sheath component wherein the dilator includes a proximal end component that can rotate around the longitudinal axis of the device relative to and independently of the dilator and sheath components to releasably lock the dilator within the circumscribing sheath.
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