Apparatus and method for providing passage into body viscus
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United States of America Patent
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-
Dec 18, 1990
Grant Date -
N/A
app pub date -
Sep 8, 1988
filing date -
Sep 8, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for providing a percutaneous or non-dissection passage into a body cavity or hollow viscus. A needle is attached to a syringe for insertion within the body cavity. Operation of the syringe confirms proper location of the needle within the body cavity. The needle is coaxially fitted within a dilator which is coaxially fitted within a tube. A leader portion of the dilator follows the insertion path defined by the needle to dilate the tissues for entry of the larger portions of the dilator and the tube. The needle and dilator can be slidably withdrawn to leave the tube in position. Various dilator leader structures are disclosed.
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