Self-occluding catheter
AssigneeSciMed Life Systems, Inc.
InventorMichael R. Sansoucy
Life of this patent
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Abstract
A self-occluding catheter includes a body portion for connection to extracorporeal equipment. An elongated tubular extension is provided for insertion into a body cavity. The body portion includes a resiliently biased spool supported therein which is slidable between an open and a closed position for alternately permitting and stopping the flow of blood through the catheter during a given medical procedure. The biasing device for resilient biasing the spool preferably comprises one or more magnets fixed within the body portion which generate a magnetic force for urging the magnetically polarized spool to its closed position.
Claims10
A self-occluding catheter comprising:
- a body portion having an inlet port having an inlet conduit extending therefrom, an outlet port having an outlet conduit extending therefrom and a transverse bore in fluid communication with said inlet conduit and said outlet conduit;
- an occluding device movably supported within said transverse bore of said body portion for movement between a closed position occluding said inlet and outlet conduits, and an open position opening said inlet and outlet conduits;
- and
- a biasing device for resiliently maintaining said occluding device in said closed position;
- said occluding device being movable from said closed position to said open position against said resilient bias upon pressure applied by a fluid passed between said inlet and outlet conduits.
Dependencies are inferred from the claim text.