Guide-in-guide catheter system
AssigneeSciMed Life Systems, Inc.
InventorPu Zhou
Life of this patent
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Abstract
A multiple catheter system is described. In one embodiment a medical catheter system includes a first catheter having an entrance orifice, an exit orifice, a channel connecting the entrance orifice and the exit orifice, and a wall surrounding the channel. In this embodiment the hardness of the wall surrounding the channel decreases in hardness then increasing in hardness and then decreasing in hardness again when considered from an initial reference point at the entrance orifice and traveling towards the exit orifice. Another medical catheter system includes a first catheter having an entrance orifice, an exit orifice, a channel linking the entrance orifice and the exit orifice, and a first wall surrounding the channel wherein the first wall has a bendable curve memory portion.
Claims27
A medical catheter system comprising:
- a first catheter having
- an entrance orifice,
- an exit orifice,
- a channel connecting the entrance orifice and the exit orifice, and
- a wall surrounding the channel,
- the hardness of the wall surrounding the channel decreasing in hardness then increasing in hardness and then decreasing in hardness again when considered from an initial reference point at the entrance orifice and traveling towards the exit orifice.
A medical catheter system comprising:
- a first catheter having
- an entrance orifice,
- an exit orifice, and
- a first wall surrounding a channel linking the entrance orifice and the exit orifice, the first wall having a bendable curve memory portion.
A medical catheter system comprising:
- an outer catheter;
- an inner catheter,
- the inner catheter sized to moveably fit within at least a portion of the outer catheter,
- the second inner catheter having a flushing orifice passing through a first wall of the inner catheter,
- the flushing orifice sized to allow flushing fluid to pass between an outside surface of the first wall and an inside surface of the first wall;
- and
- a flushing line, the flushing line coupled to the flushing orifice.
A medical catheter system comprising:
- a first catheter having an inner layer and an outer layer,
- the inner layer having a first hardness and the outer layer having a second hardness, the first hardness being harder than the second hardness.
Dependencies are inferred from the claim text.