Stent And Stent Delivery Device
AssigneeTerumo Kabushiki Kaisha
InventorsShirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
Life of this patent
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Abstract
In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.
Claims21
1-20. (canceled)
An implant device comprising:
- a first layer having a tubular shape and a space therethrough;
- said first layer being composed of a first braid having a first porosity;
- said first braid being entirely composed of a single shape memory metal wire;
- and,
- a second layer having a tubular shape and located within said space within said first layer;
- said second layer being composed of a second braid with a second porosity that is lower than said first porosity;
- said second layer being composed of shape memory metal wire;
- said first layer and said second layer connected to each other at one or more locations to allow said first layer and said second layer to radially expand at about the same time during delivery.
An implant device comprising:
- a tubular first layer composed of a first braid having a first porosity;
- said tubular first braid being entirely composed of one single shape memory metal wire;
- and,
- a tubular second layer located radially within said tubular first layer;
- said tubular second layer being composed of a second braid with a second porosity that is lower than said first porosity;
- said second layer being composed of shape memory metal wire;
- said tubular first layer and said tubular second layer connected to each other at one or more locations to allow said first layer and said second layer to radially expand concurrently during delivery.
An implant device comprising:
- a tubular first layer composed of a first braid with a first porosity and being entirely composed of a single shape memory metal wire;
- and,
- a tubular second layer at least partially encompassed by said tubular first layer;
- said tubular second layer having a second braid with a second porosity that is lower than said first porosity and being composed of shape memory metal wire;
- at least one connection binding said tubular first layer and said tubular second layers together;
- wherein said tubular first layer and said tubular second layer are configured to radially expand during delivery at about the same time.
Dependencies are inferred from the claim text.