Basket catheter, method for producing the same and medical treatment instrument
AssigneeKaneka Corporation
InventorMasayuki Takatera
Life of this patent
Estimating the term…
Abstract
The present invention aims to provide a basket catheter that easily transmits rotational torque on a proximal side to a basket part and can remove a captured foreign matter. The basket catheter (1) has a distal side and a proximal side, has an outer tubular member (2), an inner tubular member (3) disposed in a lumen of the outer tubular member (2) and an expandable basket part (10) disposed on the distal side of the inner tubular member (3) and including elastic wires (15). The inner tubular member (3) includes a hollow coil body (4) formed of a wire wound spirally. In the above basket catheter (1), the elastic wires (15) and the inner tubular member (3) are preferably connected together through a tubular connector (20).
Claims13
A basket catheter, comprising:
- an outer tubular member;
- an inner tubular member disposed in a lumen of the outer tubular member and having a distal end and a proximal end;
- an expandable basket part disposed on a distal side of the inner tubular member and including elastic wires, and
- a tubular connector having a proximal end and a distal end,
- wherein the inner tubular member includes a hollow coil body formed of a wire wound spirally;
- the elastic wires and the inner tubular member are connected together through the tubular connector;
- the tubular connector has a small-diameter portion at the proximal end, the small-diameter portion has an outer diameter, which is smaller than an outer diameter of the distal end of the tubular connector, and the small-diameter portion is directly connected to the distal end of the inner tubular member so that an inner diameter of the small-diameter portion is the same as or larger than an inner diameter of the distal end of the inner tubular member.
Dependencies are inferred from the claim text.