Catheter tip and method of attaching a catheter tip to a catheter shaft
OwnerAndrew Forsberginventor
Life of this patent
Estimating the term…
Abstract
The present invention is a method of bonding a shaft tip to a distal end of a catheter or sheath shaft. The method includes extruding a shaft to have an initial outside diameter that is greater than an outside diameter the shaft will have when finished. A lap joint area is then ground into the distal end of the shaft. The tip is then insert molded over the lap joint area. The tip includes a collar at a proximal end of the tip that provides additional thermal mass to facilitate the bonding of the tip to the shaft. The shaft is then ground from its initial outside diameter to its finished outside diameter.
Claims24
A tip for bonding to a distal end of a catheter or sheath shaft, the tip comprising:
- a generally cylindrical first portion including a first outside diameter, a proximal end adapted to bond to the distal end of the shaft, and a distal end opposite the proximal end;
- and
- a collar portion extending around a proximal portion of the first portion and including a second outside diameter that is greater than the first outside diameter.
A method of bonding a tip to a distal end of a catheter or sheath shaft, the method comprising:
- providing a shaft with an initial outside diameter;
- forming a lap joint area in the distal end of the shaft;
- molding the tip over the lap joint area;
- and
- reducing the initial outside diameter of the shaft down to a finished outside diameter.
A method of bonding a tip to a distal end of a catheter or sheath shaft, the method comprising:
- forming an oversized shaft having an oversized outside diameter;
- molding a tip onto a distal end of the oversized shaft;
- and
- converting the oversized shaft into a finished shaft by reducing the oversized outside diameter to a finished outside diameter.
Dependencies are inferred from the claim text.