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US 2003/0199849 A1Published application
Medical device with atraumatic tip
AssigneeSciMed Life Systems, Inc.
InventorSteven S. Hackett
Life of this patent
Estimating the term…
Abstract
A medical device, such as a catheter, having an alternative design distal tip, and method of using and making the same. In some embodiments, the distal tip includes a flared portion that extends away from the longitudinal axis of the medical device, and in some cases can be folded back so as to be atraumatic to tissues when advancing through a body orifice.
Claims24
A medical device, comprising:
- an elongate shaft extending along a longitudinal axis, the shaft including a proximal portion, and a distal portion;
- a distal tip disposed at the distal portion of the shaft, the distal tip including a proximal portion disposed adjacent to the distal portion of the shaft, and a flared portion extending at an angle away from the longitudinal axis, the flared portion including a distal end that terminates at a point further from the longitudinal axis than the proximal portion of the distal tip.
A catheter, comprising:
- an elongate shaft extending along a longitudinal axis, the shaft including a proximal portion, and a distal portion;
- and
- a distal tip disposed at the distal portion of the shaft, the distal tip including a flared portion that is folded back proximally so as to define a distal terminus and a distal end;
- wherein the distal terminus is located distally of the distal end along the longitudinal axis.
1 more element
A catheter, comprising:
- an elongate shaft including a proximal portion, a distal portion, and a lumen extending therethrough;
- a distal tip disposed at the distal portion, the distal tip including a distal terminus and a distal end;
- wherein the distal tip is adapted and configured to shift between a first position and a second position such that when the distal tip is in the first position, the distal end is located distally of the distal terminus, and when the distal tip is in the second position the distal tip is folded back proximally such that the distal terminus is located distally of the distal end.
A method of advancing a catheter, comprising:
- providing a catheter including an elongate shaft having a distal tip, the distal tip including a distal end and a distal terminus, wherein the distal tip is adapted and configured to shift between a first position and a second position such that when the distal tip is in the first position, the distal end is located distally of the distal terminus, and when the distal tip is in the second position the distal tip is folded back proximally such that the distal terminus is located distally of the distal end;
- providing a loading tool having a lumen adapted for slidably receiving the catheter;
- disposing the catheter into the lumen of the loading tool such that the distal tip engages the loading tool and shifts from the second position to the first position;
- and
- advancing the catheter into a blood vessel through an introducer sheath.
2 more elements
A catheter, comprising:
- an elongate shaft extending along a longitudinal axis, the shaft including a proximal portion, a distal portion, and a distal tip disposed at the distal portion, the distal tip including a proximal portion attached to the shaft, and a flared portion, wherein at least a portion of the flared portion extends perpendicularly from the longitudinal axis of the shaft.
A method of advancing a catheter comprising:
- providing a catheter including an elongated shaft extending along a longitudinal axis, the shaft having a distal tip, the distal tip including a proximal portion disposed adjacent the shaft and a distal portion, wherein the distal tip is adapted and configured to shift between the first position and a second position such that when the distal tip is in the first position, the distal portion of the distal tip extends about the longitudinal axis, and in the second position, the distal portion of the distal tip extends at an angle away from the longitudinal axis;
- providing a loading tool having a lumen adapted for slidably receiving the catheter;
- disposing the catheter into the lumen of the loading tool such that the distal tip engages the loading tool and shifts from the second position to the first position;
- and
- advancing the catheter into a blood vessel through and introducer sheath.
2 more elements
A catheter, comprising:
- an elongate shaft including a proximal portion, and a distal portion;
- and
- a means for providing a distal tip on the distal portion of the shaft.
Dependencies are inferred from the claim text.