Catheter with atraumatic tip
AssigneeSt. Jude Medical, Atrial Fibrillation Division, Inc.
InventorsEric S. Olson, James V. Kauphusman, Linda K. Nemec, Troy T. Tegg
Life of this patent
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Abstract
A medical device is provided comprising a shaft comprising a first segment and a second segment. The first segment is configured to buckle upon application of a first critical force. The second segment includes an outer surface and an inner surface and is configured to buckle upon application of a second critical force. The second critical force is lower than the first critical force. The medical device further comprises a coil disposed radially inwardly of the inner surface of the second segment.
Claims20
A medical device comprising:
- a shaft comprising a first segment and a second segment,
- wherein the first segment is configured to buckle upon application of a first critical force thereto;
- and
- wherein the second segment includes an outer surface and an inner surface and the second segment is configured to buckle upon application of a second critical force thereto, wherein the second critical force is lower than the first critical force;
- and
- a coil disposed radially inwardly of the inner surface of the second segment.
A medical device comprising:
- a shaft comprising a first segment and a second segment,
- wherein the first segment is configured to buckle upon application of a first critical force thereto;
- and
- wherein the second segment is configured to buckle upon application of a second critical force thereto, wherein the second critical force is lower than the first critical force and is in the range of about 40 grams-force to about 100 grams-force.
A medical device comprising:
- a shaft comprising a first segment and a second segment,
- wherein the first segment is configured to buckle upon application of a first critical force thereto;
- and
- wherein the second segment is configured to buckle upon application of a second critical force thereto, wherein the second critical force is lower than the first critical force;
- and
- means for maintaining an amount of force transmitted by the second segment to tissue contacting the second segment after an application of the second critical force to the second segment.
Dependencies are inferred from the claim text.