Medical device with changeable tip flexibility
First Claim
Patent Images
1. A medical device, comprising:
- an elongate shaft including a core member, a distal tip member, and a tie member;
the core member including a proximal region and a distal region;
the distal tip member including a coupling member and a distal end, the coupling member coupled to the core member adjacent the distal region such that the distal tip is selectively longitudinally movable relative to the core member, and wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member; and
the tie member being disposed over at least a portion of the distal tip member, wherein the tie member is coupled to both the core member and the distal tip member.
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Accused Products
Abstract
A medical device with a changeable flexibility and a method of using the same. The medical device may include a core member, a tip member, and a tie member. The tip member may be configured to longitudinally shift relative to core member, which may alter the flexibility of the medical device.
129 Citations
37 Claims
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1. A medical device, comprising:
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an elongate shaft including a core member, a distal tip member, and a tie member; the core member including a proximal region and a distal region; the distal tip member including a coupling member and a distal end, the coupling member coupled to the core member adjacent the distal region such that the distal tip is selectively longitudinally movable relative to the core member, and wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member; and the tie member being disposed over at least a portion of the distal tip member, wherein the tie member is coupled to both the core member and the distal tip member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A medical device, comprising:
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an elongate shaft including a core member, a distal tip member, and a tie member; the core member including a proximal region and a distal region; the distal tip member including a coupling member and a distal end, the coupling member coupled to the core member adjacent the distal region such that the distal tip is selectively longitudinally movable relative to the core member, and wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member; and the tie member being disposed over at least a portion of the distal tip member, wherein the tie member includes a coil. - View Dependent Claims (14)
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15. A medical device, comprising:
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a core member having a proximal region, a distal region, and a distal stop; a longitudinally adjustable distal tip coupled to the outer surface of the core member adjacent the distal region, the longitudinally adjustable distal tip including a distal end disposed distally of the core member and a coupling member coupled to the outer surface of the distal region of the core member; and the distal tip being configured to be selectively adjustable between a first generally elongated position wherein the coupling member is disposed adjacent the distal stop, and a second generally shortened position wherein the coupling member is disposed a distance proximally of the distal stop. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A medical device, comprising:
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a core member having a proximal region, a distal region, and a distal stop, wherein the distal region includes a plurality of radial flanges; a longitudinally adjustable distal tip coupled to the core member adjacent the distal region, the longitudinally adjustable distal tip including a distal end and a coupling member coupled to the distal region of the core member; and the distal tip being configured to be selectively adjustable between a first generally elongated position wherein the coupling member is disposed adjacent the distal stop, and a second generally shortened position wherein the coupling member is disposed a distance proximally of the distal stop. - View Dependent Claims (24, 25, 26, 27)
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28. A medical device, comprising:
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a core member having a proximal region, a distal region, and a distal stop; a longitudinally adjustable distal tip coupled to the core member adjacent the distal region, the longitudinally adjustable distal tip including a distal end and a coupling member coupled to the distal region of the core member; and a tie member coupled to the longitudinally adjustable distal tip; wherein the distal tip being configured to be selectively adjustable between a first generally elongated position wherein the coupling member is disposed adjacent the distal stop, and a second generally shortened position wherein the coupling member is disposed a distance proximally of the distal stop, and wherein the distal tip shifts between the first and second positions by rotating the core member while maintaining the position of the tie member relative to the core member.
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29. A medical device, comprising:
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a core member having a proximal region and a distal region; and a longitudinally adjustable distal tip member non-releasably coupled to the core member adjacent the distal region, the distal tip member being configured to reversibly shift between a first generally elongated position and a second generally shortened position, wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member. - View Dependent Claims (30)
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31. A medical device, comprising:
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a core member having a proximal region and a flanged region; a longitudinally adjustable distal tip member disposed adjacent the flanged region, the distal tip member being configured to selectively shift between a first generally elongated position and a second generally shortened position, wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member; means for coupling the distal tip member to the flanged region; and means for shifting the distal tip member between the first and second positions, wherein the distal tip member is non-releasably coupled to the core member.
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32. A method of altering the length of a portion of a medical device, the method comprising:
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providing a medical device including a core member having a proximal region, a distal region, and a distal stop;
a longitudinally adjustable distal tip member coupled to the core member adjacent the distal region, the longitudinally adjustable distal tip member including a distal end and a coupling member coupled to the distal region of the core member; and
the distal tip member being positioned in a first position and being configured to selectively shift between the first position and a second position;advancing the medical device through a body lumen to a target location; advancing a gripping member over the medical device so that gripping member is positioned adjacent the distal tip member; gripping the medical device with the gripping member adjacent the distal tip member; and altering the position of the core member such that the distal tip shifts from the first position to the second position. - View Dependent Claims (33, 34, 35)
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36. A medical device, comprising:
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an elongated core member including a proximal region and a distal region; and a distal tip member including a distal end and a non-releasable coupling coupled to the core member adjacent the distal region of the core member for selective longitudinal adjustment of the positioning of the non-releasable coupling along the distal region of the core member, wherein the core member extends proximally from the distal tip member, and the distal tip member extends distally from the core member. - View Dependent Claims (37)
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Specification