Medical devices having a releasable member and methods of using the same
First Claim
Patent Images
1. A medical device comprising:
- an elongate member having a first proximal end, a first distal end, a proximal portion and a shaft extending from the proximal portion, the proximal portion having a first outside diameter, the shaft having a second proximal end attached to the proximal portion and a second distal end, the shaft having a second outside diameter that is less than the first outside diameter of the proximal portion;
an intermediate member releasably attached to the elongate member and releasably disposed on the shaft, the intermediate member having a third proximal end disposed between the first proximal end and the first distal end, a third distal end, a third outside diameter, and an intermediate member body defining an intermediate member lumen, the third outside diameter being greater than the first outside diameter of the proximal portion, the intermediate member lumen having a first inside diameter that is less than the first outside diameter of the proximal portion;
a cap releasably attached to the intermediate member and releasably disposed on the shaft, the cap having a third fourth proximal end, a fourth distal end, and a cap body defining a cap lumen; and
a sheath partially disposed between the intermediate member and the cap and disposed on the shaft, the sheath having a fifth proximal end, a fifth distal end, and a sheath body defining a first sheath opening on the fifth proximal end of the sheath, a second sheath opening on the fifth distal end of the sheath, and a sheath lumen extending from the first sheath opening to the second sheath opening, the first sheath opening having a second inside diameter that is greater than the first inside diameter of the intermediate member lumen.
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Abstract
Medical devices having a releasable member are described. Methods of using medical devices having a releasable member are also described. An example medical device comprises an elongate member, an intermediate member, a sheath, and a cap. Each of the intermediate member, sheath, and cap are releasably disposed on the elongate member.
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Citations
20 Claims
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1. A medical device comprising:
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an elongate member having a first proximal end, a first distal end, a proximal portion and a shaft extending from the proximal portion, the proximal portion having a first outside diameter, the shaft having a second proximal end attached to the proximal portion and a second distal end, the shaft having a second outside diameter that is less than the first outside diameter of the proximal portion; an intermediate member releasably attached to the elongate member and releasably disposed on the shaft, the intermediate member having a third proximal end disposed between the first proximal end and the first distal end, a third distal end, a third outside diameter, and an intermediate member body defining an intermediate member lumen, the third outside diameter being greater than the first outside diameter of the proximal portion, the intermediate member lumen having a first inside diameter that is less than the first outside diameter of the proximal portion; a cap releasably attached to the intermediate member and releasably disposed on the shaft, the cap having a third fourth proximal end, a fourth distal end, and a cap body defining a cap lumen; and a sheath partially disposed between the intermediate member and the cap and disposed on the shaft, the sheath having a fifth proximal end, a fifth distal end, and a sheath body defining a first sheath opening on the fifth proximal end of the sheath, a second sheath opening on the fifth distal end of the sheath, and a sheath lumen extending from the first sheath opening to the second sheath opening, the first sheath opening having a second inside diameter that is greater than the first inside diameter of the intermediate member lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A medical device comprising:
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an elongate member having a first proximal end, a first distal end, a proximal portion and a shaft extending from the proximal portion, the proximal portion having a first outside diameter, the shaft having a second proximal end attached to the proximal portion and a second distal end, the shaft having a second outside diameter that is less than the first outside diameter of the proximal portion; an intermediate member releasably attached to the elongate member and releasably disposed on the shaft, the intermediate member having a third proximal end disposed between the first proximal end and the first distal end, a third distal end, a third outside diameter, an outer surface, and an intermediate member body defining an intermediate member lumen, the third outside diameter being greater than the first outside diameter of the proximal portion, the outer surface having a first tapered portion, the intermediate member lumen having a first inside diameter that is less than the first outside diameter of the proximal portion; a cap releasably attached to the intermediate member and releasably disposed on the shaft, the cap having a fourth proximal end, a fourth distal end, an inner surface, and a cap body defining a cap lumen, the inner surface having a second tapered portion, the cap formed of a first material; and a sheath disposed between and contacting the first tapered portion of the intermediate member and the second tapered portion of the cap, the sheath disposed on the shaft and having a fifth proximal end, a fifth distal end, a tapered proximal portion, and a sheath body defining a first sheath opening on the fifth proximal end of the sheath, a second sheath opening on the fifth distal end of the sheath, and a sheath lumen extending from the first sheath opening to the second sheath opening, the first sheath opening having a second inside diameter that is greater than the first inside diameter of the intermediate member lumen, the sheath formed of a second material; wherein the first tapered portion of the intermediate member is disposed within the sheath lumen; and wherein the second material is relatively more flexible than the first material. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A medical device comprising:
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an elongate member having a first proximal end, a first distal end, a proximal portion and a shaft extending from the proximal portion, the proximal portion having a first outside diameter, the shaft having a lengthwise axis, a second proximal end attached to the proximal portion, a second distal end, an outer surface, and a protuberance, the shaft having a second outside diameter that is less than the first outside diameter of the proximal portion, the protuberance disposed on the outer surface of the shaft and extending away from the lengthwise axis of the shaft, the protuberance disposed between the second proximal end and the second distal end; an intermediate member releasably attached to the elongate member and releasably disposed on the shaft, the intermediate member having a lengthwise axis, a third proximal end disposed between the first proximal end and the first distal end, a third distal end, a third outside diameter, an outer surface, an inner surface, and an intermediate member body defining an intermediate member lumen, threads, and a recess, the third outside diameter being greater than the first outside diameter of the proximal portion, the outer surface having a first tapered portion, the intermediate member lumen having a first inside diameter that is less than the first outside diameter of the proximal portion, the threads of the intermediate member defined on the outer surface of the intermediate member, the recess defined on the inner surface and extending away from the lengthwise axis of the intermediate member; a cap releasably attached to the intermediate member and releasably disposed on the shaft, the cap having a fourth proximal end, a fourth distal end, an inner surface, and a cap body defining a cap lumen and threads, the inner surface having a second tapered portion, the cap formed of a first material, the threads of the cap defined on the inner surface of the cap, the threads of the cap sized and configured to mate with the threads defined by the intermediate member body; and a sheath disposed between and contacting the first tapered portion of the intermediate member and the second tapered portion of the cap, the sheath disposed on the shaft and having a fifth proximal end, a fifth distal end, a tapered proximal portion, and a sheath body defining a first sheath opening on the fifth proximal end of the sheath, a second sheath opening on the fifth distal end of the sheath, and a sheath lumen extending from the first sheath opening to the second sheath opening, the first sheath opening having a second inside diameter that is greater than the first inside diameter of the intermediate member lumen, the sheath formed of a second material; wherein the first tapered portion of the intermediate member is disposed within the sheath lumen; wherein the second material is relatively more flexible than the first material; and wherein the protuberance of the shaft is disposed within the recess defined by the intermediate member.
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Specification