Indwelling device
AssigneeSb-Kawasumi Laboratories, Inc.
InventorsTakashi Yoshimori, Tomohiro Emi, Naoaki Yamamoto
Life of this patent
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Abstract
A shaft-shaped member 30 of an indwelling device 1 has an engaged portion 33 with which an engaging portion 15 of a tubular treatment device 10 engages, and a restriction portion 34 that restricts expansion of the engaging portion 15 engaged with the engaged portion 33 in a radial direction in cooperation with a linear member 36. The restriction portion 34 releases restriction on the expansion of the engaging portion 15 in the radial direction by releasing winding of the linear member 36 around the engaging portion 15.
Claims3
An indwelling device, comprising:
- a tubular treatment device for indwelling a living body lumen, wherein the tubular treatment device is expandable in a radial direction, and has an engaging portion formed at an open end of the tubular treatment device;
- a sheath capable of accommodating the tubular treatment device;
- and
- an elongated shaft-shaped member configured to be movable forward and rearward inside the sheath along an axial direction of the sheath,
- wherein the shaft-shaped member has
- an engaged portion for engaging the engaging portion of the tubular treatment device, and
- a restriction portion configured to restrict expansion of the engaging portion engaged with the engaged portion in the radial direction in cooperation with a linear member having at least a portion spirally wound around the engaging portion, and
- the restriction portion includes a holding portion that holds the linear member, restricts displacement of the linear member held by the holding portion in the radial direction, and releases restriction on the expansion of the engaging portion in the radial direction by releasing the spirally wound portion of the linear member from around the engaging portion.
An indwelling device, comprising:
- a tubular treatment device for indwelling a living body lumen, wherein the tubular treatment device is expandable in a radial direction, and has an engaging portion formed at an open end of the tubular treatment device,
- a sheath capable of accommodating the tubular treatment device;
- and
- an elongated shaft-shaped member configured to be movable forward and rearward inside the sheath along an axial direction of the sheath,
- wherein the shaft-shaped member has
- an engaged portion for engaging the engaging portion of the tubular treatment device, and
- a restriction portion configured to restrict expansion of the engaging portion engaged with the engaged portion in the radial direction in cooperation with a linear member,
- wherein the linear member has a first linear member having a portion wound around the engaging portion and a second linear member that holds the first linear member to be non-detachable from the engaging portion, and
- the restriction portion includes a holding portion that holds the second linear member, restricts displacement of the second linear member held by the holding portion in the radial direction, restricts the expansion of the engaging portion in the radial direction by causing the first linear member and the second linear member to engage with each other, and releases the restriction by causing the first linear member and the second linear member to disengage from each other by releasing the wound portion of the first linear member from around the engaging portion.
Dependencies are inferred from the claim text.