Clip device
First Claim
1. A clip device for a living tissue in a body cavity, comprising:
- an introducing tube insertable into the body cavity;
an operating member advanceably and retreatably inserted into the introducing tube and having a distal end portion;
an operating wire advanceably and retreatably inserted into the operating member and having a distal end portion and a retainer attached to the distal end portion;
a clip having a proximal end portion and a pair of arm portions extending from the proximal end portion and provided with a tendency to open;
a clip squeezing ring removably attached to the distal end portion of the operating member for closing the arm portions of the clip by fitting to the arm portions of the clip;
a coupling member insertable into the clip squeezing ring, the coupling member being removably engaged with the retainer and having a hook portion to be engaged with the proximal end portion of the clip; and
holding means for holding the coupling member inside the clip squeezing ring by an elastic deformation of the coupling member such that the coupling member can be removed from the clip squeezing ring when the operating wire is retreated.
1 Assignment
0 Petitions
Accused Products
Abstract
A clip device for a living tissue in a body cavity includes an introducing tube insertable into the body cavity. An operating member of the device is advanceably and retreatably inserted into the introducing tube; the operating member has a distal end portion. An operating wire is advanceably and retreatably inserted into the operating member, and the operating wire has a distal end portion and a retainer attached to the distal end portion of the operating wire. The clip device further includes a clip having a proximal end portion and a pair of arm portions extending from the proximal end portion and provided with a tendency to open. A clip squeezing ring is removably attached to the distal end portion of the operating member for closing the arm portions of the clip by fitting to the arm portions of the clip. And a coupling member is insertable into the clip squeezing ring, and the coupling ring is removably engaged with the retainer. The coupling ring further includes a hook portion to be engaged with the proximal end portion of the clip; holding member holds the coupling member inside the clip squeezing ring such that the coupling member can be removed from the clip squeezing ring when the operating wire is retreated. At least one of the arm portions is bent inward so as to be bow-shaped, and has an inner side provided with friction increasing the structure for increasing friction between the inner side of the arm portion and the living tissue.
483 Citations
14 Claims
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1. A clip device for a living tissue in a body cavity, comprising:
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an introducing tube insertable into the body cavity; an operating member advanceably and retreatably inserted into the introducing tube and having a distal end portion; an operating wire advanceably and retreatably inserted into the operating member and having a distal end portion and a retainer attached to the distal end portion; a clip having a proximal end portion and a pair of arm portions extending from the proximal end portion and provided with a tendency to open; a clip squeezing ring removably attached to the distal end portion of the operating member for closing the arm portions of the clip by fitting to the arm portions of the clip; a coupling member insertable into the clip squeezing ring, the coupling member being removably engaged with the retainer and having a hook portion to be engaged with the proximal end portion of the clip; and holding means for holding the coupling member inside the clip squeezing ring by an elastic deformation of the coupling member such that the coupling member can be removed from the clip squeezing ring when the operating wire is retreated.
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2. A clip unit for a living tissue in a body cavity to be used with a clip operating device having an introducing tube insertable into the body cavity, an operating member advanceably and retreatably inserted into the introducing tube and having a distal end portion, and an operating wire advanceably and retreatably inserted into the operating member and having a distal end portion and a retainer attached to the distal end portion, the clip unit comprising:
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a clip having a proximal end portion and a pair of arm portions extending from the proximal end portion and provided with a tendency to open; a clip squeezing ring removably attachable to the distal end portion of the operating member of the clip operating device for closing the arm portions of the clip by fitting to the arm portions of the clip; a coupling member insertable into the clip squeezing ring, the coupling member being removably engagable with the retainer of the operating wire of the clip operating device and having a hook portion to be engaged with the proximal end portion of the clip; and holding means for holding the coupling member inside the clip squeezing ring by an elastic deformation of the coupling member such that the coupling member can be removed from the clip squeezing ring when the coupling member is retreated. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification