Clipping device
First Claim
Patent Images
1. A clipping device comprising:
- a sheath member to be inserted in the body of the patient;
an actuating wire received in the sheath member so as to be longitudinally movable relative to the sheath member;
a clip unit attached to the clipping device in advance and having a tissue clip for clipping in the body of the patient and a coupling member arranged at a distal end of the actuating wire;
wherein;
the coupling member includes a first end fastened to the distal end of the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction and a second end attached to the tissue clip; and
when applying the tissue clip, the second end of the coupling member is deformable upon exertion of a force in a proximal direction at the first end of the coupling member that is greater than a predetermined amount so as to prevent a subsequent attachment of the second end to another tissue clip.
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Accused Products
Abstract
The present invention provides a clipping device having a coil sheath inserted into an insertion tube in a back/forth movable way to allow it to be inserted into a body cavity, an operation wire inserted into the coil sheath in a back/forth movable way, and a clip directly connected to a distal end of the operation wire to allow it to clip a living tissue.
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Citations
24 Claims
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1. A clipping device comprising:
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a sheath member to be inserted in the body of the patient; an actuating wire received in the sheath member so as to be longitudinally movable relative to the sheath member; a clip unit attached to the clipping device in advance and having a tissue clip for clipping in the body of the patient and a coupling member arranged at a distal end of the actuating wire; wherein; the coupling member includes a first end fastened to the distal end of the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction and a second end attached to the tissue clip; and when applying the tissue clip, the second end of the coupling member is deformable upon exertion of a force in a proximal direction at the first end of the coupling member that is greater than a predetermined amount so as to prevent a subsequent attachment of the second end to another tissue clip. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A clipping device to be used in combination with an endoscope having a channel, the device comprising:
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an insertion tube to be inserted in the body of the patient through the channel; a sheath member to be inserted in the insertion tube so as to be longitudinally movable relative to the insertion tube; an actuating wire received in the sheath member so as to be longitudinally movable relative to the sheath member; a clip unit attached to the clipping device in advance and having a tissue clip for clipping in the body of the patient and a coupling member including a first end fastened to a distal end of the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction and a second end attached to the tissue clip; an operation unit for exercising a pulling action on the actuating wire to exert the force in the proximal direction at the first end of the coupling member, wherein; when applying the tissue clip, the first end of the coupling member is kept fastened to the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction, and the second end of the coupling member is deformable upon exertion of a force in a proximal direction at the first end of the coupling member due to the operation unit so as to prevent a subsequent attachment of the second end to another tissue clip. - View Dependent Claims (19, 20, 21, 22)
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23. A method for clipping tissue using a clipping device in combination with an endoscope having a channel, the method comprising:
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inserting an insertion tube in the body of the patient through the channel; inserting a sheath member in the insertion tube so as to be longitudinally movable relative to the insertion tube; receiving an actuating wire in the sheath member so as to be longitudinally movable relative to the sheath member; providing a clip unit attached to the clipping unit in advance and having a tissue clip for clipping in the body of the patient; attaching a first end of a coupling member to a distal end of the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction; attaching a second end of the coupling member to the tissue clip; projecting the tissue clip from a distal end of the insertion tube; pulling on the actuating wire to exert a force in the proximal direction at the first end of the coupling member, when applying the tissue clip, keeping the first end of the coupling member fastened to the actuating wire to be immovable in an axial direction of the actuating wire and a direction deviating from the axial direction; and deforming the second end of the coupling member upon exertion of the force thereby preventing a subsequent attachment of another tissue clip to the coupling member.
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24. A tissue clipping method comprising:
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inserting a sheath member in a body of a patient; receiving an actuating wire in the sheath member so as to be longitudinally movable relative to the sheath member; arranging a clip unit attached to the clipping device in advance and having a tissue clip for clipping in the body of the patient and a coupling member at a distal end of the actuating wire; making the coupling member, including a first end fastened to the distal end of the actuating wire, immovable in an axial direction of the actuating wire and a direction deviating from the axial direction; attaching a second end of the coupling member to the tissue clip; and when applying the tissue clip, deforming the second end of the coupling member upon exertion of a force in a proximal direction at the first end of the coupling member that is greater than a predetermined amount so as to prevent a subsequent attachment of the second end to another tissue clip.
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Specification