Clip device for endoscope
AssigneeOlympus Medical Systems Corp.
InventorsMasaru Yuasa, Yoshitsugu Uekusa, Shinya Ansai, Takushi Haramaki, Shogo Shindo
Life of this patent
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Abstract
A clip device includes a sheath having a lumen with at least one open end and a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration in which the plurality of clip arms are closed to grip the target tissue. Locking mechanisms respectively provided on the plurality of clip arms engage one another for maintaining the second configuration. A restraining mechanism is optionally configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms.
Claims18
A clip device, comprising:
- a sheath;
- a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration, in which the plurality of clip arms are closed to grip the target tissue;
- locking mechanisms respectively provided on the plurality of clip arms to engage one another for maintaining the second configuration;
- and
- a restraining mechanism configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms,
- wherein the restraining mechanism includes a first restraining member and a second restraining member, distal end portions of which are respectively positioned more distally than the locking mechanisms, and
- wherein, in the second configuration, the first restraining member and the second restraining member contact each other and extend distally to push the target tissue away from the locking mechanisms.
A clip device, comprising:
- a sheath including a lumen and at least one open end;
- a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration, in which the plurality of clip arms are closed to grip the target tissue;
- locking mechanisms respectively provided on the plurality of clip arms to engage one another for maintaining the second configuration;
- and
- a restraining mechanism configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms,
- wherein the plurality of clip arms includes a first arm and a second arm;
- and the locking mechanisms are respectively disposed on inner surfaces of the first and second clip arms,
- wherein the restraining mechanism includes a first restraining member and a second restraining member, distal end portions of which are respectively positioned more distally than the locking mechanisms, and
- wherein the first restraining member and the second restraining member contact each other and are deformed to extend distally in the second configuration, thereby pushing the target tissue away from the locking mechanisms.
A clip device, comprising:
- a sheath;
- a plurality of clip arms movable between a first configuration in which the plurality of clip arms are opened to receive a target tissue, and a second configuration, in which the plurality of clip arms are closed to grip the target tissue;
- locking mechanisms respectively provided on the plurality of clip arms to engage one another for maintaining the second configuration;
- and
- a restraining mechanism configured to be associated with the locking mechanisms to prevent the target tissue from being pinched between the locking mechanisms,
- wherein the restraining mechanism includes a first restraining member and a second restraining member, distal end portions of which are respectively positioned more distally than the locking mechanisms, and
- wherein, in the second configuration, the first restraining member and the second restraining member contact each other and are each deformed distally to push the target tissue away from the locking mechanisms.
Dependencies are inferred from the claim text.