US 8,945,154 B2Granted

Tissue closing device

AssigneeTerumo Kabushiki Kaisha

InventorsTomoji Maruyama, Masakatsu Kawaura, Ryou Nakamoto

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Abstract

A tissue closing device includes an elongate arrangement device of which a distal end portion can penetrate an opening penetrating an living tissue membrane and which has a handling portion on the proximal side, and a clip which is detachably retained at a distal end portion of the arrangement device and which closes the opening. The arrangement device includes a retaining member for detachably retaining the clip and pulling the clip in the proximal direction, a cover tube, and a fixed tube. The handling portion has a first elastic member. When a restriction for maintaining the coil spring in a deformed state is canceled, the thread is moved to the proximal direction by the restoring force of the coil spring in the condition where the clip is locked to a distal end portion of the fixed tube, and the clip is pulled in the axial direction by the thread, whereby a deformation portion is deformed.

Claims41

Dependent claims

A tissue closing device for closing an opening penetrating a living tissue, comprising:

a closure for closing the opening, the closure comprising a seal portion adapted to cover the opening and a periphery of the opening from one side of a wall of a living body cavity, and a deformable deformation portion;
and
an arrangement device detachably retaining the closure to arrange the closure at a position to close the opening,
the arrangement device comprising:
a lock member having an elongate shape such as to be able to pass through the opening and locking at least a part of the closure in a retained state;
a handling portion provided on the proximal side of the lock member;
the handling portion comprises an elastic member configured to apply a force that moves the closure and the lock member relative to each other, and a movable trigger means movable to an actuating position for actuating the elastic member;
wherein with the elastic member actuated by the trigger means, the elastic member applies the force that moves the closure and the lock member relative to each other while the closure is locked by the lock member to thereby deform the deformation portion;
the trigger means comprising a restrictor configured to be positioned in one position in which the restrictor retains the elastic member in an active state and prevents the elastic member from applying the force that moves the closure and the lock member relative to each other, the restrictor also being configured to be positioned in an other position in which the restrictor no longer retains the elastic member so that the elastic member applies the force that moves the closure and the lock member relative to each other, the restrictor moving from the one position to the other position when the trigger means is moved to the actuating position;
and
the trigger means being configured so that movement of the handling portion in a proximal direction away from the closure while the seal portion is in contact with a surface of the living tissue at a distal side from a skin surface causes, by itself, the trigger means to automatically move to the actuating position, so that the restrictor moves to the other position and the elastic member applies the force that moves the closure and the lock member relative to each other.

8 more elements

A tissue closing device for closing an opening penetrating a living tissue comprising:

a closure positionable in a retained state relative to the opening in the living body tissue to close the opening, the closure comprising a seal portion configured to cover the opening penetrating the living tissue as well as a periphery of the opening from one side of a wall of a living body cavity, and a deformable deformation portion which is deformable to cover the opening penetrating the living tissue from an opposite side of the wall of the living body cavity;
and
an arrangement device to which the closure is detachably retained to arrange the closure at a position to close the opening in the living tissue, the arrangement device comprising:
a thread support;
a thread operatively connecting the closure to the thread support so that the closure is positioned distally of the thread support and so that a pulling force applied to the closure is transmitted to the thread support by way of the thread and is applied to the thread support;
a stopper holding the thread support to stop the thread support from moving in a distal direction when the pulling force applied to the thread support is less than a predetermined threshold and to release the thread support and permit the thread support to move in the distal direction when the pulling force applied to the thread support in the distal direction exceeds the predetermined threshold;
an elongated tubular member configured to pass through the opening in the living body and act on the closure to deform the deformation portion so that the deformation portion covers the opening from the opposite side of the wall of the living body cavity, the closure being positioned distally of a distal end of the elongated tubular member;
an elastic member positioned to apply an urging force between the elongated tubular member and the thread support which urges the thread support away from the elongated tubular member, the elastic member being arranged to apply the urging force in the distal direction and proximal direction;
the elongated tubular member and the thread support being operatively connectable to one another such that the elongated tubular member and the support member move together, and thereafter being operatively disconnectable from one another after the stopper releases the thread support to allow the thread support to move away from the elongated tubular member under the urging force of the elastic member and thus pull the thread proximally;
and
at least a portion of the arrangement device being movable in the proximal direction away from the closure while the seal portion is in contact with the surface of the wall on the one side of the wall to urge the thread support in the distal direction by way of the thread so that the stopper automatically releases the thread support when the pulling force applied to the thread support in the distal direction exceeds the predetermined threshold.

8 more elements

A tissue closing device for closing an opening penetrating a living tissue, comprising:

a closure positionable in a retained state relative to the opening in the living body tissue to close the opening, the closure comprising a seal portion configured to cover the opening penetrating the living tissue as well as a periphery of the opening from one side of a wall of a living body cavity, and a deformable deformation portion which is deformable to cover the opening penetrating the living tissue from an opposite side of the wall of the living body cavity;
and
an arrangement device to which the closure is detachably retained to arrange the closure at a position to close the opening in the living tissue, the arrangement device comprising:
an elongated lock member configured to pass through the opening in the living body and act on the closure to lock at least a part of the closure in the retained state;
a stopper operatively connectable to the elongated lock member to fix the elongated lock member against movement in a distal direction when a distally directed pulling force applied to the stopper is less than a predetermined threshold, and operatively disconnectable from the elongated lock member to permit the elongated lock member to move in the distal direction relative to the stopper when the distally directed pulling force applied to the stopper exceeds the predetermined threshold;
an elastic member positioned to apply an urging force acting in the distal direction and proximal direction, the urging force being applied to the closure which urges the closure in the proximal direction relative to the elongated lock member to pull the closure towards the elongated lock member;
and
the stopper being configured so that upon applying a distally directed pulling force to the stopper that exceeds the predetermined threshold while the stopper and the elongated lock member are operatively connected, the stopper automatically releases the elongated lock member to allow the elongated lock member to move in the distal direction.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/067,744Filed 28 Sep 2006
Priority: JP 2005-28540229 Sep 2005
Published: US 2009/0270885 A129 Oct 2009
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 17/0057
Surgical instruments, devices or methods: implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel…
A61B 2017/00575
Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal…
A61B 2017/00606
For closure at remote site, e.g. closing atrial septum defects: implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
A61B 2017/00619
For closure at remote site, e.g. closing atrial septum defects: locking means for locking the implement in expanded state