Reverse anastomosis closure clip

A reverse anastomosis clipping system, comprising:

• a clip including a barrel member extending from an open proximal end to a closed distal end to define a cavity therein, and a pair of clip arms, distal ends of which are connected to one another and slidably received within the cavity of the barrel member to be moved between an open configuration, in which proximal ends of the clip arms are separated from one another to receive a target tissue therebetween, and a closed configuration, in which the proximal ends of the clip arms are moved toward one another to grip the target tissue;
• a longitudinal member extending between the clip arms from a proximal end to a distal end and including a lumen extending longitudinally therethrough, the distal end of the longitudinal member in contact with the distal ends of the clip arms to hold the clip arms distally against the barrel member;
• and
• a control member slidably received within the lumen of the longitudinal member so that a distal end of the control member extends distally past the distal end of the longitudinal member and the distal ends of the clip arms to be connected to the distal end of the barrel member, a longitudinal movement of the control member relative to the longitudinal member moving the clip arms between the open and closed configurations.

A reverse anastomosis clipping system, comprising:

• a lumen-apposing metal stent configured to provide a temporary pathway between a first structure along a gastrointestinal tract and a second structure further along the gastrointestinal tract than the first structure via a first tissue perforation through a wall of the first structure and a second tissue perforation through a wall of the second structure;
• a clip configured to be inserted into the second structure via the second tissue perforation upon removal of the lumen-apposing metal stent to close the second tissue perforation from an interior of the second structure, the clip including a pair of clip arms, distal ends of which are connected to one another and received within a cavity of a barrel member to be moved relative thereto between an open configuration, in which proximal ends of the clip arms are separated from one another, and a closed configuration, in which the proximal ends of the clip arms are moved toward one another;
• a longitudinal member extending from a proximal end to a distal end and including a lumen extending therethrough, the longitudinal member positioned between the clip arms such that the distal end of the longitudinal member is pressed distally against the distal ends of the clip arm to hold the clip arms distally against the barrel member;
• and
• a control member slidably received within the lumen of the longitudinal member, the control member extending from a proximal end to a distal end that extends distally past the distal end of the longitudinal member and the distal ends of the clip arms to be releasably connected to the distal end of the barrel member, a longitudinal movement of the control member relative to the longitudinal member moving the clip arms between the open and closed configurations.

A method for treating a tissue defect from a far side of the tissue defect, comprising:

• inserting a clip, in a closed configuration, into a gastrointestinal structure via a tissue perforation through a wall thereof, the clip including a pair of clip arms, distal ends of which are connected to one another and slidably received within a cavity of a barrel member;
• moving the clip from the closed configuration, in which proximal ends of the clip arms are drawn toward one another, to an open configuration, in which proximal ends of the clip arms are moved away from one another, by moving the barrel member distally along the clip arms to permit the clip arms to revert toward a biased configuration;
• and
• positioning the clip arms about the tissue perforation and moving the clip toward the closed configuration so that surrounding the tissue perforation is drawn between the clip arms and gripped therebetween.