Multiple open/close of reloadable clip

A system for treating tissue, comprising:

• a catheter extending longitudinally from a proximal end to a distal end and including a lumen extending therethrough, the lumen including an increased diameter groove extending from an abutment structure at a proximal groove end to a distal groove end, a distal end portion of the lumen extending distally from the groove to a distal end of the catheter having a diameter smaller than that of the groove;
• a clip assembly releasably received within the distal end of the lumen, the clip assembly including first and second clip arms, a proximal end of each of the first and second clip arms being slidably received within a channel of a capsule, a proximal portion of the capsule being slidably received through the distal portion of the lumen into the groove, the capsule including proximal tabs biased toward a non-engaging configuration in which the proximal tabs are drawn radially into the channel out of engagement with the catheter;
• and
• a control member extending through the lumen to a control member distal end releasably coupled to the clip assembly so that movement of the control member relative to the catheter moves the first and second clip arms relative to the capsule between a tissue receiving configuration in which distal ends of the first and second clip arms are separated from one another and a tissue gripping configuration in which the distal ends of the first and second clip arms are moved toward one another, the control member including an abutment structure configured to move between a first position in which the abutment structure engages the proximal tabs and forces them radially outward into an engaging configuration in which the proximal tabs engage the distal groove end, withdrawal of the abutment structure from between the proximal tabs freeing the proximal tabs to return to the non-engaging configuration.

A system for treating tissue, comprising:

• a clip assembly including first and second clip arms, a proximal end of each of the first and second clip arms being slidably received within a channel of a capsule, a proximal portion of the capsule including a first coupling structure;
• a catheter extending longitudinally from a proximal end to a distal end and including a lumen extending therethrough, the catheter including at a distal end thereof a second coupling structure configured to be selectively engageable with the first coupling structure to releasably couple the catheter to the clip assembly;
• and
• a control member extending through the lumen to a control member distal end releasably coupled to the clip assembly so that movement of the control member relative to the catheter moves the first and second clip arms relative to the capsule between a tissue receiving configuration in which distal ends of the first and second clip arms are separated from one another and a tissue gripping configuration in which the distal ends of the first and second clip arms are moved toward one another, the control member including an abutment structure configured to move between a first position in which the abutment structure engages the second coupling structure forcing the second coupling structure radially outward into an engaging configuration in the second coupling structure engages the first coupling structure, withdrawal of the abutment structure from engagement with the second coupling structure freeing the second coupling structure to a disengaged configuration in which the second coupling structure is withdrawn radially inward out of engagement with the first coupling structure to separate the catheter from the clip assembly.