主权项 |
1. A method for attaching a sheet-like implant to a target tissue, comprising the steps of:
providing a staple push rod carrying a staple, the staple comprising a first arm having a proximal end and a distal end, and a second arm having a proximal end and a distal end with a bridge extending from the proximal end of the first arm to the proximal end of the second arm, a first fluke of the staple having a proximal end abutting the distal end of the first arm, and a second fluke of the staple having a proximal end abutting the distal end of the second arm; the staple push rod of the device including a shaft, a first stake and a second stake, each stake having a distal portion and a proximal portion, a proximal end of the proximal portion of each stake being fixed to a distal end of the shaft, the distal portion of the first stake extending into a first passage defined by the first fluke, and the distal portion of the second stake extending into a second passage defined by the second fluke, the stakes being biased to assume a bow-like shape such that an intermediate portion of the staple extends tautly between the first stake and the second stake; depressing the target tissue to form a depression therein; advancing the first fluke of the staple into tissue at a first side of the depression; and advancing the second fluke of the staple into tissue at a second side of the depression. |