Medical stapler

摘要

A medical device for delivering a staple formed from a shape memory material is disclosed. The staple includes a first tine and a second tine connected by a bridge. The staple may be disposed within the medical device in an open position. The medical device is configured to sequentially deliver the first tine and the second tine, respectively, to opposing body tissues. Upon warming up to a temperature at or above a transformation temperature of the shape memory material, the staple may assume a closed position, thus drawing together opposing body tissues and closing an incision.

主权项

1. A medical device, comprising:
an elongate shaft having a working lumen; and a staple disposed in an open position in the working lumen, the staple comprising a first tine and a second tine connected by a bridge portion, the staple further comprising a shape memory material and being configured to transition from the open position to a closed position at or above a transformation temperature of the shape memory material, an end of the first tine is oriented toward a distal end of the shaft and disposed distal to an end of the second tine in the open position, the end of the second tine is bent toward the end of the first tine so that the ends of the first tine and the second tine are oriented toward the distal end of the shaft and the ends of the first and second tines are positioned proximal to the distal end of the shaft in the open position for delivery to a treatment site.