US Patent 4,493,323
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
The device of the present invention comprises an elongated tube which is adapted to be inserted into the body so that its internal end is positioned adjacent the tissue which is to be sutured. A plunger is sized to slide within the tube and includes at one end a grasping mechanism for releaseably grasping a pair of needles in spaced-apart relation to one another. The plunger is fitted within the tube and the needles are forced outwardly through the lower end of the tube so that they penetrate and extend through the tissue to be sutured. The needles are forced through the tissue to be sutured and are forced outwardly through the skin layer of the patient so that they can be grasped and pulled from the releaseable grasping mechanism of the plunger.
Albright, John P.; Martin, Robert K.; and Dyson, John A. Suturing device and method for using same. US Patent 4,493,323 filed December 13, 1982 and issued January 15, 1985. https://ir.uiowa.edu/patents/39