Patent RU-2417770-C2 (RU)
Title: Locking ligature for skin incision and/or corporeal tissue wound suture and method of uninterrupted skin incision and/or corporeal tissue wound suture
Inventor: KRIVOKORYTOV ANDREJ LEONIDOVICH
IPC: A61B17/06
Filed: 2009-02-13
Granted: 2011-05-10
Abstract: FIELD: medicine. 
     SUBSTANCE: group of inventions refers to surgery, and can be used for joint and union retention of edges of corporeal tissue wounds of both surgical, and accidental origin. A locking ligature is made of surgical grade materials and comprises three successive elements: a head end with a ligature body lock, a ligature body and a tail end. The ligature is made of a biologically degradable surgical grade material which contains antibacterial, biologically, chemically and physically active impurities, and the other substances having an effect on a wound process course. The head end begins the ligature and represents a bulge thereon. The head end has external, atraumatically rounded surfaces and borders and a through passage with the ligature body lock inside. The ligature body lock is designed to adjust the head end and body to release in a specific clinical situation. The ligature body lock does not inhibit the tail end and ligature body received and moving forward inside the passage of the head end up to locking of a portion of the ligature body in a required position. The ligature body is locked in the head end by means of reducing an opening of the passage of the head end. The ligature body is released in the head end by means of enlarging the opening of the passage of the head end. The passage of the head end and the ligature body lock do not inhibit the ligature body passing freely through the through passage of the head end. The ligature body is a straight extension of the head end, represents a piece of a core and has a surface for atraumatic passage of the ligature body through a corporeal tissue and unobstructed passage through the passage of the head end. The tail end is pointed and finishes the ligature body thereby providing desired passage of the tail end and ligature body through the sutured tissues and passage in the head end. For skin incision and/or corporal tissue wound suture, an uninterrupted suture is performed with using more than one locking ligature. The tail end and ligature body of the initial ligature are delivered at first through the edges of a corporeal tissue defect, then through the passage of the head end of the same locking ligature. A created loop is formed and fixed by fastening an initial ligature of the suture. Thereafter, an initial ligature body is delivered and fixed through the passage of the head end of the following ligature. Then, the second ligature body is used to execute a main portion of a suture path in space. After executing the desired suture path in space, the second ligature body is passed through the passage of the head end of the third identical locking ligature. The manipulations are repeated so many times as required, until completing the last element of the uninterrupted suture with the following head end of the locking ligature a free portion of which can be either cut off, or used for further surgical manipulations. 
     EFFECT: ligature and method provide uninterrupted skin incision and/or corporeal tissue wound suture, provide knot reliability, rupture strength and infection resistance. 
     13 cl, 2 ex, 35 dwg