Laser suturing of biological materials
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United States of America Patent
Stats
-
Mar 10, 1998
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Jun 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Methods and systems for endoscopic suturing of biological tissue are disclosed. Endoscopic instruments are described which serve to position a suture material at an anastomotic site and deliver laser radiation to the suture material to effect fusion. The suture material includes a structure adapted for positioning at an anastomotic site and has at least a portion of the structure formed by a photoreactive crosslinking agent, such that upon irradiation of the structure the crosslinking agent adheres to the biological material. In one embodiment, the suture material can also include a high tensile strength element which is coated with a laser activatable crosslinking agent or glue. Upon activation, the suture material creates a desired closure or joinder of the biological material and is left in place while the endoscope is advanced to another target site or removed.
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