초록 ▼

The present invention provides medical devices and methods for: suturing tissue by proximally drawing sutures through a tissue layer in the proximity of an aperture; suturing vascular tissue while maintaining adequate perfusion or hemostasis, or both; anastomosing a graft to an aperture in a vessel

The present invention provides medical devices and methods for: suturing tissue by proximally drawing sutures through a tissue layer in the proximity of an aperture; suturing vascular tissue while maintaining adequate perfusion or hemostasis, or both; anastomosing a graft to an aperture in a vessel wall while maintaining hemostasis at the anastomosis with physiological flow and/or pressure in the vessel lumen; punching and removing tissue to form an aperture in a vessel wall while maintaining hemostasis at the aperture with physiological flow and/or pressure in the vessel lumen; automatically and repeatably placing suture thread through vessel wall tissue surrounding an aperture in the vessel wall in a suture pattern that is useful for anastomosing a tubular graft to the aperture; and, deploying a suture with one end extending through the tissue that surrounds a punched aperture in a vessel wall and the opposite suture end extending radially through a tubular graft wall adjacent an open end of the graft, such that a vessel anastomosis may be rapidly and repeatably performed in a CABG procedure even while the vessel is under physiological flow.

대표청구항 ▼

[ What is claimed is:] [1.] A device for suturing tissue in the proximity of an aperture in a tissue layer, the device comprising:a shaft having a proximal end and a distal end;at least one needle carried near the distal end of the shaft and adapted to be placed through the aperture, the needle havi

[ What is claimed is:] [1.] A device for suturing tissue in the proximity of an aperture in a tissue layer, the device comprising:a shaft having a proximal end and a distal end;at least one needle carried near the distal end of the shaft and adapted to be placed through the aperture, the needle having a shank carried by the shaft and a tip disposed toward the proximal end of the shaft, wherein the needle has a first radially collapsed position that extends proximally along a needle carrying portion, and is adjustable to a second radially expanded position that extends proximally and outwardly from the needle carrying portion; anda suture having a first suture portion secured to the needle and a second suture portion extending toward the proximal end of the shaft, the first suture portion being extendible outwardly through the tissue adjacent the aperture by placing the needle through the aperture, proximally withdrawing the needle to thereby puncture the tissue adjacent the aperture with the needle tip, detaching the needle from the shaft, and advancing the needle and first suture portion through the tissue, wherein said first suture portion when extended outwardly through the tissue can be secured with a knot to the second suture portion external of the aperture without substantially obstructing or constricting the aperture.