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A device for suturing a vascular puncture site includes a shaft having a distal end terminating in a pair of resilient prongs, each of which releasably carries a suture anchor attached to one end of a suture. The shaft is installed within a hollow tube for longitudinal translation therein between fi

A device for suturing a vascular puncture site includes a shaft having a distal end terminating in a pair of resilient prongs, each of which releasably carries a suture anchor attached to one end of a suture. The shaft is installed within a hollow tube for longitudinal translation therein between first and second positions. The tube has a distal end portion and an opening spaced proximally therefrom. When the shaft is in its first position, the prongs are radially closed in the distal end portion. When the shaft is in its second position, the prongs expand radially to an open position through the opening. The proximal end of the shaft is connected to an actuation member in a fitting that is removably connectable to the proximal end of a sheath. The distal end of the tube is introduced into the puncture site through the sheath, with the shaft in its first position. The sheath is partially withdrawn, leaving the distal end of the tube inside the vessel. The shaft is moved to its second position, whereupon the prongs expand to their open position, thus positioning the suture anchors for penetration of the vascular wall tissue by manipulation of the shaft and/or the tube. The shaft is moved back to its first position to retract the prongs back into the tube, leaving the suture anchors secured to the vascular wall tissue. The tube is withdrawn, leaving the sutures trailing from the anchors so as to be secured together.

대표청구항 ▼

[ What is claimed is:] [1.] A percutaneous suturing device for suturing a puncture site in the tissue of a bodily lumen, the device comprising:a hollow tube having a distal end portion dimensioned to enter the lumen through the puncture site, and an opening located proximally from the distal end por

[ What is claimed is:] [1.] A percutaneous suturing device for suturing a puncture site in the tissue of a bodily lumen, the device comprising:a hollow tube having a distal end portion dimensioned to enter the lumen through the puncture site, and an opening located proximally from the distal end portion;a shaft having a distal end portion terminating in a resilient prong, the shaft being disposed within the tube for longitudinal translation therein between a first position in which the prong is retained in a radially closed position by the distal end portion of the tube, and a second position in which the prong is resiliently expanded radially outwardly to an open position through the opening;a suture anchor releasably retained on the prong and configured for the penetration of the lumen tissue adjacent the puncture site; ength of suture attached to the suture anchor; andan actuation member operably connected to the shaft, the actuation member being actuable to move the shaft from the first position to the second position;whereby the movement of the prong to the open position in response to the movement of the shaft from the first position to the second position, when the distal end portion of the tube is entered into the vessel, positions the suture anchor to penetrate the lumen tissue adjacent the puncture site, and whereby the subsequent movement of the shaft from the second position to the first position after the suture anchor has penetrated the lumen tissue releases the prong from the suture anchor and contracts the prong radially into the closed position at least partially within the distal end portion of the tube, thereby leaving the suture anchor secured to the lumen tissue with the suture attached to the suture anchor in a position to be secured so as to close the puncture site.