Patent ID: 7125412
Filing Date: 2006-10-24
Classification: A61B,A61F

Abstract:
1. A stapler for intraluminal fixation of intravascular devices, substantially grafts, located inside blood vessels using minimally invasive surgery techniques, the stapler comprising: i) a hollow body, substantially of cylindrical shape, having a proximal end and distal end, the distal end have a holding handle extending therefrom at a certain angle and control lever, pivotally mounted thereon, and at the proximal end there are rigidly secured, coaxial with said hollow body and in succession to one another in direction to the free end of said stapler, a die and guiding head forming in combination the working head of said stapler; ii) a pressure rod disposed inside said hollow body, having a longitudinal axis, proximal end and distal end, said pressure rod is operatively connected by its distal end to said control lever, and its proximal end is capable of reciprocating inside said die and said head; iii) said die for locating fastener means shaped as a barrel, having a proximal end, distal end, substantially cylindrical generatrix and inner axial cavity, open on the side of said barrel distal end and terminating in a bottom at said barrel proximal end, the bottom has through, evenly arranged radial slots, and on its end face presented to the guiding head—recesses with grooves for locating fastener means, these recesses with grooves are coaxial with radial slots and provided with means for setting apart the ends of said fastener means, disposed along the axes of grooves, right up to the cylindrical generatrix of said die and having substantially V-shaped section, each said recess with groove being covered with an individual lid, shaped as an annular segment and rigidly connected to the end face of said die; iv) said guiding head having a substantially cylindrical generatrix, a flat or rounded free end, radial slots, evenly arranged in the head body and coming onto its generatrix, as well as outer bulge at the opposite end of said head, the head being mounted with its bulge right up to the individual lids on the end face of said die, radial slots of the guiding head being coaxial with radial slots of the die, and therein said proximal end of pressure rod is movably mounted, and the outer diameter of said cylindrical generatrix of the guiding head is less than the outer diameter of said bulge and said die by a double value of distance assuring the removal from the die a fastener means entirely extended in radial direction; v) a means for transmitting axial force from said pressure rod to said fastener means and for converting this axial force into radial forces applied to each of these fastener means, which is necessary for punching via said fastener means the wall of said intravascular device and surrounding wall of a blood vessel so, that the distal ends of the fastener means come in part outside the corresponding blood vessel, to form a rigid connection of said intravascular device to the blood vessel wall.