second embodiment of the present invention which is suited for the anastomotic stapling of a tubular vessel having only one distal end the other end having already been anastomotically stapled referring now to fig1 19 with like numbers referencing like elements there is shown anastomotic stapler 400 having handle 402 with elongated vessel rod 404 and elongated driver rod 406 mounted perpendicularly to handle face 408 and parallel to each other both being of approximately the same length vessel rod 404 has a centrally mounted generally circular anvil 410 vessel rod 404 has a circumference sufficient to coaxially accommodate a tubular vessel not shown to be stapled to the aorta driver rod 406 having threaded end 412 and handle 414 extends through bore 416 of handle 402 stapler 400 also comprises staple cartridge 418 enlarged in fig1 for purposes of describing its detail referring then to fig1 there is shown the staple cartridge of fig1 in its open position having top and bottom units 420 and 422 respectively units 420 and 422 are engaged at one side by hinge 424 which allows cartridge 418 to be opened and closed staple cartridge 418 has two parallel bores 426 and 428 with inner circumferences sufficient to coaxially accommodate vessel rod 404 with a coaxially accommodated vein not shown and driver rod 406 respectively staple delivery end 430 extends from staple cartridge 418 along the axis of bore 426 to accommodate the everted end of a vein to be stapled bore 428 is internally threaded to be threadedly engagable with driver rod end 412 for a proper fit between units 420 and 422 a detent recess pair is provided having detent 432 extending from inner surface 434 of top unit 420 which mates with recess 436.