Endoscopic stitching machine

摘要

An endoscopic stitching machine, including a housing for mounting the actuators for the stitch-forming tools (needle, gripper and pressure pad), and a housing shaft to house one or more devices for the transmission of the movements generated by the actuators to the stitch-forming tools, whereby the housing shaft (3) and the transmission devices (9, 12, 13) are divided into two shaft parts (14, 15) and lower and upper transmission devices (9a, 12a, 13a and 9b, 12b, 13b), in a plane perpendicular to the longitudinal direction thereof, detachably connected to each other by means of a corresponding coupling piece (26), whereby the coupling pieces (26) may be introduced into and positively housed within corresponding recesses (32, 33) of the lower and upper transmission means (9a, 12a, 13a and 9b, 12b, 13b), parallel to the section plane and running in the longitudinal direction of the transmission devices (9, 12, 13).

主权项

1. An endoscopic stitching machine comprising:
a housing for mounting drives for stitch-forming tools, said stitch-forming tools comprising needles, a gripper and pressure pads; a plurality of transmitting means for transmitting movements generated by the drives to said stitch-forming tools, said plurality of transmitting means comprising at least one thread-carrying needle and at least one gripper, said at least one gripper cooperating with said at least one thread-carrying needle, said at least one needle being movable in an upward and downward direction, said at least one gripper being mounted for movement such that said at least one gripper executes at least one oscillating movement per stitch-forming cycle; and an adjoining housing shaft accommodating said transmitting means, said housing being connected to said housing shaft and each of said transmitting means being divided within a plane, said plane extending perpendicular to a longitudinal direction of said housing shaft and a longitudinal direction of each of said transmitting means, wherein said housing shaft is divided into an upper shaft part and a lower shaft part and each of said transmitting means is divided into a lower transmission means and an upper transmitting means, each of said lower transmitting means being detachably connected to one of said upper transmitting means via a coupling piece, each of said lower transmitting means and each of said upper transmitting means having a recess, wherein a portion of said coupling piece is arranged in each said recess, wherein said coupling piece is positively locked with said upper transmitting means and said lower transmitting means in said longitudinal direction, wherein each said portion of said coupling piece is movable within said recess in a direction parallel to said plane, each said coupling piece having two shaped parts extending transversely to the longitudinal direction of at least one of said transmitting means, one of said shaped parts being inserted into said recess of said upper transmitting means, another one of said shaped parts being inserted into said recess of said lower transmitting means, each said recess having a shape corresponding to a shape of one of said shaped parts, said two shaped parts, said recess of said upper transmitting means and said recess of said lower transmitting means being arranged within a circular cross-sectional area of one of said transmitting means.