Patent ID: 6068636
Filing Date: 2000-05-30
Classification: A61B

Abstract:
An intra-intestinal bypass gun comprising:a tube body having a first end and a second end;a gun head unit coupled to the first end of said tube body, said bun head unit comprising a cylindrical base, a hollow guide rod moved in said cylindrical base, a hollow anastomosis rod having a head portion and a tail portion connected to one end of said guide rod, and a push rod fastened to said cylindrical base on the inside and suspended inside the head portion of said hollow anastomosis rod; andan operation unit, said operation unit comprising a rotary member coupled to the second end of said tube body, a hollow screw cap coupled between said rotary member and the second end of said tube body, a movable shaft coupled to said rotary member and suspended in said tube body and moved axially up and down in said tube body upon rotary motion of said rotary member, and a quick-release connector connected to one end of said movable shaft remote from said rotary member to secure said gun head unit to said movable shaft;wherein when said rotary member is rotated in one direction, said gun head unit is moved downwards with said movable shaft relative to said push rod, thereby causing the head portion of said hollow anastomosis rod to be stretched open by said push rod; when said rotary member is rotated in the reversed direction, said gun head unit is moved upwards with said movable shaft, thereby causing the head portion of said hollow anastomosis rod to be released from said push rod,wherein said guide rod comprises an annular groove around the periphery of an endpiece at one end thereof for coupling to said quick-release connector, and said quick-release connector has a plurality of steel balls for engaging into the annular groove at the endpiece of said guide rod to secure said guide rod to said operation unit, andwherein the base of said gun head unit comprises an anastomosis ring seat, which supports an anastomosis ring.