Patent ID: 7770776

Claim:
A rotatable stapling head of a surgical stapler comprising: a staple cartridge, a staple driver, an annular scalpel, a compression rod, a staple casing, and a rotating assembly; wherein said staple cartridge, staple driver, annular scalpel, compression rod, staple casing, and rotating assembly constitute a forward-moving and rotating mechanism; wherein said rotating assembly includes a rotating sleeve and a spiral track member; wherein said staple casing comprises a tubular casing with an inner step shaped cavity inside which is disposed a support tube; wherein the staple driver, which conforms to the shape of the inner wall of the staple casing, is disposed between the support tube and the inner wall of the staple casing; wherein a scalpel cavity is formed in front of the staple casing and the staple driver, which matches the annular scalpel; wherein the annular scalpel is sleeved outside the support tube and disposed inside the scalpel cavity; wherein the rotating sleeve has therein a concave-convex structure selected from the group consisting of flutes and bosses; wherein the spiral track member is disposed on the support tube inside the staple casing so as to match with the concave-convex structure of the rotating sleeve; wherein a front circular rim of the staple casing is connected with the staple cartridge and the front circular rim of the staple driver contacts with the staple cartridge; wherein the annular scalpel is connected with the staple driver and the support tube by means of the rotating sleeve; and wherein said annular scalpel rotates relative to the staple casing within said forward-moving and rotating mechanism, while said annular scalpel, said staple driver and said compression rod move axially.