| 主权项 |
1. A surgical stapling device for joining tissue portions, comprising:
a handle assembly; a tubular body portion supported on a distal end of the handle assembly, the tubular body portion having a staple cartridge assembly containing a plurality of surgical staples in an annular array, and an elongate member extending axially therefrom and defining a distal surface, the staple cartridge assembly defining an inner annular edge, wherein a gap is defined between the inner annular edge of the staple cartridge assembly and the elongate member; an anvil assembly at a distal end of the surgical stapling device, the anvil assembly having a shaft for removably connecting the anvil assembly to the tubular body portion, the anvil assembly and tubular body portion being juxtaposed with respect to one another along the shaft and arranged so as to be approximated with respect to one another; a support member extending from the tubular body portion towards the anvil assembly, the support member having a proximal end extending radially outward from the elongate member of the tubular body and a distal end extending distally from the proximal end of the support member, wherein the distal end of the support member is radially located in the gap between the inner annular edge of the staple cartridge assembly and the elongate member, and wherein the distal end of the support member is coplanar with and does not extend beyond a tissue contacting surface, wherein the tissue contacting surface is defined by the staple cartridge assembly; and a buttress material supported by the support member and removably attached thereto, wherein the buttress material is disposed between the anvil assembly and the staple cartridge assembly, and wherein the buttress material overlays the annular array of surgical staples and extends radially inward of the distal end of the support member such that the distal end of the support member is entirely overlain by the buttress material. |
