Staple cartridge assembly and surgical instrument

The invention discloses a nail cartridge assembly and a surgical instrument, the nail cartridge assembly comprises a nail cartridge main body, the nail cartridge main body is provided with a feed groove, the feed groove divides the nail cartridge main body into two parts, each part comprises a nail outlet surface, and the nail outlet surface is provided with two rows of nail cavities arranged along the lengthwise direction, namely a first row of nail cavities and a second row of nail cavities; the anastomosis nails are arranged in the nail cavities respectively, and nail crowns of the anastomosis nails are arranged in an arc shape; the nail cavities in the first row of nail cavities are arranged along a first arc line, and the nail cavities in the second row of nail cavities are arranged along a second arc line; the distance between the end point of the first arc line and the end point of the second arc line in the transverse direction is smaller than or equal to 0.5 mm, and the radius of the first arc line a