To provide a tissue reinforcing material for an automatic suturing device which can be easily and surely mounted on an automatic suturing device in which both ends of a cartridge are closed.SOLUTION: The tissue reinforcing material for an automatic suturing device consists of a flat bioabsorbable nonwoven fabric and has an insertion port in one of two opposed sides of the bioabsorbable nonwoven fabric and a protrusion on the other.SELECTED DRAWING: Figure 1【課題】カートリッジの両端が閉じた構造の自動縫合器に容易かつ確実に装着することができる自動縫合器用組織補強材を提供する。【解決手段】平面の生体吸収性不織布からなる自動縫合器用組織補強材であって、生体吸収性不織布の対向する１組の２辺のうち一方の辺に差し込み口を有し、もう一方の辺に突起を有する自動縫合器用組織補強材。【選択図】 図１
