curved needle 50 and a hook 122b continuing to this groove 122a thus the looper 122 catches the thread loop 138l as well as rotates in a counterclockwise direction seen from the upper parts in fig2 and fig2 so as to pass the thread loop to the shuttle 127 the numeral 139 is a guide fixed to the body 104 which is formed with a guiding groove 139a engaging the presser and an oblong groove 139b for inserting the needle the numeral 140 is an upper thread bobbin and 141 is a thread tension these members being provided on an upper cover 143 of the suturing part 103 the upper cover 143 is detachably attached to the body 104 and a lower cover 144 is also detachably attached to the body with screws actuation of the second embodiment constructed as mentioned above will be explained as in the first embodiment the dura maters are set to the presser before the suturing operation the pressers are appropriately selected among prepared ones being different in size and shape in accordance with suturings and two sheets of the dura maters are pressed with the pressers at the both sides and free ends of the presser are secured with forcepses an upper end of the presser 63 set as mentioned is as shown in fig3 kept in a guiding groove 139a of the body 104 and the suturing is started this operation is carried out by working a foot switch 150 and is stopped until one suturing is formed and the foot switch is worked secondly the suturing is performed by repeating 34 operating the foot.