Tissue suturing device

A tissue suturing device, comprising:

• a body (1), comprising a guide segment (4) at a proximal end for extending into a wound to be sutured (3) and a tube segment (6) at a distal end, wherein the guide segment (4) is provided with a suture needle channel, and the tube segment (6) is provided therein with an accommodating cavity (7) communicated with the suture needle channel;
• a plurality of suture needles (8), each of which comprising a main needle segment (9) and a puncture needle segment (10) connected with and spaced apart from the main needle segment (9), wherein two of the suture needles are used as a group of suture needles to connect a suture thread releasably between the puncture needle segments (10) of the two suture needles, the main needle segments (9) of the plurality of the suture needles (8) [can] are configured to be arranged in the suture needle channel, and the puncture needle segments (10) are configured to carry the suture thread and be located in the accommodating cavity (7);
• wherein each of the suture needles (8) is configured to move toward the proximal end and the distal end along the suture needle channel such that the puncture needle segment (10) is configured to return to the accommodating cavity (7) alone after passing with the suture thread through a tissue wall (5).