Suture needle guide tube and tissue suturing device technical field

A tissue suturing device, comprising:

• a sleeve tube main body (8), for being inserted into a wound to be sutured, the sleeve tube main body (8) comprising a proximal handling end, a distal insertion end, and an axial channel between the proximal handling end and the distal insertion end, and the sleeve tube main body (8) comprising a plurality of suture needle paths located in different positions for guiding a suture needle to pass therethrough;
• a handling member (9), provided at the proximal handling end and comprising a transmitting member (10) located in the axial channel;
• and
• a suture arrangement member (11), provided at the distal insertion end and for positioning a suture;
• wherein the handling member (9) is configured to drive, by means of the transmitting member (10), the suture arrangement member (11) to switch between a folded position in which the distal insertion end and the suture arrangement member (11) are allowed to pass through the wound to be sutured of parietal tissue of an inner cavity and an unfolded position in which the suture is extended to and arranged on two sides of the wound to be sutured in the inner cavity;
• wherein the suture needle path is for guiding the suture needle to pass through the parietal tissue to enter the inner cavity and for allowing the suture needle to exit with the suture.