Hemostatic clip

A hemostatic clip, comprising:

• a traction device comprising a traction mechanism and a separation mechanism, a distal end of the traction mechanism defining an inner bore, the separation mechanism disposed outside of a distal end of the inner bore;
• a clamping device comprising a constricting sleeve and a clip head assembly, the constricting sleeve provided thereon with a first locking member, the clip head assembly partially disposed within the constricting sleeve, the clip head assembly comprising a clip arm and an engagement member, the clip arm disposed on the engagement member, a proximal end of the clip arm provided with a second locking member for connection with the first locking member, wherein a proximal end of the engagement member is inserted in the inner bore and forms an interference fit with the inner bore, and wherein the separation mechanism prevents the second locking member from being connected to the first locking member, thereby allowing the traction mechanism to drive, under the action of an external force, the clip head assembly to move along an axis of the constricting sleeve, thereby switching the clip head assembly between a closed configuration and an opened configuration;
• and
• a first limiting member for defining a maximum distance that the clip head assembly is movable toward a proximal end of the constricting sleeve,
• wherein the hemostatic clip is configured so that, in the closed configuration of the clip head assembly, when the first limiting member prevents further movement of the clip head assembly toward the proximal end of the constricting sleeve and when a pulling force greater than a first predetermined value is applied to the traction mechanism, the proximal end of the engagement member is disengaged from the inner bore, and the separation mechanism does not confine the proximal end of the clip arm any longer, allowing the second locking member to be connected to the first locking member,
• wherein the hemostatic clip further comprises an elastic connecting member disposed between the traction device and the clamping device, the elastic connecting member comprising a base portion and a shaft portion, the shaft portion extending along the axis of the constricting sleeve, a distal end of the shaft portion defining a bent fin bent at an angle of 90°-120°, wherein the bent fin is configured to radially pass through a first connecting slot in the constricting sleeve and deform under a pulling force greater than a second predetermined value to allow separation of the traction device from the clamping device without fracture.