The invention discloses an adjustable binding and fixing device for a mouse
depression model, and relates to the technical field of experimental animals. Comprising a containing
pipe, a conical head is arranged at one end of the containing
pipe, a plurality of ventilation holes are formed in the conical head, a longitudinal opening is formed in the
pipe wall of the containing pipe, one end of the longitudinal opening extends to the end, away from the conical head, of the containing pipe, and the other end of the longitudinal opening extends to one side of the conical head; the inner
diameter of the adjustable restraining piece is matched with the outer
diameter of the containing pipe, the adjustable restraining piece is detachably installed on the outer side of the containing pipe, the adjustable restraining piece is of a C-shaped structure, connecting pieces are integrally arranged at the two ends of the adjustable restraining piece, and adjusting parts are arranged on the connecting pieces. Through the cooperative design of the C-shaped adjustable restraining piece and the adjusting screw, continuous adjustment of the inner
diameter of the containing pipe is achieved, the device is suitable for laboratory mice of different body types, precise
adaptation of the mouse body types is achieved, and restraining effectiveness and safety are ensured.