Four limb external fixing support implanted rivet navigation device

• Main Authors: WANG CHANGGUI, LAN JUN, WANG JIWEI, YAN LIANHE, ZOU GUANGYI, LIANG WEI, XU XIANGDONG
• Format: Patent
• Language: English
• Published: 06.05.2015
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The utility model provides a four limb external fixing support implanted rivet navigation device. The four limb external fixing support implanted rivet navigation device comprises an upper tong arm and a lower tong arm. A first hinge shaft provided with a through hole in the center is fixed to the upper tong arm. A second hinge shaft provided with a through hole in the center and matched with the first hinge shaft is fixed to the lower tong arm, a rivet is installed on the first hinge shaft and the second hinge shaft, a rotary rod is installed in a center hole of the rivet, a guide sleeve is fixed to one end of the rotary rod, and a limiting block larger than the center hole of the rivet is fixed to the other end of the rotary rod. An included angle is formed between a second straight rod and a fourth straight rod, a clamping region is formed between a first arc-shaped portion and a second arc-shaped portion, an arc-shaped rack connected with the second straight rod in the length direction of the second straight rod in a sliding mode is arranged on the second straight rod, an arc-shaped hole is formed in the fourth straight rod, a set of limiting teeth are fixed to the side face of the arc-shaped hole, tooth-to-tooth angles of the arc-shaped rack are downward, tooth-to-tooth angles of the limiting teeth are upward, and a reset spring is fixed to the arc-shaped rack. The device is ingenious and reasonable in structural design and worthy of application and popularization.