Line-shaped paw-type patella external fixator

A line-shaped paw-type patella external fixator, comprising:

• a line-shaped main girder (1), a pressure regulating fastener (2), a pressure regulating nut (3), arc type auxiliary girder (4), first and second auxiliary fasteners (5), fixing needles (6), reinforcing nuts (7), fastening screws (8), a grub screw (8-1), a q-shaped fixing part (9), a b-shaped fixing part (10), a third auxiliary fastener (11), a splayed needle seat (12), auxiliary fixing needles (13) and a nut and bolt (14);
• the line-shaped main girder (1) has a circular cross section, both ends of the line-shaped main girder (1) are respectively provided with screw threads (1-1), and concave rail slots (1-2) are respectively provided on both ends of the line-shaped main girder (1);
• the pressure regulating fastener (2) and the pressure regulating nut (3) are provided on one end of the line-shaped main girder (1), the arc auxiliary girder (4) is provided in an auxiliary girder groove (2-2) of the pressure regulating fastener (2), the first and second auxiliary fasteners (5) are provided on both ends of the arc auxiliary girder (4), the fixing needles (6) are provided in a needle hole (5-2) in each of the first and second auxiliary fasteners (5);
• the q-shaped fixing part (9) is provided on the other end of the line-shaped main girder (1), and the b-shaped fixing part (10) is provided below the q-shaped fixing part (9), the fixing needles (6) are provided in a second needle hole (10-2) of the b-shaped fixing part (10);
• the third auxiliary fastener (11) is provided in the middle section of the line-shaped main girder (1), splayed needle seats (12) are arranged on both sides of the third auxiliary fastener (11), the auxiliary fixing needles (13) are provided in oval-shaped needle holes (12-3), the reinforcing nuts (7) are fixed on screw threads of the auxiliary fixing needles (13), the fixing needles (6) located below both ends of the line-shaped main girder (1) and the auxiliary fixing needles (13) hold against a cracked patella and secure the cracked patella.