Skeleton fixation method for medical use, and its fixation nails
A technology of bone fixation and nail fixation, which is applied in the direction of fixators, internal fixators, and internal bone synthesis. It can solve the problems of low screw firmness, easy lateral compression of bones, and inability to use screws, etc., to achieve strong fastening force, Good firmness, not easy to shift
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Embodiment 1
[0059] Such as figure 1 As shown, the operation process is shown by the arrow in the figure, the fractured bones A and C of the method of the present embodiment are connected by the fixing plate B and 4 fixing nails 10, as figure 1 shown in the first figure. Firstly, the fractured bones A and C are initially positioned at fixed positions, and connecting holes 12 corresponding to the fixing holes 11 on the fixing plate B are respectively opened on both sides of the connecting seam of the bones A and C, and the connecting holes 12 can pass through laser opening, combining figure 1 shown in the first and second figures. Then, pass the end of the fixing nail 10 through the fixing hole 11 of the fixing plate B and insert it into the connection hole 12 of the bones A and C, and the nail cap at the front end of the fixing nail 10 is stuck on the outside of the fixing plate B, as shown in the second figure Show. Apply pulling force to the core of the fixing nail 10 to deform the e...
Embodiment 2
[0061] The method of the present embodiment is to directly connect the fractured bones A and C through the fixation nail 10, and its fixation process is as follows: figure 2 indicated by the arrow. Firstly, the broken bones A and C are preliminarily positioned in a fixed position, and a connecting hole 12 is opened on the bone C, and the connecting hole 12 runs through the connecting seam to another piece of bone A, as shown in the first figure. Then, the end of the fixing nail 10 is passed through the connecting hole 12 through one of the bones C to the other bone A, and the nail cap at the front end of the fixing nail 10 is stuck on the outside of the bone C. After the fixing nail 10 is installed, a pushing force is applied to its core, as shown in the second figure. The core body deforms the end of the fixing nail 10, cooperates with the nail cap to connect the two bones A and C, and then pulls out the core body to complete the fixation of the bones A and C, as shown in t...
Embodiment 3
[0068] This embodiment is a further improvement on the structure of embodiment 1, as Figure 5A As shown, the improved structure is that the end of the nail body 1 is processed to be composed of four separate expansion sheets 8 . When a pulling force is applied to the core body 4, since the end of the nail body 1 is in the structure of a separate expansion piece 8, it is easier to deform when it is squeezed by the expansion head 5. The fixation nail in this embodiment is made of titanium-niobium metal material, and is suitable for operations requiring high fixation force. Due to the need for high fixing force, in order to be suitable for the structure of small-sized fixing nails, the material strength of the fixing nails can only be improved so that it is not easily deformed. Therefore, the end of the nail body 1 is processed into an expansion sheet 8 structure, which is conducive to the deformation of the end of the nail body 1, and the strength of the main part of the nail ...
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