Finger joint prosthesis structure
A finger joint and prosthesis technology, applied in the field of finger joint prosthesis structure, can solve the problems of muscle and tendon tissue involvement, failure to reach, dislocation, etc., so as to reduce postoperative complications, reduce the risk of rupture, and achieve reasonable design. Effect
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Embodiment 1
[0039] A finger joint prosthesis structure, including a proximal prosthesis 1, a joint part 2, a distal prosthesis 3, and a rotation shaft 4, and the proximal prosthesis 1 and the joint part 2 form a shaft fit connection through the rotation shaft 4 to achieve flexible joints Rotate to realize that the joint part 2 of the joint is connected with the distal prosthesis 1, the other end of the proximal prosthesis 1 is connected with the proximal expansion screw 5, and the other end of the distal prosthesis 3 is connected with the distal expansion screw 6; the proximal expansion screw 5 and the distal expansion screw 6 are respectively inserted into the medullary cavity at both ends of the joint, and the proximal expansion screw 5 and the distal expansion screw 6 prevent withdrawal.
[0040] The proximal prosthesis 1 comprises a proximal prosthesis joint 7 and a proximal prosthesis handle 8, the joint part 2 comprises a joint part head 9 and a joint part tail 10, and the distal pro...
Embodiment 2
[0042] A finger joint prosthesis structure, including a proximal prosthesis 1, a joint part 2, a distal prosthesis 3, and a rotation shaft 4, and the proximal prosthesis 1 and the joint part 2 form a shaft fit connection through the rotation shaft 4 to achieve flexible joints Rotate to realize that the joint part 2 of the joint is connected with the distal prosthesis 1, the other end of the proximal prosthesis 1 is connected with the proximal expansion screw 5, and the other end of the distal prosthesis 3 is connected with the distal expansion screw 6; the proximal expansion screw 5 and the distal expansion screw 6 are respectively inserted into the medullary cavity at both ends of the joint, and the proximal expansion screw 5 and the distal expansion screw 6 prevent withdrawal.
[0043] The proximal prosthesis 1 comprises a proximal prosthesis joint 7 and a proximal prosthesis handle 8, the joint part 2 comprises a joint part head 9 and a joint part tail 10, and the distal pro...
Embodiment 3
[0049] A finger joint prosthesis structure, including a proximal prosthesis 1, a joint part 2, a distal prosthesis 3, and a rotation shaft 4, and the proximal prosthesis 1 and the joint part 2 form a shaft fit connection through the rotation shaft 4 to achieve flexible joints Rotate to realize that the joint part 2 of the joint is connected with the distal prosthesis 1, the other end of the proximal prosthesis 1 is connected with the proximal expansion screw 5, and the other end of the distal prosthesis 3 is connected with the distal expansion screw 6; the proximal expansion screw 5 and the distal expansion screw 6 are respectively inserted into the medullary cavity at both ends of the joint, and the proximal expansion screw 5 and the distal expansion screw 6 prevent withdrawal.
[0050] The proximal prosthesis 1 comprises a proximal prosthesis joint 7 and a proximal prosthesis handle 8, the joint part 2 comprises a joint part head 9 and a joint part tail 10, and the distal pro...
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