Femoral head external fixation drilling support

Abstract

The invention discloses a femoral head external fixation drilling support. The drilling support comprises an outer fixed mount, a guide adjusting mechanism, a drill bit and a crossing rack, wherein the crossing rack is supported on the bearing surface outside the femoral head; the outer fixed mount is arranged on the crossing rack in a sliding mode; the guide adjusting mechanism is arranged on theouter fixed mount in a sliding mode; the drill bit is arranged on the guide adjusting mechanism; the drill bit is driven by the guide adjusting mechanism to be adjusted to a preset position and a preset angle on the outer fixed mount to form locking; the outer fixed mount is arranged on the crossing rack in a sliding mode, so that the position, relative to the surgical site, of the outer fixed mount can be adjusted conveniently; the outer fixed mount is locked with the crossing rack after being adjusted in place, and the stability of the outer fixed mount is maintained; and the guide adjusting mechanism has an effect of guiding and adjusting the drill bit, so that the drill bit is ensured at the optimized position and optimized angle, and can precisely drill to the locus part. The femoralhead external fixation drilling support also has the advantages of reliability in use, simplicity in operation and easiness in maintenance.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a femoral head extramedullary fixation drilling bracket. Background technique [0002] Femoral head necrosis is a common orthopedic disease, also known as avascular necrosis of the femoral head. After the onset, patients usually have symptoms such as pain, limp, joint stiffness, and limited hip joint function. Free development can gradually lead to femoral head cyst degeneration, bone collapse, and then form hip arthritis, seriously affecting the patient's work and quality of life. [0003] Necrosis of the femoral head requires interventional surgery in the early stage of collapse to preserve the femoral head to the maximum extent and avoid further collapse and damage. Bone grafting for femoral head necrosis is one of the treatment methods for femoral head hip-preserving surgery. It is suitable for early femoral head necrosis, especially for patients with small lesio...

AI Technical Summary

Problems solved by technology

Once part of the necrotic bone tissue is completely removed, it will directly affect the surgical effect

However, there is no reliable, accurate and easy-to-operate auxiliary tool for lesion removal, which realizes precise positioning of the drill bit and makes it possible to reach the lesion directly.

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