Bone-stabilizing-type femoral head extractor

Abstract

The invention discloses a bone-stabilizing-type femoral head extractor. The extractor comprises an outer cylinder, a bone taking drill rod sleeved with the outer cylinder and a locking piece, a head is arranged at the front end of the outer cylinder, fixing teeth are arranged at the front end of the head, the front end of the bone taking drill rod is a self-tapping twist drill near end capable ofextending forwards out of the head of the outer cylinder when in use, the tail end of the bone taking drill rod extends backwards out of the rear end of the outer cylinder and is used for being controlled to rotate, and the locking piece is used for locking or unlocking the outer cylinder and the bone taking drill rod to form a transmission fit state or a free rotation state. The femoral head is stabilized and positioned through the outer cylinder, meanwhile, the outer cylinder serves as a channel to help the bone taking drill rod to directly enter the femoral head through a surgical incision,and the outer cylinder also has a guiding function and helps the bone taking drill rod to stably and accurately drill into a bone to be taken; and the outer cylinder is in transmission fit with the bone taking drill rod, the bone taking drill rod is driven to drive the outer cylinder and the femoral head to rotate, ligament connected to the femoral head can be broken easily, and the femoral headcan be taken out conveniently.

Description

technical field [0001] The invention relates to the technical field of orthopedics, in particular to a bone-stabilizing femoral head extractor. Background technique [0002] Artificial joint replacement is currently receiving satisfactory results in the treatment of femoral head necrosis, femoral neck fractures with obvious displacement, and old femoral neck fractures, which greatly reduces the disability rate caused by such diseases. During the operation, the femoral head is removed Is an important step in the surgical procedure, based on the anatomy of the hip joint. During the clinical operation, it is difficult to remove the femoral head, and it cannot be completely removed at one time (because the removal device cannot be accurately positioned). Undoubtedly, the operation time is wasted and the overall operation time is increased. Long operation time increases the risk of surgical complications to a certain extent. How to quickly and accurately remove the femoral head ...

AI Technical Summary

Problems solved by technology

During the clinical operation, it is difficult to remove the femoral head, and it cannot be removed completely at one time (because the removal device cannot be accurately positioned)

Undoubtedly, the operation time is wasted and the overall operation time is increased. Long operation time increases the risk of surgical complications to a certain extent. How to quickly and accurately remove the femoral head is a problem that needs to be solved in the current surgical technology, so a bone-stabilizing femoral head is needed. Bone extractor, through which the femoral head can be removed quickly and accurately

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