Apparatus for taking out caput femoris

A femoral head and instrument technology, which is applied in the field of femoral head extraction instruments, can solve the problems of rotation of the femoral head and difficult to enter, and achieves the effects of increasing lubricating effect, facilitating operation and preventing infection

Inactive Publication Date: 2019-03-19
青岛山大齐鲁医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a femoral head extraction device, which solves the problem that the tools currently used are all a T-shaped handle, and the front end is a conical screw, w

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  • Apparatus for taking out caput femoris
  • Apparatus for taking out caput femoris
  • Apparatus for taking out caput femoris

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-3 , the embodiment of the present invention provides a technical solution: a femoral head removal instrument, including a movable plate 1, a threaded rod 2, a sleeve 3 and a support rod 6, the lower part of the movable plate 1 is provided with a threaded rod 2, and the threaded The rod 2 is fixedly connected with the movable plate 1 by bolts, the lower part of the threaded rod 2 is provided with a sleeve 3, and the middle part of the sleev...

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Abstract

The invention discloses an apparatus for taking out the caput femoris. The apparatus comprises a movable plate, a threaded rod, a sleeve and a supporting rod, the threaded rod is arranged on the lowerportion of the movable plate, and the sleeve is arranged on the lower portion of the threaded rod; a through hole is further formed in the middle of the sleeve, an inner thread is arranged in the through hole, and an outer thread is arranged in the surface of the threaded rod; the threaded rod is connected with the thread of the through hole through the outer thread, a connecting rod is arrangedon the outer potion of the sleeve and fixedly connected with the sleeve through a bolt, and a movable shaft is arranged on the lower portion of the connecting rod; a supporting rod is arranged on thelower portion of the movable shaft and rotatably connected with the connecting rod through the movable shaft, and a pointed end is arranged on the lower portion of the supporting rod; according to theapparatus for taking out the caput femoris, the movable plate is rotated to screw a conehead of the bottom of the threaded rod into the bone through the outer thread, three supporting rods are arranged on the outer portion of the sleeve, after three-point fixing, the caput femoris can be prevented from rotating through pressing and screwing, and the conehead can conveniently enter into the caputfemoris to take out the caput femoris.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a femoral head extraction instrument. Background technique [0002] Hip replacement is a reliable and repeatable operation to relieve joint pain, restore joint function, and correct joint deformity. It is especially suitable for elderly patients with femoral neck fractures. The current treatment methods for femoral neck fractures include the following: conservative treatment, Closed or open reduction and internal fixation, hip replacement, each treatment has advantages and disadvantages. Conservative treatment is only suitable for some patients with serious medical complications who cannot be operated. Most patients with conservative treatment died of hypostatic pneumonia, decubitus ulcer, urinary tract infection and thrombosis caused by long-term bed rest. For non-displaced femoral neck For fractures, the secondary displacement rate after conservative treatment is a...

Claims

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Application Information

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IPC IPC(8): A61B17/16
CPCA61B17/1668A61B2017/564
Inventor 林均馨刘玉江
Owner 青岛山大齐鲁医院
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