Device for fixing a femur in hip endoprosthetics

A technology for hip replacement and equipment, which is applied in the directions of surgery, fixator, operating table, etc., can solve the problems of laborious and expensive movement of the femoral support

Active Publication Date: 2015-01-21
MAQUET GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The solution disclosed in US 7 824 353 B2 (which moves the femoral support in the adjustment plane) is relatively expensive
It is therefore particularly labor-intensive to move the femoral support in the adjustment plane, for example by means of a crank, to actuate the axis of rotation in the adjustment plane.
Furthermore, moving the femoral bearing linearly in the adjustment plane is not always suitable for stabilizing the femur in the desired manner.

Method used

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  • Device for fixing a femur in hip endoprosthetics
  • Device for fixing a femur in hip endoprosthetics
  • Device for fixing a femur in hip endoprosthetics

Examples

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Embodiment Construction

[0038] figure 1is a side view showing a device 10 according to the invention as an example. The device 10 is used to support the femur, not shown, during surgery in minimally invasive hip replacement surgery. The device is mounted on an operating table 12 on which the patient to be operated on lies.

[0039] Apparatus 10 includes a femoral support 18 described in detail subsequently, a lever arm 20 comprising a strut 22 and a cantilever 24 . The boom 24 has a receptacle 26 in which the femoral support 18 is accommodated.

[0040] The device 10 also includes an adjustment device 28 mounted on the side of the operating table 12 for pivoting the lever arm 20 in a vertical adjustment plane. exist figure 1 Two deflected positions of the lever arm 20 are shown in , one of which is indicated by a dashed line. The adjustment plane (as in figure 1 In this adjustment plane, the lever arm 20 is deflected by means of the adjustment device 28 ) perpendicular to the lying surface 16 o...

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PUM

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Abstract

The invention relates to a device (10) for fixing a femur in hip endoprosthetics, comprising a femur support (18), which has a bent hook part (36) that forms a supporting rest for the femur to be fixed, in the region between the greater trochanter and the lesser trochanter, and which has a shaft (38) connected to the hook part (36), a lever arm (20), which has a column (22) and a cantilever (24) having a receiving portion (26) for attaching the shaft (38), an adjusting device (28) attached to an operating table (12), and a retainer (30), which can be coupled to the adjusting device (28) and to which the column (22) of the lever arm (20) can be attached. The adjusting device (28) has a drive (32) for moving the column (22) in an adjustment plane, which is perpendicular to the lying surface (16) of the operating table (12) and parallel to the longitudinal direction of the operating table. The adjusting device (28) also has an axis of rotation (34) perpendicular to the adjustment plane, about which axis of rotation the retainer (30) can be rotated in the adjustment plane by means of the drive (32) in order to pivot the column (22).

Description

technical field [0001] The invention relates to a device for the fixation of the femur during hip replacement surgery according to the preamble of claim 1 . Background technique [0002] During surgery in minimally invasive hip replacement surgery, the femoral head is separated and removed using the previous access. After the femoral head is separated, the remaining femur must be stabilized and fixed to prevent the thigh from sinking due to the leg's own weight. Furthermore, it must be ensured that the operating surgeon has a constant optimal access to the femur. For this, the femur must be raised slightly. [0003] The above measures are implemented in the prior art in the following manner. Consider first the support of the femur without the need for aids specifically set up for this purpose. In this case the surgeon or his assistant manually lifts the femur if necessary. [0004] As a technical aid, cushioning rollers, which are placed within the thigh to indirectly s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G13/10A61G13/12A61B17/88A61G13/00
CPCA61G2013/0081A61B17/88A61G13/101A61B17/8866A61G13/1245A61G13/1295A61B2017/00991A61G13/0081
Inventor T·克里克贝格M·布劳尔H·德尔
Owner MAQUET GMBH
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