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Osteotomy guide plate assembly

A guide plate and osteotomy technology, applied in the field of medical equipment, can solve problems such as high risk, difficulty in ensuring accuracy and repeatability, and achieve the effect of reducing dependence

Pending Publication Date: 2017-04-26
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide an osteotomy guide plate assembly to solve the problem in the prior art that Ganz osteotomy is mainly operated by the doctor's experience, the accuracy and repeatability are difficult to guarantee and the risk is relatively high

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the osteotomy guide plate 10 includes: a lateral osteotomy guide plate 12 and a pubic osteotomy guide plate 13, the lateral osteotomy guide plate 12 and the pubic osteotomy guide plate 13 are all used to be installed on the first osteotomy surface of the osteotomy to be cut, the first The osteotomy surface is the outer surface of the pelvis. The lateral osteotomy guide plate 12 has a plane on the guide plate and a lower plane on the guide plate. Good fit and unique position to the pelvis.

[0045] Optionally, as in figure 2 and image 3 As shown, the lateral osteotomy guide plate 12 is a plate-shaped body that matches the first preset moving track, and the lateral osteotomy guide plate 12 forms a concave plate body with one side opening, and the lateral osteotomy guide plate 12 is arranged around the acetabulum. The groove 11 is opened in the outer osteotomy guide plate 12 along the first preset moving track.

[0046] The lateral osteotom...

Embodiment 2

[0049] In addition to cutting the acetabulum from the lateral side of the pelvis, the acetabulum can also be cut from the medial side of the pelvis. Optionally, as in Figure 4 and Figure 5 As shown, the osteotomy guide 10 includes: a first inner osteotomy guide 14, a second inner osteotomy guide 15, a third inner osteotomy guide 16 and a fourth inner osteotomy guide 17, the first inner osteotomy guide 14, the second inner osteotomy guide Two inner osteotomy guide plates 15, the third inner osteotomy guide plate 16 and the fourth inner osteotomy guide plate 17 are used to be installed on the second osteotomy surface of the bone to be cut, that is, installed on the inner side of the pelvis; The bone guide plate 14, the second inner osteotomy guide plate 15 and the third inner osteotomy guide plate 16 are used to guide and limit the pendulum saw to move along the first preset movement track around the acetabulum, and the fourth inner osteotomy guide plate 17 is used to guide a...

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Abstract

The invention provides an osteotomy guide plate assembly, comprising an osteotomy guide plate used to be mounted on the first preset position of a to-be-cut bone. The osteotomy guide plate is provided with a sawing channel used to guide and limit moving track of an oscillating saw, so that the oscillating saw moves in the sawing channel to cut the preset position of the to-be-cut bone. Using the osteotomy guide plate assembly of the technical scheme, through arranging the osteotomy guide plate, the osteotomy guide plate is arranged on the first preset position of the to-be-cut bone. The osteotomy guide plate is provided with the sawing channel used to guide and limit moving track of the oscillating saw, so that the oscillating saw moves in the sawing channel to cut the preset position of the to-be-cut bone. In a Ganz osteotomy, the osteotomy guide plate assembly can accurately position an osteotomy track, reduces degree of dependency on experience of a doctor, so that an operation process is standardized, and is accurate and repeatable, and problems in the prior art that a Ganz osteotomy mainly relays on experience of a doctor, and that precision and repeatability are hard to guarantee and risk is high are solved.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to an osteotomy guide plate assembly. Background technique [0002] Ganz osteotomy is a periacetabular osteotomy pioneered in 1983 by Dr. Ganz of the Bern Hospital in Switzerland. Ganz osteotomy changes the direction of acetabular coverage and increases the coverage of the hip joint on the femoral head, which greatly delays or even avoids artificial joint replacement in young patients with acetabular dysplasia. [0003] Since the pelvis is composed of cancellous bone that is prone to bleeding, it deeply surrounds and protects various organs of the human body. The acetabular part of the pelvis, which is composed of the ilium, pubis and ischium, is located deep in the pelvis, surrounded by the most abundant blood vessels and important femoral nerves, obturator nerves and sciatic nerves of the lower limbs. [0004] The most dangerous step of Ganz osteotomy is that among the acetabula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/15A61B17/56
CPCA61B17/15A61B17/56A61B2017/564
Inventor 殷庆丰许奎雪
Owner BEIJING AKEC MEDICAL
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