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An analysis device and method based on a femur model

An analysis device and model technology, applied in the field of medical equipment, can solve the problems that the effect needs to be further determined, and there are not many reports

Active Publication Date: 2021-03-16
FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] 3. Other treatment methods: such as electrical stimulation therapy, bloodletting therapy, hyperbaric oxygen therapy, etc., there are not many reports, and the effect needs to be further determined
This is not only a great test of the doctor's ability in all aspects, but even experienced doctors may inevitably have certain defects in the surgical plan due to miscalculation.

Method used

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  • An analysis device and method based on a femur model
  • An analysis device and method based on a femur model

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Embodiment 1

[0045] This embodiment discloses an analysis device based on a femoral model. The analysis device divides the femoral model into a first segment with a femoral head model when at least two medical images of the femoral head that are different from each other are fused into a femoral model. and the second segment with the acetabular model, so that the relative positional relationship between the femoral head model and the acetabular model can be analyzed when at least one relative angle between the first segment and the second segment is changed.

[0046] Medical image registration refers to seeking one or a series of spatial transformations for a medical image to make it spatially consistent with the corresponding points on another medical image. This consistency means that the same anatomical point on the human body has the same spatial position in the two matching images. The result of registration should match all anatomical points, or at least all diagnostic and surgical p...

Embodiment 2

[0071] This embodiment provides an analysis method based on a femur model. This method may be a supplement to the execution steps of the corresponding modules in Embodiment 1.

[0072] Preferably, the method includes:

[0073] S1: On the surface of the femoral head model of the femoral model, distinguish the non-featured surface and the characteristic surface affected by necrotic tissue.

[0074] S2: Intercept the femoral model displayed on the display module 500 to divide the femoral model into a first segment with a femoral head and a second segment without a femoral head.

[0075] S3: Construct at least one of a rotation axis for the first segment to rotate relative to the second segment and an inversion axis for inversion with respect to the second segment.

[0076] S4: Control the movement of the first segment displayed on the display device around at least one of the rotation axis and the flip axis, so that the characteristic surface and the corresponding flip angle ar...

Embodiment 3

[0094] This embodiment is a further supplement to Embodiments 1 and 2.

[0095] Preferably, the axis of rotation is an axis parallel or approximately parallel to the axis of the femoral neck. Ideally, the axis of rotation is parallel to the axis of the femoral neck. However, in the actual calculation process, the calculated rotation axis may have a certain deviation from the axis of the femoral neck and be in a state roughly parallel to the axis of the femoral neck. Preferably, the axis of rotation substantially parallel to the axis of the femoral neck may mean that the angle deviation between the rotation axis and the axis of the femoral neck is within 5°, especially preferably within 2°. When the first segment rotates about the axis of rotation, the first segment rotates about the axis of rotation where it is intercepted. At this time, the included angle between the first section and the second section does not change or substantially does not change. The inversion axis i...

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Abstract

The invention relates to an analysis method based on a femoral model. The analysis method comprises the following steps: distinguishing a non-characteristic surface and a characteristic surface influenced by necrotic tissues on the surface of a femoral head model of a merged femoral model; intercepting the femoral model displayed on a display device to divide the femoral model into a first sectionwith the femoral head and a second section without the femoral head; constructing at least one of a rotating shaft for rotating the first section relative to the second section and an overturning shaft for overturning the first section relative to the second section; and controlling movement of the first section displayed on the display device about at least one of the axis of rotation and the tilt axis by observing a relative position of the characteristic surface with the acetabulum when the first section is moved to the respective angle of rotation and / or the respective tilt angle. The invention further discloses a device for executing the method.

Description

technical field [0001] The invention relates to the field of medical appliances, in particular to an analysis device and method based on a femur model. Background technique [0002] Necrosis of the femoral head refers to the ischemia of the femoral head due to various reasons, that is, due to the interruption or substantial reduction of blood supply, local blood supply disorder is caused, resulting in avascular necrosis and collapse of bone cells, a serious complication. It is further divided into traumatic femoral head necrosis and non-traumatic femoral head necrosis. Traumatic femoral head necrosis is mostly caused by a fracture at the femoral neck, which causes the blood supply of the femoral head to be interrupted. Even if the fracture heals, the femoral head bone ischemia takes longer , can also lead to bone necrosis and collapse. Common causes of non-traumatic femoral head necrosis include: excessive use of hormones, long-term alcohol abuse, etc., which lead to change...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/10
CPCA61B34/10A61B2034/105
Inventor 程徽罗殿中张洪谢智衡明文华黄育瀑
Owner FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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