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Intelligent processing device suitable for making defects of various shapes and of wall thicknesses

A technology of various shapes and intelligent processing, applied in medical science, veterinary instruments, veterinary surgery, etc., can solve problems such as hemorrhage, damaged blood vessels, and inability to guarantee the ruler

Active Publication Date: 2016-09-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the real situation is that the shape that needs to be repaired after trauma is not necessarily circular. It may be a triangle, a polygon, or a complex shape. At the same time, the idea of ​​bone repair is to perform CT on the defect position Scan to obtain its three-dimensional structure, and then manufacture the corresponding structure for filling and repairing, which makes the shape of the structure no longer single. In order to be closer to the real situation and better reflect the repair effect of the material, it is necessary to study the bone repair of complex structures. With the development of manufacturing technology, structures with very complex shapes can be manufactured based on 3D printing technology, which solves the problem of material manufacturing, but the corresponding defect manufacturing tools are still traditional punching devices, and there is no new equipment to manufacture them. For traumatized people, the defects already exist and do not need to be artificially manufactured, but for scientific research workers, for experiments, it is necessary to artificially create defects. Although defects can be manufactured with a hand-held grinder and a drill, there is Some problems, such as manual operation, may penetrate the skull during manufacturing, because the thickness of the skull wall of different animals is different, and the thickness of the skull wall of the same animal is also different, and the meninges and brain tissue are underneath the skull If the depth is not well controlled, the brain tissue under the skull or the blood vessels on the brain tissue may be destroyed, causing massive bleeding, which greatly increases the chance of animal death during the defect manufacturing process; Defects with complex shapes cannot be done without certain experience and technology, because the consistency of size and shape with the design target cannot be guaranteed. At the same time, as an experiment, many repeated groups are needed, and manual operation cannot guarantee the defect made every time. The shape and size are the same. Therefore, in order to solve this problem, it is necessary to develop a device that can automatically complete the manufacture of complex-shaped defects on the skull according to requirements, and the defects are repeatable without causing animal death

Method used

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  • Intelligent processing device suitable for making defects of various shapes and of wall thicknesses
  • Intelligent processing device suitable for making defects of various shapes and of wall thicknesses
  • Intelligent processing device suitable for making defects of various shapes and of wall thicknesses

Examples

Experimental program
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Effect test

Embodiment 1

[0100] like Figure 7 As shown, taking the manufacture of four hexagonal defect structures on the rabbit calvaria as an example, the manufacturing method suitable for various shapes and wall thickness defects of the device of the present invention is illustrated as follows:

[0101] 1. Take a rabbit with a weight between 3 and 3.6kg, inject a certain dose of general anesthesia reagent (sodium pentobarbital) into the rabbit’s ear vein to perform general anesthesia on the rabbit, and then place the rabbit on the calvaria. After shaving, put the rabbit on the operating table, disinfect and sterilize the shaved area with povidone iodine, then spread a hole towel, and inject a small amount of local anesthetic reagent (lidocaine) on the exposed area , use surgical instruments to incise the skin to expose the position of the calvaria to be punched;

[0102] 2. Install the blade that has been sterilized in advance on the device of the present invention, perform iodophor disinfection ...

Embodiment 2

[0111] Taking the manufacture of three defect structures of different shapes (hexagonal, quadrangular, and triangular) on the rabbit calvaria as an example, the manufacturing method of the device of the present invention for processing multiple defect structures of different shapes and sizes on the same animal is illustrated. :

[0112] First manufacture a hexagonal defect structure, and steps 1 to 6 are the same as those in Example 1;

[0113] 7. Re-input the new "quadrangle" shape pattern file in the computer, move the pattern so that it has a certain distance from the previously manufactured defect structure, then repeat step 5 to generate a new processing path, and repeat step 6 to start processing the second Defect structure, in this process, when one side is processed and transitions from one side to another, the rotating motor 22 drives the blade to rotate 90 degrees, and then continues processing until the defect processing is completed;

[0114] 8. Re-input the new "...

Embodiment 3

[0117] As preferably, also can add a distance detecting device on the device of the present invention, at this moment, just do not need to select a position as the starting processing position, take the structure in the manufacturing embodiment 1 as an example to specifically illustrate the processing in this case method:

[0118] Except step five, other steps are all identical with the step in embodiment 1;

[0119] 5. Input the file of "hexagonal" shape structure into the computer, move the hexagonal structure to a suitable position, the computer automatically generates the horizontal plane "hexagonal" outline required for cutting, and then the two-dimensional motion mechanism drives the blade First move along the generated contour trajectory, the distance detection device automatically detects the distance between the blade and the bone structure, and then calculates the contour height of the surface of the bone structure by the computer, and the computer generates the proc...

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Abstract

The invention discloses an intelligent processing device suitable for making defects of various shapes and of wall thicknesses. The processing device comprises a supporting frame, a lifting mechanism, a rotating mechanism and a controller. A two-dimensional motion mechanism and a cutting mechanism arranged on the two-dimensional motion mechanism are mounted in the supporting frame. The rotating mechanism is used for adjusting the cutting direction of a blade in the cutting mechanism. The two-dimensional motion mechanism is used for driving the cutting mechanism to carry out adjustment in the two-dimensional direction in the plane perpendicular to the lifting direction of the lifting mechanism. The controller is used for receiving three-dimensional model data of the defects to be processed and converting the three-dimensional model data into a running track of the two-dimensional motion mechanism and blade cutting direction data, and is used for controlling operation of the two-dimensional motion mechanism and the rotating mechanism. The intelligent processing device suitable for making the defects is simple in structure, low in manufacturing cost, convenient to operate, high in intelligent integration degree and capable of automatically making the skull defects different in wall thickness according to design requirements on the premise of not damaging tissue below bone walls, and the shapes of the defects are random.

Description

technical field [0001] The invention relates to a defect manufacturing device, in particular to an intelligent processing device suitable for making defects of various shapes and wall thicknesses on thin-walled bones and skulls of animals. Background technique [0002] Bone tissue engineering repair is a research hotspot in the world today. In order to study the effect of new biomaterials on bone tissue repair performance, researchers need to conduct various animal experiments, the most common of which is skull repair experiments. Create a defect on the skull, and then fill it with biomaterials. At present, the most common method is to drill holes, using a hand-held grinder and a ring drill. Conventional biomaterials are also made into very thin cylinders. Then the quality of the material is illustrated by the bone repair of the cylindrical shape structural biomaterial. [0003] But the real situation is that the shape that needs to be repaired after trauma is not necessari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D1/00
CPCA61D1/00
Inventor 傅建中邵惠锋赵海明贺永柯秀荣
Owner ZHEJIANG UNIV
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