Implant and method for producing same

A manufacturing method and implant technology, applied in the direction of bone implants, dental implants, prostheses, etc., can solve problems such as inability to maintain fibrin fibers, difficulty in osseointegration, calcium deposition, and difficulty in cell adhesion, etc., to achieve improved The effect of osseointegration

Inactive Publication Date: 2017-02-15
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, as described above, although the pores with an average diameter of 5 μm can increase the contact area with the bone tissue, there is a problem that the fibrin fibers cannot be maintained on the surface of the base material because there are no pores of 2 μm or less, and, Since there are no stomata below a few hundred nanometers, it is difficult for cells to adhere, and it is difficult for calcium deposition required for osseointegration to occur.

Method used

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  • Implant and method for producing same
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  • Implant and method for producing same

Examples

Experimental program
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Effect test

no. 1 Embodiment

[0049] Next, a first example of the implant 1 according to one embodiment of the present invention will be described.

[0050] In the implant 1 of this embodiment, the anodized film 3 formed on the surface of the base material 2 made of a magnesium alloy has a thickness of 1 mm. 2 There are 56,000 pores with an average diameter of 1 μm.

[0051] Substrate 2 is immersed in the electrolyte solution with a phosphoric acid concentration of 0.05mol / L, and the current density on the surface of the anode reaches 20A / dm 2 A constant current power supply was used as the power supply, the energization time was set to 60 seconds, and the final voltage of the applied voltage at the end of energization was set to 400V.

[0052]An electron micrograph of the anodized film 3 on the surface of the implant 1 thus produced is shown in figure 2 . It can be seen that every 1mm 2 There are 56,000 pores with a diameter size of 0.4 μm to 5 μm and an average diameter of 1 μm.

[0053] According ...

no. 2 Embodiment

[0058] Next, a second example of the implant 1 according to one embodiment of the present invention will be described.

[0059] In the implant 1 of this embodiment, the anodized film 3 formed on the surface of the base material 2 made of a magnesium alloy has a thickness of 1 mm. 2 There are 62,000 pores with an average diameter of 0.5 μm.

[0060] Substrate 2 is immersed in the electrolyte solution with a phosphoric acid concentration of 0.1mol / L, and the current density on the surface of the anode reaches 30A / dfm 2 A constant current power supply was used as the power supply, the energization time was 60 seconds, and the final voltage of the applied voltage at the end of energization was set to 350V.

[0061] An electron micrograph of the anodized film 3 on the surface of the implant 1 thus produced is shown in image 3 . It can be seen that every 1mm 2 There are 62000 pores with a diameter size of 0.2 μm to 1.2 μm and an average diameter of 0.5 μm. In addition, pores (...

no. 3 Embodiment

[0068] Next, a third example of the implant 1 according to one embodiment of the present invention will be described.

[0069] In the implant 1 of this embodiment, the anodized film 3 formed on the surface of the base material 2 made of a magnesium alloy has a thickness of 1 mm. 2 There are 248,520 pores with an average diameter of 100 nm.

[0070] Substrate 2 is immersed in the electrolyte solution with a phosphoric acid concentration of 0.05mol / L, and the current density on the surface of the anode reaches 30A / dm 2 A constant current power supply was used as the power supply, the energization time was 60 seconds, and the final voltage of the applied voltage at the end of energization was set to 350V.

[0071] An electron micrograph of the anodized film 3 on the surface of the implant 1 thus produced is shown in Figure 5 . It can be seen that every 1mm 2 There were 248,520 pores with diameters ranging from 50 nm to 200 nm and an average diameter of 100 nm.

[0072] Acco...

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Abstract

Provided are: an implant having improved osseointegration performance; and a method for producing the implant. Provided is an implant (1) comprising a base material (2) made from magnesium or a magnesium alloy and an anodic oxide film (3) formed on the surface of the base material (2), wherein the anodic oxide film (3) has pores having an average diameter of 0.1 to 1 [mu]m at a density of 8000 to 250000 pores per 1 mm2.

Description

technical field [0001] The present invention relates to an implant and its manufacturing method. Background technique [0002] Conventionally, implant treatment in which a titanium or titanium alloy implant is embedded in the jawbone of the tooth-missing part and used instead of the natural tooth root by direct bonding with the bone (osseointegration) has been popularized. Dental implants are known to modify the surface by sandblasting, acid treatment, or anodizing in order to form a surface that is easily bonded to bone tissue (see, for example, Patent Documents 1 and 2). [0003] According to these patent documents 1 and 2, it is known that the tens of μm-order pores on the surface of the implant have the effect of increasing the surface area and increasing the contact area with the bone tissue, and the pores of 1 μm to 2 μm have the effect of maintaining the fibrin fibers from the blood. As for the effect on the surface of the implant, the stomata of several tens of nano...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C25D11/30A61C8/00A61F2/28A61L27/00
CPCA61C8/0015A61C13/0012A61F2/28A61F2310/00041A61L27/047A61L27/12A61L27/56A61L2430/02A61L2430/12C25D11/30A61C8/0006A61L27/00
Inventor玉井将人
OwnerOLYMPUS CORP