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Du S, Zhang C L, Sun W M, et al. Application of laser microfabrication in medical equipment[J]. Opto-Electron Eng, 2023, 50(3): 220306. doi: 10.12086/oee.2023.220306
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Application of laser microfabrication in medical equipment
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Abstract
Laser microfabrication has the characteristics of ultra fast, ultra precision, etc. It has unique advantages in the field of medical equipment by contrast with traditional processing technology. Especially, it plays an irreplaceable role in the surface processing of biological materials to improve the biocompatibility of materials. The latest application of laser microfabrication in the field of medical equipment manufacturing and processing in recent years is reviewed. The structure and surface manufacturing of vascular stents and bone stents, and the surface modification of biomaterials and antibacterial treatment are emphatically introduced. Finally, the limitations of the current laser micromachining technology are discussed, and the application and development of laser micromachining technology in medical equipment in the future are prospected.-
Keywords:
- laser micromachining /
- vascular stent /
- bone stent /
- biological materials /
- antibacterial
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References
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Du S, Zhang C L, Sun W M, et al. Application of laser microfabrication in medical equipment[J]. Opto-Electron Eng, 2023, 50(3): 220306. doi: 10.12086/oee.2023.220306
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Figure 1.
SS316L stainless steel stent[10]
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Figure 2.
SEM image of cutting face[15]. (a) NiTi alloy; (b) PtIr alloy
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Figure 3.
316L stainless steel vascular stent [16]. (a) Physical objects; (b) Amplification; (c) Drug storage hole
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Figure 4.
Femtosecond laser cutting PLLA[20]. (a) Sheet with triangular notch structures; (b) Local structure
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Figure 5.
Laser processing of PLA[21]. (a) Structure of PLA scaffold; (b) 574x micrograph
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Figure 6.
Orthopaedic Implants by the laser 3D printer. (a) Artificial joint; (b) Forehead bone; (c) Intervertebral fusion cage
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Figure 7.
Laser manufacturing of bioceramic stent[36]. (a) Selective laser sintering along a predetermined path β-TCP powder; (b) Porous β-Macro morphology of TCP bioceramic stent; (c) Microstructure of a single sintering path
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Figure 8.
Photo of HA bioceramic stent manufactured by DLP[37]. (a) Structure; (b) Enlarged photo
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Figure 9.
PPy-based active catheter[44]
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Figure 10.
3D optical fiber structure[46]. (a) Processed by laser processing; (b) Structural micrograph
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Figure 11.
Three kinds of micro/nano structures[54]. (a) Fabricated micro/nano structures; (b) The shape of hMSCs on the surface of three structures
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Figure 12.
Micro nano structure produced on TC4 surface by laser processing and pickling[55]
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Figure 13.
Comparison of contact angle between titanium surface and water droplet surface before (a) and after (b) femtosecond laser scanning treatment[66]
