STEM与日常科技·英语30篇（2）
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3D Printing Custom Prosthetic Hands for Children and Adults
3D打印为儿童与成人定制假肢手
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Traditional prosthetic hands cost thousands of dollars and take months to fabricate in specialized labs.
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3D printing lets clinics produce lightweight, colorful, and fully functional hands in under a week.
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Designs are customized using scans or measurements, so each hand fits the user’s unique anatomy.
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Many open-source models are freely downloadable and adjustable for growth—ideal for children who outgrow limbs quickly.
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Tendon-driven mechanisms use flexible filaments to mimic finger bending without expensive motors.
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Therapists collaborate with engineers to refine grip strength and range of motion for daily tasks.
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Some schools run prosthetic clubs where students print and assemble hands for local patients.
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Though not yet strong enough for heavy labor, these hands restore independence in school and play.
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New biocompatible materials also allow direct skin contact without irritation over time.
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This blend of compassion, computation, and craftsmanship shows how tech serves human dignity.