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Hybrid 3D printer could fast-track cartilage implants
Most of the attention surrounding 3D printers in medicine has focused on patching up our outsides, whether it's making skin to heal wounds or restoring the use of limbs. The Wake Forest Institute for Regenerative Medicine has just detailed a technique that could go considerably deeper. By mixing natural gel put through an inkjet printer with thin and porous polymer threads coming from an electrospinner, researchers have generated constructs that could be ideal for cartilage implants: they encourage cell growth in and around an implant while remaining durable enough to survive real-world abuse. Early tests have been confined to the lab, but the institute pictures a day when doctors can scan a body part to produce an implant that's a good match. If the method is ultimately refined for hospital use, patients could recover from joint injuries faster or more completely -- and 3D printers could become that much more integral to health care.
Researchers tout progress with 'skin printers,' hope to one day treat battlefield wounds
We've already seen that living tissue can be printed using what amounts to a bio-inkjet printer, and some researchers from the Wake Forest Institute for Regenerative Medicine now say they've made some considerable progress that could bring the technology one step closer to use on the battlefield. Specifically, they've been able to speed up the healing of wounds on mice using a "printed" swath of tissue and completely heal the wound in three weeks, whereas an untreated wound did not heal itself in the same time period. Of course, there's no word on any plans for tests on humans just yet, but the researchers do plan to take one more step in that direction by moving on to tests on pigs next.
