Using 3D Printers
The surgeries carried out in space so far have revealed that a large amount of support equipment is essential. This is a luxury the crew may not have on a virgin voyage to Mars.
You cannot take much equipment on a rocket. It has therefore been suggested that a 3D printer could use materials from Mars itself to develop surgical tools.
Tools that have been 3D printed have been successfully tested by crew with no prior surgical experience, performing a task similar to surgery simply by cutting and suturing materials (rather than a body). There was no substantial difference in time to completion.
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