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"The science fiction method is dissection and reconstruction. You look at the world around you, and take it apart into its components. Then you take some of those components, throw them away, and plug in different ones, start it up and see what happens."
- Frederik Pohl

Diagnostat  
  A device able to diagnose and treat most human ailments.  

If you are going to maroon yourself on an alien planet, you might want to take one of these along for your medical needs.

His legs were in bad shape, though none of the wounds seemed really serious... Muller got the diagnostat going.

"It's an old model," Rawlins said. "I'm not sure what to do."

"Stick your legs in front of the scanner."

Rawlins swiveled about. A blue light played on his wounds. In the bowels of the diagnostat things chuttered and clicked. A swab came forth on a jointed arm and ran deftly and lightly up his left leg... The machine engulfed the bloody swab and began to digest it back into its component molecules... He was getting a coagulant as well as a cleanser...

The diagnostat produced an ultrasonic node and injected a golden fluid into Rawlins' rump. Pain-damper, Muller guessed. A second injection, deep amber, was probably some kind of all-purpose antibiotic to ward off infection... Now a variety of arms sprang forward from various sectors of the device, inspecting Rawlins' lesions in detail...

From The Man in the Maze, by Robert Silverberg.
Published by Avon Books in 1969
Additional resources -

Handily, the diagnostat also had a self-regenerating supply of medicines and supplies.

Compare to Larry Niven's autodoc from this 1970 novel Ringworld.

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Additional resources:
  More Ideas and Technology from The Man in the Maze
  More Ideas and Technology by Robert Silverberg
  Tech news articles related to The Man in the Maze
  Tech news articles related to works by Robert Silverberg

Diagnostat-related news articles:
  - Physical Exam? We've Got Apps

Articles related to Medical
You'll Regrow That Limb, One Day
First 3D Printed Human Corneas From Stem Cells
Nanorobots Roam Your Bloodstream, Cleaning It
MIT Ampli Blocks Build Biomedical Devices

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