Bloodbot Robot Takes Blood Samples

Bloodbot is a prototype robot designed to take blood samples; it identifies a suitable blood vessel by pressing a probe against the ante-cubital fossa (ACF) skin surface. and then measuring the force. The ACF is the crease of the arm where the veins are close to the skin. It was developed at Imperial College, London.


(Bloodbot from Imperial College, London)

The presence of a vein is revealed in the difference in the characteristics of the tissue from its surroundings. Once a vein is found, Bloodbot inserts a needle; the force/position profile identifies the proper positioning.

The first axis moves a carriage up and down, so that it goes towards and away from the arm that is strapped in under it. This carriage is used to hold either a blunt probe (for finding a vein) or a syringe and needle. A piezo-resistive force sensor is mounted on the carriage to measure the force on the probe or needle.

The second axis moves the carriage across the width of the arm. This enables the probe to press in a series of places along the width of the arm.

The third axis, which is unpowered, enables a human operator to tilt the robot. This is so that, once a vein has been found, the needle can be inserted into the arm at the correct angle.

The fourth axis moves the whole robot along the length of the arm. This was designed to compensate for the slight difference between where the probe has identified a vein, and where the needle enters the skin, once the robot has been tilted.

Bloodbot is very close to the hypo arm from Harry Harrison's 1958 story Simulated Trainer:

...the padded arms slipped across his bunk, pinning him down securely. He watched the panel slip back in the wall next to him and the hypo arm slide through, moving erratically like a snake as its metal fingers sought him out. They touched his ankle and the serpent's tooth of the needle snapped free. The last thing he saw was the needle slipping into his vein, then the drug blacked him out.

Bloodbot has been tested on one human patient; a vein was successfully located 78% of the time. I don't have a figure on the success of human health care workers, but based on my many conversations with nurses, 78% is not bad.

From the Bloodbot project vis Wired.

Scroll down for more stories in the same category. (Story submitted 9/15/2009)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Robotics ")

Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?'' John Cameron, 1991.

Walmart’s Autonomous Robot Bees
Are you allergic to autonomous robot bees?

Soft Robotics - Now With 3D Printed Sensors!
'A series of chemelectric afferent nerve-analogues, which permitted it to gauge to an ounce the amount of pressure necessary to snap a bone...' - Roger Zelazny, 1966.

Scaly Yet Soft Robotic Snake
Love those robotic sneks.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...'

Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?''

The Hammock Caravan And Italo Calvino's Octavia
'Now I will tell you how Octavia, the spider-web city, is made.'

Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.

Have I Seen The Tesla Roadster Story Before?
'Only it wasn't a vessel. It was an automobile...'

Watch 'Do You Trust This Computer' For Free Today
Thanks for making this available, Elon.

Self-Driving Car Ticketed
This just missed making my day.

Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.'

Burner Generates Temporary Phone Numbers
'Interesting phone system he's got, by the way...'

Walmart’s Autonomous Robot Bees
Everyone loves bees.

EA Created AI That Taught Itself To Play Battlefield
Harmless fun for computer scientists.

Is Teleportation A Death Sentence?
'A long trail of dead, he thought, left across the stars...'

New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...'

Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.'

Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!

Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.