 |
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 (Back On) ( 0 )
Related News Stories - (" Robotics ")
MIT Robot Cheetah Video Shows Gait Transition
'The legs are long, curled way up to deliver power, like a cheetah's.'- Neal Stephenson, 1992.
Drosophila Robotica, The Mechanical Fly
'... the Scarab [flying robot] buzzed into the great workroom as any intruding insect might...'- Raymond Z. Gallun, 1936.
Robo-Raven Flapping Wing Robot Bird
'When he had first built them, they had been crude indeed, flying mechanisms with little more than a reflex-response unit.'- Philip E. High, 1968.
Bartendro Robot Bartender
'He sipped the cognac that the robot bartender handed him...'- Alfred Bester, 1956.
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
German Firm Seeks To Recruit Autistics
Not a deficit, but a strength.
NASA Supports Pizza Printer
Is it extra with printed pepperoni?
Could Ground-Based Lasers De-Orbit Space Junk?
'Then their lasers vaporized the smaller satellites...'
'Hello, Computer!' Google Now Highlighted at IO13
'Hello, computer!'
MIT Robot Cheetah Video Shows Gait Transition
'The legs are long, curled way up to deliver power, like a cheetah's.'
TrackingPoint Smart Rifle
Not your typical 'smart bullet' approach.
Sky City's 220 Stories Are Go
'It rested among green parklands and... stood in total isolation, a glittering block of whites and flashing windows dotted with colors.'
CARMAT Bioprosthetic Total Human Heart Replacement
'George Walt's corporate existence proved the workability of wholly mechanical organs...'
Personal Sniffer Robots
'...The ticking combinations of the olfactory system of the hound.'
Physical Exam? We've Got Apps
See the future of handheld, personal medical devices.
The Interplanetary Internet, Vint Cerf Speaking
'This was the center of Interplanetary Communications.'
Drosophila Robotica, The Mechanical Fly
'... the Scarab [flying robot] buzzed into the great workroom as any intruding insect might...'
Robo-Raven Flapping Wing Robot Bird
'When he had first built them, they had been crude indeed, flying mechanisms with little more than a reflex-response unit.'
Japan's Nursing Home Robot Plan
Let's make the Roujin Z-0001 Robotic Bed!
Samsung Smart TVs With Gesture Control
'He waved his hand and the circuit switched abruptly.'
Swiss HCPVT Giant Photovoltaic 'Flower'
'...leaning against one of the slender stalks of a sunshade-photocell collector.'
