cxlxmxrx

new painless needle

Indian and Japanese researchers have created a new needle based on a mosquito that is supposed to be painless:
The new needle has an inner diameter of around 25 microns and an external diameter of 60 microns, which is about the same size as a mosquito's mouthpart. Its size and the fact that it works by suction, makes it painless. To compare, a conventional syringe needle has an outer diameter of around 900 microns.
...
Its size compared to earlier models also means that surface tension effects are exploited further, and the same capillary flow that draws water up into trees helps draw blood into the microneedle.
Unfortunately, it seems it is not designed for taking blood for CBC, BMP, PTT, etc:
The researchers have calculated that their needle can extract 5 microlitres of blood per second. This volume is sufficient for measuring blood-sugar levels in diabetics using a glucose sensor that can be attached to the needle in a "wristwatch" design.
via BoingBoing
posted by Chris on Tuesday, July 22, 2008

No comments:

Post a Comment

Newer Post Older Post Home
Subscribe to: Post Comments (Atom)

 


 


 

- cxlxmxrx.blogspot.com -
Blog about health and healthcare
by a health care worker:
• ancestral health
• critical care
• healthcare
• genetics
• infectious diseaese
  • ►  2012 (89)
    • ►  June 2012 (1)
    • ►  May 2012 (7)
    • ►  April 2012 (8)
    • ►  March 2012 (21)
    • ►  February 2012 (21)
    • ►  January 2012 (31)
  • ►  2011 (158)
    • ►  December 2011 (24)
    • ►  November 2011 (1)
    • ►  October 2011 (20)
    • ►  September 2011 (20)
    • ►  August 2011 (22)
    • ►  July 2011 (21)
    • ►  June 2011 (1)
    • ►  April 2011 (13)
    • ►  March 2011 (29)
    • ►  February 2011 (7)
  • ►  2010 (5)
    • ►  November 2010 (1)
    • ►  May 2010 (1)
    • ►  January 2010 (3)
  • ►  2009 (175)
    • ►  October 2009 (2)
    • ►  August 2009 (2)
    • ►  July 2009 (20)
    • ►  June 2009 (2)
    • ►  May 2009 (28)
    • ►  April 2009 (41)
    • ►  March 2009 (48)
    • ►  February 2009 (22)
    • ►  January 2009 (10)
  • ▼  2008 (284)
    • ►  December 2008 (14)
    • ►  November 2008 (24)
    • ►  October 2008 (18)
    • ►  September 2008 (21)
    • ►  August 2008 (26)
    • ▼  July 2008 (18)
      • Last Sunday's Mother Goose & Grim
      • Japanese drug pictograms
      • Monkey cells for bird flu vaccine
      • 3rd annual R-3 barbeque
      • HIV/AIDS update - revisions and solutions
      • SciAm on misuses of fMRI
      • Women better at learning nursing courses?
      • Michelangelo's David returns from America
      • this is Niculina
      • speedy studies
      • parasite fun for little ones
      • reason for studying nursing in upstate NY: romance!
      • new painless needle
      • anatomy t-shirts from Etsy
      • Oregan State Mental Hospital being torn down
      • French causes cardiac dysrhythmia?
      • life expectancy of Orthodox Jews
      • summer 2008, half-way
    • ►  May 2008 (21)
    • ►  April 2008 (22)
    • ►  March 2008 (33)
    • ►  February 2008 (78)
    • ►  January 2008 (9)

 


 


 

series

A series is a collection of related posts, sort of like a series of articles in a newspaper. It may be ongoing, or a short collection of only a few posts. When you click on a link, posts will appear in reverse-chronological order, so you need to go to the beginning if something doesn't make sense.
  • Books for Nurses : reviews of "extracurricular" reading I think would be good for nurses and other health care workers. These should improve understanding of medicine and health care, help improve job skills, or change the way you think about health issues. For a complete listing of media reviews, see the library tag.
  • The Sexy Nurse Report : series of posts juxtaposing the silly sexual images of nurses produced in the media with the unsexy reality of nursing work...
  • ResearchBlogging : series of posts focusing on scientific research that are cross-posted at the ResearchBlogging.org website. Also see my profile there.
  • Orientation & 1st Year of Nursing : series of posts relating to my entry into the nursing profession after nursing school: NCLEX exam, hospital orientation, newbe experiences on the job...
  • Nursing School : series of posts documenting my experience in nursing school. Most of the several hundred posts I have up are from while I was in nursing school, but this series are the ones that I wrote specifically about school while I was a student nurse.

favorite posts

Some of the posts from this blog that tickle my fancy, in no particular order: • 2 liter fat bolus, no ill effects • Marlon, Brando, first laptop user • "sane and rational" approach to swine flu • Marburg Comin' to America • Re-inoculation from the appendix • Gray's Anatomy 150th anniversary • 1949, Fluid balance from the nurses' point of view
  • about
  • contact

other bloggers

  • Athol Kay, RN
  • Dr. Bruce Charlton
  • Dr. Emily Deans
  • Intensive Artist, RN
  • Julianne, RN
  • Dr. Kurt Harris
  • PM, RN
  • Rogue Medic
  • Vincent Racaniello, PhD
  • Dr. Wes Fisher
  • more bloggers!

 

© 2008-2011 cxlxmx: CreativeCommons Attributive License. Simple theme. Powered by Blogger.