Have you heard about this device? 

 

 

http://www.odondevice.org/

 

This could be an interesting device for obstetrics:

http://www.youtube.com/watch?v=fFEFkAnL93A&feature=youtu.be

 

It is currently being endorsed by WHO who want to study it in ressource poor settings.

http://www.who.int/reproductivehealth/topics/maternal_perinatal/odon_device/en/

Sounds like a good tool, indeed!

 

I think there are lots of creativity that could be freed for doing simple tools with great impact on maternal and infant health in the world.

 

I also come to think about Lifebox, a simple and cheap pulse oximeter, which recieved well-deserved attention by the BMJ (Christmas appeal 2011)

http://www.lifebox.org/

http://www.bmj.com/content/343/bmj.d8085