Mini pump drives blood analyzer

Nov. 6, 2003
Advances in controls and networks combined with components that pack more punch have opened the door to more-precise, durable, and economical pneumatic systems.
Miniature CTS diaphragm pumps and compressors deliver up to 2.5 lpm flow.

To meet consumer demands for a compact, energy-efficient blood-analysis system, a leading medical-device manufacturer turned to Hargraves Technology, Mooresville, N.C. By applying more-efficient motors and advanced pump-head technology, Hargraves developed a micro vacuum pump and compressor that halved power consumption versus previous-generation blood analyzers.

The CTS miniature pump measures just 1.74-in. long by 1.27-in. high, yet delivers up to 2.5 lpm unrestricted flow, pressure to 24 psig, and vacuum service to 20-in. Hg. Three configurations include: brushless dc motors for long life, brush motors for low cost, and coreless motors for maximum energy efficiency. All are available in 6, 9, or 12-Vdc versions. Operating current varies from 50 to 500 mA, depending on motor type, voltage, flow, and pressure requirements.

The single-head micro diaphragm pumps and compressors feature an advanced proprietary diaphragm elastomer for long life. Ports are barbed to handle 1/8-in. flexible tubing.

They are dynamically balanced to minimize noise, operating at levels as low as 45 dB. The unit is suited for use with most gases over an operating temperature range of 5 to 50°C. The oil-free designs maintain system purity, and are commonly used on FDA-approved systems.

About the Author

Kenneth Korane

Ken Korane holds a B.S. Mechanical Engineering from The Ohio State University. In addition to serving as an editor at Machine Design until August 2015, his prior work experience includes product engineer at Parker Hannifin Corp. and mechanical design engineer at Euclid Inc. 

Sponsored Recommendations

March 31, 2025
Unlike passive products - made of simple carbon springs - the bionic prostheses developed by Revival Bionics are propulsive, equipped with a motor and an artificial Achilles tendon...
March 31, 2025
Electric drives are a key technology for the performance of machines, robots, and power tools. Download this guide for an introduction to high-quality mechatronic drive systems...
March 31, 2025
Discover the world of maxon drive technology: motors, gearheads, sensors, controllers, and accessories. Configure your drive system online, including all relevant product and ...
March 31, 2025
Share current page XSun designs and manufactures a drone that is both energy-independent and can make its own decisions, for fully-automated missions. The company needed reliable...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!