To Test Artificial Hearts Mock Circulatory System Developed at PSU Engineers at Penn State have developed a new mock cir culatory system to evaluate artifical hearts before they are implanted in animals. It uses hardware—pistons, flat steel plates, plastic tubes, etc.— to simulate the conditions present in the animal’s body. And it circulates a thick clear fluid instead of blood. Dr. John Brighton, associate professor of mechanical engineering, will report on the new system at a symposium of the Japan Society of Mechanical Commonwealth National jV Agri-Loan Corp. A subsidiary of Commonwealth National Bank Serving Agriculture in South Central Pennsylvania Member FDIC from I\EW HOLLAND Save Trips With The... BIG Model ’79o’ SPREADER Giant new Model 790 spreader is really big ... carries 358 bushels per trip! it's built for the hard lifr hh A.B.C. Groff, Inc. 110 S. Railroad Ave. New Holland 354-4191 C. E. Wiley & Son, Inc. 101 S. Lame St., Quarryville 786-2895 Engineers in Tokyo this Sep tember and at the Joint Automatic Controls Conference at Stanford University in Agust. The work is part of a twelve man project aimed at the development of an artifical heart being conducted in cooperation with Penn State’s Hershey Medical Center. Principal in vestigator there is Dr. William S. Pierce, a specialist in cardian surgery. Plastic artifical hearts fabricated at Hershey must be tested prior to implant in L. H. Brubaker 350 Strasburg Pike Lancaster 397-5179 Roy A. Brubaker 700 Woodcrest Ave. Lititz 626-7766 Dr. John Brighton demonstrates the Unique feature is piston, which expands Penn State mock circulatory system and contracts to store blood in imitation of designed by him to test artificial hearts the aorta in the body. (lower foreground) before implantation. animals. They must be coupled to a mock circulatory system so their performance—in terms of the delivery of blood—can be evaluated. Systems currently in use by heart-development researchers, according to Dr. Brighton, “are either too complex and in convenient to operate or so simple that they do not Lancaster Farming, Saturday, August 5,1972 adequately simulate physiological conditions.” Dr. Brighton, Dr. W. M Phillips and graduate student Gus Rosenberg designed and built the new system with partial support from the Pennsylvania Science and Engineering Foundation. Some twenty pairs of ven tricles—the heart’s pumps — f&r being made at Hershey will be tested on the new apparatus before being implanted in calves. the The Penn State mock cir culatory system sits on top of a small table in Dr Brighton’s laboratory. A clear fluid having the same viscosity as blood is pumped through the system by plastic ventricles whose beat rate is maintained pneumatically • by air or other gas under pressue. A key feature of the Penn State system is its pistons, which represent the aortal chambers near the heart. “The aorta’s variable (Continued On Page 30) sustain top production with the BABCOCK B-300 Keeping production up,,.costs down... Is the prof It key In poultry operations. And more and more records on commercial flocks of Babcock B-300 , 5..." The Bust* nessman’s Bird”...show sus talned production of top quality eggs...q(ten with an additional 20 to 30 eggs per bird housed over other strains. Come 1n... look at the records and the B-300 ...“The Businessman’s Bird”* BABCOCK FARMS, UK. Telephone (717) 62&4561) 29
Significant historical Pennsylvania newspapers