Hornbostel with Pump2Baby Attachment (IMAGE) University of Pittsburgh Caption Hornbostel with a prototype of the Pump2Baby breast pump accessory. Credit Swanson School of Engineering Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.