A SELF-REGULATING PUMP CHAMBER FOR STANDARD ROLLER PUMPS

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 7302
Amount: $46,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Adam Spence Corpon
Po Box 1467 Route 34, Wall, NJ, 07719
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 GEORGE REPETTI
 (201) 681-7070
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE ROLLER PUMP, USED TO PUMP BLOOD FLOW DURING CARDIOPULMONARY BYPASS AND TO PROVIDE LONG-TERM CIRCULATORY SUPPORT, IS A CONSTANT-BLOOD-FLOW DEVICE. IT MAINTAINS CONSTANT FLOW INDEPENTLY OF THE CLINICALLY EXPECTED CHANGES IN INLET PRESSURES. A DECREASE IN BLOOD SUPPLY TO THE INLET OF THE PUMP WITHOUT A CONCOMITANT DECREASE IN PUMP SPEED CAN CAUSE EXCESSIVE SUCTION LEADING TO AIR EMBOLISM, THROMBOSIS, AND DAMAGE BY THE "VENOUS" CANNULA TO THE VESSEL'S INTIMA OR, WITH A BUBBLE OXYGENATOR, THE EMPTYING OF THE OXYGENATOR, PUMPING AIR TO THE PATIENT. THE PURPOSE OF THIS RESEARCH IS TO DESIGN, FABRICATE, AND EVALUATE A NEW, INNOVATIVE DISPOSABLE PUMP CHAMBER FOR THE STANDARD ROLLER PUMP THAT SELF-CONTROLS THE PUMP FLOW AS A FUNCTION OF INLET OR FILLING PRESSURE, MUCH LIKE THE NATURALHEART. THE PUMP CHAMBER CONSISTS OF AN EASILY COLLAPSIBLE THIN-WALL TUBING (TWT) HOUSED AND SEALED IN A STANDARD PUMP TUBING. THE INNER TWT SERVES TO PUMP BLOOD AND THE OUTER TUBING SERVES AS A MECHANICAL SUPPORT AND CONTROLLED PRESSURE ENVIRONMENT FOR THE TWT. THIS PUMP CHAMBER CAN PROVIDE ADDITIONAL SAFETY DURING OPEN HEART SURGERY AND ALSOFUNCTION AS AN INEXPENSIVE, SELF-CONTROLLING MECHANISM FOR LONG-TERM CIRCULATORY SUPPORT.

* information listed above is at the time of submission.

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