A SELF-REGULATING PUMP CHAMBER FOR STANDARD ROLLER PUMPS

Award Information
Agency:
Department of Health and Human Services
Branch
n/a
Amount:
$46,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
7302
Agency Tracking Number:
7302
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Po Box 1467 Route 34, Wall, NJ, 07719
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
GEORGE REPETTI
(201) 681-7070
Business Contact:
() -
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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