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Publication numberUST994001 I4
Publication typeGrant
Application numberUS 05/918,799
Publication dateMay 6, 1980
Filing dateJun 26, 1978
Priority dateJun 26, 1978
Publication number05918799, 918799, US T994001 I4, US T994001I4, US-I4-T994001, UST994001 I4, UST994001I4
InventorsGerald D. Buckberg, Charles W. Dyson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hypothermic cardioplegia administration set
US T994001 I4
Abstract
The invention is an improved delivery system for injecting a cardioplegic solution made mostly of a patient's own blood into his heart in order to arrest it. The delivery system is used in combination with a cardiopulmonary bypass apparatus which includes an oxygenator, a roller pump, and typing connecting the patient's heart to the oxygenator so that patient's blood will flow into the oxygenator and the roller pump will pump it out of the oxygenator back into the patient's heart. The delivery system includes a blood bag for storing a portion of the patient's blood, a Y-shaped tubing having a first end with a single opening and a second end with a pair of openings with the single end mechanically coupled to the oxygenator so that the blood will travel from the oxygenator into the Y-shaped tubing, and a heat exchanger disposed between the blood bag and one of the pair of openings of the second end of the Y-shaped tubing and connected thereto so that blood may be pumped from the oxygenator through the heat exchanger into the blood bag by a first small roller pump. The delivery system also includes a stopcock which is connected to the other opening at the second end of the Y-shaped tubing and is also connected to the blood bag so that drugs may be injected into the patient's blood in the blood bag in order to form the cardioplegic solution through the stopcock. A clamping device is used to first clamp off second opening of the Y-shaped tubing and then to clamp off first end thereof. There is also an output tubing and a second small roller pump for pumping the cardioplegic solution into the heart in order to arrest it.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5115682 *May 21, 1990May 26, 1992Feiler Ernest MCoronary artery graft flow-meter
US5385540 *May 26, 1993Jan 31, 1995Quest Medical, Inc.Cardioplegia delivery system
US5573502 *Mar 1, 1994Nov 12, 1996Quest Medical, Inc.Display panel and controls for blood mixture delivery system
US5645531 *Mar 1, 1994Jul 8, 1997Quest Medical, Inc.Constant pressure blood mixture delivery system and method
US6620187Oct 11, 2001Sep 16, 2003Medivance IncorporatedPatient temperature control system with make-up fluid supply
US6645232Oct 11, 2001Nov 11, 2003Medivance IncorporatedPatient temperature control system with fluid pressure maintenance
US6660027Oct 11, 2001Dec 9, 2003Medivance IncorporatedPatient temperature control system with fluid preconditioning
US6692518Feb 27, 2002Feb 17, 2004Medivance IncorporatedPatient temperature control system
US6699267Oct 11, 2001Mar 2, 2004Medivance IncorporatedPatient temperature control system with fluid temperature response
US6818012Sep 3, 2002Nov 16, 2004Medivance, IncorporatedPatient temperature control system with fluid temperature response
US8491644Feb 21, 2006Jul 23, 2013Medivance IncorporatedPortable, refrigerant-based apparatus and method for rapid systemic patient cooling
USRE36386 *Feb 12, 1997Nov 9, 1999Quest Medical, Inc.Cardioplegia delivery system
EP0445079A2 *Jan 11, 1991Sep 4, 1991E.M.S. S.R.L.Apparatus for the perfusion of cardioplegic solutions during heart surgery
Classifications
U.S. Classification128/DIG.3
International ClassificationA61M1/36
Cooperative ClassificationY10S128/03, A61M1/3621, A61M2205/366
European ClassificationA61M1/36C