Surgery – Blood drawn and replaced or treated and returned to body – Body inserted tubular conduit structure
Reexamination Certificate
2005-01-04
2005-01-04
Lucchesi, Nicholas D. (Department: 3763)
Surgery
Blood drawn and replaced or treated and returned to body
Body inserted tubular conduit structure
C604S004010, C604S509000
Reexamination Certificate
active
06837864
ABSTRACT:
This invention is a multichannel catheter for extracorporeal circulation of blood to a patient undergoing cardiovascular treatments or surgery. The catheter has three independent channels, an obturator and an expandable balloon at one end of the catheter. The first channel is the largest and is of a size that allows for delivery of blood through outlet parts in the wall of the first channel to a patient in an amount sufficient to maintain the patient's metabolism and perfusion throughout the treatment or surgery. The obturator is longitudinally insertable into the first channel. A second channel, smaller than the first, is integrated into the wall of the first channel, and is suitable for delivering a biologically active fluid (e.g., for cardioplegia) to the heart and/or venting the left heart. A third channel, also smaller than the first, is integrated into the wall of the first channel, and suitable for delivering a fluid to the balloon for its expansion when positioned in the ascending aorta to occlude the flow of blood to the heart. The catheter provides an improved means of preparing for or performing cardiovascular surgery on a patient using a cardiopulmonary machine for extracorporeal circulation of blood. The catheter is particularly useful for cardiac surgery.
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Bertolero Arthur A.
Bertolero Raymond S.
Riebman Jerome B.
Endoscopic Technologies, Inc.
GSS Law Group
Lucchesi Nicholas D.
Maynard Jennifer J
Smith Gregory Scott
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