Combined percutaneous cardiopulmonary bypass (PBY) and intra-aortic balloon (IAB) access cannula
DCFirst Claim
1. A cannula adapted for percutaneous insertion into the body of a patient and comprising percutaneous insertion means and a cannula body, said cannula body comprisinga common leg having a distal end, a proximal end and a common lumen therethrough defined by a common lumen wall, said common lumen being in fluid communication with said percutaneous insertion means,a primary access port leg having a primary lumen defined by a primary lumen wall, said primary lumen being in fluid communication with said common lumen and forming a continuous blood flow path therewith,a secondary access port leg having a secondary lumen defined by a secondary lumen wall, andhemostasis means for providing access for percutaneous insertion of a catheter through said secondary lumen and said blood flow path, and for preventing a blood flow from said blood flow path through said secondary lumen.
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Abstract
A cannula for performing two or more medical procedures either individually, seriatim or simultaneously, for example, combined percutaneous PBY and IAB procedures, which cannula includes a body having a common leg and two or more access port legs (e.g. a Y-shaped body), one access port for performing one procedure, a second access port for performing a second procedure, and hemostasis structure. A smooth continuous blood flow path is formed by a common lumen of a common leg of the cannula body and a primary lumen formed in a primary access port leg of the cannula body. The secondary access port legs are provided with secondary lumens that communicate with the common lumen.
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Citations
53 Claims
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1. A cannula adapted for percutaneous insertion into the body of a patient and comprising percutaneous insertion means and a cannula body, said cannula body comprising
a common leg having a distal end, a proximal end and a common lumen therethrough defined by a common lumen wall, said common lumen being in fluid communication with said percutaneous insertion means, a primary access port leg having a primary lumen defined by a primary lumen wall, said primary lumen being in fluid communication with said common lumen and forming a continuous blood flow path therewith, a secondary access port leg having a secondary lumen defined by a secondary lumen wall, and hemostasis means for providing access for percutaneous insertion of a catheter through said secondary lumen and said blood flow path, and for preventing a blood flow from said blood flow path through said secondary lumen.
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42. A cannula adapted to permit passage therethrough of a catheter for percutaneous insertion in the body of a patient, and comprising a cannula body including
a common leg having a common lumen defined by a common lumen wall, said common lumen being in fluid communication with percutaneous insertion means, at least one primary access port leg, each such primary access port leg having a primary lumen therein defined by a primary lumen wall, each said primary lumen being in fluid communication with the common lumen and forming a continuous blood flow path therewith, at least one secondary access port leg, each such secondary access port leg having a secondary lumen therein defined by a secondary lumen wall, and at least one hemostatic valve arranged to provide access for percutaneous insertion of a catheter through said at least one secondary lumen and said blood flow path, and to prevent a blood flow from said blood flow path through said at least one secondary lumen.
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43. A cannula adapted for percutaneous insertion into the body of a patient comprising percutaneous insertion means and a cannula body, said cannula comprising
a common leg having a distal end, a proximal end, and a common lumen therethrough defined by a common lumen wall, a first access port leg having a first lumen defined by a first lumen wall, first hemostasis means for preventing blood from exiting through said first access port leg when said leg is not in use, a second access port leg having a second lumen defined by a second lumen wall, and second hemostasis means for preventing blood from exiting through said second leg when said leg is not in use, wherein access to said common lumen can be gained through each of said first and second legs.
Specification