Apparatus and method for inserting an intra-aorta catheter through a delivery sheath
First Claim
1. A local renal therapy system, comprising:
- an introducer sheath with a tubular wall with a proximal end portion, a distal end portion that is adapted to be positioned at a location within an abdominal aorta associated with first and second renal ostia of first and second renal arteries, respectively, while the proximal end portion extends externally from the patient, and an introducer lumen that extends along a longitudinal axis between a proximal port along the proximal end portion and a distal port along the distal end portion;
a bilateral renal delivery assembly with a local injection assembly that is adapted to be delivered to the location in a first condition through the introducer lumen;
wherein the introducer sheath has an adjustable length between a first configuration and a second configuration;
wherein in the first configuration the introducer sheath has a first length that is adapted to deliver the local injection assembly in a first condition to the location;
wherein in the second configuration the introducer sheath has a second length that is shorter than the first length and that corresponds with the local injection assembly extending in a second condition distally from the distal port at the location; and
wherein in the second condition at the location the local injection assembly is adapted to be coupled to a source of fluid agent externally of the patient and to deliver a volume of fluid from the source bilaterally into each of the two renal arteries.
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Accused Products
Abstract
An introducer system delivers therapy locally to a renal system in a patient. A proximal coupler assembly is coupled to an introducer sheath that delivers multiple devices simultaneously into a location within an abdominal aorta associated with first and second renal artery ostia. The coupler assembly has a network of branch lumens arranged to allow for smooth slideable engagement of multiple coupled devices without substantial interference therebetween. A first branch lumen typically introduces a percutaneous translumenal interventional device such as an angiography or guiding catheter into the introducer sheath and is substantially aligned with a longitudinal axis of the sheath. One or more other branch lumen are off-axis from the longitudinal axis by about 30 degrees or less and introduce components of a bilateral renal delivery assembly into the introducer sheath in conjunction with the other device. Novel insertion devices are provided to coordinate the coupling of the multiple devices.
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Citations
5 Claims
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1. A local renal therapy system, comprising:
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an introducer sheath with a tubular wall with a proximal end portion, a distal end portion that is adapted to be positioned at a location within an abdominal aorta associated with first and second renal ostia of first and second renal arteries, respectively, while the proximal end portion extends externally from the patient, and an introducer lumen that extends along a longitudinal axis between a proximal port along the proximal end portion and a distal port along the distal end portion; a bilateral renal delivery assembly with a local injection assembly that is adapted to be delivered to the location in a first condition through the introducer lumen; wherein the introducer sheath has an adjustable length between a first configuration and a second configuration; wherein in the first configuration the introducer sheath has a first length that is adapted to deliver the local injection assembly in a first condition to the location; wherein in the second configuration the introducer sheath has a second length that is shorter than the first length and that corresponds with the local injection assembly extending in a second condition distally from the distal port at the location; and wherein in the second condition at the location the local injection assembly is adapted to be coupled to a source of fluid agent externally of the patient and to deliver a volume of fluid from the source bilaterally into each of the two renal arteries. - View Dependent Claims (2, 3, 4, 5)
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Specification