Devices, methods and kits for delivery of therapeutic materials to a pancreas
First Claim
1. An apparatus, comprising:
- an inner catheter defining a guidewire lumen configured to receive a guidewire;
an outer catheter movably coupled to the inner catheter, the outer catheter and the inner catheter being coaxial, the outer catheter having a first lumen defined entirely by a side wall of the outer catheter in fluid communication with an infusion aperture defined by the side wall of the outer catheter proximal to a distal end of the outer catheter, the first lumen configured to introduce a therapeutic agent directly through the infusion aperture and into one or more target vessels, and a second lumen configured to receive at least a portion of the inner catheter;
a first occlusion element coupled to the inner catheter, the inner catheter further defining an inflation lumen configured to communicate an inflation medium to the first occlusion element;
a second occlusion element coupled to the outer catheter, the second occlusion element disposed proximal to the first occlusion element; and
a seal coupled between the inner catheter and the outer catheter and configured to fluidically isolate the first lumen of the outer catheter from the second lumen of the outer catheter,the infusion aperture of the outer catheter being disposed between the first occlusion element and the second occlusion element, the first lumen being the only lumen that is in fluidic communication with a region defined between the first occlusion element and the second occlusion element.
1 Assignment
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Accused Products
Abstract
An apparatus includes an inner catheter that is coupled to a handle and defines a lumen configured to receive a guidewire. An outer catheter is movably coupled to the handle and defines a first lumen in fluid communication with a distal opening and that is configured to introduce a therapeutic agent through the distal opening and into a target pancreatic artery(ies). The outer catheter defines a second lumen configured to receive at least a portion of the inner catheter. An actuator is coupled to the handle and configured to move the outer catheter relative to the handle. A first occlusion element is coupled to the inner catheter and a second occlusion element is coupled to the outer catheter and disposed proximal to the first occlusion element. A distance between the first occlusion element and the second occlusion element is adjustable when the outer catheter is moved relative to the handle.
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Citations
29 Claims
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1. An apparatus, comprising:
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an inner catheter defining a guidewire lumen configured to receive a guidewire; an outer catheter movably coupled to the inner catheter, the outer catheter and the inner catheter being coaxial, the outer catheter having a first lumen defined entirely by a side wall of the outer catheter in fluid communication with an infusion aperture defined by the side wall of the outer catheter proximal to a distal end of the outer catheter, the first lumen configured to introduce a therapeutic agent directly through the infusion aperture and into one or more target vessels, and a second lumen configured to receive at least a portion of the inner catheter; a first occlusion element coupled to the inner catheter, the inner catheter further defining an inflation lumen configured to communicate an inflation medium to the first occlusion element; a second occlusion element coupled to the outer catheter, the second occlusion element disposed proximal to the first occlusion element; and a seal coupled between the inner catheter and the outer catheter and configured to fluidically isolate the first lumen of the outer catheter from the second lumen of the outer catheter, the infusion aperture of the outer catheter being disposed between the first occlusion element and the second occlusion element, the first lumen being the only lumen that is in fluidic communication with a region defined between the first occlusion element and the second occlusion element. - View Dependent Claims (2, 3, 4, 17, 18, 19, 20, 21)
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5. An apparatus, comprising:
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an inner catheter fixedly coupled to a first occlusion element and defining an inflation lumen fluidically coupled to the first occlusion element and a guidewire lumen configured to receive a guidewire therethrough; an outer catheter movably coupled to the inner catheter and fixedly coupled to a second occlusion element, the outer catheter being coaxial with the inner catheter, the outer catheter defining a first lumen defined entirely by a side wall of the outer catheter and in fluid communication with an infusion aperture defined by the side wall of the outer catheter between the first occlusion element and the second occlusion element and configured to directly introduce a therapeutic agent through the infusion aperture and into one or more target arteries, and a second lumen configured to receive at least a portion of the inner catheter; and a seal coupled between the inner catheter and the outer catheter and configured to fluidically isolate the second lumen of the outer catheter. - View Dependent Claims (6, 7, 8, 9, 10, 22, 23, 24)
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11. An apparatus, comprising:
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an inner catheter defining a guidewire lumen configured to receive a guidewire; an outer catheter defining a first lumen terminating at an infusion aperture, the first lumen and the infusion aperture each defined entirely by a side wall of the outer catheter, the infusion aperture being in fluid communication with the first lumen, the first lumen configured to directly communicate a therapeutic agent to the infusion aperture and into one or more target arteries, and a second lumen configured to slidably receive at least a portion of the inner catheter, the outer catheter and the inner catheter being coaxial; a first occlusion element coupled to the inner catheter, the inner catheter defining an inflation lumen configured to communicate an inflation medium to the first occlusion element; a second occlusion element coupled to the outer catheter, the second occlusion element disposed proximal to the first occlusion element, a distance between the first occlusion element and the second occlusion element being adjustable; and a sealing element coupled to the outer catheter and configured to fluidically isolate the second lumen of the outer catheter and prevent the therapeutic agent from entering the second lumen of the outer catheter when communicated out of the infusion aperture and into the one or more target arteries, the infusion aperture being disposed between the second occlusion element and the sealing element. - View Dependent Claims (12, 13, 14, 15, 16, 25, 26, 27, 28, 29)
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Specification