Coaxial dual lumen pigtail catheter
First Claim
1. A catheter comprising:
- a manifold portion including a first connector and a second connector; and
a catheter body including,a proximal dual lumen portion including exactly two longitudinally-extending lumens, an inner lumen and a surrounding outer lumen, that share a common axis, the outer lumen surrounded by a proximal outer wall and the inner lumen surrounded by a proximal inner wall that is structured to withstand high-pressure injections; and
a distal single lumen portion including an extension of the inner lumen, the single lumen portion surrounded by a distal outer wall,the first connector in fluid communication with the inner lumen and the second connector in fluid communication with the outer lumen.
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Accused Products
Abstract
A coaxial dual lumen pigtail catheter utilizes coaxial construction incorporating a thin wall guiding catheter technology for the outer lumen and using a strong braided diagnostic technology for the central lumen to accommodate high-pressure injections. The catheter includes a manifold body to provide for connection to each of the dual lumens. The distal end of the coaxial dual lumen pigtail catheter tapers to a more flexible portion that is perforated by spiral side holes to provide for more undistorted pressure readings in the left ventricle. The coaxial dual lumen pigtail catheter also utilizes proximal straight sideholes at the end of the dual lumen portion and a taper between the dual lumen portion and the single lumen portion.
38 Citations
29 Claims
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1. A catheter comprising:
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a manifold portion including a first connector and a second connector; and a catheter body including, a proximal dual lumen portion including exactly two longitudinally-extending lumens, an inner lumen and a surrounding outer lumen, that share a common axis, the outer lumen surrounded by a proximal outer wall and the inner lumen surrounded by a proximal inner wall that is structured to withstand high-pressure injections; and a distal single lumen portion including an extension of the inner lumen, the single lumen portion surrounded by a distal outer wall, the first connector in fluid communication with the inner lumen and the second connector in fluid communication with the outer lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A catheter comprising:
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a manifold portion including a first connector and a second connector; and a catheter body including, a proximal dual lumen portion including exactly an inner lumen and a surrounding outer lumen that share a common axis, the outer lumen surrounded by an outer wall having at least two side holes, the inner lumen in fluid communication with the first connector, the outer lumen in fluid communication with the second connector, and the at least two side holes consecutively aligned with each other along a line that is parallel with the common axis, where the inner lumen is surrounded by a proximal inner wall that is structured to withstand high-pressure injections; and a distal single lumen portion forming an extension of the inner lumen, the single lumen portion including a bend, a plurality of side holes, and a pigtail tip; wherein the plurality of side holes of the single lumen portion is distributed in a spiral pattern. - View Dependent Claims (25, 26, 27, 28)
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29. A catheter comprising:
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a manifold portion including a first connector and a second connector; and a catheter body including, a proximal dual lumen portion including exactly an inner lumen and a surrounding outer lumen that share a common axis, the outer lumen surrounded by an outer wall having at least two side holes, the inner lumen in fluid communication with the first connector, the outer lumen in fluid communication with the second connector, and the at least two side holes consecutively aligned with each other along a line that is parallel with the common axis, where the inner lumen is surrounded by a proximal inner wall that is structured to withstand high-pressure injections; and a distal single lumen portion forming an extension of the inner lumen, the single lumen portion including a bend, a plurality of side holes, and a pigtail tip; wherein the catheter body includes a length of at least 110 centimeters.
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Specification