SYSTEMS AND METHODS FOR ANALYSIS AND TREATMENT OF A BODY LUMEN
First Claim
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1. A catheter for placement within a body lumen, the catheter comprising:
- a flexible conduit that is elongated along a longitudinal axis, the flexible conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide positioned along the flexible conduit, the at least one delivery waveguide and the at least one collection waveguide constructed and arranged to transmit radiation at a wavelength in a range of about 250 to 2500 nanometers; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide located within the balloon.
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Abstract
In a system and method for analyzing and treating a body lumen, a lumen-expanding balloon catheter with integrated one or more delivery waveguides and one or more collection waveguides is used to perform optical analysis of the tissues surrounding the lumen during expansion. The catheter can comprise an angioplasty catheter with integrated delivery waveguides and collection waveguides to perform spectroscopy of a stenotic plaque during angioplasty.
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Citations
122 Claims
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1. A catheter for placement within a body lumen, the catheter comprising:
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a flexible conduit that is elongated along a longitudinal axis, the flexible conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide positioned along the flexible conduit, the at least one delivery waveguide and the at least one collection waveguide constructed and arranged to transmit radiation at a wavelength in a range of about 250 to 2500 nanometers; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide located within the balloon. - 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, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A system for probing and treating a body lumen comprising:
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a flexible conduit that is elongated along a longitudinal axis suitable for insertion into a body lumen, the conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide integrated with the flexible conduit;
at least one radiation source connected to a transmission input of the at least one delivery waveguide, the radiation source constructed and arranged to provide radiation at a wavelength in a range of about 250 to 2500 nanometers;
at least one optical detector connected to a transmission output of the at least one collection waveguide; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide located within the balloon. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A catheter for placement within a body lumen, the catheter comprising:
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a flexible conduit that is elongated along a longitudinal axis, the flexible conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide positioned along the flexible conduit; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide located within the balloon, wherein the maximum outer diameter of the catheter, including the flexible conduit, the at least one delivery waveguide, the at least one collection waveguide and the balloon is less than about 1.5 millimeters when the balloon is uninflated. - View Dependent Claims (59, 60, 61, 62, 63, 64)
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65. A method for providing analysis and treatment of a body lumen, the method comprising:
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inserting into a body lumen a catheter including a flexible conduit, a lumen-expanding balloon, at least one delivery waveguide and at least one collection waveguide, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide being located within the balloon;
maneuvering the conduit into a designated region of the body lumen designated for treatment or analysis;
expanding the balloon in the designated region of the body lumen;
executing spectroscopic analysis of the designated region of the body lumen using radiation at a wavelength in a range of about 250 to 2500 nanometers by radiating the designated region of the body lumen with the radiation that is supplied at the transmission output of the at least one delivery waveguide, the supplied radiation passing through the balloon where it is incident on the designated region of the body lumen, and wherein radiation is returned through the balloon to the transmission input of the at least one collection waveguide. - View Dependent Claims (66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100)
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101. A method of forming a catheter for placement within a body lumen comprising:
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providing a flexible conduit that is elongated along a longitudinal axis suitable for insertion into a body lumen, the flexible conduit having a proximal end and a distal end;
providing at least one delivery waveguide and at least one collection waveguide along the flexible conduit, the at least one delivery waveguide and the at least one collection waveguide constructed and arranged to transmit radiation at a wavelength in a range of about 250 to 2500 nanometers; and
providing a lumen-expanding inflatable balloon about a portion of the conduit so that a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide are located within the balloon. - View Dependent Claims (102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117)
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118. A catheter for placement within a body lumen, the catheter comprising:
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a flexible conduit that is elongated along a longitudinal axis, the flexible conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide positioned along the flexible conduit, the at least one delivery waveguide and the at least one collection waveguide constructed and arranged to transmit radiation at a wavelength in a range of about 250 to 2500 nanometers; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide being positioned along an outer surface of the balloon. - View Dependent Claims (119, 120)
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121. A catheter for placement within a body lumen, the catheter comprising:
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a flexible conduit that is elongated along a longitudinal axis, the flexible conduit having a proximal end and a distal end;
at least one delivery waveguide and at least one collection waveguide positioned along the flexible conduit, the at least one delivery waveguide and the at least one collection waveguide constructed and arranged to transmit radiation at a wavelength in a range of about 250 to 2500 nanometers; and
a lumen-expanding inflatable balloon disposed about a portion of the conduit, a transmission output of the at least one delivery waveguide and a transmission input of the at least one collection waveguide being mounted to an inner surface of the balloon. - View Dependent Claims (122)
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Specification