Apparatus and methods for treating obstructions within body lumens
First Claim
1. A method for treating a body lumen of a patient, the method comprising:
- receiving an apparatus comprising;
an outer member including a first lumen extending between a proximal end and an outlet in a distal end of the outer member,an inner member slidable within the first lumen, the inner member including a distal portion extending beyond the outlet of the outer member, the inner member comprising a second lumen,a treatment element on the distal portion, anda sealing member at least partially proximal to the treatment element on the distal portion, the sealing member being in direct contact with the treatment element, the sealing member having one or more passages in fluid communication with an interior of the treatment element, and the sealing member being sized to at least partially enter the first lumen of the outer member such that the sealing member may substantially seal the outlet of the outer member;
introducing the distal end of the outer member into the body lumen with the inner member in a proximal position such that the sealing member substantially seals the outlet of the outer member;
actuating a proximal end of the apparatus to slide the inner member to a distal position, such that the sealing member is directed away from the outlet of the outer member;
delivering fluid through the first lumen such that some of the fluid exits through the outlet of the outer member into the body lumen and some of the fluid is delivered through the one or more passages in the sealing member directly into the treatment element; and
performing a procedure within the body lumen using the treatment element,wherein the sealing member is configured to slide axially to partially obstruct the outlet of the outer member.
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Accused Products
Abstract
Apparatus and methods are provided for delivering fluid into a body lumen during a medical procedure. A distal end of an apparatus may be introduced into a body lumen, and a valve on the distal end may be opened to deliver fluid through a first lumen into the body lumen, e.g., contrast and/or other diagnostic or therapeutic agents. The valve may be closed, and a procedure may be performed within the body lumen, e.g., using a treatment element carried on the distal end. For example, the treatment element may include a balloon that may be inflated when fluid is delivered through the first lumen with the valve closed. Optionally, a prosthesis, energy source, drug platform, and the like may be carried by the balloon for treating the body lumen. In various embodiments, the valve may be located proximal or distal to the treatment element.
247 Citations
24 Claims
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1. A method for treating a body lumen of a patient, the method comprising:
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receiving an apparatus comprising; an outer member including a first lumen extending between a proximal end and an outlet in a distal end of the outer member, an inner member slidable within the first lumen, the inner member including a distal portion extending beyond the outlet of the outer member, the inner member comprising a second lumen, a treatment element on the distal portion, and a sealing member at least partially proximal to the treatment element on the distal portion, the sealing member being in direct contact with the treatment element, the sealing member having one or more passages in fluid communication with an interior of the treatment element, and the sealing member being sized to at least partially enter the first lumen of the outer member such that the sealing member may substantially seal the outlet of the outer member; introducing the distal end of the outer member into the body lumen with the inner member in a proximal position such that the sealing member substantially seals the outlet of the outer member; actuating a proximal end of the apparatus to slide the inner member to a distal position, such that the sealing member is directed away from the outlet of the outer member; delivering fluid through the first lumen such that some of the fluid exits through the outlet of the outer member into the body lumen and some of the fluid is delivered through the one or more passages in the sealing member directly into the treatment element; and performing a procedure within the body lumen using the treatment element, wherein the sealing member is configured to slide axially to partially obstruct the outlet of the outer member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for treating a body lumen of a patient, the method comprising:
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receiving a balloon apparatus comprising; an outer member including a first lumen extending between a proximal end and an outlet in a distal end of the outer member, an inner member slidable within the first lumen, the inner member comprising a second lumen, a balloon attached to a distal end of the inner member distally beyond the distal end of the outer member, and a sealing member on the inner member at least partially proximal to the balloon, the sealing member being in direct contact with the balloon, the sealing member having one or more passages in fluid communication with an interior of the balloon, and the sealing member being sized to at least partially enter the first lumen of the outer member such that the sealing member may substantially seal the outlet of the outer member;
introducing the distal end of the outer member into the body lumen with the balloon in a contracted condition and the inner member in a proximal position such that the sealing member substantially seals the outlet of the outer member;actuating a proximal end of the apparatus to slide the inner member to a distal position, such that the sealing member is directed away from the outlet of the outer member; delivering fluid through the first lumen such that some of the fluid exits through the outlet of the outer member into the body lumen and some of the fluid is delivered through the one or more passages in the sealing member directly into the interior of the balloon; sliding the inner member towards the proximal position to substantially seal the outlet of the outer member with the sealing member such that the one or more passages in the sealing member communicate directly between the first lumen and the interior of the balloon; and delivering the fluid through the first lumen with the outlet substantially sealed, thereby delivering fluid through the one or more passages of the sealing member into the interior of the balloon to expand the balloon from the contracted condition to an enlarged condition, wherein the sealing member is configured to slide axially to partially obstruct the outlet of the outer member. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification