Apparatus and methods for treating obstructions within body lumens
First Claim
1. An apparatus for treating a body lumen, comprising:
- an outer member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal end and an outlet in the distal end;
an inner member slidably disposed within the first lumen, the inner member comprising a proximal end adjacent the outer member proximal end, and a distal end portion extending distally beyond the outer member distal end;
a sealing member fixedly connected to the inner member distal end portion comprising one or more passages within the sealing member between an outer surface of the sealing member and an outer surface of the inner member; and
an expandable balloon comprising a distal end secured to the inner member distal end portion distally beyond the sealing member, and a proximal end secured to the sealing member such that an interior of the balloon is in fluid communication with the one or more passages;
the inner member being movable between a first position wherein the sealing member is spaced from the outlet of the outer member such that fluid introduced through the first lumen passes through the outlet into a region around the apparatus, and a second position wherein the sealing member substantially seals the outlet such that fluid introduced through the first lumen passes through the one or more passages and enters the balloon interior to expand the balloon.
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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.
214 Citations
24 Claims
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1. An apparatus for treating a body lumen, comprising:
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an outer member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal end and an outlet in the distal end; an inner member slidably disposed within the first lumen, the inner member comprising a proximal end adjacent the outer member proximal end, and a distal end portion extending distally beyond the outer member distal end; a sealing member fixedly connected to the inner member distal end portion comprising one or more passages within the sealing member between an outer surface of the sealing member and an outer surface of the inner member; and an expandable balloon comprising a distal end secured to the inner member distal end portion distally beyond the sealing member, and a proximal end secured to the sealing member such that an interior of the balloon is in fluid communication with the one or more passages; the inner member being movable between a first position wherein the sealing member is spaced from the outlet of the outer member such that fluid introduced through the first lumen passes through the outlet into a region around the apparatus, and a second position wherein the sealing member substantially seals the outlet such that fluid introduced through the first lumen passes through the one or more passages and enters the balloon interior to expand the balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for treating a body lumen, comprising:
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an outer member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal end and an outlet in the distal end; an inner member slidably disposed within the first lumen, the inner member comprising a proximal end adjacent the outer member proximal end, and a distal end portion extending distally beyond the outer member distal end; a sealing member fixedly connected to the inner member distal end portion comprising one or more passages within the sealing member between an outer surface of the sealing member and an outer surface of the inner member; and an expandable balloon comprising a distal end secured to the inner member distal end portion distally beyond the sealing member, and a proximal end secured to the sealing member such that an interior of the balloon is in fluid communication with the one or more passages; a handle on the outer member proximal end; and an actuator on the handle coupled to the inner member for directing the inner member between a distal position wherein the sealing member is spaced from the outlet such that the first lumen communicates with a region around the apparatus, and a proximal position wherein the sealing member substantially seals the outlet such that fluid introduced through the first lumen passes through the one or more passages and enters the balloon interior to expand the balloon. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus for treating a body lumen, comprising:
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an outer member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal end and an outlet in the distal end; an inner member slidably disposed within the first lumen, the inner member comprising a proximal end, and a distal portion extending distally beyond the outer member distal end; a treatment element on the distal portion; a sealing member fixedly connected to the distal portion proximal to the treatment element, the sealing member having one or more passages within the sealing member between an outer surface of the sealing member and an outer surface of the inner member; wherein the treatment element is secured to the sealing member such that the sealing member is in fluid communication with the treating element; a handle on the outer member proximal end; and an actuator on the handle coupled to the inner member for directing the inner member between a distal position wherein the sealing member is spaced from the outlet such that fluid introduced through the first lumen passes through the outlet into a region around the apparatus, and a proximal position wherein the sealing member substantially seals the outlet. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification