APPARATUS AND METHODS FOR TREATING OBSTRUCTIONS WITHIN BODY LUMENS
First Claim
1. An apparatus for treating a body lumen, comprising:
- an elongate tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends;
an expandable balloon comprising a proximal end secured to the tubular member distal end, and a distal end comprising an outlet, the balloon comprising an interior communicating with the first lumen and the balloon outlet;
an elongate member slidably disposed within the first lumen, the elongate member comprising a proximal end adjacent the tubular member proximal end, and a distal end extending from the balloon outlet; and
a sealing member on the elongate member distal end, the elongate member being movable between a first position wherein the sealing member is spaced from the balloon outlet such that fluid introduced through the first lumen passes through the balloon interior and out the balloon outlet, and a second position wherein the sealing member substantially seals the balloon outlet such that fluid introduced through the first lumen enters the balloon interior to expand the balloon.
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Accused Products
Abstract
An apparatus is provided that is operable in different modes to perform various functions for treating a body lumen. The apparatus includes a shaft including a proximal end, a distal end, a lumen extending therebetween, and a balloon on the distal end having an interior communicating with the lumen. The apparatus includes a valve on the distal end that selectively opens or closes an outlet communicating with the lumen. With the valve open, fluid introduced into the lumen exits the outlet into a body lumen. With the valve closed, fluid introduced into the lumen expands the balloon. The apparatus also includes an actuator for axially compressing the balloon, and a helical member extends between ends of the balloon interior that expands the balloon from a contracted condition to an expanded helical shape when the actuator is activated.
40 Citations
21 Claims
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1. An apparatus for treating a body lumen, comprising:
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an elongate tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends; an expandable balloon comprising a proximal end secured to the tubular member distal end, and a distal end comprising an outlet, the balloon comprising an interior communicating with the first lumen and the balloon outlet; an elongate member slidably disposed within the first lumen, the elongate member comprising a proximal end adjacent the tubular member proximal end, and a distal end extending from the balloon outlet; and a sealing member on the elongate member distal end, the elongate member being movable between a first position wherein the sealing member is spaced from the balloon outlet such that fluid introduced through the first lumen passes through the balloon interior and out the balloon outlet, and a second position wherein the sealing member substantially seals the balloon outlet such that fluid introduced through the first lumen enters the balloon interior to expand the balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for treating a body lumen, comprising:
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an outer tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends; an expandable balloon comprising a proximal end secured to the outer member distal end, and a distal end comprising an outlet, the balloon comprising an interior communicating with the first lumen and the balloon outlet; an inner member slidably disposed within the first lumen and having a cross-section smaller than the first lumen such that an annular lumen is defined between the outer and inner members between the proximal and distal ends of the outer member, the inner member comprising a proximal end adjacent the outer member proximal end, and a distal end extending from the balloon outlet; a sealing member on the inner member distal end, the inner member movable between a first position wherein the sealing member is spaced from the balloon outlet such that fluid introduced through the first lumen passes through the balloon interior and out the balloon outlet, and a second position wherein the sealing member substantially seals the balloon outlet such that fluid introduced through the first lumen enters the balloon interior to expand the balloon; and a helical member comprising a first end coupled to the outer member distal end and a second end coupled to the inner member distal end, the helical member extending helically around the inner member within the balloon interior, the inner member movable to a third position in which the inner member distal end is directed towards the outer member distal end to cause the helical member to expand radially outwardly, thereby expanding the balloon to an expanded helical shape. - View Dependent Claims (15, 16, 17)
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18. An apparatus for treating a body lumen, comprising:
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an outer tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends; an inner member slidably disposed within the first lumen and having a cross-section smaller than the first lumen such that an annular lumen is defined between the outer and inner members between the proximal and distal ends of the outer member, the inner member comprising a proximal end adjacent the outer member proximal end, and a distal end extending beyond the outer member distal end; an expandable balloon comprising a proximal end secured to the outer member distal end, and a distal end coupled to the inner member distal end, the balloon comprising an interior communicating with the first lumen and the balloon outlet; a source of inflation media communicating with the first lumen for delivering inflation media through the first lumen into the balloon interior for expanding the balloon radially outwardly from a contracted condition to a cylindrical expanded condition; and a helical member comprising a first end coupled to the outer member distal end and a second end coupled to the inner member distal end, the helical member extending helically around the inner member within the balloon interior, the inner member movable from a first distal position in which the helical member is disposed adjacent the inner member and the balloon is in the contracted condition to a second proximal position that causes the helical member to compress axially and expand radially outwardly, thereby compressing axially and expanding radially the balloon to an expanded helical shape. - View Dependent Claims (19, 20)
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21. An apparatus for treating a body lumen, comprising:
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an outer tubular member including a proximal end, a distal end sized for introduction into a body lumen, and a first lumen extending between the proximal and distal ends; an inner member slidably disposed within the first lumen and comprising a proximal end adjacent the outer member proximal end, and a distal end extending beyond the outer member distal end; an expandable balloon comprising a proximal end secured to the outer member distal end, and a distal end coupled to the inner member distal end, the balloon comprising an interior communicating with the first lumen and the balloon outlet; and a helical member comprising a first end coupled to the outer member distal end and a second end coupled to the inner member distal end, the helical member extending helically around the inner member within the balloon interior, the inner member movable from a first distal position in which the helical member is disposed adjacent the inner member and the balloon is in the contracted condition to a second proximal position that causes the helical member to compress axially and expand radially outwardly, thereby compressing axially and expanding radially the balloon to an expanded helical shape, the helical member comprising first and second regions between the first and second ends, the first region expandable to a diameter greater than the second region such that the balloon defines first and second helical regions in the expanded helical shape, the first helical region having a diameter greater than the second helical region.
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Specification