APPARATUS AND METHODS FOR TREATING PSEUDOANEURYSMS
First Claim
1. An apparatus for treating a pseudoaneurysm or other body cavity, comprising:
- an elongate body comprising a proximal end, a distal end sized for introduction through tissue into a pseudoaneurysm or other body cavity, and a lumen communicating with an outlet on the distal end; and
a plurality of particles within the lumen and dischargeable through the outlet into a pseudoaneurysm or other body cavity, the particles configured for absorbing fluid within the pseudoaneurysm or other body cavity to cause the particles to expand to substantially fill the pseudoaneurysm or other body cavity.
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Accused Products
Abstract
Apparatus and methods are provided for treating pseudoaneurysms using freeze-dried hydrogel particles that expand and/or absorb fluid within a pseudoaneurysm. An apparatus includes an elongate tubular member including a proximal end, a distal end sized for introduction through tissue into a pseudoaneurysm or other body cavity, and a lumen communicating with an outlet on the distal end. The particles are provided within the lumen and dischargeable through the outlet, e.g., using a plunger or other actuator. The apparatus may include one or more of a bled-back channel, flow sensor, pressure sensor, and markers for monitoring the distal end during introduction into the pseudoaneurysm.
116 Citations
37 Claims
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1. An apparatus for treating a pseudoaneurysm or other body cavity, comprising:
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an elongate body comprising a proximal end, a distal end sized for introduction through tissue into a pseudoaneurysm or other body cavity, and a lumen communicating with an outlet on the distal end; and a plurality of particles within the lumen and dischargeable through the outlet into a pseudoaneurysm or other body cavity, the particles configured for absorbing fluid within the pseudoaneurysm or other body cavity to cause the particles to expand to substantially fill the pseudoaneurysm or other body cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15)
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10. (canceled)
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11. (canceled)
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16. An apparatus for treating a pseudoaneurysm or other body cavity, comprising:
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an elongate body comprising a proximal end, a distal end sized for introduction into a pseudoaneurysm or other body cavity, a delivery lumen extending between the proximal and distal ends, and a bleed-back channel extending between the distal end a proximal opening; a plurality of particles within the delivery lumen and dischargeable through an outlet at the distal end, the particles comprising a xerogel that absorbs fluid within the pseudoaneurysm or other body cavity to cause the particles to hydrate into a hydrogel that expands to substantially fill the pseudoaneurysm or other body cavity; and an actuator operable from the proximal end for discharging the particles from the outlet into a pseudoaneurysm or other body cavity.
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17-21. -21. (canceled)
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22. A method for treating a pseudoaneurysm within a patient'"'"'s body, comprising:
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percutaneously inserting a distal end of a delivery device into tissue having the pseudoaneurysm therein; inserting the distal end of the delivery device into the pseudoaneurysm; delivering a plurality of particles from the delivery device into the pseudoaneurysm, the particles absorbing fluid within the pseudoaneurysm, thereby causing the particles to expand and substantially fill the pseudoaneurysm; and removing the delivery device from the patient'"'"'s body after the particles are delivered into the pseudoaneurysm. - View Dependent Claims (23, 24, 25, 26)
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27. A method for treating a pseudoaneurysm communicating with a vessel, comprising:
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introducing a distal end of a delivery device carrying xerogel particles into tissue adjacent the pseudoaneurysm; monitoring introduction of the distal end using an element on the distal end until the element provides an indication that the distal end is within the pseudoaneurysm; and delivering the particles from the delivery device into the pseudoaneurysm, the particles absorbing fluid within the pseudoaneurysm, thereby causing the particles to hydrate and expand to form a hydrogel that substantially fills the pseudoaneurysm. - View Dependent Claims (28, 30)
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29. (canceled)
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31-34. -34. (canceled)
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35. A method for treating a pseudoaneurysm within a patient'"'"'s body, comprising:
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percutaneously inserting a distal end of a delivery device into tissue having the pseudoaneurysm therein; inserting the distal end of the delivery device into the pseudoaneurysm; delivering xerogel material from the delivery device into the pseudoaneurysm, the xerogel material absorbing fluid within the pseudoaneurysm, thereby hydrating and expanding to form a hydrogel that substantially fills the pseudoaneurysm; and removing the delivery device from the patient'"'"'s body after the xerogel material is delivered into the pseudoaneurysm. - View Dependent Claims (36, 37)
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Specification