Catheter having a variable length balloon and method of using the same
First Claim
1. A balloon catheter assembly including a catheter shaft having a distal portion terminating at a distal end, a balloon fluidly connected to the distal end of the catheter shaft, and an adjustment device disposed along the distal portion of the catheter shaft for adjusting effective balloon inflation length, the adjustment device comprising:
- an outer sleeve generally having a distal end co-axially received over the distal portion of the catheter shaft, at least a portion of the outer sleeve being slidable relative to the distal portion of the catheter shaft, the distal end of the outer sleeve being configured to restrict inflation of the balloon proximal the distal end of the outer sleeve; and
attachment means for selectively securing at least a portion of the outer sleeve to the distal portion of the catheter shaft such that the distal end of the outer sleeve is selectively maintained relative to the balloon to define a desired effective balloon inflation length, the attachment means including an enlarged shaft portion proximate the balloon and a locking sleeve generally co-axially received over the outer sleeve, the locking sleeve configured to selectively secure the outer sleeve to the enlarged shaft portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A variable length balloon catheter is provided. The balloon catheter includes a catheter shaft having a distal portion, a balloon and an adjustment device. The balloon is in fluid communication with a distal end of the catheter shaft. The adjustment device includes an outer sleeve and an attachment structure. The outer sleeve is configured to be generally co-axially received over the distal portion of the catheter shaft and includes a distal end configured to restrict inflation proximal the distal end. Further, the outer sleeve is configured such that at least a portion of the outer sleeve is slidable relative to the distal portion of the catheter shaft such that a distal end of the outer sleeve relative to the balloon can be varied. The attachment structure is similarly disposed at the distal portion of the catheter shaft and is configured to selectively secure at least a portion of the outer sleeve to the distal portion of the catheter shaft such that the outer sleeve will not move upon inflation of the balloon.
308 Citations
25 Claims
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1. A balloon catheter assembly including a catheter shaft having a distal portion terminating at a distal end, a balloon fluidly connected to the distal end of the catheter shaft, and an adjustment device disposed along the distal portion of the catheter shaft for adjusting effective balloon inflation length, the adjustment device comprising:
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an outer sleeve generally having a distal end co-axially received over the distal portion of the catheter shaft, at least a portion of the outer sleeve being slidable relative to the distal portion of the catheter shaft, the distal end of the outer sleeve being configured to restrict inflation of the balloon proximal the distal end of the outer sleeve; and attachment means for selectively securing at least a portion of the outer sleeve to the distal portion of the catheter shaft such that the distal end of the outer sleeve is selectively maintained relative to the balloon to define a desired effective balloon inflation length, the attachment means including an enlarged shaft portion proximate the balloon and a locking sleeve generally co-axially received over the outer sleeve, the locking sleeve configured to selectively secure the outer sleeve to the enlarged shaft portion. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9)
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7. A balloon catheter assembly including a catheter shaft having a distal portion terminating at a distal end, a balloon fluidly connected to the distal end of the catheter shaft, and an adjustment device disposed along the distal portion of the catheter shaft for adjusting effective balloon inflation length, the adjustment device comprising:
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an outer sleeve generally having a distal end co-axially received over the distal portion of the catheter shaft, at least a portion of the outer sleeve being slidable relative to the distal portion of the catheter shaft, the distal end of the outer sleeve being configured to restrict inflation of the balloon proximal the distal end of the outer sleeve; and attachment means for selectively securing at least a portion of the outer sleeve to the distal portion of the catheter shaft such that the distal end of the outer sleeve is selectively maintained relative to the balloon to define a desired effective balloon inflation length, the attachment means including a rib attached to the distal portion of the catheter shaft proximal the balloon, and a locking sleeve generally co-axially received over the outer sleeve, wherein the locking sleeve is configured to selectively secure the outer sleeve to the rib. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An improved balloon catheter including a balloon fluidly connected to a distal end of a catheter shaft, the improvement comprising:
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an outer sleeve generally co-axially received over a distal portion of the catheter shaft, the outer sleeve including a proximal end, an intermediate portion and a distal end sized to restrict balloon inflation proximal the distal end, and at least a portion of the intermediate portion being slidable relative to the catheter shaft for an adjusting effective balloon inflation length; and attachment means positioned proximate a distal end of the catheter shaft for selectively securing the distal end of the outer sleeve to the catheter shaft, the attachment means including an enlarged shaft portion proximate the balloon and a locking sleeve generally co-axially received over the outer sleeve, the locking sleeve configured to selectively secure the outer sleeve to the enlarged shaft portion. - View Dependent Claims (17)
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18. An improved balloon catheter including a balloon fluidly connected to a distal end of a catheter shaft, the improvement comprising:
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an outer sleeve generally co-axially received over a distal portion of the catheter shaft, the outer sleeve including a proximal end, an intermediate portion and a distal end sized to restrict balloon inflation proximal the distal end, and at least a portion of the intermediate portion being slidable relative to the catheter shaft for adjusting effective balloon inflation length; and attachment means positioned proximate a distal end of the catheter shaft for selectively securing the distal end of the outer sleeve to the catheter shaft, the attachment means including a rib attached to the distal portion of the catheter shaft proximal the balloon, and a locking sleeve configured to be generally co-axially received over the outer sleeve and configured to selectively secure the outer sleeve to the rib. - View Dependent Claims (19, 20)
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21. A method of using a variable length balloon catheter, the method comprising:
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providing a catheter shaft including a distal portion, and having a balloon fluidly connected to a distal end thereof; providing an adjustment device including; an outer sleeve generally co-axially received over the distal portion of the catheter shaft and including a sleeve distal end for restricting balloon inflation proximal the sleeve distal end; attachment means for selectively securing the outer sleeve to the distal portion of the catheter shaft, the attachment means including an enlarged shaft portion proximate the balloon, and a locking sleeve generally co-axially received over the outer sleeve, the locking sleeve configured to selectively secure the outer sleeve to the enlarged shaft portion; determining a desired balloon inflation length; sliding the outer sleeve along the distal portion of the catheter shaft and a portion of the balloon such that the sleeve distal end defines an effective balloon inflation length approximating the desired balloon inflation length; securing the outer sleeve to the distal portion of the catheter shaft by sliding the locking sleeve over the outer sleeve and the enlarged shaft portion until the outer sleeve is secured between the locking sleeve and the enlarged shaft portion; and directing the balloon to a treatment site. - View Dependent Claims (22, 23, 24, 25)
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Specification