Embolism prevention device
First Claim
1. A stent delivery system for use in a fluid conduit in a body, the conduit having an interior wall, the system comprising:
- a catheter configured to be placed into a designated region of the conduit;
a pre-formed stent configured to be mounted exterior to the catheter and moved into the designated region of the conduit by the catheter and placed upon the interior wall;
a conduit blocking mechanism mounted on the catheter distal from the stent and configured to block the conduit while the stent is being placed upon the interior wall;
wherein, the catheter has a fluid bypass channel that permits fluid to bypass the designated region of the conduit while the conduit blocking mechanism blocks the conduit, and an evacuation apparatus that removes embolism-forming particles from the conduit after the stent is placed upon the interior wall and while the conduit blocking mechanism blocks the conduit.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for preventing embolisms resulting from an operation being performed in a body conduit by an instrument. The apparatus includes a selectively actuable conduit blocking mechanism that is actuated prior to performing the operation to thereby block the conduit while the operation is being performed upon an interior wall of the conduit, wherein the conduit blocking mechanism is de-actuated subsequent to the operation being performed. A transporting mechanism is movable within the conduit. The conduit blocking mechanism and the instrument are disposed at separate positions upon the transporting mechanism. The apparatus may be used for stent delivery, vessel predilation, or other operations.
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Citations
16 Claims
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1. A stent delivery system for use in a fluid conduit in a body, the conduit having an interior wall, the system comprising:
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a catheter configured to be placed into a designated region of the conduit;
a pre-formed stent configured to be mounted exterior to the catheter and moved into the designated region of the conduit by the catheter and placed upon the interior wall;
a conduit blocking mechanism mounted on the catheter distal from the stent and configured to block the conduit while the stent is being placed upon the interior wall;
wherein, the catheter has a fluid bypass channel that permits fluid to bypass the designated region of the conduit while the conduit blocking mechanism blocks the conduit, and an evacuation apparatus that removes embolism-forming particles from the conduit after the stent is placed upon the interior wall and while the conduit blocking mechanism blocks the conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A dilation system for use in a fluid conduit in a body, the conduit having an interior wall, the system comprising:
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a catheter configured to be placed into a designated region of the conduit;
a conduit dilation mechanism mounted on the catheter and configured to be moved into the designated region of the conduit by the catheter to selectively contact the interior wall; and
a conduit blocking mechanism mounted on the catheter and configured to block the conduit while the conduit dilation mechanism is contacting the interior wall, wherein the conduit dilation mechanism comprises a flexible membrane, including a first portion and a second portion, wherein the portions are formed with different levels of compliance for selective inflation; and
an evacuation apparatus that removes embolism-forming particles from the conduit after the conduit dilation mechanism contacts the interior wall and while the conduit blocking mechanism blocks the conduit. - View Dependent Claims (14, 15)
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16. A dilation system for use in a fluid conduit in a body, the conduit having an interior wall, the system comprising:
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a catheter configured to be placed into a designated region of the conduit;
a conduit dilation mechanism mounted on the catheter mid configured to be moved into the designated region of the conduit by the catheter to selectively contact the interior wall; and
a conduit blocking mechanism mounted on the catheter and configured to block the conduit while the conduit dilation system is contacting the interior wall, wherein the conduit dilation mechanism and the conduit blocking mechanism are different portions of a single flexible membrane; and
an evacuation apparatus that removes embolism-forming particles from the conduit after the conduit dilation mechanism contacts the interior wall and while the conduit blocking mechanism blocks the conduit.
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Specification