Catheter having radially expandable main body
First Claim
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1. Apparatus suitable for removing emboli from a vessel, the apparatus comprising:
- a catheter having a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough the catheter having a fluid impermeable cover; and
an outer sheath disposed to slide longitudinally along the catheter;
wherein the main body has a contracted delivery diameter when disposed within the outer sheath and a radially expanded deployed diameter when deployed from the outer sheath.
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Abstract
Apparatus for occluding a vessel and enhancing blood flow within a catheter are provided, wherein a catheter comprises a multi-section self-expanding wire weave forming a radially expandable body and an occlusive distal section, covered with an elastomeric polymeric coating, and disposed within an outer sheath. Methods of using the apparatus of the present invention to remove emboli also are provided.
254 Citations
20 Claims
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1. Apparatus suitable for removing emboli from a vessel, the apparatus comprising:
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a catheter having a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough the catheter having a fluid impermeable cover; and
an outer sheath disposed to slide longitudinally along the catheter;
wherein the main body has a contracted delivery diameter when disposed within the outer sheath and a radially expanded deployed diameter when deployed from the outer sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for enhancing flow within a catheter, the method comprising:
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providing a catheter disposed in a contracted state within an outer sheath, the catheter comprising a proximal section configured to extend outside a patient, a hemostatic port disposed on the proximal section, an occlusive distal section, a main body extending therebetween, and a lumen extending therethrough, the catheter having a fluid impermeable cover;
inserting the catheter and outer sheath into a patient'"'"'s vasculature to a desired location;
retracting the outer sheath proximally to deploy the occlusive distal section; and
further retracting the outer sheath proximally to cause radial expansion of the main body. - View Dependent Claims (19, 20)
performing an interventional procedure; and
aspirating emboli generated during the interventional procedure into the lumen of the catheter.
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20. The method of claim 19 further comprising:
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at the conclusion of the interventional procedure, advancing the outer sheath to contract the main body and the occlusive distal section; and
withdrawing the catheter and outer sheath from the patient'"'"'s vasculature.
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Specification