Mechanical pump for removal of fragmented matter and methods of manufacture and use
First Claim
1. Apparatus for transporting material between a target site in a lumen of a body and a location external to the body, the apparatus comprising:
- an impeller including an elongate flexible tube defining a lumen, a coiled rotor element disposed over an outer surface of the tube, and a jacket securing the coiled rotor element to the outer surface of the tube;
means for introducing the impeller to the target site; and
means for rotating the coiled rotor element within the body lumen to advance the material proximally away from the target site.
7 Assignments
0 Petitions
Accused Products
Abstract
Material transport catheters and methods for their use rely on rotation of an impeller within a catheter body and a clearing element for preventing buildup of materials at the opening of the catheter body. The impeller preferably comprises an inner tube or shaft having a helical rotor fainted over an outer surface thereof. The clearing element may comprise a free end of a structure near the distal end of the catheter body for disrupting clot, wherein the free end of the structure extends into the distal opening of the catheter body to break up materials as the impeller is rotated. Alternatively, the clearing element may comprise a cutting member disposed at the distal opening of the catheter body.
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Citations
22 Claims
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1. Apparatus for transporting material between a target site in a lumen of a body and a location external to the body, the apparatus comprising:
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an impeller including an elongate flexible tube defining a lumen, a coiled rotor element disposed over an outer surface of the tube, and a jacket securing the coiled rotor element to the outer surface of the tube; means for introducing the impeller to the target site; and means for rotating the coiled rotor element within the body lumen to advance the material proximally away from the target site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for transporting material between a target site in a lumen of a body and a location external to the body, the method comprising:
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introducing a distal end of an impeller to the target site, the impeller including an elongate, hollow, flexible tube, a coiled rotor element disposed over an outer surface of the tube, and a jacket securing the coiled rotor element to the outer surface of the tube; and rotating the coiled rotor element within the body lumen to advance the material proximally away from the target site. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification