Mechanical thrombus maceration device
First Claim
1. A mechanical thrombus maceration device comprising:
- a. an elongate, flexible shaft having proximal and distal ends, the shaft being adapted to be guided along a vascular path and being rotatable within a vascular channel having a vascular wall;
b. a plurality of rotors affixed to the shaft for rotation therewith, the rotors being spaced apart from one another along the shaft;
c. drive means for rapidly rotating the shaft; and
d. a rotor housing enclosing at least one of the rotors and within which said rotor rotates, the housing comprising a generally cylindrical wall substantially surrounding said rotor.
8 Assignments
0 Petitions
Accused Products
Abstract
In one embodiment, the present invention provides a mechanical thrombus maceration device which includes a flexible shaft adapted to be guided along a vascular path and rotated within a vascular channel; a rotor affixed to the shaft adjacent the distal end thereof for rotation therewith; drive means for rotating the shaft; and a rotor housing within which the rotor rotates. The rotor housing of this embodiment comprises a generally cylindrical wall substantially surrounding the rotor and having at least one port formed therein, the port or ports being positioned about the housing such that when a fluid (e.g. blood) is ejected through the ports within a vascular channel, the housing will tend to deflect toward one side of the vascular channel to permit the device to be steered during deployment. In another embodiment of the invention, the device includes an elongate, flexible shaft adapted to be guided along a vascular path and which is rotatable within a vascular channel; a plurality of rotors spaced from one another along the shaft and attached to the shaft for rotation therewith; drive means for rotating the shaft; and a rotor housing enclosing at least one of the rotors.
340 Citations
18 Claims
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1. A mechanical thrombus maceration device comprising:
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a. an elongate, flexible shaft having proximal and distal ends, the shaft being adapted to be guided along a vascular path and being rotatable within a vascular channel having a vascular wall; b. a plurality of rotors affixed to the shaft for rotation therewith, the rotors being spaced apart from one another along the shaft; c. drive means for rapidly rotating the shaft; and d. a rotor housing enclosing at least one of the rotors and within which said rotor rotates, the housing comprising a generally cylindrical wall substantially surrounding said rotor. - View Dependent Claims (2, 3, 4, 5)
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6. A mechanical thrombus maceration device comprising:
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a. an elongate, flexible shaft having proximal and distal ends, the shaft being adapted to be guided along a vascular path and being rotatable within a vascular channel having a vascular wall; b. a rotor affixed to the shaft adjacent the distal end thereof for rotation therewith; c. drive means for rapidly rotating the shaft; d. a rotor housing carried about the rotor and within which the rotor rotates, the housing comprising a generally cylindrical wall substantially surrounding the rotor and having at least one discharge port formed therein for discharging fluid out of the housing when the rotor is rotated, the port being spaced proximally of the rotor; and e. fluid directing means associated with the discharge port for directing fluid from the discharge port back toward the rotor. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A mechanical thrombus maceration device comprising:
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a. an elongate, flexible shaft having proximal and distal ends, the shaft being adapted to be guided along a vascular path and being rotatable within a vascular channel having a vascular wall; b. a rotor affixed to the shaft adjacent the distal end thereof for rotation therewith; c. drive means for rapidly rotating the shaft; and d. a rotor housing carried about the rotor and within which the rotor rotates, the housing comprising a generally cylindrical wall substantially surrounding the rotor and having at least one port formed therein, the surface area of the port or ports being distributed unevenly about the circumference of the housing such that when a fluid is ejected through the ports within a vascular channel, the housing will tend to deflect toward one side of the vascular channel to permit the device to be steered during deployment thereof within a patient'"'"'s vascular system. - View Dependent Claims (16, 17, 18)
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Specification