| 摘要 |
A method of removing material from a body lumen in a patient in need of such removal, comprising advancing a catheter-mounted device having a distal material removal tip including a hollow housing and a member rotatable therewithin, rotating the rotatable member, drawing said material into said housing, shearing said material in said housing between relatively rotating shearing members to reduce the clogging propensity of said material, and removing said sheared material from within said housing as said material removal tip is advanced through said vessel. In another embodiment, the rotatable member of the invention includes grinding means for grinding the material prior to the contact of the material with the shearing member. An article of manufacture that includes packaging material and instructions in the method of the invention contained within the packaging material is also taught.
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