Apparatus and method for aspirating intravascular, pulmonary and cardiac obstructions
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United States of America Patent
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Dec 19, 1995
Issued Date -
N/A
app pub date -
Jan 5, 1994
filing date -
Nov 4, 1993
priority date (Note) -
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Abstract
Disclosed is an apparatus and technique for aspirating substances partially or completely occluding blood vessels or chambers of the heart. The aspirator assembly comprises a catheter assembly and a suction member for aspirating substances through the catheter. The catheter assembly comprises a catheter which travels over a guidewire. Exemplary suction members used for aspirating include a syringe or a vacuum reservoir. The method of treating the intravascular site comprises the steps of advancing a catheter assembly through a patient's vasculature until a distal end of the catheter assembly reaches an area close to the site, and aspirating occluding substances in the vicinity of the site through the distal end of the catheter assembly. The method may also include the additional steps of introducing medication through the catheter, and pulverizing the occlusion or any of its residue, prior to aspirating the occluding substances.
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