ApplicationNo. 814141 filed on 12/30/1991
US Classes:606/200, With emboli trap or filter606/159Blood vessel, duct or teat cutter, scrapper or abrader
ExaminersPrimary: Thaler, Michael H.
Attorney, Agent or Firm
Foreign Patent References
International ClassA61M 025/00
AbstractA filter useful in tubular organs of the human body, intended primarily for endovascular use during surgical procedures for removal of plaque and other treatment of stenoses in arteries, in order to entrap particles of plaque or other materials freed from the interior wall of an artery while permitting continued flow of blood through the artery during the procedure of treating the stenosis. Several filter elements are fastened in apart-spaced relationship with one another along a flexible elongate member and are large enough to require the entire flow of blood through the artery to pass through the filter elements. An open-mouthed tubular stocking of porous filter material encloses the filter elements and supports the periphery of each filter element. Successive filter elements, progressing in the direction of blood flow, pass only progressively smaller particles. In a preferred embodiment, the mouth of the stocking can be closed to retain particles of material within the filter as it is withdrawn from the artery after repair of a stenosis.
Field of SearchWith emboli trap or filter
Blood vessel, duct or teat cutter, scrapper or abrader
Expanding dilator (e.g., expanding arm, etc.)
With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue
Devices placed entirely within body and means used therewith (e.g., magnetic implant locator)