Intravascular catheter having combined imaging abrasion head

Details Intravascular catheter having combined imaging abrasion head Intravascular catheter having combined imaging abrasion head

1990-05-21

1992-03-31

Jaworski, Francis

Surgery

Instruments

Blood vessel, duct or teat cutter, scrapper or abrader

12866206, 12866003, 604696, A61M 2500, A61B 812

Patent

active

051004240

ABSTRACT:
Front-end and side-on intravascular catheters are described that comprise an abrasive head contained substantially within a housing. Aspiration means and flushing means are connected to the region of grinding to remove dislodged debris. A preferred embodiment has the abrasive surface of a rotatable head comprised of diamond powder, fused silica, tungsten carbide, aluminum oxide, or boron nitride. Another preferred embodiment has an ultrasonic transducer affixed to the head to permit transluminal imaging of the site of occlusion.

REFERENCES:
patent: 3889657 (1975-06-01), Baumgarten
patent: 4465072 (1984-08-01), Taheri
patent: 4631052 (1986-12-01), Kensey
patent: 4747821 (1988-05-01), Kensey et al.
patent: 4794928 (1989-01-01), Kletschka
patent: 4794931 (1989-01-01), Yock
patent: 4795438 (1989-01-01), Kensey et al.
patent: 4842578 (1989-06-01), Johnson et al.
patent: 4857045 (1989-08-01), Rydell
patent: 4857046 (1989-08-01), Stevens et al.
patent: 4951677 (1990-08-01), Crowley et al.

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