Catheter apparatus and methodology for generating a fistula on-d

Details Catheter apparatus and methodology for generating a fistula on-d Catheter apparatus and methodology for generating a fistula on-d

1996-03-15

1998-11-03

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

604 22, 606167, A61B 1732

Patent

active

058302247

ABSTRACT:
The present invention provides catheter apparatus and catheterization methodology for generating an arteriovenous fistula or a veno-venous fistula on-demand between closely associated blood vessels and at a chosen anatomic site in-vivo. The catheter apparatus is preferably employed in pairs, each catheter of the pair being suitable for percutaneous introduction into and extension through a blood vessel. The catheterization methodology employs the catheter apparatus preferably in conjunction with conventional radiological techniques in order to place, verify, and confirm a proper alignment, orientation, and positioning for the catheters in-vivo prior to activating the perforation means for generating a fistula. The invention permits the generation of arteriovenous fistulae and veno-venous fistulae anatomically anywhere in the vascular system of a patient; nevertheless, the invention is most desirably employed in the peripheral vascular system as exists in the extremities of the body to aid in the treatment of the patient under a variety of different medical ailments and pathologies.

REFERENCES:
patent: 4787884 (1988-11-01), Goldberg
patent: 4874360 (1989-10-01), Goldberg
patent: 5047025 (1991-09-01), Taylor et al.
patent: 5087256 (1992-02-01), Taylor et al.
patent: 5353807 (1994-10-01), DeMarco

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