Surgery – Instruments – Cutting – puncturing or piercing
Patent
1998-08-17
2000-08-08
Buiz, Michael
Surgery
Instruments
Cutting, puncturing or piercing
604 22, A61B 1732
Patent
active
060995424
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: 5353807 (1994-10-01), DeMarco
patent: 5429131 (1995-07-01), Scheinman et al.
patent: 5727553 (1998-03-01), Saad
Cohn William E.
Kim Ducksoo
Beth Israel Hospital Association Inc.
Buiz Michael
Prashker David
Truong Kevin
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