发明名称 |
CATHETER APPARATUS AND METHODOLOGY FOR GENERATING A FISTULA ON-DEMAND BETWEEN CLOSELY ASSOCIATED BLOOD VESSELS AT A PRE-CHOSEN ANATOMIC SITE IN-VIVO |
摘要 |
The present invention provides catheter apparatus (10, 200) 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. |
申请公布号 |
WO9733522(A1) |
申请公布日期 |
1997.09.18 |
申请号 |
WO1997US02800 |
申请日期 |
1997.02.21 |
申请人 |
BETH ISRAEL DEACONESS MEDICAL CENTER;COHN, WILLIAM, E.;KIM, DUCKSOO |
发明人 |
COHN, WILLIAM, E.;KIM, DUCKSOO |
分类号 |
A61M25/00;A61B17/10;A61B17/11;A61B17/22;A61B17/32;A61B18/14 |
主分类号 |
A61M25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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