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 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.
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申请公布号 |
US5830224(A) |
申请公布日期 |
1998.11.03 |
申请号 |
US19960616588 |
申请日期 |
1996.03.15 |
申请人 |
BETH ISRAEL DEACONESS MEDICAL CENTER |
发明人 |
COHN, WILLIAM E.;KIM, DUCKSOO |
分类号 |
A61M25/00;A61B17/10;A61B17/11;A61B17/22;A61B17/32;A61B18/14;(IPC1-7):A61B17/32 |
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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