Dual balloon catheter
First Claim
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1. A method of closing an opening in a first blood vessel which comprises introducing the closed end of a catheter into a second blood vessel remote from and communicating with said first blood vessel;
- the said catheter being formed of an elongated tube having a central bore extending the length thereof, said bore being closed at one end of said catheter and having means for introducing a pressurized fluid into said bore at the other end of said catheter, said catheter further including first balloon forming structure disposed about said tube adjacent the closed end of said catheter, second balloon forming structure disposed about said tube spaced along the length thereof apart from said first balloon forming structure, each said balloon forming structure having an expandable cylindrical wall enclosing said tube and sealed at the ends thereof to said tube thereby trapping an annular closed space between said wall and said tube, and first and second ports in said tube communicating the interior bore thereof with said closed spaces trapped by said walls of said first and said second balloon forming structures, respectively;
advancing said catheter in said blood vessels to a position in said first blood vessel with said first and second balloon forming structures disposed on opposite sides of said opening;
introducing fluid under pressure into said catheter through said means at the other end of said catheter thereby causing said fluid to flow into said closed spaces and expanding said walls to an oblate shape blocking flow of blood in said first blood vessel;
surgically closing said opening while retaining pressure on said fluid;
removing pressure from said fluid after closing said opening thereby to deflate said balloon forming structures; and
removing said catheter from said blood vessels.
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Accused Products
Abstract
A technique and a device for cutting off the flow of blood through an unwanted opening in a major blood vessel to facilitate surgical closure of the opening utilizing a dual balloon catheter inserted into the blood vessel with the balloons inflated on opposite sides of the opening.
120 Citations
1 Claim
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1. A method of closing an opening in a first blood vessel which comprises introducing the closed end of a catheter into a second blood vessel remote from and communicating with said first blood vessel;
- the said catheter being formed of an elongated tube having a central bore extending the length thereof, said bore being closed at one end of said catheter and having means for introducing a pressurized fluid into said bore at the other end of said catheter, said catheter further including first balloon forming structure disposed about said tube adjacent the closed end of said catheter, second balloon forming structure disposed about said tube spaced along the length thereof apart from said first balloon forming structure, each said balloon forming structure having an expandable cylindrical wall enclosing said tube and sealed at the ends thereof to said tube thereby trapping an annular closed space between said wall and said tube, and first and second ports in said tube communicating the interior bore thereof with said closed spaces trapped by said walls of said first and said second balloon forming structures, respectively;
advancing said catheter in said blood vessels to a position in said first blood vessel with said first and second balloon forming structures disposed on opposite sides of said opening;
introducing fluid under pressure into said catheter through said means at the other end of said catheter thereby causing said fluid to flow into said closed spaces and expanding said walls to an oblate shape blocking flow of blood in said first blood vessel;
surgically closing said opening while retaining pressure on said fluid;
removing pressure from said fluid after closing said opening thereby to deflate said balloon forming structures; and
removing said catheter from said blood vessels.
- the said catheter being formed of an elongated tube having a central bore extending the length thereof, said bore being closed at one end of said catheter and having means for introducing a pressurized fluid into said bore at the other end of said catheter, said catheter further including first balloon forming structure disposed about said tube adjacent the closed end of said catheter, second balloon forming structure disposed about said tube spaced along the length thereof apart from said first balloon forming structure, each said balloon forming structure having an expandable cylindrical wall enclosing said tube and sealed at the ends thereof to said tube thereby trapping an annular closed space between said wall and said tube, and first and second ports in said tube communicating the interior bore thereof with said closed spaces trapped by said walls of said first and said second balloon forming structures, respectively;
Specification
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Current AssigneeDevices Development Corporation
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Original AssigneeEric G. Leveen, Harry H. Leveen, Robert F. Leveen
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InventorsLeVeen, Robert F., LeVeen, Harry H., LeVeen, Eric G.
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Primary Examiner(s)Truluck, Dalton L.
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Application NumberUS06/250,603Time in Patent Office900 DaysField of Search128/325, 128/344, 128/348-350 R, 128/214.4, 128/348.1, 604/49-53, 604/101US Class Current606/194CPC Class CodesA61B 17/1204 temporary occlusionA61B 17/12045 double occlusion, e.g. duri...A61B 17/12109 in a blood vesselA61B 17/12136 BalloonsA61M 25/1011 Multiple balloon catheters
