Balloon guide
First Claim
1. A balloon guide which comprises:
- a guide body comprising a coiled wire forming a cylindrical body having a central lumen open at the proximal and distal ends, said coiled wire including a first, proximal portion in which the coils are secured together with one another, and a second, distal portion in which the coils are normally adjacent one another but are separate from one another,said guide body including a plug seat located within the central lumen distal of the second portion of the coiled wire, the plug seat defining a passageway communicating with the central lumen, the plug seat being configured to provide a closing off of the central lumen upon closing off of the plug seat,said guide body further including a balloon attached to the coiled wire, the balloon being positioned over and in fluid communication with the second portion of the coiled wire to enable fluid passing from within the central lumen and through the separated coils of the second portion to enter into and inflate the balloon;
a plug mandril comprising an elongated mandril having proximal and distal ends, said plug mandril further including a plug secured to the distal end of the mandril, the mandril and plug being sized to be receivable within the central lumen of said guide body and extendable therethrough, the plug defining a seating portion sized and configured to be received against the plug seat of said guide body and to close off the plug seat when received thereagainst;
extension means for extending said plug mandril into and through the central lumen of said guide body between first and second positions, the first position locating the plug of the mandril spaced from the plug seat of said guide body to permit fluid communication through the plug seat, the second position locating the plug in sealing position against the plug seat and preventing fluid communication therethrough, said extension means extending said plug mandril in the second position through the central lumen a sufficient distance to cause separation of the normally adjacent coils in the second portion of the coiled wire; and
inflation means communicating with the central lumen of said guide body for introducing a fluid into the central lumen and through the separated coils of the second portion of the coiled wire for inflating the balloon when said plug mandril is in the second position within the guide body.
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Accused Products
Abstract
A balloon guide is disclosed which includes a single lumen useful alternately for fluid communication through the distal tip or for inflation of a balloon when the distal end is closed. The guide includes a body formed from coiled wire having a proximal portion in which the coils are held together and a distal portion in which the coils are separable. The balloon is located about the separable coils. A restriction adjacent the distal tip of the guide body is closable by a plug mandril extending through the central lumen of the guide. With the distal tip open, fluid communication is available through the central lumen for pressure measurements, fluid infusion or the like. In an alternate condition, a plug is positioned to close off the distal opening of the guide and also to stretch the coiled wire to separate the coils in the region underlying the balloon, preventing fluid communication through the distal tip, but permitting inflation or deflation of the balloon through the separated wire coils.
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Citations
24 Claims
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1. A balloon guide which comprises:
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a guide body comprising a coiled wire forming a cylindrical body having a central lumen open at the proximal and distal ends, said coiled wire including a first, proximal portion in which the coils are secured together with one another, and a second, distal portion in which the coils are normally adjacent one another but are separate from one another, said guide body including a plug seat located within the central lumen distal of the second portion of the coiled wire, the plug seat defining a passageway communicating with the central lumen, the plug seat being configured to provide a closing off of the central lumen upon closing off of the plug seat, said guide body further including a balloon attached to the coiled wire, the balloon being positioned over and in fluid communication with the second portion of the coiled wire to enable fluid passing from within the central lumen and through the separated coils of the second portion to enter into and inflate the balloon; a plug mandril comprising an elongated mandril having proximal and distal ends, said plug mandril further including a plug secured to the distal end of the mandril, the mandril and plug being sized to be receivable within the central lumen of said guide body and extendable therethrough, the plug defining a seating portion sized and configured to be received against the plug seat of said guide body and to close off the plug seat when received thereagainst; extension means for extending said plug mandril into and through the central lumen of said guide body between first and second positions, the first position locating the plug of the mandril spaced from the plug seat of said guide body to permit fluid communication through the plug seat, the second position locating the plug in sealing position against the plug seat and preventing fluid communication therethrough, said extension means extending said plug mandril in the second position through the central lumen a sufficient distance to cause separation of the normally adjacent coils in the second portion of the coiled wire; and inflation means communicating with the central lumen of said guide body for introducing a fluid into the central lumen and through the separated coils of the second portion of the coiled wire for inflating the balloon when said plug mandril is in the second position within the guide body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18)
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17. A method for inflating a balloon guide which comprises the steps of:
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a. providing a guide body having a coiled wire forming a cylindrical body having a central lumen open at the proximal and distal ends, the guide body including a first portion of the coiled wire in which the coils are secured together with one another, and a second portion of the coiled wire in which the coils are normally adjacent one another but are separable from one another, the guide body including a plug seat located within the central lumen distal of the second portion of the coiled wire, the plug seat defining a passageway communicating with the central lumen, the plug seat being configured to provide a closing off of the central lumen upon closing off of the plug seat, the guide body further including a balloon attached to the coiled wire and positioned over the second portion of the coiled wire to enable fluid passing from within the central lumen and through the separated coils of the second portion to enter into and inflate the balloon; b. providing a plug mandril comprising an elongated mandril having proximal and distal ends, the plug mandril further including a plug secured to the distal end of the mandril, the mandril and plug being sized to be receivable within the central lumen of said guide body and extendable therethrough, the plug defining a seating portion sized and configured to be received against the plug seat of said guide body and to close off the plug seat when received thereagainst; c. extending the plug mandril into and through the central lumen of said guide body to locate the plug in sealing position against the plug seat and a sufficient distance to cause separation of the normally adjacent coils in the second portion of the coiled wire; and d. after step c., introducing a fluid into the central lumen and through the separated coils of the second portion of the coiled wire for inflating the balloon. .Iadd.
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19. A balloon guide comprising:
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a guide body having an elongated cylindrical body, a proximal end, a distal end, and a central lumen therethrough open at said proximal end and said distal end, said guide body having a plug seat adjacent said distal end, and at least part of said guide body between said proximal end and said plug seat being formed of a plurality of coils, said coils being separable from a normal position; a balloon attached to said guide body between said proximal end and said plug seat with said plug seat distal said balloon, said balloon positioned over and in fluid communication with at least a portion of said plurality of coils to enable fluid passing from within said central lumen and through said coils to enter into and inflate the balloon; and a plug mandril having an elongated body portion and a plug portion, said plug mandril sized to be receivable through said central lumen and extendable through said lumen and said balloon to engage said plug seat, said plug portion being sized and configured to close said central lumen at said distal end of said guide body when pressed against said plug seat; and means for separating said plurality of coils from said normal position, said balloon being inflatable by forcing fluid into said central lumen while pressing said plug portion of said plug mandril against said plug seat to close said central lumen at said plug seat with the fluid passing through said central lumen and between said plurality of coils, with said plurality of coils separated, into said balloon to inflate said balloon. .Iaddend. .Iadd. - View Dependent Claims (20)
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21. A method of performing a medical procedure for expansion of a balloon within a vessel comprising the steps of:
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providing a balloon guide including a guide body having an elongated cylindrical body and a central lumen therethrough open at the proximal and distal ends of the body, the guide body having a plug seat adjacent the distal end, and at least part of the guide body adjacent the plug seat being formed of a plurality of coils, the balloon guide further including a balloon attached to the guide body between the proximal end and the plug seat with the plug seat distal the balloon, the balloon covering at least a portion of the plurality of coils, the balloon guide also including a plug mandril having an elongated body portion and a plug portion, the plug mandril having a diameter capable of passing freely through the central lumen to the distal end, the plug portion being capable of closing the central lumen when pressed against the plug seat; guiding the balloon guide to a desired location within a patient; pressing the plug mandril against the plug seat thereby closing the central lumen of the guide body distally of the balloon; forcing fluid into the central lumen at the proximal end of the guide body and between the plurality of coils into the balloon, thereby inflating the balloon; deflating the balloon; and withdrawing the balloon guide from the patient. .Iaddend. .Iadd. - View Dependent Claims (22, 23)
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24. within the patient with said wire guide. .Iaddend. .Iadd.30. A balloon guide comprising:
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a guide body including; a cylindrical body having a central lumen open at the proximal and distal ends of said body, said cylindrical body including a distal portion formed of a plurality of coils, said coils being separable from a normal position; and a plug seat located within said central lumen at said distal end of said guide body, said plug seat defining a passageway communicating with said central lumen and being configured to provide a closing off of said central lumen upon closing off of said plug seat; a balloon attached to said guide body between said proximal end and said plug seat with said plug seat distal said balloon, said balloon being positioned over and in fluid communication with said plurality of coils to enable fluid passing from within said central lumen and through said coils to enter into and inflate said balloon; a plug mandril sized to be receivable within and extendable through said central lumen of said guide body and including an elongated mandril having proximal and distal ends, and a plug portion secured to said distal end of said mandril, said plug portion defining a seating portion sized and configured to be received against said plug seat of said guide body to close off said plug seat when received thereagainst; and extension means for extending said plug mandril into and through said central lumen from said proximal end to said distal end of said guide body between first and second positions, said first position locating said plug portion spaced from said plug seat of said guide body to permit fluid communication through said passageway of said plug seat, and said second position locating said plug portion in sealing position against said plug seat and preventing fluid communication therethrough, said extension means extending said plug mandril in said second position through said central lumen a sufficient distance to cause separation of said plurality of coils from said normal position. .Iaddend.
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Specification