CATHETER WITH ASSOCIATED EXTENSION LUMEN
First Claim
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1. A system for accessing lumens in living beings for the facilitation of intraluminal medical procedures, said system comprising a first catheter, a catheter extension, and a control member;
- wherein said catheter extension comprises a proximal end and a distal end;
wherein said control member is attached to at least the proximal end of said catheter extension and extending proximally therefrom, said control member further comprising at least a distal end, said distal end extending beyond said distal end of said catheter extension;
wherein said catheter extension is slidably arranged within said first catheter, and further wherein said catheter extension and said first catheter together define a contiguous channel for aspiration of at least one of fluid and debris from said living beings;
wherein said contiguous aspiration channel that is defined by said first catheter is of a larger cross-sectional area than said contiguous aspiration channel defined by said catheter extension; and
wherein said catheter extension has a length that is less than that of said first catheter.
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Abstract
An intra-luminal device for the extraction of occlusive or partially occlusive material is disclosed. Said device comprises a novel catheter extension which minimizes cavitation of extracted fluids and also allows the better navigation of tortuous lumens or vasculature.
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Citations
26 Claims
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1. A system for accessing lumens in living beings for the facilitation of intraluminal medical procedures, said system comprising a first catheter, a catheter extension, and a control member;
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wherein said catheter extension comprises a proximal end and a distal end; wherein said control member is attached to at least the proximal end of said catheter extension and extending proximally therefrom, said control member further comprising at least a distal end, said distal end extending beyond said distal end of said catheter extension; wherein said catheter extension is slidably arranged within said first catheter, and further wherein said catheter extension and said first catheter together define a contiguous channel for aspiration of at least one of fluid and debris from said living beings; wherein said contiguous aspiration channel that is defined by said first catheter is of a larger cross-sectional area than said contiguous aspiration channel defined by said catheter extension; and wherein said catheter extension has a length that is less than that of said first catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for accessing lumens in living beings for the facilitation of intraluminal medical procedures, said system comprising a first catheter, a catheter extension, a guidewire passageway, and a control member;
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(a) wherein said first catheter has a proximal end and a distal end with a channel therebetween, and being arranged to slidably and telescopically accept said catheter extension in said channel with said catheter extension, thereby creating an overlapping segment, (b) wherein said catheter extension comprises a proximal end and a distal end with an extension channel therebetween, with said channel and said extension channel operating together to form a contiguous channel, and (c) wherein said control member has a proximal and a distal end with an elongate body arranged therebetween, and with said control member being attached to at least the proximal end of said catheter extension, with said distal end of said control member being arranged to slidably accept a guide wire, with said control member being arranged to cause axial movement of said catheter extension with respect to said first catheter in response to an application of axial force at the proximal end of said control member; and (d) wherein said guide wire passageway is interior to said first catheter and exterior to said catheter extension.
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24. A system for accessing lumens in living beings for the facilitation of intraluminal medical procedures, said system comprising a first catheter, a catheter extension, and a control member;
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wherein said first catheter comprises a proximal end and a distal end; wherein said catheter extension comprises at least a proximal end; wherein said control member is attached to at least the proximal end of said catheter extension and extending proximally therefrom; wherein said catheter extension is slidably arranged within said first catheter, and further wherein said catheter extension and said first catheter together define a contiguous channel for aspiration of at least one of fluid and debris from said living beings; wherein said contiguous aspiration channel that is defined by said first catheter is of a larger cross-sectional area than said contiguous aspiration channel defined by said catheter extension; wherein said catheter extension has a length that is less than that of said first catheter; and said system further comprising means for preventing over-extension of said catheter extension from said distal end of said first catheter. - View Dependent Claims (25, 26)
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Specification