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US 8,556,851 B2Granted
Balloon catheter
AssigneeAngioSlide Ltd.
InventorsEran Hirszowicz, Shay Dubi
Life of this patent
Estimating the term…
Abstract
A catheter system suitable for the retrieval of debris and other solid or liquid matter from body passages, and the removal of said matter from the body. More particularly, a catheter system including two or more concentrically-arranged conduits and an inflatable element connected therebetween, wherein the inflatable element is arranged such that it may entrap solid or liquid matter in an internal annular cavity.
Claims22
A balloon catheter system comprising:
- an outer conduit having an outer surface;
- an inner conduit having an outer surface, said inner conduit is suitable for passage over a guide wire, said inner conduit is disposed within the lumen of said outer conduit such that the longitudinal axes of said inner and outer conduits are substantially parallel, and positioned such that the distal tip of said inner conduit extends beyond the distal tip of said outer conduit, wherein said inner conduit is capable of being moved along its longitudinal axis in relation to said outer conduit;
- a balloon having an inner surface and an outer surface, wherein the inner surface of the proximal margin of said balloon is attached to the outer surface of the distal tip of said outer conduit, and the inner surface of the distal margin of said balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of said outer conduit at all times during operation of said catheter, and wherein the distal and/or proximal end portion(s) of said balloon are capable of intussusception upon proximal movement of said inner conduit in relation to said outer conduit to form a cavity within said balloon, such that when the intussuscepted balloon is deflated, said cavity is enlarged trapping therewithin debris and/or particulate matter without the need for a application of externally applied suction;
- and
- a fluid port for the introduction of an expansion fluid into the annular space formed between the inner surface of the outer conduit and the outer surface of the inner conduit and therefrom into the lumen of said balloon, and for the removal thereof.
2 more elements
A balloon catheter system comprising:
- an outer conduit having an outer surface;
- an inner conduit having an outer surface, said inner conduit is suitable for passage over a guide wire, said inner conduit is disposed within the lumen of said outer conduit such that the longitudinal axes of said inner and outer conduits are substantially parallel, and positioned such that the distal tip of said inner conduit extends beyond the distal tip of said outer conduit at all times during operation of said catheter, wherein said inner conduit is capable of being moved along its longitudinal axis in relation to said outer conduit;
- a balloon having an inner surface and an outer surface, wherein the inner surface of the proximal margin of said balloon is attached to the outer surface of the distal tip of said outer conduit, and the inner surface of the distal margin of said balloon is attached to the outer surface of the portion of the inner conduit that extends beyond the distal tip of said outer conduit, and wherein the distal and/or proximal end portion(s) of said balloon are capable of intussusception upon proximal movement of said inner conduit in relation to said outer conduit to form a cavity within said balloon, such that when the intussuscepted balloon is deflated, said cavity is enlarged trapping therewithin debris and/or particulate matter without the need for application of externally applied suction;
- means for the introduction of an expansion fluid into the annular space formed between the inner surface of the outer conduit and the outer surface, and
- means for automatically relieving overpressure conditions within said annular space and said balloon upon proximal axial movement of said inner conduit in relation to said outer conduit, wherein said means for relieving overpressure conditions are selected from the group consisting of,
- a syringe-like structure, having a barrel portion and a plunger, positioned at the proximal end of the catheter system, wherein the barrel portion of said syringe-like structure is formed by an expanded portion of the outer conduit, and wherein the plunger of said syringe-like structure co-axially surrounds the proximal end of the inner conduit, and is affixed thereto,
- an inflatable member attached to the opening of an outlet formed in said outer conduit, said outer tube, or portions thereof, being inflatable such that over-pressure conditions may be relieved by its expansion, and
- any combinations thereof.
5 more elements
Dependencies are inferred from the claim text.