Therapeutic porous balloon catheter
First Claim
1. A balloon catheter which comprises a catheter shaft, first and second balloons carried on said catheter shaft with said second balloon positioned to at least partly overlie and sealingly enclose said first balloon;
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
said first and second balloons defining holes of a size to permit medication delivered through said lumen to pass outwardly through the perforations of both the first and second balloons.
2 Assignments
0 Petitions
Accused Products
Abstract
A balloon catheter comprises a catheter shaft, and first and second balloons carried on the catheter shaft with the second balloon positioned to at least partly overlie and sealingly enclose the first balloon. A lumen is defined by the catheter shaft to communicate between a space located within the first balloon and a proximal end portion of the catheter shaft. The first and second balloons each define holes of a size to permit medication delivered through the lumen to pass outwardly through the perforations of both the first and second balloons. By such an arrangement, medication may be directly delivered over a wide area to tissue without tissue damage.
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Citations
28 Claims
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1. A balloon catheter which comprises a catheter shaft, first and second balloons carried on said catheter shaft with said second balloon positioned to at least partly overlie and sealingly enclose said first balloon;
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
said first and second balloons defining holes of a size to permit medication delivered through said lumen to pass outwardly through the perforations of both the first and second balloons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 15, 16)
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
- 10. The catheter of claim in which a tubular, porous, liquid-permeable member is positioned between said first and second balloons.
- 13. The catheter of claim in which a tubular, porous, liquid permeable member is bonded to one of said first and second balloons in a position to extend across the perforations thereof.
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17. A balloon catheter which comprises a catheter shaft, first and second balloons carried on said catheter shaft with said second balloon positioned to sealingly enclose the first balloon;
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
said first and second balloons defining holes of a size to permit medication delivered through said lumen to pass outwardly through the holes of both the first and second balloons;
the holes of the first balloon being displaced out of registry with the holes of the second balloon. - View Dependent Claims (18, 19, 20, 21)
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
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22. A balloon catheter which comprises a catheter shaft, first and second balloons carried on said catheter shaft with said second balloon positioned to sealingly enclose said first balloon;
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
said first and second balloons defining holes of a size to permit medication delivered through said lumen to pass outwardly through the holes of both the first and second balloons, said first and second balloons and the space therebetween comprising at least one tubular, porous, liquid-permeable member made of open-cell foam or expanded, fibrous plastic. - View Dependent Claims (23, 24, 25)
- a lumen defined by said catheter shaft which communicates between a space located within said first balloon and a proximal end portion of said catheter shaft;
- 26. A balloon catheter which comprises a catheter shaft and a balloon carried on said catheter shaft, a lumen defined by said catheter shaft which communicates between a space located within said balloon and a proximal end portion of said catheter shaft, said balloon comprising a plurality of holes of a size to permit medication delivered through said lumen to pass outwardly through said holes, said balloon carrying a tubular, microporous membrane covering said holes to break up streams of flowing medication the microporous membrane having pores that are smaller than the balloon holes.
Specification