Inflatable perfusion catheter
First Claim
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1. A perfusion catheter for insertion into a body conduit, said catheter comprising:
- a shaft having at least one lumen for delivery of a fluid inflation media;
an array formed of a plurality of radially disposed inflatable balloons having proximal ends, the balloons of said array being inflatable to form a generally cylindrically shape having inner and outer sides, said outer sides being arranged to engage a body conduit;
means to inflate each of said balloons, said means including a plurality of channels, each channel being in fluid flow relationship with the proximal end of one of said balloons and said lumen;
at least one opening between two adjacent channels to allow the flow of body fluids from the proximal ends, within said array and out the catheter.
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Abstract
A perfusion catheter for insertion into a body conduit, especially an artery. The catheter comprises a shaft (5) having at least one lumen (7) for delivery of a fluid inflation media and an array (1) formed of a plurality of radially disposed inflatable balloons (3) disposed in a cylindrical array around the shaft (5), each of the balloons (3) sharing a common wall (3a) with adjacent balloons (3). The balloons (3) are inflated by an array of channels (11) and separated from each other by a web (19). There is at least one opening (17) between two adjacent channels (11) to allow the flow of fluids into the array (1).
63 Citations
22 Claims
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1. A perfusion catheter for insertion into a body conduit, said catheter comprising:
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a shaft having at least one lumen for delivery of a fluid inflation media; an array formed of a plurality of radially disposed inflatable balloons having proximal ends, the balloons of said array being inflatable to form a generally cylindrically shape having inner and outer sides, said outer sides being arranged to engage a body conduit; means to inflate each of said balloons, said means including a plurality of channels, each channel being in fluid flow relationship with the proximal end of one of said balloons and said lumen; at least one opening between two adjacent channels to allow the flow of body fluids from the proximal ends, within said array and out the catheter. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A perfusion catheter for insertion into a body conduit, said catheter comprising:
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a shaft having at least one lumen for delivery of a fluid inflation media; a cylindrical array of a plurality of radially disposed inflatable balloons having proximal and distal ends arranged around said shaft, each balloon sharing a common wall with an adjacent balloon, outer sides of said cylindrical array being arranged to engage said body conduit; means to inflate each of said balloons, said means including a plurality of channels in fluid flow relationship with the proximal ends of said balloons, one end of each of said channels being connected to a common manifold in fluid flow with said lumen and the other end of each being connected to one of said balloons; at least one opening between two adjacent channels to allow the flow of body fluids through, within and to the other side of said cylindrical array.
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8. A perfusion catheter for insertion into a body conduit, said catheter comprising:
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a shaft having at least one lumen for delivery of a fluid inflation media; a cylindrical array of a plurality of radially disposed inflatable balloons having proximal and distal ends arranged around said shaft, each balloon sharing a common wall with an adjacent balloon, outer sides of said cylindrical array being adapted to engage said body conduit; means to inflate each of said balloons, said means including a plurality of channels in fluid flow relation with the proximal ends of said balloons, said channels being separated from each other by a web, said webs being disposed between adjacent channels; an opening in at least one of said webs between two adjacent channels to allow the flow of body fluids through and within and to the other side of said cylindrical array. - View Dependent Claims (9, 10, 11, 12)
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13. A catheter which allows the passage of blood through a body conduit while an array attached thereto is inflated, said catheter comprising:
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a shaft having an internal lumen for the introduction of an inflation fluid; a radially expandable, inflatable cylindrical array of balloons disposed around said shaft, said array having an interior face and a body conduit engaging face; means for connecting said array to said shaft for enabling the introduction of inflation media to the balloons of said array; and means for allowing the flow of body fluids between said shaft and said interior face whereby the flow of body fluids through said conduit will not be prevented when said array is inflated. - View Dependent Claims (14, 15)
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16. A perfusion catheter for insertion into a body conduit, said catheter comprising:
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a shaft having at least one lumen for delivery of a fluid inflation media; a cylindrical shell of a plurality of radially disposed inflatable balloons having proximal and distal ends and an inner and outer side arranged around said shaft, the outer sides of said cylindrical shell being arranged to engage said body conduit; means to inflate each of said balloons, said means including a plurality of channels in fluid flow relationship with the proximal ends of said balloons, said channels being separated from each other by a web, said web being disposed between adjacent channels; a opening in at least one of said webs between adjacent channels to allow the flow of body fluids through and within and to the other side of said cylindrical array.
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17. A perfusion catheter for insertion into a body conduit, said catheter comprising:
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a shaft having at least one lumen for delivery of a fluid inflation media; a cylindrical array of a plurality of radially disposed inflatable balloons having proximal and distal ends arranged around said shaft, each balloon sharing a common wall with an adjacent balloon, outer sides of said cylindrical array being adapted to engage said body conduit; means to inflate each of said balloons, said means including a plurality of channels in fluid flow relationship with the proximal ends of said balloons, one end of each of said channels being connected to a common manifold and the other end of each being connected to the distal end of one of said balloons; at least one opening between two adjacent channels to allow the flow of body fluids through and within and to the other side of said cylindrical array. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification