Valve treatment catheter and methods
First Claim
1. A catheter for insertion into a biological passage which contains a first flowing fluid already in the biological passage, the catheter comprising:
- a. a tubular member having a proximal end and a distal end;
b. a fluid delivery lumen contained within the tubular member;
c. an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state, the balloon assembly including apertures in communication with the fluid delivery lumen;
d. an inflation lumen in communication with the balloon member; and
e. a valve contained within the inflatable balloon assembly, the inflatable balloon assembly configured such that when the balloon member is in the inflated state;
(i) sections of the balloon member contact the biological passage defining at least one containment pocket;
(ii) the apertures are disposed in the containment pocket, (iii) a flow lumen is defined through the balloon member to allow the first fluid already in the biological passage to flow through the balloon member; and
(iv) the valve functions to allow the first flowing fluid already in the biological passage to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen.
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Accused Products
Abstract
The invention provides a catheter for insertion into a biological passage which contains a first flowing fluid, the catheter including a tubular member having a proximal end and a distal end; a fluid delivery lumen contained within the tubular member; an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state, the balloon assembly including apertures in communication with the fluid delivery lumen; an inflation lumen in communication with the balloon member; and a valve contained within the inflatable balloon assembly. The inflatable balloon is assembly configured such that when the balloon member is in the inflated state: (i) sections of the balloon member contact the biological passage defining at least one containment pocket; (ii) the apertures are disposed in the containment pocket, (iii) a flow lumen is defined through the balloon member to allow the first fluid to flow through the balloon member; and (iv) the valve functions to allow the first flowing fluid to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen.
332 Citations
28 Claims
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1. A catheter for insertion into a biological passage which contains a first flowing fluid already in the biological passage, the catheter comprising:
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a. a tubular member having a proximal end and a distal end;
b. a fluid delivery lumen contained within the tubular member;
c. an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state, the balloon assembly including apertures in communication with the fluid delivery lumen;
d. an inflation lumen in communication with the balloon member; and
e. a valve contained within the inflatable balloon assembly, the inflatable balloon assembly configured such that when the balloon member is in the inflated state;
(i) sections of the balloon member contact the biological passage defining at least one containment pocket;
(ii) the apertures are disposed in the containment pocket, (iii) a flow lumen is defined through the balloon member to allow the first fluid already in the biological passage to flow through the balloon member; and
(iv) the valve functions to allow the first flowing fluid already in the biological passage to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A catheter for insertion into a biological passage which contains a first flowing fluid, already in the biological passage, the catheter comprising:
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a. a tubular member having a proximal end and a distal end;
b. an inflatable balloon assembly disposed at the distal end of the tubular member, the balloon assembly including an inflatable balloon member having an uninflated state and an inflated state, c. an inflation lumen in communication with the balloon member;
d. a valve contained within the inflatable balloon assembly, the inflatable balloon assembly configured such that when the balloon member is in the inflated state;
(i) sections of the balloon member contact the biological passage defining at least one containment pocket;
(ii) a flow lumen is defined through the balloon member to allow the first fluid already in the biological passage to flow through the balloon member; and
(iii) the valve functions to allow the first flowing fluid already in the biological passage to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A catheter for insertion into a biological passage which contains a first flowing fluid already in the biological passage, the catheter comprising:
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a. a tubular member having a proximal end and a distal end;
b. a fluid delivery lumen contained within the tubular member;
c. an inflatable balloon assembly comprising a first toroidal-shaped balloon disposed at the distal end of the tubular shaft, a second toroidal-shaped balloon spaced proximally from the first toroidal-shaped balloon, and a cylindrical sheath attached to the first and second toroidal-shaped balloons, wherein the first and second toroidal shaped balloons have an outer diameter, and wherein the sheath is attached to the toroidal-shaped balloons at a position radially inward of the outer diameter of the toroidal-shaped balloons;
d. an inflation lumen in communication with the toroidal-shaped balloons;
e. a valve contained within the sheath, wherein the inflatable balloon assembly is configured such that when the toroidal-shaped balloons are inflated;
(i) the toroidal-shaped balloons expand the sheath, (ii) sections of the toroidal-shaped balloons contact the biological passage wall defining at least one containment pocket between the biological passage, the tubular shaft, the toroidal-shaped balloons, and the sheath;
(iii) the apertures are disposed in the containment pocket, (iv) the sheath forms a flow lumen to allow the first fluid already in the biological passage to flow through the balloon member; and
(v) the valve functions to allow the first flowing fluid already in the biological passage to flow through the flow lumen in a physiologic direction, while blocking backflow of the first fluid through the flow lumen.
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27. A method of delivering a therapeutic fluid to a treatment site in a biological passage, the treatment site including a valve, the biological passage containing a first fluid, the method comprising steps of:
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a. providing an inflatable balloon assembly on the distal end of a catheter, the size of the balloon assembly when deflated adapted to fit within the biological passage;
b. positioning the balloon assembly at the treatment site;
c. inflating the balloon assembly at the treatment site;
d. engaging a section of the biological passage with a section of the balloon assembly while maintaining a section of the balloon assembly away from the biological passage thereby defining a plurality of containment pockets within the engaging section;
e. delivering a therapeutic fluid to the containment pockets, wherein when the balloon assembly is inflated, the balloon assembly defines a flow lumen through which the first fluid already in the biological passage can flow, while maintaining the therapeutic fluid within the containment pockets, and a valve contained within the balloon assembly functions to allow the first flowing fluid already in the biological passage to flow through the balloon member in a physiologic direction, while blocking backflow of the first fluid through the balloon member. - View Dependent Claims (28)
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Specification