Irregular surface balloon catheters for body passageways and methods of use
First Claim
1. A balloon catheter for use in transporting a fluid between an external location and a body passageway comprising:
- a. a flexible cannula having at least one lumen, the flexible cannula having a distal end being of a size capable of insertion into a body passageway, and a proximal end capable of connection to an outside location, said cannula being adapted to transport fluids between the outside location and the body passageway when inserted therein;
b. a balloon, having a distal end and a proximal end, attached to the cannula periphery near the distal end of said cannula, thereby forming a chamber within the balloon and outside of the cannula;
c. expansion means in communication with the balloon for admitting fluid into and thereby inflating said balloon; and
d. knob means for securely gripping the walls of the body passageway when the balloon is inflated in order to secure the catheter in place during use and forming a seal within the body passageway, said knob means comprising a plurality of knobs projecting outwardly from the outer surface of said balloon, and wherein the plurality of knobs are formed from a material and are of a size and shape that they will securely grip the walls of a body passageway and form a seal within the body passageway when the balloon is inflated.
3 Assignments
0 Petitions
Accused Products
Abstract
This invention relates to balloon catheters for use in infusing a solution into a body passageway, and their methods of use and manufacture. Each catheter contains at least one lumen through which a solution flows into the body. The balloons of each catheter are secured to the proximal end of the catheter, and each have a plurality of protuberances projecting outwardly from the outer surface of the balloons for the purpose of firmly gripping the walls of the body passageway so as to secure placement of the catheter within the passageway. A malleable wire assists in retaining the catheter in position within the body passageway. A double balloon catheter allows sealing of the body passageway to be accomplished separately from securely gripping the walls.
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Citations
20 Claims
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1. A balloon catheter for use in transporting a fluid between an external location and a body passageway comprising:
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a. a flexible cannula having at least one lumen, the flexible cannula having a distal end being of a size capable of insertion into a body passageway, and a proximal end capable of connection to an outside location, said cannula being adapted to transport fluids between the outside location and the body passageway when inserted therein; b. a balloon, having a distal end and a proximal end, attached to the cannula periphery near the distal end of said cannula, thereby forming a chamber within the balloon and outside of the cannula; c. expansion means in communication with the balloon for admitting fluid into and thereby inflating said balloon; and d. knob means for securely gripping the walls of the body passageway when the balloon is inflated in order to secure the catheter in place during use and forming a seal within the body passageway, said knob means comprising a plurality of knobs projecting outwardly from the outer surface of said balloon, and wherein the plurality of knobs are formed from a material and are of a size and shape that they will securely grip the walls of a body passageway and form a seal within the body passageway when the balloon is inflated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for transporting a solution between an external location and a body passageway comprising the steps of:
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a. inserting a balloon catheter through a small incision or opening in the body into a body passageway, the catheter comprising; (1) a cannula having at least one lumen, the cannula having a distal end being of a size capable of insertion into a body passageway, and a proximal end capable of connection to an outside location; (2) a balloon attached to the cannula periphery near the distal end of the cannula, thereby forming a chamber within the balloon and outside of the cannula; (3) expansion means in communication with the balloon for admitting fluid into and thereby inflating said balloon; and (4) knob means for securely gripping the walls of the body passageway when the balloon is inflated so as to secure the cannula in place during use and forming a seal within the body passageway, the knob means comprising a plurality of knobs projecting outwardly from the outer surface of the balloon, and wherein the plurality of knobs are formed from a material and are of a size and shape that they will securely grip the walls of a body passageway and form a seal within the body passageway when the balloon is inflated; b. introducing fluid through the expansion means so as to inflate the balloon, thereby allowing the knob means to securely engage the walls of the body passageway and form a seal therewith; and c. allowing solution to flow through the secured catheter. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A balloon catheter for use in transporting a fluid between an external location and a body passageway comprising:
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a. a flexible cannula having at least one lumen, the flexible cannula having a distal end being of a size capable of insertion into a body passageway, and a proximal end capable of connection to an outside location, said cannula being adapted to transport fluids between the outside location and the body passageway when inserted therein; b. a balloon, having a distal end and a proximal end, attached to the cannula periphery near the distal end of said cannula, thereby forming a chamber within the balloon and outside of the cannula; c. expansion means in communication with the balloon for admitting fluid into and thereby inflating said balloon; and d. a malleable wire located within a portion of the cannula, the malleable wire being constructed of a malleable material such that the malleable wire can be used to assist in maintaining the shape of the flexible cannula in the body passageway, wherein the malleable wire extends within the cannula from the proximal end of the cannula to substantially near but not past the distal end of the balloon.
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20. A method for transporting a solution between an external location and a body passageway comprising the steps of:
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a. inserting a balloon catheter through a small incision or opening in the body into a body passageway, the catheter comprising; (1) a cannula having at least one lumen, the cannula having a distal end being of a size capable of insertion into a body passageway, and a proximal end capable of connection to an outside location; (2) a balloon attached to the cannula periphery near the distal end of the cannula, thereby forming a chamber within the balloon and outside of the cannula; (3) expansion means in communication with the balloon for admitting fluid into and thereby inflating said balloon; and (4) a malleable wire extending within the cannula from the proximal end to substantially near but not past the distal end of the balloon, the malleable wire being constructed of a malleable material such that the malleable wire can be used to assist in maintaining the shape of the flexible cannula in the body passageway; b. introducing fluid through the expansion means so as to inflate the balloon; and c. allowing solution to flow through the secured catheter.
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Specification