Bulging torus balloon

Abstract

A medical device for anchoring itself and other medical devices while channeling blood flow through the center of a vessel proximal to the device's target area to minimize debris and the pressure necessary to move blood proximal to the device. The medical device also provides superior recoil reduction capabilities. A doughnut-shaped balloon that may be inflated and deflated by increasing and decreasing pressure within the balloon, having two passages therethrough, dimensioned for blood flow and a delivery device. A method for using the device.

Claims

1. A medical balloon adapted for percutaneous intravascular use, where said medical balloon may be changed from a deflated state to an inflated state by increasing pressure within the balloon, changed from an inflated state to a deflated state by decreasing pressure within the balloon, comprising: (a) a bulging torus-shaped balloon with a first passage through said balloon and a second passage through said balloon; (b) a fluid or gas capable of flowing into and out of said bulging torus-shaped balloon between the external and internal surface walls to inflate said balloon; wherein surfaces of said bulging torus-shaped balloon are made of materials capable of containing said fluid or gas; (c) a catheter comprising a proximal end, a distal end, and at least one continuous lumen connecting said proximal end to said distal end; (d) a port in said second passage; wherein said port communicates with a catheter port; and wherein said port communicates between the inside of said balloon and the inside of at least one catheter lumen; and wherein said bulging torus-shaped balloon has an external surface wall, an internal surface wall, and connecting surface walls linking between both external and internal surface walls; and wherein said first passage is of sufficient size to allow blood to flow through when said bulging torus-shaped balloon is sufficiently inflated; and wherein said second passage is of sufficient size to allow said catheter to pass through; and wherein said catheter is movable through said second passage, and said balloon may be positioned at more than one point between said proximal end and said distal end of said catheter; and wherein the function of said bulging torus-shaped balloon is to provide a form for said fluid or gas to flow from said catheter port through said second passage port to inflate said bulging torus-shaped balloon, and then to deflate said bulging torus-shaped balloon by letting said fluid or gas to flow out of said second passage port into said catheter port; and wherein said balloon can be inflated within an appropriately sized vessel so that the external surface of said balloon will conform to the inner surfaces of the walls of a segment of said vessel while allowing continued blood flow through the first passage through said balloon, while simultaneously obstructing blood flow to said inner walls of said vessel and to any branches arise from said segment of said vessel.

2. The medical balloon of claim 1, wherein said first passage and said second passage having a flattened shape such as formed by a cylinder passing perpendicularly through said bulging torus-shaped balloon.

3. The medical balloon of claim 1, wherein said first passage having the shape of a truncated cone so as to enhance radial anchoring force resulting from blood flowing into a larger opening than it exits.

4. The medical balloon of claim 1, wherein said port in said second passage is a governing element.

5. The medical balloon of claim 1, wherein said catheter comprises one continuous lumen.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 vessel 1 with blockage 2.

(2) FIG. 2 un-deployed bulging torus balloon

(3) FIG. 3 deployed bulging torus balloon

(4) FIG. 4 deployed bulging torus balloon in vessel with blockage 2.

DETAILED DESCRIPTION OF THE INVENTION

(5) The present invention is composed of a temporarily bulging torus shaped bypass balloon 10 comprising two passages. One passage further comprises a port.

(6) The outer diameter of said balloon is 0.001 cm-30 cm. The inner diameter of said balloon element is 0.0001 cm-29 cm.

(7) The present invention is capable of inflating and deflating prior to deployment within a vessel wall 1. Referring to FIG. 2, the bulging torus-shaped balloon 10 of the current invention is depicted in a deflated state disposed upon delivery catheter 20 (shown with dotted lines as not part of the invention).

(8) FIG. 3 depicts the bulging torus-shaped balloon 10 in a fully inflated, deployed state disposed upon delivery catheter 20 (shown with dotted lines). Second passage 1200 allows the delivery device 20 to pass therethrough. First passage 1100 allows for blood to flow through the center of the present invention. Port 1210 within second passage 1200, more particularly on second passage interior wall 1230, overlaps in use with a corresponding port (not shown) on delivery device 20. Balloon surface 115 presses against a vessel wall (not shown) to anchor the present invention and any associated devices such as catheters at a desired location. First passage surface 130 may be shaped to use blood flow to create radial pressure toward the blood vessel wall, thus enhancing the anchoring capability of the present device 10.

(9) Referring now to FIG. 4, the balloon of the present invention 10 is deployed with delivery catheter 20 inside blood vessel wall 1. Blockage 2 is also depicted.

(10) The bulging torus-shaped balloon 10 of the present invention is capable of supporting a catheter 20 or other devices at a particular location/position within a vessel wall 1 or other organ (not shown).

(11) The present invention's balloon element can be added to other catheters or support catheters such as described by Dr. Daniel Walzman's prior applications, in order to help support said catheters in a particular position, and to prevent recoil and displacement.

(12) The present invention may use a catheter as a deliver device. It may also be delivered by a non-catheter device such as a wire which is capable of moving the present invention to the targeted position, activating the preloaded, expandable and contractible material in the balloon, and being replaced by a catheter. Such expandable and contractible material may be activatable foam.

(13) Where a range of values is provided, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range is encompassed within the invention. The upper and lower limits of these smaller ranges which may independently be included in the smaller ranges is also encompassed within the invention, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either both of those included limits are also included in the invention.

(14) Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present invention, exemplary methods and materials have been described. All publications mentioned herein are incorporated herein by reference to disclose and described the methods and/or materials in connection with which the publications are cited.

(15) It must be noted that as used herein and in the appended claims, the singular forms a, and, and the include plural references unless the context clearly dictates otherwise.

(16) The publications discussed herein are provided solely for their disclosure prior to the filing date of the present application and each is incorporated by reference in its entirety. Nothing herein is to be construed as an admission that the present invention is not entitled to antedate such publication by virtue of prior invention. Further, the dates of publication provided may be different from the actual publication dates which may need to be independently confirmed.

(17) While the present invention has been described with reference to the specific embodiments thereof it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the invention. In addition, many modifications may be made to adopt a particular situation, material, composition of matter, process, process step or steps, to the objective spirit and scope of the present invention. All such modifications are intended to be within the scope of the claims appended hereto.