IP Library Granted Patent US 7,549,974
Granted Patent B2
US 7,549,974 · App. 10/449,695 · Granted Jun 23, 2009

Device and method for medical interventions of body lumens

Assignee: The Board of Trustees of the Leland Stanford Junior University
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Quick Facts
Patent No.
US 7,549,974
App. No.
10/449,695
Granted
Jun 23, 2009
Kind
B2
Abstract

A directional balloon is provided that can be used for a medical intervention of a body lumen. In one aspect, the directional balloon inflates in a distal to proximal direction and deflates in a proximal to distal direction. In another aspect, the directional balloon inflates in a proximal to distal direction and deflates in a distal to proximal direction. The directional balloon is capable of providing an occlusive seal to protect against embolization. A suction catheter with a control means is provided to provide suction in a controlled fashion in a body lumen. The suction catheter is used during periods of a medical intervention that risks distal embolization. When turned on, the suction catheter is capable of removing unwanted materials. The suction means could be operated by a control means.

Claims (22)

1. A device for a medical intervention of a body lumen, comprising:

a directional balloon adapted to be positioned in said body lumen, wherein said directional balloon comprises only a single inflatable section between a proximal end and a distal end of said directional balloon and said directional balloon has varying elasticity between said proximal and distal ends, whereby the varying elasticity results in: (i) the radial inflation of said directional balloon being defined to radially inflate axially in a proximal to distal direction with respect to said directional balloon, and the radial deflation of said directional balloon being defined to radially deflate axially in a distal to proximal direction with respect to said directional balloon, or wherein (ii) the radial inflation of said directional balloon being defined to radially inflate axially in a distal to proximal direction with respect to said directional balloon, and the radial deflation of said directional balloon being defined to radially deflate axially in a proximal to distal direction with respect to said directional balloon.

2. The device as set forth in claim 1 , further comprising a means to provide a milking action of said directional balloon.

3. The device as set forth in claim 1 , wherein said directional balloon prevents distal embolization.

4. The device as set forth in claim 1 , wherein said directional balloon is guided into said body lumen by means of a guidewire.

5. The device as set forth in claim 1 , wherein said directional balloon comprises at least one non-uniform material.

6. The device as set forth in claim 1 , wherein said directional balloon comprises different layers of materials.

7. The device as set forth in claim 1 , wherein said directional balloon comprises different diameters along its linear axis.

8. The device as set forth in claim 1 , wherein said directional balloon comprises a material that can be apposed to the wall of said body lumen.

9. A method for a medical intervention of a body lumen, comprising the step of:

providing a directional balloon having only a single inflatable section between a proximal end and a distal end of said directional balloon and said directional balloon having varying elasticity between said proximal and distal ends;

using said directional balloon in said body lumen; and

inflating said directional balloon, whereby said inflation is defined to radially inflate said directional balloon axially in a proximal to distal direction with respect to said directional balloon, and the radial deflation of said directional balloon is defined to radially deflate axially in a distal to proximal direction with respect to said directional balloon, or wherein (ii) the radial inflation of said directional balloon is defined to radially inflate axially in a distal to proximal direction with respect to said directional balloon, and the radial deflation of said directional balloon is defined to radially deflate axially in a proximal to distal direction with respect to said directional balloon.

10. The method as set forth in claim 9 , wherein said at least a portion of said directional balloon provides an occlusion seal with said body lumen.

11. The method as set forth in claim 10 wherein said occlusive seal is positioned distal to a region in said body lumen that requires said medical intervention.

12. The method as set forth in claim 9 , further comprising the step of providing a milking action of said directional balloon.

13. The method as set forth in claim 9 , wherein said directional balloon is placed across a region that requires said medical intervention.

14. The method as set forth in claim 9 , further comprising the step of providing a suction means wherein said suction means is capable of providing a distal to a proximal suction to remove unwanted materials during periods of said medical intervention that risks distal embolization.

15. The method as set forth in claim 9 , further comprising the step of providing a filter means to filter out unwanted materials from said body lumen.

16. The method as set forth in claim 9 , wherein said directional balloon is used to appose a material to the wall of said body lumen.

17. The method as set forth in claim 9 , wherein said directional balloon is used to manipulate unwanted materials within said body lumen.

18. The method as set forth in claim 9 , wherein said directional balloon is used to manipulate an inserted device within said body lumen.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2003
From: NAYAK, ASHA SHRINIVAS
To: BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY, THE
Reel/Frame 014655/0412 →
Continuity (2)
Provisional Application 6038445100 · Jun 1, 2002
Related Publication 20040049152A1 · Mar 11, 2004