Positioning device for ostial lesions

• US 10,022,524 B2
• Filed: 06/01/2015
• Issued: 07/17/2018
• Est. Priority Date: 03/04/2004
• Status: Expired due to Fees

• Current Assignee: Y-Med, Inc. (Becton, Dickinson & Co)
• Original Assignee: Y-Med, Inc. (Becton, Dickinson & Co)
• Inventors: Shaked, Yoav, Solar, Ronald J.
• Primary Examiner(s): WEISBERG, AMY REGINA
• Application Number:
  US14/727,770
• Publication Number:
  US 20150265817A1
• Time in Patent Office: 1,142 Days
• Field of Search: 606108, 623 111, 623 123, 604508, 604509
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/821 Ostial stents
• CPC Class Codes: A61M 2025/0186 Catheters with fixed wires, i.e. so called "non-over-the-wire catheters"
• CPC Class Codes: A61M 2029/025 characterised by the guiding element
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

A device for positioning a catheter at an ostium. The device includes an attachment mechanism for direct attachment to the catheter at a location proximal to a treatment device positioned on the catheter, the attachment mechanism having a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end. The device also including a stopper element extending from the distal end of the attachment mechanism and projecting away from the longitudinal axis, the stopper element being bendable in a direction toward the proximal end of the attachment mechanism.

Claims

1. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism-and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein the stopper element comprises a spring wire with a proximal end and a distal end, wherein the attachment mechanism comprises a jacket that at least partially encloses the proximal end of the stopper element, and wherein the distal end of the stopper element is unenclosed by the attachment mechanism.

2. The device according to claim 1 wherein the stopper element is immovable along the longitudinal axis of the attachment mechanism.

3. The device according to claim 1 wherein the attachment mechanism is disposed radially outward from the catheter shaft.

4. The device according to claim 1 wherein the treatment device is a stent or a covered stent.

5. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein

the attachment mechanism comprises a first circular diameter prior to attachment to the catheter, and a second circular diameter smaller than the first circular diameter upon attachment to the catheter,

the attachment mechanism is attached to the catheter by changing the first circular diameter to the second circular diameter,

the second circular diameter is larger than a diameter of the catheter shaft,

and

the attachment mechanism is integral to the stopper element such that the attachment mechanism creates an anchoring portion of the device, and the stopper element creates an expandable portion of the device.

6. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein

the attachment mechanism comprises a first circular diameter prior to attachment to the catheter, and a second circular diameter smaller than the first circular diameter upon attachment to the catheter,

the attachment mechanism is attached to the catheter by changing the first circular diameter to the second circular diameter,

the second circular diameter is larger than a diameter of the catheter shaft,

and

the attachment mechanism comprises a coil.

7. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein

the attachment mechanism comprises a first circular diameter prior to attachment to the catheter, and a second circular diameter smaller than the first circular diameter upon attachment to the catheter,

the attachment mechanism is attached to the catheter by changing the first circular diameter to the second circular diameter,

the second circular diameter is larger than a diameter of the catheter shaft,

and

the attachment mechanism comprises a double helix.

8. The device according to claim 7 wherein the attachment mechanism comprises a stent-like configuration.

9. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein

the attachment mechanism comprises a first circular diameter prior to attachment to the catheter, and a second circular diameter smaller than the first circular diameter upon attachment to the catheter,

the attachment mechanism is attached to the catheter by changing the first circular diameter to the second circular diameter,

the second circular diameter is larger than a diameter of the catheter shaft,

and

the attachment mechanism comprises a braid.

10. The device according to claim 9 wherein the attachment mechanism comprises a tube.

11. The device according to claim 10 wherein the stopper element projects toward the proximal end of the attachment mechanism in a delivery configuration, and projects outwardly with respect to the longitudinal axis in a deployed configuration.

12. The device according to claim 11 wherein the attachment mechanism is urged to a smaller diameter when a force is applied to the proximal end.

13. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

and

a stopper element extending from the distal end of the attachment mechanism and, the stopper element being an extension of the attachment mechanism, a distal terminal end of the stopper element projecting away from the longitudinal axis and being bendable in a direction toward the proximal end of the attachment mechanism,

wherein the attachment mechanism comprises a wire mesh.

14. A device for positioning a catheter having a proximal handle at an ostium, the device comprising:

an attachment mechanism directly connected to a catheter shaft having a lumen at a location proximal to a treatment device positioned on a distal end of the catheter wherein the attachment mechanism has a proximal end, a distal end, and a longitudinal axis extending from the proximal end to the distal end;

a stopper element extending from the distal end of the attachment mechanism

wherein the stopper element is an extension of the attachment mechanism, the stopper element is bendable in a direction toward the proximal end of the attachment mechanism, and a distal terminal end of the stopper element projects away from the longitudinal axis;

and

further comprising one or more additional stopper elements.

15. The device according to claim 14 wherein at least two of the stopper elements are directly connected by a connecting element separate from the attachment mechanism.

16. The device according to claim 15 wherein the treatment device is a stent or a covered stent.

17. The device according to claim 16 wherein each of the at least two of the stopper elements directly connected by the connecting element has a distal end bendable in a direction toward the proximal end of the attachment mechanism.