Devices and methods for assisting medical treatments

• US 9,561,121 B2
• Filed: 01/03/2013
• Issued: 02/07/2017
• Est. Priority Date: 01/04/2012
• Status: Active Grant

• Current Assignee: Rapid Medical Ltd.
• Original Assignee: Rapid Medical Ltd.
• Inventors: Sudin, Yuri, Mayer, Danel, Eckhouse, Ronen
• Primary Examiner(s): Woo, Julian W
• Assistant Examiner(s): Paez, Lucas
• Application Number:
  US14/370,369
• Publication Number:
  US 20140343663A1
• Time in Patent Office: 1,496 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/12031 complete occlusion
• CPC Class Codes: A61B 17/1204 temporary occlusion
• CPC Class Codes: A61B 17/12113 within an aneurysm
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2002/825 having longitudinal struts
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

An intravascular device (100) includes an elongated shaft (3) extending in an axial direction and an expandable braided arrangement (110) of a plurality of filaments. The braided arrangement has a proximal end, a distal end (1), and an intermediate region therebetween. The intravascular device can include an endpiece (112-1) located proximate an intersection of the elongated shaft and the braided arrangement. The endpiece can be configured to orient the filaments in a substantially single file continuum. At a junction with the endpiece, the filaments can initially extend in a substantially parallel, non-crossing manner, and as the filaments extend toward the intermediate region, the initially extending non-crossing filaments can cross each other.

Claims

1. An intravascular device, comprising:

an elongated shaft extending in an axial direction and being formed of a plurality of filaments, wherein the plurality of filaments of the elongated shaft are arranged in a single file continuum;

an expandable braided arrangement of the plurality of filaments, the braided arrangement having a proximal end, a distal end, and an intermediate region therebetween; and

a transition region of the plurality of filaments at an intersection of the elongated shaft and the braided arrangement, the plurality of filaments on one side of the transition region being oriented in a substantially parallel, non-crossing manner, and the plurality of filaments on an opposing side of the transition region crossing each other, and wherein the device is configured such that the plurality of filaments on an elongated shaft-side of the transition is substantially non-expandable and the plurality of filaments on a braided side of the transition is expandable.

2. The intravascular device of claim 1, further comprising a flexible cover surrounding the expandable braided arrangement.

3. The intravascular device of claim 1, further comprising a control member for permitting selective force application to the expandable braided arrangement in order to enable a selective variability in filament density.

4. The intravascular device of claim 3, wherein the filament density is variable between a liquid permeable density and a substantially liquid impermeable density.

5. The intravascular device of claim 1, wherein the plurality of filaments includes at least four filaments.

6. The intravascular device of claim 1, wherein the plurality of filaments includes at least six filaments.

7. The intravascular device of claim 1, wherein the plurality of filaments includes at least twelve filaments.

8. An intravascular device, comprising:

an expandable braided arrangement of a plurality of filaments, the braided arrangement having a proximal end, a distal end, and an intermediate region therebetween, and wherein the plurality of filaments in the intermediate region cross each other;

a coiled elongated shaft made up of the plurality of the filaments, wherein the plurality of filaments of the coiled elongated shaft are arranged in a single file continuum; and

a transition region between the proximal end of the expandable braided arrangement and the coiled elongated shaft, wherein in the transition region the plurality of filaments are bent to transition from a single file continuum on a shaft-side of the transition to a stacked orientation, and wherein on the braided side of the transition, the plurality of filaments cross each other and are arranged in an expandable manner, and on the coiled elongated side of the transition, the plurality of filaments are configured to be substantially non-expandable.

9. The intravascular device of claim 8, further comprising a flexible cover surrounding the expandable braided arrangement.

10. The intravascular device of claim 8, further comprising a control member for permitting selective force application to the expandable braided arrangement in order to enable a selective variability in filament density.

11. The intravascular device of claim 10, wherein the filament density is variable between a liquid permeable density and a substantially liquid impermeable density.

12. The intravascular device of claim 8, wherein the plurality of filaments includes at least four filaments.

13. The intravascular device of claim 8, wherein the plurality of filaments includes at least six filaments.

14. The intravascular device of claim 8, wherein the plurality of filaments includes at least twelve filaments.