Vascular treatment devices and associated systems and methods of use

Patent metadata

Field	Value
Publication number	US-12280227-B2
Application number	US-201917250607-A
Country	US
Kind code	B2
Filing date	Aug 9, 2019
Priority date	Aug 10, 2018
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

Devices, systems, and methods for treating a blood flow passage are discloses herein. In one example, a treatment device includes an expandable element configured to be positioned within the passage and a reinforcing element. The expandable element may have an expanded configuration in which the expandable element defines a lumen therethrough. The reinforcing element may be positioned within the lumen of the expandable element. The reinforcing element may be coupled to the expandable element such that expansion of the expandable element causes the reinforcing element to radially expand, thereby creating a perfusion lumen through the device.

First claim

We claim:

1. A device for treating a blood flow passage of a patient, the device comprising:
an expandable element configured to be positioned within the passage, the expandable element having a collapsed configuration and an expanded configuration in which the expandable element defines a lumen therethrough;
a reinforcing element positioned within the lumen of the expandable element, the reinforcing element having a collapsed configuration and an expanded configuration in which the reinforcing element defines a lumen therethrough; and
a connector having:
a first portion coupled to the reinforcing element at a first location disposed within the lumen of the expandable element,
a second portion coupled to the reinforcing element at a second location disposed within the lumen of the expandable element, and
an intermediate portion between the first and second portions, wherein the intermediate portion extends over a radially outer surface of the expandable element,

wherein the reinforcing element is coupled to the expandable element via the connector such that expansion of the expandable element causes the reinforcing element to radially expand, thereby creating a perfusion lumen through the device.

2. The device of claim 1 , wherein the device is configured such that expansion of the expandable element while the device is positioned within the passage pulls the reinforcing element towards its expanded configuration, thereby allowing blood flow through the lumen of the reinforcing element and the lumen of the expandable element while the expandable element is in the expanded configuration.

3. The device of claim 1 , wherein the expandable element causes radial expansion of the reinforcing element by applying a longitudinally oriented force to the reinforcing element.

4. The device of claim 3 , wherein the force is longitudinally extensive.

5. The device of claim 3 , wherein the force is longitudinally compressive.

6. The device of claim 1 , wherein the reinforcing element is mechanically coupled to the expandable element during delivery of the device through a sheath to a treatment site.

7. The device of claim 1 , wherein the expandable element is an inflatable element configured to expand when an inflation fluid is delivered to an interior region of the inflatable element.

8. The device of claim 1 , wherein the expandable element extends between first and second longitudinal ends, and wherein the expandable element comprises a fold at the first longitudinal end and a seam at the second longitudinal end.

9. The device of claim 1 , wherein the expandable element defines a single, continuous, annular inflation cavity.

10. The device of claim 1 , wherein the expandable element is a balloon.

11. The device of claim 1 , wherein the expandable element has a toroidal shape in the expanded configuration.

12. The device of claim 1 , wherein the reinforcing element is a laser-cut stent.

13. The device of claim 1 , wherein the intermediate portion of the connector extends substantially longitudinally along the radially outer surface of the expandable element.

14. The device of claim 1 , wherein the connector comprises at least one of a strand, a suture, a wire, a thread, a tether, a fiber, or a filament.

15. The device of claim 1 , wherein expansion of the expandable element causes the connector to pull the first and second locations toward one another, thereby causing the reinforcing element to radially expand.

16. A device for treating a blood flow passage of a patient, the device comprising:
an expandable element configured to be positioned within the passage, the expandable element having a collapsed configuration and an expanded configuration in which the expandable element defines a lumen therethrough;
a reinforcing element positioned within the lumen of the expandable element, the reinforcing element having a collapsed configuration and an expanded configuration in which the reinforcing element defines a lumen therethrough; and
a connector having:
a first portion coupled to the reinforcing element at a first location disposed within the lumen of the expandable element, wherein the first location comprises a first eyelet of the reinforcing element,
a second portion coupled to the reinforcing element at a second location disposed within the lumen of the expandable element, wherein the second location comprises a second eyelet of the reinforcing element, and
an intermediate portion between the first and second portions, wherein the intermediate portion extends over a radially outer surface of the expandable element,

wherein the reinforcing element is coupled to the expandable element via the connector such that expansion of the expandable element causes the reinforcing element to radially expand, thereby creating a perfusion lumen through the device, and
wherein a longitudinal distance between the first and second eyelets decreases in response to expansion of the expandable element.

17. The device of claim 1 , further comprising a plurality of connectors, each having first and second portions coupled to the reinforcing element and an intermediate portion between the first and second portions, the intermediate portion extending over the radially outer surface of the expandable element.

18. The device of claim 1 , further comprising a travel limiter configured to limit longitudinal elongation and/or compression of the reinforcing element in response to expansion of the expandable element.

19. The device of claim 18 , wherein the travel limiter comprises one or more pairs of opposing eyelets coupled to one another via a flexible connector.

20. The device of claim 1 , further comprising a valve coupled to the reinforcing element and/or the expandable element, wherein the valve is configured to control fluid flow through the lumen of the reinforcing element.

21. A device for treating cardiac or cardiovascular disease, the device comprising:
an expandable element comprising an outer wall and an inner wall, the outer and inner walls meeting at their respective longitudinal ends, wherein the expandable element has a collapsed configuration and an expanded configuration, and wherein the inner wall defines a lumen extending along a longitudinal axis of the expandable element;
a reinforcing element positioned within the lumen; and
a connector having:
a first portion coupled to the reinforcing element at a first location disposed within the lumen of the expandable element,
a second portion coupled to the reinforcing element at a second location disposed within the lumen of the expandable element, and
an intermediate portion between the first and second portions, wherein the intermediate portion extends over a radially outer surface of the expandable element,

wherein expansion of the expandable element from a collapsed configuration to an expanded configuration causes the reinforcing element to radially expand.

22. A system for treating a blood flow passage of a patient, the system comprising:
a treatment element comprising:
an expandable element comprising an outer wall and an inner wall, the outer and inner walls meeting at their respective longitudinal ends, wherein the expandable element has a collapsed configuration and an expanded configuration, and wherein the inner wall defines a lumen extending along a longitudinal axis of the expandable element, and
a reinforcing element positioned within the lumen,
a connector having:
a first portion coupled to the reinforcing

Assignees

• Foundry Llc

Inventors

• Gifford Iii Hanson S
• Gifford Edward Dewitt
• Levering Vrad W

Classifications

• A61M2025/1095

  with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft · CPC title

• A61F2/2433

  using balloon catheter · CPC title

• A61F2/2418

  Scaffolds therefor, e.g. support stents · CPC title

• A61M2025/1097

  with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon · CPC title

• A61M25/104 Primary

  used for angioplasty · CPC title