# US 11,305,387 B2 · Systems and methods for treating aneurysms

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- Number: US 11,305,387 B2
- Document ID: US11305387B2
- Status: Granted
- Kind: B2
- Application number: 16/949,564
- Filed: 2020-11-03
- Published: 2021-05-06
- Granted: 2022-04-19
- Earliest claimed: 2019-11-04
- Assignees: Covidien LP
- Applicants: Covidien LP
- Inventors: Syamala Rani Pulugurtha; Gopan Patel; Erik Skillrud; Ujwal Jalgaonkar; Eric Mintz; Junwei Li
- Web page: https://patentgrep.com/patent/US11305387B2

## CPC

- A61B 17/12113: {within an aneurysm}
- A61B 17/12031: {complete occlusion}
- A61B 17/1214: {Coils or wires}
- A61B 17/12145: {having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526)}
- A61B 17/12172: {having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526)}
- A61B 17/12186: {liquid materials adapted to be injected}
- A61B 17/12168: {having a mesh structure (A61B17/1214 takes precedence)}
- A61B 17/12181: {formed by fluidized, gelatinous or cellular remodelable materials, e.g. embolic liquids, foams or extracellular matrices}
- A61B 2017/00526: {Methods of manufacturing}
- A61B 2017/00557: {inflatable (A61B2017/22051 takes precedence)}
- A61B 2017/00862: {elastic or resilient}
- A61B 2017/00929: {isolating electrical current}
- A61B 2017/12054: {Details concerning the detachment of the occluding device from the introduction device}
- A61B 2017/12063: {electrolytically detachable}
- A61B 2017/1209: {detachable by electrical current or potential, e.g. electroactive polymer}
- A61B 2090/376: {using X-rays, e.g. fluoroscopy}
- A61B 2090/3966: {Radiopaque markers visible in an X-ray image}
- B23P 19/047: {for flexible profiles, e.g. sealing or decorating strips in grooves or on other profiles by devices moving along the flexible profile (hand tools therefor B25B27/0092)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)

## Abstract

An aneurysm treatment system can include an occlusive member configured to be positioned within an aneurysm sac, and a distal conduit coupled to the occlusive member and having a first lumen extending therethrough. A proximal conduit has a second lumen extending therethrough and is positioned adjacent the distal conduit so that the first lumen is in fluid communication with the second lumen. A coupler extends between the distal conduit and the proximal conduit. The coupler may be ruptured to permit the proximal conduit and the distal conduit to be separated from one another.

## Claims

### Claim 1

A treatment system comprising:
an occlusive implant configured to be positioned within an aneurysm sac;
a distal conduit coupled to the occlusive implant and having a first lumen extending therethrough;
a proximal conduit having a second lumen extending therethrough, the proximal conduit being in fluid communication with the first lumen such that an embolic element can be delivered to the aneurysm sac through the proximal conduit and the distal conduit; and
an elastic coupler extending between and releasably coupling the distal conduit and the proximal conduit, the coupler configured to at least partially rupture, thereby decoupling the proximal conduit and the distal conduit from one another.

### Claim 2 (depends on 1)

The treatment system of claim 1, wherein a first end of the coupler is attached to a distal end portion of the proximal conduit and a second end of the coupler is attached to a proximal end portion of the distal conduit.

### Claim 3 (depends on 1)

The treatment system of claim 1, wherein the coupler comprises an inflatable element.

### Claim 4 (depends on 1)

The treatment system of claim 1, wherein the coupler comprises a rupture zone along which the coupler is configured to rupture, the rupture zone comprising one or more perforations in the coupler.

### Claim 5 (depends on 1)

The treatment system of claim 1, further comprising an infusion shaft having a third lumen in fluid communication with an interior volume defined by the coupler, the infusion shaft configured to deliver fluid to the interior volume to expand the coupler.

### Claim 6 (depends on 1)

The treatment system of claim 1, further comprising an expandable element underlying the coupler, the expandable element configured to rupture the coupler when expanded from a low-profile configuration to an expanded configuration.

### Claim 7 (depends on 1)

The treatment system of claim 1, wherein the occlusive implant comprises an expandable mesh having a constrained state for delivery to the aneurysm sac and an expanded state in which at least a portion of the mesh is configured to be disposed across a neck of the aneurysm.

### Claim 8 (depends on 1)

The treatment system of claim 1, wherein the occlusive implant has an aperture at a distal portion thereof, and wherein the distal conduit extends through the aperture.

### Claim 9

A treatment system comprising:
an occlusive member configured to be positioned at a treatment site;
a distal conduit coupled to the occlusive member and having a first lumen extending therethrough;
a proximal conduit having a second lumen extending therethrough, the proximal conduit being in fluid communication with the first lumen; and
a coupler extending between the distal conduit and the proximal conduit, the coupler comprising an inflatable element and configured to at least partially deform or rupture, thereby decoupling the proximal conduit and the distal conduit from one another.

### Claim 10 (depends on 9)

The treatment system of claim 9, wherein the coupler comprises a rupture zone along which the coupler is configured to rupture, the rupture zone comprising one or more perforations in the coupler.

### Claim 11 (depends on 9)

The treatment system of claim 9, further comprising an infusion shaft having a third lumen in fluid communication with an interior volume defined by the coupler, the infusion shaft configured to deliver fluid to the interior volume to expand the coupler.

### Claim 12 (depends on 9)

The treatment system of claim 9, further comprising an expandable element underlying the coupler, the expandable element configured to rupture the coupler when expanded from a low-profile configuration to an expanded configuration.

### Claim 13 (depends on 9)

The treatment system of claim 9, wherein the occlusive member comprises an expandable mesh having a constrained state for delivery to an aneurysm and an expanded state in which at least a portion of the mesh is configured to be disposed across a neck of the aneurysm.

### Claim 14 (depends on 9)

The treatment system of claim 9, wherein the occlusive member has an aperture at a distal portion thereof, and wherein the distal conduit extends through the aperture.

### Claim 15

A treatment system comprising:
an occlusive member configured to be positioned at a treatment site, the occlusive member comprising a proximal hub and a distal conduit coupled thereto;
a proximal conduit releasably coupled to the distal conduit via a severable coupler such that the proximal conduit and the distal conduit are in fluid communication with one another while the coupler is in an unsevered state, wherein the proximal conduit and the distal conduit are separable from one another while the coupler is in a severed state, and wherein the coupler comprises an inflatable element.

### Claim 16 (depends on 15)

The treatment system of claim 15, wherein the coupler comprises a rupture zone along which the coupler is configured to rupture, the rupture zone comprising one or more perforations in the coupler.

### Claim 17 (depends on 15)

The treatment system of claim 15, further comprising an infusion shaft having a third lumen in fluid communication with an interior volume defined by the coupler, the infusion shaft configured to deliver fluid to the interior volume to expand the coupler.

### Claim 18 (depends on 15)

The treatment system of claim 15, further comprising an expandable element underlying the coupler, the expandable element configured to rupture the coupler when expanded from a low-profile configuration to an expanded configuration.