# US 11,076,944 B2 · Methods and systems for irrigating and capturing particulates during heart pump implantation

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- Number: US 11,076,944 B2
- Document ID: US11076944B2
- Status: Granted
- Kind: B2
- Application number: 16/363,871
- Filed: 2019-03-25
- Published: 2019-09-26
- Granted: 2021-08-03
- Earliest claimed: 2018-03-26
- Assignees: Tc1 LLC
- Applicants: Tc1 LLC
- Inventors: Stephen Franklin; Rachel Keen
- Web page: https://patentgrep.com/patent/US11076944B2

## CPC

- A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)}
- A61F 2/013: {Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting}
- A61M 1/77: {Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463)}
- A61M 3/02: Enemata; Irrigators
- A61M 60/178: drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
- A61M 60/232: Centrifugal pumps
- A61M 60/237: the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
- A61M 60/585: User interfaces
- A61M 60/857: Implantable blood tubes
- A61M 60/878: Electrical connections within the patient's body
- A61M 60/88: Percutaneous cables
- A61B 17/221: Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)}
- A61B 17/32053: {Punch like cutting instruments, e.g. using a cylindrical or oval knife (A61B17/326 takes precedence; trepans A61B17/1695)}
- A61B 2017/00243: {cardiac}
- A61B 2017/00247: {Making holes in the wall of the heart, e.g. laser Myocardial revascularization}
- A61B 2017/00287: {Bags for minimally invasive surgery}
- A61B 2017/3425: {for internal organs, e.g. heart ports}
- A61B 2217/007: with irrigation system
- A61F 2/011: {Instruments for their placement or removal}
- A61F 2002/016: {made from wire-like elements}
- A61F 2250/001: for adjusting a diameter
- A61M 2210/125: Heart
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

The invention relates generally to methods and systems for irrigating or capturing particulates during heart pump implantation, and more specifically relates to irrigating, capturing, and removing particulates that may be released when coring a patient's heart tissue. In one aspect, a method for capturing particulates during heart pump implantation is provided that includes inserting a removable particulate capture device into a patient's heart prior to a coring procedure upon the patient's heart. The removable particulate capture device includes an expandable basket movable between collapsed and expanded configurations. The method further includes expanding the expandable basket to the expanded configuration from the collapsed configuration when the removable particulate capture device is positioned within the patient's heart to capture the particulates released during the coring procedure. The method includes removing the expandable basket with the captured particulates from the patient's heart through a cored opening.

## Claims

### Claim 1

A method for capturing particulates during heart pump implantation, the method comprising:
attaching a ventricular cuff to a patient's heart;
with the ventricular cuff attached to the patient's heart, inserting a removable particulate capture device through the ventricular cuff into a ventricle of the patient's heart prior to a coring procedure upon the patient's heart, the removable particulate capture device comprising an expandable basket movable between collapsed and expanded configurations;
expanding the expandable basket within the ventricle to the expanded configuration from the collapsed configuration;
conducting the coring procedure;
capturing, within the ventricle, particulates released during and/or after the coring procedure within the expandable basket; and
removing the expandable basket with the captured particulates from the ventricle.

### Claim 2 (depends on 1)

The method of claim 1, further comprising collapsing the expandable basket to the collapsed configuration from the expanded configuration within the ventricle prior to removing the expandable basket from the ventricle.

### Claim 3 (depends on 1)

The method of claim 1, further comprising attaching an inflow cannula of a heart pump to the patient's heart after removing the expandable basket from the ventricle.

### Claim 4 (depends on 1)

The method of claim 1, wherein expanding the expandable basket to the expanded configuration comprises expanding the expandable basket until the expandable basket contacts inner walls of the ventricle.

### Claim 5 (depends on 1)

The method of claim 1, further comprising collapsing the expandable basket to the collapsed configuration from the expanded configuration prior to inserting the removable particulate capture device within the patient's heart.

### Claim 6 (depends on 1)

The method of claim 1, wherein conducting the coring procedure comprises coring a portion of the patient's heart with a surgical coring tool having a lumen through which the removable particulate capture device extends into the ventricle during the coring of the portion of the patient's heart.

### Claim 7 (depends on 1)

The method of claim 1, further comprising creating an access site through a surface of the patient's heart that the removable particulate capture device is inserted through into the ventricle.

### Claim 8 (depends on 7)

The method of claim 7, wherein the access site is different than a second access site for the coring procedure.

### Claim 9 (depends on 1)

The method of claim 1, wherein the expandable basket comprises a mesh basket.

### Claim 10 (depends on 1)

The method of claim 1, wherein the expandable basket comprises self-expandable structural frame members.

### Claim 11 (depends on 1)

The method of claim 1, wherein expanding the expandable basket to the expanded configuration comprises inflating a balloon to expand the expandable basket.

### Claim 12 (depends on 1)

The method of claim 1, wherein expanding the expandable basket to the expanded configuration comprises axially moving a hub relative to a delivery shaft, the hub being coupled to structural frame members of the expandable basket and the delivery shaft.

### Claim 13 (depends on 1)

The method of claim 1, wherein inserting the removable particulate capture device into the ventricle comprises inserting a delivery catheter into the ventricle.

### Claim 14 (depends on 13)

The method of claim 13, wherein the delivery catheter is configured to surround at least a portion of the removable particulate capture device.

### Claim 15 (depends on 1)

The method of claim 1, further comprising inserting a removable tissue irrigating device through the ventricular cuff into the ventricle, wherein the removable tissue irrigating device is configured to irrigate particulates released into the ventricle during and/or after the coring procedure.