Methods and systems for irrigating and capturing particulates during heart pump implantation

Patent metadata

Field	Value
Publication number	US-11076944-B2
Application number	US-201916363871-A
Country	US
Kind code	B2
Filing date	Mar 25, 2019
Priority date	Mar 26, 2018
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

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.

First claim

What is claimed is:

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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

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

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

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

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

12. 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.

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

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

15. 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.

Assignees

• Tc1 Llc

Inventors

• Franklin Stephen
• Keen Rachel

Classifications

• A61B17/3423 Primary

  Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247) · CPC title

• A61B17/32053

  Punch like cutting instruments, e.g. using a cylindrical or oval knife (A61B17/326 takes precedence; trepans A61B17/1695) · CPC title

• A61M3/02

  Enemata; Irrigators · CPC title

• A61M1/77

  Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463) · CPC title

• A61F2/013 Primary

  Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting · CPC title