Systems and methods for thrombus aspiration

Patent metadata

Field	Value
Publication number	US-12396741-B2
Application number	US-202217930430-A
Country	US
Kind code	B2
Filing date	Sep 8, 2022
Priority date	Sep 8, 2022
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

Systems and methods include positioning of a catheter lumen in a first position with respect to a thrombus, the catheter lumen defined by a catheter, initiating of evacuation of a tubing lumen, where the tubing lumen is not in fluid communication with the catheter lumen, determination that a pressure within the tubing lumen is equal to or less than a target aspiration pressure, and, in response to the determination that the pressure within the tubing lumen is equal to or less than a target aspiration pressure, automatic establishment of fluid communication between the tubing lumen and the catheter lumen.

First claim

What is claimed is:

1. A method comprising:
receiving a first command to position a catheter lumen in a position with respect to a thrombus, the catheter lumen defined by a catheter; and
while the catheter lumen is positioned in the position with respect to the thrombus:
receiving a second command to initiate evacuation of a tubing lumen while the tubing lumen is not in fluid communication with the catheter lumen;
determining while the tubing lumen is not in fluid communication with the catheter lumen, that a pressure within the tubing lumen is equal to or less than a target aspiration pressure; and
in response to the determination that the pressure within the tubing lumen is equal to or less than the target aspiration pressure while the tubing lumen is not in fluid communication with the catheter lumen, automatically establishing fluid communication between the tubing lumen and the catheter lumen.

2. A method according to claim 1 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter, determining whether the pressure within the tubing lumen is greater than a second pressure; and
if it is determined that the pressure within the tubing lumen is greater than the second pressure, automatically terminating fluid communication between the tubing lumen and the catheter lumen.

3. A method according to claim 2 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter and before determining whether the pressure within the tubing lumen is greater than the second pressure, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, automatically adjusting the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

4. A method according to claim 1 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, automatically adjusting the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

5. A method according to claim 1 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen, determining whether the pressure within the tubing lumen is greater than a second pressure; and
if it is determined that the pressure within the tubing lumen is greater than the second pressure, presenting an indication to an operator;
after presenting the indication, and while the pressure within the tubing lumen is greater than the second pressure, receiving a command from the operator; and
in response to receipt of the command, automatically terminating fluid communication between the tubing lumen and the catheter lumen.

6. A method according to claim 5 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen and before determining that the pressure within the tubing lumen is greater than the second pressure, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, automatically adjusting the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

7. A method according to claim 1 , wherein automatically establishing fluid communication between the tubing lumen and the catheter lumen comprises:
presenting a first indication to an operator;
after presenting the first indication, and while the pressure within the tubing lumen is equal to or less than the target aspiration pressure, receiving a third command from the operator to establish fluid communication between the tubing lumen and the catheter lumen; and
in response to receipt of the third command, automatically establishing fluid communication between the tubing lumen and the catheter lumen.

8. A method according to claim 7 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen, determining whether the pressure within the tubing lumen is greater than a second pressure; and
if it is determined that the pressure within the tubing lumen is greater than the second pressure, presenting a second indication to the operator;
after presenting the second indication, and while the pressure within the tubing lumen is greater than the second pressure, receiving a fourth command from the operator; and
in response to receipt of the fourth command, automatically terminating fluid communication between the tubing lumen and the catheter lumen.

9. A method according to claim 8 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen and before determining that the pressure within the tubing lumen is greater than the second pressure, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, automatically adjusting the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

10. A method according to claim 8 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen and before determining that the pressure within the tubing lumen is greater than the second pressure, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, presenting a third indication to the operator to adjust the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

11. A method according to claim 7 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, automatically adjusting the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

12. A method according to claim 7 , further comprising:
after automatically establishing fluid communication between the tubing lumen and the catheter lumen, determining whether the pressure within the tubing lumen is within a predefined range; and
if it is determined that the pressure within the tubing lumen is within the predefined range, presenting a second indication to the operator to adjust the position of the catheter lumen until the pressure within the tubing lumen is less than a threshold aspiration pressure.

Assignees

• Corindus Inc
• Siemens Healthineers Endovascular Robotics Inc

Inventors

• Blacker Steven J

Classifications

• A61B2017/22079

  with suction of debris · CPC title

• A61B2017/00212

  using remote controls · CPC title

• A61B2017/00022

  Sensing or detecting at the treatment site · CPC title

• A61B2090/064

  for measuring force, pressure or mechanical tension · CPC title

• A61B2034/301

  for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes · CPC title