IP Library › Granted Patent US 12,527,587
Granted Patent B2
US 12,527,587 · App. 18/665,380 · Granted Jan 20, 2026

Directional aspiration

Inventors: Vahid Saadat (Atherton, CA); William Jason Fox (San Mateo, CA); Michael Pare (Menlo Park, CA); Eyal Aklivanh (Menlo Park, CA); Neekon Saadat (Atherton, CA)
Assignee: Inquis Medical, Inc.
A61B17/22A61B17/00234A61B2017/00026A61B2017/0003A61B2017/00084A61B2017/00119A61B2017/00154A61B2017/00199A61B2017/00238A61B2017/00292A61B2017/00544A61B2017/22038A61B2017/22079
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Quick Facts
Patent No.
US 12,527,587
App. No.
18/665,380
Filed
May 15, 2024
Granted
Jan 20, 2026
Kind
B2
Art Unit
3771
USPC
606/127
Abstract

Methods for removing clot material by directional aspiration may include removing clot material from a side vessel while the suction catheter remains in the main vessel. These methods may include a steerable distal end region. In some cases the apparatuses and methods may include the use of a guide catheter and/or a guidewire in orienting the suction catheter to laterally capture clot material from a side vessel without having to enter the side vessel. Any of these methods may include optionally sensing and confirming clot material (e.g., electrically sensing).

Claims (27)

1 . A method of removing clot material, the method comprising:

advancing a suction catheter within a vessel, the suction catheter having an aspiration opening on a lateral side of the suction catheter, so that a distal end of the suction catheter extends within the vessel outside of a side vessel bifurcating from the vessel;

positioning the aspiration opening of the suction catheter adjacent to the side vessel bifurcation; and

applying suction through the aspiration opening of the suction catheter to remove clot material from the side vessel while the distal end of the suction catheter remains within the vessel, outside of the side vessel.

2 . The method of claim 1 , further comprising orienting the aspiration opening adjacent to an opening into the side vessel by eccentrically rotating the suction catheter around a diagnostic catheter and/or guidewire.

3 . The method of claim 1 , wherein advancing comprises advancing over a diagnostic catheter and/or over a guidewire.

4 . The method of claim 1 , wherein the aspiration opening of the suction catheter is on a tapered lateral side of the suction catheter.

5 . The method of claim 1 , wherein the aspiration opening of the suction catheter is eccentrically positioned on a lateral side of the suction catheter.

6 . The method of claim 1 , wherein the clot material is removed from the side vessel without entering the side vessel.

7 . The method of claim 1 , wherein applying suction comprises applying greater than 10 mmHg of suction.

8 . The method of claim 1 , wherein positioning the aspiration opening of the suction catheter adjacent to the side vessel comprise deflecting the suction catheter within the vessel so that the aspiration opening is adjacent to the bifurcation.

9 . The method of claim 1 , further comprising releasing a contrast from the suction catheter to visualize the side vessel.

10 . A method of removing clot material, the method comprising:

advancing a suction catheter within a vessel, the suction catheter having an aspiration opening on a tapered lateral side of the suction catheter;

orienting the aspiration opening of the suction catheter adjacent to an opening into a side vessel bifurcating from the vessel; and

applying suction through the aspiration opening to remove clot material from the side vessel while a distal end of the suction catheter remains in the vessel outside of the side vessel.

11 . The method of claim 10 , further comprising orienting the aspiration opening adjacent to the side vessel by eccentrically rotating the suction catheter around a diagnostic catheter and/or guidewire.

12 . The method of claim 10 , wherein advancing comprises advancing over a diagnostic catheter and/or a guidewire.

13 . The method of claim 10 , wherein the aspiration opening of the suction catheter is eccentrically positioned on a lateral side of the suction catheter.

14 . The method of claim 10 , wherein the clot material is removed from the side vessel without entering the side vessel.

15 . The method of claim 10 , wherein applying suction comprises applying greater than 10 mmHg of suction.

16 . The method of claim 10 , wherein positioning the aspiration opening of the suction catheter adjacent to the opening into the side vessel comprise deflecting the suction catheter within the primary vessel so that the aspiration opening is adjacent to the opening into the side vessel.

17 . The method of claim 10 , further comprising releasing a contrast from the suction catheter to visualize the side vessel.

18 . A method of removing clot material, the method comprising:

advancing a suction catheter within a vessel to side vessel bifurcating from the vessel, the suction catheter having an aspiration opening on a tapered lateral side of the suction catheter;

positioning the aspiration opening of the suction catheter adjacent to an opening into the side vessel by eccentrically rotating the suction catheter around a diagnostic catheter and/or guidewire; and

removing clot material from the side vessel by applying suction through the aspiration opening of the suction catheter while a distal end of the suction catheter remains within the vessel, outside of the side vessel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2024
From: SAADAT, VAHID; FOX, WILLIAM JASON; PARE, MICHAEL; AKLIVANH, EYAL; SAADAT, NEEKON
To: INQUIS MEDICAL, INC.
Reel/Frame 067865/0467 →
Continuity (3)
Continuation In Part PCTUS2023086322 · Dec 28, 2023
Provisional Application 63477556 · Dec 28, 2022
Related Publication 20240299048A1 · Sep 12, 2024
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