IP Library › Granted Patent US 12,420,060
Granted Patent B2
US 12,420,060 · App. 17/962,785 · Granted Sep 23, 2025

Direct stream hydrodynamic catheter system

Inventors: Michael J. Bonnette (Minneapolis, MN); Eric J. Thor (Arden Hills, MN); Debra M. Kozak (Forest Lake, MN); Douglas J. Ball (Blaine, MN); Stephen E. Weisel (Brook Park, MN); David B. Morris (Anoka, MN); Richard R. Prather (St. Michael, MN)
Assignee: BOSTON SCIENTIFIC LIMITED
A61M25/0068A61B17/32037A61M25/0026A61M25/007A61B2017/22068A61B2017/22079A61B2217/005A61B2217/007A61M2025/0004A61M2025/0073A61M25/10
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Quick Facts
Patent No.
US 12,420,060
App. No.
17/962,785
Granted
Sep 23, 2025
Kind
B2
Abstract

A direct stream hydrodynamic catheter system is provided for the removal of thrombus, lesions and the like including provisions for the infusion of drugs, lysing fluids and the like into a blood vessel. Physician controlled powered direct fluid jet streams emanate from a fluid jet emanatory in the form of robust radially directed fluid jet streams to impinge upon and ablate difficult and strong thrombus and lesions within a blood vessel. Effluent aspiration is controlled by an exhaust regulator in the form of a roller pump, but effluent removal can be assistingly influenced by the fluid pressure associated with the radially directed fluid jet streams.

Claims (39)

1. A medical device, comprising:

a catheter body having a proximal portion, a distal portion and a lumen extending therein;

a tubular member positioned within the lumen of the catheter body;

a fluid jet emanator positioned within the lumen of the catheter body, the fluid jet emanator coupled to a distal end region of the tubular member, wherein the catheter body further comprises an inflow orifice formed through a wall of the catheter body adjacent to the fluid jet emanator;

a balloon disposed along the catheter body and positioned distally of both the inflow orifice and the fluid jet emanator;

wherein the fluid jet emanator includes one or more distally-directed jet orifices; and

wherein the distally-directed jet orifices are configured to provide for automatic inflation of the balloon.

2. The medical device of claim 1 , wherein the fluid jet emanator includes one or more proximally-directed jet orifices.

3. The medical device of claim 1 , wherein the fluid jet emanator includes one or more radially-directed jet orifices.

4. The medical device of claim 3 , wherein the catheter body includes one or more holes that are radially-aligned with the radially-directed jet orifices.

5. The medical device of claim 1 , wherein a balloon inflation orifice is formed in the catheter body.

6. The medical device of claim 5 , where the balloon inflation orifice is disposed distally of the fluid jet emanator.

7. The medical device of claim 1 , wherein the balloon is a self-inflating balloon.

8. The medical device of claim 1 , wherein the inflow orifice is located proximal to the fluid jet emanator.

9. A medical device, comprising:

a catheter body a lumen formed therein;

a tubular member positioned within the lumen of the catheter body;

a fluid jet emanator positioned within the lumen of the catheter body, the fluid jet emanator having a plurality of jet orifices formed therein;

wherein the catheter body further comprises an inflow orifice formed through a wall of the catheter body, the inflow orifice being disposed proximally of the fluid jet emanator;

wherein the catheter body further comprises an outflow orifice;

wherein the catheter body further comprises a balloon inflation orifice formed through the wall of the catheter body, the balloon inflation orifice being disposed distally of the fluid jet emanator;

a balloon disposed along the catheter body and positioned distally of the inflow orifice, the outflow orifice, and the fluid jet emanator;

wherein the plurality of jet orifices include one or more distally-directed jet orifices; and

wherein the distally-directed jet orifices are configured to provide for automatic inflation of the balloon.

10. The medical device of claim 9 , wherein the plurality of jet orifices include one or more proximally-directed jet orifices.

11. The medical device of claim 9 , wherein the plurality of jet orifices include one or more radially-directed jet orifices.

12. The medical device of claim 11 , wherein the catheter body includes one or more holes that are radially-aligned with the radially-directed jet orifices.

13. The medical device of claim 9 , wherein the balloon inflation orifice is disposed proximally of the balloon.

14. A medical device, comprising:

a catheter body a lumen formed therein;

a tubular member positioned within the lumen of the catheter body;

a fluid jet emanator positioned within the lumen of the catheter body;

wherein the fluid jet emanator comprise a plurality of jet orifices including one or more proximally-directed jet orifices, one or more radially-directed jet orifices, and one or more distally-directed jet orifices;

wherein the catheter body further comprises an inflow orifice formed through a wall of the catheter body, the inflow orifice being disposed proximally of the fluid jet emanator;

wherein the catheter body further comprises an outflow orifice;

wherein the catheter body further comprises a balloon inflation orifice formed through the wall of the catheter body, the balloon inflation orifice being disposed distally of the fluid jet emanator;

a balloon disposed along the catheter body and positioned distally of the inflow orifice, the outflow orifice, and the fluid jet emanator; and

wherein the distally-directed jet orifices are configured to provide for automatic inflation of the balloon.

15. The medical device of claim 14 , wherein the catheter body includes one or more holes that are radially-aligned with the radially-directed jet orifices.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2023
From: BOSTON SCIENTIFIC LIMITED
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 065580/0083 →
Continuity (6)
Continuation 16440949 · Jun 13, 2019
Continuation 15452328 · Mar 7, 2017
Division 14176814 · Feb 10, 2014
Division 12933520
Provisional Application 61070095 · Mar 20, 2008
Related Publication 20230031241A1 · Feb 2, 2023
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