IP Library › Granted Patent US 12,433,639
Granted Patent B2
US 12,433,639 · App. 19/007,196 · Granted Oct 7, 2025

Methods and devices for puncturing tissue

Inventors: Gareth Davies (Toronto, CA); John Paul Urbanski (Toronto, CA); Ferryl Alley (Devonshire, BM); Bogdan Beca (Thornhill, CA)
Assignee: Boston Scientific Medical Device Limited
A61B17/3478A61B18/1492A61B90/39A61B2017/00247A61B2017/003A61B2017/22042A61B2017/3488A61B2018/00351A61B2090/3966
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Quick Facts
Patent No.
US 12,433,639
App. No.
19/007,196
Granted
Oct 7, 2025
Kind
B2
Abstract

Novel and unique medical devices and associated methods are disclosed, for a medical device for puncturing tissue at a tissue site. The medical device includes an elongate member having a distal section defining a distal section curved portion and a distal section straight portion. The distal section straight portion is distal to the distal section curved portion. An active tip is located at a distal end of the distal section. The active tip is operable to deliver energy to create a puncture through the tissue. The medical device includes a constant diameter layer. The distal section straight portion includes a minimum diameter portion located proximal to a constant diameter portion, and the constant diameter layer surrounds the minimum diameter portion.

Claims (48)

1. A medical device for puncturing a septum of a heart, the medical device comprising:

an elongate member including a wire, the elongate member having a proximal section, a distal section including an electrode, and a rail section between the proximal and distal sections;

the electrode operable to deliver energy to create a puncture through the septum; and

the rail section being configured to both act as a rail for supporting installation of one or more tubular members thereupon as well as to be maneuverable for enabling access to the septum;

wherein the distal section comprises a curved portion and a straight portion, the straight portion being distal to the curved portion;

wherein an outer diameter of the wire in the straight portion at a distal end of the straight portion is greater than an outer diameter of the wire in the curved portion at a distal end of the curved portion;

wherein the distal section is configured to automatically form a J-shape in a deployed state for anchoring the distal section being advanced through the puncture.

2. The medical device of claim 1 , wherein the outer diameter of the straight portion at the distal end of the straight portion is greater than an outer diameter of the straight portion at a proximal end of the straight portion.

3. The medical device of claim 1 , wherein the straight portion defines a reverse taper along at least a portion thereof.

4. The medical device of claim 1 , wherein the outer diameter of the straight portion at the distal end of the straight portion is the same as an outer diameter of the straight portion at a proximal end of the straight portion.

5. The medical device of claim 1 , wherein the electrode comprises an active tip proximate the distal end of the straight portion.

6. The medical device of claim 5 , wherein the active tip is dome-shaped.

7. A medical device for puncturing a septum of a heart, the medical device comprising:

an elongate member including a wire, the elongate member having a proximal section, a distal section, and a rail section between the proximal and distal sections;

an electrode operable to deliver energy to create a puncture through the septum; and

the rail section being configured to both act as a rail for supporting installation of one or more tubular members thereupon as well as to be maneuverable for enabling access to the septum;

wherein the distal section comprises a curved portion having a proximal end with a first outer diameter of the wire and a distal end having a second outer diameter of the wire;

wherein the distal section comprises a straight portion distal to the curved portion and including an atraumatic tip, the straight portion having a proximal end with a third outer diameter of the wire and a distal end having a fourth outer diameter of the wire;

wherein the first outer diameter and the fourth outer diameter are greater than the second outer diameter.

8. The medical device of claim 7 , wherein the fourth outer diameter is greater than the third outer diameter.

9. The medical device of claim 7 , wherein the fourth outer diameter is the same as the third outer diameter.

10. The medical device of claim 7 , wherein the distal section is J-shaped.

11. The medical device of claim 7 , wherein the stiffness of curved portion decreases between the proximal end of the curved portion and the distal end of the curved portion.

12. The medical device of claim 7 , wherein the distal section is configured to automatically form a J-shape in a deployed state for anchoring the distal section being advanced through the puncture.

13. The medical device of claim 7 , wherein the distal section is configured to automatically form a distal coil in a deployed state for anchoring the distal section being advanced through the puncture.

14. A medical device for puncturing a septum of a heart, the medical device comprising:

an elongate member including a wire, the elongate member having a proximal section, a distal section including an electrode, and a rail section between the proximal and distal sections;

the electrode operable to deliver energy to create a puncture through the septum and an atraumatic tip; and

the rail section being configured to both act as a rail for supporting installation of one or more tubular members thereupon as well as to be maneuverable for enabling access to the septum;

wherein the distal section comprises a curved portion and a straight portion, the straight portion being distal to the curved portion, the straight portion defining a proximal end where the wire has a first outer diameter and the straight portion defining a distal end where the wire has a second outer diameter;

wherein the first outer diameter is less than the second diameter and wherein the first and second outer diameters are each between about 0.13 mm to about 0.65 mm.

15. The medical device of claim 14 , wherein the straight portion includes a constant diameter portion.

16. The medical device of claim 14 , wherein the straight portion includes a minimum diameter portion.

17. The medical device of claim 14 , wherein the straight portion has a length of about 3 mm to about 10 mm.

18. The medical device of claim 14 , wherein the distal section is configured to automatically form a J-shape in a deployed state for anchoring the distal section being advanced through the puncture.

19. The medical device of claim 14 , wherein the distal section is configured to automatically form a distal coil in a deployed state for anchoring the distal section being advanced through the puncture.

20. A medical device for puncturing a septum of a heart, the medical device comprising:

an elongate member including a wire, the elongate member having a proximal section, a distal section including an electrode, and a rail section between the proximal and distal sections;

the electrode operable to deliver energy to create a puncture through the septum; and

the rail section being configured to both act as a rail for supporting installation of one or more tubular members thereupon as well as to be maneuverable for enabling access to the septum;

wherein the distal section comprises a curved portion and a straight portion, the straight portion being distal to the curved portion;

wherein a distal end of the wire in the straight portion defines an outer diameter that is greater than an outer diameter of a distal end of the wire in the curved portion;

wherein the curved portion is configured such that, upon deployment of the distal section of the elongate member from a confined state along an axis of advancement, the distal end of the straight portion curves away from the axis of advancement.

21. The medical device of claim 20 , wherein the elongate member is an electrically conductive guidewire.

22. The medical device of claim 20 , wherein the medical device further comprises a radiopaque marker positioned on the distal section of the elongate member.

23. The medical device of claim 22 , wherein the radiopaque marker is a helical coil surrounding the elongate member at the distal section.

24. The medical device of claim 20 , wherein the distal section is configured to automatically form a J-shape in a deployed state for anchoring the distal section being advanced through the puncture.

25. The medical device of claim 20 , wherein the distal section is configured to automatically form a distal coil in a deployed state for anchoring the distal section being advanced through the puncture.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2025
From: BAYLIS MEDICAL COMPANY, INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 070059/0693 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2025
From: DAVIES, GARETH; URBANSKI, JOHN PAUL; BECA, BOGDAN; ALLEY, FERRYL
To: BAYLIS MEDICAL COMPANY INC.
Reel/Frame 070047/0505 →
Continuity (7)
Continuation 18678567 · May 30, 2024
Continuation 17474415 · Sep 14, 2021
Continuation 16445790 · Jun 19, 2019
Continuation 14910525
Provisional Application 61863579 · Aug 8, 2013
Provisional Application 61863265 · Aug 7, 2013
Related Publication 20250127541A1 · Apr 24, 2025
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