IP Library Granted Patent US 12,599,406
Granted Patent B2
US 12,599,406 · App. 19/270,234 · Granted Apr 14, 2026

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 12,599,406
App. No.
19/270,234
Granted
Apr 14, 2026
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 (24)

1 . A medical device for creating a transseptal puncture within a patient's heart, the medical device comprising:

a multi-function guidewire 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 aid the creation of a puncture through a septum of the patient's heart; and

the rail section being configured to both act as a rail for supporting installation of one or more treatment tools thereupon as well as to be maneuverable for enabling access to the heart septum by the guidewire;

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

wherein a stiffness of the guidewire at a region in the straight portion is greater than a stiffness of the guidewire at a region in the curved portion;

wherein the distal section is configured to automatically form a coil or a J-shape in a deployed state for anchoring the distal section.

2 . The medical device of claim 1 , wherein a stiffness of the guidewire at a region in the rail section is greater than the stiffness of the guidewire at the region in the distal section curved portion.

3 . The medical device of claim 2 , wherein a stiffness of the guidewire at a region in the proximal section is less than the stiffness of the guidewire at the region in the rail section.

4 . The medical device of claim 1 , further comprising a radiofrequency (RF) generator for supplying the energy to the electrode.

5 . The medical device of claim 4 , wherein the supply of the energy is controlled through the use of a push button in communication with the generator.

6 . The medical device of claim 1 , further comprising a radiopaque marker positioned on the distal section of the guidewire.

7 . The medical device of claim 6 , wherein the radiopaque marker is a helical coil surrounding the guidewire at the distal section.

8 . A medical device for creating a transseptal puncture within a patient's heart, the medical device comprising:

a multi-function guidewire having at least a rail section and a distal section, wherein the rail section is proximal of the distal section, and wherein the distal section includes an electrode having an atraumatic tip;

the electrode operable to deliver energy to aid the creation of a puncture through a septum of the patient's heart; and

the rail section being configured to both act as a rail for supporting installation of one or more treatment tools thereupon as well as to be maneuverable for enabling access to the heart septum by the guidewire;

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

wherein at least part of the straight portion has a first stiffness and at least part of the curved portion has a second stiffness, and the first stiffness is greater than the second stiffness.

9 . The medical device of claim 8 , wherein at least part of the rail section of the guidewire has a third stiffness greater than the second stiffness.

10 . The medical device of claim 8 , wherein at least part of the rail section of the guidewire has a fourth stiffness greater than the first stiffness.

11 . The medical device of claim 8 , wherein the rail section of the guidewire is sufficiently stiff to enable puncturing the septum of the patient's heart from a superior approach.

12 . The medical device of claim 8 , wherein the rail section of the guidewire is sufficiently stiff to enable puncturing the septum of the patient's heart from an inferior approach.

13 . The medical device of claim 8 , wherein the guidewire is configured for electrical communication with a radiofrequency (RF) generator for supplying the energy to the electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2026
From: BAYLIS MEDICAL COMPANY INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 075066/0098 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2026
From: DAVIES, GARETH; URBANSKI, JOHN PAUL; BECA, BOGDAN; ALLEY, FERRYL
To: BAYLIS MEDICAL COMPANY INC.
Reel/Frame 074062/0293 →
Continuity (8)
Continuation 19007196 · Dec 31, 2024
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 20250339179A1 · Nov 6, 2025
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