IP Library › Granted Patent US 12,636,119
Granted Patent B2
US 12,636,119 · App. 18/315,151 · Granted May 26, 2026

Radiofrequency perforation apparatus

Inventors: Gareth Davies (Toronto, CA); John Paul Urbanski (Toronto, CA)
Assignee: Boston Scientific Medical Device Limited
A61B90/39A61B5/064A61B18/1492A61M25/0108A61M25/0127A61B2018/00077A61B2018/1412A61B90/37A61B2090/3925A61B2090/3954A61B2090/3966A61B2217/005A61B2217/007A61B2218/002
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Quick Facts
Patent No.
US 12,636,119
App. No.
18/315,151
Granted
May 26, 2026
Kind
B2
Abstract

Medical devices are disclosed having improved visualization of a portion of the medical device insertable into a patient's body while minimizing obstruction of fluid flow through a lumen of the device and while minimizing an increase in the outer diameter of the device attributable to the feature providing improved visualization. The device can include, for example, an imaging marker distal to lumen openings (exit ports), or, where the device comprises a tube, such as a metallic tube, an imaging marker embedded into a wall of the tube. Another embodiment includes attaching a marker to the surface on the inside of a lumen of a medical device without embedding the marker. Various alternative embodiments, methods and applications of using such devices are disclosed as well.

Claims (27)

1 . A medical device for creating a perforation in a tissue of a septum of a heart, the medical device comprising:

an elongated member comprising a metallic tubular member and having a proximal end and a distal end and defining a lumen extending substantially between the proximal and distal ends, and an electrical insulating layer covering the metallic tubular member;

a functional tip located at the distal end of the elongated member and having an atraumatic distal tip, the functional tip including a radiopaque imaging marker comprising a platinum iridium alloy, and the functional tip operable as an electrode for delivering energy to tissue; and

a lateral side port located proximal of the atraumatic distal tip of the functional tip, the lateral side port being in fluid communication with the lumen of the elongated member, wherein the lateral side port is longitudinally elongated;

wherein the radiopaque imaging marker includes a first portion positioned within the lumen between the lateral side port and a distal end of the electrical insulation to block fluid communication within the lumen distally beyond the first portion, and a second portion positioned within the lumen distal to the electrical insulation to form at least part of the functional tip.

2 . The medical device of claim 1 , wherein the atraumatic distal tip has a dome-shape or a hemispherical-shape.

3 . The medical device of claim 1 further comprising a second lateral side port disposed generally opposite the lateral side port.

4 . The medical device of claim 3 , wherein the second lateral side port is longitudinally elongated.

5 . The medical device of claim 3 , wherein an entirety of the radiopaque imaging marker is electrically exposed.

6 . The medical device of claim 3 , wherein a distal portion of the elongated member proximal and adjacent to the functional tip has a constant outer diameter.

7 . The medical device of claim 1 , wherein a distal end of the functional tip is closed and the lateral side port is disposed proximal to the closed distal end.

8 . The medical device of claim 1 , wherein a first diameter of the functional tip is equal to or less than a second diameter of the elongated member.

9 . The medical device of claim 1 , further comprising a layer of insulation at least partially overlapping the lateral side port.

10 . A medical device for creating a perforation in a tissue of a septum of a heart, the medical device comprising:

a metallic elongated member having a proximal end and a distal end and defining a lumen extending substantially between the proximal and distal ends, and a layer of electrical insulation along an outer surface of the metallic elongated member;

an atraumatic functional tip coupled to an inner surface of the lumen and extending distally from the metallic elongated member, the atraumatic functional tip defining a tip lumen and having a closed distal surface, the atraumatic functional tip including a radiopaque imaging marker comprising a platinum iridium alloy, and the atraumatic functional tip operable as an electrode for delivering energy to tissue; and

a plurality of lateral side ports located proximal of the closed distal surface, and the lateral side ports being in fluid communication with the lumen of the metallic elongated member, wherein at least one of the plurality of lateral side ports is longitudinally elongated;

wherein the radiopaque imaging marker includes a first portion positioned within the lumen between the plurality of lateral side ports and a distal end of the electrical insulation to block fluid communication within the lumen distally beyond the first portion, and a second portion positioned within the lumen distal to the electrical insulation to form at least part of the atraumatic functional tip.

11 . The medical device of claim 10 , wherein the atraumatic functional tip has a dome-shape or a hemispherical-shape.

12 . The medical device of claim 10 , where the plurality of lateral side ports include a first lateral side port and a second lateral side port disposed generally opposite to each other.

13 . The medical device of claim 12 , wherein at least one each of the plurality of lateral side ports is longitudinally elongated.

14 . The medical device of claim 12 , wherein an entirety of the radiopaque imaging marker is electrically exposed.

15 . The medical device of claim 10 , wherein a distal portion of the metallic elongated member located proximal and adjacent to the atraumatic functional tip has a constant outer diameter.

16 . The medical device of claim 15 , wherein a distal end of the atraumatic functional tip is closed and the plurality of lateral side ports is disposed proximal to the closed distal end.

17 . The medical device of claim 10 , wherein a first diameter of the atraumatic functional tip is equal to or less than a second diameter of the metallic elongated member.

18 . The medical device of claim 17 , further comprising a layer of insulation at least partially overlapping the plurality of lateral side ports.

19 . The medical device of claim 12 , wherein the atraumatic functional tip is coupled to the metallic elongated member by welding or bonding.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2023
From: DAVIES, GARETH; URBANSKI, JOHN PAUL
To: BAYLIS MEDICAL, INC.
Reel/Frame 064363/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2023
From: BAYLIS MEDICAL COMPANY, INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 064368/0821 →
Continuity (4)
Continuation 17130691 · Dec 22, 2020
Continuation 14404518
Provisional Application 61653967 · May 31, 2012
Related Publication 20230277276A1 · Sep 7, 2023
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