IP Library › Granted Patent US 12,343,042
Granted Patent B2
US 12,343,042 · App. 17/375,382 · Granted Jul 1, 2025

Pericardial puncture device and method

Inventors: Brock Miller (Toronto, CA); Matthew Gravett (Milton, CA); Kai-Lon Fok (Mississauga, CA)
Assignee: Boston Scientific Medical Device Limited
A61B17/3496A61B17/3423A61B2017/3425
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Quick Facts
Patent No.
US 12,343,042
App. No.
17/375,382
Granted
Jul 1, 2025
Kind
B2
Abstract

A pericardial puncture device includes an introducer, a needle, and an actuator. The introducer has a lumen and extends between an introducer proximal portion defining an introducer proximal end and an introducer distal portion defining an introducer distal end. The needle is received in the lumen and extends between a needle proximal portion and a needle distal portion having a sharp distal tip. The needle is movable from a retracted configuration to an advanced configuration. In the retracted configuration, the sharp distal tip is within the lumen and shy of the introducer distal end. In the advanced configuration, the sharp distal tip outside of the lumen and proud of the introducer distal end. The actuator includes a handle that is rotatable in a first direction with respect to the introducer to drive movement of the needle from the retracted configuration towards the advanced configuration.

Claims (27)

1. A pericardial puncture device comprising:

an introducer extending along a longitudinal axis between an introducer proximal portion defining an introducer proximal end and an introducer distal portion defining an introducer distal end, wherein the introducer has an introducer lumen extending between the introducer proximal end and the introducer distal end;

a needle received in the introducer lumen and extending between a needle proximal portion and a needle distal portion having a sharp distal tip, wherein the needle is movable from a retracted configuration to an advanced configuration, wherein in the retracted configuration the sharp distal tip is within the introducer lumen and shy of the introducer distal end, and wherein in the advanced configuration the sharp distal tip is outside of the introducer lumen and proud of the introducer distal end;

an actuator mounted to the introducer proximal portion and engaged with the needle proximal portion, wherein the actuator comprises a handle that is rotatable in a first direction with respect to the introducer to drive movement of the needle from the retracted configuration towards the advanced configuration, and wherein the handle is further rotatable in a second direction with respect to the introducer to drive movement of the needle from the advanced configuration towards the retracted configuration, wherein the actuator comprises a lead screw mounted to the handle, wherein the lead screw is received in the introducer proximal portion and the handle extends proud of the introducer proximal portion, and wherein rotation of the handle in the first direction drives rotation of the lead screw in the first direction, wherein the needle proximal portion comprises a lead nut; and the lead screw is received in and engaged with the lead nut to drive movement of the needle from the retracted configuration to the advanced configuration by rotation of the handle.

2. The pericardial puncture device of claim 1 , wherein the handle is rotatable about the longitudinal axis of the introducer.

3. The pericardial puncture device of claim 1 , wherein the actuator is longitudinally fixed with respect to the introducer.

4. The pericardial puncture device of claim 1 , wherein at least a section of the introducer distal portion is radiopaque.

5. The pericardial puncture device of claim 1 , wherein the introducer distal end is blunt.

6. The pericardial puncture device of claim 1 , wherein:

the introducer proximal portion comprises an internal circumferential groove;

the handle comprises an outer circumferential tongue; and

the outer circumferential tongue is received in the internal circumferential groove to longitudinally fix the actuator with respect to the introducer.

7. The pericardial puncture device of claim 1 , wherein the introducer comprises a metallic hypotube embedded in a polymeric shaft.

8. The pericardial puncture device of claim 7 , wherein the metallic hypotube is a stainless steel hypotube and the polymeric shaft is a high-density polyethylene shaft.

9. The pericardial puncture device of claim 1 , wherein the introducer has a length of at least 5 inches.

10. The pericardial puncture device of claim 1 , wherein the needle is of a one-piece construction.

11. The pericardial puncture device of claim 10 , wherein the needle is fabricated from stainless steel.

12. A pericardial puncture device comprising:

an introducer extending along a longitudinal axis between an introducer proximal portion defining an introducer proximal end and an introducer distal portion defining an introducer distal end, wherein the introducer has an introducer lumen extending between the introducer proximal end and the introducer distal end;

an actuator mounted to the introducer, wherein the actuator comprises a lead screw that is received in the introducer proximal portion and a handle that extends proud of the introducer proximal portion, wherein the actuator is rotatable about the longitudinal axis with respect to the introducer and is longitudinally fixed with respect to the introducer;

a needle extending along the longitudinal axis between a needle proximal portion having a lead nut and a needle distal portion having a sharp distal tip, wherein the lead screw is received in and engaged with the lead nut, and wherein rotation of the actuator about the longitudinal axis in a first direction drives longitudinal advancement of the needle to position the sharp distal tip proud of the introducer distal end, and wherein rotation of the actuator about the longitudinal axis in a second direction opposite the first direction drives longitudinal retraction of the needle to position the sharp distal tip shy of the introducer distal end.

13. A puncture device comprising:

an introducer extending along a longitudinal axis between an introducer proximal portion defining an introducer proximal end and an introducer distal portion defining an introducer distal end, wherein the introducer has an introducer lumen extending between the introducer proximal end and the introducer distal end and the introducer proximal portion comprises an internal circumferential groove;

a needle received in the introducer lumen and extending between a needle proximal portion and a needle distal portion having a sharp distal tip, wherein the needle is movable from a retracted configuration to an advanced configuration, wherein in the retracted configuration the sharp distal tip is within the introducer lumen and shy of the introducer distal end, and wherein in the advanced configuration the sharp distal tip is outside of the introducer lumen and proud of the introducer distal end;

an actuator mounted to the introducer proximal portion and engaged with the needle proximal portion, wherein the actuator comprises a handle that is rotatable in a first direction with respect to the introducer to drive movement of the needle from the retracted configuration towards the advanced configuration, wherein the handle comprises an outer circumferential tongue and the outer circumferential tongue is received in the internal circumferential groove to longitudinally fix the actuator with respect to the introducer, wherein the actuator comprises a lead screw mounted to the handle, wherein the lead screw is received in the introducer proximal portion and the handle extends proud of the introducer proximal portion, and wherein rotation of the handle in the first direction drives rotation of the lead screw in the first direction, wherein the needle proximal portion comprises a lead nut; and the lead screw is received in and engaged with the lead nut to drive movement of the needle from the retracted configuration to the advanced configuration by rotation of the handle.

14. The puncture device of claim 13 , wherein the introducer distal portion includes a radiopaque band.

15. The puncture device of claim 13 , wherein the introducer comprises a hypotube embedded in a polymeric shaft.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2022
From: BAYLIS MEDICAL COMPANY INC.
To: BOSTON SCIENTIFIC MEDICAL DEVICE LIMITED
Reel/Frame 060938/0731 →
CONFIRMATORY ASSIGNMENT Recorded Nov 4, 2021
From: MILLER, BROCK; FOK, KAI-LON; GRAVETT, MATTHEW
To: BAYLIS MEDICAL COMPANY INC.
Reel/Frame 058809/0180 →
Continuity (2)
Provisional Application 63052692 · Jul 16, 2020
Related Publication 20220015804A1 · Jan 20, 2022
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