IP Library Granted Patent US 12,551,655
Granted Patent B2
US 12,551,655 · App. 17/899,279 · Granted Feb 17, 2026

Detection and pressure relief for percutaneous closure of a vessel

Inventors: Brad Steele (Sunnyvale, CA); Lucas Buchanan (Sunnyvale, CA); William Whealon (Sunnyvale, CA)
Assignee: BOSTON SCIENTIFIC SCIMED, INC.
A61M25/0075A61M25/0012A61M25/0054A61M2025/0046A61M2025/0078
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Quick Facts
Patent No.
US 12,551,655
App. No.
17/899,279
Granted
Feb 17, 2026
Kind
B2
Abstract

A pressure relief device for use in a percutaneous procedure, the device comprising a tube having a distal opening into an internal lumen and a proximal opening from the internal lumen, a length of the tube sized to position the distal opening near a closed arteriotomy in a vessel and the proximal opening remains external to a patient's skin. Related devices, kits, and methods are provided.

Claims (35)

1 . A pressure relief device for use in a percutaneous procedure, the device comprising a tube having a distal opening into an internal lumen and a proximal opening from the internal lumen, a length of the tube sized to position the distal opening near a closed arteriotomy in a vessel and the proximal opening remains external to a patient's skin;

a visual indicator coupled to a proximal end region of the tube; and

wherein the visual indicator is a thin disc of material configured to change color upon contact with blood from the internal lumen.

2 . The device of claim 1 , wherein the visual indicator is fixedly coupled to the proximal end region of the tube or removably coupled to the proximal end region of the tube.

3 . The device of claim 1 , wherein the material is selected from the group consisting of high-density polyethylene, polyamide, polyethersulfone, and polyvinylidene fluoride.

4 . The device of claim 1 , wherein the visual indicator has a larger outer diameter than an outer diameter of the proximal end region of the tube.

5 . The device of claim 1 , wherein the tube is formed of a polymer, metal, or a combination of polymer and metal.

6 . The device of claim 1 , wherein at least a portion of the tube is coated on an external surface with a lubricious polymer coating.

7 . The device of claim 6 , wherein the polymer coating is silicone or polytetrafluoroethylene.

8 . The device of claim 1 , wherein the tube has a length that is between 3 cm and 10 cm.

9 . The device of claim 1 , wherein the tube is circular or oval in cross-section.

10 . The device of claim 1 , wherein the distal opening is the only opening of a distal end region of the tube.

11 . The device of claim 1 , wherein the tube comprises one or more side wall openings through a distal end region of the tube.

12 . The device of claim 1 , wherein the proximal opening is the only opening of a proximal end region of the tube.

13 . The device of claim 1 , wherein the tube comprises one or more side wall openings through a proximal end region of the tube.

14 . The device of claim 1 , wherein the tube has an inner diameter of about 0.004″ and 0.020″.

15 . The device of claim 1 , wherein the vessel is a carotid artery including a common carotid artery, an internal carotid artery, and an external carotid artery.

16 . The device of claim 1 , wherein, in use, the proximal opening is positioned external to the patient's skin forming a pressure gradient with the region near the closed arteriotomy.

17 . A kit comprising the device of claim 1 , and further comprising one or more visual indicators configured to mate with a proximal end region of the tube.

18 . The kit of claim 17 , wherein a length of the tube is customizable by trimming.

19 . The kit of claim 17 , further comprising an inserter having an outer diameter sized to receive the lumen of the tube and a length sufficient to insert through the lumen so that a distal end region projects beyond the distal opening of the tube.

20 . The kit of claim 17 , further comprising one or more of a procedural introducer sheath, a sheath dilator, an introducer guide wire, a closure device delivery sheath, a vessel closure device applier, and a closure device.

21 . A pressure relief device for use in a percutaneous procedure, the device comprising a tube having a distal opening into an internal lumen and a proximal opening from the internal lumen, a length of the tube sized to position the distal opening near a closed arteriotomy in a vessel and the proximal opening remains external to a patient's skin;

wherein the lumen of the tube comprises a viscous material configured to impede the ingress of foreign material or air into the tissue track.

22 . The device of claim 21 , wherein the viscous material is petrolatum, polyethylene glycol, or glycerin containing one or more antibiotics.

23 . The device of claim 21 , wherein the viscous material fills the lumen from the proximal opening to the distal opening.

24 . The device of claim 21 , wherein the viscous material is a discrete plug of material contained within the lumen.

25 . The device of claim 21 , wherein blood is able to pass through the viscous material to provide pressure relief.

26 . A method of using a pressure relief device following a percutaneous procedure, the method comprising:

closing an arteriotomy in a vessel percutaneously;

inserting a pressure relief device through a tissue track leading toward the arteriotomy, the pressure relief device comprising a tube having a distal opening into an internal lumen and a proximal opening from the internal lumen and a visual indicator coupled to a proximal end region of the tube that is configured to change color upon contact with blood from the internal lumen;

wherein the visual indicator is a thin disc of material configured to change color upon contact with blood from the internal lumen; and

positioning the distal opening near the arteriotomy and the proximal opening external to a patient's skin.

27 . The method of claim 26 , wherein the visual indicator is fixedly coupled or removably coupled.

28 . The method of claim 26 , wherein the vessel is a carotid artery including a common carotid artery, an internal carotid artery, and an external carotid artery.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2026
From: STEELE, BRAD; BUCHANAN, LUCAS; WHEALON, WILLIAM
To: BOSTON SCIENTIFIC SCIMED, INC.
Reel/Frame 073505/0171 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2025
From: SILK ROAD MEDICAL, INC.
To: BOSTON SCIENTIFIC SCIMED, INC.
Reel/Frame 070671/0426 →
SECURITY INTEREST Recorded Jul 11, 2023
From: SILK ROAD MEDICAL, INC.
To: OXFORD FINANCE LLC
Reel/Frame 064252/0197 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2022
From: STEELE, BRAD; BUCHANAN, LUCAS; WHEALON, WILLIAM
To: SILK ROAD MEDICAL, INC.
Reel/Frame 060950/0875 →
Continuity (2)
Provisional Application 63239163 · Aug 31, 2021
Related Publication 20230067426A1 · Mar 2, 2023
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