Configurable fluid channel sealing devices and methods

Patent metadata

Field	Value
Publication number	US-12163594-B2
Application number	US-202318481277-A
Country	US
Kind code	B2
Filing date	Oct 5, 2023
Priority date	Sep 26, 2018
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

Fluid channel sealing devices, frangible seals, fluid circuits, associated controllers and methods of using the same are provided for controlling fluid distribution using a reconfigurable blocking element having first and second portions to establish a first configuration free of any open channels such that fluid is prevented from flowing through the channel and a second configuration where the first and second portions are separated to establish an open channel and allow fluid to pass.

First claim

What is claimed is:

1. A method of sealing a channel with a fluid channel sealing device, comprising:
sealingly engaging at least a portion of a blocking element with internal walls of a fluid channel for conveyance of a fluid, wherein the blocking element is reconfigurable from a first configuration where it is free of any open channels such that fluid is prevented from flowing through the channel to a second configuration in which an open channel is established allowing fluid to pass and wherein the second configuration is established by applying a deforming force to the blocking element to open a hole in the blocking element, a patency of the hole being maintained while the second configuration is maintained, wherein
the blocking element has first and second parts connected in a middle thereof,
when the deforming force is applied to the blocking element between the first and second parts, the first and second parts separate to open the hole in the blocking element,
when the first and second parts separate, the first and second parts remain at least partially connected,
a diameter of the first part is smaller than a diameter of the second part,
the second part remains sealingly engaged with the internal walls after the first and second parts separate, and
the blocking element is a solid of rotation with an axis aligned with an axis of the fluid channel.

2. The method of claim 1 , wherein the blocking element is reconfigurable by applying the deforming force crosswise to the axis of the blocking element, between the first and second parts.

3. The method of claim 2 , wherein the patency of the hole is maintained by continuously applying the deforming force to the blocking element.

4. The method of claim 1 , wherein the blocking element is a frangible solid and the second configuration is established by fracturing the frangible solid between the first and second parts.

5. The method of claim 4 , wherein the hole is maintained by preventing the blocking element in the second configuration from returning to the first configuration.

Assignees

• Nxstage Medical Inc

Inventors

• Yantz Gregory
• Wyeth Mark T
• Johnson James Ian
• Schnell William J

Classifications

• A61M2209/04

  Tools for specific apparatus · CPC title

• A61J1/2027 Primary

  having frangible parts · CPC title

• A61J1/10

  Bag-type containers · CPC title

• A61M39/221

  Frangible or pierceable closures within tubing (A61M39/14 takes precedence; frangible closures for containers A61J1/14) · CPC title

• A61M1/28

  Peritoneal dialysis {; Other peritoneal treatment, e.g. oxygenation} · CPC title