Blood flow reversal valves and related systems and methods
AssigneeFresenius Medical Care Holdings, Inc.
InventorsMel Jensen, Lynn Jensen, Thomas Folden, John Oliver, Olli Tuominen
Life of this patent
Estimating the term…
Abstract
A blood flow reversal valve useful in hemodialysis having rotational detent features enabling audible and tactile feedback to a clinician and alignment features such as visible indicators associated with the blood lines on either side of the valve to confirm normal or reverse flow.
Claims38
A blood flow reversal valve for extracorporeal blood lines, the blood flow reversal valve comprising:
- a first valve portion defining first and second ports extending therethrough;
- and
- a second valve portion defining first and second ports extending therethrough, the valve portions being rotatably secured to one another, the valve portions being configured to be rotated into a first position in which the first ports are aligned with one another and the second ports are aligned with one another,
- wherein the valve portions are constructed to produce an audible click upon being rotated into the first position.
A blood flow reversal valve for extracorporeal blood lines, the blood flow reversal valve comprising:
- a first valve portion defining first and second ports extending therethrough;
- and
- a second valve portion defining first and second ports extending therethrough, the valve portions being rotatably secured to one another, the valve portions being configured to be rotated into a first position in which the first ports are aligned with one another and the second ports are aligned with one another,
- wherein the valve portions are constructed to provide tactile feedback to a clinician when the clinician manually rotates the valve portions into the first position.
A blood flow reversal valve for extracorporeal blood lines, the blood flow reversal valve comprising:
- a first valve portion defining first and second ports extending therethrough;
- and
- a second valve portion defining first and second ports extending therethrough, the first and second valve portions being rotatable relative to one another between a first engaged position and a second engaged position,
- wherein each of the first and second valve portions comprises at least one alignment feature, the alignment features being arranged to align with one another when the valve portions are in one of the engaged positions.
Dependencies are inferred from the claim text.