US 12,551,200 B2Granted

Small volume liquid sampler

AssigneeNovosanis NV

InventorsKoen Catharina Lodewijk Beyers, Alejandra Ríos Cortés, Nette Meers, Christof Irma Jozeph Baks, Quinten Van Avondt, Timothi Julio Steven Van Mulder, Vanessa Vicky Jill Vankerckhoven

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Abstract

A device for sampling an initial volume of a liquid flow is disclosed which comprises an inlet conduit, an outlet conduit, and valve casing. The valve casing has a passageway formed therethrough. A sample outlet extends through the valve casing and into the passageway. A valve structure is arranged for axial movement in the valve casing. A gate of the valve structure obstructs the passageway and prevents an initial volume of the liquid flow from being transferred to the outlet conduit when the valve structure is moved to a sampling position. A stem of the valve structure obstructs the sample outlet without obstructing the passageway when the valve structure is moved to a diverting position. At least one elongated groove is formed in a surface of the gate and extends into the stem such that the initial volume is directed through the sample outlet and towards a receptacle when the valve structure is moved to the sampling position. A lifting member moves the valve structure from the sampling position to the diverting position.

Claims20

Dependent claims

A device for sampling an initial volume of a liquid flow, comprising:

an inlet conduit for receiving the liquid flow,
an outlet conduit for draining a subsequent volume of the liquid flow,
a valve casing arranged between the inlet conduit and the outlet conduit and having a passageway formed therethrough to fluidly connect the inlet conduit to the outlet conduit, a sample outlet for draining the initial volume of the liquid flow extending through the valve casing and into said passageway,
a valve structure arranged for axial movement in the valve casing traverse to a direction of liquid flow through the passageway, the valve structure comprising a gate for obstructing the passageway and preventing the initial volume of the liquid flow from being transferred to the outlet conduit when the valve structure is in a sampling position, and the valve structure further comprising a stem connected to the gate and adapted for obstructing the sample outlet without obstructing the passageway when the valve structure is in a diverting position, at least one elongated groove being formed in a surface of the gate facing the inlet conduit and the at least one elongated groove extending from the gate to the stem, said at least one elongated groove being adapted for receiving the initial volume of the liquid flow and for guiding said initial volume along the gate, the stem, and through the sample outlet towards a receptacle, connectable to the valve casing, when the valve structure is in the sampling position,
a lifting member connected to the stem for moving the valve structure from the sampling position to the diverting position while the initial volume of the liquid flow is being sampled through the sample outlet.

2 more elements

A kit of parts, comprising:

a bonnet having at least three openings,
an inlet conduit connectable to a first opening of the bonnet,
an outlet conduit connectable to a second opening of the bonnet,
a valve casing removably insertable into the bonnet via a third opening therein, a base of the valve casing being connectable to the third opening, the valve casing having an inlet and an outlet formed therethrough defining a liquid passageway though the valve casing, a sample outlet extending through the base of the valve casing and into the passageway, the valve casing having an opening provided at a top side thereof, opposite to the base,
a valve structure removably insertable into the valve casing, the valve structure being arranged for axial movement in the valve casing, traverse to a direction of liquid flow through the passageway, the valve structure comprising a gate for obstructing the passageway when the valve structure is in a sampling position, and the valve structure further comprising a stem connected to the gate and adapted for obstructing the sample outlet without obstructing the passageway when the valve structure is in a diverting position, at least one elongated groove being formed in a surface of the gate and the at least one elongated groove extending from the gate into the stem,
a lifting member connectable to the stem.

3 more elements

A kit of parts, comprising:

a valve casing having an inlet and an outlet formed therethrough defining a liquid passageway though the valve casing, a sample outlet extending through a base of the valve casing and into the passageway, the valve casing having an opening provided at a top side thereof, opposite to the base,
an inlet conduit connectable to the inlet of the valve casing,
an outlet conduit connectable to the outlet of the valve casing,
a valve structure removably insertable into the valve casing, the valve structure being arranged for axial movement in the valve casing, traverse to a direction of liquid flow through the passageway, the valve structure comprising a gate for obstructing the passageway when the valve structure is in a sampling position, and the valve structure further comprising a stem connected to the gate and adapted for obstructing the sample outlet without obstructing the passageway when the valve structure is in a diverting position, at least one elongated groove being formed in a surface of the gate and the at least one elongated groove extending from the gate into the stem, said at least one elongated groove being adapted for, when the kit of parts is assembled and in use, receiving an initial volume of a liquid flow and guiding said initial volume along the gate, the stem, and through the sample outlet towards a receptacle, connectable to the valve casing, when the valve structure is in the sampling position,
a lifting member connectable to the stem.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/767,252Filed 7 Oct 2020 · us provisional application
Priority: 7 Oct 2019
Published: US 2022/0370047 A124 Nov 2022
Granted: 17 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61B 10/007
Devices for taking samples of body liquids: for taking urine samples
A61F 5/4405
Details or parts: valves or valve arrangements specially adapted therefor ; Fluid inlets or outlets
G01N 1/2042
By deviating part of a fluid stream, e.g. by drawing-off or tapping: using a piston actuated by the pressure of the liquid to be sampled
A61B
Medical diagnosis and surgery