US 12,575,814 B2Granted

Fluid sample collection system

AssigneeC. R. Bard, Inc.

InventorsJonathan Robichaud, Reagan H. Belflower, Cecille A. Canary

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Abstract

Disclosed herein is a fluid sample collection system including a diversion valve, a spring and a collection canister. The diversion valve includes a diversion valve housing, the diversion valve is configured to receive a volume of fluid from a first fluid line and direct the volume of fluid to either a collection canister below the diversion valve using a collection channel or to a second fluid line using a passage channel. The collection channel is located below the passage channel. The spring is coupled to the diversion valve, and configured to transition the diversion valve between a collection state and a passage state. The collection canister includes a collection canister opening. The collection canister is configured to receive the volume of fluid by gravity flow and is coupled to the diversion valve by a fluid channel.

Claims18

Dependent claims

A fluid sample collection system, comprising:

a diversion valve defining a cavity and having a distal opening disposed in a distal side, and a proximal opening disposed in a proximal side, each of the distal opening and the proximal opening communicating with the cavity;
a diversion valve housing slidably engaged with the cavity along a transverse axis between a collection state and a passage state, the diversion valve defining a passage channel extending longitudinally between a proximal opening and a distal opening, and a collection channel defining an angled central axis extending between the distal opening and a bottom opening, the diversion valve housing biased towards the collection state;
and
a collection canister coupled to a bottom side of the diversion valve housing and in fluid communication with the bottom opening of the collection channel, the collection channel of the diversion valve housing in the collection state directing a fluid flow to the collection canister until a volume of fluid accumulated within the collection canister increases a weight of the collection canister to move the diversion valve housing along the transverse axis and transition the diversion valve housing to the passage state.

1 more element

A method of collecting a fluid sample from a patient, comprising:

providing a diversion valve defining a cavity and including a diversion valve housing slidably engaged with the cavity;
transitioning the diversion valve housing to a collection state by a spring applying a force to the diversion valve housing, to align a distal opening of a collection channel with a distal opening of the diversion valve;
directing a fluid flow from a catheter that is in fluid communication with the distal opening of the diversion valve through the collection channel and into a collection canister;
collecting a predetermined volume of fluid within the collection canister to increase a weight of the collection canister, the weight increase applying a greater force to the diversion valve housing than the force of the spring, wherein the weight increase transitions the diversion valve housing to a passage state to align a distal opening of a passage channel with the distal opening of the diversion valve and to align a proximal opening of the passage channel with the proximal opening of the diversion valve;
and
directing the fluid flow from the catheter to the proximal opening of the diversion valve that is in fluid communication with a collection bag.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/703,819Filed 24 Mar 2022 · us provisional application
Priority: 26 Mar 2021
Published: US 2022/0304663 A129 Sep 2022
Granted: 17 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

A61B 10/007
Devices for taking samples of body liquids: for taking urine samples
A61M 25/0017
Catheters; Hollow probes: specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
A61B
Medical diagnosis and surgery
A61M
Devices for delivering substances into the body