Back to results
US 12,678,554 B2Granted
Drip chamber assembly
AssigneeCareFusion 303, Inc.
InventorsHuntington Woodman, Kelly Kloster Hon, Ryan Callahan, Leyla Yamin
Life of this patent
Estimating the term…
Abstract
Drip chamber assemblies are described herein. A drip chamber assembly includes a drip chamber and a filter. The drip chamber includes a chamber body defining a chamber volume. The filter is disposed within the chamber volume. The filter includes a folded filter media, which defines an inlet portion of the chamber volume and an outlet portion of the chamber volume. The folded filter media permits inlet flow from the inlet portion of the chamber volume to the outlet portion of the chamber volume. The folded filter media captures particulate from the inlet flow.
Claims17
A drip chamber assembly, comprising:
- a drip chamber comprising a chamber body defining a chamber volume, wherein the chamber body is deformable;
- a filter disposed within the chamber volume and free floating relative to the drip chamber, the filter comprising:
- a folded filter media, the folded filter media defining an inlet portion of the chamber volume and an outlet portion of the chamber volume, wherein the outlet portion of the chamber volume is formed between the folded filter media and the chamber body, the folded filter media permits inlet flow from the inlet portion of the chamber volume to move radially outward to the outlet portion of the chamber volume and captures particulate from the inlet flow;
- and
- a frame to support the folded filter media, the frame comprising:
- an upper portion of the frame comprising a first continuous sealing exterior circumferential surface that seals against the chamber body to direct the inlet flow to a radially inner portion of the folded filter media;
- and
- a lower portion of the frame, wherein the lower portion of the frame is configured to resiliently deform with the chamber body, and a flow path from the outlet portion of the chamber volume to an outlet is formed between the chamber body and the lower portion of the frame.
5 more elements
A method, comprising:
- introducing an inlet flow into a chamber volume defined by a chamber body;
- providing a filter within the chamber volume, wherein the filter is free floating relative to the chamber body, the filter comprising a folded filter media;
- supporting the folded filter media within the chamber volume via a frame;
- sealing a first continuous sealing exterior circumferential surface of an upper portion of the frame against the chamber body to direct the inlet flow from an inlet portion of the chamber volume to a radially inner portion of the folded filter media, radially outward through the folded filter media, and into an outlet portion of the chamber volume defined between the folded filter media and the chamber body;
- capturing particulate from the inlet flow in the folded filter media as the inlet flow moves radially outward from the inlet portion to the outlet portion of the chamber volume;
- resiliently deforming the chamber body;
- and
- resiliently deforming a lower portion of the frame as the chamber body is deformed.
5 more elements
An IV set comprising:
- a first portion of tubing;
- a second portion of tubing;
- and
- a drip chamber assembly comprising:
- a drip chamber comprising a chamber body defining a chamber volume, an inlet end in fluid communication with the chamber volume, and an outlet in fluid communication with the chamber volume, wherein the inlet end is coupled to the first portion of tubing and the outlet is coupled to the second portion of tubing and the chamber body is deformable;
- a filter disposed within the chamber volume and free floating relative to the drip chamber, the filter comprising:
- a folded filter media, the folded filter media defining an inlet portion of the chamber volume in fluid communication with the inlet end and an outlet portion of the chamber volume in fluid communication with the outlet, wherein the outlet portion of the chamber volume is formed between the folded filter media and the chamber body, the folded filter media permits inlet flow from the inlet portion of the chamber volume to move radially outward to the outlet portion of the chamber volume and captures particulate from the inlet flow;
- and
- a frame to support the folded filter media, the frame comprising:
- an upper portion of the frame comprising a first continuous sealing exterior circumferential surface of that seals against the chamber body to direct the inlet flow to a radially inner portion of the folded filter media;
- and
- a lower portion of the frame, wherein the lower portion of the frame is configured to resiliently deform with the chamber body.
9 more elements
Dependencies are inferred from the claim text.