USPTO Patent Application for Chemical Pump Housing

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published September 25th, 2024

Detected March 26th, 2026

Summary

The USPTO has published a patent application for a chemical pump housing designed for negative pressure systems. The application details a housing with an inner chamber and a reactor configured to consume selected gases found in air, intended for use in negative pressure therapy.

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What changed

This document is a USPTO patent application (US20260083900A1) for a chemical pump housing intended for use in negative pressure systems. The application describes an inner chamber with a reactor designed to consume specific gases from the air and a sealed cover with an adhesive for application. The filing date was September 25, 2024.

As this is a patent application, it does not impose direct regulatory obligations or compliance deadlines on regulated entities. However, it may be of interest to medical device manufacturers and pharmaceutical companies involved in the development of negative pressure therapy systems or related chemical processing equipment.

Source document (simplified)

← USPTO Patent Applications

CHEMICAL PUMP HOUSING FOR NEGATIVE PRESSURE SYSTEM

Application US20260083900A1 Kind: A1 Mar 26, 2026

Inventors

Thomas E. LASH

Abstract

A chemical pump assembly and method useful for negative pressure therapy includes a chemical pump housing having an inner chamber and a reactor located within the inner chamber being configured to react with a selected gas found in air so as to consume the selected gas when exposed to air in the inner chamber. An opening is provided in the chemical pump housing that is in fluid communication with the inner chamber. A cover is disposed over at least a portion of the chemical pump housing for sealing the opening to prevent ingress of air through the opening into the inner chamber after activation of the reactor. The cover includes a cover body having an underside surface facing the chemical pump housing. The underside surface has an adhesive thereon for affixing the underside surface to the chemical pump housing a removable liner disposed over the adhesive on the underside surface, the removable liner including a pull tab extending laterally away from the chemical pump housing.