Sealing Valve and Closed Structure Anesthetic Bottle

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted patent US12589216B2 to LINKR MEDICAL (SHANGHAI) CO., LTD. for a sealing valve and closed structure anesthetic bottle featuring a guiding tube with a convex ring seal and an axially-slidable pushing rod to connect or isolate the anesthesia vaporizer from the outer packaging bottle. The patent contains 20 claims and was filed April 13, 2021 under application 17781981.

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What changed

USPTO granted patent US12589216B2 to LINKR MEDICAL (SHANGHAI) CO., LTD. for a sealing valve mechanism used in anesthetic bottles. The invention comprises a guiding tube with a first end insertable into an outer packaging bottle, featuring a convex ring protruding against the bottle's inner wall for sealing, and a second end configured for connection to an anesthesia vaporizer. A pushing rod is slidably arranged within the guiding tube to selectively connect or block flow between the vaporizer and bottle. The patent was granted March 31, 2026, with 20 claims and CPC classifications covering A61M medical devices and A61J containers.

Medical device manufacturers and pharmaceutical companies developing anesthesia delivery systems should review this patent for freedom-to-operate analysis and potential licensing considerations. Healthcare providers using or procuring anesthesia equipment may wish to verify supply chain and sourcing implications. This patent grant does not impose compliance obligations but establishes exclusive intellectual property rights for LINKR MEDICAL.

Source document (simplified)

← USPTO Patent Grants

Sealing valve and closed structure anesthetic bottle

Grant US12589216B2 Kind: B2 Mar 31, 2026

Assignee

LINKR MEDICAL (SHANGHAI) CO., LTD.

Inventors

Xiangming Sun, Yushun Wang, Gang Shen

Abstract

The present application discloses a sealing valve (10), including a guiding tube (1), comprising a first end (11) configured to be inserted into an outer packaging bottle and a second end configured to be connected to an anesthesia vaporizer (12); the outer peripheral surface of the first end (11) is provided with a convex ring (111) protruding toward the inner wall of the outer packaging bottle and abutting against the inner wall of the outer packaging bottle; and a pushing rod (2) configured to be arranged in the guiding tube (1) and slidable along an axial direction of the guiding tube (1) to connect the anesthesia vaporizer with the outer packaging bottle or to block between the anesthesia vaporizer and the outer packaging bottle.