Patent · US Active

Nasolacrimal plugs

US9561130B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

HANGZHOU LIUCHA PHARMACEUTICAL LTD. · CN

Inventors

Chaoyang Hong · Hangzhou City, CN
Chenglong Wu · Hangzhou City, CN
Xufeng Lin · Hangzhou City, CN

Key dates

Filing date	Jun 3, 2013
Grant date	Feb 7, 2017
Priority date	—
Expiry date	Feb 23, 2035

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61F9/00772
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A plug for use in a passage or conduit of a human body is provided. The plug includes a plug body with a first end and a second end. The plug body has a protrusion on an exterior wall. The plug also includes an attaching member at the first end to attach the plug to the passage or conduit. The plug further includes an axial retention tube within the plug body. The plug further includes a reservoir. The reservoir connects to the retention tube at a third end thereof. The reservoir and the retention tube are configured to regulate the flow of fluid in the passage or conduit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.