The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
May. 30, 2018
Zhongshan Ophthalmic Center of Sun Yat-sen University, Guangzhou, CN;
Yizhi Liu, Guangzhou, CN;
Yan Luo, Guangzhou, CN;
Xiaofeng Lin, Guangzhou, CN;
Lin Lu, Guangzhou, CN;
Zhongshan Ophthalmic Center of Sun Yat-Sen University, Guangzhou, CN;
Abstract
Collection devices with valves for liquid specimens are disclosed. In an embodiment, the disclosure provides a collection device including a reservoir having a sealed cavity, the sealed cavity being under a negative pressure; a delivery tube in communication with the sealed cavity of the reservoir and having a delivery inlet, a delivery outlet, and a valve disposed between the delivery inlet and the delivery outlet, the valve being configured to control the communication and blocking between the delivery inlet and the delivery outlet, and an angle being formed by an extension line of the delivery inlet an extension line of the delivery outlet; and a piercing component for piercing a tissue is connected with the delivery inlet of the delivery tube.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile