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:
Sep. 08, 2020
Filed:
Aug. 30, 2016
Yun Yu Cheung, Sheung Shui, HK;
Other;
Abstract
The present invention relates to a negative pressure device, including: a hollow needle assembly including: a hollow needle adaptor, the hollow needle adaptor has an axial through hole, a proximal connector, a distal connector and a flange between the proximal connector and the distal connector, and at least one hollow needle, each of the at least one hollow needle has a tip and an axial through hole and is in fluid communication with the proximal connector of the hollow needle adaptor; a host machine, the host machine includes a control module and a vacuum pump; and an exhaust pipe, the exhaust pipe is in fluid communication with the host machine and the distal connector of the hollow needle adaptor.