Patent · US Active

Intravenous catheter set

US8845585B2 · kind B2 · utility

2Cited by

1References

9Claims

0Family size

Inventors

Chih-Ming Wang · Zhubei City, TW
Wei Wang · Beijing, CN

Key dates

Filing date	Jan 24, 2013
Grant date	Sep 30, 2014
Priority date	—
Expiry date	Feb 25, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M25/0631
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention includes a barrel, a needle assembly, a catheter, a stopper and a vacuum generator. The needle assembly is disposed in the barrel and has a needle, a needle hub and a needle piston. The needle piston is fastened onto the needle hub. The catheter is axially connected onto the needle hub and passed through by the needle. The stopper is operably disposed at the first end of the barrel and normally stops the needle hub from moving. The vacuum generator has a plunger and a vacuum piston mounted on an end thereof. The vacuum piston is slidably received in the barrel and normally abuts against the needle piston, and the plunger protrudes from the second end of the barrel. The needle assembly will be pulled and retracted in the barrel when the plunger is pulled outward and the stopper releases the needle hub.

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