Patent · US Active

Dual chamber syringe with retractable needle

US11426533B2 · kind B2 · utility

0Cited by

80References

5Claims

0Family size

Assignee

Becton, Dickinson and Company · US

Inventors

Ivan Zivkovic · Mahwah, US
Jorgen Hager · Helsingborg, SE
Ulf Handberg · Upplands Väsby, SE
Gert Hanner · Gnosjö, SE
Thomas Holma · Svängsta, SE
Ulf Wahlberg · Helsingborg, SE

Key dates

Filing date	Jan 31, 2020
Grant date	Aug 30, 2022
Priority date	—
Expiry date	Oct 8, 2040

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/586
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Embodiments of a retractable syringe assembly are provided that include a dual syringe barrel configuration. One or more embodiments include reuse prevention features and features that prevent premature activation of the retraction mechanism. Methods for aspirating and expelling liquid from medical devices are also provided.

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