Patent · US Active

Delivery devices for therapeutic substances

US11666710B2 · kind B2 · utility

1Cited by
0References
62Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 2021
Grant dateJun 6, 2023
Priority date
Expiry dateApr 13, 2041

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61M5/31586
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

In some embodiments, a delivery device includes a device actuator and a cannula portion through which a therapeutic substance is ejected. The cannula portion includes an outer shaft, a needle that is configured to move through the outer shaft, and a plunger that is configured to move through the needle, forming a positive displacement arrangement.

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