Insertion mechanism for a drug delivery pump
US10806854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2016 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An insertion mechanism for a drug pump includes an insertion mechanism housing; a manifold guide; an insertion biasing members initially held in an energized state; a retraction biasing member and a hub connected to a proximal end of a needle, wherein the retraction biasing member is held initially in an energized state between the hub and the manifold guide; and a manifold having a septum and a cannula, wherein the annular space between the septum and the cannula defines a manifold header. The needle and cannula are inserted into the body of a user by the insertion biasing member(s), after which only the needle is retracted. Retraction of the needle may open a fluid pathway from the manifold header to the body through the cannula. A drug delivery pump includes an activation mechanism, a drive mechanism, a fluid pathway connection, and the insertion mechanism. Assembly and operation methods are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.