Medication infusion device
US11278666B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/1585
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medication infusion device includes a medication container containing liquid medication; an infusion needle; and a reciprocating pump having a pump chamber. The liquid medication is withdrawn from the medication container into the pump chamber during suction operation of the reciprocating pump, and the liquid medication is dispensed out of the pump chamber through the infusion needle during dispensing operation of the reciprocating pump. There are also mechanisms preventing liquid from flowing through the infusion needle during suction operation of the reciprocating pump and preventing liquid from flowing back into the medication container during dispensing operation of the reciprocating pump. The medication infusion device may further include a microcontroller to control medication infusion volume and rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.