Patent · US Active

Spray nozzle chip and a medicament delivery device comprising the same

US11254488B2 · kind B2 · utility

0Cited by

11References

20Claims

0Family size

Assignee

SHL Medical AG · CH

Inventors

Niclas Roxhead · Bromma, SE
Torben Last · Osterode, DE
Göran Stemme · Stockholm, SE

Key dates

Filing date	Dec 5, 2018
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Jan 3, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B15/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A spray nozzle chip is presented having: a first layer provided with a first layer orifice, a mechanically flexible nozzle layer provided with a nozzle orifice, the spray nozzle chip having a valve functionality obtained by movement of the nozzle layer relative to the first layer due to pressure changes, wherein the nozzle orifice is closed when the nozzle layer is in a default non-pressurised state and wherein the nozzle orifice is opened and set in fluid communication with the first layer orifice when the nozzle layer is deformed due to pressure during a spraying operation, and wherein the spray nozzle chip further has a sealing layer configured to rupture when the nozzle layer is deformed due to applied pressure during a spraying operation.

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