Patent · US Active

Spray nozzle chip and a medicament delivery device comprising the same

US12343467B2 · kind B2 · utility

0Cited by

0References

9Claims

0Family size

Assignee

SHL Medical AG · CH

Inventors

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

Key dates

Filing date	Dec 27, 2019
Grant date	Jul 1, 2025
Priority date	—
Expiry date	Dec 4, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B11/1091
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A spray nozzle chip comprising: a first layer provided with a first layer orifice, and a mechanically flexible nozzle layer provided with a nozzle orifice, wherein the first layer has a valve seat arranged aligned with the nozzle orifice, wherein the spray nozzle chip has a valve functionality obtained by movement of the nozzle layer relative to the valve seat due to pressure changes, and wherein the nozzle layer is arranged at a distance from the valve seat when the nozzle layer is in a default non-pressurised state, whereby a gap with a gap length (L) is formed between the nozzle layer and the valve seat, wherein the gap length (L) is smaller than a dimension of a specific bacterial type, to thereby seal against bacterial ingrowth through the nozzle orifice of the specific bacterial type.

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