Title:
SPRAY HEAD AND DEVICE FOR INTRANASAL SPRAYING OF LIQUID MEDICINE
Document Type and Number:
WIPO Patent Application WO/2024/021769
Kind Code:
A1
Abstract:
It provides a spray head and a device for intranasal spraying of liquid medicine, comprising: a nozzle (3), which has a flow channel (31) running through the axial direction, and the distal and proximal ends of the flow channel (31) are the flow channel outlet (311) and the flow channel inlet (312), respectively; a water core (2) circumferentially arranged with a water trough (221) configured inside the flow channel (31); and the outlet tube (1), curved in shape, comprising a parallel section (11) and an inclined section (12) integrally connected. The end of the inclined section (12) extends from the flow channel inlet (312) to the inside of the flow channel (31) and is circumferentially sealed to the inner wall of the flow channel (31), so that when the fluid flows in from the parallel section (11), it flows out from the inclined section (12) into the inside of the flow channel (31) and after passing through the water trough (221), it ejects from flow channel outlet (311).
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Inventors:
LIU JINGYI (CN)
CHEN ZHUTUO (CN)
CHEN ZHUTUO (CN)
Application Number:
PCT/CN2023/093884
Publication Date:
February 01, 2024
Filing Date:
May 12, 2023
Export Citation:
Assignee:
NASAL PHYTO SZ PHARMACEUTICAL TECH CO LTD (CN)
International Classes:
A61M31/00; A61M11/02
Foreign References:
| CN115068795A | 2022-09-20 | |||
| US20050017088A1 | 2005-01-27 | |||
| CN208511699U | 2019-02-19 | |||
| CN207654263U | 2018-07-27 | |||
| CN201061658Y | 2008-05-21 | |||
| CN103830097A | 2014-06-04 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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