Title:
PRESSURE INDICATOR
Document Type and Number:
WIPO Patent Application WO/2018/107567
Kind Code:
A1
Abstract:
A pressure indicator, the structure thereof consisting of a housing (A) formed by a connected upper cover (13) and lower cover (12), an intermediate assembly (B) inside the housing (A) formed by a sealing cover (4), a flexible pressure-sensitive diaphragm (6), a support ring (5) and an indicator rod (8), and a feedback assembly (C) formed by a return tube (1) and a connector (7) formed from two hollow cone-shaped cavities; the top cover (13) has provided thereon a ventilation chamber (3), an air inlet (14) and a check valve (2), the support ring (5) is suspended from an inner circumferential wall of the sealing cover (4), an outer wall of the lower cover (12) is provided with a pressure indicating area (11), a lower end of the lower cover (12) is provided with a round groove (12-2), an interface (9) is provided at the center of the round groove (12-2), a sealing sleeve (10) is connected on the round groove (12-2), the connector (7) has provided thereon a ventilation chamber (7-3), one end of the return tube (1) is connected to the ventilation chamber (3) located at the upper cover (13), and another end thereof is connected to the ventilation chamber (7-3) on the connector (7). The present pressure indicator has a simple overall structural model, is convenient to use, and has low production costs; the present pressure indicator may be used for pressure detection and feedback adjustment in airbags for endotracheal intubation, tracheostomy intubation and laryngeal masks.
Inventors:
ZOU DEWEI (CN)
Application Number:
PCT/CN2017/072531
Publication Date:
June 21, 2018
Filing Date:
January 25, 2017
Export Citation:
Assignee:
TIANJIN MEDIS MEDICAL DEVICE CO LTD (CN)
International Classes:
G01L19/00; A61M16/04
Foreign References:
| CN204479237U | 2015-07-15 | |||
| CN203881490U | 2014-10-15 | |||
| CN105363107A | 2016-03-02 | |||
| CN105181234A | 2015-12-23 | |||
| CN201179260Y | 2009-01-14 | |||
| CN203587275U | 2014-05-07 | |||
| CN204521890U | 2015-08-05 | |||
| US20110220116A1 | 2011-09-15 | |||
| JP2008023035A | 2008-02-07 |
Attorney, Agent or Firm:
TIANJIN SANLI PATENT&TRADEMARK AGENCY CO., LTD. (CN)
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