Manually operated respiration apparatus, and ballon unit and valve housing for a manually operated respiration apparatus

Manually operated respiration apparatus, and ballon unit and valve housing for a manually operated respiration apparatus

  • CN 1,871,045 B
  • Filed: 09/01/2004
  • Issued: 07/17/2013
  • Est. Priority Date: 09/01/2003
  • Status: Active Grant
First Claim
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1. manual operation breathing equipment;

  • comprise respirator;

    this respirator has the respiration channel that is connected with the patient that will practice artificial respiration;

    described respiration channel is connected to be used for supplying air through respiration channel to the patient through valve system with the inflow port that is connected to gas bag unit; and

    be connected to be used for that the breathe out air of respiration channel of patient is discharged to the external world with one or more outflow port;

    wherein said gas bag unit comprises the elasticity bellows that have entrance and exit;

    wherein in the entrance of bellows, comprise check-valves further;

    the outlet of bellows is connected with the inflow port of respirator;

    it is characterized in that described gas bag unit has over-pressure safety device to be used for when surpassing scheduled pressure value from described bellows air-out; and

    in the entrance of described bellows, comprise and be essentially columniform valve pocket;

    integrated described check-valves and described over-pressure safety device in described valve pocket;

    described valve pocket has the centre gangway that suction inlet from the end face that is located at described valve pocket extends to the inside of described bellows;

    in described centre gangway;

    comprise valve body;

    described valve body is pressed against on the base by the effect of spring;

    described valve body;

    spring and base form described over-pressure safety device together;

    between the normal operating period, described over-pressure safety device prevents that gas from flowing out through described entrance from described bellows.

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