Vented dispensing device and method

A fluid dispensing device for delivery of a therapeutic fluid to a user's body, the fluid dispensing device comprising:

• a disposable part housing comprising of at least one reservoir to hold the therapeutic fluid;
• at least one energy source comprising at least one Zinc-air battery which provides energy upon exposure to air;
• a reusable part housing including at least a portion of a driving mechanism and electronic components having a processor, wherein the disposable part housing and the reusable part housing are substantially sealed when operatively coupled to each other, and wherein at least one of the disposable part housing and the reusable part housing allows ingress of liquids when not operatively coupled to the other part;
• at least one vent port formed on one or more walls of at least one of the disposable part housing and the reusable part housing;
• a semi-permeable membrane comprising a water-repelling fabric which substantially covers and/or is provided at the at least one vent port, the membrane being impervious to at least one liquid but pervious to at least one gas,
• wherein the at least one vent port is configured for communicating air into at least one of the disposable part housing and the reusable part housing to at least one of:
• maintain pressure equilibrium between the air pressure therein and the ambient air pressure there out, and
• provide communication with the ambient air to the at least one Zinc-air battery to enable operation of the at least one Zinc-air battery,
• and wherein as a result of the pressure equilibrium, controlled delivery of the therapeutic fluid from the at least one reservoir to the body of the user is enabled;
• and
• an audible notification module disposed in the reusable part housing, wherein the at least one vent port is further configured to direct sound and/or vibration generated by the audible notification module as a notification regarding a condition of the fluid dispensing device.