| 摘要 |
The present invention provides a patient ventilating apparatus (1) for ventilation of the lungs. The invention comprises a case (2) located on a flexible support (3), the two forming a chamber for containment of respirable gas. The case moves on the support during the respiratory cycle to vary the volume of the chamber. Preferably the case has a means (19) defining a chamber located within it and said means defining a chamber is in fluid communication with the chamber part of the flexible support. The present invention also provides patient ventilating apparatus for ventilation of the lungs comprising a means defining a chamber located at least partially within a case. The region between the case and the means defining a chamber comprises a plenum and said plenum is in fluid communication with a conduit through which gas may be admitted or expelled from said plenum varying the pressure within. The chamber has an outlet such that respirable gas may be expelled in order to supply respirable gas to a patient. The means defining a chamber and the case are arranged such that the volume of said chamber may be adjusted either by: (1) varying pressure to the plenum, or (2) a user applying physical force to the means defining a chamber. |
