Manually operable dechoking and resuscitating device

In a device for removing an obstruction from the throat of a human being or generating artificial respiration in said being,

• a. a face mask of a flexible material for application over the mouth and nose of said human being including a main body portion and side wall structures having marginal peripheral portions that are pressed against the nose-chin area in airtight relation therewith to define a cavity over said mouth and nose,
• b. an opening in said main body portion,
• c. a rigid cylinder having one end open and its other end closed by an end wall formed with a central opening in alignment with the opening in the main body portion of the mask,
• d. means for securing said end wall to said main body portion,
• e. a one way check valve in said end wall offset from said central opening which when open permits passage of air from the interior of said cylinder to the exterior thereof and which when closed inhibits passage of air through the end wall to the interior of said cylinder,
• f. a moveable detent means on said end wall for holding said check valve in closed position,
• g. a piston reciprocal in said cylinder,
• h. said piston having an orifice together with a safety valve controlling the passage of air through said orifice which opens when a safe limit of suction is reached on an outstroke of said piston,
• i. a rod upstanding from said piston centrally thereof and projecting beyond the open end of the cylinder when the piston is in its innermost position,
• j. a finger engageable handle on the outer end of said rod,
• k. spring means biasing said piston towards said end wall whereby instrokes of the piston are powered by said spring means,
• l. a frame including a cross-members extending transversely of said open end and mounted on the exterior of said cylinder whereby said member is gripped by the hand of an operator whose fingers are in engagement with said finger engageable member and tightening of the grip of said hand causes an outstroke of said piston against the influence of said spring means,
• m. a bleed hole in said cylinder adjacent to said end wall;
• and
• n. a tube secured to said main body portion and communicating with the opening therein, said tube having an extent just long enough to provide for its insertion between the teeth and over the tongue of said human being to function as a gag and tongue depressor.