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A ventilator for providing artificial respiration to a patient has a plurality of pneumatic components mounted on a manifold. The manifold is a one piece aluminum casting having a base with ducts formed therein to permit fluid communication between the pneumatic components. The ducts are exposed on

A ventilator for providing artificial respiration to a patient has a plurality of pneumatic components mounted on a manifold. The manifold is a one piece aluminum casting having a base with ducts formed therein to permit fluid communication between the pneumatic components. The ducts are exposed on the underside of the base and are removably sealed from the atmosphere by a gasket and sealing plate which are secured to the underside of the base so as to cover the exposed portion of the ducts. Several components are formed in the manifold as part of the casting, including an accumulator and pulsation dampener, both of which are gas storage chambers. A plurality of fins are also formed as part of the manifold, and act as a heat sink for a printed circuit board which is secured to the manifold. Removable pneumatic components are secured to mounting blocks which extend upwardly from the base and have threaded bores therein for the receipt of threaded fasteners. Fluid communication between the ducts and the pneumatic components is established through stubs which extend upwardly from the base and which are sealingly engaged by the pneumatic components. A bore through the stubs forms an access port to the ducts. The access ports as aligned with inlets and outlets on the pneumatic components when the pneumatic components are secured to the mounting blocks.

대표청구항 ▼

A ventilator which provides artificial respiration to a patient from a source of pressurized gas, said ventilator comprising: a flow control valve means for controlling the flow of inspiratory gas to said patient from said source of pressurized gas; means for establishing gas flow into and out of sa

A ventilator which provides artificial respiration to a patient from a source of pressurized gas, said ventilator comprising: a flow control valve means for controlling the flow of inspiratory gas to said patient from said source of pressurized gas; means for establishing gas flow into and out of said patient\s airway, said flow establishing means being in fluid communication with said flow control valve means; an exhalation valve means for controlling the flow of gas from said patient to the atmosphere, said exhalation valve means in fluid communication with said flow establishing means; a manifold having a top side and an underside, said flow control valve means and said exhalation valve means mounted on said top side of said manifold; mounting surfaces formed on said top side of said manifold, said flow control and exhalation valve means being supported by said mounting surfaces when mounted on said manifold; a plurality of integral ducts formed in said manifold, said ducts permitting fluid communication between said source of pressurized gas and said patient through said manifold; a plurality of access ports extending through said top side of said manifold and into said ducts, said access ports positioned on said manifold so as to permit fluid communication between said flow control and exhalation valve means and said ducts when said flow control and exhalation valve means are mounted on said manifold; an inlet fitting mounted on said manifold, said inlet fitting in fluid communication with said source of pressurized gas, a first one of said ducts establishing fluid communication between said inlet fitting and said flow control valve means, wherein substantially the entire length of said duct is exposed to the atmosphere along the underside of said manifold; a patient fitting mounted on said manifold, said patient fitting establishing fluid communication between said flow establishing means and a second duct extending between said flow control valve means and said patient fitting, wherein substantially the entire length of said second duct is exposed to the atmosphere along the underside of said manifold; a gasket which sealingly engages the underside of said manifold so as to seal said ducts from the atmosphere; a sealing plate which forces said gasket into sealing engagement with said manifold, said gasket being sandwiched between said sealing plate and said manifold, said gasket and said sealing plate combining to form a wall enclosing said ducts; and wherein the exposed structure of said ducts permits the formation of said manifold, complete with said integral ducts, through a molding or casting process.