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Publication numberUS2914064 A
Publication typeGrant
Publication dateNov 24, 1959
Filing dateMar 14, 1957
Priority dateMar 14, 1957
Publication numberUS 2914064 A, US 2914064A, US-A-2914064, US2914064 A, US2914064A
InventorsWerner Sandelowsky
Original AssigneeWerner Sandelowsky
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Respirators
US 2914064 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United t s P entO RESPIRATORS Werner Sandelowslry, Farrniugdale, N.Y. Application March 14, 1957, Serial N6. 646,078 3 Claims Cl. 128-29 The general object of the invention is to provide a valving mechanism capable of use in conjunction with available air supply or air pumping devices, for controlling the application of positive and negative pressure to a mask, and thereby produce controlled inhalation and exhalation.

With this and still other objects which will appear in mind, a mechanism embodying the invention in a preferred form will now first be fully described with reference to the accompanying drawing, and the features forming the invention will then be pointed out in the appended claims.

In the drawing:

Fig. 1 is a schematic side elevation of a mechanism embodying the invention in a preferred form;

Fig. 2 is a section on the line 2-2 of Fig.1;

Fig. 3 is a section on the line 33 of Figs. 2 and 4; and

Fig. 4 is a section on the line 44 of Fig. 3-.

The valve unit, which is best shown in Figs. 2-4, comprises a cylinder 10, supported on a base 11, and containing the valve body or rotor 12. Face plates 13, 14 are secured to the cylinder by means of bolts or tie rods 15 and support the rotor shaft 16 by means of anti-friction bearings 17. The cylinder and face plates are provided with six posts and hose or tubing connection fittings, one pair of ports 20, '21 connecting to the patients mask, another pair 22, 23 connecting to atmosphere and a third pair 24, 25 connecting to the pump unit, all as indicated in Fig. 1. The rotor 12 has ports and passages for suitably connecting the six casing ports, as follows. First of all, the rotor 12 has a passage or opening against face plate 14, so as to communicate with port 24 or 25, according to rotor position, and also opening against the near side of the cylinder 10 so as to communicate with port 20, or not, depending on rotor position. Communicating with opening 30 is a bore 31 leading to an arcuate channel or groove 32 against face plate 13, so as to communicate with port 21, or not, according to rotor position.

The passages and openings just described occupy about one half the rotor (the upper half in the position of the figures). The lower half of the rotor comprises an opening 40 against face plate 14 for communicating with the port or fitting 25, and the opening 40 communicates, in turn, through a bore 41 with a peripheral groove 42 which establishes communication with either the port 23 or the port 22, according to the position of the rotor. The upper and lower halves of the rotor are sealed off from each other against the face plate 14 by a partition or wall 43.

2,914,064 Patented Nov. 24, 1959 In operation, it will be understood that the pump unit contains desired negative and positive pressure in a manner well understood in itself and forming in itself no part of the present invention. 1 The mask, indicated schematically in Fig. 1, may be of any usual type such as now used for basal metabolism tests and other purposes and is connected through rotor hoses or tubing 44, 45 to the fittings 20 and 21, as shown. Suitable filters or medicament atomizers may be inserted in 'the lines 44 and 45, according to the treatment to be given and in accordance with present practice; In the position of the figure, connection is established from the mask through tubing 45 and fitting 20 to the rotor space 30 and hence through fitting 24 and tubing 46 to the pump unit, thus producing exhalation, under a vacuum or negative pressure determined by the adjustment of the pump unit in the usual way. The air pumped through the pump unit is conducted through tubing 46 to fitting 25 and hence through rotor spaces 40, 41 and 42 to the port or fitting 23 where it is discharged to atmosphere. Rotation through about a quarter turn from the position shown will reverse this operation, so that rotor space 40 is now in communication with fitting 24 and connects this fitting through bore 40 and peripheral groove 42 with port or fitting 22, so that the pump unit suction is now connected to atmosphere. At the same time rotor space 30 will have been brought into operative position with respect to fitting 25 connected to the pump high pressure or discharge side so that air from the pump will be delivered through bore 31 and to the arcuate channel 32 and hence to fitting 21 and-tube 44 leading to the mask. Under these conditions,-icontrolled inhalation will be produced. The air may be obtained directly from the atmosphere of the room or by connecting fitting 22 to any suitable source and may be modified or supplemented in any desired manner.

The time ratio as between inhalation and exhalation may readily be controlled by varying the peripheral spaces 30 and 41 and will ordinarily be arranged so that the ratio of inspiration or inhalation to expiration or exhalation will be about 1 to 1.3. Other ratios may, however, be selected if desired.

It will be observed that the design of the valving unit is such as to permit thorough cleaning and even sterilization of the rotor if desired, by unfastening the tie elements 15, separating the face plates and removing the rotor.

What is claimed is:

1. In a therapeutic respirator apparatus having an air pump and a mask for supplying and exhausting air to and from the patient, a valving mechanism comprising a ported casing comprising a cylindrical body and removable face plates having supply and exhaust connections to atmosphere, to the pump and to the mask, and a unitary rotor having passages for alternately connecting the pump discharge to the mask and the pump suction to atmosphere and the pump discharge to atmosphere and the pump suction to the mask.

2. In a therapeutic respirator apparatus having an air pump and a mask for supplying and exhausting air to and from the patient, a valving mechanism comprising a ported casing having supply and exhaust connections to atmosphere, to the pump and to the mask, and a rotor having passages for alternately connecting the pump discharge to the mask and the pump suction to atmosphere and the pump discharge to atmosphere and the pump suction to the mask, the said pasages being so proportioned as to give a ratio of about 1 to 1.3 between time of inhalation and expiration.

3. In a therapeutic respirator apparatus having an air pump and a mask for supplying and'exhausting air a unitary cylindrical rotorbodyhaving on one face thereof a diaphragm separating the two sides thereof, the rotor having an opening on one side of the said diaphragm communicating with a face of the. cylindrical profile of the rotor and with the periphery of the said profile, and a bore leading from the said opening to the opposite face of the rotor, the rotor further having an opening in the first said face on the opposite side of the said diaphragm closed off from the periphery of the rotor and a bore connecting the second said open-- ing to the rotor periphery adjacent the opposite face of the rotor and to the opposite face thereof, and a casing comprising a cylindrical body and removable face plates cooperating with the said rotor, the said cylindrical body having opposed air intake and discharge ports for cooperating with the second said bore opening into the periphery of the rotor, a port for connection to a mask in the second said face plate in position for cooperating with the second said bore, a second port for connection to the mask positioned in the cylindrical casing for cooperation with the first mentioned rotor openings, and a pair of diametrically opposite ports in the first said face plate positioned for cooperating with the said openings on the two sides of the said diaphragm.

References Cited in the file of this patent U ITED STATES PATENTS

Patent Citations
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US1136517 *Nov 5, 1912Apr 20, 1915Draegerwerk AgArtificial-breathing apparatus.
US1169996 *Feb 13, 1909Feb 1, 1916Roscoe S PrindleApparatus for producing artificial respiration.
US2269904 *Nov 21, 1939Jan 13, 1942Clarence N EricksonResuscitator-aspirator-insufflator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3515135 *May 22, 1968Jun 2, 1970Flower Henry CPortable resuscitator unit
US4239039 *Feb 28, 1979Dec 16, 1980Thompson Harris ADual control valve for positive pressure artificial respiration apparatus
US4624251 *Sep 13, 1984Nov 25, 1986Riker Laboratories, Inc.Apparatus for administering a nebulized substance
US4635627 *Sep 13, 1984Jan 13, 1987Riker Laboratories, Inc.Apparatus and method
US5427090 *Oct 25, 1993Jun 27, 1995Hipskind; Donald W.Portable breathing apparatus for an enclosed space
US6182658 *Oct 30, 1996Feb 6, 2001Zamir HayekFluid control valves
US6860265 *Sep 8, 2003Mar 1, 2005J.H. Emerson CompanyInsufflation-exsufflation system for removal of broncho-pulmonary secretions with automatic triggering of inhalation phase
US6929007Sep 8, 2003Aug 16, 2005J.H. Emerson CompanyInsufflation-exsufflation system with percussive assist for removal of broncho-pulmonary secretions
US7096866 *Aug 5, 2002Aug 29, 2006Alyn Woldenberg Family HospitalInexsufflator
US8651107Oct 19, 2007Feb 18, 2014The Metrohealth SystemManual lung ventilation device
US8844530Nov 17, 2009Sep 30, 2014Hill-Rom Services Pte. Ltd.Combination lung ventilation and mucus clearance apparatus and method
US9345851 *Mar 15, 2013May 24, 2016Seoil Pacific CorpDirection switching valve unit and cough assisting device using the same
US20030051729 *Aug 5, 2002Mar 20, 2003Eliezer Be'eriInexsufflator
US20050039749 *Sep 8, 2003Feb 24, 2005Emerson George P.Insufflation-exsufflation system for removal of broncho-pulmonary secretions with automatic triggering of inhalation phase
US20050051174 *Sep 8, 2003Mar 10, 2005Emerson George P.Insufflation-exsufflation system with percussive assist for removal of broncho-pulmonary secretions
US20070017522 *Jul 12, 2006Jan 25, 2007Eliezer Be-EriInexsufflator
US20070017523 *Jul 12, 2006Jan 25, 2007Eliezer Be-EriInexsufflator
US20070186928 *Sep 26, 2006Aug 16, 2007Be Eri EliezerCombined ventilator inexsufflator
US20070199566 *Feb 2, 2007Aug 30, 2007Be Eri EliezerRespiratory apparatus
US20100122699 *Nov 17, 2009May 20, 2010The Metrohealth SystemCombination lung ventilation and mucus clearance apparatus and method
US20130255689 *Mar 15, 2013Oct 3, 2013Seoil Pacific Corp.Direction switching valve unit and cough assisting device using the same
US20140116441 *Jun 18, 2012May 1, 2014Koninklijke Philips N.V.Method and apparatus for assisting airway clearance
EP0075542A1 *Sep 9, 1982Mar 30, 1983SOXIL S.p.A. GRUPPO PIERRELApparatus for artificial pulmonary ventilation during anaesthesia and resuscitation
Classifications
U.S. Classification128/205.19
International ClassificationA61M16/20
Cooperative ClassificationA61M16/20
European ClassificationA61M16/20