Patent GB-191421489-A (GB)
Title: Improved Means for Administering Gases and the like by Inhalation.
Inventor: O'DONNELL PATRICK SHAUGHNESSY
IPC: C01B32/55
Filed: 1914-10-24
Granted: 1915-05-06
Abstract: 21,489. O'Donnell, P. S., Heck, H. E. C. van, and Wheatley, A. D. Oct. 24. [Cognate Application, 24,541/14.] Inhalers; gas injectors and douches; radiations, treating diseases with.-Apparatus for administering gases by inhalation or otherwise, and of the kind comprising a small sealed capsule of gas under pressure, means for piercing the capsule, regulating- means, and a device for applying the gas to the patient, is provided with two regulatiog-valves the casings of which are united by means of a separable coupling, so that the capsule may readily be connected to various application devices. Fig. 1 shows an inhaler in which a sealed capsule 11 is carried in a holder 12, which forms a handle for the apparatus and is fitted with a piercer 20 and a regulating- valve 22. The valve 22 is connected to a second valve 23 on the body of the inhaler by means of the spigot-and-socket coupling 25. Gas passes from the valve 23 to an elastic bag 29 and thence to the face-piece 34 through a valve 36 and a passage 33, which may contain absorbent material 44 held in a short tube between removable wiregauze disks 45,46 and fed with a liquid medicament from a container 51. The inhalation control valve comprises a cylindrical plug 40 working in an outer casing 36 in which are cut apertures giving access respectively to the gas-bag 29, the face-piece 34, an exhaling-valve 38, and directly to the atmosphere. The inner plug 40 is correspondingly provided with apertures and with an inhaling flap valve 42, so that pure air, pure gas, or any desired mixture may be administered. The ends of the valve body 36 and of the internal plug 40 may be closed by transparent mica disks. For internal or external local treatment, the capsule holder 12 and valve 22 are detached from the inhaler proper and connected by means of a coupling 25<a>, Fig. 2, to a valve 60 giving access to an injection nozzle 59 or to a trumpet mouth, the edge of which may be fitted with a pneumatic cushion. The nozzle 59 may be connected to the apparatus by a detachable coupling 61, within which may be placed cotton-wool saturated with a liquid medicament from a container 62. Fig. 3 shows a modified form of capsule holder and piercer, in which a double-ended capsule 11 placed in position through an opening in the side of the holder rests in a plunger 69 normally held retracted by a spring 70. The capsule is forced against the piercer 20 by a cam 66, the operating-handle 65 of which may be held against the carrier 12 by means of a bolt 68. In modifications, two or more capsules and holders may be employed, so that a mixture of gases may be applied, and a fine nozzle used in conjunction with a capsule of carbon dioxide may be employed for the formation of carbon dioxide "snow" or " points." The administration of oxygen, ozonized air, and gas charged with a radio-active substance is referred to. The Provisional Specification 21,489/14 states also that the inhalation mask may be provided with a rotary fan or baffles and with a non-return exhalation valve. The Provisional Specification 24,541/14 describes a modification of the apparatus, in which a short capsu'e extends in the direction of the axis of the regulating-valves instead of in a direction at rightangles as shown.