US629482A - Inhaler. - Google Patents

Inhaler. Download PDF

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Publication number
US629482A
US629482A US70255099A US1899702550A US629482A US 629482 A US629482 A US 629482A US 70255099 A US70255099 A US 70255099A US 1899702550 A US1899702550 A US 1899702550A US 629482 A US629482 A US 629482A
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Prior art keywords
ether
valve
mask
inhaler
sieves
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US70255099A
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Wilhelm Wagner
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/18—Vaporising devices for anaesthetic preparations

Definitions

  • This invention relates to an ether-mask in which a funnel-shaped cover projecting inward is provided with a valve opening inward for admitting ether and air for breathing, introduced into said f unnel-shaped cover, and with very fine sieves, made of non-ab-. sorbent material, stretched across the interior of the receptacle, between said valve and an outlet-valve arranged laterallyon the sur face of the mask, for taking up and distributing the ether.
  • This mask consists of a metal casing A, closed at the top by a funnel-shaped cover B, the other side, which is applied to the face of the person to whom the anesthetic is to be administered, being suitably shaped and edged with rubber tube to render it air-tight when applied to the face.
  • the funnel-shaped cover B is providedat its lowest point with an opening a, closed by a spring-controlled non-return valve 1) in such manner as to allow air to enter the interior of the mask, but to prevent it from escaping.
  • a non-return-valve outlet cl At the side of the casing is arranged an opening 0, closed by a non-return-valve outlet cl, arranged outside and working in the opposite direction-1 e., enabling air to escape, but preventing it from entering.
  • the anesthetic is, as already stated, supplied byintroducingit into the funnel-shaped cover B, whence it enters the interior of the valve 1) and remainsthere as long as the valve is closed.
  • the valve opens only as long as breathing proceeds in a regular manner. As soon, however, as the breathing ceases the valve remains closed, and ether cannot pene-- trate into the interior of the mask.
  • the valve constitutes a device for automatically regulating the anesthetic-supply, which is of the highest importance, as itsadmission when breathing has ceased is not only undesirable, but dangerous to the life of the patient.
  • valves substantially as shown and delo scribed.
  • VVILHELM WAGN ER VVILHELM WAGN ER.

Description

Patented July 25, I899. W. WAGNER.
INHALER {Application filed. Jan. 18, 1899.)
(No Model.)
Ewen/tor. Mia fif 14% m Attorney.
1'04: ncnms IETERS 00v. 'HOTO-LIYNQ. WASHINGTON, n. c.
UNITED STATES PATENT OFFICE.
lV I LI-IELM VAGNER, OF AIX-LA-CHAPELLE, GERMANY.
INHALER.
SPECIFICATION forming part of Letters Patent No. 629,482, dated July 25, 1899.
Application filed January 18,1899. Serial No. 702,560. (No model.)
To all whom it may concern:
Be it known that I, WILHELM WAGNER, M. D., a citizen of Germany, residing at 58 Boxgraben, AiX-la- Ohapelle, Kingdom of Prussia, Germany, haveinvented certain new and useful Improvements in Ether-Masks; and I do hereby declare the following to be a full, clear,- and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to an ether-mask in which a funnel-shaped cover projecting inward is provided with a valve opening inward for admitting ether and air for breathing, introduced into said f unnel-shaped cover, and with very fine sieves, made of non-ab-. sorbent material, stretched across the interior of the receptacle, between said valve and an outlet-valve arranged laterallyon the sur face of the mask, for taking up and distributing the ether.
The accompanying drawing shows a mask according to this invention in vertical section.
This mask consists of a metal casing A, closed at the top bya funnel-shaped cover B, the other side, which is applied to the face of the person to whom the anesthetic is to be administered, being suitably shaped and edged with rubber tube to render it air-tight when applied to the face. The funnel-shaped cover B is providedat its lowest point with an opening a, closed by a spring-controlled non-return valve 1) in such manner as to allow air to enter the interior of the mask, but to prevent it from escaping. At the side of the casing is arranged an opening 0, closed by a non-return-valve outlet cl, arranged outside and working in the opposite direction-1 e., enabling air to escape, but preventing it from entering. Between the two valves there are stretched in the interior of the casing in a transverse direction one or more very fine metallic sieves D. When the mask is being used, the anesthetic falls onto and becomes distributed over said sieves. It not only moistens the fine wires of the sieves, but also thus considerably accelerates the vaporiz-,
ing of the ether. This vaporizing is all the quicker, since-the ether is placed not, as in ordinary masks, on absorbing materialsuch as gauze, flannel, sponge, wool, &c.but on a non-porous material. According to the laws of physics all substances having a great absorbing property give up the substances absorbed with difiiculty, whereas the vaporization of ether on the sieves according to this invention is incomparably quicker.
Experiments with the new masks have shown that'a completely insensible state has been reached by means of ether in one and one-half to four minutes, whereas in other masks it requires a much longer time. Not only the ether alone quickly becomes vaporized, but its vaporization is accelerated by the admission of an unlimited quantity of atmospheric air, so that the patient does not simply breathe vapors of ether, but air saturated with ether.
The anesthetic is, as already stated, supplied byintroducingit into the funnel-shaped cover B, whence it enters the interior of the valve 1) and remainsthere as long as the valve is closed. The valve opens only as long as breathing proceeds in a regular manner. As soon, however, as the breathing ceases the valve remains closed, and ether cannot pene-- trate into the interior of the mask. By means of this arrangement the valve constitutes a device for automatically regulating the anesthetic-supply, which is of the highest importance, as itsadmission when breathing has ceased is not only undesirable, but dangerous to the life of the patient.
Having now fully described my invention,
the valves, substantially as shown and delo scribed.
In testimony whereof I aflix my signature in presence of two witnesses.
VVILHELM WAGN ER.
\Vitnesses:
O. E. BRUNDAGE, JOSEPHINE BISCHOF.
US70255099A 1899-01-18 1899-01-18 Inhaler. Expired - Lifetime US629482A (en)

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