DE6604991U - DEVICE FOR INTERMITTING OXYGEN OR OTHER BREATHING GAS - Google Patents

Description

Jarnos Edward Pinan, Chappaque * N, Υ »/ USA

EjLnrlphtr n n; sun lntprrrufrtiorcndon donating oxygen odor " sun breathing ncciH

The invention is based on a donation facility of oxygen or other inhalable can. In particular, the invention relates to a tracbaro Device for intermittently dispensing such gas for breathing. Furthermore, this invention relates particularly to a device that is suitable to be worn on the body and solohos to donate gas for breathing intermittently.

There are several ways of supplying oxygen for breathing Systems * Facilities and techniques known. When the term oxygen is used it is self-evident that that oxygen or mixtures of oxygen with other gases, such as 2.B. Nitrogen, helium, etc. meant that are suitable for breathing. Ira general will Essentially pure oxygen is used in the nostrils of the user is mixed with air and diluted, as will be explained here. Portable oxygen devices for supplying oxygen or for supplementing the supply of oxygen for ventilation purposes are known. These earlier

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ß-yateroo and Technikon habon In general oino kontlnulorllohG Obsessed with oxygen supply. For example, have this © frUhoron Syoterr.o and techniques continuous oxygenation The boatmen hum on both the inhale and exhale used.

The supply of oxygen for respiratory purposes also when.

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zuGoführto oxygen \ 7Ührend dos Ausatmenc would escape into the Atmosphliro unless that he would shut off, out or absorbed by ceolenete Kittel (which however occupy much space would) _β Despite this situation, the known portable Sauerstoffspendeeinrichtunsen substantially continuous oxygen Zürn breathing . Since oxygen is normally gaseous and has a low vaporization point, strong and heavy filters would have to be used to store the oxygen. Oie3 has been a major contributor to the weight of the portable oxygen breathing apparatus and to the exertion and annoyance of those who wore it. It is also clear that such systems and techniques wasted oxygen, which has considerable economic value.

There are multitudes of situations in which a person. requires a supply of oxygen to breathe or a supply of oxygen to aid breathing. A pretty general situation concerns eraphysematic persons,

where the person has indicated to have a supply of oxygen to aid breathing over considerable periods of time. Colcho individuals are not otherwise sick, and it can be expected that they move forward and thereby become a need transportable equipment of the type described, which, in addition to reliability and steady work performance, reduced oxygen loss. The demand among patients in need of this type of therapy after a portable and reliable device, dio thus makes problems with continuously delivering oxygen Systems that wasted oxygen are particularly important

However, the invention is suitable except for eraphysealists also for anyone who needs oxygen therapy, such as B. Heart patients, polio or lung cancer patients, asthmatics and

Other.

The present invention is based on the object © in

j relatively light, simple portable system for intenr.ittie ·

Generating and need-based Spondon of oxygen to create.

Another object of the present invention is to provide a Technique sum supplying oxygen for dlo breathing in one Kind of creating dio bosondors useful for those with Qlnor Siuuerctoffböhandlung is.

Another object of the present invention is to to create a portable oxygen machine that was advised to do so is wrong. Body cotrasen to »/ earth and the, compared ir.it other known comparable portable devices that continuously donate oxygen for a given amount has a long history of oxygen in the apparatus.

Another object of the present invention is to provide a wearable apparatus for supplying gaseous oxygen for inhalation purposes so that the face of the person wearing the same is free and bare except for a nasal cannula or the like for supplying the donated oxygen at dom, the free mobility of the person wearing the system, including the use of his nose and mouth, is essentially not restricted.

A next © task of vorliesenden invention is to provide an ara wearable oxygen apparatus for supplying oxygen for Atraunsszweck © via the nose or mouth and only the person ivenn inhales, the mouth or nose leg: use not necessarily ce ^ s the apparatus to be sealed rr.uß _fl so that the can has been inhaled through the apparatus in addition to the oxygen delivered air through the nose or Kund.

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Another object of the present invention is to to create an oxygen apparatus of the type described, in which the intermittent supply of oxygen through the Breathing movement of the wearer himself causes v / lrd.

Another object of the present invention is to provide an oxygen apparatus of the type described, in which only mechanical parts are used and this increases the reliability ©.

According to the invention this is achieved by a device for supplying oxygen for breathing from a supply through a line to an outlet part to supply a person intermittently and in accordance with the inhalation, with a valve arranged in the line with a movable part which is between the positions "open" and "closed" movable 1st to the stock in an appropriate V / else with your Auatrlttsteil zn connect or from this su separate, with a Abfühloinrichtung which serves to sense the expansion and contraction of the circumference of the chest of the person , with a piston which is arranged inside an interior space of constant cross-section and essentially in gas-tight external contact with it, and whose © in © side forms a movable viand which joins part of the interior space around a variable chamber part of the same to form, with the piston on the sensor

»Lilt» 1 1 * ψ *

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I appeals to move in a first direction and

;, Voluraon of the changeable part of the carnation in a red sense to change if the sensing device detects an expansion

I poses and to move in a second direction nand that

I Volume of the changeable body part in a twofold sense

'· * To change when the sensing device is contracting

': establishes and where the gas pressure is in the variable

I Kanraorteil in each case inversely proportional to the VbIu-

I change the same change, and kit a battery action

r: direction that corresponds to the change in the gas pressure in the

I borrowed the jar part, x-ienn the volume in »first

! Sinn sndert, in order to cause that the movable valve-

1 part moved to the "Ofi'en" position.

To understand the invention, it is made with reference to FIG ■ the drawings described.

I Figure 1 shows a first embodiment of the invention,

But only to explain the general arrangement and arrangement according to any embodiment of the device of the invention when it is worn on the body;

j Figure 2 is a plan view of the first embodiment

of an actuation element, which is installed in the device according to the Invention is used;

Figure 5 is a front view of the elements shown in Figure 2 mentoa;

4 lot olno sectional view dos shown in Figure 2 Elomontoo ICncn dor Ebono 4-4 and bless the inner madness, v / onn dloco dio take up position, dio dom exhalation of the wearer cntcprlcht;

Fisur 5 iot oino Looks at that in Picur 4 ßosolßton ont " Gprlcht und dio innoren Toll © selst, if slo dio lässe take, which corresponds to the inhalation of the wearer;

Figure 6 1st only sectional light of the device shown in Figure 5 ltings dor Ebono 6-6 $

FIG. 7 is a sectional view of the Tolloa in FIG. 4 Facility shown along level 7-7 *

FIG. 8 is a sectional view of part of FIG device shown l & igs Ebone 8-8;

Figure 9 is a top plan view of a second embodiment an actuator used in the device according to the invention;

Figure 10 is a front view of the part shown in Figure 9;

FIG. 11 is a sectional view of the part shown in FIG along the plane 11-11 and shows the inner parts, when they assume the position, which entails the inhalation of the wearer speaks; and

• 4 · · β ** ** J ft Λ

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12 a perpendicular cut from that shown in FIG Facility along tlor Ebono 12-12.

Gorr.'iß the invention, 1st olne me chemical "Sauorstof fabsporrvorrlchtung vorGGcehon _p v o t) Ql of the Expanslonsbswecuns Dru3tkorb03 dos Tra ^ Andon the Ventllteilo öffnot and oxygen to dom wearer strümon IaQt ₆ vjiihrend the KontraktionabeviOGuns the chest dos sohlleßt carrying the valve members and the flow of oxygen to the wearer stops. The expansion movements correspond to inhalation and the contraction movements correspond to exhalation.

It is a feature of the invention that the open and Close the valve parts while they are in the just described Catfish are controlled, not by the Reselmläßigkelt of the inhalation and exhalation cycle, but rather 2x1 At any time when it is required, it is effected, So may. For example, a deep inhalation and a shallow exhalation. break, or any other combination in strength and rhythm .., of inhalation and exhalation can be practiced, and in feathers At the moment the valve parts react to the diaphragmatic movements of the wearer, regardless of which one State and which part of the opening and closing cycle the valve parts are then straight · The device is subject to the user, a departure from all previously known so-called atinunsshilfesystemen for "intermittent

In doncn dor Donutzor dom system through a geochlooccno connection swlachon its respiratory openings and dom apparatus untorv / orfon ist, whereby the intermittent oxygen stream by coin alternately from the and BIaccn in the device was switched on and off _e

The combination of these features results in a © facility * die very flexible is tailored to the breathing needs of any GlHQO Tracondon and lnsbonondero of a tracer of an emphysema, oinon fnoumokardinaisu'stand or another respiratory disorder causing a lack of oxygen. Farther is co the oxygen supply reaching liinsor (due to the soringoron Vorz3chv; enduns) and reduced weight and size, all the important advantages of this facility lend to everything that is state-of-the-art was created beforehand.

E3 is now made to the figures · namely ^{to-1 <r> v} closest to the general Figure 1 in connection Rait the Flgu- ·, reindeer 2-8, a first embodiment of the invention, '■. - show and where a container 20 is shown hanging from the oinon shoulder of a person who is wearing it with the aid of a shoulder strap 21. The container 20 contains an oxygen source, for example a small oxygen tank, with an associated device, such as a shut-off valve, none of which is shown, but which are properly disrupted inside the container 20 · A hose 22 a,

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wio z _e B _e Qln flexible plastic hose * leads from dome Bohlllter 20 to an Itot & tlcungsGloniont, which is generally designated with ί £ 3 lot and In dome Ventllolomento are, and hose 22b leads from the actuating element 23 to a nasal cannula 24 »dio on her Space in the face dec wearer is held with Hilfο olnoa adjustable strap 25 · The

ü.h · about in the height of the diaphragm * and vrf.rd there with the help of a belt 29 ßehalton _p that the body of those Gereons who deceive the device. It is believed * that the strap 29 tends to be tighter on the inhale and taut xionicer on the exhale. The increased tension of the belt 20, which corresponds to the inhalation, causes the valve parts of the actuating element 23 to let oxygen through from the hose 22a to the hose 22bQ, and the decrease in the tension of the belt 29, which corresponds to the exhalation that the valve parts of the actuating element 2p the sow ©:? substance flow from the smart ^; ■ · ■ · 22 a to block your hose 22 b «,

In Figure 4 mim can see the relationship of the parts to one another in the event that the valve parts are closed, which corresponds to the exhalation of the wearer. In Figure 5 the relationship of the same parts can be seen _{J (} in the event that the

tilteilo are opened, tvas corresponds to the inhalation of the wearer. Reference gcnoiunisn vrfLrd to both figures. The first exemplary embodiment dos Botcltisunsselenontes 23 contains a main part 23 a isit of a sandwich structure, which is a middle part. Part 23 b (Fis «, 6) has, which is covered with a front and a rear plate 23 c, 23 ß. The middle part 23 b is relatively thick with azn plates 23 c, 23 d and, as can be seen in the section in FIGS. 4 and 5, is provided with a multitude of internal passages and chambers, the edges of which lie completely between the one another Extend Kauptflachon of i4itteltoils 23 b. In this way, the plates 23 c, 23 d serve to supplement the ends of these passages and caramorn on the main surfaces of the middle part 23 b . The plates 23 c, 23 d are attached to the smock part 23 b with the help of Eofesticur. stollen 23 e, z.3. Machine screws, bofostict. The rear plate 23 d snaps with the part 23 d ⁹ beyond the lateral end of the middle part 23 b and is bent there so that it can be seen in particular in FIG.

Dor Ilaupttoll 23 a is specially nilt zv; oi inner DurohlLIsson 23 f, 23 s foreseen, dio to don Vontllsitstoil 23 h susanunontroffon and vorbur.don are. Dor Vontilsitutoil 11 p.m. is boi the. in don Ficuron ^ and 5 GO-oistcn AucrUhrunscboiopiol as vorconktor cylinder auosoblldot, doccon axis in the direction of dor LllnseaehS © döö Kittölfcöiiö 23 b iiect. Within aöä Sitätö-

* ι

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lG3 23 h, a valve valve 23 i is arranged and designed in such a way that that when it is closed it is a kissing fanatic song zuoaTimcnfits. Each of the passages 23 f * 23 G ends at an ercton end 23 j of the central part 23 b in with thread Spare openings 23 k or 23 in. Into the openings

23 k, 23 m screwed in are screwed connection points 26 a,

2öb, each of which is provided with a grooved outside for a secure connection to the inside of the ends of the tubes 22a or 22b. It is assumed that oxygen ^ öem connection 26 a is fed from the hose 22 a so that Inraer then> if there is a free connection between the passage 23 f and the passage 23 S, this oxygen through the passages 23 f _t 23 S * from the: connecting toilet 26 b and through the hose 22 b to the cannula

24 flows. -

HL2ier the end 23 η of the middle part 23 b "ie that end which is the end 23 j £ e £ onüborlie3t _a eich oino innore Kaarner 23 p, which has a smoky cross-section, as can be seen in Ficur 6" A recessed Eohrunc 23 q connects the inner channel 23 ρ to the passage 23 f and reads coaxially to ό, οη ßitzteil 23 h and the valve 23 i. The upper and lower parts of the half of the middle part 23 b adjacent to the end 23 η are cozo- CPXX ₉ towards the lower tone and / or above so that in the fore-flow with a flat plate . 23 g » 23 ao upper hat 23 r and a lower courage 23 s (Figure 6)

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vlrcU Zv / g1 holes provided with Gov.'lnde 23 t gohon from dor IiUt 23 rouG into the inner Kanmor 23 ρ and two with thread Spared holes 23 u look from the groove 2.5 s upwards in the Kamar 23 p.

Ια inside the Kanter 23 ρ is tightly fitted, Qbor displaceable, a rectangular sleeve 23 v, which has a closed end, which is located at the deo end of the inner Kankor = £ 3 ρ. It adjoins the countersunk hole 23 q, an adjustable air opening 23 χ is located in the closed end of the sleeve 23 y * and in Figure 8 you can see how this has a passage 23 y, which extends to the outside of the sleeve 23 v, a passage 23 z opening into the interior dex BUehs © 23 ν, and a threaded adjustable ur.d fitting needle valve 23 aa on a seat at the junction of the passages 23 y, 23 ζ to allow the connection between them to close completely or to open in various degrees, “For the skilled person it goes without saying that a needle valve 23 aa is used to provide an adjustable _{inlet for the gas flow through the passages 23 and p} 23 ζ in the Borelch create ^ that would be classified by experts in the Leckir.encen ·

In the lllho dor adjustable air opening 23 χ and concentric to it there is a volumetric holder 23 bb, the olnon rod 23 cc, which can be slid through the countersunk hole 23 q through t _fl on the left ole of the hole with the Kugol 23 dd and on the Rechton Solte the Boh-

tion 23 Q via two arms 22 it is connected to the closed end of the sleeve 2J ν.A compression spring 23 ff is arranged concentrically ura the rod 23 cc sn that part of the same that is between the ball 23 dd and the part of the countersunk bore 23 q is located with a larger diameter. It is now assumed that when the sleeve 23 ν is slid inside the chamber 23 ρ, the ball 23 dd in one extreme position of the sleeve 23 ν aiii * rests on the valve pin 23 i, that is, in the one shown in FIG leftmost position shown, and that it is pulled away from the valve tube 23 i when the sleeve 23 ν is moved in the opposite direction, as shown in FIG. The spring 23 ff, if it counteracts the removal of the ball 23 dd from the seat, is not the main factor, but is supported by other, stronger springs, as will be explained later. The spring 23 ff is rather for fine adjustment in the exact seating of the ball 23 dd inserted on dom seat 23 i in the closed position. The movement of the sleeve 23 ν controls in this way the closing and opening of the connection between the hoses 22 a, 22 b by a corresponding movement of the ball 23 dd up to sitting, as shown in Figure h , and when not sitting, as in Figure 5 shown·

At that end of the bushing 23 v, which is closer to the end 23 η of the central part 23 b, there is an annular flange 23 gg, and its compression spring 23 'tui is between äen

IH IMI t »· ·

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Flange 22 cn and daa bonaohbarto lnnoro Endo dor Innonkarcmor 22 ρ Qlnrßüotz'c. DIo Druckfodor 25 hh pushes the sleeve 2jJ ν to the left, wio in the figures h and 3 goz Follows let, and thus acts in parallel su dor Fodor 22 oc, co that dlo Buchso 22 ν normalorwolco after llnko codrUclct v; ird, bio dio Ku ^ oI 22 dd on dom Vontiloltaslled 22 i aufaitat so that the valve 22 dd, 22 1 nonnalorwolQQ closed lot. The sliding ability of the BUchoo 22 ν in the Innonkarrjnor 22 p, i.e. dlo Roibunsolcraft, is applied and normalized by a number of nylon gloitlassorteilon 22 ii, which boflnd in the bores 22bt, 22 u and against the upper and lower outside of the sleeve 22 ν (Figure 6) OO 22 are pressed with the aid of loaded by springs Schraubonanordnungen, which are supported thereon and are adjustable in the pressing force. It is believed that by initially adjusting the pressing force exerted on the bearing parts 22 ii, the magnitude of the sliding friction force on the sleeve 22 ν - * can be adjusted so that the effect of this parameter on the operation of the described The facility can be set to any desired and from then on fixed value.

In the inner chamber 22 P there is movably a tightly fitting rectangular piston 22 kk (Figures h and 5), which consists of soft, self-tapping material such as Teflon, nylon or a body mixed with graphite, so that the sliding inside the inner chamber 22 P practically without

5604991

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Loss of air across the piston along its outer contact surface with the inner chamber 23 ρ can be achieved. As shown in FIG. 7, does the piston 23 kk have a piston rod 2j? im that endot in a spherical part 23 nn. In the middle of the piston 23 kk, a valve chamber 23 pp is formed, which contains a fixed annular disk 23 qq. A Vontilsltzteil 23 rr of the chamber 23 pp, which serves to create an airtight connection with the ball 23 nn when the piston rod is moved 23 mm to the right, as shown in FIGS. 5 and 7, is located away from the annular disk 23 qq shown 1st. A helical compression spring 23 normally presses the ball 23 nn and the washer 23 qq each to the opposite end of the chamber 23 pp and thereby places the ball 23 nn on the seat 23 rr. The ball 23 nn does not form a gas-tight seal with the annular disk 23 qq, but rather they simply hit against each other when the ball 23 nn is moved to the left against the resistance of the spring 23 ss (as can be seen from FIG. 7), so that an air passage through the ball 23 nn and the washer 23 qq is created when the former © touches the latter. It should be noted that this creates a countervalve device within the piston 23 kk, so that when the piston rod is moved 23 mm to the right, no air can pass from one end of the piston 23 kk to the other, but when the piston rod 23 ma is excited to the left, that air can freely pass through.

• ft · φ * M ·

• t · t · β

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Dor P.loiTion 29 iot anchored to a rod 23 tt, which is fastened to a U-fdrn-.lgon slide 23 uu, which can be verochlebbar in a slot 23 vv dos cobogonon Toils 23 d * dor rear plate 23 d . The piston rod 23 mm is with
Glnom rod 23 ww connected, which is attached to the slide 23 uu-Gtigt, and two tension springs 23 xx run in the upper
and the lower groove 23 r and 23 s of the adjustment element
23 to connect the rod 23 vrw of the slide 23 uu with machine screw 23 o, which is anchored in the main part 23 a
are. The other end of the strap 29 is attached to a substantially droiook-shaped buckle 23 yy (FIGS. 4 and 5), which is detachably received by a hook 23 as (FIG. 2) which is attached next to the hose connection parts 26 on the The end of the fastening element 23 is attached. The springs 23 xx and the toilet dos main part 23 a to the left of the screws 23 e thus form a part dS3 of the entire circumference of the belt 29. The springs 23 xx absorb the through the inhalation. The breathing and exhalation of the person carrying it caused expansion and contraction of this urafang and produce a pre-tension
the belt to contract its circumference

In operation, the actuating element 23 is through the one with the buckle 23 yy attached end of the strap 29 held and the movement of the diaphragm is transmitted to the slide 23 uu at the other end of the belt 29. On cliese V / else causes the two-skin to expand and contract of the wearer that the belt 29, the slide 23 uu after

hh fl 41 IJ U I

• 9 · ·

roohts or, on the left relative to dom Kaupttoil 23 a the bot-ut-igungseleniantGs bsw, against and with the tensile force of the tension springs 23 xx bowogt. The arrangement of the ^ ollo shown in FIG. 4 shows a tent point during the breathing _{cycle of the 3 wearing άοη Β} when he is in the prelude to the exhalation or has just finished exhaling, so that his unifan at the eleiaon

the force of the compression springs 2p hh and 2 ^ ff could decrease. When the belt is bent in this way, the piston rod moves 25 mm to the left, so that the ball 23 nn in the piston 23 kk leaves its seat 23 rr and touches the ring disk 23 qq. This allows Fas to pass from one side of the piston 23 kk to the other side so that the rigid piston moves freely to the left during exhalation and allows the entrapped gas to pass to the right side thereof. The springs 23, zcx, are thereby enabled to contract the circumference of the belt 29 and to move the piston to the left without the resistance of the gas trapped to the left of it.

When the piston 23 kk moves to the left, wa3 oin contraction of the belt 29 and accordingly indicates the beginning of exhalation by the wearer, then the piston valve 23 nn, 23 rr is open so that the sleeve 23 ν has no negative pressure that it holds to the right, and it moves under the pressure of the springs 23 hh, 23 ff to the left until the ball 23 dd rests on the seat 23 1. Wi © explained here

6504991

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whether the sleeve 25 ν is moving to the left according to the actual left movement do3 piston 25 kk or whether this is due to a loss of gas at the opening 25 x. of the needle valve precedes depends on the nature of the wearer's breathing cycle in general and the current cycle in particular. This important property γ / will be discussed in detail here. In this case it is only sufficient to admonish that when the negative pressure at the closed end of the bushing 25 v, to the left of the piston 25 kk, is eliminated by the piston valve 25 nn> 25 rr or is sufficiently reduced by the opening 25 χ of the needle valve, the valve 25 dd, 25 Is that controls the oxygen flow closes. It should be noted that when the ball 25 dd rests on the seat part 25 i, no oxygen can flow more from the hose 22 a to the hose 22 b and thus the inflow and waste of oxygen wührond the part of the Breathing cycle of the wearer, on which he does not inhale, is prevented with the benefits and advantages explained by boreits *

If begins in the respiratory cycle next inhalation, then dor circumference of the belt 29 of the wearer on Rlcnon 29 starts to increase due to the expansion of the chest, and on therefore begins dor slider 25 may move to the right, wl © in Figure 5 you can see. Depending on the setting of the belt 29 and the setting of the various other parts © will be at a certain point

• S ·

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during the inspiratory portion of the respiratory cycle, preferably boim the beginning odor near the eogiim of the same, the sphere 23 dd away from dom seat part 25 i, as shown in FIG is, and allows oxygen gas from the hose 22 a to the tube 22 b and thus to the cannula 24 flows. That occurs because the valve 23 nn, 23 rr of the piston 23 kk as a result the right movement of the piston rod 23 closed is and in this way created a negative pressure in the closed end of the sleeve 23 ν to the left of the piston 23 kk will. The sleeve 23 ν follows through that generated by the vacuum Force the piston 23 kk to the right, but only as long as v / io the piston moves to the right. Dar constant gas loss in the socket © 23 ν at the needle valve opening 23 χ leaves the Bushing 23 ν return to the left again after the piston 23 kk has stopped moving to the right.

The inner parts of the Batütiguncselementes 23 cooperate dd to close the Ventilü 23, 23 i inhaled during en3 Ausatrr.ens and open the same wührend inspiration for the aforementioned purposes to bev? Irken _P characteristic lilrd, the scope <2 © 5 belt 29 so enlarged that the slide 23 moves to the right and thereby pulls the piston 23 kk to the right and lets the Kolbonkugel 23 η rest on the seat 23 rr, so that in the closed end of the beech tree © 23 ν there is a vacuum If an extension of the belt 29 indicates an inhalation, then the speed is

9 9 *

and depth dsGcolbsn so that it zoiiste in dor Eüchse 23ν Vacuum despite the lock at the needle valve opening 23 χ trains. The sleeve 23 ν therefore follows the piston 23 kk infolce the force generated by the vacuum to the right and da3 valve 23 dd, 23 i opens and supplies oxygen the cannula 24.

When the wearer inhales, whether shallow or deep, the parts are adjusted so that the valve 23dd, 23i opens for a time that is at least as long as the circumference of the ^{wearer 2} ^ Riercen 29 still increases. In general, it remains open for a short time during inhalation, after the wearer's diaphragm has stopped expanding, because it takes a certain amount of time during which the sleeve 23 returns to the left and the negative pressure in it is further consumed "The essential point, however, is that when the diaphragm has stopped expanding, the valve 23dd" 23 i, an adjustable but limited tent, closes later. This prevents a waste of oxygen by the fact that with most Leutons, especially when they are resting, there is a considerable length of time between the end of inhalation and the contemplation of exhalation Exhalation has started to close the valve 23 dd, 23 1 and thus wolteron oxygen to oparon. Shallow inhalation opens the valve 23 dd, 23 i for

short periods of time while deep inhalation closes the valve 23 dd, 23 1 opens for lance periods. In all cases is the period of time * during which the valve is open, in a precise relationship to the lows of inhalation and eliminated especially the length of stay at the end of the same.

The sleeve 22 ν is braked by springs and in particular by spring 23 hfc. A gev / isse minimi «? Force is required to move the sleeve 23 ν even against the braking force to the right. Most body movements other than inhalation are shallow and short-lived insofar as their effect on bees 29 is concerned, and resulting movements of piston 23 kk to the right do not create enough negative pressure in the closed end due to the braking bias of spring 23 hh the sleeve 23 v to open the valve 23 dd, 23 i for the first time · The entire preload naturally includes the springs 23 xx. » and these springs can initially be adjusted by the wearer by adjusting the position of the buckle of the strap 29 by lengthening or shortening the effective circumference of the strap.

The essential thing about this is the reduction of the oxygen consumption to at least half, "which results from the blocking of the oxygen during the exhalation _β of clearly supporting Bsdeatuns is the characteristic of the blocking at the end of the inhalation, before the exhalation begins

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(ircnrar if there is a lingering there) and the distinction between andoron Bructkorbbcv / egungon as inhalation and the inhalation bowcgungen. This latter distinction is achieved as a result of the spring preload just mentioned, the leakage valve in dia Büchce 25 v, which prevents aaa valve 2j5dd, 25i from opening through very slow expansion of the chest of the wearer (e.g. the frequent natural displacement dor Kaituns of the body) s-opens, and infoleo the fact that any reversal of the direction of the piston 25 kk, also snorcentan, causes a complete return of the can 25 ν hor. Obcleich of oxygen, which is saved by these properties, very untongeordneS is la compared to the tremendous savings that are caused by shutting off the Sau-.erstoffs during Ausattsens itself, can even bring these additional Sinsparunsen additional benefits of the facility.

Reference is now made to Figures 9-12, in which a second embodiment of the invention is shown is. The principles used in the second exemplary embodiment are r-literally the same as those used, dio were used in the first embodiment game, and the like Denote reference characters in the two exemplary embodiments equal parts of the same. In the second embodiment, the adjustment element 25 is not designed as a laminate, with the two plates one in between

Main great umgober., Wlo In thorn first AusfUhrungsboispiel "The Einotollelomont 23 onthUlt rather, as in don Figures 9 and 12 to Sohon 1st, a thicker Haupttoil 23 a ^f to dom a single Platto 23 d at the back thereof attached eats and The thorn wearing su shows "The plate 23 d has hook 23 sz at its olnon end to connect to the oinon end of the strap" 29, and at the other end is the gäbosönö Toll 23d *, the slot 23 w into which the sole upper 23 fits, connected to the other end of the guide 29, everything wio in the first execution sleeve.In this two-tone execution the upper and lower groove 23r, 23s are on the back of the Haupttolles 23 a and are completed by the adjoining part of the rear plate 23 d. The springs 23 xx fit into these grooves in the same way as already described. The slide 23 uu is connected to a piston rod 23 mm ⁸ , which in this embodiment is bent on the dome part that is connected to the slide 23 uu. This was done because gin kroiszyllnderförroiger flask uses 23 kk * xvurdo, which has a '-. ■ "' greater ratio L2ngo and width than the right- '·' ^ ¹ * - * angular flask 23 Ick of the first embodiment The piston rod 23 mm at a greater distance in front of the rear plate 23 d and thus requires the bend at the end of the rod, which is attached to the Schicbor 23. Instead of this, pistons with a different cross-section can of course be used.

»Ι · ι ι ι ι I t I *

i: .in nit oinorn Plansch vorcchcnes fitting 30 fits with oinem Sewindo in elnon with Gevlndo provided end part of an inner chamber 23 p ^f . The shaped piece 30 diont alo Gohüuno with domed puddle for oine compression spring 23 hh and also as a limitation for the P.ochtsbowogunc; einor rifle 23 ν ^β _β The innoro Kammor 23 p * and dlo rifle 23 v ° are of course zyllndorfürmlg so that they work precisely with one another and with the cylindrical Kolbon 23 kk *. The ratio of piston 23! De to DUchGO 23 v ¹ on the other hand, d 3 equal vjie already be-D'ohrieben vairdo, except docsen _e that no positive connection consists zvilschon the bushing 23 v * and the valve dao dio flow of oxygen from the hose 22 a to the hose 22 b controls. Süatt that illustrates seat portion 23 h ¹ concave goformt 1st to accommodate Oine ball, as in the first Ausführungsbeiopiel, it has a convex shape, ura having a planar movable seal surface 23 dd ¹ cooperate ax · During dd in the first embodiment, the valve parts 23, 23 1 were normally held together by a spring 23 ff, the valve parts 23 dd ¹ , 23 1 * in the ^ second embodiment are normally kept separated from one another ^{with the aid of a compression spring 23 ff 1.} However, the valve 23 dd ¹ , 23 i ^{1 of} the second embodiment is normally always closed, just as in the first embodiment, because the sleeve 23 v ¹ as well as the lizard 23 ν are normally left by their respective springs 23 hh ¹ , 23 hh is pressed. The effect from the point of view of the whole establishment is merely

the, dlo sv / cmcplliuflGo connection; Separate between dor BUSHs © 23 v * and dom Vontllgllcd 23 dd ⁹ au

From when the nozzle 23 ν * is bowed to the nose, as shown in FIG. 11 CGKOlGt let, thereby attracting the wearer to inhale, then the adjustable air opening part 23 χ dor-πα lbon is moved and allowed by the limb 23 dd ' of the spring ^ 3 ff ¹ to open the valve 23 dd ¹ , 23 i *, and don the oxygen to flow from the hose 22 a to the hose 22 b and from there to the cannula 24 (Figures 1 and 5) when the Bushing 23 v * returns to the left, either vrail dlo piston rod returns to the left or v: eil the negative pressure in the closed end of the bush 23 v * has been canceled by the imaginable air opening position 23 χ, then it touches link 23 dd ¹ and again moves it under the pressure of the spring 23 hh to the left back against the spring 23 ff ¹ in contact with the seat 23 i ¹ .

It should therefore be evident that in the second guide element there is no inevitable connection between the valve members 23 dd ¹ , 23 i ¹ and the bushing 23 v ¹ , which, together with the molded piece 30, makes it easier to dismantle the parts inside the chamber 23 ρ * from cleaning or adjustment permitted. Furthermore, the greater thickness of the main part 23 a * allows the use of a cylindrical piston 23 kk * with a "larger effective area, v; as per unit movement of the piston 23 ick * to the right a larger one

ü 4 υ 91

• · ■
t · ·

did

It is much more clear to the experts that many modifications

- 27 -

Suppression on the EUehco 22 v * supplies. VJio already mentioned, v.Tardo, dio two Ausführuncsbeispielo work in all other Beziehuncen in exactly the same way and under the \ same medical and ir.achanischen principles.

Although the invention has been described with reference to two specific production games, this has been done for the purposes of illustration only, and it is shown in a coincidental manner that the Eyfi-ndiincr © in2? Us? ^ Ir "Ink @ ii = % '

ί gen in the shape and arrangement of the parts within the framework of the | The principle of the invention explained above is carried out can. ί *

Claims (10)

II T I B 1 S I 1 »III! - 28 - Eye protection claims 1. Means for supplying oxygen for breathing from a supply through a line to an external part in order to supply a person intermittently and according to each inhalation. Characterized by a valve (22 dd, 22 i) arranged in the line (22 a) with a movable part which can be moved between the "open" and "closed" lugs, around the supply (22) in a corresponding V / iron kit to connect or separate from the outlet part {2k)? by a sensing device (29, 23 uu, 23 nsa), which is used to sense the expansion and contraction of the chest of the person External contact is arranged therewith and one side of which forms a movable wall which cooperates with part of the interior space to form a variable part of the chamber, the piston being responsive to the sensing device, in order to move in the first direction move and to vorlindorn the volume of the variable Karcraortell in a first sense, when the filling device detects Gin expansion, and to move in a second direction and to change the volume of the variable camera part in a different sense, the sensing device won us a sympathy and where the gas pressure in the changeable ICanraortGll is inversely proportional to the volume in each case change us the same changes, uiid also eekennzoich «· 1-29- _ »T f “IS I> 1 ι mi γ ι - 29 - net by oino bot actuation device (22 cc) that clicks on the Kndoruns of the gas pressure in the variable chamber part responds, the volume in the first sense changes in order to cause the movable valve part to move into position "Open" bowsgt. 2. Device according to claim 1, characterized in that the · first sense a gunahne and the second sense a decrease of the volume of the variable chamber part corresponding to the Causes decrease and increase in gas pressure therein and that the open 3es said valve part (23 dd) on the decrease of the Gas pressure into your volume of the changeable Kacher oil he follows. 3. Device according to claim 1 or 2, characterized in that that for the changeable part of the body a controlled one Drainage device (23 x, 23 aa) provided 1st. 4. Device according to claim 3, characterized in that the controlled discharge direction has an opening (22 z) which connects the variable Kanmar part with the urasebenden atmosphere and has a seat and a needle valve (23 aa) which is adjustable with respect to the seat 5. Device according to one of the preceding claims, characterized gekennzolclinet that the piston »n with the sensing device is connected and is driven by this. -30- r- 1 \ (h - 50 - 6. Establishment according to olnor.i dor vox-horgohondon address », daduroh gckcnnzoichnot that oino spring arrangement (23 hh) don Kolbon normalorwoiao pushes in the swoite direction. 7. Device according to claim 6, characterized in that gokonnsoiohnot dl © Sensing direction Qin Qliod (29) that the Parson ungibt and coino tension according to dom vorgrcSßorton odor or decreased, and that a free endo (23 now) dos uragobcndon Gliodo3 (29) with dom Kolbon (23 idc) vorbundon is, ura to move diocon in the orste or two-way direction, 8. Device according to claim 7 *, characterized in that the piston (23 kk) is movably arranged in a Büchso (23 v), dio has a closed end that is to the back and forth Moving forthcoming sliding stored in the you room (23 p) and is led. 9. Device according to claim 8, characterized in that the position of the bushing (23 v) controls the position of the valve part (23 dd) so that the bushing is pretensioned in a position in which the valve part (23 dd) is in the position " Geschlo3-son ⁿ moved, and in that the sleeve is movable from the vorgespannton position, un the valve member corresponding to an excess of the negative pressure on the Vor3pannungskraft, the iderlichen by the decrease of the gas pressure in dom ver & Kansaerteil vjird causes of de? position "Closed * in the ι t ι ι ι It Il Move to the "open" position · 10. Device according to claim 9 * characterized * that A valve (23 nn, 22 r?) is arranged in thorn piston (22 kk) ict to ease the pressure in the changeable Katara river. 0 / a Qß