US1512486A - Apparatus for administering anesthetics - Google Patents

Description

Qu 21. 192k R. E. T. RHAMEs APPARATUS FOR ADMINSTERING ANSTHETICS Filed March 22. 192s Patented Qct. 2l, 1924iu RUDOLPH E. T. RHAMES, OF BOSTON, MASSACHUSETTS.

APPARATUS FOR ADMINISTERTNG ANESTHETICS.

Application filed March 22, 1923.

all whom 'it may Concern.'

Be it known that I, RUDOLPH E. T. RHAMES, a subject of King George V, of Great Britain, residing at Boston, in the 5 county of Suffolk and State of Massachu'set-ts, have invented new and useful linprovements in Apparatus for Administer ing Anaesthetics, of which the following is a specilicaton.

This invention relatesto an improved apparatus for administering anaesthetics and has tor its object to provide a simple, etlicient apparatus through the medium of which liquid anaesthetics such as vether and istered by physicians to patients.

Another object of the invention is to provide an apparatus in which a liquid anaesthetic may be ted, either by gravity oriinder pressure, from a container in which it is stored to a hood secured beneath. said container, said hood resting upon the taceqot the patient, the ansthetic being supplied either in drops or in a spray to an absorb ent material from which the fumes are inhaled by the patient. I

Another object oi the invention is to provide a means for indicating the rate ot teed of the liquid anaesthetic from the container to the hood.

Still another object ot the invention is to provide an apparatus which may be u tilized in administering gaseous ansthetics and oxygen gas which are not stored in the container oit the apparatus, but are stored in separate containers and are delivered to the hood of the apparatus ot this invention by any suitable conducting means which may be connected to the hood.

The invention consists in the combinae tion and arrangement ot parts set 'terth in the following specification and particularly pointed out in the claims thereof.

Referring to the drawings:

Figure 1 represents a central vertical section through an apparatus embodying the invention. Y

Fig. 2 is a plan view of the upper portion of the apparatus.

Fig. 3 is a detail section taken on the line 3-3 of Fig. 2.V

Fig. l is a detail elevation illustrating the mechanism that permits the hood to be adjusted relatively to the base.

chloroform may be vaporized and adinin- Serial No. 626,941.

Like numerals refer to like parts throughout the several views ot the drawings.

ln the drawings, 5 represents a container tor a liquid aneesthetic, as for example, ether or chloroform, said container coinprisiug a base 6, a transparent cylindrical member 7 mounted upon said base and a cap 8 in which a filling opening 9 is provided through which the anaesthetic is supplied to the interior of the container. The filling opening 9 is provided with a suitable cover 10. Formed integral with the base 6 and also concentrically disposed relatively thereto is a pressure cylinder 1l from the upper end ot which project-s a tubular extension 12 which is screw-threaded at its upper end to receive a nut 13, the latter being provided to clamp the base tl, transparent member 7 and cap 8 tightly together. A gasket 14 is interposed between the base 6 and the lower edge ot the transparent member 7, while another gasket 15 is similarly interposed between the cap nd upper edge of said transparent mem- Located within the pressure cylinder 11 is a piston 16 provided with a tubular pia ton rod 1T which extends upwardly through the tubular extension 12 and said piston rod has a handle 18 fastened at the upper end thereof through themedium of which a reciprocatory motion may be imparted to said piston. The piston 16 is prevented from rotating within the cylinder 11 by a pin 19 which projects from the upper portion of the cylinder 11 into a groove 2O provided in the tubular piston rod 17. Ports 21 are provided in the side wall of the pressure cylinder 11 and form a means whereby the liquid anaesthetic may pass Ytrom the interior of the container V5 to the interior ot' the pressure cylinder 11. Small bleed openings 22 are also provided extending through the upper end ot the pressure cylinder and said openings also connect the in terior of the container 5 with the interior of the pressure cylinder 11.

Located at the lower end of the pressure cylinder 11 and constituting a part thereof is a detachable end member .23 in which a discharge port 2a is provided together with other ports 25 which connect the interior of the pressure cylinder with said dis@ Y minute.

:formed hifi-he .nozzle 35.

38 ie a hood 39 Whie 1 v lattere nose. and mouth charge port 24. The disoharge port 24k has a. needle valve 26 provided therefor ing a valve rod 2? which has sereni-threaded engagement at QS withV the niemher S3 of the handle 187 and indicates the ei. towhich the valve has he i raised from the discharge port Q4, the rate loit feed of the hq l aneestlietio through said discharge por` in drops per with The sierenvw hread preerahli douhle thread in order lui of the valve rod 27 will en close the dieeharge port 24T.

the same in its normal position. trated in Fig. 1.

With a pluralitji7 of smell formed'thoreiu through which t either chip or he forced in :i Q1raf llilhen in position, as illuat the nozzle 2:.1; ehuts anainsi" the C3 x of the ineniher and therein;T ao nut to prevent jthe enigl inernier tating and thereby lgieoorning' lo the body portion of the pressure t is evident that the liquid ai allowed to flow tl rough the 24 may drip slowly through o the openings Sol, as desired, ai by the position of the valve mayY loe applied upon the an `the irireesure cylinder ll hy ol tonl 16 upon which occasion Extending: downwardly portion ot toe has 1 S is an i 1n. which plurality olf o M vided. Eetaehahlu.7 Seeuied to th 1 4. .C 1l th .ouen ...he inooiuni oi a nlula s o forni to oever the face of a provided with slots through Screws 38 project ther l ji' allou'ingeaid 39 to he rotated elipgh-ly. and openings are aligning with the op 36 and the aniount A the hood 39 may be .te-il u hood upon Said flange and in Vi i infgs 4l relatively to the @ein loy increasing or decreasing the actual opening into the hood.

upon the lume i.

fr Cup-Shaped screen 42. preferably rformed oit' .line inesh Wire. is loo-oiied in an inverted position Within the hood 39 :ind n. layer ot itnhle alas` rhent material fl-S rovere the no per Surface of said screen. A nnounifll'ii' ouehion fiel is hehP agjziinnt the loxifei' odge o lt tie hood 39. Seid Cushifin lining inovidiid With n. flap 415i 'Whioh in Stietoheil :i round tho perinheiy oiL said hood nhoi'o :i hond lo located at the loive.` odpjo of nid hood. The Cushion fl-l; is provided with a ruhe '27 througli which air iS blown into said ('ueliion. alleiwhich Suid tulie eloeed through tl e inediuin of a iuitahle Clamp fl-8 Whirh pinches the 1 einen,

. nfliirli deeignnlie ho nunilinu I i* minute tlizit il' in deeiled lo 'Food to nl: material. lllhen the anni thethn is i'ed lijf gi'avitj alone. the Horny now.u .'.le maj-7 or may not lie used :inv desired.

irertli through ihn diifehnf he :i Horb/nt material 11",.

noA `nfl drip through one oi' more ol' l heine' determined if lli@ position of liu volw Ydill-en :i Sii. in ed. lli@ pinion il? rod l? sind towed opeuin o. the nuwfitl notario upon r i .I the ui ne? portion of the in'ene'ii'o njflindei the liouidoithin .Caid cylinder :ihovn wid pieton will pase 'troni Suid Cylinder lln'ouoli the hleed onf-ni inf-o the nontninin'. The amount of en uch in admitted to the interior of the hood 9G in ro@ elated ln rotzit l, ino; Said hood upon, li e L l 'he bane 6 and thereby moving' the openings Alil. in the lill) llo hood relatively to the vopenings 37 in the nange 3G.

Upon occasions when itis desired to utiiize the apparatus to administer gaseous anaesthetics or oxygen gas to patients, a conductor from the container in which said anaesthetics or gas are contained is secured to the nip-ple 49 tast in the hood 39 and the patient inhales these gases in exactly the same manner as the vapor of the liquid ansthetics previously mentioned.

I claim: y

1.. An apparatus for administering anecsthetics comprising, in combination, a hood, a container for an an'eesthetic mounted upon lsaid hood, a pressure cylinder for said anesthetic interposed between said hood. and said container and Communicating with both and means to 'force said aneesthetic from said pressure cylinder into said hood.

2. An apparatus for administering anaesthetics comprising, in combination, a hood, a container for an anaesthetic mount ed upon said hood, a pressure cylinder for said anaesthetic interposed between said hood and said container and communicating With both, means to force said anaesthetic from said pressure cylinder into said hood and means to produce a spray of said anzesthetic as it passes trom said pressure cylinder int'o said hood.

3. An apparatus for administering auaesthetics comprising, in Combination, a hood, a container for an anaesthetic mounted upon said hood, a pressure cylinder for said anaesthetic interposed between said hood and said container and communicating With both, means to torce said anaesthetic 'from said pressure cylinder into said hood and means to regulate the amount ofs'aid anaesthetic passing to said hood.

An apparatus tor administering aneesthetics comprising, in combination, a hood, a Container for an 'anaesthetic mounted upon `said hood, a pressure cylinder for said anaasthetic communicating With said container and provided With a discharge port communicating with said hood, means to force said anaesthetic'- from said pressure cylinder through said dischargeport into 'said hood and means `to regulate the amount of said anznsth'etic passing through said discharge port.

5., An apparatus for administering aintesthetics comprising, in combination, a hood, a container for an antestl-'ietic mounted upon said hood, a pressure cylinder -or said ancsthetic located `Within said container, the interior of said cylinder communicating' With the interior of said container, said cylinder also being provided With a discharge port communicating with said hood, means to force said anaesthetic from said pressure cylinder through said discharge aesthetics comprising,

port into said hood and means to regulate the amount of said anaesthetic passing through said discharge port.

6. An apparatus tor administering anaesthetics comprising, in combination, a hood, a container ior an anaesthetic mounted 'upon saidhood, a pressure cylinder :tor said anaesthetic located Within said container, the interior of said cylinder communicating With the interior of said container, said cylinder also being provided with a 'discharge port communicating With said hood, means to force said anaesthetic from said pressure cylinder' through said discharge port, means to produce a spray of said anzesthetic and means to regulate the amount of said anzesthetic passing through said discharge port.

7. An apparatus for administering anaestlietics comprising, in combination, a hood, a container for an antesthetic mounted upon said hood, a pressure cylinder for said anzesthetic located Within said container, the interior oi said cylinder communicating With the interior of said container, said cylinder also being provided With a discharge port communicating With said hood, means to torce said anaesthetic `from said pressure cylinder through said discharge port, means to produce a spray of said anresthetic, means to regulate the amount ot said amr-esthetic passing through said discharge port and means to indicate the rate ot feed ot said anaesthetic.

8. An apparatus for administering anaesthctics comprising, in combination, a hood, a container tor an anaesthetic mounted upon said hood, a pressure cylinder for said anzesthetic located Within said container, the interior ot said cylinder communicating With the interior ot said container, said cylinder also being provided uitha discharge port connnunicating With said hood, a piston to torce said anzesthetic trom said pressure cylinder Hthrough said discharge port into said hood and a valve to regulate the amount ot' said anaesthetic passing through said discharge port.

9. An apparatus for administering anin. combination, a hond, a container tor an anassthetic mountN ed upon said hood, pressure cylinder for said antesthetic located Within said container, the interior et said cylinder vcommunicating with the interior of saidfcon: tainer, said cylinder also being provided with a discharge port communicating With said hood, a piston to torce said anaesthetic Vtrein said iniessure cylinder through said discharge port, a spray nozzle fast to said pressure cylinder beneath said discharge port and a valve to regulate the amount of said anaesthetic passing through said discharge port.

10. An apparatus for administering anaesthetics comprising, in combination, a hood, a container for an aneesthetic mounted upon said hood, a pressure cylinder for said anaesthetic located within said container, the interior of said vcylinder communicating with the interior ot said container, said cylinder also being provided with a discharge port comnnmicating with said hood, a piston to force said ansesthetic trom said pressure cylinder through said discharge port, a spray nozzle fast to said pressure cylinder beneath said discharge port, a valve to regulate the amount vof said anaesthetic passing through said discharge port and means to indicate the rate oit feed oi said aneesthetic.

11. An apparatus for administering aneesthetics comprising, in combination, a hood, a container for an anaesthetic mounted upon said hood, a pressure cylinder for said anaesthetic located within said container, the interior of said cylinder conmunicatingl with the interior of said container, said cylinder also being provided with a discharge port communicating with said hood, a piston to force said antesthetic from said pressure cylinder through said discharge port, means to return said piston to its normal position, a spray nozzle fast to said pressure cylinder beneath said discharge port, a valve for said discharge port, and means to indicate the rate et feed ot said anaesthetic.

12. An apparatus 'for administeringT anaesthetics comprising, in combinationn a hood, a'container for an aiuestlietic mounted upon said hood, a pressure cylinder ior said anaesthetic located within said container, the interior of said cylinder communicating with the interior of said container, said cylinder also being provided with a discharge port communicating with said hood, a piston within said cylinder, a tubular piston rodeXtending upwardly through said container, ahandle for said piston rod, aspray nozzle tastto said pressure cylinder beneath said discharge port, a valve for said discharge port, a valve rod extending through said piston rod and a handle 'tast to said \,alve'rod.`

13. An apparatus ior administering anaesthetics comprising, in combination, a hood, a container Jfor an anzesthetic mounted upon said hood, a pressure cylinder for said an- `esthetic located within said container, the

interior of said cylinder communicating with the interior of said container, said cylinder also being provided' with a discharge port communicating with said hood, a pis-- ton withinV said cylinder, a tubular piston vrod extending upwardly through said container, a handle Jfor said piston rod, said handle being provided with graduations thereon, a spray nozzle fast to said pressure cylinder beneath said discharge port, u valve for said discharge port` a valve rod extending through said piston rod, a handle `tust to said valve, rod and an indicator tasty to said valve rod and registering with said graduations.

14. An apparatus tor administering anzcsthetics comprising, in combination, a hood provided with openings therein. a container for an anaesthetic embodying therein a hase mounted to rotate upon. said hood and provided with an annular flange havingr open ings therein normallv aligning' with the openings in said hood, a pressure cylinder for said anaesthetic located within said oon-- tainer, the interior oi sa id cylinder commu-- nicating with the interior ot said container` said cylinder also being provided with a disV charge port communicating with said hood. means to torce said anzesthetic from said pressure cylinder through said discharge port into said hood and means to regulate the amount of said anaesthetic passing through said discharge port.

l5` An apparatus for administering anzesthetics comprising, in combination, a hood provided with openings therein, a container for an anaesthetic embodying therein a, hase mounted to rotate upon said hood and provided with an annular flange having openings therein normally aligning with the openings in said hood, said container also embodying therein a transparent cylindrical member mounted upon said hase and a cap; a pressure cylinder for said anresthetie located within said container, the interior o? said cylinder communicating with the interior of said container, said cylinder being` provided with a tubular extension projecting upwardly through said container, means fast to said tubular extension to clamp said base, cylindrical member and cap together. said cylinder also bein provided with a discharge port communicating with said hood, a piston within said cylinder, a tubular piston rod extending upwardly through said tubular extension, a handle for said piston rod, a spray nozzle tast to said pressure cyl-- inder beneath said discharge port and :i valve for said discharge port.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

RUDGLPH E. T. RHA MES. Witnesses FRANKLIN E. Low, Hazen F. LA MUDsn.

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