Патент USA US2104988код для вставки
Jan. 11, 1938. J. A. HEIDBRINK 7 2,104,988 ANESTHETIZING MACHINE Filed May 4, 1936 Gas Deliver'l'n a Machine 20/’ 3 Sheets-Sheet 1 Jamll, 1938. 2,104,988 J.'A. HEIDBRINK ANESTHETIZING MACHINE Filed May 4, 1936 5 Sheets-Sheet .2 Pia-5 “WA” 75 K3 0K We 0n? r ImwwKH.nM./ M. in w. .r. .Farg. 11, 1938. J. A. HEIDBRINK 2,104,988 ANESTHETIZING MACHINE Filed May 4, 1936 5 Sheets-Sheet 3 MW B5 ww R'ttor-neys Patented Jan. 11, 1938 2,104,988 _ UNITED "STATES PATENT OFFICE 2,104,988 ANESTHETIZING MACHINE» Jay A. Heidbrink, Minneapolis, Minn. Application May 4, 1936, Serial No. 77,734 ‘7 Claims. My invention relates to anesthetizing machines and has for its object to provide certain improved and advantageous features for thattype of gas administering machine in which mixtures of gases 1 may be supplied to the patient and wherein at the will of the anesthetist ether vapor may be added to the mixture of gases. The aforesaid improvements are applied to a gas-administer ing machine in which there is a closed circuit, 10 that is where the exhaled gases go through ‘ab sorber mechanism to remove excess carbon diox ide therefrom and pass to the rebreathing bag and thence back to the inhale side and to the inhaler back to the patient, going through the ether vaporizer on the way. Great advantages follow an arrangement ‘of flow such that the exhaled gases pass through the ether vaporizer, since such gases are warm and are not'unreasonably cooled’ by the evaporation 20v of ether into the circuit. It has been found, how ever, that passing the exhaled gases through the ether vaporizer has a tendency to condense mois ture carried by the exhalations'from ‘the patient and dilute the ether. This ‘has a double disad vantage ?since the anesthetist determines the amount of ether from the liquid seen through ‘the glass ether container, and, further, since ether diluted with Water will not have the same capacity for giving 01f its anesthetizing vapors that the normal pure ether will have. From the ' fact that both the ether and the Water vapor are colorless the anesthetist will have no way of de termining with a su?‘icient degree of accuracy whether the supply of ether in its container is pure ether or diluted with condensed water. I have discovered that the advantages of keep ing the ether vaporizer on the exhale side of the closed breathing circuit can be retained and the aforesaid difficulty of diluting the ether in its 40 container be avoided by Passing the exhaled gases ?rst through the absorber mechanism, which not only will remove the carbon dioxide therefrom but enough of the excess water vapor carried by it will also be removed so there will be little or 45 no condensation of such water vapor in the ether container. - It is ‘a principal object of my invention, there fore, to provide means in a closed breathing ‘cir cuit, for causing exhaled gases to pass ?rst through absorber mechanism and then, where employment of ether is desired, through an ether vaporizer to the rebreathing bag and the inhale side of the breathing ‘circuit. It is a further object of my invention to pro 55 vide in combination with the aforesaid means for (Cl. 128-203) controlling the vflow of exhaled gases, a plurality of containers for soda lime or other carbon diox ide absorber material secured in the apparatus‘ in such manner as readily to be removed for re ?lling or change of ‘soda lime while another soda lime chamber may continue to be in use. Other objects of the invention are to improvev an anesthetizing apparatus having the features above de?ned so as to greatly increase its sim plicity and the ease and e?‘icacy of its operation. 10' The full objects and advantages of my inven tion will appear in connection with the detailed description thereof, and its novel features are particularly pointed out in the claims. In the drawings, illustrating an application of L555. my invention in one form, Fig. ‘1 is a plan view of anesthetizing apparatus embodying my invention. Fig. 2 is a sectional plan view taken on line 2-2 of Fig. 5. Fig. 3 is a’ sectional plan view taken on line 3—3 of Fig. 5. Fig. 4 is a fragmentary part sectional eleva tion view takenon line 4-4 of Fig. 1. Fig. 5 is a sectional elevation view taken on line 5—-5 of Fig. 1. Fig. 6 is a sectional plan view taken on line 6-6 of Fig. 5. Fig.7 is a sectional elevation view taken on line 'l—'! of Fig. 2. Fig. 8 is a side elevation of my machine with some parts broken away and in section. Fig. 9 is a sectional plan view on line 9—9 of Fig. 8. Fig. 10 is a sectional plan view taken on line l0—l 0 of Figs. 5 and. 8. 30. As clearly shown in Fig. l, a conduit ll leads to a gas-delivering machine wherein a mixture of anesthetizing gases such as carbon dioxide and oxygen is formed-and delivered to the patient. From the conduit H a conduit, l2 leads to a 35 valve chamber l3 above the inhale valve 14 of Fig. 8 and to inhale outlet I5 and inhale tubing Hi, from where it goes through inhaler valve mechanism IT to the inhaler mask l8. From the inhaler mask l8 gas passes through the valve mechanism I‘! to exhale tubing l9 to conduit 20, from which it goes to exhale valve chamber 2| below the valve disc 22 of Fig. 5. As ‘shown in Figs. 5 and 8, mechanism is provided to close 01f the exhale valve 22 so that exhalations may go 45 to atmosphere at the inhaler valve H but at the same time so as to provide safety escape against building up of excess pressure in the lungs of the patient. This is effected by means of a pressure plate 26 held to move freely on stem 21 50 by means of a coil spring 28 around said stem. The stem 21 is connected at 29 with a rockshaft 30 adapted to be operated by a ?nger lever v3| whereby the pressure plate 26 is brought in con tact with the valve disc 22, which is thereby held 2,104,988 2. ill i in closed position but capable of moving against the compression of spring 28. The compression ers 35 or 36 may be simply and readily with drawn for re?lling while the other container is force of this spring is such that release of gas pressure in the exhale side of the closed breath ing circuit will be effected before such pressure reaches a dangerous degree. From valve chamber 2| a passageway 32 leads through a valve chamber 33 in a. preferably in use, in which case of course the ports 68 and tubular casing member 34-, which at the same 10 time forms a housing ‘for valve mechanism here-V inafter described, .a' gas passageway .for. exhale union nut 69, is secured said head casing 68 of 6| are in full register with the openings through tubular bosses 31 and 38. Upon the casing 34, angularly disposed in refer ence to bosses 31, 38, is a third boss 66 to which, by means of a boss 61 on head casing 68, and a ‘an’; ether‘: vaporizer. The passageway through 10 tubular bosses 66 and 61 opens through port 16, Fig. 7, into valve chamber ‘II in casing 68. A gases and. a support for the soda lime containers 35 and 36. ' 51:1 . second port 12 leads from said valve chamber ‘H to a tubular member 13, Figs. 2 and 8, which in My novel manner of forming and supportin 15 15 these containers in gas-tight relation ‘with the "*turn‘opefis" into tubular standard 14 having at valve chambers 33 and 33a’ (for the lower part ,3 itsdower endrebreathing bag 15 and opening at its upper end into valve casing l3 below valve thereof) will now need to be described.‘ _, The casing member 34 carries upper‘andllower' *1: :disc |4‘.~- The ‘valve casing 68 embodies a par sets of tubular bosses 31, 38, Fig. 5, which, as -_; ,titioning member 16 which separates out of cham 20 20 shown in Figs. 2, 3 and 10 are formed with the “ ber ‘II a gas outlet chamber 11 which’ may be in members of ‘each, pair ‘extending at right'angles communication‘ with chamber '|| through a port to each other as indicated ‘at-38 and 38’ of Figs. ~ 18, Fig. 7. The bottom of chamber ‘His in com 2, and 3, and. at 31, '31’ of Fig.‘ 10. Centrally ' munication with an elongated passageway 19 mounted on vertical pins 39 carried in ears 40. which extends'into the space within ether jar 80 25 on casing 34 are rods 4| . 42, Figs. 2 and‘ 5, which and has secured thereabout a removable» tube 8| 25 for swinging movement in a‘ horizontal plane.‘ These respective rods extend through tubular 30 passageways 43 and 44',’ Figs. 2, 5 and 10, which extend‘ across the bodies of the soda lime contain held between top and bottom plates 84 and 85, as shown in Fig. 7. The chamber ‘H is provided 30 are positioned midway betweenv bosses 31, 38 and opening through a slot 82 to the interior of a 31', 38' respectively, and which are thus adapted cylindrical vaporizer 83‘ carried by member 8| ers 35 and 36 and are sealed from the interiors thereof; The containers“ 35 'and' 36, as clearly shown in Fig. 5, embody upper and lower cylin-L 35 drical apertured members 45 and 46," respectively, which are formed with annular ‘seats'provided with gaskets 41 and“. The swingingpinsl4-l and 42 have threaded ends 49 adapted to extend outside of the bodies of containers 35"and 36. 40; Upon these threaded ends 49 are screwed knurled thumb nuts 50, 5|. ‘ By these meansv the. con and-formed with a multiplicity of vertical cords with a port 86 through its bottom and into the space within ether container 80. Valves 81 and 88 are adapted to engage valve ‘seats at the upper edges of passageways 86 and 19 to shut these pas sageways when ether is'not desired. A second 35 valve 89 is secured to the same stem as valve 88 andrisi adapted vto engage a valve seat sur-. rounding‘ opening .18 to cut off all direct ?ow of gas from port 10 to port 12 ‘and cause all gas to‘ pass through the ether vaporizer ‘when that is 40 desired.- These valves are controlled by the ro tainers35 and 36 are’securely' held locked in- gas-: tary member” to which is secured a handle 9| ing 34. 89*are operated. With these‘ valves so operated all of the exhalation gas may go directly without 45 tight relation to the tubular bosses 131.38 of cas-l by means of which the valve members, 81, 88 and ' Extending through valve'chamber 33-v withinl casing 34 is a valve-stein 52 upon which ‘are mounted to rotate therewith upper and 'lower cup valves 53 and 54. The cup valve' 53 'is formed with an open top and a'bottom- wall 55' 50 which is imperforate except for a segment port‘ 56 and which bottom rests on a partition 51 having a segment port 58~of the same shape and extent as the segment port 56 in cup valve 53. The cup valve 541s also open at the top‘ and 55 has ‘an imperforate bottom wall 59. As clearly shown in Fig. 10,'the valve cup 53 is provided with an upper circular port 60 adapted‘to regis terpartly with one or the other of the openings in tubular bosses 31 and 31’ or with both of them 60 in greater or less relative proportions. As shown in Figs. 3 and 5, the bottom cup valve 54 is simi larly provided with a circular port 6| which may open to either of lower tubular bosses 38 or 38' or to both at the same time ‘in desired relative 65 proportions. The openings or ports 60 and 6| are in alinement so that the degree of opening of each into containers 35 or 36, or'both of them, will be in the same proportional amount. The containers 35 and 36 are provided with screens 63 over the respective seat rings 45,- ‘and also with screens'64 across the bottoms~ofthe con tainers above the cylindrical contact members and openings 46, and are also provided with screw passing into the ether vaporizer at all or all of the'gases may go through the ether vaporizer or part'of said exhalation gases may go directly and part ‘go through the ether vaporizer. In passing through the ether vaporizer some pres 50 sure‘ will be ‘exercised upon the ?exible cords forming the vaporizer member 83 tending to push‘those cords together and form not only a vaporizer member, but an excellent strainer member to eliminate any dust or other extrane ous matter which may come through from the absorber material in the containers 35 and 36 through which, where absorption is employed, the exhalation gases must pass ?rst before going to the ether vaporizer. The speci?c arrange ment of control of gases in the ether vaporizer and, of the vaporizing member are not claimed in this application, but form the subject-matter of my'copending applications Serial Numbers 37,499 and 59,578.' By means of a handle 92 on 65 vertical shaft 52 and pointers 93, 94 movable therewith and vcooperating with a scale 95, Fig. 1; the valve members 53, 54 may be properly ad ju'sted to deliver the exhaled gases either directly to the ether vaporizer or' (the usual manner of 70 operation), ?rst, through one or the other, or fractionally through both simultaneously of ab sorber containers 35, 36. The ether in su?icient quantitiesis readily introduced into the con _ tainer jar- »86 through a ?ller funnel 96, Fig. 8, 75 and closed.“ It follows that either of the‘contaim 75 caps 65 by which the containers may befopened 3 2, 104,988 opening through an aperture 91, Fig.‘ 2, into the chamber ‘ll. ' The advantages of my invention will be ap parent from the foregoing description thereof. The containers for absorber material such as soda lime are connected in'the system by simple and ef?cient means which provide for instant and easy removal of either container. while the other con tainer is being ?lled, so that the operation of 10' ?lling or renewing one container may go on while the apparatus is in use. Always, where the ab sorber material is used, the exhaled gases will pass through the absorber material before going to the ether vaporizer, with the result that water 15 carried in the exhaled gases which might be con densed in the ether vaporizer will be taken out before such exhaled gases reach the ether vapor izer and dilution of the ether therein will be '20 avoided. I claim: ‘ ' 1. In an anesthetizing machine embodying a closed breathing line and a pair of containers of absorber material, a vertical passageway in said breathing line including valve mechanism to cause 25 the exhaled gases to pass through one or the other or simultaneously through both of said containers, a second vertical passageway having an inhale check valve at one end and a rebreath ing bag at the other, and an ether vaporizer in 30 said breathing line connected with both said ver tical passageways, whereby exhale gases will pass to the rebreathing bag on the inhale side of the breathing line through one or both of said con tainers ?rst and thereafter through the ether vaporizer. 2. In an anesthetizing machine embodying a closed breathing line, a vertical valve chamber in the exhale side of said line having upper and lower openings thereinto provided with surround 40 ing circular seats, a container for'absorber mate rial having'similar and similarly-positioned open ings and seats, and means for removably clamp ing the seats of the container to the seats of the valve chamber to make a gas-tight union of the 45 container with said valve chamber. 3. In an anesthetizing machine embodying a closed breathing line, a vertical valve chamber in the exhale side of said line having upper and lower openings thereinto provided with surround 50 ing circular seats, a container for absorber mate rial having similar and similarly-positioned open ings and seats, a swinging pin connected with the valve chamber, a passageway through the con tainer adapted to receive said pin, and remov 55 able means on said pin for clamping the seats of the container to the seats of the valve chamber to make a gas-tight union of the container with said valve chamber. 4. In an anesthetizing machine embodying a closed breathing line, a vertical valve chamber on the exhale side of said line having a plurality of similarly-positioned upper and lower openings thereinto each provided with surrounding circular seats, a corresponding number of containers for absorber material having similar and similarly positioned openings and seats, and means for re movably clamping the seats of each container to the sets of seats to the valve chamber to make 10 gas-tight union of the containers with said valve chamber. 5. In an anesthetizing machine embodying a closed breathing line, a vertical valve chamber in the exhale side of said line having upper and 15 lower openings thereinto provided with surround ing circular seats, a container for absorber mate rial having similar and similarly-positioned open ings and seats, means for removably clamping the seats of the container to the seats of the valve 20 chamber to make a gas-tight union of the con tainer with said valve chamber, and valve means in the valve chamber for controlling ?ow of ex haled gases through said openings and the ab 25 sorber material in the container. 6. In an anesthetizing machine emboding a closed breathing line, a vertical valve chamber on the exhale side of said line having a plurality of similarly-positioned upper and lower openings thereinto each provided with surrounding circu 30 lar seats, a corresponding number of containers for absorber material having similar and simi larly-positioned openings and seats, means for re movably clamping the seats of each container to the sets of seats to the valve chamber to make gas-tight union of the containers with said valve chamber, and means in the valve chamber for controlling ?ow of exhaled gases through either or both said sets of openings and the absorber material in either or both said containers. '7. In an anesthetizing machine embodying a closed breathing line and a container of absorber material, a vertical passageway in said breathing line including valve mechanism to cause the ex haled gases to pass through said container, to go 45 directly past said containen'or to pass partly through said container and go partly directly, a second vertical passageway having an inhale check valve at one- end and a rebreathing bag at the other, and an ether vaporizer in said breath 50 ing line connected with both said vertical pas sageways whereby exhaled gases will pass to the rebreathing bag on the inhale side of the breath ing line all or part through said container ?rst and thereafter through the ether vaporizer. JAY A. HEIDBRJNK.