US1346127A - Combined blood-transfusion and aspirating apparatus - Google Patents

Description

M. L. JANES.

COMBINED BLOOD TRANSFUSION AND ASPIRATING APPARATUS.

APPLICATION FILED MAR. 20, 1920.

Patented July 13, 1920.

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COMBINED BLOOD TRANSFUSION AND ASPIRATING APPARATUS.

APPLICATION FILED MAFLZO, 1920.

Patented July 1.3, 192%.

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PrNoF i MARTIN LEWIS JANES, or nn w ro, n. Y.

COMBINED BLOOD-TRANSFUSION AND ASFIRATING APPARATUS.

Specification of Letters Patent. Patented J 11 13, 192m Application filed March 20, 1920. Serial No. 367,357.

To all whom it may concern:

Be it known that I, MARTIN L. JANES, a citizen of the United States, and resident of the boron h of Bronx, county of Bronx, and city and tate of New York, have invented certain new and useful Improvements in Combined Blood-Transfusion and Aspirating Apparatus, of which the following is a specification. i

This invention relates to improvements in blood transfusing apparatus.

The invention has. for one of its objects the provision of a multiple cylinder pumping apparatus so constructed as toprovide a continuous flow of blood from the donor to the receiving patient and prevent accidental back-flow of the blood.

Another object of the invention is toprovide means for supporting and operating opposed pumping devices adjustable tocooperate with pumps of different lengthsand to vary the length of stroke of the pump pistons.

A further object of the invention is to provide a multiple cylinder pumping apparatus, and means for supporting the pump .cylinders and actuating the ump pistons,

so constructed that each pump cylinder and its associated piston may be, quickly and easily disconnected independently of the other cylinder and piston. 7 v T Still another object of the invention is to provide an apparatus of the class set forth having parts collapsible to reduce the dimensions of the apparatus.

In the drawings: Figure 1 is a top planview of the apparatus showing the piston operating means locked against reverse movement at the con-, clusion of the discharge stroke of one'piston and the suction stroke of the other lston; Fig.2 a detail view, partly in horizontal section, showing the intake and discharge governing valves and the conduits governed thereby, the valves being in the position shown in Fig. 1; l

. Fig. 3 a view similar to Fig. 2 showing the valves ad'usted "for movement of the pump pistons 1n the opposite direction;

Fi 4 a transverse sectionon the line 44 s of Fig.1, the valves being adjusted to the positions shown in Figs. 1 and 2;

1 and has a thumb nut 9 threaded held to the bed member I "manner and may be cast integrally there'- Fig. 5 a viewsimilar to Fig. 4, the valves being adjusted to the positions shown in of one-of the adbed memberhaving depending side flanges or ribs2 and depending end flanges or ribs 3. Two ribes or flanges 4: extendbetween of the apparatus,

the ribs 2 adjacent opposite endsof the plate 1 parallel with the ribs 3, and said ribs 3- and-l are formed with; registering horizontal slots or guide ways 5 and 6, respectively, 1n which extensible end plates 7 forming extensions of the bed 1 are slidably mounted. Eachplate 7 is adapted'to be locked in I its adjusted position by a suitable clamping screw-8 which extends through the bed plate upper end. Each plate 7 is provided at its outerend with a suitable lmob 10 to facilitate" adjustment thereof, and is provided at its inner end with a stop screw or projection l1 adapted to engage rib 4 to limitthe outward movement of the plate.

Two oppositely facing glass syringe barfels 12, preferably provided with graduations (as shown) to indicate the capacity thereof, are removably supported on two on its pairs of saddles13. -The saddles are rigidly 1 in any suitable with if desired. Each saddle or upright support 13' is formed with a concave seat or recess 14 in its upper end to receive a syringe barrel, and said saddles are arranged in alinementlongitudinally of the member 1, two of the saddles being located at each side of the center of-the'bed member 1. Solid glass pl'ungers or pistonslfi are mounted in the syringe barrels 12, each of, said plun gers being formed with a head 16 at its outer end connected with the main body portion of the plunger by a reduced shank or'neck portion 17. Each syringe barrel -12 is provided at its inner end with the usual nozzle 18 to which a metal nipple 19 is frictionally held at one end. K

A standard 20, rigidly held to the base plate 1 centrally of said plate, supports a tubular member 21 which extends transversely' of the plate 1 midway between the inner ends of the syringe barrels 12. The

tubular member 21 is provided with .two oppositelyextending nipples 22 and 23 midway its ends in alinement with the nipples 19 on thegnozzles of the syringe barrels. Nipple 22 is connected with one of the nipples 19 by a short length of flexible rubber tubing 24, and the nipple 23 is connected with the other nipple 19 by a similar flexible tube or conduit 24. The nipple 22 is provided with a passage or conduit 26 which.

connects with a conduit 27 extending longitudinally through the tubular member 21,

and nipple 23 is provided with a passage 28 which is connected with a passage 29 extending longitudinally through member 21.

An intake valve and an outlet or discharge valve are supported at opposite ends of the member 21, said valves being common to both syringes or pumps. The casing 30 of the intake valve has a nipple 31 provided with a passage 32 communicating with the l valve chamber. and said casingis formed with a threaded tubular extension 33 provided with two passages 34 and 35 connecting the valve chamber with the adj acentends of thepassages 27 and 29, respectively,

in member 21. A plug valve 36 is rotatably mounted in the valve chamber of casing 30 and is provided with a port or passage 37 extending therethrough which is widened or enlarged'at one end, as shown, so that said intake valve-36 may be rotated to connect passages 34 and 35 alternatel with intake passage 32 through port 37 he valve casing 30 is held to member 21 by a sleeve 38 threaded on. extension 33 of the'valve casing andhaving a flange or shoulder adapted to abut against a circumferential flange or shoulder on the end of member 21. Any

, other suitable form of coupling may be provided if desired. The opposite ends of pass age's 27 and 29-comrnunicate with passages '39" and 40, respectively, formed in an externall threaded tubulamelxtension 41 on the" .disc arg'e valve casing-42., This valve casing is connected to member 21 by] a threaded sleeve 43, in the same manner as the 'intake vajlitej. To insure registratidinof the passages'in the extensions of the valve casings with the passages 27 and 29, the member 21'- is provided with a sockethn each end there;

of in which a stud or pin 45 on the end of h the extension of'th'evalve casing 'is' adapted to seat, asshown in Fig.4. The valve cas aerate? ing 42 is provided with a nipple 46 having a discharge passage 47 therethrough with which passages 27 and 29 may be alternately connectedby a port 48 in the discharge valve 49. The plug valve 49 is rotatable in the caslng 42 and the port 48 is-enlarged at one 47 when the other end of the port is con- 'end, as sh0wn, so as to'register withpassage nected with either of the passages 27 or 29.

The extent of rotary movement of the valve plugs 36 and 49 is limited by the usual pinand-slot device, as shown in Figs. 4 and 5.

Two flexible conduits, such as rubber tubes and 46, respectively, and said tubes are provlded with the usual tapered nipples or'nozzles 52 at their free ends to which the usual 50 and 51, are connected to the nipples 31 I needles 53, which are inserted inthe veins of the donor and receiving patient, are frictionally connected in the usual manner.

The opposed plungers 15 are connected by a reciprocable frame, comprising side rods 54 and end bars 55, to cause said plungers to move in unison in the same direction relatively to "the base plate to thereby impart a suction stroke to one plunger during the discharge stroke of the other plunger. The syringes are removably held down in the saddles 13 by adjustable and detachable clamps 56 having hook portions engaging over the syringe plungers and engaging against the flanged outer ends of the syringe barrels. Each clamp rests at its lower end.-

on the base plate 1 to prevent rocking of the clam and each clamp is provided with an arm 5 having a'horizontal slot 58 therein open at one end. A clamping screw 59 extends through slot 58 and is threaded into the adjacentsaddle '13. It will be obvious justabl held to the reciprocating frame to move 1; erewith. The carriages are slidable along the rods 54 of the frame and maybe adjusted toward and from the end bars 55 by means of screws 62. Screws 62 arethreaded through the carriages and are rotatably supported in the end bars 55, being held against endwise movement relatively to the end bars by screws 63 which engage in circumferential grooves. 64 in thescrews 62,

as shown in'Fig 9. Theplungers' 15 are removably connected lat their -outef ends- 1 with the carriages 60 to move in unison with the frame and carriages and to permit ad-- justment 'of the plungers relatively to each other and to the pumplbarrelsby adjusting the carriages along t e frame. Each carriage is provided with afixed upwardly ex-' horizontal flange 67 provided with elongated slots through which screws 68 extend for adjustably holding the yoke to the carriage. I

In order to prevent reversal of the direction of movementof the plunger-connecting frame without first reversing the adjustment of the intake and discharge valves, means is provided, for automatically locking the frame against reversal until the valves are properly adjusted. For-this purpose the stems or handles 69 of the two plug valves are connected with a substantially U-shaped link or operating yoke 71 by pivot screws 70. The lower transverse member of link 71 extends under one of the tubes 24 and above the side rods 54 of the plunger-connecting frame. A gravity pawl 7 2, having rounded ends, is suspended from the transverse member of link 71 centrally of said member and is held against rotation by the; walls of a vertical slot in a boss 73 formed on the under side of the link. When the yoke is shifted to adjust the valves to the position shown in Fig. 2, the pawl rests on one of the rods 54 and when the valves are adjusted, as shown in Fig. 3, the pawl rests on the opposite rod 54. The rounded ends of the pawl permit the pawl to ride up on the rods when shifted endwise. l The rods 54: are provided with sets of oppositely facing ratchet teeth 74 and 75 with which the gravity pawl 72 is adapted to engage so as to permit movement of the frame in one direction only when the pawl overlies either bar. It will thus be observed that after the frame is shifted in one direction, movement thereof and of the pump plungers cannot be reversed without shifting the link 71 to reverse the adjustment of the valves.

All of the parts except the rubber tubes and the syringe plungers and barrels are preferably made of metal and nickel-plated."

While I prefer to employ ordinary glass syringes as pumps, it will be obvious that other forms of pumps may be employed.

With the mechanism above described it will be seenthata continuous flow of blood from the donor to the receiving patient may be obtained and that accidental back-flow of the blood is impossible. It will also be observed that the length of the apparatus may be reduced by sliding plates 7 inwardly, this being advantageous in packing the apparatus for shipment and also permitting sterilization of the apparatus in a tank of minimum size.

The apparatus may be used for other purposes besides the transfusion of blood, such as aspirating or pumping various fluids or pus from cavities or passages in the body.

What I claim is:

1. An apparatus of the class set forth comprising a support, a pair of syringes mounted on the support, means connecting the plungers of said syringes for simultaneous movement in opposite directions relatively to the syringe barrels, a member mounted on the support having two passages therethrough, means connecting each of said passages intermediate its ends with one syringe barrel, a pair of valve casings held to said member, and a pair of valve plugs rotatable in said valve casings each having a passage therethrough adapted to connect either of the'passages through the member with a single passage through its valve casing.

2. An apparatus of the class set forth with a single passage through its valve casing, and means for simultaneously rotating the valve plugs to place the passage through ,one plug in communication with one passage through the member and the passage through the other plug in communication with the other passage through the member.

3. Tn an apparatus of the class set forth, the combination of a pair of syringes, means connecting the plungers of said syringes to cause one of said plungers to move on its suction stroke while the other plunger moves on its ejecting stroke, an intake valve casing having an intake port, an outlet valve casing having an outlet port, means forming independent conduits each of which is in communication with the barrel of one syringe and both valve casings, valves in said casings, and means for operating said valves in unison to simultaneously connect one of said conduits with the intake port in the intake valve casing and the other conduit with the outlet port in the outlet yalve casing.

v4. Tn an apparatus of the class set forth, the combination of a pair of syringes, means connecting the plungers of said syringes to cause one of said plungers to move on its suction stroke while the other plunger moves on its ejecting stroke, an intake valve casing having an intake port, an outlet valve casing having an outlet port, means forming independent conduits each of which is in communication with the barrelof one syringe and both valve casings, valves in said casings, means for operating said valves 1n unison to simultaneously connect one of said conduits with the intake port in the intake valve casing and the other conduit with the outlet port in the outlet valve casing, and means for automatically locking the syringe plungers against reverse movement at the end of each stroke thereof.

5. In an apparatus of the class set forth, the combination of a pair of syringes, means connecting the plungers of said syringes to cause one of said plungers to move on its suction stroke while the other plunger moves on its ejecting stroke, an intake .valve casing having an intake port, an outlet valve casing having an outlet port, means forming independent conduits each of which is in communication with the barrel of one syringe and both valve casings, valves in said casings, means for operating said valves in unison to simultaneously connect one of said conduits with the intake port in the intake valve casing and the other conduit with the outlet port in the outlet valve casing, and cooperating means movable with the plunger-connecting means and valve-operating means for locking the plungers against re-/ verse movement until the valve-operating means is operated to reverse the positions of the valves.

6. In an apparatus of the class set forth, the combination of a pair of syringes, means connecting the plungers of said syringes to cause one of said plungers to move on its suction stroke While the other plunger moves on its ejecting stroke, an intake valve casing having an intake port, an outlet valve casing having an outlet port, means forming independent conduits each of which is in communication with the barrel of one syringe and both valve casings, valves in said casings, means for operating said valves in unison to simultaneously connect one of said conduits with the intake port in the intake valve casing and the other conduit with the outlet port in the outlet valve casing, and a pawl movable with the valve-operating means into cooperative relation with first one and then the other of two series of oppositely facing ratchet teeth on the plunger-connecting means.

7. In an apparatus of the class set forth, the combination of a support, two syringebarrel cradles mounted on'said support, a pair of oppositely facing syringe barrels mounted in said cradles, a pair of oppositely facing plungers reciprocable in said barrels, a frame slidably supported by said cradles to move longitudinally of the syringe barrels, means connecting the plungers with said sliding frame, and means mounted on the support for connecting each syringe barrel with an intake conduit during the suction stroke of the plunger therein and with a discharge conduit during the ejecting stroke of the plunger.

8. In an apparatus of the class set forth, the combination of a support, two syringebarrel cradles mounted on said support, a pair of oppositely facing syringe barrels mounted in said cradles, a pair of oppositely facing plungers reciprocable in said said barrels, a frame slidably supported by said cradles tomove longitudinally of the syringe barrels, means connecting the plungers with said sliding frame, means on the support formed with an intake opening and a discharge opening and two independent conduits each of which is in communication with both of said openings, means connecting each syringe barrel with one of said conduits, a valve operable to alternately close Jcommunioation between said conduits and the intake opening, and a; valve operable to alternately close commu-' nication between said conduits and said discharge opening.

9. In an apparatus of the class set forth,

the combination of a support,two syringe barrel cradles mounted on said support, a.

pair of oppositely facing syringe barrels mounted in, said cradles, a pair of oppositely facing plungers reciprocable in said barrels, a frame slidably supported by said cradles to move longitudinally of the syringe barrels, means connecting the plungers with said sliding frame, a flexible intake conduit, a flexible discharge conduit, means on the support forming connections between each syringe barrel and both of said conduits, and valve means for closing communication between the intake conduit and the syringe barrels during the ejection strokes of the plungers and between the discharge conduit and said barrels during the suction strokes of the plungers.

10. In an apparatus of the class set forth, the combination of a support, a pair of oppositely facing syringe barrels mounted on the support, plungers reciprocable in said barrels, a frame slidably mounted on the support to move longitudinally of the syringe barrels, devices movable with the frame for connecting the plungers with the frame to slide therewith, means for ads.

justing said plunger-connecting devices independently longitudinally of the frame,

and means for connecting the syringe barrels with the veins of the donor and receiver of blood. I

11. In an apparatus of the class set forth, the combination of a support, a pair of oppositely facing pump barrels mounted on' v with on said support, means for adjusting said carriages longitudinally of the frame, means carried by each of said carriages for connecting one of said plungers therewith, and means for connecting the pump barrels with the arteries of the donor and receiver of blood.

12. In an apparatus of the class set forth, the combination of a support, a pair of oppositely facing pump barrels mounted on the support, plungers reciprocable in said barrels, a frame shiftable longitudinally of the pump barrels, a pair of roller carriages connected with said frame to move therewith on said support, means for adjusting said carriages longitudinally of the frame, means carried by each of said carriages for connecting one of said plungers therewith, and a pair of clamping members adjustably and detachably held to the support for holding the pump barrels to the support.

13. In an apparatus of the class set forth, the combination of a support, cradles mounted on the support, a pair of pumps restingin said cradles having reciprocating pistons, means for removably holding the pumps in said cradles, an intake valve and an outlet valve common to both pumps, reciprocable means connecting the pump pistons operable to cause one piston to make a suction stroke while the other piston makes an ejecting stroke, and means for simultaneously operating said valves.

14. In an apparatus of the class set forth, the combination of a support, cradles mounted on the support, a pair of pumps resting in said cradles having reciprocating pistons, means for removably holding the pumps in said cradles, an intake valve and an outlet valve common to both pumps, reciprocable means connecting the pump pistons operable to cause one piston to make a suction stroke while the other piston makes an ejecting stroke, reciprocable means connecting said valves shiftable transversely of the pump-piston operating means for simultaneously operating the valves, and cooperating means carried by the piston-operating means and valve-operating means for looking the piston-operating means against reverse movement at each limit of its reciprocatory movement.

1 15. In an apparatus of the class set forth, the combination of a support having extensible end portions, cradles on said support, a pair of opposed pumps supported in said cradles having reciprocating pistons, a pair of valves common to both pumps for governing the flow of liquid to and from the pumps, means connecting said valves for simultaneous operation, a frame slidably guided in said cradles for actuating the pump pistons, roller carriages connected with said frame and traveling on the extensible end portions of the support, and means on said carriages for connecting the pump pistons therewith.

In testimony whereof I hereunto afiix my signature.

MARTIN LEWIS J ANES.

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