US1850132A - Surgical instrument - Google Patents

Surgical instrument Download PDF

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US1850132A
US1850132A US405459A US40545929A US1850132A US 1850132 A US1850132 A US 1850132A US 405459 A US405459 A US 405459A US 40545929 A US40545929 A US 40545929A US 1850132 A US1850132 A US 1850132A
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valve
suction
handle
liquid
inlet
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William E Morse
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/60Containers for suction drainage, adapted to be used with an external suction source
    • A61M1/63Containers for suction drainage, adapted to be used with an external suction source with means for emptying the suction container, e.g. by interrupting suction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/02Blood transfusion apparatus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64Containers with integrated suction means
    • A61M1/67Containers incorporating a piston-type member to create suction, e.g. syringes

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Description

March w E MORSE SURGICAL INSTRUMENT INVENTOR' VL EMORaa F ATTORNEYS Filed Nov. '7, 1929 hw l/wn M N M Patented 'Mar. 22; 1932 ismmemsmm Application ovexlnher My invention relates to improyenients in surgical instruments, and it consists in the V combinations, constructions, and arrangements herein described and elaimed; v c
An object of my invention is to provide -a surgical instrument -'-olf the type employed for making blood transiiusions in whie'h novel l p that :the sleeves 1 8 am disposed. upon the means is provided m herebythe blood is caused to passin aeon-tinuous streamfrom theldonor 4 Jito the recipient. I i 7 is A further object is-to provide a de nieeiof the :t-ype desc-ribediin w h'i'oh means 1s provided' wherehy a maximum amount Iof' blood may =:be transferred "within a' minimum amount'o'i time 'and'in which ltheicooperating parts are solar-ranged rthat theadevice may be easily and quickly disassembled for cleaning, repairing, and :the like.
Qther objects and advantages :Wi l'l appear 7 in the following specifioation andithe novel features of the invention will the p'artlcue larly pointed outzinithe appendediolaims.
- My invention is i llustrated in the -a ceon-1- panying drawings, forming part Oifi-lllilS ap plicatiominwhich :Eigu-re "1 :iszasi my device. a I I Figure 2 is aatop zplan =;v1erv,1part'1y an section, oimy invention,
F-i gure 8 :is alsectlonaliview taken along 'theline 33lof'l igure 2, r 1 v V 18W taken along W :lti'gure 4 is a Sectionals the line A..:4c of "Eig'ure :5, and
Figure 5 is -.'a-rtop'e plan' 'vlewiof a :portion o'fione ofithewalves.
:In carrying-out any invention, make. use of -.a :hase plate 11 cuponawhich u prightislipporting members =2, 3, :4, :and15 a are mounted,
' The imembers 2,3,1and.c24areaprefenably fixed support 5. flhegmembers 2 and5are re upon the base by any @sui-tablemeanazsuch asweldi-ngorsloolting, The memberflfi 15 provided with ;a2base yportion' fihaving a slot '7 therein. 'iliheiisupportili may;; bevad-i justed :and rigidly Msedure'd iuponit-he base plate ilibywme ans of thumb screw :8. :Ehe
latter is disposed =u-ponwa threadedshank associated with; a lug 10 which islfi'xedupon the base plate *1." The kluge' lO, as will be seen Ffiro'm Figu-re 2, -acts I as a guide 'for de elevationiofiaiportionwof cesse'd at i=1 and 12: The -tmenihers' 3 and l are provided with recesses :13 and 1140011 1 forming to the diameter of tubular projections 15 associated withca'ps'lfi'and -17. Eaeh p of the caps is providedwith a threaded sleeve ends of ' harrels 19 and 20. The caps h-ave threaded relation with respect to the sleeves and may he removed therei rom. The sleeves are ifixe'd upon the ends o-Qfithe barrels -1 9 and 20. The latter are preferablygiormed from glassoriother suitable transparent ma: terial. The opposite ends of the barrels-are provided with caps; 21 and -22. Each of the barrels is provided with-a filler pgrtipnflg. The reaps '21 and 22 support the. outer ends ofithe barrels :19 and Within therecesses 1 1 and :12, respectively. The tubular {Inga-11+ hers l5 support the opposite endsof the-ban rels upon the;su=ppoiting members '3 and 4. [*The "barrels 19 and :20 are provided -Wi-th plun-gers v 24 and 25, respectively. The
plunger -24 is fixed upon the-end of a tubu'lar plunger rod 26. The opposite end of the plunger-rod is fixed witliinan opening {27 in V a valvebody 28., 'flghe valve'tbody-is provided with an opening :29 which {is diametriea'll-y opposed to the opening 27 for receiving ene end of la plunger rod 30. {The end of the plunger rod'30 is rigidly secured Within the opening 29. The openings in' the tubular projections 15 areslig-htl'y larger than the diameters of the plunger rods 26 and F30 for permitting air to readilypasls into and out of" thefiabarre'ls 19 and 20 during the movement oithe:plungerstherein. v
- The valve body 28 is provided-wvijzfh a-pair of diametrically-opposed openings31 arid-32. f 'Within which connecting members 33-angl 34,
respectively,are-disposed. An-inlet-=tube 35 I is associated with the {conneeting member 533' and an outlettube 36 is flSSoeiated with the connecting memherBri. The inletltube is prof i ided wane valve sTlhaving' conneting members 3 8fiand 39. A tube .10 is disposed I p n nH P ga emberBS anaa u be-ai iYdiSpos'edfipOn'lthe mber 39; Theitl b in} 40 is -provided with' a hollow needle I42;
Hollow needles such as this are well known in the art and theretorerequire no detailed description. The valve 37 is provided witha handle 43 whereby the valve may be manipulated for placing the tube in communication with the tube 35 01' the latter with the tube 41. The purpose of this construction will bedefined more fully later.
In Figure 2 I have also shown the tube 36 l as being provided with a valve 44. This valve is provlded with connecting members 45 and 46 for receiving tubes 47 and 48, re,
Spectively. The tube 47 is provided with a hollow needle 49. The tube 36 may be placed in communication with the tube 47 or" the tube 48 by manipulating the handle 50 associated with the valve 44., The base plate 1 is provided with a pair of guide members .51 and 52 between which the lower end of the valve body 28 is disposed.
Referring now to Figure 4, it will be noted that the valve body isprovided with a rotatable member 53 having grooves 54 and 55 therein. The inner end of the member 53 is provided with an opening within which a threaded shank 56 associated with a disc 57 is disposed. The inner end of the member 53 is also provided with a rectangular proj ection 58 which is preferably disposedwith in a similar opening in a washer 59. The disc 57 is provided with a plurality of openings between which ball bearings 60 are placed. It will thus be seen that the washer From the foregoing description of the various parts of the device, the operation thereof may be readily understood. Y Preparatory. to making a blood transfusion, let us say that the needle 42 is inserted into a vein in the body of the donor and that the needle 49 is similarly insertedinto a vein in the body ofthe recipient. At this time the valves 37 and 44 are arranged in the positions shown in full lines. Let us assume that the handle 62 is positioned for operation upon the side of the device shown in Figure 5. In operation, the handle is grasped and moved, let us say, from right to lettas viewed in Figure 5, at which time the member 53 will be moved sufficiently far to bring the groove 54 into a position for placing the tube 35 and the plunger rod 26 into "communication. The valve body 28 is provided with a recess'64 whereby a pin-65 which is secured to the member 53 will engage a shoulder 66 or 67 for limiting the distance through which the member 53 is rotated.
When the handle is moved from right to left, the first result is a rotation of the member 53, after which the member 53 is locked against rotation, and continued pressure from right to left upon the handle will cause a movement of the plungers 24 and 25. Such movement will cause blood to flow into the barrel 19 by reason oi the suction created therein. When the. plungers have been moved their entire distance, the handle 62 is moved from left to right, which results in the, member 53'being moved for placing the grooves 54 and 55 in a position shown in Figure 2. Thus it will be seen that the blood within the barrel 19 will be forcedtherefrom into the tube 36 and finally through the needle 49. Simultaneously, the. barrel 20 will be filled with blood which, upon reversing the movement of the plungers, will be forced 'through the tube 36 and the needle 49. By
reason of this construction I have provided a device in whichthe blood to the recipient is caused to flow continuously.
@I .have foundthat one of the greatest obstacles to .making successful blood transfw sions is the coagulation of the blood due to inactivity of the latter during certain stages of the transfusion, Frequently, it becomes necessary to pass a certain amount of solution such as saline to, let us say, the recipient. At this time the valve 37 is moved for bringing the handle from. the full line position to the dcttedline position. This will place the tube 41 in communication with the tube 35 and will cut off the communication between the tube40 and the tube 35. A continued reciprocation of the plungers will cause saline to flow to the recipient. The tube 41 maybe inserted in any suitable receptacle containing saline.
' A further important feature in connect-ion with my invention is the fact that the handle 62 may be reversed. In'other words, it may be operated from both sides of the device; When the handle is manipulated from the lower side shown in Figures 2 and 5, the
direction of flow will be reversed. In many cases it is desirable to pass saline to the donor. Under such conditions, the valve 44 is manipulateclfor placing the tube 48 in communication with the tube 36. Continued manipulation of the handle will cause a flow of the liquid to the donor.
The device may be easily and quickly disassembled by merely loosening the thumb screw8 and moving the member 5 slightly away from the barrel 20. At this time both barrels may be lifted from their supporting members and, by unscrewing the caps 16 and 17, the plungers may be pulled from the barrels. The handle 62 serves a double function in that it reverses the member 53 and at the same time serves as .a grasping element be rigidlysecured upon.
for re iprocating the 1ungers. The guides 51. and shown in figure. 2; ar arranged for perm tting. lamps to engage the base plate latPAaud B, whereby the-base may any suitable, sup.- porting structure I claim:
1. A surgical instrument comprising a pair of hollow members. having plunger means movably disposed therein, said. plunger means being provided With a Valve'and passagewayscommunicating with the valve and said hollow members, inlet and, outlet liquidconveying means communicating with saidvalve, said plunger means being arranged to create a suction within one of said hollow members whereby liquid 7 will be caused to flow; therein, said plunger beingfurther ranged to. cause a compression within the other of said tubular members forcausing liquid therein to flow therefrom and. into said outlet liquid-conveying"means, said valve being arranged to place oneof the hollow members in communication with the inlet liquidconveying means when movedinone direcion and the other of the hollow members in communication withthe outlet liquid-convey: ing means, said valvebemg further-"arranged to reverse the communication between the inlet and outlet liquid-conveying means when.
means being provided with avalve and passageways communicating with the valve and said hollow members, inlet and outlet liquidconveyin-g meanscommunicatmg with said valve, said plunger: means being arranged to create asuctionlwithin one of said hollow members whereby liquid. will. be caused to flow therein, said plunger being further ar-' ranged to cause a'compression within the other ofsaid tubular-,members forlcausing liquid therein to flow therefrom andlnto. said outlet liquid-conveying means, saidgv'alve be ing arranged to place one: of; the hollow" members. in communication;with the inlet, liquidconveying means whenamoved in one direction and the other of the hollow members' in communicationwith thenoutlet liquid-com .veying means, said valve beingifurther ar-' ranged to reverse the communication between the inlet and outletv liquid-conveying: means when said plunger means isnioved in an oppositedirection, a supporting ,member, and means mounted .upon the latter for detacha bly supporting said: hollow :members, said pl ger means having a portion engaging the base for guiding the plunger means.
3. A. surgical,mstrument. comprising, a
' supporting structure, ai valve having a n inletopeningand an outletopenin'g', conduit" means. connected withgthe valve and. communicatingwith said inlet and outlet; open- I with the supporting'structure andpthe other.
operatively connected with the valve. and communicating with the same, one of thegela mentsm eachof the suction-compression devices being movable relatively with-respect to its companion element, said valve being.
-movable for operating said suction-comprese sion devices for causing a continuous flow of a liquid through the valve in a predetermined direction, said handle assuming positions during the movement of the valve for indicating the direction of flow of the liquid 'throughsaid valve, said handle being reversi-- ble for causing the liquid to flow in an opposite direction through the valve when. manipulatedin a shifted position,
4. A, surgical; instrument comprising" a,
supporting structure, a valve havingan inlet opening and an "outlet opening, conduit means connected with the valve and com muni'catingwith said inlet and outlet openmgs, said valve comprising in part a mov able member. having-a 'shifztable handle and recesses, and a pair of. suction-compression,
' devices mounted'upon the supporting structure, each of said suction-compression. devlces compnsmg'apair of elements, one connectedwith the supportlng structure and the other operatively'connected with the valve and: communicating with the same, one of the elements in each of thesuctlon-compression devices being movable relatively wlth.
respect to its companion element, said'valve' being movable for operating said suctioncompression devices for causing a continu.--
ous flow of a liquid through the valve'ina;
predetermined direction, said handle assuming positions during the movement. of the valve for indicating the direction of flow of.
the liquid through said valve, said handle being reversible for causing the liquid toifiow in an opposite direction through they valve when manipulated'in a shifted position, said handle being shiftable for reversing the action of the valve whereby the direction of flow is reversed.
5. A surgical instrument comprising 'a' suporting structure, a valve having an inlet opening and an outlet opening, said valve comprising in part. a. plug having a pairof recesses and a shiftable handle, saidavalve being provided with feed openings, a pair, of suction compressionv devices, and. conduits connected; with the valve and communicating with the outlet and inlet; openings, said con-1;
duits ing provided f with needle: meansior rrs ISO
connection with a donor and a recipient, each of said si1ct1on-compress1on devices valve in one direction, said recesses being shifted when the valveis moved in an opposite direction for changlngthe communication between the suctlon-compression devices and the valve for causing a continuous flow of liquid through the valve in a given direction, said handle being arranged for in-' dicating the direction of flow through said valve.
6. A surgical instrument comprising a supporting structure, a valve having an inlet opening and an outlet opening, said valve comprising in part a plug having a pair of recesses and a shiftable handle, said valve being provided with feed openings, a pair of suction-compression devices, and conduits connected with the valve and communicating with the outlet and inlet openings, said conduits being provided with needle means 1 for connection with a donor and a recipient, each of said suction-compression devices comprising a pair of elements, one element of each of" the devices being fixedly connected with the supporting structure and the remaining elements being operatively connected with the valve and communicating with said feed openings one of the recesses in the movable part of the valve being arranged for placing one of the suction-compression devices in communication with the outlet opening and the other of said recesses being arranged for placing the other of the suction-co1npression devices in communication with the inlet opening during the, movement of the valve in one direction, said recesses being sni' ted'when the valve is moved in an opposite direction for changing the communication between the suction-compression devices and the valve for causing a continuous flow of liquid through the valve in a given direction, said handle being arranged for indicating the direction of flow through said-valve, said handlebeing shiftabl'e for reversing the action of the valve whereby the liquid will be caused to flow in an opposite direction.
7. A surgical instrument comprising a supportingstructure, a valve having an inlet opening and an outlet opening, conduit means connected with thevalve and communicatin with. said inlet and outlet openings, sa-i valve comprising, in part, a movable member havmg a handle and recesses, and a pair of suction-compression devices mounted upon said supporting structure, each of said sucsaid valve being movable in a reciprocatory manner for operating said suction-compression devices for causing a continuous flow of a liquid through the valve in a given direction, said handle assuming positions during the movement of the valve for indicating the direction of flow of the liquid through said valve.
8. A surgical instrument comprising a supporting structure, a valve having an inlet opening and an outlet opening, conduit means connected with the valve and cornmunicating with said inlet and outlet openings, said valve comprising in part a movable member having a handle and recesses, and a pair of suction-compression devices mounted upon said supporting structure, each of said suctioncompr-ession devices comprising a pair of elements, one of said elements being operatively connected with the valve and movable with respect to the other of said elements,
said valve being movable in a reciprocatory manner for operating said suction-compression devices for causing a continuous flow of a liquid through the valve in a given direction, said handle assuming positions during the movement of the valve for indicating the direction of flow of the liquid through said valve, the position of said handle during the movement of the valve being also arranged for indicating the compression side of the valve.
9. A surgical instrument comprising a supporting structure, a valve having an inlet and an outlet opening, bearing means associated with the valve and arranged for riding upon said supporting structure, conduit means connected with the valve and communicating with saidinlet and outlet openings, said valve comprising in part a movable member having a handle and recesses, and a pair of suction-compression devices mounted upon said supporting structure, each of said suction-compression devices comprising a pair of elements, one of said elements being operatively connected with the valve and movable with respect to the other of said elements, said valve being movable in a reciprocatory manner for operating said suctioncompression devices for causing a continuous flow of a liquid through the valve in a given direction, said handle assuming positions during the movement of the valve for indicating the direction of flow of the liquid through said valve.
10. A surgical instrument comprising two syringes detachably mounted in diametrical position upon: a rigid? support, each of saidvalve o causing compression in one and suction in the a other, said valve provided with ball bearings upon the surtacecontact 1 g the-rigid" Supdjva-lve provided with tubular orifices 'd discharge con-- .iiy disposed. at;
port,sa for attachment of intake duits, said orifices diamet a.
ninety degrees from the orifices of the syringe channels, said valve provided with a movabl'e core,'said core having a-projection operating iii a quarter circle recess limiting its-moves ment to a ninetydegree arc, said core provided-with two channels diametrically disposed and so arranged that at maximum rotation of the core in one direction flonesyringe channel is connected with the discharge orifice flow offiuid through the instruinent,: said tion may be reversed thereby reversing the.
handle operatingfin a slot whereby its direcposition of the valve core during operation,
simultaneously "reversing the direction of the flow of fluid through the device. I i
11. A surgical instrument comprising two syringes detachably mounted in, dianietrical' position upon a rigid support,each of said syringes comprising a pair of elements, one of said elements being operatively connected with a movable valve by means of rigid tubular channels and movable with respect to the other of said elements,said valve so disposed that movement of the valve operates the syringes simultaneously causing compression in one and suction in the other, said valve provided with intake and discharge channels, and flexible conduits attached thereto, said valve having a movable member, said movable member provided with two channels so disposed as to connect the intake channel with one syringe, and the discharge channel with the other, said movable member having a handle for changing the position of the movable member changing the channel connections between the syringe channels and the intake and discharge channels, said valve channels so arranged with intake channel, syringe channels, and discharge channel that 'during operation fluid flows simultaneously in all channels. of the device. I p 12. A. surgical instrument comprising a supporting structure,a valve havingan inlet openingand an outlet opening, conduitimeaiis;
,, connected with the; valve. and communicating,
'wi'tl'i' said inlet-and outlet openings, saidvalve comprising, in part, a movable member having'a handle and recesses, and a pair'ofsuc tion cornp ression devices mounted upon said supporting structure, each of? said suction compression devices comprising a pair of elements', one oftsard elements being operativelv connected with the valve and movable, with:
- liquid through the'valve in a given direction;
13. A? surgical instrument comprising "a supportingstructure, a valve having'an inlet and an outlet oipening',-bearing means assole ciated with the valve and arranged for rid inguponsaid supporting structure, conduit means connected with the valve and communieating withsaid'inlet and outlet openings, said valve comprising in'part a movable mem? ber'having axhandleand" recesses, and a pair, of: suction-compression devices mounted upon said? supporting structure, eachofsaidsuonon-compression devicescomprisingapair of elements, one of said elementsxbeingopera tively connectedwith. the valve and 'movable with respect to the other offsaid "elements, said valve being movable in a, reciprocatory manner for operating said suction' compression devicesfor causing a continuous flow of'a liquid through the valve-in a" given direction. k
1 144A surgical instrument comprising a cofsuction-compression devices mountedupon the supporting structure, each of said suction compression devicescomprising a pair of elements, one connected with the supporting structureandthe other operatively connected with theivalve and communicatingwiththe same, one of the elements in'e'ach of the suction-compressiondevices be ng movable relatively withre'spect to its'conipanion element,
said valve being movable for operating'said suction-compression devices for causing a'continuous flow of a liquid through the valve-in a predetermined direction, said handle being reversiblejfor causing the liquid to flowlin ail-opposite direction through the valve when manipulatedin shifted position; r
515,. A 1 surgical nstrument comprising a supportingstructure, a valve having an inlet opening and an outlet opening, conduitcmcans connected with the valve and communicating with said'inlet and outlet openings, said valve comprising in parta movable member having shift-able handle and "recesses, and a pair of suction-compression devices mounted upon the supporting structure, each of said suctioncompression devices comprising a pair of elements, one connected with the supporting 1 structure and the other operatively connected with the valve and communicating with the same, one of the elements in each of the suction-compression devices being Inovablerelatively with respect to its companion element,
I said valve being movable for operating saidv suction-compression devices for causinga continuous flow of a l1qu1d through the valve 1n a predetermined direction, sald handle be p, ing reversible for causing the liquid to flow with the outlet and inlet openings, said conduits being provided with needle means for ments :being operatively connectedwith the valve .and communicating with said feed openings, one of the recesses in the movable part of the valve being arranged for placing one of the suction-compression devices in communication with the outlet opening andthe other of said recesses being arranged for plac ing the other of the suction-compression de vices in communication with the inlet opening during the movement of the valve in one direction, said recesses being shifted when the valve is moved in an opposite direction for changing the communlcation between the suction-compression devices and the valve for causing a continuous flow of liquid through the valve in a given direction, said handle being shiftable for reversing the action of the valve whereby the liquid will be caused to flow in an opposite direction.
Signed at Rapid City, in the county of Pen nington and State of South Dakota, this, 31st day of October, A. D. one thousand nine hundred twenty-nine. I
WILLIAM E. MORSE.
connection with a donor and a recipient, each of said suction-compression devices comprising a pair of elements, one element of'each of the devices being fixedly connected with the supporting structure and the remaining elements being operatively connected with the valve and communicating with said feed openings, one of the recesses in the movable part of the valve being arranged 'for placing A a one of the suction-compression devices in communication with the outlet opening and the other of saidrecesses being arranged for placing the other of the suction-compression devices in communication with the inlet opening during themov'ement of the valve in one direction, said recesses being shifted when the valve is moved in an opposite direction for a.
changing the communication between the suction-compression devices and the valve for causing a continuous flow of liquid through the valve in agiven direction.
17. A surgical instrument comprising a supporting structure, a valvehaving an inlet opening and an outlet opening, said valve comprising in part a plug having a pair of recesses and a shiftable handle,said valve being provided with feed openings, a pair of suction-compression devices, and conduits connecte'dwith the'valve and communicating with the outlet and inlet openings, said conduits being provided with needle means for connection with a donor and a recipient, each of said suction-compression devices comprising a pair of elements,-one element'ofeach of the devices being fixedly connected with the supporting structure and the remaining ele-
US405459A 1929-11-07 1929-11-07 Surgical instrument Expired - Lifetime US1850132A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586919A (en) * 1984-04-06 1986-05-06 Taheri Syde A External shunt and method for procuring and preserving the endothelium of a vein used in arterial bypass
US5439452A (en) * 1994-01-31 1995-08-08 Children's Medical Ventures, Inc. Limit stop valve infusion device
US6059747A (en) * 1997-07-16 2000-05-09 Medex, Inc. Syringe pump infusion control set
US6884231B1 (en) 2002-10-17 2005-04-26 Hamilton Company Dual chambered fluid displacement apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586919A (en) * 1984-04-06 1986-05-06 Taheri Syde A External shunt and method for procuring and preserving the endothelium of a vein used in arterial bypass
US5439452A (en) * 1994-01-31 1995-08-08 Children's Medical Ventures, Inc. Limit stop valve infusion device
US6059747A (en) * 1997-07-16 2000-05-09 Medex, Inc. Syringe pump infusion control set
US6884231B1 (en) 2002-10-17 2005-04-26 Hamilton Company Dual chambered fluid displacement apparatus

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