Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2485842 A
Publication typeGrant
Publication dateOct 25, 1949
Filing dateJul 27, 1946
Priority dateJul 27, 1946
Publication numberUS 2485842 A, US 2485842A, US-A-2485842, US2485842 A, US2485842A
InventorsPennington William A
Original AssigneePennington William A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Differential anesthesia valve
US 2485842 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Oct. 25, 1949. w. A. PENNINGTON DIFFERENTIAL ANESTHESIA VALVE Filed July 27, 1946 5 RN Y 0" JE Tl LN NN R E w m T, A A M a. um

Patented Oct. 25, 1949 UNITED STATES PATENT OFFICE DIFFERENTIAL ANESTHESIA VALVE William A. Pennington, Buckingham, Va.

Application July 27, 1946, Serial No. 686,637

2 Claims.

My invention relates to the administration of anesthesia.

It is the object of this invention to provide a differential anesthesia valve.

It is the object of the invention to provide a valve that makes possible the alternate administration of two intravenous solutions.

It is a further object of the invention to provide all adjustments so localized at one point as to make it possible for closer attention to the patient with less necessary attention to the apparatus on the part of the physician.

It is a further object of the invention to provide a valve that has relatively large apertures to facilitate cleaning.

It is a further important object of the valve to make it impossible to mix the solutions within the valve.

It is the object of this invention to provide a valve with a single passageway to the patient, allowing communication between the syringe and the patient only, when administering anesthesia.

It is a further object to provide a valve in which the movement of the single passageway and the connecting of the syringe to a reservoir of one material is effected; or the movement of the valve can be efiected for the connection of the syringe to another material. In either event it is impossible to mix the materials on their Way to the patient.

It is a further object to alternately connect a solution to the patient and when one of such solutions is so connected, a charge of another solution is prepared for administration.

Referring to the drawings;

Figure l is an isometric perspective of the valve, the syringe, a supply of pentothal, a supply of saline solution and the arm of the patient receiving the material.

Figure 2 is a section through the valve with an elevation of the syringe showing the valve in position for connection to the patient to the saline solution while the syringe is connected to the pentothal supply.

Figure 3 is a similar view to Figure 2 showing the valve in position for the discharge from the syringe of the pentothal charge to the patient while the saline solution has been shut ofi from the patient.

Figure 4 is a vertical section through the valve on line 4-4 of Figure 3 indicating its construction and method of operation.

Figure 5 is a top plan view of the valve, showing in detail its direction indicator.

a valve body having a port 2, communicating with a pipe 3, constituting a connector for the rubber pipe 4 that in turn is connected suitably to the arm of the patient for intravenous application of the fluids hereinafter referred to.

The arm of the patinet is designated 5 and the attachment of the pipe 4 is illustrated diagrammatically. The exact means of injection is of no interest in connection with this invention.

6 is a port in the valve body I which communicates with the connector I, that in turn supports the rubber pipe 8 that is connected to a supply 9 of pentothal.

The port In in the valve body I is connected to a connector I l which in turn supports the syringe l2. The actuation of the plunger l2a of the syringe [2 serves to draw the pentothal into the syringe body and also serves to eject it at the suitable moment.

The passageway l3 in the valve body I is connected to the connector [4 which in turn supports the rubber tube l5 that is connected to a saline solution container [6.

The valve member I! is provided with a cutaway portion IB to form a passageway that will interconnect the several ports inside of the valve body I A similar cutaway passageway is formed at 19. These internal passageways serve to place source of supply and the patient in direct contact with one another or to connect the source of supply of pentothal to the syringe. It will be observed that in either way it is possible to conduct the fluid either to the patient or to the syringe without any possibility of a mixture of the two.

A central passageway 20 is provided through the valve body which is adapted to connect the syringe to the patient. In such a position there is no possibility of any connection of the saline solution to the patient at the time the pentothal is being injected. The valve member I! will carry the handle 2! and is provided with an indicator arrow 22 and an indicator as to the position of the valve passageways at 23 and 24. The valve member is mounted upon a sealing ring 26 and is retained by retaining set screw 21. A suitable seal 28 is provided below the valve.

The novel feature of this invention resides in the ability, with a single handle, to connect the patient to the saline solution or connect the patient to the source of pentothal or other material without any possibility of mixture. The further advantage is that while the patient is receiving the saline solution, a measured quantity of pentothal can be withdrawn from the Referring to the drawings in detail, I designates container 9 into the syringe l2 ready for the next 3 operation of injecting the pentothal into the patient. In this manner the single hand of the physician or nurse may be employed for the purpose of complete regulation of the application of the several fluids involved with no possibility of mixture or mistake.

It will be thus seen that I provide a valve which makes possible the alternate administration of 2 intravenous solutions all adjustments localized atone. point; making it possible to. givecloser attention to the patient with less necessary attention to the apparatus. The valve itself has. relatively large apertures which facilitate clearring and they are so arranged that! it... is;impos'- sible to mix a solution within the valve.

It will be understood that desire to com prehend within my invention such. modificationsas may be necessary to adapt the invention to various conditions of use, all within the scope of the hereinafter appended claims.


of." the; valvebody, having. spacedports four in. numben. arotor having. a. single transverse. passageway and two oppositely disposed quadrant surfacepassagewayaa syringe connected toone of. saidaponts; asource otanesthetic connected.

to. an. adjacent port, a source of saline solution connected toithe-other adjacent port and means;

on connecting; the patient. to the fourth. port whereby. as. said. valve is positioned in one-posinit's quadrant passageways will connectthe: saline solution to the patient and the. anesthetic;

tolthei syringe andin the other; position. the patient. will be. connected to. the. source of? anesthetics only in the syringe while thev source of; anesthetic. and. the saline solution. are cut. 011

, way adjacent to said one passageway being connected to a source of saline solution and the fourtlrpassageway connected to a patient, means in the syringe for withdrawing a supply of anest'hetic intothesyringe to measure it and prepare-info: injection whereby when the rotor is in one position its external passageways will connect'theisource of anesthetic and the syringe to human-anesthesia. apparatus, the combina-tion.v

one another and connect the patient and the s-ounceiot saline solution to.- one another. ancr. in the other position the internal passageway of said rotor. wil-lconnect. the syringe. direct to the patient so that the measured. supply of anesthetic canzbezinjected intothe patient.

REFERENCES. CITED The: following: references? are; of; record: tliez:

file" at this; patent:


1,978,351 Meeker: Sept. 11,19,342. 2,059,803 Mann Nov. 3;, 1936;

2,074,374 Mendoza Mar:'2'3,,19 37

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1973351 *Jun 13, 1932Sep 11, 1934Sidney MeekerBlood transfusion apparatus
US2059803 *Nov 13, 1933Nov 3, 1936Robert MannBlood transfusion apparatus and method
US2074374 *Nov 21, 1934Mar 23, 1937Fernand Francois Dominique SuaApparatus for intestinal irrigations
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2710004 *Oct 11, 1951Jun 7, 1955Melvin Stamper GeorgeApparatus for administering intervenous anesthetics
US2842124 *Dec 10, 1956Jul 8, 1958James Joseph MBlood transfusion system
US2979055 *Jun 18, 1954Apr 11, 1961Burroughs Wellcome CoMethod for the administration of muscle relaxant drugs
US3057350 *Jun 27, 1958Oct 9, 1962Baxter Don IncAdministration set
US3344785 *Feb 1, 1965Oct 3, 1967Pharmaseal LabValve for exchange transfusion system
US3362400 *Jun 18, 1964Jan 9, 1968Isabelle D. De BellaUrine measuring and analyzing device
US3834372 *Jan 12, 1973Sep 10, 1974S TurneyDisposable manifold with atmospheric vent
US4371003 *Jan 19, 1981Feb 1, 1983Goguen Robert PSwimming pool/spa selector valve
US4407660 *Sep 8, 1981Oct 4, 1983Baxter Travenol Laboratories, Inc.Plasmapheresis assembly and associated fluid manifold
US4662868 *Jul 26, 1985May 5, 1987University Of PittsburghSyringe apparatus and valve employed therein
US4784637 *Mar 23, 1987Nov 15, 1988Ryder International CorporationAseptic irrigation syringe
US4900322 *Oct 5, 1988Feb 13, 1990Adams James DBlood component pooling valve and kit
US4967797 *Aug 16, 1989Nov 6, 1990Manska Wayne ETap valve
US5078688 *May 28, 1991Jan 7, 1992Baxter International Inc.Paracentesis catheter system
US5135026 *Aug 16, 1989Aug 4, 1992Manska Wayne EMedical valve having fluid flow indicia
US5265840 *Oct 9, 1992Nov 30, 1993Symbiosis CorporationPinch valve
US5300046 *Sep 23, 1992Apr 5, 1994Symbiosis CorporationThoracentesis sheath catheter assembly
US5352371 *Feb 24, 1993Oct 4, 1994Cobe Laboratories, Inc.Method and apparatus for repeatedly passing a fluid through a fluid treatment unit
US5372581 *Jul 21, 1993Dec 13, 1994Minneapolis Children's Services CorporationMethod and apparatus for placental blood collection
US5439452 *Jan 31, 1994Aug 8, 1995Children's Medical Ventures, Inc.Limit stop valve infusion device
US5603700 *Dec 27, 1993Feb 18, 1997Daneshvar; YousefSuction and injection system
US5658248 *Aug 4, 1995Aug 19, 1997Localmed, Inc.Double-blind infusion device and method
US5743883 *Jun 7, 1995Apr 28, 1998Visconti; Peter L.Thoracentesis catheter instruments having self-sealing valves
US6059747 *Jul 16, 1997May 9, 2000Medex, Inc.Syringe pump infusion control set
US6217556Mar 19, 1998Apr 17, 2001Allegiance CorporationDrainage catheter
US7766883Oct 30, 2007Aug 3, 2010Medrad, Inc.System and method for proportional mixing and continuous delivery of fluids
US7975721Mar 28, 2007Jul 12, 2011John HiebertFluid valve systems
US8162903Aug 2, 2010Apr 24, 2012Medrad, Inc.System and method for proportional mixing and continuous delivery of fluids
US8454494 *Dec 14, 2009Jun 4, 2013Ethicon Endo-Surgery, Inc.Support apparatus for gastric band system injector
US8747358Sep 29, 2005Jun 10, 2014Bayer Medical Care Inc.Injector system with a manual control device
US9011377Nov 5, 2008Apr 21, 2015Bayer Medical Care Inc.Fluid mixing control device for a multi-fluid delivery system
US9433730Mar 14, 2013Sep 6, 2016Bayer Healthcare LlcFluid mixing control device for a multi-fluid delivery system
US9481477 *Aug 19, 2013Nov 1, 2016Life Technologies CorporationFluid manifold system with rotatable port assembly
US9523434 *Apr 22, 2015Dec 20, 2016Fujikoki CorporationFlow passage switching valve
US20020087118 *Dec 29, 2000Jul 4, 2002Duoject Medical Systems Inc.Pharmaceutical delivery system
US20060178632 *Sep 29, 2005Aug 10, 2006Trombley Frederick W IiiInjector system with a manual control device
US20080275398 *Mar 28, 2007Nov 6, 2008John HiebertFluid valve systems
US20100114040 *Nov 5, 2008May 6, 2010Medrad, Inc.Fluid mixing control device for a multi-fluid delivery system
US20100298699 *Aug 2, 2010Nov 25, 2010Medrad Inc.System and Method for Proportional Mixing and Continuous Delivery of Fluids
US20110144419 *Dec 14, 2009Jun 16, 2011Timm Richard WSupport Apparatus for Gastric Band System Injector
US20140076454 *Aug 19, 2013Mar 20, 2014Hyclone Laboratories, Inc.Fluid manifold system with rotatable port assembly
US20150316156 *Apr 22, 2015Nov 5, 2015Fujikoki CorporationFlow passage switching valve
USRE45717Apr 24, 2014Oct 6, 2015Bayer Medical Care Inc.System and method for proportional mixing and continuous delivery of fluids
EP2623138A2Dec 20, 2002Aug 7, 2013KCI Medical ResourcesVented vacuum bandage with irrigation for wound healing and method
WO1987000440A1 *Jul 22, 1986Jan 29, 1987University Of PittsburghSyringe apparatus with rotatable valve
WO2009058124A1 *Oct 29, 2007May 7, 2009John HiebertFluid valve systems
U.S. Classification604/186, 604/248, 137/625.19
International ClassificationF16K11/085, F16K11/02, A61M39/22, A61M39/00
Cooperative ClassificationF16K11/0853, A61M39/223
European ClassificationA61M39/22D, F16K11/085N