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Publication numberUS2518165 A
Publication typeGrant
Publication dateAug 8, 1950
Filing dateSep 11, 1948
Priority dateJul 9, 1947
Publication numberUS 2518165 A, US 2518165A, US-A-2518165, US2518165 A, US2518165A
InventorsCharles Millard Andre
Original AssigneeCharles Millard Andre
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Instrument for the taking and injection of blood
US 2518165 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Aug. 8, 1950 A. c. MILLARD INSTRUMENT FOR THE TAKING AND INJECTION OF BLOOD Filed Sept. 11, 1948 I Q I INVENTOR fl/mz 6249mm mun/en BY Y ATTORNEYS Patented Aug. 8, 1950 UNITED IN STBUMENT FOR THE TAKING D INJECTION OF BLOOD Andr Charles Mil-lard, Lyon, France Application September 11, 1948, Serial No. 48,818.

In France July 9, 1 947 I 1 Claim.- (01. 128-.21:4)

This invention relates to instruments for the taking of blood and for injection.

It isalready known to provide sterile instruments. for the aseptic taking .of blood, said instruments comprising a rubber end-piece which is mounted at one end, on a test-glass for receiving theblood and is integral at itsother end, with a glass tube that carries the needle and is extended into the aforesaid end-piece bya bent part which rests against its internal periphery, advantagev being taken of the elastcity of the endpie'ce by changing .the inclination .of the needlesupporting tube in relation to the test-glass, in order to establishor .cut off communication with the vacuum previously created in the said testglass.

This kind of sterile apparatus for the aseptic taking of "bloodpresents, for the practitioner, certain difficulties by reason of the fact that, in order to ensure the maintenance of the vacuum in the test-glass when the needle has been uncovered and also to ensure the air-tightness of v the test-glass after the taking of the blood, it is necessary that the pressure of the bent part of the needle-carrying tube against the internal periphery of the rubber end-piece should be sufiiciently great; conversely, this renders it necessary after having pierced the vein with the needle, to develop a force that is suificiently great to obtain the required change of inclination.

There is therefore a risk of the needle swerving in the vein, thus causing the patient pain and leading to a defective taking of blood.

The present invention concerns an instrument of this kind which obviates the aforesaid disadvantages.

It is characterised essentially by the fact that, in a rubber tube, which connects the test-glass to the needle-carrying tube, there is inserted a ball, preferably made of glass, the diameter of which is greater than that of the orifice of the said rubber tube, so as to stretch the tube on its inside and thus ensure closure thereof, the closing effect being easily eliminated, at the moment of piercing, by simple external squeezing of the said rubber tube, between the fingers, opposite the ball. This squeezing produces in effect, a deformation of the rubber and causes the rubber to slip on the ball, thereby creating two lateral passages around the ball.

It is thus seen that the drawbacks set forth above, of the existing instruments, are wholly eliminated, since the placing of the needle-carrying tube into communication with the testglass and also its subsequent closure are obtained Without the necessity'of changing the position of the said needle-carrying tube in relation to the test-glass. I v In addition to its 'great ease of manipulation, the instrument according to the invention 'is also very easyto manufacture. v

In the foregoing, reference is made more especially to the taking of blood by vacuum created previously inside the test-glass in order to produce therein suction of the blood. ;It can easily be'seen, however, that the same instrument can be applied, without modification, to injections by putting under pressure, in the'test-glass, the liquid to be injected. In contradistinction with the taking of blood for which 'the test glass is first submitted to vacuum before it is sealed, it is necessary in such a case to fill the testglass before sealing it withthel'iquid to be injected, preferably under the pressure of a small amount of a neutral gas. Both the evacuation of the test glass and its filling under pressure may be performed in any suitable manner well known in the art.

According to an embodiment of the invention which is more particularly advantageous although not essential, the rubber tube, which provides the connection between the test-glass and the needle-carrying tube, may be formed, opposite the position' of the ball situated within it, with two opposite enlarged or flat parts, on which the fingers are to be placed, to ensure and facilitate the squeezing of the rubber tube.

The invention consequently covers, as a new industrial product, any sterile instrument for the aseptic taking of blood or injection, in which the closure and temporary opening of the communication between the test-glass and the needlecarrying tube is obtained in the manner herein described.

In order that the invention may be more clearly understood, the same will now be described, by way of example, with reference to the accompanying diagrammatic drawings, in which:

Figure 1 is a part-sectional view of the instrument;

Figure 2 is, on a larger scale, a longitudinal section of the rubber tube in its ball-receiving part; and

Figures 3 and 4 are, on the same enlarged scale, two cross-sections on the line 3-3 of Figure 2 and show respectively the tube in shut-off and open positions.

Referring to the drawings: I denotes the testglass; 2 denotes the rubber tube which is securely mounted thereon by an end-piece 3 also of rubber and integral therewith; 4 is a glass tube which is mounted at the end of the tube 2 and in which is sealed the needle 5 covered by the protecting cap 6.

As shown in Figure 1, the tube 2 is normally straight when the device is held in inclined position or, in other words, is semi-rigid so that the device may be readily manipulated with one hand.

Inserted within the tube 2 is a, ball I which is preferably made of glass and the diameter of which is greater than that of the orifice of the said tube, so as to stretch the tube on its inside by the elastic expansion of the rubber. The arrangement thus ensures the closure-of the tube 2 by eliminating all communication between the test-glass, inside which a vacuum has been previously created, and the needle-carrying tube.

The aforesaid rubber tube 2 comprises on the outside opposite the ball 1, two fiat parts 8 which are 180 apart.

In order to carry out an aseptic blood-taking with this instrument, it is sufficient, after having removed the cap 6. by filing at x-ac and after having piercedthevein with the needle 5,-to take hold of the tube 2 between two ,fingers by its flat parts 8' and to squeeze it, as indicated by the arrows shown in Figure 4;, The rubber is squashed and slideson the ball 1 thereby creating two lateral passages 9 which bring the test-glass l and the needle-carrying tube 4 into communication with each other. The-blood then flows into the test-glass. When the blood-taking is finished, it is sufficient to release the tube 2 which, returning to its original diameter, closes the testglass by means of the ball 1.

In order to remove theneedle from the blood filled test glass after the blood taking is terminated, it is sufficient to break the tube 4 after filing at y--y. Thus the test glass may be sent to a laboratory for analysis under perfectly sterile conditions without it being necessary for it to be accompanied by the needle and associated end of the tube 4.

What I claim is:

A syringe or the like instrument for medical purposes, comprising an ampule, syringe needle, a straight tube of an elastic material secured to the open end of the ampule and the rear end of the needle, respectively, said tube forming a straight, fluid type, semi-rigid connection between said ampule and needle and having part of its length exposed for grasping by the fingers of the operator, and a ball of rigid material having a diameter in excess of the inner diameter of said tube and being seated in the exposed part of the latter, whereby pressure of the operators fingers on the ball creates a temporary deformation of said tube, to increase its inner diameter at right angles to the direction of the pressure and to provide passages for a fluid past the ball.


REFERENCES CITED The following references are of record in th file of this patent: 1


Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1124285 *May 28, 1912Jan 12, 1915Philip V BrownDevice for withdrawing blood from the body.
US1951743 *May 28, 1930Mar 20, 1934Iso Ges M B HMethod of producing a prepared breaking point in ampulle
US2314767 *Mar 18, 1942Mar 23, 1943Burrell Technical Supply CompaAdjustable rubber valve
GB191328387A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2784716 *Mar 31, 1955Mar 12, 1957Baxter Laboratories IncSyringe unit
US2832344 *Dec 27, 1954Apr 29, 1958Emil DavidsonBlood sample collector
US2853069 *May 9, 1955Sep 23, 1958Cutter LabFlexible container with integral flow control
US2950716 *Jan 23, 1956Aug 30, 1960Fenwal Lab IncFluid handling method and apparatus
US3143109 *Feb 12, 1962Aug 4, 1964Raytheon CoBlood drawing device
US3797486 *Jan 2, 1973Mar 19, 1974Shaps RIntravenous infusion assembly
US3826256 *Jan 13, 1972Jul 30, 1974Medidyne CorpCatheter delivery device
US3939822 *Aug 14, 1974Feb 24, 1976Jack MarkowitzDisposable blood collection and filtering device
US4022217 *Sep 15, 1975May 10, 1977Dupaco IncorporatedCuff configuration for cuff tracheal tubes
US4106675 *Dec 22, 1976Aug 15, 1978The Kendall CompanyLiquid sampling device
US4114659 *Jun 7, 1977Sep 19, 1978Eitan GoldbergPipette filling and liquid dispensing device
US4142645 *Apr 12, 1978Mar 6, 1979Walton Donald GVacuum sealing closure lid for home canning operations
US4296759 *Jun 27, 1977Oct 27, 1981Sherwood Medical Industries Inc.Blood collection device and method with anti-backflow means
US4333479 *Oct 1, 1979Jun 8, 1982Shiplee Iii Lewis DDisposable needle assembly
US4730635 *Aug 19, 1987Mar 15, 1988Hall SurgicalValve and method
US4932938 *May 5, 1989Jun 12, 1990Medical Engineering CorporationUrethral indwelling catheter with incontinence control
US5019055 *Dec 22, 1989May 28, 1991Boyle Matthew OFlow regulator and method
US5265847 *May 3, 1993Nov 30, 1993Vorhis Daniel JSqueeze valve with augmented sealing
US5295293 *Jul 9, 1993Mar 22, 1994Alfred Teves GmbhArrangement and method for closing off fluid passages
US5443097 *Dec 9, 1993Aug 22, 1995Alfred Teves GmbhArrangement for closing off fluid passages
US5458138 *Oct 14, 1993Oct 17, 1995Gajo; Alden H.Nasopharyngeal fluid suction device
US5785300 *Mar 4, 1996Jul 28, 1998Moog Inc.Device for providing a uniformly-variable annular orifice
US5826621 *Aug 5, 1996Oct 27, 1998Alaris Medical Systems, Inc.Valve apparatus
US6623447 *Apr 12, 2002Sep 23, 2003Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US6659976 *Apr 16, 2001Dec 9, 2003Zevek, Inc.Feeding set adaptor
US6923785Apr 4, 2003Aug 2, 2005Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US6979311Apr 16, 2001Dec 27, 2005Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US7070575Aug 23, 2004Jul 4, 2006Zevex, Inc.Adaptor for feeding sets
US7150727Dec 11, 2002Dec 19, 2006Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US7367963May 23, 2005May 6, 2008Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US7815612Sep 14, 2005Oct 19, 2010Zevex, Inc.Apparatus and method for preventing free flow in an infusion line
US7976513Apr 5, 2004Jul 12, 2011Zevex, Inc.Apparatus and method for selectively controlling flow in an infusion line
US7998121Feb 5, 2010Aug 16, 2011Zevex, Inc.Automatic safety occluder
US8343111Sep 28, 2010Jan 1, 2013Zevex, Inc.Anti-free flow mechanism for enteral feeding pumps
US8425470Oct 1, 2010Apr 23, 2013Zevex, Inc.Anti-free-flow mechanism for enteral feeding pumps
US8491543Jul 22, 2011Jul 23, 2013Zevex, Inc.Automatic safety occluder
US8876787Mar 31, 2009Nov 4, 2014Zevex, Inc.Anti-free-flow mechanism for enteral feeding pumps
US8911414Sep 29, 2011Dec 16, 2014Zevex, Inc.Anti free-flow occluder and priming actuator pad
US9017296Mar 31, 2009Apr 28, 2015Zevex, Inc.Safety occluder and method of use
US20020007156 *Apr 16, 2001Jan 17, 2002Miles Scott D.Apparatus and method for preventing free flow in an infusion line
US20040039347 *Apr 4, 2003Feb 26, 2004Scott MilesApparatus and method for preventing free flow in an infusion line
US20040220542 *Apr 5, 2004Nov 4, 2004David CiseApparatus and method for preventing free flow in an infusion line
US20050119625 *Oct 3, 2003Jun 2, 2005Scott MilesApparatus and method for preventing free flow in an infusion line
US20050209552 *Aug 23, 2004Sep 22, 2005Beck Kent FAdaptor for feeding sets
US20050283121 *May 23, 2005Dec 22, 2005David CiseApparatus and method for preventing free flow in an infusion line
US20090254034 *Mar 31, 2009Oct 8, 2009Kent BeckSafety occluder and method of use
US20100082001 *Mar 31, 2009Apr 1, 2010Kent BeckAnti-free flow mechanism for enteral feeding pumps
US20100204651 *Feb 5, 2010Aug 12, 2010Mark StringhamAutomatic safety occluder
US20110028899 *Sep 28, 2010Feb 3, 2011Kent BeckAnti-free flow mechanism for enteral feeding pumps
USD672455Oct 1, 2010Dec 11, 2012Zevex, Inc.Fluid delivery cassette
U.S. Classification600/579, 138/45, 138/89, 251/342, 239/576, 138/46
International ClassificationA61M5/28, A61B5/15, A61M5/31
Cooperative ClassificationA61B5/150221, A61B5/150717, A61B5/150519, A61B5/150503, A61M5/28, A61M5/31, A61B5/154, A61B5/1438, A61B5/150351, A61B5/150557, A61B5/15003, A61B5/150389, A61B5/150541, A61B5/150732
European ClassificationA61B5/15B18B10, A61B5/15B12, A61B5/15B8D, A61B5/15B2D, A61B5/15B18D2D, A61B5/15B18D2, A61B5/15B20, A61B5/15B18D12F, A61B5/15B18B2, A61B5/15B18B10D, A61B5/154, A61B5/14B12, A61M5/28, A61M5/31