US3886930A - Blood collecting assembly - Google Patents

Blood collecting assembly Download PDF

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Publication number
US3886930A
US3886930A US419659A US41965973A US3886930A US 3886930 A US3886930 A US 3886930A US 419659 A US419659 A US 419659A US 41965973 A US41965973 A US 41965973A US 3886930 A US3886930 A US 3886930A
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United States
Prior art keywords
cannula
valve
valve means
holder
blood
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US419659A
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English (en)
Inventor
George R Ryan
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Abbott Laboratories
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Abbott Laboratories
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Priority to US419659A priority Critical patent/US3886930A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • A61B5/1545—Devices using pre-evacuated means comprising means for indicating vein or arterial entry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150213—Venting means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150221—Valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150473—Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • A61B5/150496—Details of construction of hub, i.e. element used to attach the double-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details

Definitions

  • ABSTRACT 128/276, 218 NV A blood collecting assembly having a cannula, a holder for the cannula, and a valve which is useful in 1 References Clted indicating when the venipuncture has been made by UNITED STATES PATENTS means of a blood telltale, which is easily compressed 2 837 093 6/1958 Tash 128/218 when the cannula is Pierced through a resealable 2:847:995 8/1958 Adams....
  • This invention relates to the art of collecting blood.
  • the blood collecting assembly of the invention includes a cannula, a holder for the cannula, and an improved valve for the cannula.
  • the valve is movable between a position in which the valve provides air venting through a restricted passage to provide a blood telltale and another position in which the valve prevents either air or blood from passing through the passage.
  • the valve has means for facilitating its compression, and in particular its eccentric buckling relative to the cannula. This reduces the force which would otherwise be required to cause effective shortening of the length of the valve.
  • the valve has a pierceable resealable wall or diaphragm through which the piercing end of the cannula can extend during the collection of blood and which can reseal when the valve returns to its extended position following the collection of blood.
  • the valve preferably has a small internal diameter section and a large internal diameter section.
  • the small internal diameter section is disposed at the open end of the cannula and the larger internal diameter section surrounds a substantial portion of the length of the interior marginal end of the cannula in one form of the invention.
  • the small internal diameter section has an internal valve ring or seal around which air can pass in one position of the valve and which prevents the passage of both air and blood in the other position.
  • the air vent can be provided in a number of ways such as by one or more holes in the valve body, by a groove in the hub which receives the valve, by a projection formed on the hub which receives the valve, or by a groove in the valve body at the hub.
  • the holder has a tubular body and a section, which has an internal conical surface, joining the tubular body.
  • the tubular body provides a passageway into which an evacuated container having a pierceable closure is adapted to be inserted.
  • the holder also has a visual indicator for indicating when the closure-piercing end has penetrated into the closure.
  • the conical surface provides a stop for the container when the closurepiercing end has pierced through the closure.
  • the valve includes a pair of columns which can buckle to facilitate of the valve as the cannula is inserted through the pierceable closure of the blood collecting container and which can effect extention of valve immediately following removal of the cannula from the pierceable closure.
  • FIG. 1 is a side elevational view, partly broken away and partly in section, of a blood collecting assembly in accordance with one embodiment of the invention
  • FIG. 2 is a side elevational view of an evacuated container with a closure closing off its one end, for use with the blood collecting assembly of the invention
  • FIG. 3 is an enlarged sectional view of the embodiment shown in FIG. 1, with the container inserted into the passageway of the cannula holder and with its closure just touching the valve;
  • FIG. 4 is a sectional view taken along line 4-4 of FIG. 3;
  • FIG. 5 is a fragmentary view similar to FIG. 3, but showing the valve in a position in which its air vent is closed off;
  • FIG. 6 is a sectional view similar to FIG. 5, but showing the valve eccentrically buckled and showing the cannula as penetrating the closure of the evacuated container;
  • FIG. 7 is a sectional view similar to FIG. 6, but showing the valve completely eccentrically buckled and showing the cannula as having penetrated through the closure;
  • FIG. 8 is a fragmentary sectional view of another embodiment of the invention.
  • FIG. 9 is an enlarged sectional view taken along line 99 of FIG. 8;
  • FIG. 10 is a fragmentary sectional view of yet another embodiment of the invention.
  • FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG. 10;
  • FIG. 12 is a fragmentary sectional view of still another embodiment of the invention, showing the valve in its initial position
  • FIG. 13 is a fragmentary sectional view of the embodiment shown in FIG. 12, but showing the valve in a position in which its air vent means is closed off;
  • FIG. 14 is an enlarged sectional view taken along line 1414 of FIG. 12;
  • FIG. 15 is a fragmentary sectional view of another embodiment of the invention, with the evacuated container inserted into the passageway of the cannula holder and with its closure just touching the valve;
  • FIG. 16 is a fragmentary view similar to FIG. 15, but showing the valve in a position in which its air vent valve is closed off;
  • FIG. 17 is a sectional view similar to FIG. 16, but showing the valve buckled outwardly and showing the cannula penetrating the closure of the container;
  • FIG. 18 is a sectional view similar to FIG. 17, but showing the valve completely buckled and showing the cannula as having penetrated through the closure;
  • FIG. 19 is a perspective view of the valve shown in section in FIGS. 15 through 18;
  • FIG. 20 is a sectional view taken along line 20-20 of FIG. 19;
  • FIG. 21 is a sectional view taken along line 21-21 of FIG. 20.
  • FIGS. 1 and 3 there is shown a blood collecting assembly generally indicated at 20.
  • the assembly includes a cannula 21 mounted in a onepiece holder 22.
  • the holder 22 has a generally tubular body 23 with an end wall or end portion 24 at one end and terminating at an opening 25 at its other end.
  • a hub portion or hub 27 formed integrally with the end wall 24 and having the same axis as the generally tubular body 23 extends into the interior of the passageway 23' provided by the body 23.
  • a hub portion or hub 26 formed integrally with the end wall 24 and having the same axis as the hub 27 and the body 23 extends exteriorly of the passageway 23.
  • a sheath 28 removably received by the hub 26 preserves the sterility of the exterior marginal end 29 of the cannula 21 until the venipuncture is ready to be made.
  • a valve 30 is disposed about the interior marginal end 31 of the cannula 21 and is shown to receive the hub 27.
  • a removable cap 33 is shown in FIG. 1 to close off and preserve the sterility of the passageway 23', the valve 30, and the interior marginal end 31 of the cannula 21 until the assembly is ready to be used.
  • the holder body 23 has a plurality of external annular rings 34 extending about its periphery. The rings 34 not only assist in gripping the holder 22, but they also strengthen the holder body 23.
  • the exterior marginal end 29 of the cannula 21 terminates at an open vein-piercing end 35.
  • a bevel indicator 36 is formed on the periphery of the holder body in alignment with the bevel at the vein-piercing end 35.
  • the interior marginal end 31 terminates at a closurepiercing end 37. It is preferred that the opening in the interior marginal end 31 be directly at the closurepiercing end 37 rather than in the side of the interior marginal end 31, although the invention does not require it to be located at the piercing end 37.
  • a rigid evacuated container 38 in the form of a transparent glass tube.
  • the container 38 has a pierceable, resealable elastomeric closure 39 closing off one end and maintaining the vacuum in the container 38.
  • valve is shown to have a relatively small internal diameter section 40 joined to a relatively large diameter section 41.
  • One marginal end 42 of the section 41 is slightly smaller than the remainder of the section 41 so that the marginal end 42 snugly embraces the hub 27.
  • the small internal diameter section 40 is shown to have an internal diameter which is only slightly larger than the outside diameter of the interior marginal end 31 of the cannula 21.
  • An end wall or diaphram 43 closes off one end of the section 40.
  • the valve 30 is composed of a pierceable, resealable, elastomeric material and thus the end 37 can pierce through the end wall 43 with which it is in alignment; when the end 37 is withdrawn the end wall 43 will reseal and thus the end wall 43 will be closed off again. More specifically, the valve 30 is composed of a styrene-butadiene copolymer although other suitable materials can be used.
  • Formed integrally with the inside of the section 40 is an annular valve ring or seal 44.
  • the inside diameter of the valve ring 44 is slightly less than the outside diameter of the interior marginal end 31 of the cannula 21.
  • the terminal end 47 of the section 41 is shown to be spaced from the interior surface of the end wall 24, and the tip of the end 37 is shown to be spaced a relatively long distance from the interior surface of the end wall 43 of the section 40.
  • the holder 22 is preferably composed of a substantially rigid, transparent material.
  • the valve 30 is also sufficiently transparent, when the venipuncture is made, a blood telltale can be seen at the open end 37.
  • the user can then move the evacuated container 38 further into the passageway 23 until the end 37 of the cannula 21 has pierced through the end wall 43 of the valve 30 and has penetrated into the closure 39, as shown in FIG. 6. In this position the open end 37 is sealed off by the closure 39.
  • An indicator 48 in the form of an annular ring is formed integrally with the inside surface of the transparent holder body 23.
  • the cannula opening at the end 37 communicates with the space within the evacuated container 38, thereby enabling flow of blood from the patient, through the cannula 21 and out of the open end 37 into the container 38.
  • the valve 30 is buckled eccentrically to even a greater extent than shown in FIG. 6.
  • the end 49 of closure 39 is shown in abutment with a conical internal surface 18 of a conical section 19.
  • the conical surface 18 serves as a stop when the container 38 is moved from the position shown in FIG. 6 to the position shown in FIG. 7.
  • the container 38 When the sample of blood has been collected, the container 38 is withdrawn from the passageway 23 and the valve 30 returns to the position shown in FIG. 5. It is preferred to coat the interior of the valve 30 with silicone or other suitable lubricants so that the marginal end 42 of the valve 30 can more easily slide on the hub 27 as the valve 30 is being shifted from the position shown in FIG. 3 to the position shown in FIG. 5 and so that the interior marginal end 31 will not impede either the compression, specifically the eccentric buckling, or the subsequent extension of the valve 30.
  • the closure 33 is removed and the container 38 is inserted into the passageway23' of the holder 22 as shown in FIG. 3. Thereafter, the sheath 28 is removed and venipuncture is made. As soon-as the venipuncture is made, the user will see a small telltale of blood at the open end 37.
  • the air that is in the cannula 21 is vented through the restricted passage, the section 41, the air holes 45 and 46, and the passageway 23 to the atmosphere.
  • the restricted passage permits only a very low rate of blood flow but it is sufficient to provide the blood telltale.
  • the space within the section 40 is made as small as practical so that the amount of blood that can pass into it when the valve 30 is in the position shown in FIG. 5 if very small.
  • the container 38 is moved to the position shown in FIG. 5, thereby sealing off the opening at the end 37 from the atmosphere.
  • the container 38 can now be moved to the position shown in FIG. 6.
  • the container 38 is moved to the position shown in FIG. 7, at which blood can pass through the open end 37 into the space within the container 38.
  • the container 38 is removed from the passageway 23. As the cannula 21 leaves the closure 39, the
  • closure 39 automatically reseals to maintain the sterility of the blood collected in the container 38.
  • the valve 30 automatically returns to the position shown in FIG. Sbecause of its resilience and the end wall 43 automatically reseals. In the position shown in FIG. 5, blood cannot flow past the valve ring 44 into the space between the section 41 and the interior marginal end 31.
  • the marginal end 29 of the cannula 21 can be withdrawn from the. patients vein. However, should it be desired to take two or more samples, this can be done without making anothervenipuncture because the open end 35 of the cannula 21 can be left in the patients vein until all the samples have been collected.
  • a second container with its closure is inserted into the passageway 23' either to the position shown in FIG. 6 and from there to the position shown in FIG. 7, or directly to the position shown in FIG. 7.
  • the container and its closure are removed from the passageway 23 and valve 30 automatically returns to the position shown in FIG. 5.
  • additional samples can be collected.
  • FIGS. 8 and 9 the same reference characters are used as in the embodiment of FIGS. 1 and 3 through 7, together with the letter a, to designate components having the same general construction, function and relative location.
  • FIG. 8 the same reference characters are used as in the embodiment of FIGS. 1 and 3 through 7, together with the letter a, to designate components having the same general construction, function and relative location.
  • a valve 30a differs from the valve 30 in that, instead of having air vent holes 45 and 46, marginal end 424 of the valve 30a has a groove 50.
  • groove and hub 27a provide an air passage.
  • the valve 30a is shown in FIG. 8 to be in a position corresponding to the initial position of the valve 30 in FIG. 3 in which there is communication with the atmosphere via groove 50.
  • an air sea] is provided by the hub 27a and the inside surface of the valve 30a beyond the groove 50.
  • FIGS. 10 and 11 the same reference characters are used as in the embodiment of FIGS. 1 and 3 through 7, together with the letter b, to designate components having the same general construction, function and relative location.
  • FIG. 10 there are shown fragmentary portions of a cannula 21b and holder 22b.
  • Valve 30b differs from the valve 30 in that it has no air vent holes 45 and 46.
  • hub 27b has a projection or spacer 51.
  • Marginal end 42b embraces the hub 27b, but a groove or air passage 52, 53 is provided at each side of the projection 51 between the marginal end 42b and the hub 27b.
  • the valve 30b is shown in a position in which the air passages 52 and 53 provide communication with the atmosphere.
  • the terminal end 47b of the valve 30b is in sealing abutment with the inside surface of the end wall 24b, thereby preventing communication with the atmosphere.
  • FIGS. 12and 14 depict fragmentary portions of cannula 21c and holder 22c, together with valve 30c.
  • the valve 306 is shown in its initial position in FIG. 12 corresponding to the position of the valve 30 in FIG. 3, and the valve 300 is shown to be in different position in FIG. 13 corresponding to the position of the valve 30 in F IG. 5.
  • the valve 30c does not have a valve ring or seal as does the valve 30.
  • the hub 27c hasstep ped sections 54 and 55.
  • the hub section 54 has a slightly smaller diameter than the hub section 55.
  • FIGS. 15 through 21 the same reference characters are used as in the embodiment of FIGS. 1 and 3 through 7, together with the letter d to designate components having the same general construction, function and relative location.
  • FIG. 15 the same reference characters are used as in the embodiment of FIGS. 1 and 3 through 7, together with the letter d to designate components having the same general construction, function and relative location.
  • fragmentary portions of a cannula 21d 30d is shown to have a body with columns 60 and 61.
  • the two columns 60 and 61 are shown to be diametrically opposite each other.
  • Each column 60 and 61 is shown to be generally T-shaped in construction.
  • the vertical bar part of each T-shaped column extends in a radial direction and the horizontal bar part of each T- shaped column extends in a directional perpendicular to the associated vertical bar part.
  • the columns 60 and 61 are shown to be equally spaced apart. It is preferred to use two columns but it is within the spirit of the invention to use more than two columns, if desired.
  • the columns are preferably identical in length, crosssectional area, shape and are symetrically located relative to the center line of the cannula 21d. This provides outward buckling as the valve 30d is moved from the position of FIG. 16 through the position of FIG. 17 to the position of FIG. 18. Accordingly buckling of columns 60 and 61 is completely free and unimpeded because there is no contact between the columns and the cannula 21 d during distention of the valve 30d. Likewise, resilient extension or straightening out of the columns 60 and 61, due to their construction and the nature of the material of which the valve 30d is composed, is also completely free and unimpeded because there is no contact between the columns and cannula 21d during extension of the valve 30d.
  • the one ends of the columns 60 and 61 are integrally joined by an annular collar or ring 62 which is slideably received by hub portion or hub 27d.
  • the other ends of the columns are joined to a ring-shaped section 63 which is joined to a relatively small internal diameter section 40d.
  • the buckling of the valve 30d takes place essentially entirely in the columns 60 and 61.
  • the columns 60 and 61 are completely buckled as shown in FIG. 18, the columns 60 and 61 are buckled in two different directions as is evident by a comparison to FIG. 17.
  • the section 40d is provided with an internal annular valve ring 44d for the same purpose. It is apparent that upon making the venipuncture, air can be vented to the atmosphere through the space between the cannula 31d and the side wall 65 above the valve ring 44d, through the space between columns 60 and 61, and through the space between the container 38 and the inside of the tubular body 23. The valve is closed off when in the position of FIG. 16.
  • the valve 30d, and in particular the end of the section 40d is provided with an end wall 43d, in alignment with the cannula 21d, which is pierceable and resealable.
  • the blood telltale is visible through the transparent holder 22d and the transparent valve 30d.
  • the valve 30d is preferably composed of the same material as the other embodiments of the valve.
  • FIGS. 8 and 9, and 11, 12, 13 and 14, and through 21 are used in the same manner as the blood collecting assembly of the embodiment of FIGS. 1 and 3 through 7.
  • the holder shown in the drawings can also be used without a valve.
  • the holder is injection molded to the cannula; specifically, the holder has an end wall with an integral outwardly extending projection or hub and an inwardly extending projection or hub.
  • the end wall and these hubs are injection molded about a substantial portion of the length of the cannula to provide solid holding of the cannula.
  • the tapering section which joins the end wall and the tubular body makes an included angle of about 56 and is preferably between about 40 and This enables the venipuncture to be made at a more shallow angle of approach.
  • the relatively short exterior marginal end means that for a cannula of a given outside diameter and a given wall thickness, the exterior marginal end is more rigid.
  • the outside diameter of the holder body is about 0.80 inch, but it can be within a range of between about 0.550 inch and 0.850 inch.
  • the wall thickness of the tubular body, the tapering section and the end wall are each about 0.05 inch, the outwardly extending hub is about0.35 inch in length, the inwardly extending hub is about 0.25 inch in length and the interior marginal end of the cannula is about 0.65 inch in length.
  • a holder, cannula and valve assembly for collecting blood comprising: a holder having a generally tubular longitudinally extending passageway open atone end and having an end portion opposite the open end, a cannula extending longitudinally and connectedto the end portion of said holder, said cannula having an interior marginal end terminating in the passageway at a piercing end and having an exterior marginal end extending exteriorly of said holder and terminating ata vein-piercing end, said interior marginal end having an opening through which blood can pass, valve means received about said interior marginal end of said cannula and connected to said holder, said valve means including air vent means providing communication from said cannula opening, through said air vent means,'into said passageway, and to the atmosphere, and mounting means for said valve means connected to the end portion of said holder and enabling lengthwise shifting movement of the valve means relative to the cannula from a first position in which said cannula opening communicates with the atmosphere to provide a blood telltale at said cannula opening
  • said mounting means comprising a hub connected to said holder. said valve means being engaged with said hub, said air vent means including a groove in said hub.
  • said mounting means comprising a hub connected to said holder, said valve means being engaged with said hub, said air vent means including a groove in said valve means where said valve means engages said hub.
  • valve means includes a generally tubular body having a closed end and an integral sealing ring spaced apart from said closed end, said interior marginal end being out of sealing engagement with said sealing ring when said valve means is in its first position, said sealing ring said container.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Sampling And Sample Adjustment (AREA)
  • External Artificial Organs (AREA)
US419659A 1971-04-30 1973-11-28 Blood collecting assembly Expired - Lifetime US3886930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US419659A US3886930A (en) 1971-04-30 1973-11-28 Blood collecting assembly

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US13899071A 1971-04-30 1971-04-30
GB1698372 1972-04-12
AU41120/72A AU462860B2 (en) 1971-04-30 1972-04-13 Blood collecting assembly
US419659A US3886930A (en) 1971-04-30 1973-11-28 Blood collecting assembly

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US3886930A true US3886930A (en) 1975-06-03

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US419659A Expired - Lifetime US3886930A (en) 1971-04-30 1973-11-28 Blood collecting assembly

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US (1) US3886930A (it)
AU (1) AU462860B2 (it)
CA (1) CA1009110A (it)
CH (1) CH555182A (it)
DE (1) DE2221096A1 (it)
FR (1) FR2134516B1 (it)
GB (2) GB1345980A (it)
IT (1) IT953829B (it)
ZA (1) ZA722405B (it)

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020831A (en) * 1975-12-04 1977-05-03 Technicon Instruments Corporation Blood collecting syringe
US4041934A (en) * 1976-02-02 1977-08-16 Abbott Laboratories Arterial blood sampling unit
US4106497A (en) * 1977-02-04 1978-08-15 Becton, Dickinson And Company Multiple sample needle assembly with indicator means
US4129130A (en) * 1975-11-05 1978-12-12 Federico Bigarella Vial-syringe
DE2835101A1 (de) * 1977-08-10 1979-02-22 Becton Dickinson Co Blutentnahmeeinrichtung
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Also Published As

Publication number Publication date
AU4112072A (en) 1973-10-18
AU462860B2 (en) 1975-07-10
GB1345979A (en) 1974-02-06
ZA722405B (en) 1973-01-31
FR2134516B1 (it) 1977-12-23
CH555182A (fr) 1974-10-31
DE2221096A1 (de) 1972-11-30
GB1345980A (en) 1974-02-06
CA1009110A (en) 1977-04-26
FR2134516A1 (it) 1972-12-08
IT953829B (it) 1973-08-10

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