US3141460A - Blood collecting assembly - Google Patents

Blood collecting assembly Download PDF

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Publication number
US3141460A
US3141460A US122513A US12251361A US3141460A US 3141460 A US3141460 A US 3141460A US 122513 A US122513 A US 122513A US 12251361 A US12251361 A US 12251361A US 3141460 A US3141460 A US 3141460A
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United States
Prior art keywords
stopper
holder
tube
bore
cannula
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Expired - Lifetime
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US122513A
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Tsochatzopoulos Photios Paul
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Becton Dickinson and Co
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Becton Dickinson and Co
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Priority to US122513A priority Critical patent/US3141460A/en
Priority to FR964743A priority patent/FR1384386A/en
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Publication of US3141460A publication Critical patent/US3141460A/en
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Expired - Lifetime legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150351Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150473Double-ended needles, e.g. used with pre-evacuated sampling tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/15058Joining techniques used for protective means
    • A61B5/150587Joining techniques used for protective means by friction fit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150694Procedure for removing protection means at the time of piercing
    • A61B5/150717Procedure for removing protection means at the time of piercing manually removed
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/153Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154Devices using pre-evacuated means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape

Definitions

  • This invention relates to a structurally and functionally improved blood collecting assembly, and in its more specific aspect aims to provide an assembly of alternate and/or improved type over that disclosed in the prior United States patent to Joseph I. Kleiner 2,460,641 of February 1, 1949.
  • a further object is that of furnishing an assembly involving components of improved design.
  • FIG. 1 is an exploded perspective view of the parts embraced in one form of the assembly
  • FIG. 3 is a sectional side view taken along the line 33 in the direction of the arrows of FIG. 2;
  • FIG. 4 is a fragmentary view similar to FIG. 3 but showing the parts in a different position
  • FIG. 5 is a transverse sectional View taken along the line 55 in the direction of the arrows as indicated in FIG. 3; 7
  • FIG. 6 is a similar view but showing the parts shifted to a different position
  • FIG. 7 is a fragmentary enlarged sectional side view of the forward end of the holder.
  • FIG. 8 is a fragmentary sectional side view similar to FIG. 3 but showing an alternative structure.
  • FIG. 9 is a transverse sectional view taken along the line 99 in the direction of the arrows as indicated in FIG. 8.
  • the numeral 10 indicates a tube conveniently formed of glass and having a closed rear end 11. Its opposite end is open but sealed by a stopper.
  • the interior of the tube is under a condition of vacuum.
  • the stopper will preferably include a head portion embracing rounded end edges 12 and side edges 13 intervening the same. As illustrated, side edges 13 are fiat. However, such edges may alternatively have a slightly oval shape.
  • Integral with this head portion is a plug 14 which is conveniently formed with a groove 14' adjacent the zone of juncture with the head and may be counterbored as at 15.
  • the stopper is formed of resi ient material such as rubber and is forced into seating contact with the bore face of the tube so as to be under a condition of compression such that the vacuum within the interior of that tube is maintained.
  • the holder will include a rear or inner plate 16 formed with an aperture the diameter of which is such that the head of the stopper will freely pass therethrough. Extending forwardly or outwardly from plate 16 in line with the edge of its aperture and at opposite points therein are strips or legs 17. These elements converge towards each other and mount at their forward ends a bridging strip 18. The latter, on its outer face, may support a hub or tip 19 perforated for the passage of a cannula there- 3,141,460 Patented July 21, 1964 through. That cannula will embrace a body 20 having a suitable piercing outer end (not shown) and a stopper piercing inner end 21.
  • the inner end of the cannula extends into the bore of the holder, or, in other words, into the space between the strips or legs 17.
  • Those legs are provided with grooves 22 in their inner faces. With the illustrated proportions of the parts those grooves will lie in a plane beyond the stopper-piercing end 21 of the cannula.
  • strips 17 may be thickened as indicated at 23 so that the forward side-wall faces of the grooves will be of a height greater than the corresponding rear faces.
  • the diameter of the aperture in plate 16 be greater than the distance between the opposite curved edge portions 12 of the stopper head, it is also preferred that the distance between the inner faces of strips 17 at a point short of grooves 22 be substantially equal to the distance between these curved edges. Likewise, it is preferred that the inner faces of the strips or legs be transversely curved along a radius substantially equal to that defining the arcuate surfaces 12. Accordingly, as the tube assembly or structure is projected through the aperture in plate 16 or the holder, these curved edges 12 will engage with the inner faces of the strips 17. Due to the compressible nature of the stopper, it may be so projected to a point where its curved edge portions 12 are within the zone of grooves 22, into which the stopper head will expand as in FIG. 3.
  • the alignment of the evacuated tube will have been maintained during the projection of the latter to the zone of grooves 22, after which it will be retained against accidental displacement. Projection beyond this point will be prevented incident to the height of the forward walls defining the grooves, or in other Words, the thickened portions 23 of the holder. Accordingly, even if the tube assembly is somewhat carelessly handled, the head of the stopper engaging the forward side-wall surfaces of the grooves will be prevented from further projection.
  • the tube may now be projectedto the position shown in FIG. 4, at which the head of the stopper bears against the end member 18.
  • the inner end of the cannula extends beyond the stopper into the tube bore. Therefore, aside from venous pressure, the vacuum within the tube interior will assist in the aspirating of blood through the lumen of the needle into the tube to fill the latter to the desired extent.
  • the tube may be retracted to the position shown in FIG. 3 or else may be entirely withdrawn from the holder and the outer end of the cannula Withdrawn from the vein of the donor.
  • the holder includes a tubular body 25 having its forward end closed as at 26. That end mounts a cannula 11 as previously described.
  • the holder 25 is provided with inwardly extending portions or steps 27, as especially shown in FIG. 9. These are disposed at diametrically opposite points Within the bore of the holder and are spaced a distance less than the distance between the curved edge surfaces 12 of the stopper head. Accordingly, as the latter is projected in line with them, they will act as stops to arrest inward movement of the tube. This will establish a condition such as has been shown in FIG. 8 and corresponds to the condition illustrated in FIG. 3.
  • the physician or other user will proceed to introduce the outer end of the cannula into a vein of the donor. Following this, by rotating tube edge portions 12 will be shifted substantially 90.
  • the distance between the inwardly extending parts 27 is less than the distance between the flattened faces 13 of the stop- I per. Therefore, the operator may now proceed to further project the tube groupings to a position corresponding to that illustrated in FIG. 4, with the same results as prevailed and were previously described in connection with the earlier figure.
  • the cannula is Withdrawn from the donors vein and the tube is retracted to free it from the holder. 7
  • a blood collecting assembly including, in combination a rigid tube having one end closed and a pierceable stopper sealing its opposite end to maintain a condition of vacuum within its interior, a holder defining an axially extending bore slideably receiving said opposite tube end and the stopper carried thereby, a cannula mounted by the forward end of said holder and having a stopper-piercing point extending into the bore of the latter, and stop means forming a fixed part of said holder projecting into said bore and arresting the sliding movement of said tube at a Zone short of that at which the piercing end of the cannula penetrates through said stoper, the stopper having a radial extension included therein providing the part engaged by said stop means, said extension having a length greater than the transverse dimension of the holder bore within the zone of said stop means and a width less than such dimension.
  • a holder defining an axially extending bore slideably receiving said opposite tube end and the stopper carried thereby, a cannula mounted by the forward end of said holder and having a stopper-piercing point extending into the bore of the latter, stop means forming a fixed part of said holder and providing an obstruction extending from its bore surface to arrest the sliding movement of said tube at a Zone short of that at which the piercing end of the cannula penetrates through said stopper, said stop means engaging the stopper of said tube structure, said structure being rotatable within said bore to cause such stopper to extend to one side of said stop means whereby said tube structure is further slideable to a position at which its stopper is disposed adjacent the forward end of the holder with the piercing point of the needle penetrating through said stopper into the tube interior, said holder being formed with relatively recessed bore surfaces and said stopper having extended portions keying into said recessed surfaces to prevent relative rotation of the holder with respect to the tube and to guide such

Description

2 Sheets-Sheet 1 ArraRA AYs July 21, 1964 P. P. TSOCHATZOPOULOS BLOOD. COLLECTING ASSEMBLY Filed 'July 7. 1961 5 w 3 6 5 y m U 44d m M F 2 mm a. m
5 flag L m. d. 4 a Y y 21, 1964 P. P. TSOCHATZOPOULOS 3,141,460
BLOOD COLLECTING ASSEMBLY Filed July '7. 1961 2 Sheets-Sheet 2 zaJ" - INVENTOR. Flor/05 7566194724100405 1477' dE/VE 7S United States Patent 3,141,460 BLOQD CGLLEQTING ASSEMBLY Photios Paul Tsochatzopou'ios, Rutherford, N.J., assignor to Becton, Dickinson and Company, Rutherford, N..i., a corporation of New .Iersey Filed July 7, 1961, Ser. No. 122,513 3 Claims. (Cl. 128-276) This invention relates to a structurally and functionally improved blood collecting assembly, and in its more specific aspect aims to provide an assembly of alternate and/or improved type over that disclosed in the prior United States patent to Joseph I. Kleiner 2,460,641 of February 1, 1949.
It is an object of the invention to furnish an assembly which may be efiiciently operated by a person lacking mechanical skill.
A further object is that of furnishing an assembly involving components of improved design.
Still another object is that of designing an apparatus which will include relatively few parts, each individually rugged and simple in construction and capable of economical production and in which those parts may be readily grouped together to furnish a unitary and cooperating structure.
With these and other objects in mind, reference is had to the attached sheets of drawings illustrating practical embodiments of the invention and in which FIG. 1 is an exploded perspective view of the parts embraced in one form of the assembly;
FIG. 2 is an end view thereof;
FIG. 3 is a sectional side view taken along the line 33 in the direction of the arrows of FIG. 2;
FIG. 4 is a fragmentary view similar to FIG. 3 but showing the parts in a different position;
FIG. 5 is a transverse sectional View taken along the line 55 in the direction of the arrows as indicated in FIG. 3; 7
FIG. 6 is a similar view but showing the parts shifted to a different position;
FIG. 7 is a fragmentary enlarged sectional side view of the forward end of the holder;
FIG. 8 is a fragmentary sectional side view similar to FIG. 3 but showing an alternative structure; and
FIG. 9 is a transverse sectional view taken along the line 99 in the direction of the arrows as indicated in FIG. 8.
Referring to FIGS. 1-3, the numeral 10 indicates a tube conveniently formed of glass and having a closed rear end 11. Its opposite end is open but sealed by a stopper. The interior of the tube is under a condition of vacuum. The stopper will preferably include a head portion embracing rounded end edges 12 and side edges 13 intervening the same. As illustrated, side edges 13 are fiat. However, such edges may alternatively have a slightly oval shape. Integral with this head portion is a plug 14 which is conveniently formed with a groove 14' adjacent the zone of juncture with the head and may be counterbored as at 15. The stopper is formed of resi ient material such as rubber and is forced into seating contact with the bore face of the tube so as to be under a condition of compression such that the vacuum within the interior of that tube is maintained.
The holder will include a rear or inner plate 16 formed with an aperture the diameter of which is such that the head of the stopper will freely pass therethrough. Extending forwardly or outwardly from plate 16 in line with the edge of its aperture and at opposite points therein are strips or legs 17. These elements converge towards each other and mount at their forward ends a bridging strip 18. The latter, on its outer face, may support a hub or tip 19 perforated for the passage of a cannula there- 3,141,460 Patented July 21, 1964 through. That cannula will embrace a body 20 having a suitable piercing outer end (not shown) and a stopper piercing inner end 21.
The inner end of the cannula extends into the bore of the holder, or, in other words, into the space between the strips or legs 17. Those legs are provided with grooves 22 in their inner faces. With the illustrated proportions of the parts those grooves will lie in a plane beyond the stopper-piercing end 21 of the cannula. Outwardly of grooves 22, strips 17 may be thickened as indicated at 23 so that the forward side-wall faces of the grooves will be of a height greater than the corresponding rear faces.
While it is preferred that the diameter of the aperture in plate 16 be greater than the distance between the opposite curved edge portions 12 of the stopper head, it is also preferred that the distance between the inner faces of strips 17 at a point short of grooves 22 be substantially equal to the distance between these curved edges. Likewise, it is preferred that the inner faces of the strips or legs be transversely curved along a radius substantially equal to that defining the arcuate surfaces 12. Accordingly, as the tube assembly or structure is projected through the aperture in plate 16 or the holder, these curved edges 12 will engage with the inner faces of the strips 17. Due to the compressible nature of the stopper, it may be so projected to a point where its curved edge portions 12 are within the zone of grooves 22, into which the stopper head will expand as in FIG. 3.
,head are aligned with strips 17 and projected forward through aperture 16 into the holder. This projection will continue until the curved edge portions 12 slideably en gage the inner faces of the legs or strips 17 and, due to the converging of the latter, are slightly compressed by the same. Thereupon, the head of the stopper will ride into the spaces defined by grooves 22 within which it will expand. The dimensions of the parts should preferably be such that under this expansion the adjacent edges on the stopper head yieldingly bear to a slight extent against the base portions of grooves 22.
Therefore, the alignment of the evacuated tube will have been maintained during the projection of the latter to the zone of grooves 22, after which it will be retained against accidental displacement. Projection beyond this point will be prevented incident to the height of the forward walls defining the grooves, or in other Words, the thickened portions 23 of the holder. Accordingly, even if the tube assembly is somewhat carelessly handled, the head of the stopper engaging the forward side-wall surfaces of the grooves will be prevented from further projection.
Accordingly, a condition as shown in FIG. 3 is established. Under this, the inner stopper penetrating end 21 of the cannula is embedded and sealed within the body of the stopper material. Therefore, no communication is established between the interior of the tube and the lumen of the cannula, so that the condition of vacuum within that tube will be maintained. With the assembly employed for blood collecting purposes, the operator Will now grasp the holder and introduce the outer end of the cannula into the vein of a donor. Following this, the tube portion of the assembly will be axially rotated through Accordingly, the curved edge portions 12 will slide out of engagement with the base surfaces of grooves 22, or, in other words, shift from the locked position shown in FIG. 5 to an unlocked position as illustrated in FIG. 6.
snaraeo iii In the latter view, it will be apparent that the distance between the flattened side faces 13 of the stopper head is less than the distance between the legs or strips 17 in their zone 23 of thickening. Accordingly, the tube may now be projectedto the position shown in FIG. 4, at which the head of the stopper bears against the end member 18. Under those circumstances, the inner end of the cannula extends beyond the stopper into the tube bore. Therefore, aside from venous pressure, the vacuum within the tube interior will assist in the aspirating of blood through the lumen of the needle into the tube to fill the latter to the desired extent. Thereupon, the tube may be retracted to the position shown in FIG. 3 or else may be entirely withdrawn from the holder and the outer end of the cannula Withdrawn from the vein of the donor.
The same result is achieved by the alternativestructure shown in FIGS. 8 and 9. In the former figure it will be seen that the holder includes a tubular body 25 having its forward end closed as at 26. That end mounts a cannula 11 as previously described. In the same relative position as grooves 22 of the earlier form, the holder 25 is provided with inwardly extending portions or steps 27, as especially shown in FIG. 9. These are disposed at diametrically opposite points Within the bore of the holder and are spaced a distance less than the distance between the curved edge surfaces 12 of the stopper head. Accordingly, as the latter is projected in line with them, they will act as stops to arrest inward movement of the tube. This will establish a condition such as has been shown in FIG. 8 and corresponds to the condition illustrated in FIG. 3.
Thereupon, the physician or other user will proceed to introduce the outer end of the cannula into a vein of the donor. Following this, by rotating tube edge portions 12 will be shifted substantially 90. The distance between the inwardly extending parts 27 is less than the distance between the flattened faces 13 of the stop- I per. Therefore, the operator may now proceed to further project the tube groupings to a position corresponding to that illustrated in FIG. 4, with the same results as prevailed and were previously described in connection with the earlier figure. Following the collecting of the desired quantity of blood, the cannula is Withdrawn from the donors vein and the tube is retracted to free it from the holder. 7
In both forms of apparatus it will be understood that as this retraction occurs the aperture formed by the cannula incident to its penetrating the stopper will be closed due to the self-sealing function of the stopper inherent to its resiliency. It is also apparent that while the present teachings are of especial utility when employed in the collecting of blood and have been so described and claimed, that the apparatus may be used to advantage in withdrawing or collecting other liquids. Therefore, the word blood is used in a definitive, rather than a limiting, sense.
Thus, among others, the several objects of the invention as specifically aforenoted are achieved. Obviously, numerous changes in construction and rearrangements of the parts may be resorted to without departing from the spirit of the invention as defined by the claims.
What I claim is:
1. A blood collecting assembly including, in combination a rigid tube having one end closed and a pierceable stopper sealing its opposite end to maintain a condition of vacuum within its interior, a holder defining an axially extending bore slideably receiving said opposite tube end and the stopper carried thereby, a cannula mounted by the forward end of said holder and having a stopper-piercing point extending into the bore of the latter, and stop means forming a fixed part of said holder projecting into said bore and arresting the sliding movement of said tube at a Zone short of that at which the piercing end of the cannula penetrates through said stoper, the stopper having a radial extension included therein providing the part engaged by said stop means, said extension having a length greater than the transverse dimension of the holder bore within the zone of said stop means and a width less than such dimension.
terior, a holder defining an axially extending bore slideably receiving said opposite tube end and the stopper carried thereby, a cannula mounted by the forward end of said holder and having a stopper-piercing point extending into the bore of the latter, stop means forming a fixed part of said holder and providing an obstruction extending from its bore surface to arrest the sliding movement of said tube at a Zone short of that at which the piercing end of the cannula penetrates through said stopper, said stop means engaging the stopper of said tube structure, said structure being rotatable within said bore to cause such stopper to extend to one side of said stop means whereby said tube structure is further slideable to a position at which its stopper is disposed adjacent the forward end of the holder with the piercing point of the needle penetrating through said stopper into the tube interior, said holder being formed with relatively recessed bore surfaces and said stopper having extended portions keying into said recessed surfaces to prevent relative rotation of the holder with respect to the tube and to guide such structure in its movement into said holder and restrain it against axial rotation with respect to the latter.
References Cited in the file of this patent UNITED STATES PATENTS 2,371,086 Watson et a1 Mar. 6, 1945 2,460,641 Kleiner Feb. 1, 1949 2,676,591 Fox Apr. 27, 1954 2,695,613 MacGregor Nov. 30, 1954 2,834,346 Adams May 13, 1958 2,876,775 Barr et al Mar. 10, 1959 2,880,723 Adams Apr. 7, 1959 3,074,541 Roehr Jan. 22, 1963

Claims (1)

1. A BLOOD COLLECTING ASSEMBLY INCLUDING, IN COMBINATION A RIGID TUBE HAVING ONE END CLOSED AND A PIERCEABLE STOPPER SEALING ITS OPPOSITE END TO MAINTAIN A CONDITION OF VACUUM WITHIN ITS INTERIOR, A HOLDER DEFINING AN AXIALLY EXTENDING BORE SLIDEABLY RECEIVING SAID OPPOSITE TUBE END AND THE STOPPER CARRIED THEREBY, A CANNULA MOUNTED BY THE FORWARD END OF SAID HOLDER AND HAVING A STOPPER-PIERCING POINT EXTENDING INTO THE BORE OF THE LATTER, AND STOP MEANS FORMING A FIXED PART OF SAID HOLDER PROJECTING INTO SAID BORE AND ARRESTING THE SLIDING MOVEMENT OF SAID TUBE AT A ZONE SHORT OF THAT AT WHICH THE PIERCING END OF THE CANNULA PENETRATES THROUGH SAID STOPPER, THE STOPPER HAVING A RADIAL EXTENSION INCLUDED THEREIN PROVIDING THE PART ENGAGED BY SAID STOP MEANS, SAID EXTENSION HAVING A LENGTH GREATER THAN THE TRANSVERSE DIMENSION OF THE HOLDER BORE WITHIN THE ZONE OF SAID STOP MEANS AND A WIDTH LESS THAN SUCH DIMENSION.
US122513A 1961-07-07 1961-07-07 Blood collecting assembly Expired - Lifetime US3141460A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
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US3366103A (en) * 1965-06-24 1968-01-30 Becton Dickinson Co Blood collecting assembly
US3369708A (en) * 1965-09-07 1968-02-20 Lincoln Lab Inc Means for reconstituting a dry biological and for controlled dispensing thereof
US3395696A (en) * 1965-06-22 1968-08-06 Roehr Products Inc Physiological fluid transfer apparatus
US3495591A (en) * 1967-05-08 1970-02-17 Charles J Wilson Method for administering injectable liquids
US3958572A (en) * 1974-12-16 1976-05-25 Corning Glass Works Blood collecting and separating assembly stopper
US4893636A (en) * 1988-03-09 1990-01-16 Sherwood Medical Company Medical container stopper
US4927605A (en) * 1987-04-22 1990-05-22 Wadley Technologies, Inc. Specimen collection and sampling container
USD650067S1 (en) 2002-10-16 2011-12-06 Medical Instill Technologies, Inc. Dispenser
USD834177S1 (en) * 2016-02-10 2018-11-20 Exploramed Nc7, Inc. Flex conduit for a breast pump
WO2020061075A1 (en) * 2018-09-17 2020-03-26 Velano Vascular, Inc. Systems, apparatus, and methods for preventing contamination of a blood draw system
RU2800887C2 (en) * 2018-09-17 2023-07-31 Велано Васкулар, Инк. Systems, device and methods for preventing blood collection system contamination

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US2371086A (en) * 1940-11-14 1945-03-06 Watson Hypodermic injector
US2460641A (en) * 1945-08-14 1949-02-01 Joseph J Kleiner Blood collecting apparatus
US2676591A (en) * 1951-03-27 1954-04-27 Fox Dorothy Brown Hypodermic unit
US2695613A (en) * 1953-02-16 1954-11-30 Macgregor Instr Company Carpule and needle attaching mount therefor
US2834346A (en) * 1955-06-06 1958-05-13 Becton Dickinson Co Syringe and hub locking assembly
US2876775A (en) * 1955-10-03 1959-03-10 Sr Courtland H Barr Blood sample collection apparatus
US2880723A (en) * 1954-02-09 1959-04-07 Becton Dickinson Co Syringe assembly
US3074541A (en) * 1959-10-13 1963-01-22 Brunswick Corp Medicinal vial and needle assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2371086A (en) * 1940-11-14 1945-03-06 Watson Hypodermic injector
US2460641A (en) * 1945-08-14 1949-02-01 Joseph J Kleiner Blood collecting apparatus
US2676591A (en) * 1951-03-27 1954-04-27 Fox Dorothy Brown Hypodermic unit
US2695613A (en) * 1953-02-16 1954-11-30 Macgregor Instr Company Carpule and needle attaching mount therefor
US2880723A (en) * 1954-02-09 1959-04-07 Becton Dickinson Co Syringe assembly
US2834346A (en) * 1955-06-06 1958-05-13 Becton Dickinson Co Syringe and hub locking assembly
US2876775A (en) * 1955-10-03 1959-03-10 Sr Courtland H Barr Blood sample collection apparatus
US3074541A (en) * 1959-10-13 1963-01-22 Brunswick Corp Medicinal vial and needle assembly

Cited By (15)

* Cited by examiner, † Cited by third party
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