US3402713A - Hypodermic syringe with improved retaining means - Google Patents

Hypodermic syringe with improved retaining means Download PDF

Info

Publication number
US3402713A
US3402713A US455548A US45554865A US3402713A US 3402713 A US3402713 A US 3402713A US 455548 A US455548 A US 455548A US 45554865 A US45554865 A US 45554865A US 3402713 A US3402713 A US 3402713A
Authority
US
United States
Prior art keywords
hub
hypodermic
needle
collar
nozzle
Prior art date
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
Application number
US455548A
Other languages
English (en)
Inventor
Thaddeus S Senkowski
Joseph T Welch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Priority to US455548A priority Critical patent/US3402713A/en
Priority to GB12050/66A priority patent/GB1086763A/en
Priority to BE679509D priority patent/BE679509A/xx
Priority to NL6605672A priority patent/NL6605672A/xx
Priority to DE19661491653 priority patent/DE1491653B1/de
Application granted granted Critical
Publication of US3402713A publication Critical patent/US3402713A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/16—Screw-threaded joints
    • 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
    • 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
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B29C37/0014—Discharging moulded articles from the mould by flexibly or permanently deforming undercut portions of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2618—Moulds having screw-threaded mould walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads

Definitions

  • a one piece molded plastic hypodermic unit for use with a needle of the type comprising a cannula supported in a hub provided with radially outwardly extending flanges.
  • the hypodermic unit includes a relatively flexible internally threaded retaining collar projecting forwardly from one end for receiving and retaining the hub.
  • the collar threads have a forward sidew-all substantially perpendicular to the longitudinal axis of the collar for guiding the hub into a locking position and a rear sidewall forming an. acute angle with the longitudinal axis for cooperating with the internal surfaces of the collar to retain the hub in place.
  • This invention relates to an improved hypodermic unit mount for detachably connecting a cannula and hub assembly to the hypodermic unit embodying an all plastic disposable construction and to an improved method of manufacturing the same.
  • the present application will be devoted primarily to a hypodermic unit encompassing an integral one piece syringe barrel construction. It should be understood, however, that the present invention contemplates the application of our improved mount to other types of hypodermic units to which a detachable needle and hub assembly may be applied, including other hypodermic syringes, blood donor assemblies, cartridge holders, ampoules and the like.
  • a hypodermic unit be provided with a detachable cannula.
  • reusable, resterilizable glass syringe assemblies the prob-- lem of providing for a detachably retained cannula has been solved in a superior fashion with the Luer-Lok type mount.
  • the provision of such a mount heretofore to an all plastic disposable hypodermic unit has not been economically feasible or practical for a number of reasons which would render the cost of the unit exorbitantly high.
  • Another object of our invention is to provide a hypodermic unit having a mount of this type capable of receiving a detachably retained hub and needle assembly so as to form a circumferential line sealing contact between the needle and hub assembly and nozzle of the needle mount.
  • Our invention contemplates the provision of an all plastic hypodermic unit made in one piece having a so porting portion at one end thereof, and a bored nozzle projecting forwardly from the supporting portion providing a Luer taper and being adapted to be sealingly engaged by the internally tapered hub of a hypodermic needle assembly.
  • a retaining collar also projects forwardly from the supporting portion in concentric relationship with the tip and is spaced radially therefrom a distance large enough toaccommodate the extended flange portions of the hub.
  • the retaining collar is provided with a selected degree of flexibility and elasticity to permit internal threads formed thereon to be readily stripped 3,402,713 Patented Sept. 24, 1968 from the mold faces during the molding cycle.
  • the configuration of the side surfaces (the surfaces of the threads on the side of the barrel supporting portion) of the threads is selected to form camming surfaces which are adapted to be readily disengaged by longitudinally shifting these surfaces permitted by the flexibility and elasticity of the collar.
  • FIG. 1 is a side elevation of a hypodermic syringe assembly embodying our invention
  • FIG. 2 is a fragmentary detailed view on an enlarged scale of the needle mount portion of the assembly
  • FIG. 3 is a horizontal cross-sectional view of the needle mount in the direction of the arrows on line 33 of FIG. 2;
  • FIG. 4 is an end view of the hypodermic syringe with the needle assembly detached showing the open end of the needle mount;
  • FIG. 5 is a view similar to FIG. 4 showing the needle hub in position to be applied to the needle mount;
  • FIG. 6 is a fragmentary sectional view in the direction of the arrows on line 66 of FIG. 5;
  • FIG. 7 is a view in cross section showing the needle mount and supporting portion of the hypodermic unit and the corresponding portions of the mold in which it may be made and showing a typical thread configuration whereby the needle mount may be stripped from the mold;
  • FIG. 8 is a view similar to FIG. 7 showing the initial phase of removing or stripping the syringe assembly from the mold without the necessity of unscrewing the threads;
  • FIG. 9 is a view similar to FIG. 7 showing the removal procedure in an advanced stage after the stripping operation has been completed;
  • FIG. 10 is a view similar to FIG. 7 showing the removal of the hypodermic unit from the mold
  • FIG. 11 is a Side elevation partly in section showing an embodiment wherein circumferential line contact between the hub and tip is made in one position;
  • FIG. 12 is a view similar to FIG. 11 showing the preferred circumferential line contact position between the hub and tip.
  • Our improved mount for detachably connecting a cannula and hub assembly to a hypodermic unit has applications to all types of plastic hypodermic units to which a detachable needle and hub assembly may be applied. As indicated hereinbefore, we have shown for purposes of illustration the use of our mounting in a hypodermic syringe 10.
  • the syringe comprises a barrel 12 having a bore 14 of relatively uniform diameter and may be made of any suitable plastic material that is relatively flexible and inert and impervious to the liquids, such as medication and blood with which it may come in contact.
  • Polyethylene, polytetrafluoroethylene, polychlorotrifluoroethylene, polypropylene, polymers and copolymers of vinyl chloride are all suitable materials. We prefer to use polypropylene.
  • the barrel is preferably transparent or translucent so that materials therein can be readily observed.
  • the barrel is open at its outer end 16 and may be generally tapered as shown in FIGS. 2 and 3 at its inner end 18. Integrally connected to the outer end of the barrel is a finger engaging flange 20.
  • a plunger 22 is provided for the bore of the barrel to permit aspiration and expulsion of medicaments.
  • the hypodermic needle assembly 24 is of conventional configuration. It comprises a cannula 26 suitably mounted as by epoxy resin in a hub 28.
  • the cannula may be made 3 of any suitable metal such as steel, particularly stainless steel which is inert to the materials with which it may come in contact, such as blood or medication.
  • the hub 28 is made of a relatively rigid thermoplastic material also inert to and impervious to the materials with which it may come in contact. Suitable plastic materials are acetal resin, polypropylene, polystyrene, polyamide, cellulose acetate or the polymers or copolymers of vinyl chloride.
  • the hub is generally of a tubular configuration and is provided with a tapered bore 30 of generally larger diameter at the open outer end 32 of the hub than at the needle end thereof. Projecting laterally from the open outer end of the hub are diametrically opposed flange portions 34A and 34B.
  • the hub assembly may be readily applied to the mount and readily removed from the mount but when in position thereon, it is effectively free from leakage at the point of connection between the hub assembly and needle mount and remains firmly in position when the hypodermic syringe is in use.
  • Our improved mounting for a hypodermic unit com prises a supporting portion formed at the inner end 18 of the barrel 12.
  • the supporting portion is inwardly tapered and a nozzle 36 projects therefrom.
  • An interior bore 38 is in communication with the barrel at the inner end 18 and is opened at its opposite end.
  • the nozzle has a conical or tapered exterior profile and is of a size such that i twill have a sealing engagement with the inner bore surface of the hub 28 when the latter is mounted.
  • a retaining collar 40 projects forwardly from the supporting portion 15 of the barrel in spaced concentric relationship with the nozzle 36.
  • the collar portion is spaced from the nozzle a distance sufficient to accommodate the diametrically opposed flange portions 34a and 34b extending later-ally from the open outer end of the hub 28 of the hub and needle assembly.
  • Our invention provides for the inclusion of a plurality of diametrically opposed helical threads 42a and 42b (as shown most clearly in FIG. 2) extending around the inner surface of the retaining collar acting as cams for frictional engagement with the diametrically opposed flange portions 34a and 34b of the hub 28.
  • the outer side walls 44a and 44b of the threads 42a and 42b namely those surfaces facing away from the supporting portions serve as guiding surfaces for the flanged portions of the hub and needle assembly as said assembly is inserted into the needle mount as seen most clearly in FIG. 6.
  • the opposite walls 46a and 46b facing towards the supporting portion serves to assist in retaining the hub and needle assembly in position by retaining the flange portions 34a and 34b thereof in a frictionally compressed relationship with the collar and nozzle of the barrel.
  • Side walls 44a and 44b will be hereinafter referred to as the guiding surfaces and side walls 460! and 46b will be hereinafter referred to as the retaining surfaces.
  • any workable number of threads may be used, we prefer a thread arrangement of the double thread type which includes two separate or single threads starting at diametrically opposite points or at points 180 apart.
  • the threads should have a root (the distance measured at the groove or bottom surface 48 joining the sides of two adjacent threads) suflicient to accommodate the opposed flange portions of the hub, and to permit movement therein.
  • the threads are of a truncated type and accordingly do not reach an apex. This cooperates in facilitating the stripping of the mount.
  • the needle mount can be satisfactorily stripped from the mold by means of a camming action, and thereafter assured adequate retaining support for the detachable needle assembly, if the retaining surface forms an angle to the longitudinal axis of the needle mount of between 25 and 70.
  • the needle mount can be satisfactorily stripped from the mold if the height of the threads is maintained at about between .004. and .012 inch. If the height is maintained within the range, the threads will provide adequate guiding and retaining surfaces for the hub and needle assembly. However, for the indicated material we prefer to maintain the height of the thread at about .009 inch.
  • the circumferential line contact is made between the forward end of the nozzle 36 and the inner end of the bore surface 30 of the hub to provide minimum circumferential line contact. It will be noted that surface contact in an arrangement such as this is not had between the entire length of the nozzle and'the inner bore surface. The same principles are applied and shown in FIG. 12, only in this situation line cont-act is made between the rear end of the nozzle and the open end of the hub and needle assembly. While stresses are less in this arrangement than in that described in relation to FIG. 11, the results are still superior to the complete snrface-to-surface contact of the prior art devices. Circumferential line contact may be achieved by varying the external tapered profile of the nozzle 36 of the barrel or the internal taper of the hub with respect to each other so as to provide circumferential line contact at the desired point.
  • the hub and needle assembly are placed intothe lead of the needle mount and screwed into position.
  • the diametrically opposed flange portions of the hub are guided by the outer thread side wall in their movement into position within the needle mount and final rotation of the hub and needle assembly creates the desired line contact and accordingly, the necessary stability.
  • the hub and needle assembly is retained in position in the needle mount by cooperation of frictional forces exerted between it and the nozzle and collar portions of the mount.
  • the diametrically opposed flange portions of the hub are compressed when in position by the inner surface of the collar portion, thus creating additional tension and stress on the parts and are also retained in position by the inner side walls of the threads appearing on the inner surface of the collar portion.
  • a three-part mold as indicated in FIGS. 7, 8 and 9, is utilized wherein the first part is an outer cavity insert 60, the second part being the internal diameter core pin 62 and the third part is the threaded core pin 64.
  • the cavity insert '60 is formed so as to have a barrel portion 66 complementary in configuration with the outer surface of the barrel 12 and a collar portion 68 conforming in size and complementary in configuration with the exterior surface of the collar 40.
  • the second part, or internal diameter core pin 62 is assembled and is arranged so as to conform to the internal configuration of the bore of the barrel and nozzle thereof and is assembled with the mold in spaced relationship from the barrel portion 66 of the cavity to provide the desired thickness for the barrel.
  • a threaded core pin 64 is provided which has an inner surface conforming in dimensions and complementary in configuration with the exterior surface of the nozzle 36 and an outer surface conforming in dimensions and complementary in configuration with the desired inner surface of the collar, said outer surface of the threaded core being formed with radially outwardly projecting threads 70.
  • the threads conform in dimension and are complementary in configuration with the desired threads to be formed on the inner surface of the collar and have one side surface facing away from the support portion of the cavity disposed at an angle presenting a camming surface and an opposite side surface disposed at a relatively steep angle to the longitudinal axis of the core.
  • the threaded core pin 64 is placed into position within the mold in spaced relationship from the collar portion of the cavity 60.
  • the mold is entirely closed in the manner as indicated in FIG. 7 wherein the parts including the cavity 60, the internal diameter core pin 62 and the threaded core pin 64, are arranged as shown to define a cavity into which the selected molten plastic material may be injected.
  • a cooling part of the cycle follows in which the plastic material is allowed to set up and become solidified so as to form the barrel 12.
  • the parts are then shifted into the position depicted in FIG. 8.
  • the cavity insert is moved in the direction of the arrows as indicated in FIG. 8 so that the collar portion 68 of the cavity insert 60 is retracted relative to the collar 40.
  • hypodermic units other than those of the barrel type, may be utilized with our improved needle mount.
  • hypodermic units include hypodermic syringes, blood donor assemblies, ampoules and the like.
  • an all plastic hypodermic unit having an improved mount for detachably connecting a cannula and hub assembly of the Luer-Lok type and an improved molding method of making the assembly wherein the assembly can be made easily and economically without impairing the desired performance of the unit.
  • the unit may be automatically stripped from a mold without the necessity of unscrewing according to the teachings of our invention.
  • a hypodermic assembly comprising in combination: a replaceable needle assembly of the type having a cannula together with hub having a bore forming an outwardly tapered surface leading to an open outer end and diametrically opposed flange portions extending radially from said outer end and having a diameter which is at least equal to the hereinafter defined root diameter; and a one-piece integrally molded plastic hypodermic unit having a supporting portion formed thereon, a nozzle having an internal bore and an exterior tapered surface, said surfaces interacting to form approximately a circumferential line sealing contact when the supporting hub is mounted on the nozzle thereby providing sealing engagement between the same and assisting in stabilizing the hub on said nozzle, and a retaining collar projecting forwardly from the supporting portion in concentric relation ship with the nozzle and spaced therefrom a distance substantially large enough to accommodate the extended radial flange portions of the hub and cooperate in retaining said flange portions by frictionally and compressively engaging therewith, said retaining collar having a wall thickness which in and of itself with
  • hypodermic assembly as defined in claim 1 wherein the helical threads extending around the inner surface of said retaining collar are substantially truncated in side elevation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
US455548A 1965-05-13 1965-05-13 Hypodermic syringe with improved retaining means Expired - Lifetime US3402713A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US455548A US3402713A (en) 1965-05-13 1965-05-13 Hypodermic syringe with improved retaining means
GB12050/66A GB1086763A (en) 1965-05-13 1966-03-18 Improved hypodermic assembly and method of making the same
BE679509D BE679509A (enrdf_load_stackoverflow) 1965-05-13 1966-04-14
NL6605672A NL6605672A (enrdf_load_stackoverflow) 1965-05-13 1966-04-28
DE19661491653 DE1491653B1 (de) 1965-05-13 1966-04-30 Injektionsspritze und Vorrichtung zur Herstellung ihres Spritzenkoerpers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455548A US3402713A (en) 1965-05-13 1965-05-13 Hypodermic syringe with improved retaining means

Publications (1)

Publication Number Publication Date
US3402713A true US3402713A (en) 1968-09-24

Family

ID=23809269

Family Applications (1)

Application Number Title Priority Date Filing Date
US455548A Expired - Lifetime US3402713A (en) 1965-05-13 1965-05-13 Hypodermic syringe with improved retaining means

Country Status (5)

Country Link
US (1) US3402713A (enrdf_load_stackoverflow)
BE (1) BE679509A (enrdf_load_stackoverflow)
DE (1) DE1491653B1 (enrdf_load_stackoverflow)
GB (1) GB1086763A (enrdf_load_stackoverflow)
NL (1) NL6605672A (enrdf_load_stackoverflow)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507279A (en) * 1969-05-29 1970-04-21 Becton Dickinson Co Hypodermic needle supporting hub
US3673302A (en) * 1967-01-09 1972-06-27 Globe Union Inc Method for fabricating battery cases
US3899567A (en) * 1974-08-12 1975-08-12 Gerald W Gorman Method of manufacturing dynamic pressure seal
US4127632A (en) * 1975-07-29 1978-11-28 Anton Anger Maschinenbau Gmbh Method of producing undercut tubular synthetic plastic articles
US4187272A (en) * 1976-10-01 1980-02-05 The Bendix Corporation Method of making molded electrical connector insert
US4209485A (en) * 1977-05-03 1980-06-24 Greenspan Donald J Method of making a valve apparatus
US4220151A (en) * 1978-09-20 1980-09-02 Sherwood Medical Industries Inc. Disposable Luer lock syringe
US4240422A (en) * 1978-10-23 1980-12-23 American Hospital Supply Corporation Syringe with needle and method of attaching same
US4589871A (en) * 1985-03-29 1986-05-20 Becton, Dickinson And Company Syringe barrel
US4629455A (en) * 1984-02-09 1986-12-16 Terumo Kabushiki Kaisha Medical instrument
US4709757A (en) * 1986-11-24 1987-12-01 Johnson Service Company Method of injection molding and plastic part formed thereby
EP0226718A3 (en) * 1985-12-13 1988-06-08 Becton, Dickinson And Company Parenteral fluid administration set
EP0378047A1 (de) * 1988-12-07 1990-07-18 Claropac Ag Verfahren zum Herstellen eines Hohlkörpers mit einem einstückig angeformten Tropfenfänger
US4983346A (en) * 1985-11-12 1991-01-08 Mt. Vernon Plastics Corporation Method for molding a one-piece molded end closure
US4998926A (en) * 1985-12-13 1991-03-12 Becton, Dickinson And Company Parenteral fluid administration set
US5019045A (en) * 1988-03-28 1991-05-28 Lee Sang D Hypodermic syringe with a locking needle assembly and syringe combination
WO1994013338A1 (en) * 1992-12-14 1994-06-23 Mallinckrodt Medical, Inc. Prefilled syringe with break-away tip seal
US5405340A (en) * 1992-10-07 1995-04-11 Abbott Laboratories Threaded securing apparatus for flow connectors
US5409125A (en) * 1989-12-11 1995-04-25 Aktiebolaget Astra Unit dose container
US5624694A (en) * 1996-03-18 1997-04-29 Republic Tool & Mfg. Corp. Mold for making an internally threaded housing
EP0783950A1 (en) * 1996-01-09 1997-07-16 GB Electrical, Inc. Removal from the mold of injection-molded tie having strong pawl
EP0783952A1 (en) * 1996-01-09 1997-07-16 GB Electrical, Inc. Removal of injection-molded tie from mold by moving core disposed outside of abutment wall of tie
EP0783954A1 (en) * 1996-01-08 1997-07-16 GB Electrical, Inc. Removal of injection-molded tie from mold by utilizing staggered parting line
US5804123A (en) * 1992-10-21 1998-09-08 Huron Plastics Group, Inc. Method of making plastic part having parting line free O-ring groove for fluid outlet
US5833912A (en) * 1997-10-14 1998-11-10 Schweigert; Lothar Method of injection molding a container
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
US5919169A (en) * 1997-06-23 1999-07-06 Grams; Guenter Cannula lock and seal mechanism
US5958321A (en) * 1996-09-17 1999-09-28 Schoelling; Hans-Werner Process and apparatus for producing a tampon applicator for feminine hygiene
US20040049162A1 (en) * 2002-09-09 2004-03-11 Fisher Michael Alan Internal expansion syringe adaptor
US6767494B1 (en) * 2001-04-05 2004-07-27 Owens-Illinois Closure Inc. Method and apparatus for injection molding a threaded syringe plunger rod
US20040210196A1 (en) * 2001-07-27 2004-10-21 Bush Jr Charles L. Luer connector assembly
US20050108867A1 (en) * 1998-12-18 2005-05-26 Filter Technology Australia Pty Limited Filter cartridge and process
US20080033370A1 (en) * 2006-08-03 2008-02-07 Becton, Dickinson And Company Binary needle attachment mechanisms
EP1923086A1 (en) * 2006-11-15 2008-05-21 Arte Corporation Luer-lock type cylindrical tip of syringe
US20090171322A1 (en) * 2006-07-18 2009-07-02 Munehito Kurimoto Breakage Resistant Fitting
US20090239191A1 (en) * 2008-03-18 2009-09-24 Helmut Wurm Securing system
US20100145284A1 (en) * 2007-04-26 2010-06-10 Daikyo Seiko, Ltd. Needle-equipped syringe barrel needle-equipped syringe, and mold and method for molding same
US20110282298A1 (en) * 2008-12-09 2011-11-17 Nadav Agian Device for injecting fluid isolated from microneedle hub with dead-space-reducing insert
US20150123311A1 (en) * 2012-05-14 2015-05-07 Schottli Ag Method of producing a syringe barrel for medical purposes and device for carrying out said method
US20190299507A1 (en) * 2016-10-04 2019-10-03 Gerresheimer Regensburg Gmbh Method for producing a syringe with an integrated closure element
US20210252225A1 (en) * 2018-07-12 2021-08-19 Becton Dickinson France Glass Luer Tip with Marking and Method for Manufacturing the Same
CN114393773A (zh) * 2022-01-13 2022-04-26 辽宁工业大学 一种制作血管支架的便捷式注塑模具

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148316A (en) * 1977-08-29 1979-04-10 Stewart-Naumann Laboratories, Inc. Self-sealed hypodermic syringe
US4240428A (en) * 1978-10-23 1980-12-23 American Hospital Supply Corporation Segmented syringe locking sleeve
US4240424A (en) * 1978-10-23 1980-12-23 American Hospital Supply Corporation Syringe locking sleeve
DE3242359A1 (de) * 1981-12-08 1983-07-21 Smiths Industries Public Ltd. Co., London Filterbauteil
US4576594A (en) * 1984-07-26 1986-03-18 Warner-Lambert Company Vented drip chamber for use with a syringe
CN103862630A (zh) * 2014-03-20 2014-06-18 苏州鑫荣健身器材有限公司 一种吸尘器尖桶浇注模具
CN111923331B (zh) * 2020-07-14 2022-11-08 浙江长珑车灯股份有限公司 摩托车尾灯灯罩双色注塑模具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US881060A (en) * 1908-03-03 Crosby Steam Gage And Valve Company Valve.
US1916692A (en) * 1930-05-05 1933-07-04 Doonton Molding Company Molding of plastic articles
US2677374A (en) * 1952-11-07 1954-05-04 Lilly Co Eli Syringe closure
US2843508A (en) * 1953-09-29 1958-07-15 Matthew J Sheft Hypodermic syringe defreezing means and method
US2868201A (en) * 1954-03-08 1959-01-13 Gabriel Daniel Aspirating needle hub
US3055363A (en) * 1959-11-18 1962-09-25 Becton Dickinson Co Hypodermic syringe barrel assembly
US3301256A (en) * 1964-03-30 1967-01-31 Pharmaseal Lab Hypodermic syringe having improved needle hub retaining sleeve means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE818831C (de) * 1948-10-20 1951-10-29 Willi-Walter Baatz Injektionsspritze fuer AErzte
US2755801A (en) * 1952-05-09 1956-07-24 Becton Dickinson Co Needle mounting
DE1697461U (de) * 1952-07-17 1955-04-28 Feinmechanik Vorm Jetter & Sch Medizinische spritze.
US3179107A (en) * 1962-11-21 1965-04-20 Becton Dickinson Co Hypodermic unit with an improved mounting for a replaceable needle assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US881060A (en) * 1908-03-03 Crosby Steam Gage And Valve Company Valve.
US1916692A (en) * 1930-05-05 1933-07-04 Doonton Molding Company Molding of plastic articles
US2677374A (en) * 1952-11-07 1954-05-04 Lilly Co Eli Syringe closure
US2843508A (en) * 1953-09-29 1958-07-15 Matthew J Sheft Hypodermic syringe defreezing means and method
US2868201A (en) * 1954-03-08 1959-01-13 Gabriel Daniel Aspirating needle hub
US3055363A (en) * 1959-11-18 1962-09-25 Becton Dickinson Co Hypodermic syringe barrel assembly
US3301256A (en) * 1964-03-30 1967-01-31 Pharmaseal Lab Hypodermic syringe having improved needle hub retaining sleeve means

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673302A (en) * 1967-01-09 1972-06-27 Globe Union Inc Method for fabricating battery cases
US3507279A (en) * 1969-05-29 1970-04-21 Becton Dickinson Co Hypodermic needle supporting hub
US3899567A (en) * 1974-08-12 1975-08-12 Gerald W Gorman Method of manufacturing dynamic pressure seal
US4127632A (en) * 1975-07-29 1978-11-28 Anton Anger Maschinenbau Gmbh Method of producing undercut tubular synthetic plastic articles
USRE31404E (en) * 1975-07-29 1983-10-04 Osterreichische Schiffswerften Aktiengesellschaft Linz-Korneuburg Method of producing undercut tubular plastic articles
US4187272A (en) * 1976-10-01 1980-02-05 The Bendix Corporation Method of making molded electrical connector insert
US4209485A (en) * 1977-05-03 1980-06-24 Greenspan Donald J Method of making a valve apparatus
US4220151A (en) * 1978-09-20 1980-09-02 Sherwood Medical Industries Inc. Disposable Luer lock syringe
US4240422A (en) * 1978-10-23 1980-12-23 American Hospital Supply Corporation Syringe with needle and method of attaching same
US4629455A (en) * 1984-02-09 1986-12-16 Terumo Kabushiki Kaisha Medical instrument
US4589871A (en) * 1985-03-29 1986-05-20 Becton, Dickinson And Company Syringe barrel
US4983346A (en) * 1985-11-12 1991-01-08 Mt. Vernon Plastics Corporation Method for molding a one-piece molded end closure
EP0226718A3 (en) * 1985-12-13 1988-06-08 Becton, Dickinson And Company Parenteral fluid administration set
US4952210A (en) * 1985-12-13 1990-08-28 Becton, Dickinson And Company Parenteral fluid administration set
US4998926A (en) * 1985-12-13 1991-03-12 Becton, Dickinson And Company Parenteral fluid administration set
AU589880B2 (en) * 1986-11-24 1989-10-19 Johnson Service Company Method of injection molding and plastic part formed thereby
US4709757A (en) * 1986-11-24 1987-12-01 Johnson Service Company Method of injection molding and plastic part formed thereby
US5019045A (en) * 1988-03-28 1991-05-28 Lee Sang D Hypodermic syringe with a locking needle assembly and syringe combination
EP0378047A1 (de) * 1988-12-07 1990-07-18 Claropac Ag Verfahren zum Herstellen eines Hohlkörpers mit einem einstückig angeformten Tropfenfänger
CH676572A5 (enrdf_load_stackoverflow) * 1988-12-07 1991-02-15 Claropac Ag
US5409125A (en) * 1989-12-11 1995-04-25 Aktiebolaget Astra Unit dose container
US5405340A (en) * 1992-10-07 1995-04-11 Abbott Laboratories Threaded securing apparatus for flow connectors
US5804123A (en) * 1992-10-21 1998-09-08 Huron Plastics Group, Inc. Method of making plastic part having parting line free O-ring groove for fluid outlet
WO1994013338A1 (en) * 1992-12-14 1994-06-23 Mallinckrodt Medical, Inc. Prefilled syringe with break-away tip seal
EP0783954A1 (en) * 1996-01-08 1997-07-16 GB Electrical, Inc. Removal of injection-molded tie from mold by utilizing staggered parting line
EP0783950A1 (en) * 1996-01-09 1997-07-16 GB Electrical, Inc. Removal from the mold of injection-molded tie having strong pawl
EP0783952A1 (en) * 1996-01-09 1997-07-16 GB Electrical, Inc. Removal of injection-molded tie from mold by moving core disposed outside of abutment wall of tie
US5624694A (en) * 1996-03-18 1997-04-29 Republic Tool & Mfg. Corp. Mold for making an internally threaded housing
US5958321A (en) * 1996-09-17 1999-09-28 Schoelling; Hans-Werner Process and apparatus for producing a tampon applicator for feminine hygiene
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
US5919169A (en) * 1997-06-23 1999-07-06 Grams; Guenter Cannula lock and seal mechanism
US5833912A (en) * 1997-10-14 1998-11-10 Schweigert; Lothar Method of injection molding a container
US7731886B2 (en) * 1998-12-18 2010-06-08 Filter Technology Australia Pty Ltd. Method of manufacturing a filter cartridge
US20050108867A1 (en) * 1998-12-18 2005-05-26 Filter Technology Australia Pty Limited Filter cartridge and process
US6767494B1 (en) * 2001-04-05 2004-07-27 Owens-Illinois Closure Inc. Method and apparatus for injection molding a threaded syringe plunger rod
US7776018B2 (en) 2001-07-27 2010-08-17 Becton, Dickinson And Company Luer connector assembly
US8414560B2 (en) 2001-07-27 2013-04-09 Becton, Dickinson And Company Luer connector assembly
US20080039801A1 (en) * 2001-07-27 2008-02-14 Becton, Dickinson And Company Luer connector assembly
US20080039800A1 (en) * 2001-07-27 2008-02-14 Becton, Dickinson And Company Luer connector assembly
US20040210196A1 (en) * 2001-07-27 2004-10-21 Bush Jr Charles L. Luer connector assembly
US20080269697A1 (en) * 2001-07-27 2008-10-30 Becton, Dickinson And Company Luer Connector Assembly
US7837659B2 (en) 2001-07-27 2010-11-23 Becton, Dickinson And Company Luer connector assembly
US6955660B2 (en) * 2002-09-09 2005-10-18 Michael Alan Fisher Internal expansion syringe adaptor
US20040049162A1 (en) * 2002-09-09 2004-03-11 Fisher Michael Alan Internal expansion syringe adaptor
US8038182B2 (en) * 2006-07-18 2011-10-18 Mallinckrodt Llc Breakage resistant fitting
US20090171322A1 (en) * 2006-07-18 2009-07-02 Munehito Kurimoto Breakage Resistant Fitting
US20100314796A1 (en) * 2006-08-03 2010-12-16 Becton, Dickinson And Company Syringe and Removable Needle Assembly Having Binary Attachment Features
US20080033370A1 (en) * 2006-08-03 2008-02-07 Becton, Dickinson And Company Binary needle attachment mechanisms
US20100318038A1 (en) * 2006-08-03 2010-12-16 Becton, Dikinson And Company Syringe and Removable Needle Assembly Having Binary Attachment Features
US7922958B2 (en) 2006-08-03 2011-04-12 Becton, Dickinson And Company Method of making an elongate syringe barrel
EP1923086A1 (en) * 2006-11-15 2008-05-21 Arte Corporation Luer-lock type cylindrical tip of syringe
US20080188816A1 (en) * 2006-11-15 2008-08-07 Arte Corporation Luer-lock type cykindrical tip of syringe
EP2140896A4 (en) * 2007-04-26 2013-11-13 Daikyo Seiko Ltd SYRINGE BODY WITH INJECTION NEEDLE, SYRINGE WITH INJECTION NEEDLE, SYRINGE FOR MOLDING SYRINGE BODY WITH INJECTION NEEDLE AND METHOD FOR MOLDING SYRINGE BODY WITH INJECTION NEEDLE
US20100145284A1 (en) * 2007-04-26 2010-06-10 Daikyo Seiko, Ltd. Needle-equipped syringe barrel needle-equipped syringe, and mold and method for molding same
US8790312B2 (en) 2007-04-26 2014-07-29 Daikyo Seiko Ltd. Needle-equipped syringe barrel and needle-equipped syringe
US20090239191A1 (en) * 2008-03-18 2009-09-24 Helmut Wurm Securing system
US20110282298A1 (en) * 2008-12-09 2011-11-17 Nadav Agian Device for injecting fluid isolated from microneedle hub with dead-space-reducing insert
US20150123311A1 (en) * 2012-05-14 2015-05-07 Schottli Ag Method of producing a syringe barrel for medical purposes and device for carrying out said method
US9724859B2 (en) * 2012-05-14 2017-08-08 Husky Injection Molding Systems Ltd. Method of producing a syringe barrel for medical purposes
US20190299507A1 (en) * 2016-10-04 2019-10-03 Gerresheimer Regensburg Gmbh Method for producing a syringe with an integrated closure element
US11850778B2 (en) * 2016-10-04 2023-12-26 Gerresheimer Regensburg Gmbh Method for producing a syringe with an integrated closure element
US20210252225A1 (en) * 2018-07-12 2021-08-19 Becton Dickinson France Glass Luer Tip with Marking and Method for Manufacturing the Same
US12390594B2 (en) * 2018-07-12 2025-08-19 Becton Dickinson France Glass luer tip with marking and method for manufacturing the same
CN114393773A (zh) * 2022-01-13 2022-04-26 辽宁工业大学 一种制作血管支架的便捷式注塑模具
CN114393773B (zh) * 2022-01-13 2023-12-12 辽宁工业大学 一种制作血管支架的便捷式注塑模具

Also Published As

Publication number Publication date
GB1086763A (en) 1967-10-11
NL6605672A (enrdf_load_stackoverflow) 1966-11-14
BE679509A (enrdf_load_stackoverflow) 1966-09-16
DE1491653B1 (de) 1970-04-02

Similar Documents

Publication Publication Date Title
US3402713A (en) Hypodermic syringe with improved retaining means
EP0111724B1 (en) Variable sealing pressure plunger rod assembly
US4543093A (en) Variable sealing pressure plunger rod assembly
US4973309A (en) Disposable syringe
US3074541A (en) Medicinal vial and needle assembly
US5902271A (en) Low dead space, interchangeble needle syringe
JPH06327770A (ja) 薬液充填式注射器
US6517516B1 (en) Method of making a retracting needle syringe
US6033387A (en) Process for manufacturing an injection device of the prefilled type containing a dose of liquid for injection, and injection device produced
AU779820B2 (en) Retracting needle syringe
KR970702735A (ko) 견인력이 작게 드는 주사기 및 카트리지(low drag syringe and cartridge)
KR100361384B1 (ko) 사전충전형주사기
US6361525B2 (en) Single-use syringe
US3316909A (en) Hypodermic syringe operable by one hand
US3354882A (en) Hypodermic syringe
US20190381249A1 (en) Pharmaceutical syringe piston
US2667164A (en) Syringe
US2646798A (en) Cartridge syringe
US20030125671A1 (en) Syringe-type container for liquid medicine
WO2015033951A1 (ja) シリンジ用外筒及び射出成形用金型
US3542024A (en) Hypodermic assembly
IE45413L (en) Hyprodermic syringe
KR20030016242A (ko) 사전 충전식 주사기
US4240428A (en) Segmented syringe locking sleeve
US3638650A (en) Syringe and needle adapter assembly and method of making same