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DE2108381A1 - Injection or suction ampoule - Google Patents

Injection or suction ampoule

Info

Publication number
DE2108381A1
DE2108381A1 DE19712108381 DE2108381A DE2108381A1 DE 2108381 A1 DE2108381 A1 DE 2108381A1 DE 19712108381 DE19712108381 DE 19712108381 DE 2108381 A DE2108381 A DE 2108381A DE 2108381 A1 DE2108381 A1 DE 2108381A1
Authority
DE
Germany
Prior art keywords
piston
filling body
section
syringe according
cross
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.)
Granted
Application number
DE19712108381
Other languages
German (de)
Other versions
DE2108381C3 (en
DE2108381B2 (en
Inventor
Der Anmelder Ist
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2108381A priority Critical patent/DE2108381C3/en
Publication of DE2108381A1 publication Critical patent/DE2108381A1/en
Publication of DE2108381B2 publication Critical patent/DE2108381B2/en
Application granted granted Critical
Publication of DE2108381C3 publication Critical patent/DE2108381C3/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150236Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel 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
    • A61B5/150206Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150244Rods for actuating or driving the piston, i.e. the cylindrical body that sits inside the syringe barrel, typically with an air tight seal, and slides in the barrel to create a vacuum or to expel 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
    • A61B5/150206Construction 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
    • 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
    • A61B5/150503Single-ended needles
    • 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/3129Syringe barrels

Landscapes

  • 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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Description

Spritz- oier Saugampulle Die Erfindung betrifft eine Spritz- oder Saugampulle mit einer Einstichnadel und einem Füllkörper sowie einem darin verschiebbaren und gegen die Innenwandungen des Füllkörpers dichten Kolben.Injection or suction ampoule The invention relates to an injection or Suction ampoule with a puncture needle and a filling body as well as a displaceable inside and pistons seal against the inner walls of the filling body.

Derartige medizinische Pumpen sind an sich bereits bekannt. Sie dienen entweder zur Blutentnahme oder aber zur Durchführung von Injektionen und dgl..Such medical pumps are already known per se. You serve either for taking blood or for performing injections and the like.

Die bekannten derartigen Spritzen haben eine runde Querschnittsform. Nachteilig ist bei dieser runden Form, dass sie verhältnismässig schwierig zu handhaben ist.The known syringes of this type have a round cross-sectional shape. The disadvantage of this round shape is that it is relatively difficult to handle is.

Die Erfindung hat sich deshalb die Aufgabe gestellt, eine Spritzampulle der eingangs erwähnten Art zu schaffen, welche wesentlich besser geführt und gehalten werden kann, sowohl beim Spritzen oder Absaugen als auch beim Füllen mit Medikamenten und dgl.. Insbesondere bei schwer aufzufindenden Vene.The invention has therefore set itself the task of providing an injection ampoule of the type mentioned at the beginning, which are managed and held much better can be, both when injecting or suctioning as well as when filling with medication and the like. Especially with hard-to-find veins.

und dgl. ist nämlich eine graue und sichere Führung des Instrumentes erforderlich.and the like. Is namely a gray and safe guidance of the instrument necessary.

Zur lösung dieser Aufgabe schlägt die Erfindung eine Spritz- oder Saugampulle der eingangs erwähnten Art vor, welche vor allem dadurch gekennzeichnet ist, dass zumindest der äussere Querschrdtt des Füllkörpers von einer runden Form abweichend mehreckig ausgebildet ist, Z.B. kann er rechteckig bzw. quadratisch oder fünfeckig ausgebildet sein. Dadurch ist eine sicherere Handhabung und Haltung des Instrumentes möglich.To solve this problem, the invention proposes a spray or Suction ampoule of the type mentioned above, which is primarily characterized is that at least the outer cross section of the filler body is round in shape differently, it is polygonal, e.g. it can be rectangular or square or be pentagonal. This ensures safer handling and maintenance of the Instrument possible.

Nachstehend ist die Erfindung mit ihren ihr als erfindungswesentlich zugehörenden Einzelheiten anhand der Zeichnung noch naher beschrieben. Es zeigt: Fig. 1 in schaubildlicher Darstellung ein teilweise aufgeschnittenes Spritzinstrument, Fig. 2 einen zu dem Instrument in Fig. 1 gehörigen Kolben, Fig. 3 eine etwas abgewandelte Ausfübrungsform gemäss Fig. 1 und Fig, 4 den zur Ausführungsform gemäss Fig. 3 gehörenden verschiebbsren Kolben.In the following, the invention and its aspects are essential to the invention associated details are described in more detail with reference to the drawing. It shows: 1 shows a partially cut-open injection instrument in a diagrammatic representation, FIG. 2 shows a piston belonging to the instrument in FIG. 1, Fig. 3 shows a somewhat modified embodiment according to FIG. 1 and FIG. 4 for the embodiment 3 belonging sliding piston.

In den Figuren 1 und 3 erkennt man jeweils eine Spritze 1 br0 . la, welche erfindungsgemäss eine von der runden Form abweichende mehrkantige Aussenform besitzt. Dadurch soll die Hzndhatung des Instruments erleichtert werden.A syringe 1 br0 can be seen in each of FIGS. 1 and 3. la, which according to the invention has a polygonal outer shape that deviates from the round shape owns. This is intended to facilitate the maintenance of the instrument.

Das Instrument 1 gemäss pi. 1 besitzt dsbei einen fünfeckigen Querschnitt, Während die Ausführungsform gemäss Fig. 3 einen etwa quadratischen Querschnitt hat.The instrument 1 according to pi. 1 has a pentagonal cross-section, While the embodiment according to FIG. 3 has an approximately square cross section.

Dabei bestehen die Instrumente aus einem Füllkörper 2 und darin verschiebbaren Kolben 3, welche im Ausführungsbeispiel der Kontun der Füllkörper angepasst sind.The instruments consist of a filling body 2 and can be displaced therein Pistons 3, which in the exemplary embodiment are adapted to the contour of the filler bodies.

Bei der Ausfährungsform nach Fig. 3 ist die Injektionsnadel 4 an der Vorderseite des Füllkörpers 2 mit rechteckigem Querschnitt im Bereich des durch eine Seitenfläche urd die Stirnfläche gebildeten Randes 5 angesetzt.In the embodiment according to FIG. 3, the injection needle 4 is on the Front of the filling body 2 with a rectangular cross-section in the area of the through a side face urd the end face formed edge 5 is attached.

Bei der Ausfährungaform gerfss Fig. 1, bei welcher der Füllkörper drei rechtwinklig zueinander stehende Seitenflächen 6 besitzt, deren Abschluss von zwei weiteren in einem Winkel von mehr als 900 stehenden Flächen 7 gebildet ist, ist die Injektionsnadel 4 an der vorderen Stirnseite etwa in dem Winkelbereich dieser einen stumpfen Winkel miteinander bildenden Seitenflächen 7 angeordnet. Auch dadurch kann die Handhabung verbessert werden, insbesondere wenn relativ zu einer Oberfläche unter sehr spitzem Winkel eingestochen werden muss.In the embodiment shown in Fig. 1, in which the Packing body has three mutually perpendicular side surfaces 6, whose Completion of two further surfaces at an angle of more than 900 7 is formed, the injection needle 4 is on the front face approximately in the angular range these side surfaces 7 forming an obtuse angle with one another are arranged. Even this can improve handling, especially when relative to a Surface must be pierced at a very acute angle.

Die kolbenartigen Schieber 3 gemäss den Figuren 2 und 4 besitzen jeweils im Bereich ihrer vorderen Enden eine Anschlagrille 8 od.dgl. welche mit einer entsprechenden Rille 9 im hinteren Bereich der Füllkörper 2 einen Begrenzungsanschlag bilden. Zweckmässigerweise bestehen die beiden Ausführungsformen der erfindungsgemessen Spritze wenigstens teilweise aus Kunststoff, was insbesondere bei der Reinigung und Sterilisierung vorteilhaft ist.The piston-like slide 3 according to Figures 2 and 4 each have a stop groove 8 or the like in the region of their front ends. which with a corresponding Groove 9 in the rear area of the packing 2 form a limit stop. Appropriately the two embodiments of the syringe according to the invention exist at least partly made of plastic, which is especially important for cleaning and sterilization is advantageous.

Man erkennt in den Figuren 2 und 4, dass die kolbenartigen Schieber 3 zwischen Handgriff 10 und vorderem Kolbenteil zwei Verbindungsleisten 11 besitzen, deren Breite etwa der Kolbenbreite entspricht. Dadurch wird vermieden, dass als Schieber ein über die gesamte Länge geschlossener Körper hergestellt werden muss.It can be seen in Figures 2 and 4 that the piston-like slide 3 have two connecting strips 11 between the handle 10 and the front piston part, the width of which corresponds approximately to the width of the piston. This avoids being used as a Slide a body that is closed over its entire length must be produced.

Claims (1)

Patentansprüche Claims 9 pritz- oder Saugampulle mit einer Einstichnadel und einem Füllkörper sowie einem darin verschiebbaren und gegen die Innenwandungen des Füllkörpers dichten Kolben, d a d u r c h g e k e n n -z e i c h n e t , dass zumindest der äussere Querschnitt des Füllkörpers (2) von einer runden Form abweichend mehreckig ausgebildet ist.9 injection or suction ampoule with a puncture needle and a filling body as well as one which can be moved therein and seal against the inner walls of the filling body Piston, d u r g e k e n n -z e i c h n e t, that at least the outer one Cross-section of the filling body (2) deviating from a round shape is polygonal is. 20 Spritze nach Anspruch 1, dadruch gekennzeichnet, dass der Querschnitt des Füllkörpers (2) rechteckig bzw. quadratisch oder fünfeckig ist, 3. Spritze nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Injektionsnadel (4) an der Vorderseite des Füllkörpers (2) mit rechteckigem Querschnitt im Bereich des durch eine Seitenfläche und die Stirnfläche gebildeten Randes (5) angesetzt ist.20 Syringe according to claim 1, characterized in that the cross section of the filling body (2) is rectangular, square or pentagonal, 3rd syringe after Claim 1 or 2, characterized in that the injection needle (4) on the front of the filling body (2) with a rectangular cross-section in the area of the through a side surface and the end face formed edge (5) is attached. 40 Spritze nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass bei fünfeckigem Querschnitt der Füllkörper (2) drei rechtwinklig zueinanderstehende Seitenflächen t6) besitzt, deren Abschluss von zwei weiteren in einem Winkel von vorzugsweise mehr als 9o stehenden Flächen (7) gebildet ist und dass die Injektionsnadel an der vorderen Stirnseite etwa in dem Bereich dieser zu den übrigen Seitenflächen unter einem von 900 abweichenden Winkel stehenden Seitenflächen O angeordnet ist.40 syringe according to claim 1 or 2, characterized in that at pentagonal cross-section of the packing (2) three at right angles to each other Side surfaces t6), the end of which by two more at an angle of preferably more than 9o standing surfaces (7) is formed and that the injection needle on the front end face approximately in the area of this too the other side surfaces at an angle deviating from 900 side surfaces O is arranged. So Spritze nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der kolbenartige Schieber (3) im Bereich seines vorderen Endes eine Anschlagrille (8) od, dgl. besitzt, welche mit einer entsprechenden Rille (9) od.dgl.Thus syringe according to one or more of claims 1 to 4, characterized characterized in that the piston-like slide (3) in the region of its front end has a stop groove (8) or the like, which with a corresponding groove (9) or the like. auf der Innenseite des hinteren Bereiches des Püllkörpers (2) einen Begrenzungsanschlag bildet. on the inside of the rear area of the purging body (2) Limiting stop forms. 6. Spritze nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sie wenigstens teilweise aus Kunststoff besteht.6. Syringe according to one or more of the preceding claims, characterized characterized in that it consists at least partially of plastic. 7. Spritze nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der kolbenartige Schieber (3) zwischen Handgriff (lo) und vorderem Kolbenteil zwei Verbindungsleisten (11) besitzt, deren Breite etwa der Kolbenbreite entspricht.7. Syringe according to one or more of the preceding claims, characterized characterized in that the piston-like slide (3) between the handle (lo) and the front The piston part has two connecting strips (11), the width of which is approximately the same as the width of the piston is equivalent to. 8.Jnsbesonderem geeignet als"Rur Sinmalspritze" aus Plastikmaterialien.8. Particularly suitable as a "Rur single syringe" made of plastic materials. L e e r s e i t eL e r s e i t e
DE2108381A 1971-01-29 1971-01-29 Injection or suction ampoule Expired DE2108381C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2108381A DE2108381C3 (en) 1971-01-29 1971-01-29 Injection or suction ampoule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2108381A DE2108381C3 (en) 1971-01-29 1971-01-29 Injection or suction ampoule

Publications (3)

Publication Number Publication Date
DE2108381A1 true DE2108381A1 (en) 1972-08-24
DE2108381B2 DE2108381B2 (en) 1981-05-14
DE2108381C3 DE2108381C3 (en) 1982-01-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE2108381A Expired DE2108381C3 (en) 1971-01-29 1971-01-29 Injection or suction ampoule

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DE (1) DE2108381C3 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457477A1 (en) * 1990-05-09 1991-11-21 Safety Syringes, Inc. Improved disposable self-shielding hypodermic syringe
WO1999022788A1 (en) * 1997-10-30 1999-05-14 Novo Nordisk A/S A cylinder ampoule
EP1110568A3 (en) * 1999-12-21 2002-11-27 CANE' S.r.l. Syringe for infusing drugs
WO2005118029A1 (en) * 2004-06-02 2005-12-15 Disetronic Licensing Ag Container for storing a product to be injected, and injection device
EP1958655A1 (en) 2007-02-14 2008-08-20 Daikyo Seiko, LTD. Syringe barrel and syringe
WO2012037082A1 (en) 2010-09-14 2012-03-22 Neomed, Inc. Enteral syringe
WO2012064933A1 (en) 2010-11-11 2012-05-18 Facet Technologies, Llc Safety lancets having angled grips
JP2013255837A (en) * 2007-06-04 2013-12-26 Becton Dickinson & Co Plunger rod for pre-filled syringe
US10307337B2 (en) 2015-03-24 2019-06-04 Neomed, Inc. Oral administration coupler for back-of-mouth delivery
US10420709B2 (en) 2015-07-14 2019-09-24 Neomed, Inc. Dosing control coupling for enteral fluid transfer
US10682287B2 (en) 2015-07-14 2020-06-16 Neomed, Inc. Dosing control coupling for enteral fluid transfer and enteral couplings and syringes
US10722432B2 (en) 2016-02-25 2020-07-28 Neomed, Inc. Syringe plunger with hinged flange

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700537A1 (en) * 1997-01-10 1998-07-16 Gerhard Dr Sprueth Cannula for drawing small blood samples, e.g. to test blood glucose
US9433729B2 (en) 2010-09-14 2016-09-06 Neomed, Inc. Enteral syringe
US10898414B2 (en) 2012-08-06 2021-01-26 Neomed, Inc. System and method for metered enteral feeding
USD831203S1 (en) 2015-03-02 2018-10-16 Neomed, Inc. Enteral syringe
USD825747S1 (en) 2015-03-02 2018-08-14 Neomed, Inc. Enteral syringe
USD807502S1 (en) 2015-03-02 2018-01-09 Neomed, Inc. Enteral syringe
USD831204S1 (en) 2015-03-02 2018-10-16 Neomed, Inc. Enteral syringe
USD827817S1 (en) 2015-03-02 2018-09-04 Neomed, Inc. Enteral syringe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075282B (en) * 1960-02-01 Abbott Laboratories North Chi cago 111 (V St A) Injection ampoule
DE1127031B (en) * 1958-12-04 1962-04-05 Karl Erik Harry Danielsson Syringe for medical purposes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075282B (en) * 1960-02-01 Abbott Laboratories North Chi cago 111 (V St A) Injection ampoule
DE1127031B (en) * 1958-12-04 1962-04-05 Karl Erik Harry Danielsson Syringe for medical purposes

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457477A1 (en) * 1990-05-09 1991-11-21 Safety Syringes, Inc. Improved disposable self-shielding hypodermic syringe
WO1999022788A1 (en) * 1997-10-30 1999-05-14 Novo Nordisk A/S A cylinder ampoule
US6312413B1 (en) 1997-10-30 2001-11-06 Novo Nordisk A/S Cylinder ampoule
EP1110568A3 (en) * 1999-12-21 2002-11-27 CANE' S.r.l. Syringe for infusing drugs
WO2005118029A1 (en) * 2004-06-02 2005-12-15 Disetronic Licensing Ag Container for storing a product to be injected, and injection device
US7914500B2 (en) 2004-06-02 2011-03-29 Roche Diagnostics International Ag Container for storing a product to be injected, and an injection device for use with the container
EP1958655A1 (en) 2007-02-14 2008-08-20 Daikyo Seiko, LTD. Syringe barrel and syringe
JP2013255837A (en) * 2007-06-04 2013-12-26 Becton Dickinson & Co Plunger rod for pre-filled syringe
WO2012037082A1 (en) 2010-09-14 2012-03-22 Neomed, Inc. Enteral syringe
WO2012064933A1 (en) 2010-11-11 2012-05-18 Facet Technologies, Llc Safety lancets having angled grips
US10307337B2 (en) 2015-03-24 2019-06-04 Neomed, Inc. Oral administration coupler for back-of-mouth delivery
US10624817B2 (en) 2015-03-24 2020-04-21 Neomed, Inc. Oral administration coupler for back-of-mouth delivery
US10420709B2 (en) 2015-07-14 2019-09-24 Neomed, Inc. Dosing control coupling for enteral fluid transfer
US10682287B2 (en) 2015-07-14 2020-06-16 Neomed, Inc. Dosing control coupling for enteral fluid transfer and enteral couplings and syringes
US12527723B2 (en) 2015-07-14 2026-01-20 Avent, Inc. Dosing control coupling for enteral fluid transfer and enteral couplings and syringes
US10722432B2 (en) 2016-02-25 2020-07-28 Neomed, Inc. Syringe plunger with hinged flange
US11925791B2 (en) 2016-02-25 2024-03-12 Avent, Inc. Syringe plunger with hinged flange

Also Published As

Publication number Publication date
DE2108381C3 (en) 1982-01-28
DE2108381B2 (en) 1981-05-14

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