DE2328718A1 - DISPOSABLE SYRINGE, IN PARTICULAR FOR TAKING BLOOD SAMPLES - Google Patents

DISPOSABLE SYRINGE, IN PARTICULAR FOR TAKING BLOOD SAMPLES

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Publication number
DE2328718A1
DE2328718A1 DE2328718A DE2328718A DE2328718A1 DE 2328718 A1 DE2328718 A1 DE 2328718A1 DE 2328718 A DE2328718 A DE 2328718A DE 2328718 A DE2328718 A DE 2328718A DE 2328718 A1 DE2328718 A1 DE 2328718A1
Authority
DE
Germany
Prior art keywords
cap
disposable syringe
thread
piston
blood samples
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
DE2328718A
Other languages
German (de)
Other versions
DE2328718B2 (en
DE2328718C3 (en
Inventor
Utz P Dr Med Merten
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 DE2328718A priority Critical patent/DE2328718C3/en
Priority to GB4962973A priority patent/GB1443524A/en
Publication of DE2328718A1 publication Critical patent/DE2328718A1/en
Publication of DE2328718B2 publication Critical patent/DE2328718B2/en
Application granted granted Critical
Publication of DE2328718C3 publication Critical patent/DE2328718C3/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
    • A61B5/150061—Means for enhancing collection
    • A61B5/150099—Means for enhancing collection by negative pressure, other than vacuum extraction into a syringe by pulling on the piston rod or into pre-evacuated tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150236—Pistons, 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150244—Rods 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
    • A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150885—Preventing re-use
    • A61B5/150908—Preventing re-use by disconnecting components, e.g. breaking or rupturing of connected parts, e.g. piston and rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/06—Ampoules or carpules
    • 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
    • A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5021—Test tubes specially adapted for centrifugation purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3106—Plugs for syringes without needle
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31501—Means for blocking or restricting the movement of the rod or piston
    • A61M5/31505—Integral with the syringe barrel, i.e. connected to the barrel so as to make up a single complete piece or unit

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Clinical Laboratory Science (AREA)
  • Anesthesiology (AREA)
  • Analytical Chemistry (AREA)
  • Vascular Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dermatology (AREA)
  • Pain & Pain Management (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Centrifugal Separators (AREA)

Description

EINWEGSPRITZE, INSBESONDERE ZUR ENTNAHME VON BLUTPROBENDISPOSABLE SYRINGE, IN PARTICULAR FOR TAKING BLOOD SAMPLES

Die Erfindung betrifft eine Einwegspritze, insbesondere zur Entnahme,Aufbewahrung und Verwertung von Blutproben, deren den Kolben tragender Stempel in einer auf dem Zylinder festen Kappe /reführt ist.The invention relates to a disposable syringe, in particular for taking, storing and processing blood samples, whose stamp, which carries the piston, is guided in a cap fixed on the cylinder.

Solche Einwegspritzen müssen billig sein und vertragen daher keinen besonderen Aufwand für die Gleitdichtunken zwischen Kolben und Zylinder und zwischen Stempel und Kappe, sowie den Dichtsitz an der Kanülenhalterunp;,, Tn der Zeit zwischen Entnahme der Blutprobe und deren Untersuchung im Labor konnte durch die mangelhaften Dichtungen etwas Blut nach außen dringens womit dann die Laborantin beim Anfassen der Einwegspritze in Berührung kam«, DarausSuch disposable syringes have to be cheap and therefore do not tolerate any special effort for the sliding seal between the piston and cylinder and between the plunger and cap, as well as the sealing seat on the cannula holder; ,, The time between taking the blood sample and examining it in the laboratory could be due to the inadequate seals some blood outside penetrate s which then the lab assistant to the touch of the disposable syringe came into contact, "This

409881/0548409881/0548

„ O _"O _

Mündliche Abreden, insbesondere durch Telefon, bedürfen schriftlicher Bestätigung.Verbal agreements, especially by telephone, require written confirmation.

Bankkonto: Effeotenbank Warburg AG, Ffm. Konto-Nr.: 000/43944.4 Postscheckkonto (Frankfurt/Main) Nr. 111046-602Bank account: Effeotenbank Warburg AG, Ffm. Account no .: 000 / 43944.4 Postal checking account (Frankfurt / Main) No. 111046-602

ergab sich eine Infektionsgefahr, die zu vermeiden Aufgabe der Erfindung ist.there was a risk of infection that should avoid the task of the invention.

Erfindungsgemäß hat bei einer Einwegspritze der eingangs erwähnten Gattung die Kappe riimenförraiges PrOfIlxIHXt einem Gewinde im äußeren Profilflansch gegenüber einem entsprechenden Gewinde oben auf dem Zylinder und mit einem Gewinde auf dem inneren Profilflansch gegenüber einem Innengewindering an der Außenfläche des Kolbens.According to the invention, in a disposable syringe of the type mentioned, the cap has a riimenförraiges profile x IHXt a thread in the outer profile flange opposite a corresponding thread on top of the cylinder and with a thread on the inner profile flange opposite an internal thread ring on the outer surface of the piston.

Nach dem Aufziehen der Blutprobe wird der Kolben mit seinem Gewindeansatz ganz in das entsprechende Kappengewinde geschraubt, wodurch die Gleitdichtung zwischen Kappe und Stempel zuverlässig abgeschlossen ist und die Spritze unbedenklich für Transport und Lagerung der Blutprobe verwendet werden kann, besonders wenn dabei zum Schutz und zur Entlastung dieser Schraubverbindung der herausragende Stempelteil durch eine Sollbruchstelle oder eine Steck- oder Gewindekupplung abnehmbar ist, und wenn in Weiterbildung der Erfindung eine Verschlußkappe mit einem Innengewinde auf der Kanülenhalterung vorgesehen ist, welche Kappe mit einem Dorn in die Halterungsbohrung zusätzlich dichtend drückt. Beim unvorsichtigen Aufziehen der Spritze könnte durch rasche Druckabnahme das eingesaugte Blut verschäumen und dann leichter durch die Kanülenhalterung nach außen kriechen, was in Weiterbildung der Erfindung verhindert wird durch konkave Ausbildung des Kolbenbodens.After drawing up the blood sample, the piston with its threaded attachment is screwed all the way into the corresponding cap thread, whereby the sliding seal between cap and plunger is reliably closed and the syringe can safely be used for transport and storage of the blood sample, especially if it is used for protection and to relieve this screw connection, the protruding stamp part through a predetermined breaking point or a Plug-in or threaded coupling is removable, and if, in a further development of the invention, a closure cap with a Internal thread is provided on the cannula holder, which cap with a mandrel in the holder bore in addition presses sealingly. If the syringe is pulled up carelessly, the sucked-in blood could foam up due to the rapid decrease in pressure and then more easily crawl out through the cannula holder, which is prevented in a further development of the invention is made by the concave design of the piston crown.

Zur Auswertung der Blutprobe im Labor braucht lediglich die Kappe mit dem Gewinde in ihrem äußeren Profilflansch vom Zylinder abgeschraubt zu werden, wodurch sich der verbleibende Spritzenteil in ein Zentrifugenglas verwandelt, so daß auch zum Zentrifugieren der entnommenen Blutprobe keinerlei Umfüllen erforderlich ist, also wiederum jegliche Berührungsgefahr zwischen der TJntersuchungsperson und der Blutprobe vermieden werden kann.To evaluate the blood sample in the laboratory, all you need is the cap with the thread in its outer profile flange from Cylinder to be unscrewed, which turns the remaining part of the syringe into a centrifuge tube, like that that no transferring is necessary for centrifuging the blood sample taken, so again any risk of contact between the investigator and the blood sample can be avoided.

Die Erfindung möge anhand des in den Figuren schematisch dargestellten Ausführungsbeispiels veranschaulicht werden.The invention should be illustrated using the exemplary embodiment shown schematically in the figures.

409881 /0548409881/0548

Es zeigen:Show it:

Fig. 1 im Axialschnitt und in auseinandergezogener Darstellung eine Spritze mit Kanülenverschluß, Fig. 1 in axial section and in an exploded view, a syringe with cannula closure,

Fig. 1a eine Variante des Stempels in Fig. 1, Fig. 2-4 in kleinerem Maßstab die Spritze, vorbereitet zur Blutentnahme, sodann verschlossen zum Transportj und schließlich, oben geöffnet, als Zentrifugengefäß.Fig. 1a shows a variant of the stamp in Fig. 1, 2-4, on a smaller scale, the syringe, prepared for taking blood, then closed for Transportj and finally, open at the top, as a centrifuge tube.

Während der Blutentnahme wird der Stempel S mit einer Handhabe am oberen Ende, etwa der Verjüngung E bis zum oberen inneren Gewinde IG der rinnenförmigen Kappe hochgezogen und durch eine Drehung in diese bis zum Anschlag gegen das Rückenteil der Kappe geschraubt. Dadurch wird ein Auslaufen der Probe entlang des Stempels vollkommen verhindert. Anschließend wird der obere Teil des Stempels S an der Markierung M, etwa einer Schwächungsstelle (Fig. 1) oder einer Schraubverbindung (Fig. 1a) oder einer Steckverbindung durch kurzes Hin- und Herbewegen losgelöst und verworfen.While the blood is being taken, the stamp S is set with a handle at the upper end, for example the taper E up to The upper inner thread IG of the trough-shaped cap is pulled up and turned into it until it stops screwed against the back of the cap. This completely prevents the sample from running out along the punch prevented. Then the upper part of the stamp S is at the marking M, for example a weakening point (Fig. 1) or a screw connection (Fig. 1a) or a plug connection released by briefly moving back and forth and discarded.

Auf das untere Gewinde G an der Kanülenhalterung wird danach die Kappe K geschraubt, deren Dorn D und das Doppelgewinde G verschließen die untere Öffnung doppelt, so daß während des Transportes und der Zentrifugierung ein Ausfließen der Probe verhindert wird. Der Boden des Kolbens S ist konkav, damit beim Aufziehen der Spritze die zeitliche Druckabnahme und damit ein Verschäumen des Blutes im Bereich der Kanülenhalterung, bei G, und damit ein Überkriechen des Schaumes in Richtung zum Aussengewinde G der Kanülenhalterung verhindert wird.The cap K is then screwed onto the lower thread G on the cannula holder, its mandrel D and the double thread G close the lower opening twice so that the sample flows out during transport and centrifugation is prevented. The bottom of the plunger S is concave so that the pressure decrease over time when the syringe is drawn up thus foaming of the blood in the area of the cannula holder, at G, and thus a creeping over of the foam is prevented in the direction of the external thread G of the cannula holder.

Nach dem Eintreffen der Probe im Labor wird der gesamte obere Verschluß durch Herausdrehen der rinnenförmigen Kappe an ihrem äußeren Gewinde AG zusammen mit dem Stempelrest entfernt. Es entsteht dadurch ein Zentrifugenglas (Fig. 4), in dem die Probe ohne Umfüllen untersucht werden kann. 409881/0548After the sample arrives in the laboratory, the entire upper closure is removed by unscrewing the trough-shaped Cap on its outer thread AG removed together with the rest of the punch. This creates a centrifuge glass (Fig. 4), in which the sample can be examined without decanting. 409881/0548

Die vorliegende Mehrzweclcspritze vermindert die Gefahr der Verschüttung der Probe und Verunreinigung der Umgebung, den direkten Kontakt der entnehmenden Person mit der Probe und damit die Infektionsgefahr erheblich. Weiterhin hat sie den Vorteil, daß sie durch beidseitigen doppelten Verschluß ihrer Öffnungen D+G / AG-IG+S einen sicheren Versand und Verarbeitung im Laboratorium ermöglicht.The present multi-purpose syringe reduces the risk of Spillage of the sample and contamination of the environment, the direct contact of the person taking with the sample and thus the risk of infection is considerable. Furthermore, she has the advantage that they can be shipped safely thanks to the double-sided closure of their openings D + G / AG-IG + S and processing in the laboratory.

Da sie Spritze, Versandgefäß und Zentrifugenröhrchen in einem darstellt, müssen keine höheren Kosten entstehen als die durch Einwegspritzen, Röhrchen und Stopfen z. Z. ausmachen.Since it is a syringe, shipping container and centrifuge tube in one, there are no higher costs than those obtained by disposable syringes, tubes and stoppers e.g. Turn off Z.

409881/0548409881/0548

Claims (5)

ANSPRÜCHEEXPECTATIONS 1.)] Einwegspritze, insbesondere zur Entnahme von Blutproben, deren den Kolben tragender Stempel in einer auf dem Zylinder festen Kappe geführt ist, dadurch gekennzeichnet, daß die Kappe rinnenförmiges Profil hat, mit einem Gewinde (AG) im äußeren Profilflansch gegenüber einem entsprechenden Gewinde oben auf dem Zylinder, und mit einem Gewinde (IG) auf dem inneren Profilflansch gegenüber einem entsprechenden Gewindering an der Außenfläche des Kolbens.1.)] Disposable syringes, especially for taking blood samples, whose punch carrying the piston is guided in a cap fixed on the cylinder, thereby characterized in that the cap has a channel-shaped profile, with a thread (AG) in the outer profile flange opposite a corresponding thread on top of the cylinder, and with a thread (IG) on the inner one Profile flange opposite a corresponding threaded ring on the outer surface of the piston. 2.) Einwegspritze, dadurch gekennzeichnet, daß der in zurückgezogener Kolbenposition aus der Kappe ragende Stempelteil mit dem anderen Stempelteil lösbar zusammenhängend ausgeführt ist, etwa durch eine Einziehung (m) als Sollbruchstelle oder eine Schrauboder Steckverbindung.2.) Disposable syringe, characterized in that the piston protruding from the cap in the retracted position Stamp part is executed releasably coherent with the other stamp part, for example by a retraction (m) as a predetermined breaking point or a screw or plug connection. 3.) Einwegspritze nach Anspruch 1 insbesondere mit Sollbruchstelle nach Anspruch 2, gekennzeichnet durch eine als Einschnürung (e) ausgebildete Handhabe am oberen Stempelen^jde.3.) Disposable syringe according to claim 1, in particular with a predetermined breaking point according to claim 2, characterized by a as a constriction (e) designed handle on the upper punch ^ jde. 4.) Einwegspritze nach einem oder mehreren der vorhergehenden Ansprüche, gekennzeichnet durch eine Verschlußkappe (κ), mit einem Innengewinde (g) auf der Kanülenhalterung sitzend und in deren Bohrung mit einem Dorn (d) drückend.4.) Disposable syringe according to one or more of the preceding Claims, characterized by a closure cap (κ), with an internal thread (g) on the cannula holder sitting and pressing in the hole with a mandrel (d). 5.) Einwegspritze nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kolben (s) einen konkaven Boden hat. (Fig. 1).5.) Disposable syringe according to one or more of the preceding claims, characterized in that the Piston (s) has a concave bottom. (Fig. 1). 409881/054 8409881/054 8 LeerseiteBlank page
DE2328718A 1972-10-27 1973-06-06 Blood collection device Expired DE2328718C3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2328718A DE2328718C3 (en) 1973-06-06 1973-06-06 Blood collection device
GB4962973A GB1443524A (en) 1972-10-27 1973-10-24 Multi-purpose syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2328718A DE2328718C3 (en) 1973-06-06 1973-06-06 Blood collection device

Publications (3)

Publication Number Publication Date
DE2328718A1 true DE2328718A1 (en) 1975-01-02
DE2328718B2 DE2328718B2 (en) 1980-05-29
DE2328718C3 DE2328718C3 (en) 1981-02-05

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DE2328718A Expired DE2328718C3 (en) 1972-10-27 1973-06-06 Blood collection device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026281A1 (en) * 1974-11-29 1982-02-04 Walter Sarstedt Kunststoff-Spritzgußwerk, 5223 Nümbrecht Extraction instrument for obtaining blood samples - includes locking members securing piston at rear of pipette in opposition to vacuum
DE29505652U1 (en) * 1995-04-01 1996-04-25 Boehringer Mannheim Gmbh, 68305 Mannheim Vessel for the reduced contamination treatment of liquids
EP0847726A1 (en) * 1993-09-22 1998-06-17 B. Braun Melsungen Ag Blood collecting device
WO2009126435A2 (en) * 2008-04-11 2009-10-15 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US8206353B2 (en) 2008-04-11 2012-06-26 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US9089637B2 (en) 2008-04-11 2015-07-28 Medtronic Minimed, Inc. Reservoir plunger head systems and methods

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3932109A1 (en) * 1989-09-26 1991-04-11 Sarstedt Walter Geraete BLOOD COLLECTION DEVICE
DE4021355A1 (en) * 1989-10-09 1991-04-18 Sarstedt Walter Geraete Removing blood from patient's vein - involves catheter connected to evacuated tube

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026281A1 (en) * 1974-11-29 1982-02-04 Walter Sarstedt Kunststoff-Spritzgußwerk, 5223 Nümbrecht Extraction instrument for obtaining blood samples - includes locking members securing piston at rear of pipette in opposition to vacuum
EP0847726A1 (en) * 1993-09-22 1998-06-17 B. Braun Melsungen Ag Blood collecting device
DE29505652U1 (en) * 1995-04-01 1996-04-25 Boehringer Mannheim Gmbh, 68305 Mannheim Vessel for the reduced contamination treatment of liquids
US5855852A (en) * 1995-04-01 1999-01-05 Boehringer Mannheim Gmbh Vessel for reducing contamination in the treatment of liquids
WO2009126435A2 (en) * 2008-04-11 2009-10-15 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
WO2009126435A3 (en) * 2008-04-11 2010-03-04 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US8206353B2 (en) 2008-04-11 2012-06-26 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US8702655B2 (en) 2008-04-11 2014-04-22 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US8858501B2 (en) 2008-04-11 2014-10-14 Medtronic Minimed, Inc. Reservoir barrier layer systems and methods
US9089637B2 (en) 2008-04-11 2015-07-28 Medtronic Minimed, Inc. Reservoir plunger head systems and methods
US9295776B2 (en) 2008-04-11 2016-03-29 Medtronic Minimed, Inc. Reservoir plunger head systems and methods

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DE2328718B2 (en) 1980-05-29
DE2328718C3 (en) 1981-02-05

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