DE148617C - - Google Patents

Info

Publication number
DE148617C
DE148617C DENDAT148617D DE148617DA DE148617C DE 148617 C DE148617 C DE 148617C DE NDAT148617 D DENDAT148617 D DE NDAT148617D DE 148617D A DE148617D A DE 148617DA DE 148617 C DE148617 C DE 148617C
Authority
DE
Germany
Prior art keywords
piston
cylinder
syringe
rod
plunger
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.)
Active
Application number
DENDAT148617D
Other languages
German (de)
Publication of DE148617C publication Critical patent/DE148617C/de
Active legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31513Piston constructions to improve sealing or sliding

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Description

P λ τ ε ν τ - A ν s ρ R υ c η :P λ τ ε ν τ - A ν s ρ R υ c η:

Spritze mit gewindelosem Zylinder und nachspannbarem, elastischem Kolben, dadurch gekennzeichnet, daß das offene Zylinderende eingebuchtet ist, zu dem Zweck, den Kolben zu führen und dessen Herausziehen in gespanntem Zustande zu verhindern. Syringe with threadless cylinder and elastic plunger that can be tightened, thereby characterized in that the open end of the cylinder is indented for the purpose of guiding the piston and pulling it out to prevent in a tense state.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Den Gegenstand der Erfindung bildet eine Anordnung zur Führung der Kolbenstange in Spritzen mit gewindelosem Zylinder und nachstellbarem Kolben bei gleichzeitiger Verhinderung des Ausziehens des Kolbens aus dem Zylinder in gespanntem Zustande des Kolbens.The subject of the invention is an arrangement for guiding the piston rod in syringes with threadless cylinders and adjustable plungers with simultaneous prevention pulling the piston out of the cylinder in the cocked state of the piston. Die Spritze ist auf der beiliegenden Zeichnung in Fig. ι bis 4 in einem Längsschnitt, zwei Querschnitten und einer Längenansicht dargestellt.The syringe is on the accompanying drawing in Fig. 1 to 4 in a longitudinal section, two cross-sections and a length view shown. Der am geeignetsten aus Glas bestehende Spritzenzylinder α ist am Einführungsende c des Kolbens so weit eingeengt, daß der nicht zusammengepreßte, aus elastischem Material, wie Durit, Gummi oder dergl., bestehende Kolben k gerade noch hindurchgeht. Der Kolben k liegt zwischen dem Ende der Hohlstange /;, die durch die Einengung des Zylinders eine Führung erhält, und dem in g gelagerten Kopf e einer in der Hohlstange h liegenden, durch den Kolben gehenden Stange d, welche am vorstehenden Ende mit Gewinde und einer Mutter f mit Unterlagescheibe i versehen ist. Durch Anziehen oder Lösen der Mutter f wird der Kolben k gespannt bezw. gelockert. The syringe cylinder α most suitably made of glass is narrowed at the insertion end c of the plunger to such an extent that the uncompressed plunger k made of elastic material such as Durit, rubber or the like just barely passes through it. The piston k lies between the end of the hollow rod /; which is guided by the constriction of the cylinder, and the head e mounted in g of a rod d lying in the hollow rod h and passing through the piston, which at the protruding end is threaded and a nut f is provided with washer i . By tightening or loosening the nut f , the piston k is tensioned BEZW. relaxed. Das vordere Ende b der Spritze wird je nach deren Verwendungszweck gestaltet und ist beispielsweise in der Zeichnung konisch zum Aufstecken einer Spritznadel.The front end b of the syringe is designed depending on its intended use and is, for example, conical in the drawing for attaching a syringe needle. Wie ohne weiteres ersichtlich, kann der Kolben, sobald er gespannt ist, nicht aus dem Zylinder herausgezogen werden.As can be seen without further ado, the piston, as soon as it is cocked, cannot get out of the Cylinder can be pulled out.
DENDAT148617D Active DE148617C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR325274T

Publications (1)

Publication Number Publication Date
DE148617C true DE148617C (en)

Family

ID=8890460

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT148617D Active DE148617C (en)

Country Status (2)

Country Link
DE (1) DE148617C (en)
FR (1) FR325274A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030498A (en) * 1974-10-25 1977-06-21 Baxter Travenol Laboratories, Inc. Syringe
CH591866A5 (en) * 1975-11-05 1977-09-30 Lezard Sa

Also Published As

Publication number Publication date
FR325274A (en) 1903-04-24

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