DK156414B - Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten - Google Patents

Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten Download PDF

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Publication number
DK156414B
DK156414B DK361987A DK361987A DK156414B DK 156414 B DK156414 B DK 156414B DK 361987 A DK361987 A DK 361987A DK 361987 A DK361987 A DK 361987A DK 156414 B DK156414 B DK 156414B
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DK
Denmark
Prior art keywords
syringe
piston
piston rod
end wall
needle
Prior art date
Application number
DK361987A
Other languages
English (en)
Other versions
DK156414C (da
DK361987D0 (da
DK361987A (da
Inventor
Gerda Ingrid Maria Gaarde
Knud-Werner Gaarde
Original Assignee
Gerda Ingrid Maria Gaarde
Gaarde Knud Werner
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 Gerda Ingrid Maria Gaarde, Gaarde Knud Werner filed Critical Gerda Ingrid Maria Gaarde
Publication of DK361987D0 publication Critical patent/DK361987D0/da
Priority to DK361987A priority Critical patent/DK156414C/da
Priority to PCT/DK1988/000116 priority patent/WO1989000435A1/en
Priority to DE8888905743T priority patent/DE3874744T2/de
Priority to US07/458,637 priority patent/US5064419A/en
Priority to EP88905743A priority patent/EP0367780B1/en
Priority to AT88905743T priority patent/ATE80557T1/de
Priority to JP63506068A priority patent/JP2644568B2/ja
Publication of DK361987A publication Critical patent/DK361987A/da
Publication of DK156414B publication Critical patent/DK156414B/da
Application granted granted Critical
Publication of DK156414C publication Critical patent/DK156414C/da

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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
    • A61M5/32Needles; 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
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/58Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/581Means for facilitating use, e.g. by people with impaired vision by audible feedback
    • 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
    • A61M5/50Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/508Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00Surgery
    • Y10S128/917Body fluid, devices for protection therefrom, e.g. aids, hepatitus
    • Y10S128/919Syringe, means to protect user

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Fertilizing (AREA)
  • Reciprocating Pumps (AREA)
  • Nozzles (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Description

χ DK 156 414 B
5 Opfindelsen angâr en in jektionsspr0jte af den art, der er angivet i kravets indledning.
Fra US patentskrift nr. 4.650.468 kendes en sâdan injektionsspr0jte, hvor kanylen, efter at spr0j ten er 10 t0mt, kan trækkes ind i spr0jten og holdes fastlâst, sâledes at ingen kân komme i ber0ring med kanyle-spidsen og eventuelt blive udsat for smitte, og sâle- des. at spr0jten ikke kan genbruges. 1 spr0jten er kanylen raonteret i et stempelhoved, som i spr0jtens 15 brugsklare stand er koblet fri af stemplet og sammen-koblet med den forreste ende af spr0jtehuset. Nâr stemplet, ved t0mning af spr0jten, er f0rt i bund, skal brugeren f0rst ved drejning af stempelstangen, og med kanylen ragende ud af spr0jten, frikoble 20 stempelhovedet med kanylen fra spr0jtehuset og der-efter trække stempelstangen med stempelhovedet tubage til en endestilling, hvor stempelstangen automa-tisk lâses til spr0jtehuset. l tilfælde af util-stærkkelig tilbagetrækning vil kanylen igen kunne 25 bevæges ud af spr0jten.
Formâlet med opfindelsen er at angive en injek-tionsspr0jte, hvor tilbagetrækningen af kanylen fore-gâr hurtigere og pâ en sikrere mâde. Dette opnâs ved 30 at indrette den indledningsvis nævnte injektions- spr0jte som angivet i den kendetegnende del af kravet.
Nèr stemplet, i den sâledes indrettede injektions-35 spr0jte, er f0rt i bund, beh0ver brugeren, for at indtrække kanylen og g0re spr0jten uegnet til gen-brug, blot at ud0ve et passende tryk pâ stempel- 2
DK 156414 B
stangen i samme retning som ved t0mning af spr0 j ten. Kanylen vil hezved automatisk blive trukket ind i spr0jten, og stempelstangen blive làst til spr0jte-huset.
5 Pâ tegningen er vist en inj ektionsspr0 j te if0lge op-findelsen, idet fig. 1 viser spr0jten f0r brugen, og 10 fig. 2 viser spr0jten efter injektionen, hvor kanylen er forsvundet op i stempelstangen, og stempelstangen er làst for tilbagetrækning.
15 Injektionsspr0jten omfatter en forspændt fjeder 5, der med et tryk pâ 300-400 gram tvinger kanylen 6 op mod bunden af spr0jtehuset 2. Kanylen 6 og fjederen 5 styres af et fjederhus 4, der enten limes eller ultralydssvejses pâ spr0jtehuset 2. Kanylen 6 har 20 pâst0bt et konisk hoved, der er 2/10 mm st0rre end hullet i bundfladen pâ spr0jtehuset 2. Nâr stempelstangen 1, der er forsynet med st0bt pakning 3, f0res i bund, vil konussen for enden skubbe bunden af spr0jtehuset 2 op i en bue, der bevirker, at hullet i 25 bunden bliver st0rre i diameter, og kanylefjederen 5 skubber kanylen 6 op i hulrummet i stempelstangen 1 med et smæld. Samtidig bliver den tynde bund i spr0j-tehuset 2 krænget ind over stempelstangens 1 lâsehak (se fig. 2), sâledes at stempelstangen 1 ikke kan 30 trækkes tilbage.

Claims (1)

  1. 3 DK 156414 B Injektionsspr0jte med kanyle ( 6 ), der kan indtrækkes og fastlâses i spr0jten, hvilken injektionsspr0jte 5 har et hus (2,4) med et spr0jtekammer indrettet med et stempel (3) og en stempelstang (1), kende-t e g n e t ved, at spr0jtekammeret over for stemplet (3) har en elastisk endevæg med et hui, at kanylen (6) i enden modsat spidsen er forsynet med et 10 .hoved omkring lndl0bsâbningen og er sâledes fjeder- pâvirket i retnlng mod den elastiske endevæg, at /hovedet llgger tætnende an mod randen af hullet, at sstempelstangen (1) rager frem foran stemplet og for-tb'il er forsynet med et hulrumm, der har en âbnlng 215 oGtver for hullet 1 den elastiske endevæg, at stempel-sStangen ( 1) omkring âbnlngen er udformet med en }konns, der vender mod den elastiske endevæg, og en 21:âserille bag konussen, at den elastiske endevæg ved .frenitrykning af stempelsta^gen mod denne kan de~ MQ fformeres sâledes, at hullet uxdvldes og tillader den fj ederpâwlrkede kanyle (6) at passere ind 1 hulrummet 1 stempèlstangen, at konussen ved yderligere fremtrykning af stempelstangen kan udvide hullet i endevæggen sâledes, at endevæggen kommer 1 Indgreb 25 med lâserillen, og at huset og stempelstangen er sâledes indrettet, at kanylen i denne stilling er helt indtrukket i spr0jten.
DK361987A 1987-07-13 1987-07-13 Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten DK156414C (da)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK361987A DK156414C (da) 1987-07-13 1987-07-13 Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten
PCT/DK1988/000116 WO1989000435A1 (en) 1987-07-13 1988-07-08 Disposable hypodermic syringe
DE8888905743T DE3874744T2 (de) 1987-07-13 1988-07-08 Hypodermische wegwerf-spritzvorrichtung.
US07/458,637 US5064419A (en) 1987-07-13 1988-07-08 Disposable hypodermic syringe
EP88905743A EP0367780B1 (en) 1987-07-13 1988-07-08 Disposable hypodermic syringe
AT88905743T ATE80557T1 (de) 1987-07-13 1988-07-08 Hypodermische wegwerf-spritzvorrichtung.
JP63506068A JP2644568B2 (ja) 1987-07-13 1988-07-08 使い捨て皮下注射器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK361987 1987-07-13
DK361987A DK156414C (da) 1987-07-13 1987-07-13 Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten

Publications (4)

Publication Number Publication Date
DK361987D0 DK361987D0 (da) 1987-07-13
DK361987A DK361987A (da) 1989-01-14
DK156414B true DK156414B (da) 1989-08-21
DK156414C DK156414C (da) 1990-01-22

Family

ID=8124949

Family Applications (1)

Application Number Title Priority Date Filing Date
DK361987A DK156414C (da) 1987-07-13 1987-07-13 Injektionssproejte med kanyle, der kan indtraekkes og fastlaases i sproejten

Country Status (7)

Country Link
US (1) US5064419A (da)
EP (1) EP0367780B1 (da)
JP (1) JP2644568B2 (da)
AT (1) ATE80557T1 (da)
DE (1) DE3874744T2 (da)
DK (1) DK156414C (da)
WO (1) WO1989000435A1 (da)

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US4973316A (en) * 1990-01-16 1990-11-27 Dysarz Edward D One handed retractable safety syringe
US4995870A (en) * 1990-05-09 1991-02-26 Baskas Morris J Disposable syringe with retractable needle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990007350A1 (en) * 1989-01-04 1990-07-12 Mueller Odd Gerhard Disposable hypodermic syringe
WO1998030261A1 (en) * 1997-01-09 1998-07-16 Syringus As Needle-retracting needle holder and syringe

Also Published As

Publication number Publication date
US5064419A (en) 1991-11-12
EP0367780A1 (en) 1990-05-16
JPH02504114A (ja) 1990-11-29
DE3874744T2 (de) 1993-04-15
WO1989000435A1 (en) 1989-01-26
DK156414C (da) 1990-01-22
EP0367780B1 (en) 1992-09-16
JP2644568B2 (ja) 1997-08-25
ATE80557T1 (de) 1992-10-15
DK361987D0 (da) 1987-07-13
DK361987A (da) 1989-01-14
DE3874744D1 (de) 1992-10-22

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