EP1239904A1 - Seringue ensemble aiguille r tractable - Google Patents

Seringue ensemble aiguille r tractable

Info

Publication number
EP1239904A1
EP1239904A1 EP99966178A EP99966178A EP1239904A1 EP 1239904 A1 EP1239904 A1 EP 1239904A1 EP 99966178 A EP99966178 A EP 99966178A EP 99966178 A EP99966178 A EP 99966178A EP 1239904 A1 EP1239904 A1 EP 1239904A1
Authority
EP
European Patent Office
Prior art keywords
syringe
assembly
hollow body
plunger
catch
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.)
Withdrawn
Application number
EP99966178A
Other languages
German (de)
English (en)
Inventor
Vance D. Campbell, Jr.
Joseph Nebolon
Robert D. Adams
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.)
Futura Medical Technologies Inc
Original Assignee
Futura Medical Technologies Inc
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 Futura Medical Technologies Inc filed Critical Futura Medical Technologies Inc
Publication of EP1239904A1 publication Critical patent/EP1239904A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod

Definitions

  • the present invention relates generally to protection against an accidental
  • invention relates to a retractable needle syringe for protection from an accidental
  • the present invention relates to an automatic
  • U.S. Patent No. 5,209,739 discloses a hypodermic needle assembly and a
  • a separate mechanical device must be independently operated by the
  • European Patent No. 0 862 Al discloses a device in which a needle is
  • the device requires the
  • the elastic member is not
  • the devices operate successfully, it has been found that the devices may have a
  • the present invention relates to a disposable, single use syringe including
  • a hollow body a retractable needle assembly positioned in the hollow body, and a
  • the plunger assembly in the hollow body.
  • the plunger assembly includes an elongated frame portion extending between a sealing platform and a catch platform and
  • the sealing platform defining at least one guide track between the platforms.
  • a retraction member is releasably secured to
  • a retention member extends between the retraction member and the catch member.
  • assembly depends from the catch platform and is configured to receive and secure
  • the retraction member have complimentary mating members, whereby the tension
  • Figure 1 is an expanded view of a syringe assembly in accordance with the
  • Figure 2 is a cross sectional view of the preferred syringe barrel.
  • Figure 3 is an exploded view of the closed end of the syringe barrel of
  • Figure 4 is a side elevation of the needle assembly.
  • Figure 5 is an isometric view of the preferred plunger assembly of the
  • Figure 6 is a cross sectional view of the plunger frame of the plunger
  • Figure 7 is an exploded view of the sealing end of the plunger frame of
  • Figure 8 is a cross sectional view of the plunger assembly along the line 8-8
  • Figure 9 is an exploded view of the retention end of the plunger assembly
  • Figure 10 is a side elevation view of the preferred mandrel of the present
  • Figure 11 is a side elevation view of the preferred catch plate of the present
  • Figure 12 illustrates the preferred syringe in an assembled but unused
  • Figure 13 illustrates the syringe of Figure 12 upon initial substantial
  • Figure 14 illustrates the syringe of Figure 12 after loading of the syringe.
  • Figure 15 illustrates the forward portion of the syringe of Figure 12 as it is
  • Figure 16 illustrates the forward portion of the syringe of Figure 12 upon
  • Figure 17 illustrates the forward portion of the syringe of Figure 12 after the mandrel tip has entered the needle assembly cavity.
  • Figure 18 illustrates the forward portion of the syringe of Figure 12 upon
  • Figure 19 illustrates the syringe of Figure 12 after retraction of the needle
  • Figure 20 shows the plunger assembly members formed from the first
  • Figure 21 shows the plunger assembly as formed from the second injection
  • the syringe assembly 8 is comprised generally
  • the cap member 10 includes an open, mating end 12 and a closed cone
  • the mating end 12 is preferably configured to slidingly engage the
  • the mating end 12 may be provided with threads
  • the closed cone section 14 preferably includes a plurality of ribs
  • the syringe barrel 40 is comprised of a hollow
  • stabilized grip member 56 extends from the body 42 proximate, but forward the
  • the grip member 56 may have various configurations, the preferred
  • the open end 54 defines an open cavity 58 rear of the internal annular shoulder 60.
  • An internal annular lip 62 may also be provided adjacent the open end 54.
  • the closed end 44 is defined by a truncated cone 46 which includes a
  • a retaining groove 50 that retains the
  • needle assembly 70 in position during use as will be described in more detail
  • the needle assembly 70 is comprised of a needle 72
  • the interior passage 78 of needle assembly 70 communicates with the
  • the cavity 80 has
  • the needle 72 is positioned within the syringe barrel 40 such that the needle 72 extends
  • the plunger assembly 100 includes a
  • plunger frame 110 a retraction assembly 160, a thumb pad 104 and a sealing
  • the plunger frame 110 includes a retention end 114 and a sealing
  • opposed connecting rods 126 define opposed retraction assembly guide tracks 128.
  • the sealing end 130 includes an apertured shelf 132 extending between the
  • the apertures are preferably
  • the aperture 140 is preferably tapered
  • annular ring 142 extends into the aperture 140
  • An external annular retaining ring 136 is
  • the retention end 114 of plunger frame 110 includes
  • An annular thumb pad retaining ring 117 extends about the terminating
  • a guide member 118 may extend outward from each
  • the preferred retention assembly 120 includes a pair of opposed L-
  • each L-shaped member having a beveled catch 124 extending
  • Each component of the plunger frame 110 is preferably manufactured from
  • polypropylene or glass filled polypropylene Other materials, including various combinations
  • plunger sealing member 150 is positioned about the
  • the sealing member 150 includes annular seals 152 and 154 at
  • annular seal 152 sealingly
  • Annular seal 154 may also sealingly engage
  • the hollow body 142 may also include a passage to prevent creating a vacuum
  • the sealing member 150 is preferably manufactured
  • Shell Oil A preferred material is KratonTM G2706 manufactured by Shell Oil. As
  • the sealing member 150 is preferably
  • the retention end 114 of plunger frame 110 can be utilized with the
  • terminating plate 116 only. However, it is preferable to provide a thumb pad 104
  • the thumb pad 104 is also preferably manufactured from an elastomer
  • thumb pad 104 be overmolded directly in position, but it too may be manufactured
  • the retention assembly 160 includes a mandrel 170, a catch
  • the shaft portion 180 includes a plurality of barbs
  • annular stop 184 extends about the cylindrical body 172
  • the stop 184 is preferably elastomeric and therefore is
  • the catch plate 190 includes an elongated
  • barbs 196 or the like extending therefrom for retaining the resilient member 164.
  • a second shaft 198 extends from the opposite side of the elongated plate 192 and
  • the tip 200 is configured
  • the mandrel 170 and the catch plate 190 are preferably manufactured from
  • the resilient member 164 extends between the mandrel 170 and the catch
  • the resilient member 164 is manufactured from a resilient material
  • the resilient member 164 is preferably manufactured from KratonTM. In the preferred method of manufacture described
  • the resilient member 164 is formed between the mandrel 170 and the catch
  • member 10 may be mated with the closed end 44 of the syringe barrel 40 either
  • the plunger assembly 100 is assembled by assembling the plunger frame
  • the resilient member 164 is preferably molded directly to the mandrel 170 and catch plate 190, to form
  • the resilient member 164 is
  • the mandrel 170 is
  • the mandrel retaining ring 178 forms a fluid tight seal with the
  • the resilient stop 184 abuts against the rear surface of the shelf 132,
  • seal provided by the resilient stop 184 helps prevent air or other materials from be
  • the plunger assembly 100 is ready to be
  • the plunger assembly 100 is inserted.
  • the plunger assembly 100 is inserted approximately half-way into
  • the catch plate 190 can be secured to the retention assembly 120 prior to packaging, whereby the syringe 8 would have
  • thumb pad 104 to depress the plunger assembly 100 into the syringe barrel 40 with
  • resilient member 164 begins to stretch and tension. As travel continues forward,
  • the catch plate geometrically configured tip 200 mates with and is retained by the
  • resilient member 164 is thereby tensioned in a loaded condition between the
  • an audible "click” may occur to provide a signal of proper
  • the syringe 8 can be loaded in a typical fashion by removing the cap 10, inserting the needle 42 into a desired vial
  • the device 8 is ready for injection of the needle 72 into the patient.
  • the resilient member 164 is tensioned between two fixed components
  • the mandrel tip 176 begins to enter the needle assembly cavity 80.
  • first annular seal 152 meets and is deflected by
  • the needle assembly 70 is permitted to pass the deflected annular seal 152 into the
  • the second annular seal 154 may remain
  • annular seal 154 may
  • the mandrel tip 176 passes through the needle assembly cavity cylindrical
  • portion 80a into the geometrically configured cavity hemispherical portion 80b
  • the thumb pad 104 enters the open cavity 58 at the end of the syringe barrel
  • the thumb pad 104 is manufactured from a
  • the thumb pad 104 preferably has a semi-domed configuration which enhances its inaccessibility.
  • thumb pad 104 is preferably inserted past the inner annular lip 62
  • the plunger frame 110 components (the retention end 114, the sealing end
  • the catch plate 190 in a single shot of the desired material, in the preferred
  • polypropylene polypropylene.
  • the resultant component is shown in Figure 20.
  • catch plate 190 are then positioned in a second mold cavity. Using a
  • KratonTM the resilient member 164, stop 184, sealing member 150
  • thumb pad 104 are formed directly over the corresponding parts of the plunger
  • the runners 210 can be trimmed between the catch plate 190 and the connecting
  • plunger assembly 100 is ready for use in accordance with the above.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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)

Abstract

Cette seringue jetable à usage unique comprend un corps creux, un ensemble aiguille rétractable ainsi qu'un ensemble piston placés dans ce corps creux. L'ensemble piston possède une partie formant un bâti de forme allongée comprenant au moins une voie de guidage entre ses extrémités. Un élément d'escamotage est fixé, mais non à demeure, à une extrémité du bâti et un élément de prise comportant une tête de prise est mis en place par un guide conçu pour se déplacer dans la voie de guidage du bâti du piston. Une pièce en élastomère s'étend entre l'élément d'escamotage et l'élément de prise. Un ensemble de retenue part de l'extrémité opposée du bâti du piston et est configuré pour recevoir et immobiliser la tête de prise et, partant, mettre sous tension l'élément en élastomère. L'ensemble aiguille et l'élément d'escamotage sont pourvus de pièces complémentaires d'accouplement, la tension s'exerçant sur l'élément en élastomère étant, de ce fait, supprimée lorsque l'ensemble aiguille et l'élément d'escamotage s'accouplent, le système d'injection étant alors attiré dans le corps creux. L'invention porte également sur un procédé de production.
EP99966178A 1999-12-13 1999-12-13 Seringue ensemble aiguille r tractable Withdrawn EP1239904A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1999/029541 WO2001041843A1 (fr) 1999-12-13 1999-12-13 Seringue à ensemble aiguille rétractable

Publications (1)

Publication Number Publication Date
EP1239904A1 true EP1239904A1 (fr) 2002-09-18

Family

ID=22274289

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99966178A Withdrawn EP1239904A1 (fr) 1999-12-13 1999-12-13 Seringue ensemble aiguille r tractable
EP00989257A Withdrawn EP1239900A4 (fr) 1999-12-13 2000-12-13 Seringue a ensemble d'aiguille escamotable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00989257A Withdrawn EP1239900A4 (fr) 1999-12-13 2000-12-13 Seringue a ensemble d'aiguille escamotable

Country Status (5)

Country Link
EP (2) EP1239904A1 (fr)
JP (2) JP2003516195A (fr)
AU (2) AU2178700A (fr)
CA (2) CA2394328A1 (fr)
WO (2) WO2001041843A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7044931B2 (en) 2000-12-13 2006-05-16 Hypoguard Usa Inc. Syringe with retractable needle assembly
US6676641B2 (en) * 2001-09-05 2004-01-13 Futura Medical Technologies, Inc. Retractable hypodermic syringe
SG117401A1 (en) * 2002-01-11 2005-12-29 Systems Automation S Pte Ltd F An apparatus and process for manufacturing a medical safety device
US7393343B2 (en) 2002-07-02 2008-07-01 Hypoguard Usa Inc. Retractable hypodermic syringe
US7494479B2 (en) * 2002-09-16 2009-02-24 Medsolve Technologies, Inc. Syringe with retractable needle assembly
EP1728530A1 (fr) * 2005-06-01 2006-12-06 Medsafe ASA Seringue d'injection avec aiguille retractée automatiquement
US7476215B2 (en) * 2005-09-21 2009-01-13 Choi Fat Lam Automatic retractable safety syringe
WO2012147415A1 (fr) * 2011-04-28 2012-11-01 テルモ株式会社 Ensemble aiguille d'injection et dispositif d'injection de médicament
SMT202100458T1 (it) 2014-04-14 2021-09-14 Swedish Orphan Biovitrum Ab Publ Asta di stantuffo di siringa

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Publication number Priority date Publication date Assignee Title
EP0000862A1 (fr) 1977-08-20 1979-03-07 Passavant-Werke Ag Caniveau d'écoulement de plancher pour chambres humides
US4904242A (en) * 1987-04-29 1990-02-27 Kulli John C Phlebotomy set with safety retracting needle
FR2673844A1 (fr) * 1991-03-15 1992-09-18 Gherrak Elie Seringue a aiguille integree retractile.
IT1248456B (it) * 1991-03-18 1995-01-19 Profarm Spa Siringa autobloccante
US5267961A (en) * 1991-04-03 1993-12-07 Shaw Thomas J Nonreusable syringe with safety indicator
US5211628A (en) * 1991-09-30 1993-05-18 Marshall John M Syringe with automatic retracting needle
US5209739A (en) 1992-06-23 1993-05-11 Leon Talalay Hypodermic needle
US5320606A (en) * 1993-03-17 1994-06-14 Jore Matthew B Single use hypodermic safety syringe
US5395337A (en) * 1993-08-31 1995-03-07 Clemens; Anton H. Needle retraction system
US5458576A (en) * 1993-12-22 1995-10-17 Habley Medical Technology Corp. Safety syringe with retracting needle
NL9401173A (nl) * 1994-07-15 1996-02-01 A P I S Medical Bv Voorgevuld injektiespuitsamenstel.
US5836917A (en) 1995-01-10 1998-11-17 Specialized Health Products, Inc. Self retracting medical needle apparatus and methods
US5533975A (en) * 1995-10-06 1996-07-09 Lu; Wen-Chin Safety syringe with reliably externally connectable and internally retractable self-biased needle
US5693023A (en) 1996-11-15 1997-12-02 Adventec, Inc. Syringe with retractable needle assembly
US5993417A (en) * 1998-01-06 1999-11-30 Yerfino; Daniel Alberto Disposable syringe with an automatically retractable hypodermic needle
US5938641A (en) * 1998-01-07 1999-08-17 Villanueva; George Safety syringe
US5971964A (en) * 1999-01-14 1999-10-26 Donaldson; Neil Retractable syringe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0141843A1 *

Also Published As

Publication number Publication date
CA2394351A1 (fr) 2001-06-14
JP2003521974A (ja) 2003-07-22
CA2394328A1 (fr) 2001-06-14
AU782441B2 (en) 2005-07-28
AU2178700A (en) 2001-06-18
EP1239900A4 (fr) 2007-06-06
WO2001041830A2 (fr) 2001-06-14
CA2394351C (fr) 2009-11-17
WO2001041830A3 (fr) 2001-09-27
WO2001041830A8 (fr) 2002-06-20
WO2001041843A1 (fr) 2001-06-14
EP1239900A2 (fr) 2002-09-18
AU2579201A (en) 2001-06-18
JP2003516195A (ja) 2003-05-13

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