EP1239904A1 - Spritze mit einziehbarer nadelvorrichtung - Google Patents
Spritze mit einziehbarer nadelvorrichtungInfo
- 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- Withdrawn
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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1999/029541 WO2001041843A1 (en) | 1999-12-13 | 1999-12-13 | Syringe with retractable needle assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1239904A1 true EP1239904A1 (de) | 2002-09-18 |
Family
ID=22274289
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99966178A Withdrawn EP1239904A1 (de) | 1999-12-13 | 1999-12-13 | Spritze mit einziehbarer nadelvorrichtung |
EP00989257A Withdrawn EP1239900A4 (de) | 1999-12-13 | 2000-12-13 | Spritze mit zurückziehbarer nadeleinrichtung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00989257A Withdrawn EP1239900A4 (de) | 1999-12-13 | 2000-12-13 | Spritze mit zurückziehbarer nadeleinrichtung |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1239904A1 (de) |
JP (2) | JP2003516195A (de) |
AU (2) | AU2178700A (de) |
CA (2) | CA2394328A1 (de) |
WO (2) | WO2001041843A1 (de) |
Families Citing this family (9)
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 (de) * | 2005-06-01 | 2006-12-06 | Medsafe ASA | Injektionsspritze mit automatisch zurückziehbarer Nadel |
US7476215B2 (en) * | 2005-09-21 | 2009-01-13 | Choi Fat Lam | Automatic retractable safety syringe |
WO2012147415A1 (ja) * | 2011-04-28 | 2012-11-01 | テルモ株式会社 | 注射針組立体及び薬剤注射装置 |
SG11201608417RA (en) * | 2014-04-14 | 2016-11-29 | Swedish Orphan Biovitrum Ab Publ | Syringe plunger rod |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0000862A1 (de) | 1977-08-20 | 1979-03-07 | Passavant-Werke Ag | Bodenentwässerungsrinne für Nassräume |
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 |
-
1999
- 1999-12-13 EP EP99966178A patent/EP1239904A1/de not_active Withdrawn
- 1999-12-13 AU AU21787/00A patent/AU2178700A/en not_active Abandoned
- 1999-12-13 JP JP2001543187A patent/JP2003516195A/ja active Pending
- 1999-12-13 WO PCT/US1999/029541 patent/WO2001041843A1/en not_active Application Discontinuation
- 1999-12-13 CA CA002394328A patent/CA2394328A1/en not_active Abandoned
-
2000
- 2000-12-13 CA CA002394351A patent/CA2394351C/en not_active Expired - Fee Related
- 2000-12-13 WO PCT/US2000/033897 patent/WO2001041830A2/en active IP Right Grant
- 2000-12-13 JP JP2001543174A patent/JP2003521974A/ja active Pending
- 2000-12-13 EP EP00989257A patent/EP1239900A4/de not_active Withdrawn
- 2000-12-13 AU AU25792/01A patent/AU782441B2/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO0141843A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001041843A1 (en) | 2001-06-14 |
CA2394328A1 (en) | 2001-06-14 |
WO2001041830A8 (en) | 2002-06-20 |
JP2003516195A (ja) | 2003-05-13 |
JP2003521974A (ja) | 2003-07-22 |
EP1239900A4 (de) | 2007-06-06 |
AU782441B2 (en) | 2005-07-28 |
CA2394351A1 (en) | 2001-06-14 |
CA2394351C (en) | 2009-11-17 |
WO2001041830A2 (en) | 2001-06-14 |
EP1239900A2 (de) | 2002-09-18 |
WO2001041830A3 (en) | 2001-09-27 |
AU2178700A (en) | 2001-06-18 |
AU2579201A (en) | 2001-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020711 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040701 |