FR2673844A1 - Syringe with incorporated retractable needle - Google Patents
Syringe with incorporated retractable needle Download PDFInfo
- Publication number
- FR2673844A1 FR2673844A1 FR9103467A FR9103467A FR2673844A1 FR 2673844 A1 FR2673844 A1 FR 2673844A1 FR 9103467 A FR9103467 A FR 9103467A FR 9103467 A FR9103467 A FR 9103467A FR 2673844 A1 FR2673844 A1 FR 2673844A1
- Authority
- FR
- France
- Prior art keywords
- needle
- syringe
- needle holder
- holder
- housing
- 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.)
- Pending
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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
- A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
- A61M2005/3224—Means to disalign the needle tip and syringe nozzle
-
- 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
-
- 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
- A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
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
Description
DESCRIPTION
La présente invention concerne un dispositif pour rnedre rétractable dés la fin de l'injection l'aiquille intégrée d'une seringue médicale à usage unique
Le dispositif selon l'invention en fait une seringue de grande sécurité l'aiguille intégrée évite les manipulations de celle-ci précédant habituellemnt l'injection; et sa réabsorption automatique et définitive à l'intérieur de la seringue dès la fin de l'injection supprime tout risque de contagion par piqûre puisque l'aiguille potentiellement infectée par le contact de la chair du malade passe directement de la partie piquée dans le corps de la seringue de manière irréversible.DESCRIPTION
The present invention relates to a device to retract retractable from the end of injection the integrated needle of a disposable medical syringe
The device according to the invention makes it a very safe syringe the integrated needle avoids the manipulations of the latter preceding the injection usually; and its automatic and final reabsorption inside the syringe at the end of the injection eliminates any risk of contagion by injection since the needle potentially infected by the contact of the patient's flesh passes directly from the bitten part in the body of the syringe irreversibly.
Le dispositif selon l'invention comporte un corps de seringue dont l'intérieur se compose d'un piston étanche mis en mouvement par un conduit tubulaire fendu, ayant en son centre un support de porte aiguille surmonté d'un porte-aiguille et de son aiguille L'utilisateur n'aura que quelques monoeuvres simples à effectuer pour que la mise en place puis la réabsorption de l'aiguille à l'intérieur de la seringue à la fin de l'injection se fassent automatiquement.The device according to the invention comprises a syringe body the interior of which consists of a sealed piston set in motion by a split tubular conduit, having in its center a needle holder support surmounted by a needle holder and its needle The user will have only a few simple operations to perform so that the insertion and then reabsorption of the needle inside the syringe at the end of the injection are done automatically.
L'utilisateur, en référence à ces dessins, tire sur le poussoir (1) solidaire du conduit (2), lequel coulisse dans les deux fentes (3) sur la barre de fixation (4)
A l'extrémité de ce conduit, et faisant corps avec fui, est i installé un pi piston (5) creux au centre et muni d un joint d'étanchéité (6) En fin de course, la base intérieure du piston (7) s'encastre sur la saillie (8) du support du porte-aiguille (9)
La pouss#ee vers le haut du poussoir (1) solidaire du conduit (2) et du piston (5) entraîne le support du porte-aiquille (9) chapeauté du porte-aiguille (13) auquel est scéllée l'aiguille (15), vers l'orifice (10) du corps de la seringue (11).The user, with reference to these drawings, pulls on the pusher (1) integral with the conduit (2), which slides in the two slots (3) on the fixing bar (4)
At the end of this conduit, and forming a body with leakage, is installed a pi piston (5) hollow in the center and provided with a seal (6) At the end of the race, the interior base of the piston (7) fits on the projection (8) of the needle holder support (9)
The push up of the pusher (1) integral with the conduit (2) and the piston (5) drives the support of the needle holder (9) capped with the needle holder (13) to which the needle (15) is sealed ), towards the orifice (10) of the syringe body (11).
Par une légère pression la saillie (12) du porte-aiguille (13) s'engage dans le logement (14) situé à la base interne de l'orifice (10) de la seringue (11): l'aiguille (15) est en position d'utilisation (FIG. 10).By a slight pressure the projection (12) of the needle holder (13) engages in the housing (14) located at the internal base of the orifice (10) of the syringe (11): the needle (15) is in the use position (FIG. 10).
Quand l'utilisateur tire le poussoir (1) vers le bas, l'ensemble porte-aiguille (13) et aiguille (15) se libère du support du porte-aiguille (9). Le support du porte-aigulle (9) reste dans sa position grâce à la saillie (8) retenue dans le logement de transport (7) du support du porte-aiguille permettant l'aspiration du sérum dans la seringue (FIG .9). When the user pulls the plunger (1) downwards, the needle holder (13) and needle (15) assembly is released from the holder of the needle holder (9). The support of the needle holder (9) remains in its position thanks to the projection (8) retained in the transport housing (7) of the support of the needle holder allowing the aspiration of the serum into the syringe (FIG. 9).
L'injection se fait a la manière classique. A la fin de l'injenction, une pression plus forte est nécessaire pour, d'une part, accrocher le support du porte-aiguille (9) par ses ergots (16) dans le logement (17) intérieur du porte-aiguille (13), pour, d'autre part, faire passer, du logement de l'embout de centrage et de maintien (19) du porte-aiguille (13) à son longement de retrait (20), l'embout de centrage (18} du support du porte-aiguille (9); et pour, enfin, écraser le joint d'étanchéité (6) contre le haut de la seringue (i I).La mise en butée de l'embout de centrage (18) dans le logement de l'embout de retrait (20) permet le dégagement de la saillie de transport (8) du support du porte-aiguille (9) hors du logement de transport (7) du porte-aiguille (13).The injection is done in the conventional way. At the end of the injection, a higher pressure is necessary to, on the one hand, hook the support of the needle holder (9) by its pins (16) in the housing (17) inside the needle holder (13 ), on the other hand, to pass from the housing of the centering and retaining end piece (19) of the needle holder (13) to its withdrawal lengthening (20), the centering end piece (18} of the holder of the needle holder (9); and to finally crush the seal (6) against the top of the syringe (i I). The abutment of the centering tip (18) in the housing of the withdrawal end piece (20) allows the transport projection (8) of the needle holder support (9) to be released from the transport housing (7) of the needle holder (13).
Ces trois efets conjugués permettent à l'élastique excentré (21), fixé, d'une part, dans le gobelet femelle (22) et, d'autre part, dans le gobelet mâle (23) du support du porte-aiguille (9), de tirer l'ensemble support du porte-aiguille (9), porte-aiguille (13) et aiguille (15) dans le fond du conduit (2) de la seringue (11) (FIG. 11)
La réutilisation de la seringue est désormais impossible:: -le gobelet male (23) n'est plus dans son logement - l'aiguille (15) n'est plus dans son axe d d'attente - les ergots de retrait (17) deviennent auto-bloquants - l'élastique (21) détendu, fixé au gobelet mâle (23), retient le support du
porte-aiguille (9), le porte-aiguille (J3) et l'aiguile (15) - Si, malgré touts l'utilisateur tire le poussoir (1) vers lui, l'aiguille (15)
viendra heurter l'intérieur du piston (5) (FIG. 1 1}. These three combined effects allow the eccentric elastic (21), fixed, on the one hand, in the female cup (22) and, on the other hand, in the male cup (23) of the needle holder support (9 ), pull the needle holder support assembly (9), needle holder (13) and needle (15) into the bottom of the syringe tube (2) (11) (FIG. 11)
The reuse of the syringe is now impossible: -the male cup (23) is no longer in its housing - the needle (15) is no longer in its waiting axis - the withdrawal lugs (17) become self-locking - the elastic (21) relaxed, fixed to the male cup (23), retains the support of the
needle holder (9), the needle holder (J3) and the needle (15) - If, despite everything, the user pulls the plunger (1) towards him, the needle (15)
will strike the inside of the piston (5) (FIG. 1 1}.
Selon des modes particuliers de réalisation: - un ressort remplace éventuellement l'él asti que - une clavette d'arrêt limitant la course du piston (s) pour l'enclenchement
du porte-aiguille (13) sur l'orifice (10) de la seringue, est éventuellement
montée sur le conduit (2) tubulaire du poussoir(1) - l'aiguille de perçage des flacons de serum est éventuellement montée sur
l'embout extérieur de la seringue, ainsi que son fourreau de protection. According to particular embodiments: - a spring possibly replaces the elastic - a stop key limiting the stroke of the piston (s) for engagement
of the needle holder (13) on the orifice (10) of the syringe, is possibly
mounted on the tubular conduit (2) of the pusher (1) - the piercing needle for the serum bottles is optionally mounted on
the outer tip of the syringe, as well as its protective sheath.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9103467A FR2673844A1 (en) | 1991-03-15 | 1991-03-15 | Syringe with incorporated retractable needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9103467A FR2673844A1 (en) | 1991-03-15 | 1991-03-15 | Syringe with incorporated retractable needle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2673844A1 true FR2673844A1 (en) | 1992-09-18 |
Family
ID=9410997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9103467A Pending FR2673844A1 (en) | 1991-03-15 | 1991-03-15 | Syringe with incorporated retractable needle |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2673844A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001041843A1 (en) * | 1999-12-13 | 2001-06-14 | Futura Medical Technologies, Inc. | Syringe with retractable needle assembly |
EP1549365A2 (en) * | 2002-09-16 | 2005-07-06 | Futura Medical Technologies, Inc. | Syringe with retractable needle assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722215A (en) * | 1954-04-27 | 1955-11-01 | Dahlgren Stig-Ake | Spring-actuated medical syringe |
US4874382A (en) * | 1987-10-15 | 1989-10-17 | Servetus Partnership | Safety syringe |
WO1990006146A1 (en) * | 1988-12-07 | 1990-06-14 | Gaetano Nacci | Syringe which automatically makes the hypodermic needle harmless after use |
US4950241A (en) * | 1988-12-27 | 1990-08-21 | Sherwood Medical Company | Disposable syringe |
US4955870A (en) * | 1988-08-23 | 1990-09-11 | Ridderheim Kristen A | Hypodermic syringe with retractable needle |
WO1990015634A1 (en) * | 1989-06-12 | 1990-12-27 | Grape Aps | An injection syringe |
-
1991
- 1991-03-15 FR FR9103467A patent/FR2673844A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722215A (en) * | 1954-04-27 | 1955-11-01 | Dahlgren Stig-Ake | Spring-actuated medical syringe |
US4874382A (en) * | 1987-10-15 | 1989-10-17 | Servetus Partnership | Safety syringe |
US4955870A (en) * | 1988-08-23 | 1990-09-11 | Ridderheim Kristen A | Hypodermic syringe with retractable needle |
WO1990006146A1 (en) * | 1988-12-07 | 1990-06-14 | Gaetano Nacci | Syringe which automatically makes the hypodermic needle harmless after use |
US4950241A (en) * | 1988-12-27 | 1990-08-21 | Sherwood Medical Company | Disposable syringe |
WO1990015634A1 (en) * | 1989-06-12 | 1990-12-27 | Grape Aps | An injection syringe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001041843A1 (en) * | 1999-12-13 | 2001-06-14 | Futura Medical Technologies, Inc. | Syringe with retractable needle assembly |
EP1239900A2 (en) * | 1999-12-13 | 2002-09-18 | Futura Medical Technologies Inc. | Syringe with retractable needle assembly |
EP1239900A4 (en) * | 1999-12-13 | 2007-06-06 | Futura Medical Technologies Inc | Syringe with retractable needle assembly |
EP1549365A2 (en) * | 2002-09-16 | 2005-07-06 | Futura Medical Technologies, Inc. | Syringe with retractable needle assembly |
EP1549365A4 (en) * | 2002-09-16 | 2006-08-23 | Futura Medical Technologies Inc | Syringe with retractable needle assembly |
CN100448491C (en) * | 2002-09-16 | 2009-01-07 | 未来医疗技术公司 | Syringe with retractable needle assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RT | Complete renunciation |