WO2015114318A1 - Dispositif de sécurité pour aiguille médicale - Google Patents

Dispositif de sécurité pour aiguille médicale Download PDF

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Publication number
WO2015114318A1
WO2015114318A1 PCT/GB2015/050184 GB2015050184W WO2015114318A1 WO 2015114318 A1 WO2015114318 A1 WO 2015114318A1 GB 2015050184 W GB2015050184 W GB 2015050184W WO 2015114318 A1 WO2015114318 A1 WO 2015114318A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
sleeve
mount
safety device
shielding position
Prior art date
Application number
PCT/GB2015/050184
Other languages
English (en)
Inventor
Barry P. LIVERSIDGE
Original Assignee
Liversidge Barry P
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 Liversidge Barry P filed Critical Liversidge Barry P
Publication of WO2015114318A1 publication Critical patent/WO2015114318A1/fr

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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257—Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • 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
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3107—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle for needles
    • A61M2005/3109—Caps sealing the needle bore by use of, e.g. air-hardening adhesive, elastomer or epoxy resin
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • 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
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/326—Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
    • A61M2005/3267—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
    • A61M2005/3268—Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body having cantilever elastically spreadable arms, e.g. to accumulate energy during needle uncovering movement for urging protection sleeve to return to needle covering position
    • 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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps
    • A61M5/3204—Needle cap remover, i.e. devices to dislodge protection cover from needle or needle hub, e.g. deshielding devices

Definitions

  • This invention relates to a safety device for a medical needle having a sharp tip and mounted in a hub spaced from the tip, the needle being intended for penetration of a human or animal body, or for other medical uses such as the penetration of a pierceable membrane of an intravenous medication system.
  • the invention further relates to the combination of a safety device as aforesaid and a medical needle associated with the housing of the safety device to project forwardly from the housing, for exposure beyond a sleeve slidable telescopically with respect to the housing.
  • the invention relates to the combination of a medical needle safety device as aforesaid and a container for the safety device to serve as a package for that device until the device is required for use.
  • forward and forwardly used in relation to the safety device and a syringe refer to the end thereof which is approached to a body when a procedure is to be performed, and the direction towards that end.
  • rearward and rearwardly refer to the end of the safety device opposed to the forward end and the direction away from that forward end.
  • Fluids of various kinds may be administered to a human or animal body by means of a hollow needle in conjunction with a source of the required fluid.
  • a needle may be used in conjunction with a syringe holding a liquid drug which may be contained directly in the syringe barrel or in a cartridge located within the syringe, the needle being used to penetrate the body at the site at which the drug is to be received.
  • body fluids may be withdrawn by using a hollow needle which is used to penetrate the body until the tip is located at the site from which fluid is to be withdrawn.
  • needle-stick injury Prior to the use of the needle to supply a fluid to or to withdraw fluid from a body, this rarely presents much of a problem, though once the needle has been used on a body, there is a very much higher risk of a serious consequence for a person suffering a needle-stick injury.
  • the needle is likely to become contaminated with various organisms; should a person subsequently suffer a needle-stick injury, infection could occur.
  • a device which protects a needle tip after use without an operator having to perform any extra step on withdrawing the needle from a body is usually referred to as a passive protection device.
  • an active protection device where an operator is required to perform an extra step in order to protect a needle, following the withdrawal of the needle from a body.
  • One known form of such a device requires the operator to apply extra pressure to the syringe plunger following completion of the injection and the withdrawal of the needle from the patient but the requirement to apply extra pressure often means that the operator merely throws the used syringe into a sharps container, without giving protection to the needle tip.
  • Another device requires the operator to apply lateral pressure to the needle to bend the needle into engagement with a cap supported adjacent the unbent needle tip. This carries significant risks for the operator, who has to apply pressure very close to the needle tip and thus there is a likelihood of the operator accidentally contacting the needle tip.
  • a safety device for shielding a medical needle having a sharp tip which device comprises:
  • a needle mount for directly or indirectly supporting a medical needle
  • a needle shielding sleeve for surrounding a supported needle and cover and arranged coaxially with the mount for sliding rearward movement relative to the mount from a shielding position whereat the sleeve substantially fully surrounds the needle cover towards a non-shielding position whereat a substantial part of the cover is exposed beyond the forward end of the sleeve;
  • the finger having an inner surface for sliding on the sliding surface on rearward movement of the sleeve, said rearward movement thereby resiliently deforming the finger to store energy therein to assist the return of the sleeve to a needle shielding position; whereby rearward movement of the sleeve to the non-shielding position exposes the cover for removal.
  • the safety device of this invention is relatively simple and yet provides safety to a medical needle having a sharp tip.
  • the arrangement is such that the needle cover cannot be easily accessed for removal until the needle shielding sleeve has been moved towards a non- shielding position but when in that position, the cover can be removed by grasping the part of the cover exposed beyond the sleeve and then pulling the cover away from the needle.
  • movement of the sleeve towards the non-shielding position allows the cover to fall away from the device under gravity, by appropriate downward tilting or pointing of the device.
  • a latching mechanism arranged to latch the sleeve at the non-shielding position until unlatched for return of the sleeve to the shielding position, whereby the sleeve remains in the non-shielding position following the removal of the needle cover.
  • a latching mechanism may comprise a lug formed on said one of the sleeve and mount and a camming surface provided on the inner surface of the finger for interacting with the lug to hold the sleeve at the non-shielding position.
  • the latching mechanism is arranged to hold the sleeve in the non-shielding position by friction between overlying parts of the sleeve and the mount.
  • the mount may comprise the combination of a needle hub and a syringe, and in this case the friction may occur between the sleeve and the syringe, or perhaps a label carried by the syringe, such as a self-adhesive label adhered to the syringe.
  • the safety device preferably has a blocking mechanism arranged to block rearward movement of the sleeve from the shielding position, unless rendered inactive.
  • the blocking mechanism my perform a blocking action when the sleeve is returned to a shielding position from the non-shielding position, but the blocking mechanism being rendered inactive on initial movement of the sleeve from a needle shielding position towards a non- shielding position.
  • a blocking mechanism may comprise an abutment surface provided on said one of the sleeve and mount, and the finger has a part in radial alignment with the abutment surface when the finger is undeformed to block movement of the sleeve from its needle shielding position. Conveniently, that part of the finger in radial alignment with the abutment surface when the finger is undeformed comprises the free end of the finger.
  • a control member having an initial position for interaction with the blocking mechanism to render the blocking mechanism inactive and so allow movement of the sleeve from the needle shielding position towards the non-shielding position, and when the control member is displaced from its initial position the blocking mechanism is active and so operates to block rearward movement of the sleeve.
  • the control member when in its initial position may serve to deliver the finger on to the sliding surface such that relative movement between the sleeve and mount deforms the finger to store energy therein.
  • control member is arranged for displacement from said initial position thereof by the movement of the sleeve from the non-shielding position to the shielding position.
  • control member may be mounted within the sleeve for axial sliding movement with respect thereto, the control member being displaced from its initial position by the movement of the sleeve from its non- shielding position to its shielding position.
  • control member may comprise a part of the needle cover and the removal of the needle cover displaces the control member (being a part of the needle cover) from its initial position.
  • a lug formed on one of the sleeve and mount, and which also includes a blocking mechanism having an abutment surface for interaction with a part of the finger, that lug may provide both the sliding surface for the latching mechanism and the abutment surface for the blocking mechanism.
  • the sliding surface is provided on the mount and the resiliently flexible finger is provided on the sleeve.
  • the sleeve when in the shielding position interacts with the needle cover to resist movement of the needle cover in the forward direction, off the needle. Further, the sleeve when in the shielding position may hold the rearward end of the needle cover in contact with the needle mount.
  • the needle mount may comprise a syringe having a needle permanently affixed thereto, or may comprise a support for a needle hub having a needle projecting forwardly therefrom, the needle mount being configured for mounting on an injection device, such as a syringe.
  • Figure 1 is an exploded isometric view of the first embodiment of an active needle protection device, together with a syringe having a permanently attached staked-in needle, which syringe is typically pre-filled with a liquid medicament;
  • Figure 2 shows the device and syringe of Figure 1 , assembled together
  • Figure 3 shows the device prepared for performing an injection
  • Figure 4 shows the prepared device following removal of the needle cover
  • Figure 5 shows the device following the performance of an injection and with the needle protected by the sleeve of the device
  • Figure 6 is an axial cross-section on an enlarged scale of the device of Figure 2, when fitted to a syringe;
  • Figure 7 is a view similar to that of Figure 6 but showing the start of preparing the device for the performance of an injection
  • Figure 8 is a view similar to that of Figure 7 but showing the device partly prepared for the performance of an injection
  • Figure 9 is a view similar to that of Figure 8 but with the device fully prepared and the needle cover removed;
  • Figure 10 is a view similar to that of Figure 6 but at the completion of a medical procedure and with the sleeve blocked in a needle shielding position;
  • Figure 1 1 illustrates an operator activating the device to give protection to the needle, following the performance of a procedure
  • Figure 12 shows the second embodiment of device together with a syringe barrel having a permanently attached staked-in needle but before filling of the syringe with a liquid medicament;
  • Figure 13 shows the device and syringe barrel of Figure 12, assembled together
  • Figure 14 shows the assembly of Figure 13 but following filling of the syringe barrel with a liquid medicament and then the stoppering of the barrel and the attachment of a plunger to the stopper;
  • Figure 15 shows the device prepared for performing an injection
  • Figure 16 shows the device following removal of the needle cover
  • Figure 17 shows the device following the performance of an injection and with the needle protected by the sleeve of the device
  • Figure 18 is an exploded view on the device and the syringe barrel of Figure 13;
  • Figures 19A and 19B are respectively isometric and side views with the device having part of the cover cut away for clarity;
  • Figures 20 to 24 show the successive steps of preparing the second embodiment of device through to completion of a medical procedure with the sleeve blocked in a protecting position, generally corresponding to Figures 7 to 10 for the first embodiment.
  • the device 10 comprises a mount 1 1 , a ring-shaped control member 12, a resilient needle cover 13 and a protection sleeve 14.
  • the syringe 15 is entirely conventional and as shown is in a ready-to-fill format, typically by location in an apertured tray along with a plurality of similar syringes all having a respective safety device attached thereto.
  • the syringe comprises a barrel 16, typically of glass, having a staked-in needle 17 held in the syringe nose 18 by an adhesive 19, and a plunger 20 having an enlarged head 21 .
  • the syringe may be pre-filled with a liquid medicament in an automatic machine pre-filling a plurality of the syringes held in a tray, the medicament being driven out of the syringe barrel 16 through the needle 17 by a stopper (not shown) acting as a piston and mounted on the forward end of the plunger 20.
  • a stopper acting as a piston and mounted on the forward end of the plunger 20.
  • the syringe may be filled with a medicament drawn up from a vial through the needle 17.
  • the forward end of the barrel 16 merges into the nose 18 which tapers towards the forward end of the nose, whereat there is an annular rib 24.
  • This profile is also conventional and has been developed to allow the use of a resilient needle cover which may be snap-fitted to the nose of the syringe to resist so-called pop-off when the syringe and cover are subjected to pressure changes such as may occur during filling of the syringe barrel, sterilisation or storage, and also to retain the cover in position before use.
  • the resilient needle cover may have a rigid plastic outer sheath, and so take the form of a rigid needle shield (RNS).
  • the mount 1 1 has an internal profile best seen in Figures 6 to 10 which enables the mount to be snap-fitted on to the tapered part of the nose 18, the forward radial face 25 of the mount engaging rearwardly of the rib 24.
  • the mount is mostly frusto-conical in external shape but can include a pair of diametrically opposed regions each of which includes a first surface 26 extending rearwardly from the forward end of the mount and a lug 27 at the rearward end of that first surface.
  • the lug defines a forward-facing abutment surface 28 and a sliding surface 29 (see particularly Figures 6 to 10) and a rearward-facing shoulder 30.
  • the control member 12 comprises a simple cylindrical annulus the inner diameter of which fits over the rib 24 of the syringe nose and, in the initial setting of the device, lies closely adjacent the radial face 25 of the mount. The purpose of the control member will be described in further detail below.
  • the sleeve 14 of the device is mostly cylindrical and is a sliding fit over the barrel 16 of the syringe but the sleeve includes a pair of diametrically opposed slots 31 formed therein to extend parallel to the sleeve axis.
  • a resiliently deformable finger 32 In each slot there is provided a resiliently deformable finger 32, the forward end 33 of the finger being conjoined to the sleeve at the forward end of the slot.
  • the rearward end 34 of the finger is free and normally lies generally within the slot but the finger may be resiliently flexed outwardly, as shown for example in Figures 7 to 9.
  • Each finger has a camming surface 35 on its inner face, for interacting with the respective lug 27 of the mount 1 1 and the rearward end 34 of the finger is profiled for interacting with the abutment surface 28 of the lug, as will be described hereinbelow.
  • the sleeve 14 has an in-turned flange 36 with a central hole 37 through which the needle 17 of a connected syringe may project, when the sleeve has been moved rearwardly.
  • the needle cover 13 is of a resilient elastomeric material and defines an axial opening 38 from its rear end within which the needle 17 is accommodated, the sharp tip of the needle penetrating the material of the cover so as to be stoppered thereby and prevent medicament pre-filled in the syringe barrel from dribbling out of the needle.
  • the mount 1 1 is positioned on the syringe nose 18, the needle cover 13 cannot locate thereon in the conventional manner.
  • FIG. 6 shows the device in its initial setting where the fingers 32 are lying in their respective slots 31 and the needle cover 13 is inaccessible and so cannot be removed from within the sleeve 14, to give access to the needle 17.
  • the device When the device, as mounted on a syringe, is to be used to perform an injection, the device must be prepared for use by manually moving the sleeve 14 rearwardly with respect to the syringe 15. In the first stage of this rearward movement, the rearward ends of the camming surfaces 35 on the fingers 32 engage and move on to the outer surface of the control member 12 ( Figure 7) so moving the forward ends 33 of the fingers outwardly such that those rearward ends no longer are aligned with the abutment surfaces 28. In this initial movement of the sleeve, the cover 13 is slightly compressed axially.
  • the syringe and device is pulled away from a patient and then the sleeve 14 is pushed forwardly by the operator, typically using a forefinger of the hand used to perform the injection and depress the plunger 20.
  • This action is shown in Figure 1 1 .
  • the forward ends of the camming surfaces 35 move on to the sliding surfaces 29 of the lugs 27 whereafter further forward movement of the sleeve is assisted by those fingers 32 attempting to move to their initial positions disposed within the slots 31 , and so urging the sleeve forwardly.
  • the camming surfaces contact the control member 12 and then pull that control member forwardly off the nose of the syringe, so that the control member is located in a forward part of the sleeve.
  • Another possibility is for there to be friction between the sleeve and the control member which serves to retain the control member in a forward part of the sleeve.
  • the second embodiment of active needle protection device of this invention is shown in Figures 12 to 24, and differs from the first embodiment in that no separate control member is provided; rather, the function of the control member is provided by the needle cover itself.
  • like parts having the same function in the two embodiments will be given the same reference numbers and will not be described again in detail here.
  • Figure 12 shows the syringe barrel 16 and needle 17 before the filling of the syringe with a liquid medicament and the fitting of the plunger 20 to the barrel.
  • the mount 44 is essentially the same as that of the first embodiment but has a slightly greater rearward extent beyond the lugs 27.
  • the sleeve 14 is the same as that of the first embodiment and the device is fitted to the syringe nose 18 in the same manner as described above with reference to the first embodiment, but before the filling of the syringe with medicament, typically by being located in an aperture of a tray carried by a tub along with a plurality of like syringes for filling by an automated machine.
  • the device includes a needle cover 45, that cover is fitted to the syringe and needle prior to filling, to stopper the sharp tip of the needle, to complete the assembly of Figure 13.
  • the syringe barrel is then filled with a medicament in a conventional manner and the plunger 20 together with the stopper is inserted into the barrel 16 ( Figure 14).
  • the device is initialised by sliding the sleeve rearwardly, so flexing the fingers 32 outwardly (Figure 15) this exposing the needle cover 45 so that the needle cover may be grasped and pulled away from the device to expose the needle ( Figure 16), or being allowed to fall away.
  • the sleeve 14 is pushed forwardly as described with reference to the first embodiment, with the fingers assisting the movement of the sleeve forwardly. This is continued until the rearward ends 34 of the fingers are wholly disposed in the slots 31 , adjacent the abutment surfaces 28 ( Figure 17), so blocking the sleeve against subsequent rearward movement, to confer protection to the sharp tip of the needle.
  • the functionality of the control member 12 of the first embodiment is provided by the needle cover 45 itself.
  • the needle cover is furnished with a control ring 46 near to, but displaced rearwardly from, the forward end of the cover.
  • the control ring could be an integral part of the control member, or could be a separate component fitted thereto.
  • the inwardly-directed surface of each finger 32 is somewhat differently profiled as compared to the first embodiment.
  • the internal surface of each finger has a relatively short camming surface 47 near the forward end thereof, which bears on the control ring 46 when the sleeve 14 is in its initial position ( Figures 19A and 19B).

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

Abstract

Un dispositif de sécurité (10) permettant de protéger une aiguille médicale (17) comprend une embase d'aiguille (11) et un protecteur d'aiguille (13) qui va venir recouvrir une aiguille fixée sur l'embase. Une gaine de protection d'aiguille (14) est disposée de façon coaxiale avec l'embase et peut être amenée à coulisser vers l'arrière par rapport à l'embase afin de passer d'une position protégée à une position non protégée dans laquelle le protecteur d'aiguille (13), qui dépasse de l'extrémité avant de la gaine, est découvert. Une surface de coulissement (29) est présente sur l'embase (11) et au moins une tige allongée élastiquement flexible (32) est présente sur la gaine (14) et peut coulisser sur la surface de coulissement (29) suite au déplacement vers l'arrière de la gaine (14). Le mouvement vers l'arrière de la gaine (14) déforme de façon élastique la tige de façon à ce qu'elle emmagasine de l'énergie pour contribuer au retour de la gaine en position de protection de l'aiguille, et laisse également apparaître le protecteur pour pouvoir le retirer.
PCT/GB2015/050184 2014-01-28 2015-01-27 Dispositif de sécurité pour aiguille médicale WO2015114318A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1401456.7 2014-01-28
GBGB1401456.7A GB201401456D0 (en) 2014-01-28 2014-01-28 Medical needle safety device

Publications (1)

Publication Number Publication Date
WO2015114318A1 true WO2015114318A1 (fr) 2015-08-06

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WO (1) WO2015114318A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3088826A1 (fr) * 2018-11-27 2020-05-29 Nemera La Verpilliere Organe de retrait d’un capuchon de protection d’aiguille
CN114344629A (zh) * 2015-12-08 2022-04-15 贝克顿迪金森法国公司 用于医用注射器的帽
WO2024038285A1 (fr) 2022-08-19 2024-02-22 Tip-Top.Com Ltd Rétroaction sensorielle pour ensemble aiguille de sécurité

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050049561A1 (en) * 2003-08-28 2005-03-03 Edgar Hommann Administering device wtih a protective cap removing device and a needle protecting sleeve locking means
FR2871705A1 (fr) * 2004-06-18 2005-12-23 Mb Innovation Sarl Dispositif a usage unique d'injection d'un fluide medicamenteux
WO2012073040A1 (fr) * 2010-12-03 2012-06-07 Barry P Liversidge Dispositif médical de sécurité d'aiguille

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050049561A1 (en) * 2003-08-28 2005-03-03 Edgar Hommann Administering device wtih a protective cap removing device and a needle protecting sleeve locking means
FR2871705A1 (fr) * 2004-06-18 2005-12-23 Mb Innovation Sarl Dispositif a usage unique d'injection d'un fluide medicamenteux
WO2012073040A1 (fr) * 2010-12-03 2012-06-07 Barry P Liversidge Dispositif médical de sécurité d'aiguille

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114344629A (zh) * 2015-12-08 2022-04-15 贝克顿迪金森法国公司 用于医用注射器的帽
FR3088826A1 (fr) * 2018-11-27 2020-05-29 Nemera La Verpilliere Organe de retrait d’un capuchon de protection d’aiguille
EP3659652A1 (fr) * 2018-11-27 2020-06-03 Nemera La Verpilliere Organe de retrait d'un capuchon de protection d'aiguille
US11419989B2 (en) 2018-11-27 2022-08-23 Nemera La Verpillière Removal member for removing a needle protective cap
WO2024038285A1 (fr) 2022-08-19 2024-02-22 Tip-Top.Com Ltd Rétroaction sensorielle pour ensemble aiguille de sécurité

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