US20040204678A1 - Single-use syringe - Google Patents
Single-use syringe Download PDFInfo
- Publication number
- US20040204678A1 US20040204678A1 US10/839,874 US83987404A US2004204678A1 US 20040204678 A1 US20040204678 A1 US 20040204678A1 US 83987404 A US83987404 A US 83987404A US 2004204678 A1 US2004204678 A1 US 2004204678A1
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- US
- United States
- Prior art keywords
- barrel
- shield
- locking member
- needle
- reciprocation
- 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.)
- Abandoned
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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
- A61M5/46—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 controlling depth of insertion
-
- 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
-
- 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
- A61M2005/3104—Caps for syringes without needle
-
- 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
-
- 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/04—Access sites having pierceable self-sealing members
- A61M2039/042—Shrouds encircling the access needle preventing accidental needle-stick
-
- 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
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/285—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened
- A61M5/288—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle with sealing means to be broken or opened by piercing without internal pressure increase
-
- 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
- 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
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S128/00—Surgery
- Y10S128/917—Body fluid, devices for protection therefrom, e.g. aids, hepatitus
- Y10S128/919—Syringe, means to protect user
Landscapes
- 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
A single use syringe (10) includes a needle (18), barrel (16), plunger assembly (20) and shield (12). The barrel (16) bears a locking member (26) which encircles the front end of the barrel (16) and is carried forward by the barrel (16) to a position where it engages the shield (12) and is retained by the shield (12) such that the locking member (26) is separated from the barrel (16) as the barrel (16) is withdrawn rearwardly after use. The locking member (26) is resilient and, after it is removed from the barrel (16), assumes a configuration which prevents subsequent forward movement of the barrel (16) within the shield (12). The barrel includes a frangible seal (30) which is broken by rearward movement of needle mount (32). The shield (12) includes a shield extender (14) for controlling the depth of penetration of the needle. The syringe can also be used to inject medicament into a IV bag via a male port as shown in FIG. 7.
Description
- This application is a continuation of U.S. patent application Ser. No.: 10/206,868, filed Jul. 26, 2002, which is a continuation under 35 U.S.C. 1.111 (a) of International Application No. PCT/AU00/01027 filed Aug. 30, 2000 and published in English as WO 01/54758 A1 on Aug. 2, 2001, which claimed priority from Australian Applications PQ 5249 filed Jan. 27, 2000, and PQ 8484 filed Jul. 3, 2000, which applications and publication are incorporated herein by reference.
- The present invention relates to single-use syringes.
- In recent times there has been a proliferation of single-use syringe designs which incorporate shields that can be moved to a forward position to shield the needle after use. In most instances, the shield is locked in the forward position after use to prevent multiple uses of the syringe and/or to prevent inadvertent needle-stick injury.
- Examples of syringe designs incorporating shields can be found in U.S. Pat. No. 5,584,818 to Morrison, U.S. Pat. No. 5,492,536 to Mascia, U.S. Pat. No. 5,527,294 to Weatherford, U.S. Pat. No. 5,591,138 to Vaillancourt, U.S. Pat. No. 6,099,504 to Gross, U.S. Pat. No. 4,820,275 to Haber, U.S. Pat. No. 5,269,761 to Stehrenberger, U.S. Pat. No. 5,562,626 to Sanpietro, U.S. Pat. No. 4,863,434 to Bayless, U.S. Pat. No. 4,985,021 to Straw, U.S. Pat. No. 5,057,079 to Tiemann, U.S. Pat. No. 5,057,086 to Dillard, U.S. Pat. No. 5,092,851 to Ragner, U.S. Pat. No. 5,201,720 to Borgia, U.S. Pat. No. 5,215,534 to De Harde, U.S. Pat. No. 5,215,535 to Gettig, U.S. Pat. No. 5,222,945 to Basnight, U.S. Pat. No. 5,290,256 to Weatherford, U.S. Pat. No. 5,312,372 to De Harde, and U.S. Pat. No. 5,360,408 to Vaillancourt.
- Most of these shielded-syringe designs are provided to the user with the shield in the retracted position and thus some triggering or manual manipulation of the shield is required to release the shield to the forward position after use. In many designs, the movement of the shield to the forward position after use is assisted by a spring.
- Only a few of these known designs are provided to the user with the shield initially in the forward position. In these cases, it is necessary for the user to manipulate some form of release mechanism to enable the shield to be moved to the rearward position to expose the needle for use, and after use it is again necessary to manipulate some form of release mechanism to release the shield to the forward position. Again, many of these designs incorporate a spring which biases the shield to the forward position.
- According to one aspect the invention resides in a single-use syringe which is provided to the user with the shield in a forward position, yet requires no manual manipulation of release mechanisms or the like to release the shield to the rearward position for use, nor further manual manipulation to release and lock the shield in the forward position after use.
- The above ergonomic advantages are achieved by a single-use syringe as defined in the attached claims.
- The invention will now be described with reference to an example for illustrative purposes and wherein:—
- FIGS.1 to 6 are a series of sequential longitudinal sectioned views of a single-use syringe demonstrating operation of the single-use syringe; and
- FIG. 7 shows the single-use syringe engaging the male port of an IV fluid bag.
- Referring firstly to FIG. 1, there is illustrated a pre-filled single-
use syringe 10 including ashield 12 having ashield extender 14, abarrel 16 mounted for reciprocation within theshield 12 and having aneedle 18 at its forward end, and aplunger assembly 20 mounted for reciprocation within thebarrel 16. - The
shield 12 is generally cylindrical in shape and includes a generallycylindrical shield extender 14 at its forward end. Theshield extender 14 can be selectively extended to control the depth of penetration of the needle during use as will be described in more detail later. Conventionalfinger receiving portions 22 are defined towards the rear end of theshield 12, thefinger receiving portions 22 adapted to receive a user's fingers in the conventional manner during use. The forward end of the shield includes acircular slot 24 which engages a retains alocking member 26 during use as will be described later. The rearward end of the shield includes arear collar flange 28 which limits the barrel's 16 rearward travel within theshield 12. - The
barrel 16 is pre-filled with medicament and is sealed at its rearward end by theplunger assembly 20 and at the forward end by afrangible seal 30 which can be broken by theneedle mount 32 prior to use as will be discussed later. Theneedle 18 extends forwardly from theneedle mount 32 which is itself located immediately forward of thefrangible seal 30. Thebarrel 16 bears a generally cylindrical bifurcatedlocking member 26 about its forward end which is adapted to engage and be retained by thecircular slot 24 in theshield 12 as will be described in greater detail later. - The
plunger assembly 20 is conventional in construction and includes apiston 34 at its forward end which sealingly engages the internal bore of thebarrel 16. - The
plunger assembly 20 also defines a conventionalthumb engaging portion 36 at its rearward end. - Referring firstly to FIG. 1 there is illustrated a pre-filled single-use syringe in the form in which it would be supplied to a user. Normally, the pre-filled single-
use syringe 10 would be individually packaged and supplied in a sterile plastic package which is not illustrated. Both the packaging and syringe itself would identify the medicament and volume of medicament present in the barrel of the syringe. - As mentioned above, the medicament is sealed within the
barrel 16 by thepiston 34 of theplunger assembly 20 at the rearward end of thebarrel 16 and by afrangible seal 30 at the forward end of thebarrel 16. - The first step in the use of the syringe is the breaking of the
frangible seal 30 and this is best understood with comparative reference to FIGS. 1 and 2. -
Shield extender 14 is mounted via a coarse screw thread on the forward end ofshield 12 such that rotation ofshield extender 14 relative toshield 12 causes the shield extender to reciprocate in the forward or aft direction relative toshield 12. - As can be seen with reference to FIG. 1, the syringe is provided with the
shield extender 14 in a slightly forward position, i.e. theshield extender 14 extends slightly forward beyond the forward-most extent of theshield 12. - A
cap 38 is provided, and thecap 38 has an outer skirt which is frictionally seated on theshield extender 14 as shown. Theshield extender 14 also has a small outwardly extending shoulder which is engaged by the outer skirt and prevents rearward movement of thecap 38 relative to theshield extender 14. Thecap 38 also encloses theneedle 18 with a rearwardly extending inner skirt which seats on the tapered forward end of theneedle mount 32 as shown. - With reference now to FIG. 2, the
cap 38 andshield extender 14 have been rotated relative to shield 12 such that theshield extender 14 and cap have moved in unison rearwardly relative to shield 12 until the rear end of theshield extender 14 has abutted a small outwardly extending shoulder formed on theshield 12 which prevents further rearward movement of theshield extender 14 relative to theshield 12. Simultaneously, theneedle mount 12 has been driven rearwardly by the inner skirt of thecap 38 such thefrangible seal 30 has been broken and theneedle 18 is thus now in fluid communication with the interior of thebarrel 16. Thefrangible seal 30 is designed to have a portion of its circumference form a “live” or integral hinge about which the remainder of thefrangible seal 30 pivots. A frangible seal and live hinge per se is known from PCT/AU99/00422. - It will be noted that the
needle mount 32 is non-conventional in construction in that it is cylindrical and fully contained within the seal-containing bore of the spigot-shaped nose of thebarrel 16. In contrast, conventional needle mounts include a rearwardly projecting skirt which surrounds the exterior of the spigot-shaped nose of thebarrel 16. It is for this reason that the syringe disclosed in PCT/AU99/00422 utilised a cylindrical tube 21 intermediate the conventional needle mount 7 and frangible seal 9 for the purpose of breaking the frangible seal 9. - With reference to FIG. 3,
cap 38 has been removed and the needle is now ready for use with the needle being shielded, but in fluid communication with the interior of thebarrel 16 which accommodates the medicament. - Referring to FIG. 3A, the
shield extender 14 has been rotated in the reverse direction relative to theshield 12 such that theshield extender 14 has moved forwardly relative to shield 12 from its fully retracted position and it now extends forwardly beyond the forward-most extent ofshield 12. Selective rotation ofshield extender 14 relative to shield 12 allows the user to control the depth of penetration of theneedle 18 during use. The further theshield extender 14 is extended beyond theshield 12, the shallower the penetration of theneedle 18 in the patient. - With reference now to FIG. 4, the user has begun squeezing together
thumb receiving portion 36 of theplunger assembly 20 and finger-receivingportions 22 of theshield 12 in the conventional manner thereby compressingcompression spring 40 which is provided between a small outwardly extending shoulder formed on the rear end ofbarrel 16 and a small inwardly directed shoulder formed midway along the length ofshield 12. - As shown in FIG. 4, the
plunger assembly 20 has not yet moved forwardly relative tobarrel 16 to express medicament from theneedle 18. Rather,plunger assembly 20 andbarrel 16 have moved forwardly in unison withinshield 12 andshield extender 14.Plunger assembly 20 andbarrel 16 will continue to move forward in unison until the forward end ofbarrel 16 engages the forward end ofshield 12 whereat thecompression spring 40 reaches its maximum compression. - With reference now to FIG. 5, the
barrel 16 has moved to the fully forward position relative to shield 12 such that the forward end ofbarrel 16 engages the forward end ofshield 12 and theneedle 18 is maximally exposed. Thereafter, any further squeezing together of thethumb receiving portion 36 andfinger receiving portions 22 in the conventional manner causes theplunger assembly 20 to move forward relative tobarrel 16 thereby expressing the medicament from the interior of thebarrel 16. - With reference to FIG. 5, it should be noted that the forward end of locking member26 (which has been carried forward on the forward end of barrel 16) has engaged the
circular slot 24 defined in the forward end ofshield 12. The lockingmember 26 is thereafter retained in this position by virtue of its engagement with theslot 24. - With reference to FIG. 6, the squeezing force applied by the user has been discontinued and the
barrel 16 andplunger assembly 20 have moved rearwardly in unison under the influence ofcompression spring 20. It will be noted that lockingmember 26 is retained in thecircular slot 24 defined in the forward end ofshield 12. Asbarrel 16 moves rearwardly relative to shield 12, lockingmember 26 slides or is pulled off the forward end ofbarrel 16 until it is fully clear ofbarrel 16 as shown in FIG. 6. At this stage, the rear end of lockingmember 26, which is formed of a resilient plastics material having a memory, snaps inwardly to adopt a truncated and bifurcated cone-like shape as shown in FIG. 6. Of course, previously whilst the lockingmember 26 was encirclingbarrel 16, it adopted a bifurcated cylindrical shape. Thus, the resilient memory of the lockingmember 26 causes the locking member to change shape from a generally cylindrical shape to a generally truncated cone-like shape when it is “pulled” off the forward end of thebarrel 16 via its engagement withslot 24. - Once the locking
member 26 has adopted the truncated cone-like shape as shown in FIG. 6, subsequent forward movement of thebarrel 16 relative to theshield 12 is prevented by virtue of physical interference with the lockingmember 26 and hence the lockingmember 26 prevents subsequent unshielding of theneedle 18. - Referring to FIG. 7, the single-use syringe can also be conveniently used in a safe manner with intravenous polybags as shown. In this regard, the forward end of the
shield 12 is sized so as to closely receive the male port of a polybag as shown. Typically, these male ports are sealed by a rubber plug as shown. The needle can penetrate through the rubber plug and the medicament can then be injected into the polybag for IV feed to the patient via an established catheter or the like. After injection of the medicament into the polybag, the needle is withdrawn and the rubber plug is sufficiently resilient to be reseal the male port of the poly bag. - The present invention provides a single-use syringe which is supplied to the user with the shield in the forward or shielding position, yet requires no non-conventional manipulation or activation of release mechanisms or the like to move the shield back to the needle-exposed position for use. Furthermore, no non-conventional manipulation of release mechanisms or the like is required to release the shield to the forward protective position after use. The user simply squeezes their thumb and fingers together in the conventional manner and this single, conventional action exposes the
needle 18, activates the lockingmember 26 via its engagement with theslot 24, and expresses the medicament. Discontinuation of the squeezing force cause the shield to return to its forward or protective position under spring bias whereat it is locked to prevent subsequent use or inadvertent needle-stick injuries. - It will of course be realised that whilst the above has been given by way of an illustrative example of this invention, all such and other modifications and variations hereto, as would be apparent to persons skilled in the art, are deemed to fall within the broad scope and ambit of this invention as is herein set forth.
Claims (5)
1. A single-use syringe, comprising:
a shield;
a barrel adapted to contain a medicament and mounted for axial reciprocation within the shield; and
a locking member initially mounted on the barrel, wherein the locking member engages the shield during expression of medicament from the barrel, and subsequent to said engagement is dismounted from the barrel, the dismounted locking member thereafter preventing reciprocation of the barrel within the shield.
2. A single-use syringe as claimed in claim 1 , wherein the locking member initially encircles a forward end of the barrel, and is dismounted from the forward end of the barrel during rearward reciprocation of the barrel within the shield.
3. A single-use syringe as claimed in claim 1 , wherein the shield includes a slot, and wherein the locking member engages, and is retained by, the slot.
4. A single-use syringe, comprising:
a shield;
a barrel adapted to contain medicament and mounted for axial reciprocation within the shield; and
a locking member initially mounted relative to the barrel for reciprocation therewith, wherein the locking member engages and is retained by the shield during expression of medicament from the barrel, and as a result of said engagement and retention the locking member is translated relative to the barrel during rearward reciprocation of the barrel within the shield, the locking member then preventing subsequent reciprocation of the barrel within the shield.
5. A single-use syringe comprising:
a shield with a forward end and a rearward end;
a barrel with a forward end and a rearward end, the barrel mounted for axial reciprocation within the shield between a rearward position and a forward position;
a needle mounted on the forward end of the barrel such that when the barrel is in the forward position the needle is exposed;
a locking member adapted to prevent exposure of the needle by forward reciprocation of the barrel when the locking member is dismounted from the barrel, the locking member being removably mounted to the forward end of the barrel and adapted to engage the forward end of the shield when the needle is exposed by forward reciprocation of the barrel, the engagement being sufficient to dismount the locking member from the forward end of the barrel during rearward reciprocation of the barrel, the locking member thereafter preventing further exposure of the needle by forward reciprocation of the barrel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/839,874 US20040204678A1 (en) | 2000-01-27 | 2004-05-06 | Single-use syringe |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPQ5249A AUPQ524900A0 (en) | 2000-01-27 | 2000-01-27 | Supersyringe |
AUPQ5249 | 2000-01-27 | ||
AUPQ8484A AUPQ848400A0 (en) | 2000-07-03 | 2000-07-03 | Multi purpose safety syringe |
AUPQ8484 | 2000-07-03 | ||
PCT/AU2000/001027 WO2001054758A1 (en) | 2000-01-27 | 2000-08-30 | A single-use syringe |
WO01/54758A1 | 2001-08-02 | ||
US10/206,868 US6997901B2 (en) | 2000-01-27 | 2002-07-26 | Single-use syringe |
US10/839,874 US20040204678A1 (en) | 2000-01-27 | 2004-05-06 | Single-use syringe |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/206,868 Continuation US6997901B2 (en) | 2000-01-27 | 2002-07-26 | Single-use syringe |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040204678A1 true US20040204678A1 (en) | 2004-10-14 |
Family
ID=25646247
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/206,868 Expired - Fee Related US6997901B2 (en) | 2000-01-27 | 2002-07-26 | Single-use syringe |
US10/839,874 Abandoned US20040204678A1 (en) | 2000-01-27 | 2004-05-06 | Single-use syringe |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/206,868 Expired - Fee Related US6997901B2 (en) | 2000-01-27 | 2002-07-26 | Single-use syringe |
Country Status (7)
Country | Link |
---|---|
US (2) | US6997901B2 (en) |
EP (2) | EP1464353A1 (en) |
JP (1) | JP2003523804A (en) |
AT (1) | ATE281857T1 (en) |
DE (1) | DE60015805T2 (en) |
ES (1) | ES2232484T3 (en) |
WO (1) | WO2001054758A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020193737A1 (en) * | 2000-01-27 | 2002-12-19 | Afra Design Pty. Limited | Single-use syringe |
US10653848B2 (en) * | 2015-06-15 | 2020-05-19 | Gerresheimer Regensburg Gmbh | Safety device for a syringe |
Families Citing this family (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20107507U1 (en) | 2000-11-02 | 2002-03-07 | Dentaco Gmbh | Ampoule for dispensing a substance or a mixture consisting of several substances |
AUPR657501A0 (en) * | 2001-07-26 | 2001-08-16 | Afra Design Pty Limited | Protective syringe |
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US20020193737A1 (en) * | 2000-01-27 | 2002-12-19 | Afra Design Pty. Limited | Single-use syringe |
US6997901B2 (en) | 2000-01-27 | 2006-02-14 | Biomd Limited | Single-use syringe |
US10653848B2 (en) * | 2015-06-15 | 2020-05-19 | Gerresheimer Regensburg Gmbh | Safety device for a syringe |
Also Published As
Publication number | Publication date |
---|---|
ES2232484T3 (en) | 2005-06-01 |
DE60015805T2 (en) | 2005-11-17 |
ATE281857T1 (en) | 2004-11-15 |
WO2001054758A1 (en) | 2001-08-02 |
DE60015805D1 (en) | 2004-12-16 |
US20020193737A1 (en) | 2002-12-19 |
EP1253958B1 (en) | 2004-11-10 |
EP1253958A4 (en) | 2003-06-11 |
JP2003523804A (en) | 2003-08-12 |
EP1464353A1 (en) | 2004-10-06 |
EP1253958A1 (en) | 2002-11-06 |
US6997901B2 (en) | 2006-02-14 |
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