Abstract: An automatically operable safety shield system for use with a syringe that comprises an inner holder in which said syringe may be inserted and an outer shield mounted outwards from the inner holder axially movable between retracted and extended positions in which a spring positioned between said inner holder and said outer shield urging the outer shield to its extended position and the inner holder having at least one first opening, distally thereto, at least one first indentation, and the outer shield having at least one first stop member engageable with the opening when the outer shield is in the retracted position engageable with the first indentation when the outer shield is in the extended position and the outer shield may be released from its retracted position by action of a trigger positioned within the inner holder or by protrusion on the syringe plunger.

Abstract: The invention relates to a protective device for an injection needle or infusion needle, comprising a needle holder at the proximal end of the needle, on whose shaft a protective element for the needle tip can be moved, said protective element being prevented, by an engagement device between the needle and the protective element, from being moved past the needle tip, and a grip part being provided between the protective element and the needle holder for the purpose of moving or securing the protective element.

Abstract: Protective devices for injection needles or infusion needles that include a needle holder at a proximal end of the needle, on whose shaft a protective element for the needle tip can be positioned and moved, are herein disclosed. The protective element is configured to block the needle tip following an injection to prevent accidental contact therewith. The protective element may be positioned on the shaft in a ready to use position inside a grip part or middle retaining portion, which is also used to activate the protective element over the needle following the injection.

Abstract: The present invention includes an automatic injection device that reliably provides automatic needle retraction even when manufactured with part and assembly tolerances typical of low-cost and high-volume manufacturing processes. The injector of the present invention includes a body, a syringe cartridge, a drive mechanism, and a bias mechanism. The drive mechanism includes an energy source, a drive member, and a compound plunger with a releasable coupling. Significantly, the compound plunger included in the drive mechanism is designed to ensure needle retraction occurs after the automatic injection device has delivered the desired dose of medicament. Moreover, the design of the compound plunger included in the injector of the present invention can compensate for part and assembly tolerances typical of low-cost, high volume manufacturing processes, enabling the fabrication of a low cost automatic injection device providing reliable automatic needle retraction.

Abstract: A one-shot throwaway injection device has a barrel that houses a syringe initially in a retracted state held back by a trigger against a drive spring. Actuation of the trigger causes the syringe to be thrust forwards by the spring acting on its plunger until the needle is fully projecting, and then the dose is ejected by the final expansion of the spring. Release of the trigger allows a return spring to urge the syringe back and retract the needle. The barrel is a unitary plastics moulding of two longitudinally split halves hinged together with the trigger integrally formed with one of these halves. The other components and the syringe are positioned in one half which is then closed up and fastened to the other half to complete the barrel.

Abstract: The present invention provides a syringe cartridge that is sufficiently robust to be used in autoinjectors that generate injection forces sufficient to deliver viscous medicaments. The syringe cartridge of the present invention includes a syringe, a bias mechanism, and a casing. The casing of the syringe cartridge of the present invention includes a collapsible portion and a fixed portion. Advantageously, the collapsible portion of the casing collapses within the fixed portion of the casing as the syringe is driven through its stroke within the syringe cartridge. As the collapsible portion collapses within the fixed portion, the length of the syringe cartridge is effectively reduced, which, in turn, allows the use of a shorter plunger and thereby facilitates the construction of a more compact autoinjector.

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.

Abstract: A breakable syringe with a safety sleeve has a syringe body (10), a needle (13) with a needle base (12), a safety sleeve (20), and a breaking device. The needle (13) is attached to the syringe body (10) by inserting the needle base (12) into the syringe body (10). The safety sleeve (20) slidably sleeves the syringe body (10) and clamps the breaking device with the syringe body (10). By sliding the safety sleeve (20), the safety sleeve (20) can be selectively positioned at different locations to expose or enclose the needle (13) by the multiple engaging devices and even to urge the breaking device to break the syringe body (10). Therefore, the needle (13) of the syringe is conveniently enclosed and the syringe can be immediately broken after use.

Abstract: A safety device for a syringe constituted by a body, a needle carrier mounted at one end of the body, a piston that is axially movable in the body, and a piston plunger projecting from the body at its end opposite from the needle carrier and suitable for pushing the piston inside the body towards the needle carrier, the device comprising a sheath in which the syringe body can slide axially between an injection position in which the needle carrier is flush with one end of the sheath and a safe position in which the needle carrier is retracted into the sheath, a helical spring which is axially compressed when the syringe body is in the injection position, said spring then exerting on said body a force tending to cause it to slide into the safe position, retention means for retaining the syringe body in the injection position, and a release mechanism for releasing the retention means acting on said retention means when the piston plunger of the syringe has pushed the piston inside the body into the vicinity of t

Abstract: The invention relates to a pre-filled injection device for injecting a liquid or semisolid composition into a subject, said injection device comprising: a housing (1) containing at its distal end the liquid or semisolid composition (2), a plunger (3) arranged to slide within the housing (1) to which is affixed a plunger stick (7) extending longitudinally from the plunger to the outside of the housing (1), a hollow needle (4) affixed to the distal end of the housing (1), said needle (4) connecting the interior part of the housing (1) with the outside where it extends longitudinally, and an airtight needle shield (5) which protects said needle (4), characterized in that said device further comprises a cap (6) designed to fit around the housing's proximal end and to fully cover said plunger stick (7), said cap (6) both preventing its accidental pushing or breakage before use and being adapted to receive the injection device once the injection into the subject has been carried out.

Abstract: An inserter having a housing, a syringe carriage slidably mounted within the housing and a syringe socket defined within the syringe carriage. The syringe carriage is able to assume a cocked position and an extended position with the latter being the position for injection. A spring biases the syringe carriage to the extended position and a latch selectively retains the syringe carriage in the cocked position.

Abstract: The insulin syringe with magnified sheath is a syringe with a transparent outer sleeve constructed of a material capable of magnifying printed information. The outer sleeve is slidably attached to the syringe barrel and can lock into a retracted position where it surrounds the syringe barrel and magnifies the dosage indicia thereon while exposing the syringe needle for use or can lock into an extended position where it surrounds the needle to help prevent inadvertent needle sticks.

Abstract: A safety syringe is provided which includes a shield and a barrel mounted for reciprocating movement within the shield. The safety syringe includes a hub sized and shaped so as to be attached to the barrel and a ring rotatably mounted to the hub. The ring includes a tab that cooperates with the grooves in the interior wall of the shield for locking the barrel within the shield so as to allow for a single use of the safety syringe.

Abstract: A hypodermic syringe provides a simple mechanism for manually retracting its needle into the syringe after injection has been completed. The syringe preferably has an elastomeric barrel to exert a radial bias to seal on a retractable needle carrier and the plunger. Attachment components on the plunger and needle carrier engage such that withdrawal of the plunger releases the needle carrier for withdrawal into the syringe barrel.

Abstract: The present invention relates to a percutaneous bone anchored transferring device and a connecting device for obtaining a transfer of an electrical signal and/or energy and/or distribution of a drug and/or airing of a body cavity and a system and a method for using the same.

Abstract: A needle device, possibly in the form of a butterfly or IV needle, has a housing with an orthogonal passage to the bore of the housing. A key that has a non-uniform opening with spaces defined by the opposing inner walls of its two extending legs is inserted into the passage. By positioning the key at different placement locations relative to the passage so that the different dimensioned spaces of the opening become aligned with the bore of the housing, the needle assembly can be selectively retained at at least a first position whereby the needle is extended out of the housing, and a second position whereby the needle is permanently retracted within the housing after use.

Abstract: A device for injecting fluid from a pre-filled cartridge is provided. The device includes a needle for piercing a patient. After an injection, the needle can be retracted to prevent inadvertent contact with the contaminated needle. A needle retainer releasably retains the needle in the retracted position. The needle can subsequently be re-extended to administer a subsequent injection. After the cartridge is emptied, the cartridge can be removed, if desired, and replaced with another cartridge for additional injections. Alternatively, the needle can be substantially permanently retracted into the device and safely disposed of in a sharps container.

Abstract: A hypodermic implant device, comprising a barrel; an upper piston segment engaged with an inner wall of the barrel; an axially aligned needle extendably distally out of the barrel for insertion into an object when the upper piston segment is moved distally within the body; a lower piston segment push rod in alignment with the needle, so that upon distal movement of the lower piston segment, the push rod moves distally through the needle expelling a releasable implant housed in the needle; and a means for retraction of the needle into a needle receptacle in the barrel.

Abstract: The present invention discloses an auto-disable safety syringe, comprising a needle, a needle seat, a plunger, and a barrel, in which a small top cover of a needle seat chamber formed in the needle seat is provided with a splined hole which is formed with plural protruding teeth and grooves, the protruding teeth are each provided with a limit boss, and the needle seat is formed with splined teeth, a seal is embedded in a neck between the splined teeth and the ring block. A locking groove formed in an inner cavity of the ring block and a locking head formed on a connecting head form a locking mechanism, the inner cavity is formed with spiral grooves and the connecting head is provided with protrusions for engaging with the spiral grooves respectively. The splined teeth and the limit boss connect securely the needle seat to the barrel. When the locking head and the locking groove are interlocked, the plunger is retracted, the needle seat and the needle will be retracted inside the barrel together.

Abstract: A safety syringe is provided which includes a shield and a barrel mounted for reciprocating movement within the shield. The safety syringe includes a hub sized and shaped so as to be attached to the barrel and a ring rotatably mounted to the hub. The ring includes a tab that cooperates with the grooves in the interior wall of the shield for locking the barrel within the shield so as to allow for a single use of the safety syringe.

Abstract: A protecting cap structure for the needle of a syringe, wherein, the structure is provided with a protecting sleeve having a receiving space for receiving a needle. The protecting sleeve is comprised of a foldable cover and a cylindrical extendible member connected with each other; the cylindrical extendible member is a hollow cylinder, the shank of the cylindrical extendible member has a compression portion; a pair of foldable portions are provided in neighboring to the compression portion; the foldable cover is in the shape of a semi-cylinder, one end of the foldable cover is connected with the cylindrical extendible member, in order that when the cover is folded to close, it cooperates with the cylindrical extendible member to envelop and fast envelop the needle to prevent the needle from accident stabbing.

Abstract: A needle assembly for use with an injection device including a pair of housing members slidably coupled with one another. A needle is structurally attached to one of the housing members such that it is positioned within the two housing members. A first membrane is disposed on an opening of one housing member and a second membrane is disposed on an opening of the other housing member such that the needle is concealed from the view and access of a user thereof. The needle assembly may be contracted by sliding one housing member relative to the other causing the needle to penetrate one of the membranes and administer an injection into or below the skin of the user. Additionally, one or more locking mechanisms may be incorporated to prevent inadvertent needle sticks.

Abstract: The present invention is a safety shield assembly having a shield and a collar for connecting the shield to a fluid handling device whereby the shield may be pivoted with respect to the collar. Preferably, the safety shield assembly may be used with a needle assembly, an intravenous infusion set a syringe, a catheter or other fluid handling devices or assemblies that contain piercing elements. The shield includes a clip with a plurality of cannula finger locks for preventing re-exposure of the used needle.

Abstract: A safety hypodermic syringe in which the needle hub of the needle assembly has two sliding grooves respectively coupled to respective small stub rods in the socket at the front side of the barrel so that the needle assembly is moved backwards and received inside the barrel upon a return stroke of the plunger after the service of the safety hypodermic syringe and after a rotation of the plunger through an angle relative to the barrel.

Abstract: A needle protective assembly in which a slidable sheath is mounted over a barrel which, in turn, encircles a needle. The sheath is adapted to slide along the barrel, and cover the needle after use, protecting against accidental needlesticks. The inner barrel is integrally formed with a hub in which the needle is mounted, and which may be used to attach the inventive protective assembly to a blood collection vial holder, or a hypodermic syringe, depending upon the application. In some embodiments, the protective assembly may also be formed integrally with either the blood collection vial holder, or the hypodermic syringe.

Abstract: A safety fluid injecting/sampling apparatus connectable with a needle cannula, the apparatus includes an inner barrel having a receiving hole, an elastically bendable retaining strip with an inwardly protruded engagement tooth disposed at one end, and a retaining hole disposed at the other end, an outer barrel having an axially extended receiving hole adapted to receive the inner barrel, a finger flange extended around the periphery, and an elastically deformable retaining element having an engagement block engageable into the retaining hole of the inner barrel; a needle holder axially slidably inserted into the receiving hole of the inner barrel, the needle holder having a locating groove extended around the periphery and adapted to receive the engagement tooth of the inner barrel for positioning, and an insertion member inserted into the receiving hole of the inner barrel for operation by hand to move the outer barrel backwards relative to the inner barrel.

Abstract: A retractable type safety syringe comprises a needle set, a barrel and a plunger, wherein the needle set has a first engaging portion on the bottom thereof. The front end of the plunger has a contractible elastic piston. The piston has a second engaging portion on the top thereof to be engaged with the first engaging portion. When the piston is pushed into the injecting space of the barrel to contact the inner wall on the top end of the injecting space, and when a force is exerted to make the first engaging portion connect with the second engaging portion, the piston can restore from the deformed state to overcome the fixed connecting force of the needle set. The safety syringe has a variety of feasible shapes and structures of pistons that can suit various retractable type safety syringes.

Abstract: A fluid injecting/sampling apparatus is constructed to include a barrel, a needle holder holding a needle cannula, a plunger mounted with a rubber stopper and axially movably mounted in the barrel, and a rotary chuck coupled to the front end of the barrel and prohibited from a reversed rotation after having been turned relative to the barrel to unlock the needle holder for enabling the needle holder to be pulled backwards into the inside of the barrel by the plunger.

Abstract: A single use syringe (10) has an outer barrel (11) and an inner barrel (12) slidable within the outer barrel. The two barrels are initially latched together to prevent relative movement therebetween whereby the syringe is in a useable condition. A needle (16) is in fluid communication with the inner barrel and projects initially from a first end of the outer barrel. A plunger (21) in the inner barrel is connected to a plunger actuating rod (22) which extends out the other end of the outer barrel. On first depression of the plunger actuating rod a limit catch (23) prevents full depression thereof but allows sufficient depression to draw fluid into the inner barrel. On the second depression the fluid is ejected and the plunger actuating rod and plunger are allowed full travel whereby latching between the two barrels is disengaged. It is not possible to re-latch the barrels together in the useable condition and therefore further use of the syringe is not possible.

Abstract: A safety syringe device includes a tube mounted to the first end of the barrel and the needle extends through the tube. A sleeve is slidably mounted to the first end of the barrel and encloses the tube therein. A metal cover is pivotably connected to an edge of the first end of the sleeve and biased to contact the needle assembly when the sleeve is not yet pulled to its operation position. The metal cover is pivoted to seal the first end of the sleeve when the sleeve is pulled to its operation after the syringe process is completed. The needle is bent by the metal cover when pushing the sleeve back toward the barrel.

Abstract: A safety syringe has a barrel, a needle hub movably received in the barrel and having a hollow cone formed inside the needle hub and an annular cutout, a stopper having an engaging portion formed to correspond to the annular cutout and an extension integrally formed with the engaging portion and being slanted relative to the engaging portion, and a plunger having a first hook to correspond to the hollow cone and a second hook to correspond to the extension of the stopper. Engagement between the second hook and the extension of the stopper allows the stopper to be taken away from engagement with the needle hub and engagement between the first hook and the hollow cone allows the needle hub to be pulled inside the barrel and thus the syringe is able to be disposed of safely.

Abstract: The invention relates to a needle guard assembly for the needle part of a syringe body in the form of a needle guard that covers the needle and which is displaceable on the syringe body in the longitudinal direction, and with a grip plate being integrally formed on that end of the syringe body remote from the needle. The needle guard assembly includes a syringe body ending with a needle. A piston rod in the syringe body has a receiving part and a push-in part that telescopes into the receiving part. A syringe-body grip plate is integrally formed on the syringe body. The syringe-body grip plate opposes the needle. A needle guard is arranged longitudinally along the syringe body and covers the needle when the needle guard is displaced longitudinally.

Abstract: The Needle Capper is a single-cased 4 unit which houses used syringes 9/hypodermic needles 10. The Needle Capper is comprised of two plastic half-tubes 4 fitting around the syringe 9/hypodermic needle 10, hinged together at the bottom ends. A rubber cork 2 is located at the top of the hinge. The tip of the used needle 10 is inserted or depressed into the cork 2, causing the hinge of the two halves to raise and join together, thereby closing the case 4. When the case is closed, the connector button clasps male 6 and female 7, located on the handles join. The user then snaps the handles together, thereby locking the case. The needle is sealed inside the case and ready for proper disposal.

Abstract: A single-use hypodermic syringe having a syringe barrel with distal and proximal ends. The syringe barrel includes a flange at the proximal end thereof and a luer locking collar at the distal end thereof. A needle assembly is removably coupled to the distal end of the syringe barrel. The needle assembly includes a hub and a needle extending from a distal end of the hub. A plunger is telescopically positionable within the barrel. A tubular shield is disposed around the syringe barrel such that the syringe barrel can be moved relative thereto. The shield includes locking prongs extending proximally therefrom, and a spring for moving the syringe barrel from an unused position, where the shield allows exposure of the needle assembly, into a used position where the shield covers the needle assembly.

Abstract: An injection device has a barrel (1) for housing and guiding a syringe (13) as it is urged forward to project its needle (14), while the dose is ejected, and as a return spring (22) retracts it. A firing mechanism (6) is connectable to the rear end of the barrel and is re-usable, whereas the barrel (1) with its spent syringe (13) is disposable. The connection (4) has limited freedom of axial movement so that, once made, forward pressure on the firing mechanism (6) moves the syringe (13) up to a ready position. A number of barrels (1) with syringes (13) can be housed in a common box (31) with a single firing mechanism (6), the forward end of each barrel (1) being screwed to a locator (32) on the base of the box.

Abstract: A safety syringe has a barrel, a needle hub movably received in the barrel and having a hollow cone formed inside the needle hub and an annular cutout, a stopper having an engaging portion formed to correspond to the annular cutout and an extension integrally formed with the engaging portion and being slanted relative to the engaging portion, and a plunger having a first hook to correspond to the hollow cone and a second hook to correspond to the extension of the stopper. Engagement between the second hook and the extension of the stopper allows the stopper to be taken away from engagement with the needle hub and engagement between the first hook and the hollow cone allows the needle hub to be pulled inside the barrel and thus the syringe is able to be disposed of safely.

Abstract: The present invention provides a syringe cartridge that is sufficiently robust to be used in autoinjectors that generate injection forces sufficient to deliver viscous medicaments. The syringe cartridge of the present invention includes a syringe, a bias mechanism, and a casing. The casing of the syringe cartridge of the present invention includes a collapsible portion and a fixed portion. Advantageously, the collapsible portion of the casing collapses within the fixed portion of the casing as the syringe is driven through its stroke within the syringe cartridge. As the collapsible portion collapses within the fixed portion, the length of the syringe cartridge is effectively reduced, which, in turn, allows the use of a shorter plunger and thereby facilitates the construction of a more compact autoinjector.

Abstract: A device is provided for injecting fluid from a pre-filled cartridge. The device includes a needle and a hollow barrel that holds a pre-filled cartridge. A needle retainer releasably retains the needle in an extended position so the needle can be inserted into a patient. A plunger in the rear of the barrel cooperates with the cartridge to expel fluid from the cartridge during an injection. After an injection, the needle is automatically retracted into the barrel when pressure is released from the plunger. A locking mechanism locks the contaminated needle and cartridge in the barrel after needle retraction. After use, the device may be safely disposed of in a sharps container.

Abstract: A plasma-collecting devise comprises a blood-filtering element having a blood-drawing needle and a communicating needle, a vacuum blood-drawing tube, and a contracting and expanding element connecting the blood-filtering unit and the vacuum blood-drawing tube. The device enables blood drawing from blood vessel and blood filtering continuously to obtain plasma.

Abstract: An injection device is disposable, and is designed to have a reusable firing mechanism fitted to its rear end. A syringe carrier within the barrel of the device is initially locked in a position with the needle of the syringe retracted by a locking element inserted laterally through the barrel. This element also holds an axially movable connector to which the firing mechanism connects. The device is made operable by removal of the locking element, and after use a return spring ensures that neither the syringe carrier nor the connector assume positions where the locking element can be reinserted. An adaptor may be provided to facilitate preparing a syringe with a two-component dose, and for disposal after use the adaptor with an empty vial still attached can be fitted to the rear end of the injection device in place of the firing mechanism.

Abstract: A safety needle assembly includes a hub having a proximal end for connection to a syringe and a distal end, a cannula provided with a lumen and having a proximal end connected to the distal end of the hub and a beveled distal end, and a collar formed separately from the hub and mounted on the hub in a rotationally fixed manner, with the collar including a sheath mounting portion. A removable protector is positioned over the cannula and covers the beveled distal end of the cannula. A sheath having an opening is pivotally connected to the sheath mounting portion of the collar and is positioned outside the protector when the protector is positioned over the cannula. The sheath is pivotally connected to the sheath mounting portion of the collar to be pivoted, after removal of the protector to expose the cannula, towards the cannula so that the cannula passes through the opening in the sheath and is covered by the sheath.

Abstract: A needle-bearing device for injecting medicinal fluid from a pre-filled vial is provided. After use, the needle is retracted into the body of the device to prevent inadvertent contact with the sharpened end of the needle. In one embodiment, the invention provides a manually actuable button that effectuates retraction of the needle after use. In another embodiment, retraction is effectuated automatically after the injection is complete.

Abstract: An automatically retractable safety syringe includes a needle assembly consisting of a connula, a needle hub and a rubber O-ring, a needle cap, a retracting spring, a breakable and retractable plunger, a plunger gasket and a medicine barrel; in accordance with the structure of the said automatically retractable safety syringe of the present invention, since the breakable plunger is assembled inside the medicine barrel, after being pushed all the way to the end, it is forced to break automatically into two parts for reducing it's length so as to provide enough space for the retracting spring to drive the needle assembly moving along the sliding passages for accomplishing an automatically retracting action.

Abstract: A passive needle guard includes a body having proximal and distal ends and a cavity therein for receiving a medicine cartridge, and a shield slidable on the body between retracted and extended positions for exposing and covering, respectively, a needle extending from the body, the shield being biased towards the extended position. Deflectable latch members extend from the shield that include catches for engaging catches on the body for holding the shield in the retracted position. A syringe is inserted into the needle guard, and a needle of the syringe inserted into a patient. A plunger of the syringe is depressed to inject medication and to deflect the latch members to disengage the catches and release the shield, whereupon the shield automatically advances to the extended position. In the extended position, cooperating detents on the shield and body engage one another, thereby preventing subsequent retraction of the shield.

Abstract: Described is a catheter system for implanting embryos into a woman's uterus. The catheter system utilizes a protective catheter sleeve for introducing a catheter into the uterus without mucus contamination of an inner catheter. Once the sleeve containing the inner catheter is introduced into the uterus, the protected inner catheter, carrying the embryos, is pushed through a swivelable distal end cap on the sleeve to a desired implanting location. The distal end of the inner catheter has a protective cap and a side opening for embryo release. Also, stiffness and indicia features of the outer sleeve and inner catheter assist in the physician's handling of the catheter system and in ensuring a desired uterus location for implanting.

Abstract: An assembly for penetrating the uterus of an animal during a non-surgical procedure comprising a probe having an elongated body with a longitudinal axis and a probing member extending at least laterally outwardly at the forward end of the probe body, a channel extending between an inlet opening at a distance from the probing member and an outlet opening near the probing member, wherein the channel comprises at least one bend or curve, such that the axis of the channel near the outlet opening encloses an angle different from 180° with the longitudinal axis of the probe body, the probe being adapted to be inserted, forward end first, inside the cervix of the animal, and manipulatable to gently maneuver the probing member in a forward direction through the cervix to a position in which the probing member and the outlet opening are within or adjacent the body of the uterus.

Abstract: Injector devices and methods for their operation for containers having an opening with or for an injection needle. The container is optionally of syringe type with a barrel of substantially constant axial cross-section. In one embodiment, the devices include a penetration arrangement operable to move the needle from a rear position to a forward position, an injection arrangement operable at least to expel container content through the needle, and a transmission and a switch system allowing manual energy applied to the device to manually operate the penetration arrangement and then manually operate the injection arrangement.

Abstract: A one-shot throwaway injection device has a barrel that houses a syringe initially in a retracted state held back by a trigger against a drive spring. Actuation of the trigger causes the syringe to be thrust forwards by the spring acting on its plunger until the needle is fully projecting, and then the dose is ejected by the final expansion of the spring. Release of the trigger allows a return spring to urge the syringe back and retract the needle. The barrel is a unitary plastics moulding of two longitudinally split halves hinged together with the trigger integrally formed with one of these halves. The other components and the syringe are positioned in one half which is then closed up and fastened to the other half to complete the barrel.

Abstract: A disposable safety syringe has a barrel, a connector assembled at a front end of the barrel, a needle assembly assembled onto the connector, and a plunger extendable into the barrel. The plunger has a connecting head such that the connecting head is able to be securely connected with the connector after an injection of the syringe. Therefore, the needle assembly is able to be pulled by the plunger to fully retract into the barrel and the syringe is then safe to discard without the risk of scratching someone.

Abstract: The invention relates to a needle covering device of an injection device, the injection device including a casing comprising a reservoir, in particular an ampoule, for a product fluid to be administered, and an injection needle for injecting the product fluid from the reservoir, wherein the device surrounds the injection needle in an extended position and exposes the injection needle in a retracted position. The device comprises a passage for the injection needle, a front section via which the device is placed on an injection point, and another section which is nearer to the casing than the front section is, at least in the extended position. The sections can be moved axially relative to the casing and relative to each other, such that the device is variable in its length, the front section being guided in a straight line on the casing.