Abstract: A retractable safety syringe includes a retractable needle hub holding a needle and having a first guiding means; and a hollow barrel having a second guiding means set correspondingly to the first guiding means; and a collapsible plunger comprising of a first plunger element having a protrusion releasably coupled with a second plunger element having a longitudinal slot with a pinched zone to curb the movement of said protrusion; and a spring disposed between the needle hub and hollow barrel and acts between the needle hub and the hollow barrel. The uncoupling of the collapsible plunger triggers the retraction mechanism to enable the needle hub to retract into the barrel by the decompression force of a spring. The reliability of retraction is further improved by a longitudinal slot and a protrusion to facilitate the retreating of the collapsible plunger in an orderly way.

Abstract: An injector or applicator is used for dispensing a liquid or pasty drug. It comprises an injector body (1), a piston body (2) and a closing cap (3). The closing cap (3) has a cap portion and a connecting portion. The cap portion is used for closing the opening of the injector or applicator. The connecting portion is used for connecting the closing cap (3) with the injector or applicator. The cap portion and the connecting portion are releasably connected by a tear edge. To create an improved tamper-proof feature, the housing portion (1) has an undercut, and the piston body (2) has a protrusion (FIG. 6).

Abstract: The present invention relates to a safety syringe. The safety syringe comprises a barrel having a plurality of elastic support units in the inner side, a plunger having a rubber ring and a first coupling portion at the front-end, and an injection head unit comprising a first needle seat, a second needle seat, and a needle, wherein the second needle seat comprises a second coupling portion. When the injection head unit is mounted on the front-end opening, the second needle seat is propped by the plurality of elastic support units preventing the needle seat from being crushed during injection. After injecting, the first coupling portion is pushed to couple with the second coupling portion, and then the needle can be pulled into the barrel for safety.

Abstract: A safety needle assembly is provided herein which includes a displaceable locking tongue which has a first position in which the locking tongue covers an aperture formed in a shield so as to prevent the passage therethrough of a needle. A biasing element is also provided for urging the locking tongue to the first position. The locking tongue is releasably retained in a retained position prior to use of the safety needle assembly, the aperture being sufficiently uncovered with the locking tongue being in the retained position so as to permit passage of the needle through the aperture. The locking tongue is releasably retained in the retained position against biasing force of the biasing element. With the shield being displaced proximally from a first position to a second position, the locking tongue is released from the retained position and permitted to be displaced to the first position under force of the biasing element.

Abstract: A safety device having a tubular support for a needle mount end and a protective shield slidably mounted on the support from a set position, a retracted position and then to a locked position to covers the needle. A locking member mounted on the support, within the shield and a cam follower is engaged with a cam profile on the locking member. Forward axial movement of the support relative to the locking member causes the locking member to rotate relative to the support. The shield has a guide defining a shoulder towards its rearward end and an abutment on the locking member is receivable behind the shoulder when the shield is in its locked position. A spring acts such that when the locking member is turned to engage its abutment with the shoulder of the shield when the latter is in its locked position, so preventing subsequent rearward movement thereof.

Abstract: Drug delivery device, comprising a body unit having a first opening and a second opening, a plunger arranged such that its distal end is positioned inside the body unit, wherein the plunger is moveable in the distal direction with respect to the body unit, a needle assembly, with a proximal end and a distal end comprising a needle, wherein the proximal end of the needle assembly and the distal end of the plunger are configured such that they can get into a vacuum connection.

Abstract: The invention relates to an auto-injector for administering a dose of a liquid medicament, comprising: an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, wherein the syringe is slidably arranged with respect to the housing, spring means capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end, operating the syringe to supply the dose of medicament, and retracting the syringe with the needle into the covered position after delivering the medicament, activating means. The spring means is a single drive spring arranged to be grounded at a distal end in the housing for advancing the needle and for injecting the dose of medicament via a plunger. The drive spring has its ground in the housing switched to its proximal end for retracting the syringe. An interlock sleeve is telescoped in the proximal end of the housing.

Abstract: A housing has upper, lower, and central sections having a common axis and forming an interior chamber. An opening in the intermediate section has upper, lower, and sides edges. A flap has one edge coupled with the opening and covers the opening. A support is slidable between extended and retracted orientations. The support has central, upper, and lower extents. A cylindrical bore extends through the support. The support has legs, including a short leg, extending downwardly and outwardly and adapted to be radially contracted with the short leg within the opening restrained from downward movement. The flap is adapted to be depressed to move the short leg from contact with the opening and spring the legs outwardly to move the support from the extended orientation to the retracted orientation. Upper and lower needles extend from the upper and lower extents of the support for movement therewith.

Abstract: A medical injector is provided herein having a body and a needle mounting surface movable relative to the body, the needle mounting surface having features for mounting a needle thereto. In an initial state, the needle mounting surface is disposed within the body with no needle mounted thereto. With relative movement between the body and the needle mounting surface, the needle mounting surface is urged out of the body. Advantageously, a medical injector is provided which ensures proper sequence in preparation of the device, particularly with respect to the step of allowing mounting of a medical needle to the device subsequent to preparation of the medicament to be administered.

Abstract: A drug solution transferring device that can suppress dispersion of a toxic drug solution to a surrounding environment is provided. The drug solution transferring device includes a barrel provided with an opening, and a connection tool for connection to the barrel. The barrel includes an elastic member for closing the opening. The elastic member is formed of a plurality of membranes overlaid together. The membrane has a projection projecting into the barrel. The connection tool includes a first needle having a sharp tip end. The first needle has a liquid hole extending in an extending direction of the first needle. When the needle penetrates through the projection of the membrane, an inside and an outside of the barrel are in communication with each other through the liquid hole to allow transference of the drug solution between the barrel and the connection tool.

Abstract: A safety device is adapted to be sleeved on a needle unit of a syringe. The safety device includes a barrel unit movable with respect to a base seat of the needle unit and having a connecting end portion and a flexible end portion that has a pair of coupling sections provided respectively with first and second engaging members. The flexible end portion is operable between an opened state, where the coupling sections define an opening that permits extension of a cannula of the needle unit when the barrel unit is in a retracted state, and a closed state, where the flexible end portion deforms to result in engagement between the first and second engaging members to thereby close the opening when the barrel unit is moved to an extended state.

Abstract: A syringe which disperses medicate across a zone in the body during apparent conventional operation. The improved syringe includes a barrel, a plunger, and an operating cylinder. In operation, the needle of the syringe is inserted into the body at the distal portion of the portion of the body which is to receive the medicate. A single arm is attached to the barrel and passes through an operating cylinder with a thumb rest on its top. As a result, in operation, the user draws the single arm up to the thumb rest, thus causing the syringe to withdraw during injection and leaving a patch of medicate during operation.

Abstract: An attachment for a parenteral device, the device comprising a body and an outlet for conveying fluid, the attachment comprises a housing (12) adapted for engagement with the body, an elongate hollow needle (30), having an outer end (32) and an inner end (34), with an aperture at both ends, a carrier (40) for carrying the needle, the carrier being movable relative to the housing from a first, position, at which the outer end is received within the housing, to a second position at which the outer end extends from the housing and the carrier being movable from second position to first position, and the housing having a flow path extending, when the carrier is in second position, between the outlet and the carrier, wherein the needle is open at the inner end; whereby when the carrier is positioned in second position the inner end is brought into communication with the flow path.

Abstract: A system includes a medicament delivery device and a container configured to receive at least a portion of the medicament delivery device. The medicament delivery device includes an actuator and a first electronic circuit system. The actuator is configured to initiate delivery of a medicament into a body when the actuator is moved from a first position to a second position. The first electronic circuit system is configured to output a first electronic signal when the actuator is moved from the first position to the second position. The container includes a second electronic circuit system configured to receive the first electronic signal. The second electronic circuit system is configured to output a second electronic signal associated with the first electronic signal.

Abstract: Hypodermic syringe having a barrel which with an inner wall thereof defines a reservoir, a closing-off device near the first end of the barrel, and a plunger that is movably placed in the second end of the barrel, wherein the closing-off device comprises a circumferential wall that sealingly abuts the inner wall of the barrel, at the side facing away from the nozzle is provided with a recess extending along a centre line of the closing-off device and over the full width thereof, which recess merges into the through-opening, with in the recess two diametrically opposite flexible locking members, extending in the longitudinal direction of the recess and towards the inner wall, which locking members engage into diametrically placed locking grooves in the inner wall, and at the side facing away from the nozzle, at a circumferential part of the closing-off device situated outside of the recess, is provided with two diametrically opposite and radially outwardly extending blocking members, that engage in diametrical

Abstract: The invention relates to an auto-injector for administering a dose of a liquid medicament (M), comprising: an elongate housing arranged to contain a syringe, the housing having a distal end (D) and a proximal end (P) with an orifice, wherein the syringe is slidably arranged with respect to the housing, a drive spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), and operating the syringe to supply the dose of medicament (M), and activating means arranged to lock the drive spring in a compressed state and capable of releasing the drive spring for injection, wherein the elongate housing comprises a distal portion and a proximal portion connected by a hinge, the portions rotatable about the hinge between an aligned position and a maximum opening angle, wherein the drive spring may be compressed by rotating the portions towards the maximum opening angle, wherein the activating means are arrang

Abstract: A syringe (1) comprises a barrel (2) for containing a substance to be injected, a needle carrier (12) for carrying a needle (10), and a plunger (3) which is adapted to be movable in the barrel 2 to expel the substance to be injected from the needle (10). The plunger (3) has a first part (3a), a second part (3b) and a resilient member (6) therebetween, the first (3a) and second (3b) parts being adapted to be releasably locked together to hold the resilient member (6) in a compressed state. In use, the first part 3a of the plunger (3) and the needle carrier (12) are adapted to engage one another following expulsion of the substance, and the second part (3b) of the plunger (3) is adapted to be unlocked from the first part (3a) following said engagement, allowing the resilient member (6) to expand to propel the needle carrier (12) into the barrel (2).

Abstract: A system for perfusion management that monitors, maintains, diagnoses, or treats perfusion deficiencies.

Abstract: A system for perfusion management that monitors, maintains, diagnoses, or treats perfusion deficiencies.

Abstract: A retractable syringe, plunger and releasable needle retaining assembly are provided. The retractable syringe typically has a glass barrel and is prefilled with fluid contents before use. The releasable needle retaining system comprises a retractable needle, a needle seal, a retaining member and an ejector member that is operable to release the retractable needle from the retaining member. The retaining member has a mating surface for mounting to a complementary mating surface of an interior wall of a syringe barrel. The plunger comprises a plunger outer, a plunger rod frangibly connected to a controlling member, a spring and a unitary plunger seal capable of engaging the retractable needle, wherein the plunger rod, plunger outer and the controlling member co-operate to releasably maintain the spring in an initially compressed state. After delivery of fluid contents of the syringe, the plunger forces the ejector member to release the retractable needle from the retaining member.

Abstract: A system for perfusion management that monitors, maintains, diagnoses, or treats perfusion deficiencies.

Abstract: An injection device (10) comprising a housing (12), a needle hub (38) slidable within the housing (12), a needle (40) having a distal end piercing tip (42) and a proximal end piercing tip (44), the needle hub being moveable from a first position wherein the distal end piercing tip (42) is within the housing to a second position wherein the distal end piercing tip (42) extends outwardly of the housing (12), a spring (23) biasing the needle hub (38) towards the first position, and a cartridge receiving member (48) mounted within the housing (12), and a plunger rod assembly (66) for exerting pressure on the cartridge receiving member (48) to move the cartridge (26) and the needle hub (38) from the first position to the second position, the plunger rod assembly (66) and the cartridge receiving member (48) being arranged such that when the cartridge rod assembly is pushed, a rotational movement is imparted to the cartridge receiving member (48) to thereby prevent access to the cartridge after injection.

Abstract: A cartridge for radiopharmaceutical packaging includes a low UV-absorbing plastic barrel, closed at one end by a cap and at the other by a piston. A shoulder cooperates with the barrel in a double-level snap-on system with a cavity cooperating with an injection fitting sleeve to make a seal. At a first end the cap has a peel-off porous liner covering the cavity. Radial fins protrude inside the cavity, for screwing the injection fitting and second radial fins protrude outside of the cap to fix to a cartridge protection shield. A second end minimizes a shadow area of UV flash lamp sterilization and ensures clearance for inserting an injection spike. The second end has a reduced wall thickness pierced by the spike during set up for dispensing of the pharmaceutical. An external cylindrical zone at the second end ensures leak tightness between the cap and the barrel.

Abstract: A drug delivery device (500), including a body (504) having a needle opening (508) and a reservoir (164, 176) disposed therein for containing a medicament, and an injection needle (152) for penetrating the skin of a patient, the needle (152) providing a path for the medicament between the reservoir (164, 176) and the patient, and selectively protruding from the body (504) through the needle opening (508). The device (500) also includes safety means (576, 548, 552, 532, 512) for automatically retracting the needle (152) within the body (504) and covering the needle opening (508) upon removal of the device (500) from the patient.

Abstract: A system for injecting a fluid medicament into a patient includes a drive mechanism, and a cassette loaded with a pre-filled hypodermic syringe. When the cassette is loaded, the syringe is held firmly inside and the cassette can be selectively engaged with the drive mechanism. The drive mechanism has two motors. A first motor initially moves the hypodermic syringe from a position inside the cassette where its needle is concealed, to a position where the needle extends from the cassette for insertion into a patient for an injection. With the needle inserted, a second motor pushes the syringe stopper to expel a fluid medicament from the syringe. After an injection, the first motor withdraws the syringe back into concealment inside the cassette, to again firmly hold the syringe on the cassette. The cassette and syringe, in combination, can then be removed from the drive mechanism and discarded.

Abstract: A pen needle assembly is provided herein having a hub with a distal end and a proximal end; a needle fixed to the hub and having a distal end, for insertion into a patient, and a proximal end; an inner shield disposed proximally of the hub; a spring disposed between the inner shield and the hub and configured to bias the hub distally; an outer shield with a distal end, a proximal end, and a tubular body at least partially encircling a portion of the needle with at least portions located radially outward further from the needle than the inner shield such that the outer shield at least partially encases the hub, the needle, the inner shield, and the spring; and a releasable retaining assembly configured to releasably retain the hub in a first locked state against the biasing of the spring. The distal end of the needle is covered by the outer shield with the hub being in the first locked state. Upon release of the releasable retaining assembly, the hub moves under force of the spring to an unlocked second state.

Abstract: The invention provides a cartridge-type injection needle and injector. The injection needle cartridge has a substantially columnar retaining member for retaining the injection needle penetrating therethrough and a pair of holder members forming a containing space for containing the retaining member. The paired holding members are formed by a first holder member having a first bottom plate and a first slider section and a second holder member having a second bottom plate facing to the first bottom plate and a second slider section. The containing space is axially extendable and retractable in the state in which the slider sections are alternately displaced along the outer periphery of the retaining member and is not axially retractable in the state in which the extreme end faces of the slider sections face to each other.

Abstract: The present invention provides for an injection device including a syringe with a proximal end, a distal end, a needle extending from the distal end, and a plunger inserted into the proximal end. A guard is slidable on the syringe, has a proximal end, a distal end, and is biased from a first position wherein the needle is exposed towards a second position wherein the guard covers the needle. The injection device includes first and second sets of cooperating detents for retaining the guard and syringe in the first and second positions, respectively. A latch member extends proximally from the guard that is engageable by the plunger as the plunger is depressed to release the first set of cooperating detents. Upon release, a spring element biases the guard towards the second position until the second set of cooperating detents engage and secure the guard in the second position.

Abstract: A device for retaining and dispensing a free-flowing substance includes a syringe-like retaining body (12) in which a retaining space (46) is formed. A displaceable piston (22) is axially introduced into the retaining space (46) and the retaining body (12) is provided with a dispensing nozzle (18) on its front end facing away from the piston (22). A locking pin (36) through which at least one transverse channel (44) passes, with an axial channel (42) branching off therefrom, is provided on the inside of the dispensing nozzle (18). In a closed position of the locking pin (36), a flow connection between the retaining space (46) and the transverse channel (44) is blocked. In an activation position of the locking pin (36), the transverse channel (44) is connected to the retaining space (46), so that the free-flowing substance can be dispensed from the retaining space (46) via the transverse channel (44) and the axial channel (42).

Abstract: The invention provides a syringe or autoinjector for dispensing a drug comprising a rigid syringe body containing the drug, an oxygen absorbing material, a separating element between the drug and oxygen absorbing material to prevent the drug from contacting the oxygen absorbing material but which allows oxygen to pass from the drug to the oxygen absorbing material, and an oxygen impermeable container enclosing both the drug and the oxygen absorbing material, wherein the oxygen impermeable container partially or fully forms the rigid syringe body or is held within the rigid syringe body.

Abstract: A retractable syringe (11) and plunger (20) therefore are provided, whereby the plunger comprises a controlling means (62) which facilitates control of the rate of retraction of the retractable needle. By controlling the rate of needle retraction, the likelihood of blood spattering is reduced, thereby improving the user-friendliness and appeal of the retractable syringe. Typically, the syringe is a prefilled syringe. Following plunger depression, a symmetrical ejector member (92) releases the retractable needle (40) from a retaining member (30) to thereby allow retraction of the retractable needle. Needle retraction is facilitated by a biasing means (70), such as a spring or other compressible and/or de-compressible device. The plunger comprises a plunger housing (21), in which is located the controlling means. The controlling means may be a pneumatic air space (324) inside the plunger housing which automatically acts against the retracting needle to thereby control or regulate the rate of retraction.

Abstract: A retractable safety syringe may comprise a needle, needle holder, syringe body, and a plunger. A proximal portion of the body and a piston of the plunger may define a variable vacuum compartment. A through hole pneumatically connecting ambient air and the variable vacuum compartment may be formed through a thumb platform and rigid shaft of the plunger for allowing air to escape out of the variable vacuum compartment when a piston of the plunger is traversed toward the retracted position and allow air to be introduced into the variable vacuum compartment when the piston is traversed toward the engaged position. A retraction force may be created by the variable vacuum compartment by covering an entrance of the through hole and traversing the piston to the engaged position. At the engaged position, the piston may engage the needle holder and the retraction force may retract the piston, needle holder and needle into the syringe body to prevent accidental needle pricking and needle reuse.

Abstract: A retractable syringe (30) comprising a hollow barrel (32) with a radially inwardly facing abutment surface (54) and a needle hub (40) having first engagement formation (42) integrally formed with the needle hub. A radially outer portion (50) of the first engagement formation (42) is engaged with the abutment surface (54) to radially inwardly bias the first engagement formation (42). A plunger includes a second engagement formation (60) which the first engagement formation captively engages at the end of a stroke thereby engaging the plunger (34) with the needle hub (40). The needle tip is retractable into the barrel (34) upon application of a predetermined longitudinal force to the plunger (34).

Abstract: The syringe is intended for one-off use and has a syringe barrel (1), a barrel stopper (12) which can be displaced in the syringe barrel (1) by means of a plunger rod (11) and a needle unit (25) accommodated in the syringe barrel (1). The plunger rod (11) and the needle unit (25) are connected to one another by coupling means (20, 40) in order to retract the needle unit (25) into the syringe barrel (1) after the injection. As proposed by the invention, the needle unit (25) comprises a needle holder (26) made from plastic surrounding an injection needle (27) made from stainless steel along part of its length, which is closed off from an interior of the syringe barrel (1) containing an injection solution (50) by means of a seal insert (36) made from pharmaceutical rubber through the injection needle (27) extends from the rear end. As a result of this feature, an injection solution (50) contained in the syringe is in contact exclusively with permitted materials and the syringe can therefore be stored pre-filled.

Abstract: A safety injector comprises a needle hub attached by a needle, a hollow barrel for engaging with the needle hub and guiding the needle hub to retract into the hollow barrel, and a plunger combination settled in the hollow barrel. The plunger combination comprises a retractable plunger and a hollow plunger partially telescoped with the retractable plunger, wherein at least one raised portion is formed on an outer wall of the retractable plunger and at a telescoping portion for engaging at least one depression formed on an inner wall of the hollow plunger so that when the plunger combination continuously receives a pushing force after the safety injector is used to perform the injection operation, the retractable plunger can smoothly retract into the hollow plunger. Consequently, a space in the hollow barrel can be spared for accommodating the retracted needle hub.

Abstract: An injection device 100 comprises a housing 102 which is adapted to receive a fluid container 120. The housing 102 is also adapted to hold the fluid container 120 stationary relative to the housing 102 during use of the device 100. The injection device 100 also comprises a discharge nozzle 128 which is movable between a first retracted position in which the discharge nozzle 128 is contained within the housing 102 and a first extended position in which the discharge nozzle 128 has moved relative to the fluid container 120 and extends from the housing 102 through an exit aperture 138 of the housing 102. The fluid container 120 and discharge nozzle 128 are in fluid communication with each other in the first extended position. Extension of the discharge nozzle and expulsion of a predetermined and fixed quantity of fluid can be achieved in a single continuous action.

Abstract: A needle gradually auto-retractable safety medical syringe includes a hollow barrel, a plunger provided in the barrel, a piston provided on the head of the plunger, a hub provided on the head of the barrel. The hub includes an elastic connecting hub providing with a needle and a hub sheath for fixing the elastic connecting hub, the elastic connecting hub may be disengaged with the head of the barrel and retracted with the effect of a spring after having finished the injection, a regually retractable bracket which are integrated with each other, the regually retractable bracket forms with at least two elastic supporting claws engaged to the inner wall of the pushing tube of the front end of the plunger after the injection finished, the elastic connecting hub allows the regually retractable device to retract in the barrel with the effect of the spring, and allows the needle to be drawn into the barrel.

Abstract: A retractable needle safety syringe is provided having a braking mechanism. The braking mechanism may be disposed at a proximal portion of a syringe body of the syringe. The braking mechanism may comprise a brake member which is traversable between a braking position and a released position. At the braking position, fingers of the brake member frictionally engage an outer surface of the shaft of a plunger of the syringe. The frictional engagement counterbalances a retraction force that urges a piston of the syringe toward a retracted position. When the brake members are traversed to the released position, the fingers do not press against the outer surface of the shaft. As such, the retraction force may traverse the piston toward the retracted position and traverse a needle and needle holder into the body of the syringe.

Abstract: The invention relates to a cannula protector that serves to cover a cannula which has been attached to a syringe, particularly for the purpose of preventing unintended damage to the cannula as well as contamination of the cannula shortly before its use on the patient. The invention also relates to a single-use syringe system with such a cannula protector. A cannula protector according to these principles includes a tubular sleeve and a bellows which, in part together with the sleeve, completely encloses at least the area of the cannula. The cannula protector usually also comprises a radially acting clamp or engagement spring, whose function is to hold the inserted single-use syringe in the desired position, or to activate the protective mechanism.

Abstract: A retractable safety syringe may have a ferrule and needle which are selectively removeable from a distal end of a syringe body. In particular, the ferrule may have an annular flange. A wedge element may be frictionally engaged to the ferrule and a distal end of the syringe body. To retract the needle into the syringe body, a punch of a piston displaces the wedge element off of an annular flange of the ferrule. At about the same time, longitudinally offset tabs engage an annular flange and retract the needle into the syringe body via a retraction force created by a variable vacuum compartment or tension member. Alternatively, the ferrule and needle may be temporarily fixed to the distal end of the syringe body via a detent and/or o-ring which engages a lower undercut groove and an upper undercut groove of the ferrule. An annular ring of the piston may have longitudinal offset tabs which engage an annular ring of the ferrule.

Abstract: A safety syringe with a needle retraction device includes a syringe cylinder, a push rod inserted in the syringe cylinder to push the medicinal liquid, a seat disposed at a front end of the syringe cylinder to receive a syringe needle, wherein the push rod includes a pushing knob with a through bore mounted at a top end thereof; and the seat includes a connection unit provided at a rear end thereof, the pushing knob allows to be pushed into the connection unit, because the pushing knob is pressed to reduce its outer diameter by using the through bore, thereby prevent injuring medicinal personals and obtaining safe protection.

Abstract: A device for retaining and dispensing a free-flowing substance includes a syringe-like retaining body (12) in which a retaining space (46) is formed. A displaceable piston (22) is axially introduced into the retaining space (46) and the retaining body (12) is provided with a dispensing nozzle (18) on its front end facing away from the piston (22). A locking pin (36) through which at least one transverse channel (44) passes, with an axial channel (42) branching off therefrom, is provided on the inside of the dispensing nozzle (18). In a closed position of the locking pin (36), a flow connection between the retaining space (46) and the transverse channel (44) is blocked. In an activation position of the locking pin (36), the transverse channel (44) is connected to the retaining space (46), so that the free-flowing substance can be dispensed from the retaining space (46) via the transverse channel (44) and the axial channel (42).

Abstract: A safety syringe includes an outer barrel, a needle unit, an outer barrel plug, an inner barrel, an inner barrel plug, a needle clamper, and a vacuum generating device. The needle unit is disposed within the front end of the outer barrel. The outer barrel plug is disposed within the outer barrel; the outer barrel plug is connected with the needle unit so as to fix the needle unit. The inner barrel plug is disposed within the front end of the inner barrel. The needle clamper is connected with the inner barrel plug. The needle clamper is able to clamp a rear opening of the needle unit. The vacuum generating device is disposed within the inner barrel, and the needle unit can be retracted into the inner barrel by the low pressure which is generated by the vacuum generating device.

Abstract: A safety syringe adapted consists of an outer casing that supports a conventional hypodermic needle and an inner casing which supports a blunt cannula that is disposed inside the inner lumen of the hypodermic needle. The inner casing is keyed to the outer casing by one or more pins that engage helical tracks formed along the inner surface of the outer casing. Rotation of the inner casing relative to the outer casing advances the inner casing so that the blunt cannula is moved from a retracted position within the needle to an extended position in which the blunt end of the cannula extends beyond the tip of the needle.

Abstract: An automatic injector dispenses a predetermined dose of medicament without a user having to manually force the needle into an injection site. The automatic injector includes a needle cover having a locked retracted position with respect to the injector housing prior to a medicament dispensing operation. The needle cover is operative to engage an injection site prior to a medicament dispensing operation.

Abstract: A syringe includes a hollow barrel and a hollow plunger extending into the barrel and being axially movable within the barrel, where the plunger includes an end wall that is releasably secured to the plunger at an opening disposed at a distal end of the plunger and is movable to disengage with the plunger distal end opening during use of the syringe to facilitate access to a retraction cavity disposed within the plunger. A needle assembly is secured within and at a distal end of the barrel. The needle assembly includes a needle holder with a connector to secure a needle to the needle holder.

Abstract: A safety syringe includes a syringe cylinder, a push rod inserted in the syringe cylinder to push the medicinal liquid, a seat disposed at a front end of the syringe cylinder to receive a syringe needle, wherein the push rod includes a pushing knob with a through bore mounted at a top end thereof; and the seat includes a connection unit provided at a rear end thereof, the pushing knob allows to be pushed into the connection unit, because the pushing knob is pressed to reduce its outer diameter by using the through bore, thereby prevent injuring medicinal personals and obtaining safe protection.

Abstract: This invention relates to medical devices useful for infusion therapy and, more particularly, to a syringe that can be selectively used with a retractable needle or with frontal attachment devices such as luer hubs, valves or other connectors in needleless systems.

Abstract: An automatic injection device (100) adapted to automatically eject a dose of a medicament by automatically inserting a needle (112) into the skin of a user, ejecting a dose of a medicament through the needle, and subsequently retracting the needle into a housing (122) of the device.

Abstract: The present invention provides for an injection device including a syringe with a proximal end, a distal end, a needle extending from the distal end, and a plunger inserted into the proximal end. A guard is slidable on the syringe, has a proximal end, a distal end, and is biased from a first position wherein the needle is exposed towards a second position wherein the guard covers the needle. The injection device includes first and second sets of cooperating detents for retaining the guard and syringe in the first and second positions, respectively. A latch member extends proximally from the guard that is engageable by the plunger as the plunger is depressed to release the first set of cooperating detents. Upon release, a spring element biases the guard towards the second position until the second set of cooperating detents engage and secure the guard in the second position.