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.

Abstract: A medical injector apparatus is provided for carrying medications, for example epinephrine. The medical injector includes a safety guard, and a housing having a first casing portion and a second casing portion which are secured together to form a chamber therebetween. A pair of hinge portions provides pivoting motion of a safety guard. The pusher bar is not attached to the housing and is free to move within the chamber provided. A leaf spring is disposed between the stationary bar and the pusher bar to resiliently bias the pusher bar so as to be in a non-dispensing condition. The pusher bar is connected to a column which passes through an aperture in a stationary bar. The column is connected directly to a wedge-shaped member. A needle is secured to the wedge shaped member.

Abstract: The present invention is an injection device for injecting a fluid product from a reservoir includes a casing having at least two casing portions. The device also includes a mounting for the reservoir such as an ampoule containing the fluid product to be administered, wherein one casing portion at least partially surrounds the reservoir. An activating element for triggering fluid product administering is provided. The at least one casing portion surrounding the reservoir is movable relative to the other casing portion or parts, such that by moving the movable casing portion, the reservoir and/or an injection needle connected to the same is accessible from the outer side of the casing, in order to be replaced.

Abstract: A prefilled syringe of cartridge barrel having a tamper evident closure. Tamper evidence is provided by: a frangible tip seal which is integral with the tapered tip of the barrel; a frangible tip cap covering the tip, the tip seal and a portion of the distal end of the barrel; and an overwrap covering the frangible tip cap and the distal end of the barrel sealed to the distal end of the barrel by a tamper evident seal. The tapered tip is optionally equipped with a luer collar to receive an external luer connector Alternatively, the tapered tip can be provided with a bore therethrough which can be closed with an elastomeric plug and the external connector can be a tubing conduit.

Abstract: A needle protection device for a vial, or capsule, has a housing hingedly or flexibly connected to a needle collar by a hinge. The collar has a main portion configured to fit about at least a portion of the body of the vial and an extension configured to fit about at least a portion of the neck of the vial. A needle hub, movable along the neck of the vial and to which a needle extends, is interposed between the body and neck of the vial. The hub has a skirt portion that could be moved along the neck of the vial for capping or overlapping the extension of the collar to thereby non-removably secure the collar to the vial. An improved syringe assembly is effected when a vial of the instant invention is placed within a vial holder applicator, such as for example a CARPUJET applicator.

Abstract: The invention is a syringe needle Protection Cover, including a Needle Hub to secure the needle base and a side-opening cover with an Axial Slot to protect the needle. The needle is at the center of the needle base, and a Longitudinal Member forms a side-opening cover that integrates with the Needle Hub at one side via a Hinge. The Longitudinal Member opens easily and locks closed securely. When the Protection Cover is in the closed position, it is difficult to force open, thus making it difficult to reuse a needle. The protection cover gives users more than one visual indication that a needle has been used, locks in a closed position with multiple locking structures, and after use, deforms the needle so as to render it non-reusable.

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 syringe (10) has an elongated syringe body (12) including a tube (18), a perforated front wall (26) for receiving an injection needle (70), and a rear actuating plunger (14) movably mounted inside the tube (18). A mobile needle shield (16) is externally movable along the syringe body (12) between a retracted position and an active position. An axial coupling mechanism (54) is provided between the shield (16) and the actuating plunger (14) for their simultaneous displacement towards the front on a common section. A release mechanism (58) is provided for releasing the coupling mechanism (54) to disengage the actuating plunger (14) and the needle shield (16) when the needle shield (16) is finally set in place.

Abstract: A needle receptacle is provided for use with needle assemblies typically used in blood banks. The needle assemblies of the type concerned here have a needle mount with a forward end and a rearward end, a needle extending from the forward end of the needle mount and a flexible tube extending from the rearward end of the needle mount that connects the needle assembly in fluid-flow connection with a blood collection bag. The needle receptacle has an elongated hollow body with a front end and a rear end. The front end is open and sufficiently sized to permit the needle mount to pass axially through it. The rear end has a bore formed in it. The bore is sufficiently sized to permit the tube to pass axially through it, but too small to permit passage of the needle mount. There is also an opening formed in the body between the front end and the rear end for receiving the needle mount and the needle so that the hollow body can be slidably mounted onto the needle assembly.

Abstract: A protective assembly for a protruding portal shields a neck portion of the portal. The protective assembly is well suited for shielding a percutaneous access device during surgical implantation. The protective assembly includes a lid seating pin configured to seat within the interior of the portal and a lid secured to the pin extending over exterior portions of the portal and gapped from the portal face and the neck. Optionally, the pin inserts within a temporary turret engaging the interior of the portal.

Abstract: A safety hypodermic syringe is disclosed including a barrel and a needle cannula holder. The barrel comprises a stop ring suspended inside the front section thereof, and connecting ribs connected between the inside wall thereof and the stop ring. The needle cannula holder fastened to the front section of the barrel comprises a front extension hub holding a needle cannula, a plurality of wedge-like locating blocks protruded from the periphery of the front extension hub and stopped at the front side of the stop ring, and a shoulder stopped at the rear side of the stop ring. The needle cannula holder is constrained by an axial force exerted from the stop ring and connecting ribs of the barrel. After the service of the safety hypodermic syringe, the needle cannula holder is pushed more forwards to force the shoulder against the connecting ribs and to break the connecting ribs separate, for enabling the needle cannula holder and the needle cannula to be further pulled backwards into the inside of the barrel.

Abstract: The safety support device for a syringe comprises a support sheath (16) for the body (10) of the syringe and an inner sheath (18) suitable for sliding relative to the support sheath between a waiting, retracted position and an extended position for protecting the needle (14) of the syringe. The device has means for holding the syringe body (10) relative to the support sheath (16) and retaining means (30, 32, 22) suitable for being activated to retain the inner sheath in the waiting, retracted position inside the support sheath and for being deactivated by the piston (12) of the syringe to allow the inner sheath (18) to extend into its protective, extended position.

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: The injection syringe has at least one syringe body (12) provided with a needle (22) and a pusher (14) mounted so as to be able to move in the body (12). The syringe has a movable guard (36) for protecting the injection end (22A) of the needle. The guard (36) is able to move with respect to the body (12) between a position retracted in the body (12) and an active protection position. The guard (36) and the body (12) have associated projecting and recessed reliefs for holding the guard in a retracted position. It has a retractable member (70) for positive holding of the engagement of the said associated reliefs, when the guard (36) is in a retracted position. The pusher (14) and the said holding member (70) are adapted for a retraction of the said holding member (70) under the action of the pushing in of the pusher (14) into the body, at the end of injection, providing a release of the positive holding of the engagement of the associated reliefs.

Abstract: A safety syringe has a needle hub detachably mounted at a front end of the barrel and a plunger slidably received in the barrel and having a retaining column extending out from the engaging flange of the plunger. The needle hub has a pair of retaining plates with a slot defined between the retaining plates. The retaining column has a hook and a slanted face, such that when the retaining column is securely clamped by the retaining plates and the needle hub is forced to move inward the barrel, the needle hub is inclined with respect to the barrel.

Abstract: An improved safety syringe device includes a shield from which a vacuum needle extends and retracts, a vial that is telescopically received within a cavity of the shield and that attaches to the vacuum needle at its distal end, and a ring rotatably connected around a portion of the vial near its distal end. The vial includes a protrusion that engages with a tab on the ring to move the tab within a channel defined on the interior surface of the shield cavity. The safety syringe device further includes a temporary locking feature to maintain the vial at a generally fixed position within the shield during use of the syringe.

Abstract: An automatically operable safety shield system (10) for use with a syringe (60) comprises: an inner holder (20) into which said syringe (60) may be inserted; an outer shield (30) mounted outwards from said inner holder (20) axially movable between retracted and extended positions; a spring positioned between said inner holder (20) and said outer shield (30), urging said outer shield (30) to its extended position; said inner holder (20) having at least one first opening (130), distally thereto, at least one first indentation (170), and said outer shield (30) having at least one first stop member (300) engageable with said opening (130) when said outer shield (30) is in said retracted position engageable with said first indentation (170) when said outer shield (30) is in said extended position; the outer shield may be released from its retracted position by action of a trigger positioned within said inner holder or by a protrusion on the syringe plunger.

Abstract: A medical injection device including a shield system and a syringe coupled to the shield system. The shield system includes a syringe holder, a shield telescopically received in the holder and slidably coupled to the holder and an end fitting which isolates the syringe flange from the holder, preventing damage to the flange. A spring resiliently urges the shield from a retracted position to an extended position. Stop members are provided adjacent the distal end of the holder and the proximal end of the shield for maintaining the shield in the retracted position. The syringe is slidably coupled to the holder, and extends within the shield. Axial movement of the syringe with respect to the holder causes disengagement of the stop members, allowing the spring to move the shield to the extended position. Detents are provided on the holder for maintaining the shield in the extended position.

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.

Abstract: A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.

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-sheathed blood sampling needle for use with a standard vacutainer. The needle is housed in a protective hollow body and held in place with a non-tensioned elastic band. The needle may be extended outside the cover for use without removing the cover assembly from the needle, and may be locked into the use position with one hand. Moving the needle into the use position tensions the elastic band. After the sample is taken, the needle is unlocked and retracted back into the cover by the elastic band. Upon such retraction, the element used to extend the needle is either concealed or disconnected to prevent accidental reuse of the needle.

Abstract: A safety syringe with a needle sleeve lock is provided. The needle sleeve lock is put around a cap of the syringe with radially outward projected second stoppers at rear end of the cap located between a shoulder portion and two radially inward projected first stoppers inside the needle sleeve lock, such that the cap, a hub tightly fitted in the cap, and the needle sleeve lock together form a needle sleeve lock assembly, which allows the hub to temporarily locate closely before a neck portion of a barrel of the syringe, so that the syringe may be sterilized under high temperature without stress deformation and thermal deformation. When the cap is turned to separate the second stoppers on the cap from the first shoulder portion and the first stoppers of the needle sleeve lock and then depressed, the hub and a cannula held thereto are caused to move backward and be stably retained to the neck portion of the barrel in an airtight relation.

Abstract: The present invention relates to a one-time use disposable safety syringe, which will not leave any remnant of an injection behind and facilitate disposal of needles with safety after use, and more particularly to a disposable safety syringe, which consists of a barrel, a needle-setup tube to be connected by a connecting tip for a needle-setup tube at the upper end of said barrel, a syringe plunger to be inserted in said barrel to push the syringe, and a needle protective barrel, and which can, by means of making a packing protrusion formed on a injection packing at the upper end of said syringe plunger come into close contact with a residual-preventing outlet to prevent remaining of the injection solution, said hole being connected with the rear of said needle of said needle-setup tube, facilitate injection of the whole quantity of an injection, and which does, by allowing easily to separate the needle-setup tube with the needle securely inside from said barrel, make it possible to dispose of a used needle w

Abstract: A safety hypodermic syringe is disclosed including a barrel and a needle cannula holder. The barrel comprises a stop ring suspended inside the front section thereof, and connecting ribs connected between the inside wall thereof and the stop ring. The needle cannula holder fastened to the front section of the barrel comprises a front extension hub holding a needle cannula, a plurality of wedge-like locating blocks protruded from the periphery of the front extension hub and stopped at the front side of the stop ring, and a shoulder stopped at the rear side of the stop ring. The needle cannula holder is constrained by an axial force exerted from the stop ring and connecting ribs of the barrel. After the service of the safety hypodermic syringe, the needle cannula holder is pushed more forwards to force the shoulder against the connecting ribs and to break the connecting ribs separate, for enabling the needle cannula holder and the needle cannula to be further pulled backwards into the inside of the barrel.

Abstract: This invention relates to a syringe (10) and a sleeve (11) assembly wherein the needle (13) of the syringe (10) is retractable with respect to the sleeve (11). The sleeve (11) has an open end (18) and a closed end (19) with an aperture (20) through the closed end (19). A syringe (10) with a needle (13) located within the sleeve (11) is movable between a first position, in which the needle (13) is within the sleeve (11), and a second position where the needle (13) is located through the aperture (20) so that it protrudes from the closed end (19) of the sleeve (11). A biasing element (22) acts between the syringe (10) and the sleeve (11) and applies a retraction force to move the syringe (10) from the second position to the first position so as to withdraw the needle (13) from the closed end (19) of the sleeve (11). The invention allows automatic and failsafe retraction of the needle (13) once the syringe (10) and sleeve (11) assembly is discarded.

Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe.

Abstract: A protection device for medical needles connected to a portion of tube comprises: a protection casing (20) arranged to enclose and cover the needle after use, it being initially applied in a position to the rear of the point (11) of the needle; a front end (25) facing the point of the needle, to be rested against a foreign body (D3) for reaction in extracting the needle from the patient's body; means (30) for securing the device to the tube (15); and thrust means (21, 22) which when operated by the operator's finger (D1, D2) increase the distance between the securing means (30) and said front end (25) in order to cause the needle (10) to move towards the protection casing (20) until it lies inside the interior of this latter (20). During the extraction of the needle (10) from the patient's body (P), the device (1) is rigidly secured to the tube (15) in proximity to the needle (10), and the operator, by operating on the device, is able to direct the needle (10) as he wishes, to achieve its correct extraction.

Abstract: The present invention relates to an automatic injector having a drive assembly with an actuator extending from the rearward end portion of the housing and a removal resistant cover for preventing unintended operation of the actuator. The present invention also relates to a sealing arrangement wherein the needle is sealed within a sterilized needle chamber by at least three sealing members which cooperate to form the chamber. Also, the present invention relates to an injector in which the cartridge is mounted to a tubular cartridge mounting portion of the needle carrier with an annular sealing member disposed therebetween. The cartridge mounting portion has at least one generally axially extending groove which allows air to escape from the cartridge mounting portion as the cartridge is being moved forwardly to a medicament supplying position.

Abstract: Methods and apparatus of forming in situ tissue adherent barriers are provided using a sprayer capable of applying two or more viscous crosslinkable components to tissue. The sprayer comprises separate spray nozzles for each of two or more crosslinkable solutions, with each nozzle surrounded by an annular gas flow outlet. Crosslinkable solutions are stored in separate compartments and communicated under pressure to the spray nozzles. In the presence of gas flow through the annular gas flow outlets, the crosslinkable solutions are atomized and mixed in the gas flow to form a spray. Multi-component hydrogel systems suitable for use with the inventive methods and apparatus are also described.

Abstract: Methods and apparatus of forming in situ tissue adherent barriers are provided using a sprayer capable of applying two or more viscous crosslinkable solutions to tissue. The sprayer comprises separate spray nozzles for each of two or more crosslinkable solutions, wherein each nozzle is either surrounded by an annular gas flow outlet or in communication with a gas-pressurized chamber, and also may include valves that prevent backflow through the supply lines carrying the crosslinkable solutions, and a venting system for venting excess pressure for laparoscopic applications In the presence of gas flow, the crosslinkable solutions are atomized and mixed to form a spray. Multi-component hydrogel systems suitable for use with the inventive methods and apparatus are also described.

Abstract: A shielding device and method for injecting a patient with radioactive material from a syringe to reduce exposure of workers to the radioactive material in the syringe. After the injection, the syringe needle falls away from the shield, thereby minimizing the risk of contamination of the shield from the contaminated syringe needle.

Abstract: The device for applying one or several fluids, particularly a multi-component fluid, such as medical tissue or dental adhesives, comprises a head piece (9) having channels (25 to 28) for each fluid extending from an inlet side of the head piece (9) to a connection site of the head piece (9). The tubular body (10) comprises an inlet end facing the connection site of the head piece (9) and an outlet end facing away from the inlet end. The tubular body (10) comprises an outer wall, which, at least sectionally, is configured such that the tubular body (10) is plastically deformable, particularly plastically bendable.

Abstract: A needle protector device including a mount having a needle subassembly attached to an upper end, an open lower end, and an aperture in the side of the mount. The aperture includes an entrance position adjacent to the lower end of the mount and an armed position radially spaced from the entrance position by an angled portion of the mount. A protective cover is coupled to the mount and has a protruding lug which engages the mount aperture. The cover is adapted for being a needle protection position in which the needle tip is covered and the cover is not retractable, an armed position in which the needle tip is covered and the cover is retractable, and a retracted position in which the needle tip extends through an open lower end of the cover. A spring having a pair of axial extensions is coupled between the mount and the cover. The spring is biased in rotation and compression during assembly of the device, causing the cover to be automatically urged to the needle protection position.

Abstract: An IV infusion or collection device with a needle being manually extended to a locked extendable position while extending a resilient member, and a lock-release mechanism for releasing the lock, whereby the resilient force retracts the needle into a shielding housing.

Abstract: An automatic medicament injector employing a non-coring needle having side port geometry optimized to minimize or eliminate the coring of a rubber seal or septum when impaled by the internal needle tip of the cannula. The geometry avoids direct exposure of the butt end face of the needle to the rubber seal by providing a crimp to the material at the butt end and openings in the side thereof using electro-discharge machining (EDM) processes providing plural openings therein for introduction of medicament or aspiration through the side port geometry. The automatic medicament injector structure facilitates administration of a medicament to a predetermined target tissue avoiding exposure of the medicament or drug to tissues which would undesirably be damaged by such exposure.

Abstract: This invention relates to a holder for use in combination with a pre-filled cartridge-needle unit, the holder comprising a hollow body sized for housing the cartridge-needle unit therein, and provision for allowing the body to move axially relative to the cartridge-needle unit. In one preferred embodiment, the distal end of the body is elliptical in cross section and the proximal end of the body is circular in cross section. In another preferred embodiment, the body comprises a pair of cam slots at the distal end and a pair or retaining slots at the proximal end, the slots being sized to accept a circumferential ring on the cartridge-needle unit and positioned to hold the cartridge-needle units in use and safe positions. The holder is easier to use and manufacture and reduces the susceptibility of health care workers to accidental needle strikes.

Abstract: A safety needle device includes a barrel having an inside surface defining a chamber and an open proximal end. A distal end includes a needle cannula attached thereto. The needle cannula includes a distal tip and a lumen therethrough in fluid communication with the chamber. A needle guard is mounted on the barrel for movement relative to the barrel from a retracted position in which the needle guard does not materially obstruct access to the distal tip of the needle cannula and an extended position in which the needle guard obstructs access to the distal tip. The safety needle device includes structure for releasably retaining the needle guard in the retracted position and for locking the needle guard in the extended position.

Abstract: The present invention is a fine needle cytology aspiration device having a sliding valve which allows the vacuum in the needle to be released and also the sample to be withdrawn without contamination while allowing the surgeon to use only one hand for carrying out these operations. Further, a protective sheath is described which reduces the risk of needle-stick injuries.

Abstract: A parenteral device having a body slidably supporting a hollow needle. The needle is slidable between a first position in which it is completely retracted within the body and a second position wherein a portion of the needle projects outside of the body. The body further houses a chamber isolated from the needle when the needle is in the first position. Movement of the needle into the second position causes an end of the needle to pierce a wall of the chamber thereby establishing communication between the chamber and needle.

Abstract: A first object of the invention is to insure that medication filled syringe equipment can be kept sterile at all stages until use, is protected against malicious unauthorized use, can be packaged in a simpler way and can protect the medication to be in a stable form. A second object of the invention is to insure that an additional liquid such as an anesthetic, another medication in liquid form or a solubilizer can be aspirated by medication filled syringe equipment in an aseptic appropriate manner before injection. To attain these objects, the equipment of the invention comprises barrel 1, needle attaching portion 2 fitted with cap 11, plunger rod 22, and sealing device 31 as tube 32 of a heat-shrinkable film that is slipped over the area from the cap 11 through the barrel 1 to the basal head 23 of the plunger rod 22.

Abstract: A catheter with a self-expanding stent of a permeable mesh of stiff intersecting fibers is provided. A tubular outer catheter shaft holds the stent under tension at its distal end and from which the stent can be released for placement. A displaceable inner catheter inside the tubular outer catheter shaft supports the stent axially at its proximal end. In order to release the stent, the outer catheter shaft is retracted with respect to the inner catheter. A process for producing this catheter is also described. The stent is secured by gripping it at its proximal end in such a way that it forms a permeable mesh cone that expands automatically together with the stent and has a radius that increases gradually to the radius of the relaxed stent. The stent is securely anchored on the inner catheter with the help of the mesh cone.

Abstract: A syringe shielding apparatus comprising an adapter having a tubular collar and a flexible snap ring joined by a living hinge, and a needle shield. Radially extending projections, provided on the tubular collar, slide within longitudinally extending slots in the needle shield, allowing the longitudinal extension and retraction of the needle shield relative to the housing of the syringe. The flexible snap ring expands into a groove in the needle shield at extension. Expansion of the snap ring into the groove in the needle shield locks the shield in the extended position over the syringe needle.

Abstract: A safety hypodermic needle and shielding device has a spring-loaded safety shield (1) with a one-way locking device (18, 21) which prevents return travel of the safety shield in a direction towards a syringe (3). This prevents exposure of a needle point (15) that has been used. A preferred one-way locking device is a pivot plate (18) positioned in the shielding device with the syringe-needle cannula shaft (2) extended through a locking orifice (20) in the pivot plate. For low-angle use of the syringe, a spring for spring-loading the shielding device is at least one leaf spring (17 or 17a) having expansion in a plane parallel to the syringe-needle shaft. A cannula sheath (14) has a cannula skirt (13) that is positioned in locking relationship to a quick-release latch (6, 24, 30) as a safety lock prior to use.

Abstract: This invention relates to a holder for use in combination with a pre-filled cartridge-needle unit, the holder comprising a hollow body sized for housing the cartridge-needle unit therein, and means for permitting the body to move axially relative to the cartridge-needle unit. In one preferred embodiment, the distal end of the body is elliptical in cross section and the proximal end of the body is circular in cross section. In another preferred embodiment, the body comprises a pair of cam slots at the distal end and a pair or retaining slots at the proximal end, the slots being sized to accept a circumferential ring on the cartridge-needle unit and positioned to hold the cartridge-needle units in use and safe positions. The holder is easier to use and manufacture and reduces the susceptibility of health care workers to accidental needle strikes.

Abstract: A safety syringe adapter (4) has a hollow body (26) sized to house a cartridge-needle unit (6) to which a carrier (24) is fixed. The cartridge-needle unit and carrier therewith are movable from a use position, with the needle tip (58) exposed, to a safe disposal position, with the needle tip within the body. A stem assembly (28) has an elongate stem (60) and a coaxial tubular stem extension (64) and is movable to a post-injection position, at which the stem extension becomes secured to the carrier. Pulling the stem assembly proximally causes the cartridge-needle unit to move to its safe-disposal position so the needle tip is within the body for safe disposal.

Abstract: An attachment to a parenteral device (11) where the parenteral device (11) comprises a body (12) having a duct (15) which is convey a parenteral fluid, the attachment comprising a housing (20) adapted to be removably engageable with the body (12) and to be rigidly supported by the body when in engagement therewith, the housing (20) having a flow path (22, 23) which communicates with the duct (15) on engagement of the housing with the body; a hollow needle body (26) slidably supported within the housing (20) and comprising a hollow needle having a free end; the needle body (26) is slidably received within the housing (20) for movement between a first position at which the free end is received within the housing and a second position at which the free end extends from the housing, and the needle body is movable from the second position to the first position; a retaining means (27, 32, 33) provided to retain the needle body (26) in the first or second position; the needle having a first aperture (28) provided at