Abstract: A system for injecting includes a syringe body having proximal and distal ends, a syringe interior, and a syringe flange at the proximal end thereof. The system also includes an injectable fluid disposed in the syringe interior. The system further includes a finger flange coupled to the syringe flange. Moreover, the system includes a stopper member disposed in the syringe interior. In addition, the system includes a plunger ratchet member coupled to the stopper member. The system also includes a plunger tube disposed coaxially around at least a portion of the plunger ratchet member and operatively coupled thereto.

Abstract: A syringe type ejection device capable of reducing an amount of residual liquid is provided. A syringe type ejection device includes: a barrel; a nozzle disposed to face the barrel; and a core inserted in the nozzle, the barrel having a large-diameter portion provided with a discharge space for discharging liquid, the nozzle being provided with a holding space for holding the core, the holding space being in communication with the discharge space, and the core being inserted in the discharge space.

Abstract: A pressure jacket for use with a fluid injector includes a barrel having a distal end, a proximal end, and a sidewall extending between the distal end and the proximal end along a longitudinal axis. The pressure jacket includes at least one engagement member protruding from a terminal portion of the proximal end of the barrel in a proximal direction along the longitudinal axis. The at least one engagement member tapers axially in a direction from the distal end toward the proximal end of the barrel. The at least one engagement member engages with a locking mechanism on the fluid injector to releasably lock the pressure jacket with the fluid injector. A taper of the at least one engagement member rotationally guides the barrel into self-alignment with the locking mechanism and axially ejects the barrel upon rotation of the barrel about the longitudinal axis.

Abstract: A drug delivery device is provided for delivering a drug to a target tissue site. The drug delivery device comprises a body comprising a proximal end and a distal end and a chamber disposed therebetween. An upper portion is disposed about the proximal end of the body. A retaining member is disposed within a wall of the body and engageable with the chamber and a plunger is configured for disposal within the upper portion and the chamber. The upper portion is movable about the proximal end of the body to open the chamber such that the plunger is disposed within a passageway defined within the chamber, and movement of the plunger in a distal direction pushes the retaining member such that the drug moves out of the body. Methods are also disclosed.

Abstract: An adapter for use with an appliance for administering an injectable product, the adapter serving to create a product connection between a catheter and a product container that can be inserted into the appliance, and including a thread for screwing the adapter to the appliance, a stop for fixing the container in the longitudinal direction of the thread, an attachment piece to which the catheter may be connected, and a product channel that extends through the attachment piece and the thread.

Abstract: A needle assembly (14), for use with a syringe (3) and a medicine cartridge (12); has a molded body (14B). A needle (14A) is housed in, affixed to, and reinforced by the molded body (14B). The needle (14A) has a single tube which includes a tip (311), and a tip-ward needle (31) extending ring-ward from said tip into the molded body (14B). The tip-ward needle becomes a cartridge needle (531) within the molded body (14B). The cartridge needle (531) extends tip-ward from the molded body (14B). The molded body (14B), is molded as a single structure, and includes: a domed cylinder (248), at the molded body (14B)'s tip-ward end; a flange (22) ringward of the molded body (14B); and fins (251). The fins are molded radially from the domed cylinder (248). The fins are vertically molded from the flange (22); and reinforce the fins to the flange. A second cylinder (244), is extended ringward from the flange (22). A conical portion (15) is molded ringward from the second cylinder (244).

Abstract: A cartridge syringe system includes a syringe (5). The syringe has a tip-ward direction and a ring-ward direction. The syringe (5) has a syringe body (9) and an actuator ring (7). A shaft (10) slidably mounts the actuator ring (7) to the syringe body (9), with a harpoon (11) at a tip-ward end of the shaft (10). The syringe body (9) has a spiral mount external to the syringe body (9) for removably mounting a sheath (20) to the syringe body (9), on a cooperating internal spiral sheath mount. The syringe body (9) and the sheath have similar openings. The sheath opening can be rotated to coincide with the syringe body opening, for inserting a needle assembly into the syringe body, or for removing the needle assembly. The sheath opening can be rotated to obstruct the syringe body opening, for retaining the needle assembly in the syringe body.

Abstract: Two embodiments of a normally closed asymmetric tapered fitting valve are disclosed. Each tapered fitting valve comprises a single molded incompressible, but supple part and a skeletal support whereby the tapered fitting valve is opened by insertion into a correspondingly sized female tapered fitting. Use of the valve specifically targets use with medical luer fittings, but is not limited thereto. The preferred embodiment of an actuator portion of the valve has dimensions which are identical those of a female tapered fitting into which the valve is inserted to open. The valve opens by compressing a slit which is disposed along a major axis of the asymmetric valve as it is advanced through a tapered circular duct. The valve has back-to-back closure features which maintain the valve closed when not inserted. A stand-alone male adapter comprising the tapered fitting valve is disclosed.

Abstract: Apparatus and methods for delivering medicament. The apparatus may include a fitting for a fluid dispenser. The fitting may include a detent that is configured to limit insertion of the dispenser into the fitting by contacting a terminal surface of the dispenser; and a seal for sealing against the surface. The apparatus may include an insert for the fitting. The insert may include a gasket to seal against the terminal surface of the dispenser; a proximal rim to engage a lateral wall of the dispenser; and a connector fixed to the gasket and the rim. The apparatus may include a coupler to engage a pre-filled dispenser; and a body defining a passageway that is configured to be placed in fluid communication with the dispenser. The apparatus may include a dispenser that includes a detent and a seal. The detent may limit insertion of the dispenser into a fitting.

Abstract: Various embodiments of a pelvic treatment system and method are provided. The present invention can include one or more drug eluting darts or barbs that are lodged into the wall and will elute the drug over a desired time period (weeks, months for example) to treat OAB, BPH, tissue weaknesses, or other disorders or diseases.

Abstract: A connector for use with a syringe or extension tubing, such as an enteral feeding syringe or tubing, is provided. The connector has features to effectively secure a syringe or extension tubing with the connector without contamination from a user.

Abstract: Described is a microneedle arrangement (1) comprising a body (2) having a proximal portion and a distal portion, a plurality of recesses (7) formed in proximal portion of the body (2), a microneedle array (5) disposed on the distal portion, and a connection needle (8) in fluid communication with the microneedle array (5) and extending proximally from the microneedle array (5). Further described is an adapter (9) comprising a coupling adapted to engage a medicament delivery device, an opening (14) adapted to receive the body (2), and a plurality of resilient latches (12) adapted to releasably engage the plurality of recesses (7) of the microneedle arrangement (1) when the body (2) is inserted into the opening (14).

Abstract: A cartridge (100) for containing and dispensing a medicament, the cartridge (100) including a cartridge body (104) having an interior cavity (10B) therein, a stopper (112) movably disposed within the interior cavity (108), and a septum (116, 148) disposed at an opposite end of the interior cavity (108) from the stopper (112), for containing the medicament within the Interior cavity (108). The cartridge (100) also Includes a connection thread (120) integrally formed as a unitary construction of the cartridge body (104), the thread (120) being disposed at a first end of the cartridge body (104) for connecting a pen needle directly to the cartridge body (104) to pierce the septum (116, 148) and provide communication between the medicament and a patient end of the pen needle.

Abstract: A medical device connectable to a frontal attachment, the medical device having a forwardly projecting fluid outlet member and a forwardly projecting protective guard extending beyond the outlet member to protect the outlet member from pathogenic contamination by contact prior to connection to the frontal attachment.

Abstract: A syringe assembly includes a tubular barrel having an open proximal end, a distal end, and an internal a fluid retaining chamber. A plunger is slidingly received in the chamber and is configured to draw fluid into and expel fluid from the chamber. A hollow projection extends from the distal end of the barrel and a cannula extends from the hollow projection. The cannula may have a spiked tip, a transverse orifice, and longitudinally disposed bi-lateral fluid flow channels. The cannula is adapted to penetrate the seal of a medical access point, such as a medicine vial, IV port, or catheter port. A receiving collar including one or more male threads surrounds the hollow projection and the cannula and is adapted to releasably engage a needle hub. The needle hub has an internal cavity configured to matingly receive and cover the cannula.

Abstract: The present invention relates to a delivery member attachment device (10) comprising a neck (12) having an inner space intended to accommodate a connection part of a medicament container, which neck (12) is intended to receive a delivery member (30) for creating a passage between the medicament container via the connection part and through the delivery member, that said neck (12) is arranged with threads (14) arranged to engage with corresponding threads (34) of an attachment part (32 of said delivery member (30), and wherein said neck (12) further is arranged with a number of slits (16) providing a number of tongues (18) between said slits, and wherein said tongues (18) are arranged to flex inwards, when a delivery member (30) is to be attached, to allow an axial pushing of said attachment part (32) onto, and in engagement with, said neck (12).

Abstract: An autoinjector includes front and rear separable housing parts 10, 12. These are connected by a rotary coupling action such as by bayonet coupling and the relative rotation action turns a needle shield 20 from a locked position in which it is both locked against longitudinal movement and acts as a shutter obscuring the contents of the syringe to an open position where the contents of the syringe are visible and the shield portion is freed for longitudinal movement. Connecting and securing the rear portion 12 on the front portion 11 therefore unlocks the needle shield 20 for operation. On completion of an injection, uncoupling of the front and rear portions returns the needle shield 20 to its locked position so the front portion may be disposed of safely.

Abstract: An automatic injection apparatus including a delay mechanism for properly delivering medication prior to the needled syringe of the apparatus being retracted. In one form, the delay mechanism includes a shuttle (170) for the syringe, a follower (250), a locking member, a damping compound between the follower and a supporting surface (308) to dampen rotation of the follower relative to the shuttle, and a dual functioning biasing member (290) acting between the shuttle and the follower. When the locking member moves to a release position during an injection, the dual functioning biasing member first provides a torsional force to force the follower to rotate relative to the shuttle from a latching position to an unlatching position, and then the dual functioning biasing member provides an axial force to force the shuttle axially relative to the follower to move the shuttle for retracting the syringe needle into the housing of the apparatus after injection.

Abstract: A pen needle hub and cover for a pen needle assembly that provides tactile and/or audible indicia of proper attachment between the hub of the pen needle and the pen is provided. Such indicia substantially prevent under- and over-torquing of the pen needle. The tactile indicia may include a user sensing a wave of a torque of peak value followed by a torque of lesser value.

Abstract: An injection needle assembly includes a needle having a needle point to puncture skin, a needle hub including a first member which holds the needle, and a second member in which a discharge part of a syringe is to be fitted, and an elastic member disposed inside the second member to make liquid-tight close contact with the inner surface of the second member, with the elastic member having an insertion hole in which the needle tube is inserted.

Abstract: A dosing assembly (204) and/or a container (202) comprising fastening means (206,208) for fastening the container to the dosing assembly, the fastening means of the dosing assembly and/or the container defining an asymmetrical pattern in a plane transverse to an axial direction of the dosing assembly and/or a container.

Abstract: A needle mounting system and methods for mounting a needle assembly on a needle mount are disclosed. The needle mounting system includes a needle hub having protrusions extending radially inward. A needle mount has a plurality of slots to receive the protrusions. The slots have a first portion that defines a passageway substantially parallel to a longitudinal axis of the needle mount and a second portion substantially perpendicular to the axis. The needle hub and mount provide a method wherein a needle assembly may be mounted on an injection device without completely rotating the needle hub relative to the needle mount.

Abstract: A dispenser device comprising a pistol housing, a needle direction control mechanism, a boost mechanism, a quantification control mechanism, and a combination of the pistol housing, the needle direction control mechanism, the boost mechanism, and a syringe positioning mechanism or a holding ring embodies the present invention with features and advantages shown as follows, (1) Uniform injection of agents synchronously mixed by not less than two contents; (2) Mixed agents not exposed in air; (3) Uniform injection, high air tightness, injection direction controlled by easy turning, smooth and convenient operation, high powerful operation via shifts of a push rod driven by a pressed trigger, promoted yield rate, assembly easily constructed, reduced manufacture cost, and convenient maintenance.

Abstract: The application relates to a needle protection assembly (1) comprising a support (2), a needle shield (8), urging means (10) located between said support (2) and said needle shield (8), tending to displace said needle shield (8) distally over said needle (3), wherein the assembly comprises one abutment (5) provided on said support (2), receiving a locking element (10a), a part of said urging means being laterally movable with respect to said support (2) and forming part of said locking element (10a).

Abstract: A pen needle assembly is provided herein for use with a medical injector containing an injector body and a reservoir sealed by a septum encased in the injector body. The pen needle assembly includes a hub and a needle fixed to the hub. The hub is formed to be telescopingly mounted onto a distal end of the injector body using a track that accommodates a guide key. When mounting the hub of the pen needle assembly onto the injector body, a first portion of the track is configured to receive the guide key and to guide the guide key in a straight line across sufficient distance to permit a proximal end of the needle to fully pierce through the septum, without rotation of the needle. A second portion of the track is configured to permit the pen needle assembly to be turned with the proximal end of the needle being located proximally of the septum.

Abstract: A needle mounting system and methods for mounting a needle assembly on a needle mount are disclosed. The needle mounting system includes a needle hub having protrusions extending radially inward. A needle mount has a plurality of slots to receive the protrusions. The slots have a first portion that defines a passageway substantially parallel to a longitudinal axis of the needle mount and a second portion substantially perpendicular to the axis. The needle hub and mount provide a method wherein a needle assembly may be mounted on an injection device without completely rotating the needle hub relative to the needle mount.

Abstract: Syringe having a snap-fit mechanism for attaching a needle hub to a syringe barrel in a snap-fit relationship and packaged medical device comprising a syringe with a snap-fit mechanism and a needle hub are provided. An exemplary syringe includes a barrel with a collar and a rotatable arm which allows connection of a needle hub to the barrel in a snap-fit relationship. Additional features of the collar and rotatable arm may also permit disconnection of the needle hub from the barrel without the use of relative rotation of the needle hub and barrel. In a specific configuration, the syringe utilizes a torsional snap-fit element to connect the needle hub to the barrel in a snap-fit rotation. In a more specific configuration, the syringe utilizes a collar with differing interior surfaces which permit snap-fit assembly and disassembly of the needle and the barrel.

Abstract: A needle mounting system and methods for mounting a needle assembly on a needle mount are disclosed. The needle mounting system includes a needle hub having protrusions extending radially inward. A needle mount has a plurality of slots to receive the protrusions. The slots have a first portion that defines a passageway substantially parallel to a longitudinal axis of the needle mount and a second portion substantially perpendicular to the axis. The needle hub and mount provide a method wherein a needle assembly may be mounted on an injection device without completely rotating the needle hub relative to the needle mount.

Abstract: An injection device for injecting selectable amounts of a substance includes an activating mechanism including an axially moveable operating button which can rotated in a resting position only, a tubular drive element non-rotatably connected to the operating button, an axially fixed and non-rotatable guiding element, and an axially moveable driven member held non-rotatably in the device. A rotational grid is operationally between rotatable and non-rotatable components of the injection device such that the operating button can be moved two rotational directions when in the resting position whereby a selected amount of the substance to be injected can be selectively varied. For example, a dosage inadvertently selected too large by rotating the operating button too far in one direction can, in accordance with the present invention, be reduced by rotating the operating button in the opposite direction.

Abstract: A needle mounting system and methods for mounting a needle assembly on a needle mount are disclosed. The needle mounting system includes a needle hub having protrusions extending radially inward. A needle mount has a plurality of slots to receive the protrusions. The slots have a first portion that defines a passageway substantially parallel to a longitudinal axis of the needle mount and a second portion substantially perpendicular to the axis. The needle hub and mount provide a method wherein a needle assembly may be mounted on an injection device without completely rotating the needle hub relative to the needle mount.

Abstract: The present invention provides a detectable heavy duty needle cannula (12) for use in hypodermic syringes and the like. Needle cannula (12) comprises a magnetizable or magnetized stainless steel alloy, which enables needle cannula (12) to be detectable in metal detectors that are commonly used in the meat processing industry to detect broken needle cannulas in the flesh of slaughtered animals. Needle cannula (12) further comprises a sidewall (17) that is thicker than the sidewalls of prior art needle cannulas. The thicker sidewall imparts to needle cannula (12) greater resistance to breakage during the process of injecting animal health products into an animal and greater detectability in a metal detector.

Abstract: A device for connecting an injection needle to an injection apparatus, wherein the device provides a plurality of possible points of contact in at least two planes, and wherein the points of contact have associated spring forces for acting generally perpendicularly on the injection apparatus.

Abstract: An automatically retractable safety syringe includes a needle assembly consisting of a cannula, 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 hypodermic syringe with a selectively retractable includes an barrel having an proximal end and a distal end that defines a receiver with a shoulder. The barrel has a hollow bore therethrough and the receiver includes a plurality of inwardly projecting cams distal to the shoulder. There is an elongate plunger with a proximal end and a distal end sized to fit slidably within the bore of the barrel to define a chamber. There is a hub with a flange and a stem that has a passageway therethrough extending distally into the receiver. The stem has distal recesses disposed to engage the projecting cams so that the hub is retained with the distal end of the stem in the receiver. The syringe includes a needle mounted in the passageway in the hub with the distal point projecting distally and the fluid path communicates with the chamber. There is a clip about the elongate plunger initially allowing movement of the plunger for drawing and expelling fluid.

Abstract: A needle holder positioning structure for a safety syringe includes a syringe with a neck portion having a top end forming a positioning projecting ring, an inner edge of a lower end of the neck portion upwardly and integrally formed with a forked elastic sleeve, with a terminus inwardly forming hook members, a bottom end of a needle holder for receiving a needle being inwardly provided with a flared hole having a distal end forming an enlarged opening, the bottom end of the needle holder being outwardly provided with a guide face, and an outer side formed with depressions corresponding to the hook members.

Abstract: A device for covering and protecting the hollow needle of a syringe after the syringe is used to inject a medicament into a patient includes a cylindrical adapter formed with a coupling. A syringe body formed with a medicament chamber is attached to the coupling. The hollow needle is also attached to the coupling in fluid communication with the medicament chamber. The adapter is formed with a plug that extends from the adapter. The adapter is disposed within a cylindrical barrel piece to allow axial movement between the adapter and barrel piece. A slot is formed in the barrel piece for engagement with the adapter plug. The specially designed slot regulates the distance the needle tip extends from the nose of the barrel piece during a sequence of steps that include filling the syringe with fluid medicament from a medicament vial and then injecting a patient with the medicament.

Abstract: A syringe in which one or more injectable materials are filled, comprises a cylinder or barrel in which a front partition stopper, which can be fixed or movable depending on the embodiment, and one or more intermediate partition stoppers are slidably disposed. In the simplest arrangement, a single intermediate partition stopper is disposed between the front partition stopper and a rear piston, to define first and second chambers within the cylinder in which first and second injectable materials can be respectively filled. An outer periphery of the intermediate partition stopper is provided with a plurality of circular lips between which at least one peripheral groove is defined. One of the first and second chambers is communicated with peripheral groove or grooves of the intermediate partition stopper by small passages to allow the first medicine, which is in liquid form, to enter and fill the groove or grooves and exclude air and bacteria therefrom.

Abstract: A coupling system for transferring fluids from a medicament-containing cartridge to an injection site comprises a fluid flow channel, a blunt cannula defining the distal end of the fluid flow channel, a needle cannula defining the proximal end of the fluid flow channel, and means for fixedly connecting the needle cannula to the blunt cannula.

Abstract: A quick release needle holder, comprises a tubular barrel having a needle receiving socket on one end, the needle receiving socket having a segmented wall defining a plurality of annular jaws having internal threads, a device for normally biasing the jaws into an inner position for threadably receiving a needle hub, and a device having finger tabs slideably mounted on the holder for releaseably biasing the jaws to a needle hub releasing position.

Abstract: A quick release needle holder, comprises a tubular barrel having a needle hub receiving socket and a needle engaging plug on one end, the needle receiving socket having a segmented wall defining a plurality of annular jaws having internal thread segments, the jaws normally biased into an inner position for threadably receiving a needle hub, a cam device slideably mounted on the socket for releaseably biasing the jaws to a needle hub releasing position, and an ejector for engaging the needle hub and ejecting the needle from the plug.

Abstract: A fastening mechanism for a needle system with the liquid system being a cartridge ampoule (4) and with a needle holder (3). The needle holder (3) is snapped onto the cartridge ampoule (4) or a cartridge ampoule holder containing the cartridge ampoule (4) by means of a snap-in closure means. The fastening mechanism of the invention allows sanitary application of injected medicines.

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 thin blade shaped tool for the one-handed removal of a needle from an end of a syringe. The tool has an aperture in the center thereof for slideably mounting the tool on an end portion of the syringe, adjacent the needle, and sides extending outwardly from the syringe for a one-handed removal of said needle with a pair of fingers of a hand which holds the syringe. The sides have spaced apart ends and concave center portions for resting the syringe on a patient or IV line during an alignment of the needle with an injection site.

Abstract: A coupling system for transferring fluids from a medicament-containing cartridge to an injection site comprises a fluid flow channel, a blunt cannula defining the distal end of the fluid flow channel, a needle cannula defining the proximal end of the fluid flow channel, and means for fixedly connecting the needle cannula to the blunt cannula.

Abstract: The sight of a large I.V. needle makes one shiver with fright due to one's association of an I.V. needle with pain. An apparatus and method of anesthetizing the intended site for I.V. needle insertion is provided to reduce or eliminate the pain. In addition, apparatus and method may be used for diagnostic testing purposes to reduce the amount of pain associated with this procedure. The apparatus (10) comprises a storage chamber (12) containing an anesthetizing agent (22) and coupled to a seat member (14). The seat member (14) further holds a needle (16) in place and pierces the storage chamber (12). Alternate embodiments of the apparatus (10) include a seat member (46, 56) which allows the needle (52, 68) to penetrate the storage chamber (40, 62) just prior to use. The apparatus pierces the skin, injects the anesthetizing agent and induces a skin wheal at the intended I.V. site.

Abstract: An improved syringe apparatus for use with interchangeable, disposable medicinal ampoules is provided with an advantageous mechanism for facilitated, one-handed operation in the ejection of a spent ampoule. The improved construction also includes a needle ejector projection for one-handed ejection of the used, disposable needle assembly. An improved cap apparatus for covering the needle assembly is also provided.

Abstract: A coupling system for transferring fluids from a medicament-containing cartridge to an injection site comprises a fluid flow channel, a blunt cannula defining the distal end of the fluid flow channel, a needle cannula defining the proximal end of the fluid flow channel, and means for fixedly connecting the needle cannula to the blunt cannula.

Abstract: The equipment consists, on the one hand, of a metallic adaptor (2) having an upstream end (10) which can be connected to the syringe and a downstream end (9) which can be connected to a disposable cannula (1), the said cannula (1) defining at least two channels (5, 6) for distribution of fluid, and the said adaptor (2) comprising a corresponding number of supply channels (18, 19) which can be brought into correspon-dence, for communication of fluid, with the said distri-bution channels (5, 6).

Abstract: A hypodermic syringe has a syringe barrel with a distal end and a passage therethrough communicating with a fluid-receiving chamber in the syringe barrel. A barrier extends across the passage to isolate the fluid in the chamber. A needle cannula is mounted to a needle hub slidingly engaged at the distal end of the syringe barrel. The needle cannula includes a proximally facing point for piercing the barrier in the passage to the chamber of the syringe barrel. A needle shield is mounted to the distal end of the syringe barrel, and cam means are provided for cam-guided rotational movement between the needle shield and the syringe barrel. The cam shape causes the needle shield and the needle cannula to move proximally for initially piercing the barrier and then to move distally to enable separation of the needle shield.

Abstract: A quick release needle holder, comprises a tubular barrel having a needle receiving socket on one end, the needle receiving socket having a segmented wall defining a plurality of annular jaws having internal threads, a device for normally biasing the jaws into an inner position for threadably receiving a needle hub, and a device having finger tabs slideably mounted on the holder for releasably biasing the jaws to a needle hub releasing position.