Abstract: A holder for holding a hypodermic syringe sheath includes an operative portion having an upwardly facing surface and a downwardly facing surface and a hole with an upper end in open communication with the upwardly facing surface and a lower end in open communication with the downwardly facing surface. The hole has a lateral size to receive therein a hypodermic syringe sheath of a predetermined size and to hold the sheath in a releasable sliding fit engagement. A method is provided for withdrawing a syringe from press fit engagement with its sheath while leaving the sheath assembled with the holder.

Abstract: A safety syringe having a protective barrel which is movable between a retracted position wherein the needle is exposed and a locked extended position wherein the needle is protected. A collar is attached to the distal end of the sleeve to selectively engage a key on the shield in the retracted and extended positions. The locking mechanism preferably includes a series of ramps and slots which engage portions of the shield to retain the shield in the retracted and extended positions. The shield slides longitudinally between the retracted and extended positions and may be rotated about the barrel of the syringe to irreversibly lock the shield in the extended position.

Abstract: A medical device for holding caps for capping hypodermic syringe needles includes an elongate, squeezeable handle, elongate first and second cap-holding jaws, the jaws being mounted to the handle so as to cause the jaws to be in a closed condition when the handle is not squeezed and so as to cause the jaws to open when the handle is squeezed. The jaws, which are formed of elongate halves of a tube, have an inner opening sized to grip a needle cap when the jaws are in the closed condition and have an axial length which is substantially greater than the cross sectional dimension of the inner opening when the jaws are closed. Distal edges of the jaws are made relatively thin so as to enable the jaws to pick up a needle cap from a surface when the handle is squeezed to open the jaws and squeezing pressure on the handle is then released. The handle includes a spring for urging the jaws toward the closed position when the handle is not squeezed.

Abstract: An automatic needle-retracting syringe (2,80), intended for single use applications, includes a barrel (4), having a needle end (6), a plunger end (8) and a bore (10), and a plunger (12) at the plunger end. A needle gasket (16) is slidably mounted within the bore to define a near region (18) and a far region (20). A hollow needle (28) is mounted to the needle gasket. A path (26) through the needle gasket connects the near region to the needle. A coil spring (40,82) biases the needle gasket from an extended position to a retracted position, the needle fully housed within the barrel at the latter. The extended position is maintained by a retaining capsule (44) wedged between a narrowed bore portion (42) and the needle gasket.

Abstract: This invention relates to a disposable syringe for once-only use. The syringe includes a hollow cylinder which carries a needle at one end and houses a plunger connected to one end of a shaft, the other end of which is provided with a manually operable shaped head. the diameter of this head is a maximum in proximity to that portion adjacent to the shaft and reduces gradually towards the free end of the head. The shaft length is such that when the plunger has been pushed to the bottom of the cylinder, the maximum diameter portion of the head is housed within the cavity of the cylinder so that the shaft head can no longer be gripped by the fingers in order to move the shaft backwards and reuse the syringe.

Abstract: This pad, such as a vaginal pad, comprises a body in elastic foam and a finger gripping device for inserting or drawing out the pad; the gripping device is a recess formed in the pad body.

Abstract: Apparatus for storing prior to and after use, a hypodermic syringe which includes a hypodermic needle such that the chance of the spread of infectious disease is minimized.

Abstract: A safety syringe having both apparatus for shielding the needle and apparatus for removing the needle after it is used. The apparatus for removing the needle is an elongated member that includes means for grasping the needle and removing it from the syringe body. An elongated cavity is disposed in the extension arm extending from the piston member of the syringe for receiving and storing the apparatus for removing the needle. The apparatus for shielding the needle is a cylindrical member that is attached over the syringe body and movable to and from an extended position over the needle. The safety syringe prevents inadvertent exposure of the needle prior to, during and after use of the syringe.

Abstract: A syringe comprising means making it possible to make the plunger integral with the end of the plunger stem during the first filling, and to cause the disconnection between these element during a refilling attempt.

Abstract: An IV, vacutainer, butterfly, or syringe needle cover and dispenser for a plurality of such needle covers that provides individual release of the covers. The dispenser is adapted for attachment to a wall, other surface or a tray. The dispenser is provided with a hinged door which partially covers the bottom needle cover while it allows for the insertion of a needle into that needle cover. The needle cover is provided with gripping surfaces that secure the cover to a needle after needle insertion. The hinged door swings out of the way to allow for the withdrawal from the dispenser of the needle cover attached to a needle. The device insures safe disposal of used needles.

Abstract: A needle cap holder of a syringe. It is of compressible material, such as rubber, having a central portion tapered inwardly from the top and bottom. It has a central, vertical cylindrical opening for receiving a needle cap of the syringe. It has a concave bottom portion.

Abstract: A single-use syringe has a piston assembly having a plunger (1) with a divergently tapered end portion (4). A resiliently deformable piston (2), with a blind aperture (7) correspondingly tapered so that part of the plunger end portion (4) may fit within, also has a tapered skirt portion (6) adapted to surround a further part of the end portion (4). A locking ring (3) having a tapered aperture to surround said skirt portion is provided to hold the skirt (6) against the plunger end portion (4). When the plunger (1) is depressed within a barrel, the locking ring (3) is delayed by the wall of the barrel while the skirt (6) is pushed inwardly. Once the skirt (6) is unrestrained by the locking ring (3), outward movement of the plunger (1) will cause its end portion (4) to be pulled free from the piston (2). The piston (2) is thus non-retractible to prevent a second drawing in of liquid.

Abstract: A method and apparatus are disclosed for destroying syringe needles. The apparatus has an incinerator into which a syringe needle may be inserted, crimped by a crimper 30, burned by passing an electric current through the needle between the needle tip and a sealing crimp formed by the crimper 30, and the burned needle severed by a cutter 36.

Abstract: A needle receptacle that includes a sheath with a cradle portion and attached barrel end and may include top and end covers as a syringe and needle housing. The cradle portion is open along its top portion and includes parallel spaced apart finger protective flanges at opposite sides of a finger grasping portion formed therearound. The barrel end is tapered into a needle receiving portion and includes a flared connection between the cradle and the barrel end to serve as a guide for needles inserted into the barrel, which barrel also includes a detent extending radially therein for preventing needle turning.

Abstract: A syringe needle disposer includes a setting section for setting waste syringe needles and a magnetic field generating section for providing a high frequency alternating field to the setting section. When the high frequency alternating field is activated, a magnetic path of the magnetic flux passing through the waste syringe needle set in the setting section is formed, thereby induction-heating the syringe needle to soften the needle and to round its tip and to close an axial hole of the syringe needle. The sharp edge of the softened syringe needle may be blunted by contacting a pressure plate under pressure.

Abstract: Disposable hypodermic syringe comprising a needle (1) which can be retracted and held inside the syringe which moreover comprises a syringe barrel (4, 5) with liquid chamber designed with a piston (14) with a piston rod (7). Opposite the piston (14) the liquid chamber has an entirely or partially yielding end wall (6) with an opening, and the needle (1) is in its end area opposite its point provided with a head (3) which is subjected to the pressure of a spring in the direction toward the yielding wall (6). The piston (14) has a projection with locking means (10) designed to interlock with the opening in the yielding wall (6) when the piston bottoms in that the needle simultaneously snaps into a cavity (9) in the piston through the opening in the yielding wall (6); further usage of the syringe is hereby prevented.

Abstract: A hypodermic syringe needle detector consisting of a normally open circuit adapted to be closed when a hypodermic syringe needle penetrates the device and simultaneously makes electrical contact between two or more elctrically conductive surfaces. Closing the circuit energizes a sensory alarm such as an audio signal or light.

Abstract: A non-rechargeable, disposable hypodermic syringe for use with a needle includes a barrel, a retaining ring, and a plunger. The plunger has at least one annular notch formed therein. The barrel has at least one internal inwardly-flared tab formed therein which is oriented towards the forward end of the barrel. The tab is inwardly-biased, so that during rearward movement of the plunger, after delivery of the substance therein, the tab is received in the notch for annularly engaging in the notch, preventing the plunger's continued rearward movement and preventing the recharging of the syringe. In this manner, the syringe cannot be reused. The retaining ring is circumferentially disposed in the barrel between the plunger and the barrel. Cooperating ratchet teeth between the plunger and the ring coordinate the forward movement of the plunger with the ring, permitting the initial filling and aspiration of the syringe.

Abstract: A safety syringe including a needle shield which is movable between a retracted position wherein protected. The needle shield is also rotatable in either direction from the releasable extended position to a locked and extended position. A collar having a plurality of protrusions and locking slots thereon is mounted on the distal end of the syringe to interact with a plurality of elongate keys which extend inwardly from the interior surface of the needle shield.

Abstract: A holder for a syringe to protect the user after administering an injection. The holder has a housing with an open end to receive the syringe barrel so that the needle projects beyond the other end of the housing for use. A spring retracts the needle after use, and a clip can be used to secure the syringe in its retracted position. The holder housing has means for releasably securing the syringe in a second position that provides for use of the syringe while in the holder.

Abstract: An elongate cylindrical body portion and a spoon-shaped shield member are injection molded as a single unitary piece of transparent polypropylene. The cylindrical body portion has a longitudinally extending slot so that it can be readily snapped around the barrel of a syringe. The spoon-shaped member extends from the forward end of the body portion. This member can deflect transversely from an un-deflected non-use configuration to a slightly deflected in-use configuration to permit the needle to extend therebeyond when the guard is installed with the body portion in a retracted position relative to the barrel of the syringe. When the body portion of the guard is manually slid to an extended position relative to the syringe barrel, the spoon-shaped member returns to its un-deflected configuration and the tip of the needle is engaged by a plurality of ribs formed on an inner wall of the spoon-shaped member. The tip of the needle is thus concealed and accidental puncture thereby is avoided.

Abstract: A needle ejector apparatus to be used for removing a needle from a blood sample vacuum tube container, the apparatus being structurally adapted to receive a vacuum tube container and attached needle therein whereupon the downward depression of a push rod on the apparatus causes an engaging means to grasp a rubber cap on the needle located within the interior of the vacuum tube container. Further depression of the push rod causes rotation of a head structure and attached engaging means thereby enabling separation and ejection of the needle from the vacuum tube container after use without the necessity of the needle being touched by medical personnel. Danger of contamination by inadvertent puncture when removing the needle from the vacuum tube container is thereby eliminated.

Abstract: The apparatus comprises at least a pair of electrodes supplied by an AC power supply, in contact therewith there are arranged, through suitable guide members, the tip and a middle portion of the syringe needle, the power supply to the electrodes being controlled by a switch which, as it is closed, provides an electric current effective to blunt and melt the needle which can not be reused.

Abstract: A tool for gripping and manipulating an article, the tool being particularly useful in removing and replacing a cap on a needle of a hypodermic syringe. The tool is held and manipulable in one hand and includes a clamp element, an actuator movable between locked and release positions and a lock mechanism for locking the actuator in its locked position. The lock mechanism is easily depressed by the thumb to release the actuator and close the clamp element on the cap.

Abstract: A portable hand tool, for holding an elongate needle cap so that a syringe needle can safely be inserted into the cap, has a lever structure comprising a pair of juxtaposed, mating, pivotally connected levers. The levers at their front ends have marginal edges defining a cap receiving opening parallel to the axis of pivot. The structure provides a wall functioning as a base for the opening and a spring normally biases the front ends of the levers to a closed cap gripping position. The levers are operated by squeezing their rear ends to achieve a cap receiving and releasing position.

Abstract: The disclosure is directed to an apparatus for preventing needle pricks and for safely disposing used intravenous needles. The apparatus comprises a longitudinal body, having first and second ends, an entry and closure mechanism on the first end and an aperture on the second end of the longitudinal body, and a pulling structure which passes through the interior and both ends of the longitudinal body. The pulling structure is attachable to an intravenous needle. The other end of the pulling structure may be attached to a syringe or blood-drawing device. A user pulls on the pulling structure to draw the intravenous needle into the longitudinal body after use. The entry and closure mechanism prevents the needle from exiting the longitudinal body after it becomes disposed within the longitudinal body. The longitudinal body, containing the needle within, can then be disposed of.

Abstract: A disposable needle system employing chemical disinfecting mechanism is disclosed. Both ends 13,14 of the needle are enclosed in individual spring biased, retractable sleeves 32,52 telescopically received within respective colinear tubular housings that support the needle structure. In use, sleeves 32,52 are retracted to expose needle ends 13,14 for respective insertion into the vein of a patient and for collecting the blood in a tube 71 or syringe 90. After use, the sleeves are returned to original position to again cover the needle ends and protect the user and any subsequent handler from exposure to accidental needle punctures. An additional precaution involves a disinfectant solution being dispersed into the tubular housings via passageway 66 and vial 75. Vial 75 is retained in the tubular housing by the tapered enlarged nozzle 79 being locked in passageway 66 to give a visual indication that the needle system has been used to thereby prevent inadvertent reuse.

Abstract: A device for removing and replacing a protective cover on a needle of a hypodermic syringe. The device includes a base member having a generally planar bottom surface together with means for securing the bottom surface to an external flat surface. A tubular member extends from the base member at a predetermined angle relative to the planar bottom surface. The tubular member includes an open end for receiving axially a needle with a protective cover and an inner surface defining an elongated cylindrical cavity having an inner diameter sligthly larger than the maximum diameter of the protective cover to be received therein. Tab means extending inwardly from the inner surface of the tubular member are provided to operably engage a lip on the protective cover when the cover is within the cavity. The lip is operable to engage at the tab means when the protective cover is urged thereagainst whereby the protective cover remains within the tubular member while needle is removed therefrom.

Abstract: A disposable holder (10) for hypodermic needles (12) and sheaths (14) is disclosed as having a base (16), walls (26, 36, 38, 48) extending upwardly from the base (16), and a roof (58) extending between the walls spaced apart from and above the base (16). A storage location (60) is defined between the walls (26, 36, 38, 48), and base (16), and the roof (58). Defined in the roof (58) is a plurality of disposal orifices (62) communicating with the storage location (60) and allowing passage via the disposal orifices (62) into the storage location (60) of the hypodermic needles (12) and sheaths (14) for safe discarding in the holder (10) after use. A plurality of retaining orifices (64) for engaging the needles (12) and sheaths (14) in an interim storage position are also defined in the roof (58) for safe securement of the needles (12) and sheaths ( 14) for stability and ease of access between uses.

Abstract: A medical needle guard device is disclosed characterized by use of a pair of telescoping tubular sleeves mountable upon the hub of conventional medical needles by plural clip inserts positionable within one of the tubular sleeves. The plural clips may be specifically formed in differing configurations and positioned at differing axial positions along the length of one of the tubular sleeves to permit the medical needle guard to be retrofitted onto differing medical needle hubs.

Abstract: The present invention comprises a sheath for protecting a dental syringe and for preventing residual cross-contamination between successive patients. Means are provided for preventing contaminants from being drawn back into the syringe after application has ceased.