Abstract: A catheter adapter of the type wherein compression applied to the catheter provides a retention force thereon and wherein notches are provided on the adapter for wrapping the catheter around the adapter in a manner such that a force applied to the catheter does not constitute a catheter separating force.

Abstract: A generally cylindrical structure of rigid material is configured such that the device is capable of at least partially circumscribing at least a portion of a syringe barrel. Near one end of the cylindrical structure, the apparatus is provided with a structure for secure attachment to the base of a hypodermic needle.The structure for secure attachment to the base of a hypodermic needle may vary depending on the specific structure of the apparatus and the type of needle used. In one embodiment of the device, the means of attachment comprises "Luer" threads on the interior surface of the cylindrical structure. Those threads, in turn, engage the base of a typical needle and the device provides twisting engagement with the needle base.Using the device removal of the needle from the syringe barrel is simple and safe. The structure is simply pressed in a forward direction (i.e.

Abstract: A blood specimen collecting system utilizes a disposable needle assembly and standard blood collection and receiving tubes of the type sealed by a pierceable septum. The system includes a hollow cylindrical support adapted to receive a blood collection tube through a rear end thereof and support the needle assembly at a front end thereof. A needle support and ejection mechanism includes a pivotable lever assembly having first and second retainer bracket arms designed to cooperatively engage opposing surfaces of a needle assembly base. The lever assembly is pivotally biased to a first position wherein the first retainer bracket arm applies force to the needle assembly base to bias the needle assembly rearwardly into a small aperture of the cylindrical support.

Abstract: The invention described is a procedure whereby a small balloon catheter can be placed in a patient's body, expanded and collapsed as needed and then a second, larger balloon catheter placed over the smaller one. There is also disclosed a balloon catheter system for performing the above-noted procedure.

Abstract: A transfer instrument (50), consisting of a prefilled disposable syringe, comprises a container (51) containing the liquid to be injected, a piston (52), and a piston rod (53) attached to the bottom of a capsule (54) with a tubular tip (58). This tubular tip has an inner surface (62) in the shape of a truncated cone to admit an insert (66) and an outer surface (64) in the shape of a truncated cone with a taper of 6%, capable of receiving a standard cap (59) fitted with a needle (60). A throat (73) is provided at the periphery of the insert (66) to permit the flow of the injection liquid and to obviate the need for a large dead volume.

Abstract: A connector for applying to the exterior of an elongated member of circular cross-section circumferentially uniform radially directed compressive forces by which to effect attachment and fluid-tight sealing thereagainst. The connector comprises an attachment fitting having formed therethrough a bore for slidably receiving the elongated member and a coaxially disposed, radially enlarged compression recess communicating therewith. A flexible annular gripping member resides in the compression recess slidably circling the elongated member. A locking hub disposed at the end of the compression recess remote from the bore has a compression face which extends into compression recess.

Abstract: The sample coupler device is used to connect a sample collector container to a pipe used to transport gases or liquids. The coupler device permits collecting of blood or intravenous fluid sample material without it becoming contaminated. The coupler's most significant feature is the combination of the conical snout on the housing containing the integral feeder tube so that the blood or intravenous fluid may be collected without utilizing any external needles. This is significant when the person to whom this intravenous feeding system is connected has been exposed to Acquired Immune Deficiency Syndrome, hepatitis or any other non-curable or potentially fatal malady.

Abstract: A protected needle coupling for connecting to a conventional IV injection site comprises an elongated tubular housing having a proximal end and a distal end, needle mounting means at the proximal end for mounting a conventional needle in a protected position within the housing, connecting means at the proximal end for connecting to an IV tubing, and clamping means at the distal end for extending over and gripping a standard IV injection site when the needle is inserted into the site.

Abstract: An improved hand syringe has been provided which allows a used needle to be retracted completely into the body of the syringe, and stored there such that the spent needle cannot be used again. This improvement thereby provides safety from accidental infection to persons required to use hand syringes as well as persons required to disposed of these syringes.

Abstract: A flexible spray tip device is provides so that the user may bend and rigidly hold a spray tip at the end of a syringe. Alternately, the spray tip may be rotated around 360.degree., to provide orientation and angulation of the device while simultaneously attached to the syringe.

Abstract: An adapter and retainer for field assembly to the proximal end of a catheter in the form of a plastic clip having a length of flexible tubing mounted thereon into which the end of the catheter is inserted after which two jaws of the clip are locked together to sealingly compress the flexible tubing about the catheter, the catheter also being wrapped one or more times about reel formations provided on the clip and then snapped into retention grooves provided on the clip whereby to absorb any force applied to the catheter which would otherwise tend to separate the catheter from the clip.

Abstract: A blood collection and/or injection device includes a double-ended medical needle including a cannula having opposite pointed ends, a hub fitted over the cannula, a rubber sheath optionally fitted over an end portion of the cannula, a cylindrical holder having an opening defined in one end thereof, the end portion of the cannula which is optionally covered with the rubber sheath being adapted to be inserted into the opening with the hub held in the opening by the cylindrical holder, and an evacuated blood collection tube or syringe adapted to be inserted into the cylindrical holder through an opening defined in the opposite end of the cylindrical holder and pierced by the end portion of the cannula. The hub has spreading teeth, and the cylindrical holder includes a holder casing having chuck teeth spreadable radially outwardly by the spreading teeth of the hub.

Abstract: A hypodermic syringe has a generally cylindrically tubular body extending along an axis and having an axial front end formed with a radially outwardly projecting annular bead, a piston axially displaceable in the body, a plug having a rearwardly directed flange fitting complementarily over the front end of the body at the bead and forwardly blocking the body, and a flat soft seal ring compressed axially between the plug and the front end of the body. The body has a rear end provided with a finger-rest crosspiece and the piston is provided with a plunger projecting axially out the rear end past the crosspiece.

Abstract: A dental syringe and disposable capsule for dispensing a dental material wherein the capsule includes a reservoir portion containing a predetermined amount of material to be dispensed, and which reservoir is connected in communication with a discharge tip. Connected to the end of the tip and projecting therethrough is a needle cannula through which the material is ejected. A displaceable piston, which seals the material within the reservoir portion, is provided to force the material through the cannula when displaced within the reservoir portion. The arrangement is such that the cannula connection within the tip end permits the cannula to be rotatably mounted relative to the tip while maintaining a seal between the tip and the cannula.

Abstract: A unitary adapter is disclosed for placing a catheter in fluid communication with a syringe or other source of liquid medication. The adapter has a catheter connector for releasably securing the proximal end of a catheter extending from a patient's body and a connector releasably engaging the liquid medication source, the connectors being attached to one another and movable between an open position for inserting the catheter end and a closed position for securing the catheter end within the connector.The adapter is designed to prevent accidental opening and the resulting falling out of the catheter when the connectors are in the closed position.

Abstract: A small diameter balloon dilatation catheter having a shaft formed from hypodermic tubing is provided with a detachable luer fitting on its proximal end. The luer fitting may be removed and an extension wire attached to the proximal end of the catheter. A larger diameter catheter then may be advanced over the smaller catheter utilizing the smaller catheter to guide the larger catheter to the stenosis being treated. In another aspect of the invention, a guiding sheath assembly is provided which permits catheter exchanges involving such small diameter catheters having integral guidewires. In one protocol such a catheter may be exchanged for a conventional balloon dilatation catheter with a movable guidewire by removing the dilatation catheter, advancing the sheath over the guidewire, then removing the guidewire and inserting the replacement catheter.

Abstract: A needle assembly includes an elongate cannula having a first end, an opposite end and a sidewall therebetween. The cannula includes a lumen therethrough defining a cannula longitudinal axis. A hub having a proximal end, a distal end and a passageway therethrough defining a longitudinal axis is provided. The passageway includes an enlarged first portion at the distal end, a second portion adjacent to the first portion and a third portion adjacent to the proximal end. The cannula is positioned in the hub so that the opposite end is within the second portion and the first end projects outwardly from the distal end of the hub. The second portion includes a proximally located ledge for establishing the most proximal position of the cannula in the passageway and an inwardly projecting flange, located distally from the ledge, for contacting and holding a cannula with sufficient force to prevent the cannula from falling out of the hub.

Abstract: An injector pre-filled with a radiopharmaceutical liquid, which comprises (1) a syringe containing a radiopharmaceutical liquid with a stopper made of an elastic material fitted at the top opening, (2) a holder having a hole at thee central part fitted on the stopper to keep it firmly at such position, (3) an adaptor having a body portion of which the lower part forms a cap portion, a passage for the radiopharmaceutical liquid penetrating the body portion and a hollow needle portion continuously extending from the passage to the lower direction, detachably fitted on the syringe, and (4) a disposable needle head comprising a needle having a passage for the radiopharmaceutical liquid therein and a cap portion, detachably fitted on the body portion of said adaptor to make a gap at the top part of the cap portion of the needle head, the cap portion of the needle head being at least partly made of an inside observable material.

Abstract: A coupling assembly for connecting a flexible catheter to the hub cone of a sheath for inserting the catheter into a punctured body cavity consists of a housing having two separable housing halves which jointly form a passage for the catheter and have their patient-proximal front end provided with a tip for insertion into the hub cone of the sheath. In the passage, there is arranged shaped sealing formed as a hollow cylinder of an elastic material, provided as a tube tightly surrounding the catheter and having a thickened head portion. The outer diameter of the head portion is adapted to the outer diameter of the tip of the housing, and the tube is inserted into a widened portion of the passage such that the head portion of the tube abuts against the front face of the tip. Such a shaped sealing acts as a closing stopper which prevents that blood can travel rearward between the separating slits of the housing halves and escape to the outside.

Abstract: A needle ejector structure to be used with a syringe and structurally adapted to be removably inserted therein and driven into driving, disengaging relation to a connected hub portion of a needle upon forced travel of the plunger associated with the syringe thereby enabling separation and ejection of the needle from the syringe after use without the necessity of the needle or hub portion thereof being touched by medical personnel. Danger of contamination by inadvertent puncture when removing the needle is thereby eliminated.

Abstract: The quick connect/disconnect tubing adapter is used for capturing a tubing within the adapter in a generally sterile manner. The adapter comprises two mating body portions which have passageways for receiving a tubing end portion. A tubing is received in and fixed in the passageways and is adapted to contract around the tubing end portion when the body portions are pulled away from each other. Additionally, a locking mechanism is provided for releasably locking the body portions together in a pulled apart position with the tubing end portion captured in the tubing.

Abstract: A blood collecting device for use in collecting blood samples. A blood collecting device comprises a tubular holder, needle assembly and tube where the needle assembly is engageably retained to the holder by a latching means. The latching means may be manually disengaged allowing the needle assembly to be ejected affirmatively by a spring loaded ejection means without touching the needle manually.

Abstract: This disclosure is a hub which includes a resilient means designed to engage the shank of a needle, cannula or stylet and resist axial movement therebetween while holding same therein. The configuration of the hub allows the axial relationship between the needle, cannula or stylet and the hub to be set and maintained during further assembly operations. Disclosed also is a method for assembling the needle, cannula or stylet to the specifically configured hub.

Abstract: A device for administering powdered substances into deep-seated cavities of an organism includes a sprayer of powdered substances, a conveying line including a drainage pipe and a catheter, a hollow cylindrical body divided by a diametral partition and a cover, and a first sleeve positioned in the diametral partition and a second sleeve positioned in the cover. Both sleeves have openings that are coaxial with the conveying line.

Abstract: A catheter placement device is provided which includes an adapter with an elastomeric grommet having a bore through which a pliable catheter is fed into a blood vessel of a patient. The grommet has a flange engageable with the catheter and effects a relatively low resistance to distal movement of the catheter and relatively high resistance to proximal movement of the catheter. A pair of adapters may be used with one adapter carrying a grommet and the other having a frusto-conical bore receiving an end of the grommet. The adapters are relatively rotatable to cause the grommet to lock the catheter against axial movement relative to the adapters. Retention members may be used to prevent inadvertent separation of the adapters during relative rotation.

Abstract: A universal connector for a fluid flow conduit comprises a tubular connector for attachment at one end to the fluid flow conduit and defining a luer taper tube portion at its other end. A sleeve is carried by and surrounding the tubular connector in relatively rotatable relation thereto. The sleeve defines internal threads for threaded locking connection with another connector. A tubular member having external threads at one end is locked by said external thread in removable threaded locking connection with the internal threads. The tubular member defines at its other end an aperture for sealingly receiving a spike connector.

Abstract: A hypodermic syringe capable of pre-filling aseptically from either end. Both ends of the rimmed syringe barrel are sealed and capped with standard vaccine or syringe vial closures and crimped aluminum seals. Both ends of the pre-filled and sealed syringe maintain assured sterility integrity by guaranteed microbe-proof barriers during the entire shelf life of package or container. The syringe is prepared for use by simply removing protective caps or seals. The needle assembly is packaged separately and placed in position on syringe by a simple action.

Abstract: An assembly for connecting needles and catheters in I.V. applications, chemical analysis, etc., includes a leak proof, sterile, self-sealing septum from which the needle is inserted. When the needle is retracted from the septum, the septum will reseal and thus maintain a leak-proof, sterile seal. The assembly is therefore reuseable, and this represents a considerable cost saving for patients who require continuous therapy such as with diabetics, cancer patients, and the like.The assembly includes a distal end having an outlet bore through which a catheter is inserted. The proximal end of the assembly is connected to an external adaptor to which is attached a needle. The septum is positioned between the distal end and the proximal end to provide a self-sealing seal between the needle and the catheter. This external adaptor with needle may be part of a syringe or shaped to accommodate any standard connector such as a luer lock.

Abstract: A tubular adaptor is adapted to be interposed between an intravenous catheter and a needle carried by a tube holder for housing an evacuated tube for blood-sampling purposes. The adaptor is readily separable from the catheter by means of a tapered-socket fitting, and in this manner, either blood-sampling or intravenous-feeding may be accomplished at the same catheterized situs. The needle and evacuated tube assemblage are isolated from the situs by means of the adaptor and catheter. The flexibility of the catheter tube also serves to isolate the assemblage from the situs whereby adverse effects created by the assemblage during sampling procedures are not impressed upon the situs.