Abstract: A Y-connector With a compression gasket for compressing about a guidewire or catheter when inserted into an inner chamber of a Y-connector and compressed by a rim of a large knurled knob. When the large knurled knob is twisted with an inward force, the rim engages the gasket with inward compression, causing the center portion of the gasket to expand inwardly, thereby frictionally engaging against a guidewire or catheter. The inner expansion of the gasket is substantially equal about the inner circumference of the gasket, thereby providing a seal between the guidewire catheter and bodily fluids, such as blood. A guidewire clamp is included at the end of a side arm extending from the Y-connector body.

Abstract: A needleless injection port and automatic backcheck valve comprises a generally tubular body having a pair of vertically offset ports extending laterally therefrom, and a spool within the bore for controlling communication between the ports. The spool is urged by a spring toward one end of the bore, which is open so that a syringe tip can be inserted to displace the spool from a position in which the ports communicate to a position in which they are isolated and secondary medication can be injected from the syringe.

Abstract: A valve includes a one-piece plastic body, and a plunger assembly inserted into the body from one end. The body includes a central cylindrical portion extending along a first axis, a tubular outlet portion extending along a second axis parallel to and offset from the first, so as to intersect the central portion only over a portion of the length of each, and a tubular inlet extending along a third axis perpendicular to the first axis and above the intersected portion thereof. An uninterruped 360.degree. band forming a seat remains between the outlet and the inlet. The plunger assembly includes a resilient, circumferential lip that engages the seat in the closed position of the valve, and a circumferential recess adjacent the lip, that permits fluid to flow through the valve in the open position.

Abstract: A vented needle with sideport comprising a main body housing having dual input ports at substantially right angles to each other. An integral needle structure having a central aperture therethrough being generally in the same axial alignment as one input port and transversely to the other port. A tubular sleeve around the projecting needle for providing a second fluid flow path externally thereof. The needle preferably has a longitudinal groove therein for increasing the fluid flow along the circumference of the needle. The device is designed so that the needle is longer than the tubular sleeve and, thus, air can be passed therethrough without danger of any air being inputted to the liquid flow of the shorter tubular sleeve liquid flow passageway. A hydrophobic air vent filter preferably is connected to the air input of the device.The method of assembly of this vented needle with side port is also part of this invention.

Abstract: An aspiration assembly having dual co-axial check valves for pumping medical fluids with a hypodermic syringe, the assembly having a main body with two passageways in offset relationship to each other, with the passageways coming together at a large central cavity within the main body, a central support structure mounted within the central cavity of the main body, a pair of flexible resilient valve disks engaged by the central support structure, and a body cap having an outlet passageway therein for complementarily enclosing the central cavity of the main body and for retaining the central support structure and dual valve disk in co-axial relationship.

Abstract: The implantable catheter means comprises a capsula (10) having a pierceable top wall (15). A catheter (11) extending into a cavity (12) of said capsula (10) is fixed thereto by an elastomeric clamping member (30) arranged inside a connecting piece (22) which has an internal thread (23) engaged by an external thread of a pressure member (26). By turning the pressure member (26), the clamping member (30) is deformed to press against the periphery of the catheter to fix it and to seal it relative to the capsula (10). The lateral dimensions of the capsula (10) are not increased by the connecting piece (22). The catheter coupling may be easily tightened and released, and it safely prevents the catheter from being extracted.

Abstract: A self-contained I.V. set for infusing drugs and secondary medications is disclosed. A mini-I.V. container having a filtered air vent and a valved filling port is filled by a disposable syringe. A drip chamber below the mini-I.V. container receives medication through a drip device at the bottom of the container. From the drip chamber, the medication enters a small bore tube equipped with a roller clamp and an infusion needle fitting. A convenient hanger for the device is provided.

Abstract: A normally closed, one-way check valve having a body composed of two cylindrical containers which complement each other, each of said containers having a tubular projection with a liquid opening therethrough, one of said cylindrical chambers provided with a plurality of longitudinally extending ribs therealong for preventing sticking of a valve disc as contained within an assembled valve device, also further including a traverse bar for pressing against a valve disc. The other body component is provided with a pointed triangular support and also a plurality of radially extending ribs for preventing a valve disc from opening so far as to close off the egress port provided with said second element, together with a rubber resilient valve disc which is retained between the pointed triangular support and the traverse bar when the unit is assembled by sonic welding into a permanently assembled device.

Abstract: A tamper-resistant filled syringe protective capping device which comprises a one-piece molded product, comprising a base section having a portion thereof provided with a female luer port, a sterility protector, and two side portions which at their furthest ends are provided with complementary locking structure so that when a filled syringe is inserted into the luer port at the base section of the unit, the two side portions can be folded therearound and locked into position to form a tamper-evident container for maintaining a filled syringe in tamper-proof condition.

Abstract: A small micron filter unit comprising a main body connector unit, a single structure filter element, and an adapter unit for complementary engagement with the connector and for receiving and holding the single filter element. Preferably, the adapter unit is of soft material, such as flexible PVC, which allows the adapter unit to expand and receive a ring with ridge of the single filter element within a recess thereof. The ridge on the external circumference of the filter element ring forms a resilient indent in the flexible PVC material of the adapter. The compressive force exerted by the adapter around the filter ring functions to securely retain it in place and also forms a fluid and air axial seal. After assembly of the adapter unit within the connector body unit, an overall leakproof component filter device is formed.

Abstract: A guard for a right angular winged infusion needle includes a trough like body which receives and protects the needle and a clip portion at one end of the guard extending at right angles to the trough like body snugly grips the wing attachment on the needle to maintain the needle in assembled relationship with the guard.

Abstract: A guard for a right angle winged infusion needle includes an elongated trough-like body which receives and protects the needle and an end socket extension which receives and holds a finger pad bonded to the wing at one end of the needle and disposed in a plane perpendicular to the needle.

Abstract: A vented cone filter for use with intravenous liquids which may contain undesired particles as well as gas such as air therewith. A vented chamber of elongated tubular construction and provided with a pointed input opening at one end thereof receives a complementary mating end cap having an output opening therewith. Mounted within the chamber of the main body and supported by the end cap is a cone filter of plastic framework supporting a hydrophilic filter element therewith. Around the ouside of the chamber body appropriate openings are provided and a hydrophobic membrane encompasses same for allowing blocked gas within the chamber to be vented to the outside. Preferably, a sleeve is molded over the hydrophobic membrane once installed for securement and protection thereof.As well as the structure of the present invention, the method of making of same is also encompassed by this invention.

Abstract: A low pressure back-check valve comprising a valve housing with a fluid inlet and outlet, a valve seat, and a dual disc valve element normally biased into closed position against the valve seat by mechanical support structure within the housing. One of the dual discs is made of pure gum rubber and/or like material, while the other disc is made of semi-rigid plastic material, such as unplasticized Polyvinyl Chloride (PVC). The mechanical support structure includes a pair of pins spaced 180.degree. apart. While these pins constantly hold the dual discs in biased position against the valve seat, because of the compliant construction of the dual discs, the valve can open under a very low pressure, such as 0.02 pounds per square inch.

Abstract: A normally closed, one-way check valve having a body composed of two cylindrical containers which complement each other, each of said containers having a tubular projection with a liquid opening therethrough, one of said cylindrical chambers provided with a plurality of longitudinally extending ribs therealong for preventing sticking of a valve disc as contained within an assembled valve device, also further including a traverse bar for pressing against a valve disc. The other body component is provided with a pointed triangular support and also a plurality of radially extending ribs for preventing a valve disc from opening so far as to close off the egress port provided with said second element, together with a rubber resilient valve disc which is retained between the pointed triangular support and the traverse bar when the unit is assembled by sonic welding into a permanently assembled device.

Abstract: An IV chamber flow controller includes a plug integrally connected to the chamber and a flexible tube extending through the plug. A plunger rod is moved by a skirt which is rotatably mounted on the chamber and pinches off the tube to stop flow from the chamber. The skirt includes a crescent shaped groove for controlling movement of the plunger rod. A flow path from the IV chamber to an IV tube is straight and uninterrupted so that leakage and sterility problems are reduced.

Abstract: A catheter anchoring assembly includes a winged section which is easily anchored to a patient to securely attach the assembly to that patient. The winged section includes a tubular body attachable to a catheter hub and through which the catheter extends. The winged section extends beyond a stem on the catheter hub and is larger than the outer diameter of the catheter tube whereby kinking of that catheter tube is prevented. The tubular body can be tilted with respect to the wing of the winged section.

Abstract: A multiplicity of caps are aseptically stored in a rigid blister package, with each cap being releasably mounted on a retainer. A plurality of retainers are stored in the package. Each cap includes a clamping fin coupled to the cap skirt by a hinge which is releasably connected to that cap skirt by a pair of tear away joints and which is securely connected to the cap top wall by a living hinge which remains intact after the tear away joints are broken to release a cap from a bottle.