Abstract: A safety needle assembly has a needle with a pointed tip and at least one generally planar wing attached via a pivot pin to the needle. The wings are moveable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to reduce the likelihood of inadvertent needle stick.

Abstract: Injection port valves are generally discussed herein and more particularly to port valves that have a valve housing with a nozzle having an inlet opening, a body section, a skirt section, an interior cavity, and a valve seat at an intersection of the first nozzle and the body section in the interior cavity. A piston may be positioned within the interior cavity of the valve housing having a body section having an exterior surface, an upper piston section, a seal surface, and a piston cavity, and wherein the body section includes a wall layer that emits lubricant from within the wall layer to the exterior surface. A nut, which may be a Luer nut, having a flow passage in communication with a discharge nozzle having a discharge lumen may be attached to an end of the skirt section of the valve housing to thereafter connect to an infusion line.

Abstract: Injection port valves are generally discussed herein and more particularly to port valves that have a valve housing with a nozzle having an inlet opening, a body section, a skirt section, an interior cavity, and a valve seat at an intersection of the first nozzle and the body section in the interior cavity. A piston may be positioned within the interior cavity of the valve housing having a body section having an exterior surface, an upper piston section, a seal surface, and a piston cavity, and wherein the body section includes a wall layer that emits lubricant from within the wall layer to the exterior surface. A nut, which may be a Luer nut, having a flow passage in communication with a discharge nozzle having a discharge lumen may be attached to an end of the skirt section of the valve housing to thereafter connect to an infusion line.

Abstract: A safety needle assembly has a needle with a pointed tip and at least one generally planar wing attached via a pivot pin to the needle. The wings are moveable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to reduce the likelihood of inadvertent needle stick.

Abstract: A safety needle assembly has a needle with a pointed tip and at least one generally planar wing attached via a pivot pin to the needle. The wings are moveable between an unguarded position wherein the tip of the needle is exposed to facilitate insertion of the needle and a guarded position wherein access to the tip of the needle is inhibited so as to reduce the likelihood of inadvertent needle stick.

Abstract: A syringe includes a threaded plunger disposed for axial movement within a housing. When it is designed to aspirate a fluid into the syringe barrel, a cam member mounted on the barrel is moved to a free flow position in which it is disengaged from the plunger to allow the plunger to be freely axially movable along the barrel. When it is desired to inject the fluid, such as into an angioplasty balloon, the locking cam is moved to an engaged or locking position, in which it threadably engages the plunger, such that the plunger can only be moved along the barrel in small, controlled increments by rotating the plunger, thereby to enable the operator to achieve the desired accurate control over the fluid pressure in the syringe.

Abstract: In general, the medical infusion device of the present invention includes at least one check valve chamber through which a primary intravenous stream is arranged to pass by way of a primary fluid inlet port and a primary outlet port. Each check valve chamber has at least one physically associated infusion port through which a medicational or nutritional fluid can be injected in any number of possible ways. Each check valve chamber has an interior volume, a check valve opening formed between its interior volume and its associated infusion port, a check valve chamber opening formed through the check valve chamber and axially aligned with the check valve opening, a flexible check valve element, and a check valve support element.

Abstract: A valve having two elements each with a respective passageway, with one of the elements having a support and the other element having a shoulder, and a disc mounted between the elements and partially flexed over the support to form a seal on the shoulder preventing flow between the passageways until a relative pressure differential between the passageways fully flexes the disc over the support to allow flow between the passageways.

Abstract: In general, the medical infusion device of the present invention includes at least one check valve chamber through which a primary intravenous stream is arranged to pass by way of a primary fluid inlet port and a primary outlet port. Each check valve chamber has at least one physically associated infusion port through which a medicational or nutritional fluid can be injected in any number of possible ways. Each check valve chamber has an interior volume, a check valve opening formed between its interior volume and its associated infusion port, a check valve chamber opening formed through the check valve chamber and axially aligned with the check valve opening, a flexible check valve element, and a check valve support element.

Abstract: A capless medical valve includes a housing defining an inlet, an outlet, and a valve bore, all three of which meet at a common transition zone bounded by a transition surface. A valve member confined within the valve bore has a spherical head and a generally cylindrical stem sized to fit within the inlet and extending from the head toward the transition zone. A spring in compression biases the valve member toward the inlet, so that the spherical head is normally seated against the transition surface, but can be mechanically displaced off its seat by inserting a syringe tip or fitting into the inlet.

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: 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 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: A method of manufacturing a vented piercing device having a piercing spike which is considerably smaller in diameter than a standard device. The smaller diameter permits use of the device with small volume parenteral containers normally punctured with bottle needles. The method of assembly includes formation of a piercing device in two separate portions which are then welded together.