Abstract: A safety syringe (1) includes a sleeve assembly (10) threadedly secured to a vial (40) containing regular insulin and including an axial channel (12) with a needle assembly (20) placed therein, and two opposite pivot pins (14) formed on an outer surface. The needle assembly (20) includes a needle hub (22) formed on a front end, and a hypodermic needle (23) through the needle hub (22). A protective covering (30) includes two opposite arms (31) pivotably secured to the pivot pins (14), a space (32), a slot (33) parallel to the arms (31) and communicating with the space (32), and at least one lock member (34) at an end of the slot (33). After injection, a clockwise rotation of the protective covering (30) until the lock member (34) passes through the needle hub (22), and the hypodermic needle (23) passes through the slot (33) to conceal in the space (32).

Abstract: A blood collection apparatus is provided with a blood collection assembly including a casing tube including a forward nose, a plurality of connectors and a rear flange having a flexible projection, a plunger slidably disposed in the casing tube and including a forward plug and an elongated arm having a plurality of cavities, a blood collection tubes, an adapter assemblies each including a tube body, a first tube extending out of one end and insert into a related connectors of the casing tube, a second tube extending out of the end to insert into one of the blood collection tubes, and a butterfly needle assembly mounted to the nose of the casing tube. A pulling of the plunger moves the plug rearward and pivots the projection to engage in one cavity of the elongated arm and an orifice of the each related connectors is not blocked by the plug so as to flow blood from the tube casing to one of the blood collection tube via one connector and one adapter assembly.

Abstract: A safety syringe includes a barrel including a hollow cylindrical tip; a needle assembly including a hollow needle hub on the tip; a hinge including a bifurcated base and a moveable bifurcation on the needle hub, the movable bifurcation having two relaxation length of hinge ends pivotably secured to the base, a wall member formed with the bifurcation, and a V-shaped resilient member having two ends hingedly secured to the bifurcation and the base respectively; and a needle protection housing including a grooved body and a latch releasably secured to the wall member. When the needle protection housing is pivoted about both the resilient member and the hinge ends, resilient energy is stored in the resilient member. When the resilient energy reaches a set value, the resilient member releases the resilient energy to pivot the needle protection housing toward a hypodermic needle until the hypodermic needle is lockingly concealed in the grooved body.

Abstract: A safety syringe is provided with a barrel including a casing tube and a hollow, cylindrical tip; a needle assembly releasably secured to the tip; a pivot assembly releasably secured to the barrel; and a locking cover assembly pivotably secured to the pivot assembly. In inoperative position, the locking cover assembly is distal the needle assembly which is exposed. After dispensing, a pivotal movement of the locking cover assembly toward the needle assembly is configured to cover and lock the needle. This can prevent the needle from accidentally pricking a medical employee to contaminate the medical employee with microorganisms or blood on the needle. Further, this can prevent the safety syringe from being used for a second time. Thus, the safety syringe is ready for disposal.

Abstract: A blood collection apparatus is provided with a blood collection assembly including blood collection tubes, adapter assemblies each including a first tube extending out of one end and a second tube extending out of the end to insert into one of the blood collection tubes, and a casing tube including a forward nose, connectors each connected to the first tube of each adapter assembly, and a rear flange having a flexible projection; a butterfly needle assembly mounted to the nose of the casing tube; and a plunger slidably disposed in the casing tube and including a forward plug and an elongated arm having cavities. A pulling of the plunger moves the plug rearward and pivots the projection to engage in one cavity so as to flow blood from the tube casing to one blood collection tube via one connector and one adapter assembly.

Abstract: A safety butterfly needle for tumor puncture is provided with a needle assembly including a needle at a distal end of a needle housing, and a connector extending out of a proximal end of the needle housing; a wing having at least one winged element and a raised tunnel member for receiving the needle housing; a needle protection device including a hollow member, a slot on the hollow member and having a cavity at one end, a needle receiving cavity at an other end, and a restricting projection on the slot; and an interconnection interconnecting the hollow member and the needle housing and including a bend. The needle protection device can be pivoted toward the needle by pivoting about the bend to pass the needle through a gap between the restricting projection and the slot until being stopped by an inner surface of the hollow member.

Abstract: A disposable intravenous flow control device (20) includes a rigid casing (21) defining a flow passage having a fluid entrance (23) and a fluid exit (22); a flow regulator (10) disposed in the flow passage of the casing (21) and comprising an annular flange (11) extending upward, a hollow, cylindrical protrusion (12) raised upward from a central portion, the protrusion (12) being open to the bottom, an open fluid storage (13) defined between the flange (11) and the protrusion (12), and a hollow, cylindrical skirt (14) extending downward from the bottom of the protrusion (12); and a suction cup (15) releasably secured to the skirt (14) for blocking the fluid exit (22) when fluid in the casing (21) is consumed.

Abstract: A disposable intravenous flow control device (20) includes a rigid casing (21) defining a flow passage having a fluid entrance (23) and a fluid exit (22); a flow regulator (10) disposed in the flow passage of the casing (21) and comprising an annular flange (11) extending upward, a hollow, cylindrical protrusion (12) raised upward from a central portion, the protrusion (12) being open to the bottom, an open fluid storage (13) defined between the flange (11) and the protrusion (12), and a hollow, cylindrical skirt (14) extending downward from the bottom of the protrusion (12); and a suction cup (15) releasably secured to the skirt (14) for blocking the fluid exit (22) when fluid in the casing (21) is consumed.

Abstract: An intravenous flow control device includes a rigid casing (2) defining a flow passage having a fluid entrance (211) and a fluid exit (222); and a flow regulator (1) disposed in the casing (2) and including a floating member (11) having a hollow cylinder (111), an opening (112) on a bottom of the hollow cylinder (111), and a lower stepped-diameter chamber (113) in the hollow cylinder (111) and communicating with the opening (112); and a valve member (12) including a hollow member (121), a flat member (122), and a space (123) open to top. The valve member (12) is retained in the chamber (113) through the opening (112) and together they form a sealed hollow structure. The flow regulator (1) floats on fluid in the casing (2) due to the sealed hollow structure.

Abstract: An intravenous flow control device includes a flexible drip chamber (20) comprising a fluid entrance (22) and an open bottom (231); a rigid drip assembly (30) secured to the drip chamber (20) and comprising an inner cylinder (31) having a bottom exit (331); and an internal float valve (10) comprising a fastening member (12) including a hollow inner cylinder (121), a plunger (11) slidably disposed through the inner cylinder (121), an upper float member (15) secured to one end of the plunger (11), a lower float member (13) secured to the other end of the plunger (11), and a block member (14) secured to the lower float member (13) for sealingly blocking the exit (331). Fluid flows into the inner cylinder (31) for accumulation so as to float the block member (14), thereby unblocking the exit (331) and moving the plunger (11) upward.

Abstract: One embodiment of a blood transfusion device includes a drip chamber (10) comprising a bottom outlet (113); a filter (40) fixedly disposed in the drip chamber (10); and a float regulator (20) moveably disposed in the drip chamber (10) under the filter (40), the float regulator (20) comprising an inverted upper cup (21) including a top projection (212), a lower cup (22) secured to the upper cup (21), and a suction cup (23) secured to an underside of the lower cup (22). An inner diameter of the upper cup (21) is greater than an outer diameter of the lower cup (22). The projection (212) contacts an underside of the filter (40) when blood from a blood bag (90) sufficiently fills the drip chamber (10). The suction cup (23) falls to permanently close the outlet (113) when blood in the drip chamber (10) completely drains.

Abstract: A disposable intravenous flow control device (20) includes a rigid casing (21) defining a flow passage having a fluid entrance (23) and a fluid exit (22); a flow regulator (10) disposed in the flow passage of the casing (21) and comprising an annular flange (11) extending upward, a hollow, cylindrical protrusion (12) raised upward from a central portion, the protrusion (12) being open to the bottom, an open fluid storage (13) defined between the flange (11) and the protrusion (12), and a hollow, cylindrical skirt (14) extending downward from the bottom of the protrusion (12); and a suction cup (15) releasably secured to the skirt (14) for blocking the fluid exit (22) when fluid in the casing (21) is consumed.