Abstract: An injection syringe of the present invention comprises a hollow barrel, a needle seat and a plunger. The top of hollow barrel comprises an axial extension which has an upper channel and a lower channel for forming a positioning spring and a seal spring. The inside of the barrel where it is coupled to the axial extension has at lest one piercer. The needle seat is placed in the hollow barrel, and bottom radius of a body of the needle seat is larger than the top of the body for tightly fastening with the seal spring. The top of needle seat has a needle head seat which includes a plurality of positioning sheets thereon and the needle seat is positioned inside the axial extension by a channel of the needle head seat.

Abstract: An injection syringe of the present invention comprises a hollow barrel, a needle seat and a plunge. The top of hollow barrel comprises an axial extension which has an upper channel and a lower channel for forming a positioning spring and a seal spring, and the inside of the plane which the conjunction connects between the barrel and the axial extension has at least one piercer. The needle seat is placed in the hollow barrel, and bottom radius of a body of the needle seat is larger than the top one for tightly fastening with the seal spring. And, the top of needle seat has a needle head seat which deposits a plurality of positioning sheets at the outside of it, and the needle seat is positioned on the axial extension by a channel of the needle head seat.

Abstract: A safety syringe with retractable needle is disclosed. The syringe body contains a hollow needle mounted on a base. An ear on the base extends through a guide slot in the wall of the body. The ear follows the guide slot and allows the needle to extend and protrude from the end of the body or be retracted back into the body after use. A front and rear lock slot hold the needle in an extended or retracted position. Once retracted, the needle tilts to one side, thus easily identifying the syringe as used and preventing the needle from accidentally protruding from the syringe body. A vial removal knob provides easy removal of the sample vial. A rear cover closes the end of the body to prevent the rear needle tip from protruding from the body. Therefore, a high degree of safety for medical personnel and patients is ensured.

Abstract: The invention provides a safety syringe for extracting blood, with retractable or removable needle that can be retracted into the syringe body or removed after use and safety locks that lock the retractable needle in an extended position during use and in a retracted position after use to ensure that the syringe is not reused or that the needle is not inadvertently extended. When retracted, the needle assembly is cocked at an angle identifying the syringe as used and adding further protection to prevent the needle from being inadvertently extended and exposed from the tube. These safety features work in conjunction to enhance the usability and increase the safety of the syringe. Thereby protecting medical workers from being injured by an exposed needle or contaminated by disease or infection from contact with the patient's blood present on a used needle.

Abstract: The invention provides a safety syringe for extracting blood, with retractable or removable needle that can be retracted into the syringe body or removed after use and safety locks that lock the retractable needle in an extended position during use and in a retracted position after use to ensure that the syringe is not reused or that the needle is not inadvertently extended. When retracted, the needle assembly is cocked at an angle identifying the syringe as used and adding further protection to prevent the needle from being inadvertently extended and exposed from the tube. These safety features work in conjunction to enhance the usability and increase the safety of the syringe. Thereby protecting medical workers from being injured by an exposed needle or contaminated by disease or infection from contact with the patient's blood present on a used needle.

Abstract: An ergonomic safety vacuum syringe for sampling blood comprises a vacuum, a hollow barrel, a first needle, a second needle, and a press plate. The hollow barrel includes an end surface and a cylindrical side surface, with a trench formed through the end surface. A needle seat is coupled to the trench, and a sliding slit is formed through the end surface and cylindrical side surface. The syringe also comprises a first needle coupled to a reduced inlet disposed on the hollow barrel and the second needle having Z-shaped portion formed between opposing first and second end portions. The first end is received within the reduced inlet, while the second end portion is positioned along a central axis of the hollow barrel. Further, the press plate is positioned within the sliding slit of the hollow barrel.

Abstract: An ergonomic safety vacuum syringe for sampling blood includes a hollow barrel, a reduced lining tube and a vacuum tube. The barrel has a reduced inlet disposed on the top end thereof and a guiding slit disposed at a flank side. The reduced lining tube is installed in the barrel and includes an eccentric reduced portion disposed on the top end of the reduced lining tube and has an opening at the lower end. A needle head is engaged on the eccentric reduced portion and a through guiding hole is disposed at the center of the eccentric reduced portion to position a reverse Z-shaped needle therein, a lower needle tip of the needle is positioned at a central axis in the reduced lining tube, a press plate is positioned in the guiding slit. The vacuum tube is disposed in the barrel, and contains an elastic plug that is covered on an opening at the upper side of the vacuum tube.

Abstract: The present invention relates to a safety vacuum syringe for blood sampling conformed to ergonomics, mainly comprises: a hollow barrel, the barrel has a reduced inlet disposed on the top end thereof and a guiding slit disposed at the flank side thereof. A reduced lining tube is installed in the barrel, an eccentric reduced portion is eccentrically disposed on the top end of the reduced lining tube and has an opening at the lower end thereof, the eccentric reduced portion is wedged and fixed in the reduced lining tube and projects out of the reduced inlet. Besides, a needle head is fixedly covered on the eccentric reduced portion, a through guiding hole is disposed at the center of the eccentric reduced portion to position a ┌┘ type needle therein, a lower needle tip of the needle is positioned at the central axis in the reduced lining tube, a press plate is connected to said reduced lining tube at the outer flank side thereof and is positioned in the guiding slit.

Abstract: The present invention relates to a safety vacuum syringe for blood sampling conformed to ergonomics, mainly comprises: a hollow barrel, the barrel has a reduced inlet disposed on the top end thereof and a guiding slit disposed at the flank side thereof. A reduced lining tube is installed in the barrel, an eccentric reduced portion is eccentrically disposed on the top end of the reduced lining tube and has an opening at the lower end thereof, the eccentric reduced portion is wedged and fixed in the reduced lining tube and projects out of the reduced inlet. Besides, a needle head is fixedly covered on the eccentric reduced portion, a through guiding hole is disposed at the center of the eccentric reduced portion to position a type needle therein, a lower needle tip of the needle is positioned at the central axis in the reduced lining tube, a press plate is connected to said reduced lining tube at the outer flank side thereof and is positioned in the guiding slit.

Abstract: A safety syringe for intravenous injection with a guided plunger is provided that comprises a barrel, a needle unit, and a plunger. An outlet is eccentrically disposed on the top of the barrel. The needle unit includes a needle and a spindle shaped needle holder mounted inside the outlet. A connecting stem has an arrowhead shaped mortise disposed under the spindle shaped needle holder. A plunger has a plunger head on the top thereof with an arrowhead shaped tenon eccentrically disposed thereon. A supporting plate disposed under the plunger head has two guide notches matched with two longitudinal guide strips inside the barrel, so that the arrowhead shaped tenon aligns with the needle unit. After completion of the injection, the arrowhead shaped tenon and the needle unit are connected together, the needle unit can then be pulled into the barrel and subsequently deformed.

Abstract: A safety vacuum syringe for blood sampling conformed to ergonomics comprises: a needle head having a cannula needle with two needle tips at opposite ends held by a needle holder at a middle; a barrel having eccentric reduced front portion and a bottom opening end; an eccentric reduced lining tube inserted in the front portion of the barrel; a vacuum container having a plug sealed with front opening thereof; a tubular connector which connects the reduced lining tube to the vacuum container during using; and characteristically a reversible front cover which can be pressed into the cannula needle thoroughly in the barrel after using.

Abstract: A safety vacuum syringe for blood sampling, which includes a barrel, a cylindrical vacuum container mounted inside the barrel, a reduced tubular lining cap mounted in the barrel at the front end, a hollow cylindrical connecting member fixedly secured to the front end of the cylindrical vacuum container, a needle holder having an outer needle cannula and an inner needle cannula at two opposite ends, an outer needle cap covered on the outer needle cannula, and an outer bottom cap fastened to the barrel to hold the vacuum container on the inside, wherein when the vacuum container is pulled out and detached from the barrel, the connecting member and the needle holder are pulled to the inside of the barrel, the outer needle cap and the outer bottom cap are respectively and invertedly inserted into the two opposite ends of the barrel to deform the needle cannulas in the barrel.

Abstract: The present invention relates to a safety vacuum syringe with two opposite needles for blood sampling, which mainly comprises a cylindrical barrel, a bell type sleeve, a needle unit, a cylindrical vacuum container, a snapping member, a needle cap, and a bottom cap. When it is desired to sample blood, the vacuum container is pushed into the barrel through the back end thereof, so that the snapping member will be hooked with the bell type sleeve, After finished of the blood sampling, the vacuum container stored with blood is pulled out of the barrel, and the bell type sleeve with the needle unit will be pulled into the barrel, the needle cap and the bottom cap are then recversely inserted into the barrel for bending the needles to be damaged.

Abstract: A safety minute dose hypodermic syringe which includes a locating stopper mounted inside the front end of the barrel and connected to the locking tip, which holds the needle cannula, and an arrowhead-like retainer rod fixed secured to the movable rubber stopper and connected to the plunger, the arrowhead-like retainer rod being forced into engagement with an arrowhead-like retaining hole on the locating stopper after the injection, for permitting the locating stopper and the locking tip with the needle cannula to be pulled backwards by the plunger to the inside of the barrel and retained in place by inside annular flanges of the barrel, and for permitting the needle cannula to be deformed by the plunger when the plunger is disconnected from the retainer rod and inserted into the front end of the barrel.

Abstract: A safety hypodermic syringe in which the needle holder has an arrowhead-like rear retaining hole; the rubber stopper has an arrowhead-like retainer rod that can be forced into engagement with the retaining hole of the needle holder for permitting the needle holder with the needle cannula to be pulled backwards to the inside of the barrel by the plunger; the plunger can be disconnected from the rubber stopper and then inserted into the front end of the barrel to deform the needle cannula when the needle cannula is received on the inside of the barrel.

Abstract: A safety syringe for saving cost includes: a coupling member of arrowhead shape integrally formed with the thin-disk plunger, an annular ring embedded on the plunger to allow the plunger to be slibably held in the syringe for injection use, a syringe cylinder integrally formed with a sleeve portion on a front portion of syringe cylinder, an annular depression formed at the lower portion of said sleeve portion, a hollow needle which comprising a shank portion and a needle portion, said shank portion which connected with needle portion having a bias socket, said shank portion formed integrally a downward depression in it's rear portion from middle portion of the shank portion to somewhere beyond bias socket appropriate whereby upon retraction of the plunger and the coupled needle into the syringe, the needle will be inclined to prevent a further outward protruding of the retracted needle, and said shank portion could be held in the sleeve portion.

Abstract: A safety syringe for intravenous injection includes: a hollow needle normally eccentrically held in a sleeve portion formed on a front portion of a syringe, a suction tube replaceably mounted on the sleeve portion for sucking liquid medicine from an ampoule into the syringe, a plunger straightly slidably held in the syringe for injection use, a coupling member retained in the plunger engageable with a biasing socket recessed in a rear needle portion of the hollow needle with the biasing socket, whereby upon pushing of the plunger to the needle by forcibly inserting the coupling member into the biasing socket of the needle when finishing the injection, the biasing socket will be forcibly coupled with the coupling member, and upon retraction of the plunger and the needle into the syringe, the needle will be automatically inclined to prevent an outward protruding of the retracted needle from the syringe for preventing its pricking to the others; with the hollow needle annularly formed with a ratchet-tooth recess

Abstract: A safety syringe with a minimized thin-disk plunger for saving cost includes: a hollow needle normally held in a front portion of a syringe, a coupling member of arrowhead shape integrally formed with the thin-disk plunger, an annular ring embedded on the plunger to allow the plunger to be slidably held in the syringe for injection use, the coupling member formed on the plunger engageable with a biasing socket recessed in a rear needle portion of the hollow needle and with the biasing socket generally formed as a conical shape having a longitudinal conical axis inclined from a needle axis of the needle, whereby upon retraction of the plunger and the coupled needle into the syringe, the needle will be inclined to prevent a further outward protruding of the retracted needle.

Abstract: A heat-dissipating valve is formed on a steel rim of a car tire which includes an inner tire secured in an outer tire, whereby upon puncture of the outer tire, the inner tire, when compressed between the outer tire and the steel rim as loaded by a car weight, may release hot air outwardly through the heat-dissipating valve for dissipating frictional heat outwardly as produced by the friction between the inner tire and the steel rim or outer tire to prevent a fire accident.

Abstract: A safety syringe includes: a hollow needle normally held in a front portion of a syringe, a plunger slidably held in the syringe for injection use, a coupling member retained in the plunger engageable with at least a biasing socket recessed in a rear needle portion of the hollow needle with the biasing socket generally formed as a conical shape having a longitudinal conical axis inclined from a needle axis of the needle when normally fixed in the syringe with the needle axis aligned with a syringe axis longitudinally formed in a center line of the syringe, whereby upon retraction of the plunger and the needle coupled to the plunger, with the biasing socket of the needle forcibly coupled with the coupling member, into a bore portion in the syringe, the needle will be automatically inclined as the biasing socket of the needle is restored by the coupling member retained in the plunger to prevent an outward protruding of the retracted needle from the syringe for preventing its pricking to the others.