Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-06-01
1997-02-04
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604 90, 604218, A61M 500
Patent
active
055993125
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a syringe for containing medicine, medicine for animals, medicine for clinical diagnosis, and any medicine using a syringe barrel.
BACKGROUND OF THE RELATED ART
The conventional usual injection is contained in an ampoule or vial. In injection, first, the ampoule is cut, or rubber cap of the vial is bored to absorb the injection liquid, and thereafter the injection is given to a patient. In this case, the syringe is disposed so that a single syringe needle is not used for plural persons, thereby preventing infection of bacteria.
Usually, usually, a single injection is carried out as described above. As the case may be, however, a mixed injection of two or more injections is carried out in the injection for treatment of, for example, knee-joint arthritis, shoulder-joint arthritis. Injection of only the hyaluronic acid natrium as a treatment medicine gives a patient a severe pain. To moderate the pain, hydrochloric acid lidocaine as local anesthesia is mixed with the hyaluronic acid.
Specifically, first, the ampoule is cut to absorb hyaluronic acid contained therein into a syringe. Next, using the syringe needle, the rubber stopper of a vial is bored to absorb the hydrochloric acid in the syringe. Thus, two injections are mixed. This mixed injection is injected into the affected part. Two or more injections are also mixed in the case where freeze-dried material such as antibiotic, steroid, vaccine, etc. or powder filler is sealed in a vial, and its solution or diluted solution is contained in an ampoule. In this case, first, the ampoule is cut to absorb the solution contained in the ampoule into a syringe. The syringe needle is thrust through the rubber stopper of a vial to inject the solution within the syringe into the vial. The syringe needle is once pulled out from the rubber stopper. The vial is shaken to dissolve the freeze-dried material. The syringe needle is again thrust through the rubber stopper to absorb the solution into the syringe. Thereafter, a patient is given the injection.
In the injection manners as described above, persons engaged in medical treatment may be injured by pieces of glass of the ampoule in cutting the ampoule. Then, infection or contagion of hepatitis or AIDS may also occur owing to bleeding. When the ampoule is cut, minute fragments of glass may be mixed into the injection. Further, when the syringe needle is thrust through the rubber stopper, minute fragments of the rubber may be mixed into the injection. Mixture of these alien substances into a human body was confirmed by a microscope. Bad influence of these alien substances on the human body is problematic.
In order to solve these problems, the syringe as shown in FIGS. 28(a) and 28(b) was proposed which is disclosed in Japanese Patent Publication No. Sho 62-58745. This syringe, as shown in FIG. 28(a), includes a needle holder 1 on the side of a syringe needle and a cylinder 4 closed at its ends by plungers 2 and 3. The needle holder 1 and the cylinder 4 are fabricated separately, and the space formed by the plungers 2 and 3 is previously filled with an injection. In use, as shown in FIG. 28(b), with the cylinder 4 fit in the needle holder 1, the plunger 3 is pushed toward the side of the needle. Then, the plunger 2 is pushed into the needle holder 1 and the injection flows through a passage 6 formed in the needle holder 1 toward the needle.
This syringe does not require necessity of cutting the ampoule, and hence can solve the problems of bacteria infection due to injury in ampoule cutting and mixture of minute fragments of glass.
This syringe, however, can be applied to only the case where a single kind of injection agent is used. Where two or more injections are to be injected, i.e., a mixed solution of two injections A and B is to be injected, these injections A and B must be mixed previously. In this case, even when the injections A and B are solely present, respectively, and also stable for a long-time preservation, the mixture of injections A and B is diff
REFERENCES:
patent: 3680558 (1972-08-01), Kapelowitz
patent: 3749084 (1973-07-01), Cucchiara
patent: 4235235 (1980-11-01), Bekkering
patent: 4439184 (1984-03-01), Wheeler
patent: 4496344 (1985-01-01), Kamstra
patent: 4668223 (1987-05-01), Grotenhuis
patent: 4929230 (1990-05-01), Pfleger
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