Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1990-05-24
1992-07-14
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604187, 604110, 604232, 128763, A61M 500
Patent
active
051298880
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a support particularly for injections or samplings.
Hollow supports made of steel, to one end whereof metallic needles are coupled, are commonly used in the medical field; besides the normal outer pointed portion, said needles comprise a portion which is arranged inside the supports and is provided with a second point.
Ampoules filled with pre-dosed anaesthetic are arranged in said supports.
Said ampoules are provided, at one end, with a membrane lid made of rubber-like material, into which the second point of the needle penetrates; a plunger is slidable in said ampoules from the other end and injects the anaesthetic by being pushed by a rod rigidly coupled to said support.
Syringes constituted by a cylindrical body made of plastic material and/or metal, to which one of said two-pointed needles is screwed, are also commonly used.
Containers shaped complementarily to the internal surfaces and in which a vacuum has been produced are insertable in said cylindrical body.
Said containers, like the above-mentioned ampoules, are provided with a membrane lid into which the second point of the needle penetrates, allowing the liquid to be drawn inside.
In these and other cases, the coupling between the support and the needle is obtained with a stable screw coupling or with systems designed so that the parts are not separable after use without at least some effort.
However, in this manner, during these separation operations the user is exposed to the danger of accidental lesions or even of infections arising from the possible contamination of the needle with the blood of a patient.
SUMMARY OF THE INVENTION
The aim of the present invention is to provide a support, particularly for injections or samplings, which allows one to avoid the manual handling of the ampoule after its use.
Within the scope of the above-described aim, a primary object is to provide a support for injections or samplings which can be used only once, the structure and the needle which has separated therefrom after use being collectable in suitable containers.
Another important object is to provide a support for injections or samplings in which the needle can be separated without the operator making contact therewith.
Another important object is to provide a support by means of which the needle is separated after use in an easy and rapid manner and in conditions of maximum safety.
Still another object is to provide a support the constructive principles whereof can be effectively applied to all kinds of devices for injections or samplings.
Not least object is to provide a support for injections or samplings which has a low cost.
This aim, these objects and others which will become apparent hereinafter are achieved by a support particularly for injections or samplings which comprises a hollow body provided, at one end, with a fixed or removable bottom from which a needle coupling element protrudes, characterized in that it has at least one breaking portion which facilitates the separation of said needle coupling element from said bottom.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the invention will become apparent from the detailed description of some embodiments thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
FIG. 1 is an exploded perspective view of a dental syringe according to the invention;
FIG. 2 is an enlarged perspective detail view of the bottom of the dental syringe of FIG. 1;
FIG. 3 is an exploded perspective view of a container used for samplings, provided with an axially offset needle coupling element with screw coupling;
FIG. 4 is a further embodiment of the container of FIG. 3, with bayonet-like needle coupling.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference to the above-described figures, a dental syringe according to the invention is generally indicated by the reference numeral 1 and comprises a tubular support 2 which is provided, at one end, with an internal thread 3 which
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Josif Albert
Modiano Guido
Polutta Mark O.
Rosenbaum C. Fred
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