Special receptacle or package – For a tool – Body treatment
Patent
1979-06-26
1982-06-01
Dixson, Jr., William T.
Special receptacle or package
For a tool
Body treatment
83925R, 225 93, 225 94, 225104, B65D 8500, A61M 532, B02C 1912, B21D 700
Patent
active
043323235
DESCRIPTION:
BRIEF SUMMARY
At the present time, not only large and complicated destruction installations which are under municipal supervision and take care of the hazardous waste from local hospitals but also simpler devices used in, for example, medical reception centres and by dentists are utilized for the destruction of different types of injection syringes in order that these shall not, after use, be capable of injury or infection and shall not be re-usable. A further large number of injection syringes are used in the home in the occurrence of different illnesses, for example by sufferers from diabetes and asthma. The patients are recommended or instructed, for the destruction of such injection syringes, to bend or possibly break the needle or cannula, for example with the protective cap of the needle, and to break or burn the syringe cylinder before these are deposited in the dustbin.
However, in particular this latter method of needle destruction recommended for patients in the home is highly unsatisfactory. Apart from the fact that the recommended or prescribed method is often disregarded completely as a result of forgetfulness or carelessness, this method requires the use of such force for breaking or bending the needle as many patients are unable to produce, with the result that the needle finds its way into the refuse bag in more or less original shape and can poke through the bag with the resultant risk of injury and infection. Furthermore, a needle which is not bent sufficiently may, after retrieval from the refuse bag, quite easily be straightened again by unlawful or unauthorized users who, alternatively, may, for purposes of re-use, break and sharpen the needle at the point of fracture, since relatively short needle lengths may also then be used.
The major aspect of the present invention is to obviate these disadvantages and thus to realize a needle destruction device which eliminates or, at least, considerably reduces the risks of injury or infection from the destroyed needle, as well as the risks of its reuse.
This aspect is achieved, according to the invention, by means of a device having the characteristics which are apparent from one or more of the accompanying claims.
The invention will be described in greater detail below with reference to the accompanying drawing, on which
FIG. 1 shows one embodiment in the needle-protecting state,
FIG. 2 shows the same embodiment in the needle-destruction state and
FIG. 3 shows a further embodiment in the needle-destruction state.
FIG. 1 shows a conventional syringe assembly S which comprises an injection piston 1, an injection cylinder 2 and a needle or cannula 3, together with a needle destruction device D, according to the invention, disposed on the needle. The conventional conical needle holder 4 is accommodated with sliding fit in a corresponding conical upper, inner portion of a cylindrical inner sleeve 5 which is provided with a bottom and concentrically surrounds the needle. The inner sleeve is, in its turn, concentric with and connected to a cylindrical outer sleeve 6 also provided with a bottom. This connection is realized by means of a number of studs 7 on the outer side of the upper portion of the inner sleeve 5 and corresponding recesses 8, in which the studs 7 engage, on the inside of the upper, thickened portion of the outer sleeve 6. A number of steel blades 9 are fixedly retained below the upper portion of the outer sleeve 6 in the inner wall of the outer sleeve, the blades being disposed along two diametrically opposed vertical lines so as to form a zig-zag pattern. The blades 9 point obliquely towards the longitudinal axis of the sleeves 5 and 6 containing the needle 3, in a direction towards the needle holder 4, and extend through holes 10 in the inner sleeve 5 so that their tips terminate a distance from the needle 3. The length of the blades is greater than the perpendicular distance between the needle 3 and the anchorage points of the blades in the outer sleeve 6.
The sleeve 6 is made of yieldable material and may consist of a suitable thermoplastic, s
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patent: 3404593 (1968-10-01), Arcarese et al.
patent: 3450319 (1969-06-01), Ray et al.
patent: 3469750 (1969-09-01), Vanderbeck
patent: 3736824 (1973-06-01), Dunnican et al.
patent: 3796359 (1974-03-01), Dick
patent: 3893608 (1975-07-01), Koenig
patent: 4106620 (1978-08-01), Brimmer et al.
patent: 4120397 (1978-10-01), Neumann
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Dixson, Jr. William T.
Flocks Karl W.
Konsivenior AB
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