Non reusable disposable capsule containing an individual vaccine dose to be hypodermically injected with a pressure needleless injection apparatus
First Claim
1. A disposable capsule for a needleless hypodermic injection device comprising:
- a hollow body having an open front end and a rear end that is closed by a bottom wall that is attached to the body by an outwardly extending flange having a smaller thickness than a remaining portion of the bottom wall, said body is connectable to said hypodermic injection device so that a piston can engage the bottom wall and detach said flange from said body;
a nozzle, attached to the front end of the body, having a minute front orifice through which a liquid to be injected can expelled in the form of a jet; and
a sealing disc within said body so as to prevent the liquid within the body from leaking out the rear end, said disc is moveable from a first position at the rear end of the body to a second position at the front end of the body so that the liquid to be injected can be expelled out said orifice, said disc immediately moves when said piston detaches the flange and moves the bottom wall toward the front end.
6 Assignments
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Accused Products
Abstract
This invention related to a simple device for hypodermic pressure-injection which does not make use of needles for introducing the vaccine into the patient'"'"'s body, and which is fully constituted by low cost disposable material self-destroying after being utilized a single time. This device already contains within it, a single metered dose of vaccine or medication to be injected and, when in use, it comprises solely four elements; and injector nozzle with an outlet orifice, a sealing disc, a cylindrical body and the dose itself of vaccine to be injected. The device, referred to as disposable capsule, is used at the front portion of a pressure-injection apparatus and aims at establishing a vaccination means which is simultaneously disposable, fast, safe, of low operational cost and mainly that does not make use of hypodermic needles and whose assembly which touches the patient at the injection site is self-destroyed after a single use, thereby avoiding any possibility of reuse and consequent possibility of disseminating blood-transmittable diseases.
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Citations
16 Claims
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1. A disposable capsule for a needleless hypodermic injection device comprising:
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a hollow body having an open front end and a rear end that is closed by a bottom wall that is attached to the body by an outwardly extending flange having a smaller thickness than a remaining portion of the bottom wall, said body is connectable to said hypodermic injection device so that a piston can engage the bottom wall and detach said flange from said body; a nozzle, attached to the front end of the body, having a minute front orifice through which a liquid to be injected can expelled in the form of a jet; and a sealing disc within said body so as to prevent the liquid within the body from leaking out the rear end, said disc is moveable from a first position at the rear end of the body to a second position at the front end of the body so that the liquid to be injected can be expelled out said orifice, said disc immediately moves when said piston detaches the flange and moves the bottom wall toward the front end. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A disposable capsule, for a needleless hypodermic injection device, comprising:
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a hollow body having a front end closed by a top wall, and a open rear end said top wall is attached to the body and has a center portion having a smaller thickness than the remaining portion of the top wall so that it can be easily ruptured, and said body is connectable to said hypodermic injection device so that a piston in the injection device can move within the body; a nozzle, attached to the front end of the body, having a minute front orifice through which a liquid to be injected can be expelled in the form of a jet; and a sealing disc positioned within the body at the rear end so as to prevent a liquid within the body from leaking out the rear end, said disc is moveable from a first position at the rear end of the body to a second position at the front end of the body so that the top wall can be ruptured and the liquid to be injected expelled out said orifice, said disc moves when engaged by the piston as the piston moves through the body towards the front end. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A disposable capsule, for needleless hypodermic injection device, comprising:
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a hollow body having a front end closed by a top wall, and a rear end that is closed by a bottom wall that is attached to the body by an outwardly extending flange having a smaller thickness than a remaining portion of the bottom wall, said top wall is attached to the body and has a center portion having a smaller thickness than the remaining portion of the top wall so that it can be easily ruptured, and said body is connectable to said hypodermic injection device so that a piston in the injection device can engage the bottom wall and detach said flange from the body; a nozzle, attached to the front end of the body, having a minute front orifice through which a liquid to be injected can be expelled in the form of a jet; and a sealing disc positioned within the body at the rear end so as to prevent a liquid within the body from leaking out the rear end, said disc is movable from a first position at the rear end of the body to a second position at the front end of the body so that the top wall can be ruptured and the liquid to be injected expelled out said orifice, said disc moves when said piston detaches the flange and moves the bottom wall toward the front end.
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Specification