Single use syringe with automatic safety mechanism

Claim 1

It is claimed as a new and own invention, the exclusive property and commercial use of a: 1) Syringe for only one use, with automatic system that propels liquid, occults the needle of the injection and blocks the mechanism, is characterized by avoiding a second use by hiding the needle of the injection inside the syringe thanks to a special blockade and resulted form theer automatic functions carried out by the motor spring (G) of the figure 1, by the accordion motor (Z) of the figure 2, by the motor rubber (Q) of the figure 3,or well by the vacuum rubber (D′) of the figure 4, each one operates separately and independently. These functions are:A) Absortion of the liquid when the mechanism is released by means of the clip (F) and the strenght of the motor (G),(Z),(Q) or (G′). B) Occultation of the needle of the injection (H), situated on the base (I) which contains the brake rubber (J) and by joining the hook of dragging (D) with the union cavity of this (K), and thanks to the strength of the motor spring, accodion motor, motor rubber, or vacuum rubber. C) Blockade of the mechanism (E), impedes the passage of the needle base (I) thought this point. Like this, this mechanism is completed with the option that can replace the clip (F) of the figure 1 by the top rim of the piston (P) of the figure 3, in the case of chosing the motor rubber (Q) for the automation of the functiones of the mechanism, or even it can also be replaced by the top (G′) of the figure 1 in the case of chosing the mechanism that includes the vacuum rubber (D). 2) A syringe for only one use with automatic system that propels liquids, occults the needle of the injection and blocks the mechanism, according to claims 1, characterized because the mechanism is presented locked thanks to the action of the clip and because the absorption of the liquid is carried out automatically by the motor spring, accordion spring, motor rubber, or vacuum rubber, without the man's action who only controls the speed of the filling. 3) A system according to the claims 1 and 2, characterized by occulting the needle of injection inside the syringe thanks to the strenght of the motor rubber, or vacuum rubber on the base of the needle that carries out the subjection of this one pressing the walls of the capsule, and at the same time, it allows the dragging of this base. 4) A system according to claims 1 to 3, characterized by blocking the mechanism when accupying the moving blocking sheet, the place evacuated by the base of the needle, and so, hindering the return of this one to the starting point, and it is also characterized by incorporatig the syringe near the accomodation of the clip, a leaving top of the mechanism that consist of a circular projection like a ring with a central orifice, smaller than the radius of the base of the needle. 5) A system according to claims 1 to 4, characterized by offering the option showed in the figure 3, that allows the motor rubber to be stopped, without losing the qualities of flexibility an elasticity during its permanence in the container, and it also incorporates the top rim of the piston that replaces the functions of the clip in the nearest measure to the hook towards the union cavity of this one, being detached wuen the syringre is filled by the desired liquid. 6) A system sccording to claims 1 to 5, chareacterized by offering a vaccum rubber (D′) with circular hoop (F′) that impede the inlet of the air though this point, being able to produce a vacuum behind the rubber of suction (A′) when this one is as nearest as possible from (D′) and even, when it moves toward with tue piston (L) pressing (N) until the hook (D) comes to the cavity (K). The joining of (D) and (K) will not be carried out until the top (G′) is released from the piston (L). This system is characterized by presenting a circular hoop (H′) made in (L), and due to the fact that (L) in every sense is cylindrical and has got a thickness that is slightly superior to the circle formed by the hoops (F′), this piston includes some supports at both ends of this one, on the point (B′) that give it a greater strength. 7) A system accordinf to claims 1 to 6, characterized by including a system based on pipes drawn in the figure 3, that allows the mounting of the motor rubber in the piston in only one piece without joinings, through this pipe that goes from the hook to the seating of the rubber in the piston and at the same time, in the exterior platform of the tube of the syringe through the pipes produced at both sides and that allows the internment of this motor rubber until the seating orifices of the rubber in this platform. 8) A syringe for only one use with automatic system that propels liquids, occults the needle of the injection and blocks the mechanism, characterized by presenting three options of components that carry out the automatic function of this syringe correctly described in the main part of this report, and claims with three drawings, all of then included in eight pages, that mean the presentation of a patent number 9100316 in the patent Office of the Industrial Property Register in Madrid, with the priority date on october 19th 1.990. 9) A system according to claims 1 to 8 characterized by presenting four independent options of operation, which, doing the same work with the mechanism and in the same way, are those described in the main part of this report and in the drawings 1,2,3 and 4. 10) A Syringe for only one use, with automatic system that propels liquids, occults the needle of the injection and blocks the mechanism, as it is descibed in the main part of this report, and it includes the description, claims and a summary that contain of eleven pages, written on only one side, and with four drawings, three of which are designed in page number ten and the fourth one in page number eleven.