HOOKING AND PIERCING DEVICE FOR VIALS AND TUBES PROVIDED WITH A CLOSING CAP OPENABLE BY PRESSURE

Abstract

A hooking and piercing device (1) for vials and tubes provided with a closing cap openable by pressure, comprising a hooking hood (2) with circumferentially distributed hooking toothed sectors (3) and an axial perforated stem (4) which extends axially and centrally out of the hooking hood (2) to be engaged by pressure inside a tube. The axial perforated stem (4) has an axially perforated appendix (6) which extends inside the hooking hood (2) and is shaped like a syringe luer. A frangible closing element (17) on the axial perforated stem (4) may be provided at the end of the axial perforated stem (4) opposite to the one with the luer-shaped appendix (6).

Claims

1. A hooking and piercing device for vials and tubes provided with a closing cap openable by pressure, comprising a hood-shaped hood with circumferentially distributed hooking toothed sectors and a connecting part formed by an axially perforated stem which extends axially and centrally out of the hood and is engaged by pressure inside a tube, the axially perforated stem has an axially perforated appendix which extends within the hood, wherein the appendix is shaped like a syringe luer.

2. The device according to claim 1, wherein there is a frangible closing element of on the axially perforated stem which is opposite the end of the axial perforated stem with the luer-shaped appendix.

Description

DESCRIPTION OF THE DRAWINGS

[0009] An embodiment of the device according to the invention and a possible variant thereof are shown by way of example in the appended drawings, wherein:

[0010] FIG. 1 shows an axial section of the device;

[0011] FIG. 2 shows a front view of the same device;

[0012] FIG. 3 shows the same device seen from the bottom relative to FIG. 2:

[0013] FIG. 4 shows the same device seen from the top relative to FIG. 2;

[0014] FIG. 5 shows a vial with a closing cap which can be opened by axial pressure, to which the device of FIGS. 1-4 can be coupled;

[0015] FIG. 6 shows the device in FIGS. 1-4 and the vial in FIG. 5 after hooking;

[0016] FIG. 7 shows a axial section of a variant of the device in FIGS. 1-4;

[0017] FIG. 8 shows a front view of the variant.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The device shown in FIGS. 1-4, indicated as a whole with the number 1, has a hooking part formed by a hood 2 with circumferentially distributed toothed sectors 3 intended to couple the cap of a vial and a connection part formed by an axially pierced stem 4 intended to be inserted by axial pressure into the end of a tube 5 connected either directly or through a connector to a bag containing a liquid solution. The stem 4 has a terminal appendix 6 shaped like a syringe luer which extends inside the hood 2.

[0019] The hood 2 with toothed sectors 3 and the luer-shaped end appendix 6 respectively couple and pierce a cap of a vial which is preferably but not necessarily of the type described in EP 2 867 132 B1.

[0020] A vial 7 containing an active substance 8 in powder or gel form and provided with a hermetic closing cap 9 coupled to the thickened mouth 10 of the vial by means of a metal collar 11 with a central hole 12 and hooking flaps 13 is shown in FIG. 5. According to EP 2 867 132 B1, the cap 9 is made of elastically deformable material and has a central portion formed by a thin membrane 14 below which a thin slit 15, which ends between a pair of side lips 16, extends.

[0021] As shown in FIG. 6, by hooking the toothed sectors 3 of the cap 2 of the hooking and piercing device 1 below the mouth 10 of the vial 7, the luer-shaped appendix 6 of the same device pierces the central membrane 14 of the closing cap 9 and is inserted into the slot 15 enlarging it until ending in the inner space of the vial.

[0022] Thus, a fluid path is formed from the inner space of the vial 7 to the tube 5 and from there to the bag to which the tube 5 is connected.

[0023] As shown in FIGS. 7 and 8, the hooking and piercing device 1 may provide frangible closing element 17 of the axial hole of the stem 4 at the end of the stem 4 opposite to the one with luer-shaped appendix 6.

[0024] In such a case, the path for fluid from the inner space of the vial 7 to the tube 5 is normally closed and may be opened by breaking the frangible element 17 and separating it from the stem 4.