Sterile flexible package with pressure compensator for the dosed reconstitution of fluid medicinal or nutritional substances to be administered to patients by infusion or injection

Abstract

The package comprises a sterile bag filled with liquid diluent, a bottle equipped with a pierceable cap to contain a medicinal substance and a tube extending from the bag and having a coupling and perforation device for the cap. The bag is housed in a first casing, while the bottle and the coupling and perforation device are in a second casing. The tube has a portion, housing a flow diverter adjustable from a first position which impedes any communication between the bottle and the bag, a second position which allows the bag to be put in communication with a sealed side opening for a syringe, or a third position which allows the bottle to be connected with said side opening. Another side opening of the flow diverter a flexible tube with hydrophobic filter is attached, terminating into one of said sterile sealed casings and serving as a pressure compensator.

Claims

1. A package comprising: a sterile bag filled with liquid diluent; a bottle having a pierceable cap to contain a medicinal or nutritional substance in powder, gel, or liquid form; a tube extending from the bag and ending with a coupling and perforation device disposed at the cap of the bottle; a flexible sterile sealed first casing housing the bag; a flexible sterile sealed second casing housing the bottle and the coupling and perforation device, wherein the first and second casings are spatially separated by a distance, and the tube has a middle portion extending between the first casing and the second casing; an adjustable flow diverter disposed at the middle portion of the tube, wherein the flow diverter is configured to be adjusted to: a first position wherein the flow diverter impedes communication between the bottle and the bag, a second position wherein the flow diverter allows the bag to be in communication with a first side opening of the flow diverter, and the first side opening includes an openable and hermetically sealable cap for receiving a syringe, and a third position wherein the flow diverter allows the bottle to be in communication with the first side opening of the flow diverter; and a pressure compensator including a flexible tube with a hydrophobic filter, wherein the flexible tube of the pressure compensator is connected to a second side opening of the flow diverter and terminates in the first casing or the second casing.

2. The package according to claim 1, wherein said flow diverter includes a multi-way stopcock.

3. The package according to claim 1, wherein the coupling and perforation device has flaps configured to be coupled to the cap of the bottle and a perforation tip configured to pierce the cap of the bottle after the cap has been coupled to the flaps and pressure has been exerted on an outer wall of the second casing to bring the bottle closer to the bag in an axial direction along the tube.

4. The package according to claim 1, wherein the second casing includes a tube connector configured to deliver a mixture of ozone and oxygen into the second casing.

5. The package according to claim 1, wherein between the middle portion of the tube and the coupling and perforation device, the tube includes a final portion housing a frangible closure.

6. The package according to claim 1, wherein the tube includes an initial portion extending from an end of the first casing and terminating into the bag, and the initial portion of the tube houses a frangible closure.

Description

DESCRIPTION OF THE DRAWINGS

(1) The features of this invention will become apparent from the following detailed description of an embodiment of the invention with reference to the appended drawings, provided purely by way of a non-limited example, in which:

(2) FIG. 1 illustrates the sterile and sealed package according to the invention and ready for use;

(3) FIGS. 2-5 show the same package during the withdrawal, mixing and reconstitution procedures carried out by means of a syringe;

(4) FIG. 6 shows the package once the procedures are completed;

(5) FIG. 7 is a sectional view of one end of the tube with hydrophobic filter serving as a pressure compensator, on a magnified scale.

DETAILED DESCRIPTION OF THE INVENTION

(6) FIG. 1 shows two different casings 1 and 2, both sterile and sealed, that are aligned but distanced.

(7) The lower or first casing 1 houses a flexible sterile bag 3 filled with a suitable liquid diluent and equipped with a flexible input tube 5 and a flexible output tube 6, both provided with caps 7 and 8.

(8) The upper or second casing 2 accommodates a bottle 9 with a medicinal or nutritional substance 10 in powder, gel or other liquid material. The bottle is normally sealed with a cap 26. The cap 26 is of the type described in EP 2867132 A1 and can be opened by perforation with a syringe, luer or other piercing device, and is automatically airtight sealable once the perforation device is removed. The second casing 2 is also provided with a tube connector 11 with an airtight open/close cap 27 of the type described in EP 2867132 A1. The tube connector 11 can be used to deliver a mixture of ozone or other sterilizing gas and oxygen into the second casing 2.

(9) The bag 3 and the bottle 9 are connected by a flexible tube 12, which consists of an initial section 51 extending from the bag 3 and out of the first casing 1 and including a frangible closure 50 of a known type, a middle portion 13 connecting casing 1 to casing 2, and a final portion 14 accommodated inside the second casing 2 and comprising a frangible closure 15 of a known type, and eventually ends with a coupling and perforation device 16 of the type described in EP 2962676 A1. Said coupling and perforation device is equipped with flaps 17 that can be coupled to the cap 26 of the bottle 9, and a perforation tip 28 to pierce the cap 26 of the bottle 9 after said cap has been coupled to the flaps 17 and a further axial movement has been made through pressure exerted on the outer walls of the second casing 2 in order to bring the bottle 9 closer to the bag 3, as described in further detail in EP 2962676 A1. For the sake of simplicity, the bottle 9 in FIG. 1 is already perforated and in a coupling position, but the frangible element 15 is still shown in a closed position.

(10) The middle portion 13 of the flexible tube 12, located between the casings 1 and 2, comprises a flow diverter 18, by way of example a 4-way stopcock, in which a side opening 19 is closed with a cap 20 that can be perforated with the luer 21 (with or without needle) of a syringe 22 with plunger 23 and automatically sealed once the luer 21 is removed. Another side opening 41 of the flow diverter 18 is connected to a flexible tube 42 with hydrophobic filter 43 (FIG. 7) ending into one or the other of the casings 1 and 2, as shown in FIG. 1 with a continuous and dash-dotted line respectively. For the sake of simplicity and purely by way of example, FIGS. 2-6 illustrate only a tentative insertion of the tube 22 into the first casing 1 of the bag 3.

(11) FIG. 1 shows the flow diverter 18 in a position where both the tube 12 and the side opening 19 are completely closed.

(12) In order to trigger the reconstitution of the drug or nutrient inside the bag 3, the flow diverter 18 is to be adjusted to the position shown in FIG. 2, thus putting in communication the bag and the side opening 19, and then the luer 21 is inserted in the cap 20 in order to perforate it. Once the frangible closure 50 is broken, the syringe plunger 23, which is initially in a fully forward position, is pulled backwards to withdraw the desired quantity of diluent 4 from the bag 3.

(13) The flow diverter 18 is then rotated up to the position shown in FIG. 3, thus enabling communication between the portion of tube 14 and the side opening 19 with the luer 21 inserted. By breaking the frangible element 15 and pushing forwards the plunger 23 of the syringe 22, the amount of diluent which was previously drawn up can be transferred into the bottle 3, where said diluent is mixed with the medicinal or nutritional substance 10 contained therein and thus forming a mixture 24. At this stage, the flexible tube 42 with hydrophobic filter 43 serves as a pressure compensator terminating into a sterile casing, avoiding any possible toxic contamination for both the professional handling the package and the syringe and the patient receiving the fluid mixed substance.

(14) By pulling backwards the plunger 23 as in FIG. 4, the desired quantity of mixture 24 is sucked in the syringe 22, which mixture—once the flow diverter 18 is turned into the position shown in FIG. 5 (same as FIG. 2)—can be delivered into the bag 3 by pushing forwards the plunger 23 and thus creating a drug or nutrient 25 with the desired dosing. Also at this stage, the flexible tube 42 with hydrophobic filter 43 serves as a pressure compensator terminating into a sterile casing.

(15) The flow diverter 18 is eventually adjusted as shown in FIG. 6, while the luer 21 of the syringe 22 is still inside the cap 20.

(16) The process of dosed reconstitution of the drug or nutrient is complete and the cap 8 can be opened (FIG. 6) in order to supply said drug or nutrient to the patient.