Administration system for administering a medical treatment liquid to a patient, equipped with a purge tube

Abstract

The delivery system (2) includes a valve (3) comprising a fluid inlet (4), a first fluid outlet (5), and a second fluid outlet (6), the first fluid outlet (5) being equipped with a connecting member (9) configured to be connected to a delivery extension (26); a purge line (11) having a first end (11.1) fluidically connected to the second fluid outlet (6) and a second end (11.2) configured to be fluidly connected to a recovery container (30); and a check valve (14) configured to allow fluid flow from the second fluid outlet (6) to the purge line (11) and to prevent fluid flow from the purge line (11) to the second fluid outlet (6). Figure 1

Description

Title of the invention: Administration system for administering a medical treatment liquid to a patient and equipped with a purge tube

[0001] The present invention relates to an administration system for administering a medical treatment liquid to a patient.

[0002] An administration system includes, in a known manner:

[0003] - a valve comprising a fluid inlet port, a first outlet port fluid and a second fluid outlet, the fluid inlet being equipped with a connection element configured to allow connection of a supply container, such as a syringe, to the fluid inlet, the first fluid outlet being equipped with a connection element configured to be connected to a delivery extension unit fluidically connected to a catheter, and

[0004] - a purge tube having a first end fluidically connected to the a second fluid outlet and a second end configured to be fluidically connected to a recovery container, such as a flexible recovery bag.

[0005] The method for using such an administration system comprises the following steps:

[0006] - connect a delivery extension to the first fluid outlet,

[0007] - connect the distal end of the delivery extension set to a catheter connected to a patient,

[0008] - connect a rinsing container, such as a rinsing syringe, containing a rinsing product, such as saline solution or glucose, to the tap's fluid inlet,

[0009] - positioning a manipulator belonging to the tap in a position in which the valve allows fluid to flow from the fluid inlet to the second fluid outlet,

[0010] - purge the tap by injecting a sufficient quantity of the product into it Rinse containing the contents of the rinsing container

[0011] - collect the rinsing product in a recovery container, such as a bag flexible recovery hose, connected to the second end of the purge tubing,

[0012] - disconnect the rinsing container,

[0013] - connect an administration container, such as an administration syringe, containing a medical treatment liquid at the tap's fluid inlet,

[0014] - position the manipulating member belonging to the tap in a position in which the valve allows a flow of fluid from the fluid inlet to the first fluid outlet, and

[0015] - inject the medical treatment fluid into the catheter using the container administration.

[0016] Upon discontinuation of a particular treatment for the patient, the operating procedure further comprises the following steps:

[0017] - disconnect the administration container,

[0018] - reconnect a rinsing container, such as a rinsing syringe, containing a rinsing product, such as saline solution or glucose, at the tap's fluid inlet,

[0019] - position the manipulating member belonging to the tap in a position in in which the valve allows fluid to flow from the fluid inlet to the second fluid outlet,

[0020] - purge the tap by injecting a sufficient quantity of the product into it Rinse containing the contents of the rinsing container

[0021] - collect the rinsing product in a recovery container, such as a bag flexible recovery hose, connected to the second end of the purge tubing, and

[0022] - disconnect the rinsing container.

[0023] The various purging steps mentioned above ensure effective cleaning of the tap, in preparation for further treatment of the patient with the same medical treatment fluid or another medical treatment fluid.

[0024] However, if the tap's handling member is accidentally positioned by a member of the hospital staff in a position in which the tap allows fluid to flow from the second fluid outlet to the first fluid outlet, some of the fluid contained in the purge tubing and / or in the recovery container is likely to flow into the extension tube and thus be administered to the patient, which may be harmful to the patient.

[0025] The present invention aims to remedy all or part of these drawbacks.

[0026] The technical problem underlying the invention therefore consists of providing an administration system that is simple in structure, reliable and economical.

[0027] To this end, the present invention relates to an administration system for administering a medical treatment liquid to a patient, comprising:

[0028] - a valve comprising a fluid inlet port, a first outlet port fluid and a second fluid outlet, the fluid inlet being equipped with a connection element configured to allow connection of a supply container, such as a syringe, to the fluid inlet, the first fluid outlet being equipped with a connection element configured to be connected to a delivery extension set intended to be fluidically connected to a catheter,

[0029] - a purge tube having a first end fluidically connected to the a second fluid outlet and a second end configured to be fluidically connected to a recovery container, such as a flexible recovery bag, and

[0030] - a non-return valve configured to allow fluid flow from the second fluid outlet to the purge tube and to prevent fluid flow from the purge tube to the second fluid outlet.

[0031] The presence of such a non-return valve avoids any risk of flow of part of the fluid contained in the purge tube and / or in the recovery container towards an extension connected to the first fluid outlet and also towards a supply container connected to the fluid inlet.

[0032] Thus, the administration system according to the present invention ensures reliable administration of a medical treatment liquid to a patient.

[0033] The administration system may also have one or more of the following characteristics, taken alone or in combination.

[0034] According to one embodiment of the invention, the check valve fluidly connects the second fluid outlet to the purge pipe.

[0035] According to one embodiment of the invention, the check valve is disposed between the second fluid outlet and the purge pipe.

[0036] According to one embodiment of the invention, the supply container is, for example, a syringe, a bottle, or an administration bag. Advantageously, the supply container comprises a male connection tip.

[0037] According to one embodiment of the invention, the check valve comprises a movable sealing element between a release position in which the sealing element allows fluid to flow from the second fluid outlet to the purge tube, and a sealing position in which the sealing element prevents fluid from flowing from the purge tube to the second fluid outlet.

[0038] According to one embodiment of the invention, the check valve includes a flow passage connecting the second fluid outlet to the purge tube, the sealing member being configured to release the flow passage when the sealing member is in the release position, and being configured to close the flow passage when the sealing member is in the closing position.

[0039] According to one embodiment of the invention, the check valve comprises a first fixing part attached to the second fluid outlet and a second fixing part attached to the first end of the purge tube.

[0040] According to one embodiment of the invention, the second fastening part is equipped with a female luer-lock connection tip.

[0041] According to one embodiment of the invention, the first fastening part is equipped with a male luer connection tip.

[0042] According to one embodiment of the invention, the administration system further comprises a connection device connected to the second end of the purge tubing and configured to fluidly connect the second end of the purge tubing to the recovery container, the connection device comprising a deformable or movable sealing element between a first position in which the sealing element prevents fluid flow through the connection device, and a second position in which the sealing element allows fluid flow through the connection device, the sealing element being configured to be deformed or moved into the second position when connecting the recovery container to the connection device.

[0043] According to one embodiment of the invention, the connection device comprises a first connection end to which the recovery container is intended to be connected, and a second connection end, for example of the female luer-lock type, to which the second end of the purge tubing is connected.

[0044] According to one embodiment of the invention, the connecting element is a female luer-lock connecting element.

[0045] According to one embodiment of the invention, the connecting member is a male luer-lock connecting member.

[0046] According to one embodiment of the invention, the administration system includes a protective cap configured to cooperate with and at least partially cover the connection element equipping the fluid inlet channel.

[0047] According to one embodiment of the invention, the administration system includes an additional protective cap configured to cooperate with and at least partially cover the connecting member equipping the first fluid outlet.

[0048] According to one embodiment of the invention, the valve comprises a manipulator which is rotationally movable and which is configured to occupy a first position in which the fluid inlet is fluidly connected to the first fluid outlet, and a second position in which the fluid inlet is fluidly connected to the second fluid outlet.

[0049] According to one embodiment of the invention, the tap is a three-way tap.

[0050] According to one embodiment of the invention, the first end of the tubing of The purge is equipped with a first male luer-lock connection fitting, and the second end of the purge tubing is equipped with a second male luer-lock connection fitting.

[0051] In any case, the invention will be well understood with the aid of the following description in reference to the attached schematic drawings representing, by way of non-limiting example, one form of implementation of this administration system.

[0052] [fig.l] is a schematic view of an administration system according to the present invention.

[0053] [fig.2] is a schematic view of the administration system of figure 1 in a first usage configuration.

[0054] [fig.3] is a schematic view of the administration system of figure 1 in a second usage configuration.

[0055] [fig.4] is a schematic view of the administration system of figure 1 in a third usage configuration.

[0056] Figures 1 to 4 represent an administration system 2 for administering a medical treatment liquid to a patient.

[0057] The administration system 2 includes a three-way valve 3 comprising a fluid inlet 4, a first fluid outlet 5 and a second fluid outlet 6.

[0058] The valve 3 includes a manipulator 7 which is rotationally movable and which is configured to occupy a first position in which the fluid inlet 4 is fluidly connected to the first fluid outlet 5, and a second position in which the fluid inlet 4 is fluidly connected to the second fluid outlet 6.

[0059] The fluid inlet 4 is equipped with a connection element 8 configured to allow connection of a supply container, such as a rinsing container or an administration container, a bottle or an administration bag, to the fluid inlet 4. According to the embodiment shown in the figures, the connection element 8 is a female luer-lock connection element.

[0060] The first fluid outlet 5 is equipped with a connecting member 9 configured to be connected to a delivery extension set intended to be fluidically connected to a catheter. According to the embodiment shown in the figures, the connecting member 9 is a male Luer-lock connector.

[0061] The administration system 2 further comprises a purge tube 11 having a first end 11.1 fluidically connected to the second fluid outlet 6 and a second end 11.2 configured to be fluidly connected to a recovery container, such as a flexible recovery bag. According to the embodiment shown in the figures, the first end 11.1 of the purge tube 11 is equipped with a first male Luer-lock connector 12, and the second end 11.2 of the purge tube 11 is equipped with a second male Luer-lock connector 13.

[0062] The administration system 2 also includes a non-return valve 14 which is arranged between the second fluid outlet 6 and the purge pipe 11, and which is configured to allow fluid flow from the second fluid outlet 6 to the purge pipe 11 and to prevent fluid flow from the purge pipe 11 to the second fluid outlet 6.

[0063] The non-return valve 14 comprises a first fixing part 15 fixed to the second fluid outlet 6 and a second fixing part 16 fixed to the first end 11.1 of the purge pipe 11. According to the embodiment shown in the figures, the first fixing part 15 is equipped with a male luer connection 17, and the second fixing part 16 is equipped with a female luer-lock connection 18.

[0064] Advantageously, the check valve 14 comprises a flow passage (not visible in the figures) fluidically connecting the second fluid outlet 6 to the purge tube 11, and a shut-off member (not visible in the figures) movable between a release position in which the shut-off member releases the flow passage and allows fluid to flow from the second fluid outlet 6 to the purge tube 11, and a shut-off position in which the shut-off member closes the flow passage and prevents fluid from flowing from the purge tube 11 to the second fluid outlet 6.

[0065] The administration system 2 further includes a connection device 21 configured to fluidly connect the second end 11.2 of the purge tubing 11 to the recovery container.

[0066] The connection device 21 includes a deformable or movable sealing element (not visible in the figures) between a first position in which the sealing element prevents fluid flow through the connection device 21, and a second position in which the sealing element allows fluid flow through the connection device 21. The sealing element is more particularly configured to be deformed or moved into the second position when the recovery container is connected to the connection device 21.

[0067] The sealing element may, for example, be slotted and elastically deformable. The edges defining the slot in the sealing element are, for example, configured to move elastically apart when the recovery container is connected to the connection device 21, and, for example, when a portion of the connection fitting the recovery container is inserted into the connection device 21, so as to allow fluid to flow through the slot and thus through the connection device 21, and to move elastically closer together when the recovery container is disconnected from the connection device 21 so as to prevent fluid from flowing through the slot and thus through the connection device 21.

[0068] According to the embodiment shown in the figures, the connection device 21 comprises a first connection end 22.1 to which the recovery container is intended to be connected, and a second connection end 22.2, for example of the female luer-lock type, to which the second end 11.2 of the purge tubing 11 is connected.

[0069] The administration system 2 also includes a protective cap 24 configured to cooperate with and at least partially cover the connecting element 8 equipping the fluid inlet channel 4, and an additional protective cap 25 configured to cooperate with and at least partially cover the connecting element 9 equipping the first fluid outlet channel 5.

[0070] A method for using such an administration system 2 will now be described with reference to Figures 2 to 4. Such a method of use comprises the following steps:

[0071] - connect a delivery extender 26 to the first fluid outlet 5,

[0072] - connect the distal end of the delivery extension 26 to a connected catheter to a patient,

[0073] - connect a rinsing container 28, such as a rinsing syringe or a bag rinsing, containing a rinsing product, such as physiological saline or glucose, to the fluid inlet 4 of the tap 3 directly or via a connecting tube,

[0074] - position the manipulator 7 belonging to the tap 3 in the position in which the valve 3 allows fluid to flow from the fluid inlet channel 4 to the second fluid outlet channel 6,

[0075] - purge tap 3 by injecting a sufficient quantity of the product into it rinse water contained in the rinsing container 28,

[0076] - collect the rinsing product in a recovery container 30, such as a flexible recovery bag, connected to the second end 11.2 of the purge tubing 11,

[0077] - disconnect the rinsing container 28,

[0078] - connect a delivery container 32, such as a delivery syringe or an administration bag, containing a medical treatment fluid, connected to the fluid inlet 4 of the tap 3 directly or via a connecting tube,

[0079] - position the manipulator 7 belonging to the tap 3 in the position in which the valve 3 allows fluid to flow from the fluid inlet 4 to the first fluid outlet 5, and

[0080] - inject the medical treatment fluid into the catheter using the container administration 32.

[0081] Upon discontinuation of a particular treatment for the patient, the operating procedure further comprises the following steps:

[0082] - disconnect the administration container 32,

[0083] - reconnect a rinsing container 28, such as a rinsing syringe or a rinsing bag, containing a rinsing product, such as physiological saline or glucose, to the fluid inlet 4 of the tap 3,

[0084] - position the manipulator 7 belonging to the tap 3 in the position in which the valve 3 allows fluid to flow from the fluid inlet channel 4 to the second fluid outlet channel 6,

[0085] - purge tap 3 by injecting a sufficient quantity of the product into it rinse water contained in the rinsing container 28,

[0086] - collect the rinsing product in the recovery container 30 connected to the second end 11.2 of the purge tubing 11, and

[0087] - disconnect the rinsing container 28.

[0088] Given the presence of the non-return valve 14, any risk of leakage of some of the fluid contained in the purge tube 11 and / or in the recovery container 30 into a delivery extension 26 connected to the first fluid outlet 5 is avoided. Thus, the delivery system 2 according to the present invention ensures reliable administration of a medical treatment fluid to a patient.

[0089] As can be understood, the invention is not limited to the single form of execution of this administration system, described above by way of example, but on the contrary encompasses all variants of its embodiment.

Claims

Demands

1. A delivery system (2) for administering a medical treatment fluid to a patient, comprising: - a stopcock (3) including a fluid inlet (4), a first fluid outlet (5) and a second fluid outlet (6), the fluid inlet (4) being equipped with a connecting element (8) configured to allow connection of a supply container (28, 32) to the fluid inlet (4), the first fluid outlet (5) being equipped with a connecting member (9) configured to be connected to a delivery extension (26) intended to be fluidically connected to a catheter, the stopcock (3) having a manipulator member (7) which is rotatably movable and which is configured to occupy a first position in which the fluid inlet (4) is fluidly connected to the first fluid outlet (5),and a second position in which the fluid inlet (4) is fluidly connected to the second fluid outlet (6), - a purge pipe (11) having a first end (11.1) fluidly connected to the second fluid outlet (6) and a second end (11.2) configured to be fluidly connected to a recovery vessel (30), and - a check valve (14) configured to allow fluid flow from the second fluid outlet (6) to the purge pipe (11) and to prevent fluid flow from the purge pipe (11) to the second fluid outlet (6).

2. Administration system (2) according to claim 1, wherein the check valve (14) has a first fixing part (15) fixed to the second fluid outlet (6) and a second fixing part (16) fixed to the first end (11.1) of the purge tubing (11).

3. A delivery system (2) according to claim 1 or 2, further comprising a connection device (21) connected to the second end (11.2) of the purge line (11) and configured to fluidly connect the second end (11.2) of the purge line (11) to the recovery container (30), the connection device (21) having a deformable or movable sealing element between a first position in which the element a sealing element prevents fluid flow through the connecting device (21), and a second position in which the sealing element permits fluid flow through the connecting device (21), the sealing element being configured to be deformed or moved into the second position when the recovery container (30) is connected to the connecting device (21).

4. Administration system (2) according to claim 3, wherein the connection device comprises a first connection nozzle (22.1) to which the recovery container is intended to be connected, and a second connection nozzle (22.2) to which the second end (11.2) of the purge tubing (11) is connected.

5. Administration system (2) according to any one of claims 1 to 4, wherein the connecting element (8) is a female luer-lock connecting element.

6. Administration system (2) according to any one of claims 1 to 5, wherein the connecting member (9) is a male luer-lock connecting member.

7. Administration system (2) according to any one of claims 1 to 6, which includes a protective cap (24) configured to cooperate with and at least partially cover the connecting element (8) equipping the fluid inlet path (4).

8. Administration system (2) according to any one of claims 1 to 7, which includes an additional protective cap (25) configured to cooperate with and at least partially cover the connecting member (9) equipping the first fluid outlet (5).

9. Administration system (2) according to any one of claims 1 to 8, wherein the valve (3) is a three-way valve.

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