HK1191847B - Connecting device for connecting a first reservoir to a second reservoir - Google Patents

Description

The invention relates to a connecting device for connecting a first reservoir to a second reservoir as defined in claim 1.

Err1:Expecting ',' delimiter: line 1 column 101 (char 100)

For example, DE 199 30 791 A1 describes a needle adapter which can be used to connect a first reservoir to a second reservoir. The needle adapter has a hollow needle running at both ends, which can be used to pierce both a first reservoir and a second reservoir closure and establish a current connection between the two reservoirs. In US 6 022 339 A, a current connection is also provided by means of a hollow needle running at both ends. Hl needles are also used as a kind of actuator to open and close a separate valve (for example in the case of WO 96/273 A401 A795 A1 559 A3 371 A3 551 A3 751 A3 551 A3 751 A3 553 A3 751 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 A3 553 553 A3 553 553 A3 553 553 553 A3 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 553 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555 555

The problem underlying the present invention is to create a connection device which allows a connection between a first and a second reservoir as safely as possible and to establish a flow connection between the reservoirs with the largest possible flow cross-section.

This problem is solved by the connecting device with the characteristics of claim 1.

A connection device is therefore provided to connect a first to a second reservoir, with a first section for the arrangement, in particular the connection, of the first reservoir closed with a closure;a second section for the arrangement, in particular the connection, of the second reservoir;and a piercing element which, when the first reservoir is placed on the first section with a piercing, pierces the closure of the first reservoir, the piercing element has a channel and is movable (relative to the first and second sections) from a first position to a second position, whereby in the first position the channel of the piercing element is closed or closed and a flow connection between the first and second sections is blocked, while in the second position of the channel the piercing element is released or open and a flow connection between the first and second sections is possible.

The invention is further described by a connecting device for connecting a first to a second reservoir with a a first section for the positioning of the first reservoir closed by a latch; a second section for the positioning (in particular the connection) of the second reservoir; and a piercing element which, when the first reservoir is placed (in particular the connection) on the first section with a piercing piercing pierces the closure of the first reservoir, the piercing element (in relation to the first and second sections) can be moved from a first position to a second position, blocking in the first position a power connection between the first and second sections, while in the second position it allows a power connection between the first and second sections.

In particular, the punch element in the first position blocks a flow connection between the first section (or the first reservoir located in the first section) and the second reservoir if it is located in the second section, while in its second position it allows a flow connection between the first section or the first reservoir and the second reservoir. The punch element does not represent an actuator for opening and closing a separate valve body. Rather, the punch element itself or components of the punch element represent a valve body blocking or releasing a flow connection or a passage opening.

For example, the punch element is arranged and trained so that when the first reservoir is arranged on the first section, it moves from the first to the second position, so that after arranging the first reservoir, a flow connection is established between the first and second reservoir (if the second reservoir is arranged on the second section).

In particular, the puncture with which the puncture element pierces the first reservoir's closure when the first reservoir is placed on the connecting device is formed as a tip.

Err1:Expecting ',' delimiter: line 1 column 334 (char 333)

It is noted that it is quite possible that the first and/or second reservoirs may not be connected directly to the coupling device but may be connected by at least one other element and in particular be soluble attached to it, which will be discussed below.

If the first tank is placed in the first section of the coupling device along a direction of arrangement, e.g. moving in the direction of arrangement into the first section, the piercing of the piercing element penetrates the closure of the first tank.

Thus, when the first reservoir is placed, the piercing element is moved to the second position (opening position) in which it allows a flow connection between the two reservoirs. In particular, when the first reservoir is placed, the piercing element is moved to its second position (e.g. exclusively) due to the contact of the reservoir closure with the piercing element.

However, it is also possible that the punch may not initially penetrate the tank closure or only partially, but when the first tank is placed on the connecting device, the punch presses against the tank closure and the resulting punch moves towards the second position.

After the first reservoir has been placed on the connection device, the substance contained in the first reservoir (in particular in the form of a powder or a liquid) can be mixed (or dissolved) with the substance contained in the second reservoir (in particular in the form of a liquid).

The device of the invention allows, in particular, the safest and simplest possible connection of two medical containers, in particular one (as already mentioned) with a medical bag (e.g. an infusion, transfusion or food bag). Since the current connection to the second reservoir is not made via a second tip of the puncture element, but by moving the puncture element into an opening position by a type of valve, it is possible to achieve a greater flow cross section on the sides of the second section of the connecting device and thus a greater overall flow between the two reservoirs to allow a fast mixing process.

In particular, the punch shall be moved to the second position when the first reservoir is placed at the first section by placing it in a terminal position relative to the first section, the punch being so designed that it can be moved back to the first position when the first reservoir is moved away from the terminal position and the second section of the coupling device, e.g. by removing the first section.

The puncture element is therefore taken with the first reservoir in the opposite direction. As a result, for example, when the first reservoir is removed, the flow connection between the first and second sections of the connecting device is closed again, thus preventing the release of a substance from the second reservoir after the first reservoir has been removed or preventing the release of the substance as far as possible. To return the puncture element to its first position (the locking position), the first reservoir does not necessarily have to be completely removed from the first section of the connecting device. However, it is possible, for example, that the first reservoir of the final connecting device is moved only in a standby position, for example, a certain section of the connection is still under the first reservoir, but the first reservoir is already in a locking position, so that the flow connection between the first and the second reservoir is already pulled.

The punch is mounted in a passageway of the coupling device relative to the first and/or second sections, so that when the first tank is positioned (i.e. when there is mechanical contact between the first tank closure and the punch) it is moved relative to the first and/or second sections.

According to another variant of the invention, the punch element forms a channel through which, in the second position of the punch element, a current connection exists between the first and second sections of the connecting device, i.e. between the first and second reservoirs.

For example, the channel is formed by a hollow opening extending inside the piercing element, which runs from an entry opening in the area of its piercing element to at least one exit opening. In the first position of the piercing element, the peripheral section of the passage opening blocks the passage between the exit opening and the second section of the connecting device. The piercing element may be formed by a needle, the entry opening of which is formed in the front face of a pointed piercing element, so that the exit opening is inside the first reservoir after the first reservoir's closure is pierced. Thus, if the piercing element is in open position, the reservoir can be located in the direction of the first section above its second reservoir opening and finally in the direction of its second reservoir opening above the second reservoir opening.

The peripheral section of the passage opening adjacent to an outside edge of the piercing element does not have to cover the exit opening directly in the piercing element's locking position; rather, the exit opening of the piercing element may also be so designed that it is located in the piercing element's locking position (in the first position) on a side of the adjacent peripheral section of the passage opening facing the piercing element's piercing (i.e. the first reservoir), i.e. the peripheral section closest to the diameter of the passage opening does not cover the exit opening directly, but nevertheless prevents the entry of the first reservoir connecting sub-unit in the direction of the second section in the direction of the second reservoir.

In the second position of the punch, the exit opening is located on one side of the peripheral section of the passage opening adjacent to the punch (i.e. the first reservoir) facing the punch, so that the passage of a substance from the exit opening of the punch into the second section and the second reservoir is no longer blocked.

In one embodiment of the invention, the puncture element is formed as a body at least partially hollow, for example as a tube. The puncture element may be essentially hollow cylindrically formed, with the exit opening, for example, essentially radial. The exit opening is, for example, embedded in the mantle of a hollow body. The exit opening may extend over the perimeter of the puncture element, for example a hollow body, in sections. The end of the puncture element that is located at a distance from the austral end is specially closed, i.e. the front face of the puncture element that is penetrating the bottom is not wide. The puncture element is no longer conceivable, however, as is the case with other openings.

The invention may also be described in this way, in which the punch has an outlet and can be moved from a first position to a second position, wherein in the first position the punch's outlet is closed and a current connection between the first and second sections is blocked, while in the second position the punch's outlet is released or open and a current connection between the first and second sections is made possible.

It is noted that it is not necessary that the puncture element be in the form of a cannula, i.e. a channel in the form of a cavity. Rather, it is also conceivable that the channel through which a substance from the first section (from the first reservoir) can enter the second reservoir is shaped as a depression in the outside of the puncture element. In particular, the puncture element may be a massive (especially elongated) body with at least one user on its outside along the axis of the body through which the substance from the first section can enter the second section of the connecting device.

Blocking such a channel in the first position of the punch is achieved in particular by a peripheral section of the passage opening on a side of the nut facing the second section of the coupling device being close to the punch and thus preventing any substance from entering the second reservoir in the second section.

According to another design of the invention, the passage is bounded by an elastic material at least in the area of its perimeter section adjacent to the piercing element. For example, the elastic material is part of an elastic element placed on or in the second section of the connecting device, which forms an opening that is a sub-area of the passage. In particular, the channel in the first position of the piercing element is closed by the elastic element. In the design of the piercing element as a hollow body or a tube at least in one section, the exit opening of the channel is closed or covered by the elastic element.

In particular, a section of the elastic element forms the peripheral section of the passage opening adjacent to the piercing element, whereby in the first position of the piercing element the exit opening of the piercing element is covered by this section or the exit opening is on a side of the section of the elastic element facing the first section of the connecting device.

It is possible that the piercing element is arranged and constructed in such a way that it extends into or through the elastic element in the first position, i.e. it does not penetrate the elastic element in the second position (the open position) but already in the first position (the closed position). This, for example, achieves the smallest possible adjustment distance between the closed and the open position. Furthermore, the force required to move the piercing element is kept to a minimum, since the elastic element does not have to be pierced when the piercing element is held in the second position.

In particular, the elastic element is designed to be a type of membrane through which the puncture element extends, so that the peripheral section of the passage opening adjacent to the puncture element is formed by a sub-section of the elastic element which is lip-like on the outside of the puncture element. The puncture element in particular has an opening in the form of a groove in the membrane material which extends through the puncture element. For example, the elastic element has an opening (e.g. a middle) which has a slightly smaller diameter before the puncture element is passed out compared to the external diameter of the puncture element, so that the passage of the puncture element through the peripheral area depends on the pressure applied to the opening and on the tension applied to the element.

However, it is also possible that the membrane does not have an opening at first, but that the puncture element is pierced through the membrane, thus creating an opening in the membrane first.

According to another variant of the invention, the first section of the connecting device is shaped like a cup-shaped receptacle, i.e. the first section comprises a sidewall, e.g. essentially parallel to the possible direction of movement (or longitudinal direction) of the piercing element, and a floor area, which runs obliquely or vertically to the sidewall.

In particular, the opening in the elastic element, which may be in the form of a gap in the elastic element or may have been created by the piercing of the piercing element through the elastic element, constitutes a first sub-area of the piercing opening and the opening in the bottom of the first section constitutes a second sub-area which leaks with the first sub-area.

It should be noted that the conduction (stabilisation) of the piercing element can be achieved essentially through the opening in the ground of the first section, while the elastic element mainly performs a sealing function.

According to another embodiment of the invention, the piercing element has means to increase the friction between an outside of the piercing element and a section of the first reservoir closure which, after penetrating the piercing element's piercing, is attached to the outside of the piercing element.

Furthermore, it is possible that the means of increasing the friction may include a friction-increasing coating at least in part on the outside of the piercing element. For example, the means of increasing the friction, depending on the material of the first reservoir closure, are designed so that the friction between the closure and the outside of the piercing element is greater than the friction between the elastic element and the outside of the piercing element. This ensures that when the first reservoir is removed from the first section of the connection device, the piercing element is returned to its first position and the second reservoir is locked.

In another embodiment of the invention, the punch element has at least one drainage opening. In particular, the drainage opening is embedded in a mantle of a punch element at least partially hollow, preferably in a substantially hollow cylindrical punch element. In one design, the drainage opening in the punch element is arranged so that it is located in the second position of the punch element, in which a current connection between the first and second sections is possible, at least partially in an interior of a reservoir located in the first section. The arrangement of one or more openings in a punch element has the effect that, for example, in a first section, the reservoir can be held as the smallest positive residual, which is the fourth positive.

The piercing element may be in particular individually formed, for example, from a plastic material. The piercing element may also have a tip at its end, as described above, to facilitate the penetration of the first reservoir closure. At its other end, however, it is not particularly formed, and this end may have a larger outer diameter than the piercing element. The area of the larger outer diameter is located in the first position of the piercing element, e.g. in a passageway of the connecting device described above, and therein in particular in the area of an elastic element also described above, whereby the position of the peripheral section of the elastic element at the area of the larger outer diameter provides the best possible insulation between the piercing element and the elastic element.

The piercing element, as already mentioned above, has a particularly longitudinal, e.g. essentially cylindrical shape, whereby it is arranged in a movable way along its longitudinal axis. The invention is not, however, of course, fixed to a particular geometry of the piercing element. Rather, the piercing element may, for example, also have a cylindrical, triangular, cross- or star-shaped cross-section.

The invention also relates to an arrangement of a connecting device as described above and a first reservoir located at the first section of the connecting device and/or a second reservoir located at the second section of the connecting device.

The invention is further explained below by examples of execution in relation to the figures. Figure 1A, a cross-sectional view of a connecting device according to a first embodiment of the invention;Figure 1B, the connecting device from Figure 1A in a perspective view from a first perspective view;Figure 1C, the connecting device from Figure 1A in a perspective view from a second perspective view;Figure 2A, a cross-sectional view of the connecting device from Figure 1A with a first reservoir arranged at its first section;Figure 2B, the connecting device from Figure 2A in a first perspective view;Figure 2C, the connecting device from Figure 2A in a perspective view from a second perspective view;Figure 2D, the cross-sectional view of the connecting device from Figure 2A in a perspective view from a second perspective view;Figure 3A, the cross-sectional view of the connecting element from a perspective view;Figure 3A, the cross-sectional view of the connecting element from the perspective of the flow-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through-through

The connecting device of the invention shown in Figure 1A 1 has a first (upper) section 11 for the arrangement of a first reservoir (not shown in Figure 1A) in the form of a container of active substance and a second section 12 for the arrangement of a second reservoir (not shown) in the form of a bag, e.g. in the form of an infusion bag. The first and second sections 11, 12 are connected individually, i.e. made up of a single adapter part, for example, made of a plastic such as polypropylene or polycarbonate.

The connecting device 1 also has an elongated needle-shaped piercing element 2 and a needle-tip 21 piercing element 2 which allows the needle-shaped piercing to penetrate a closure of the medicine container when inserted into the first section 11 of the connecting device (see Figure 2A).

In addition, the hollow needle 2 is arranged in a passageway 3 of the connecting device so that it can be moved axially from a first position shown in Figure 1A to a second position (Figure 2A). In the first position, the hollow needle 2 blocks a flow connection between the first section 11 and the second section 12, i.e. the connecting device is closed, thus preventing, for example, the leakage of a second reservoir (or another substance in the second reservoir) already located before the placement of the active substance container in the second section 12 of the connecting device.

When the active substance container 5 is placed in the first section 11 of the coupling device 1 designed as a cup receptacle, the needle tip 21 presses against a closure 51 of the active substance container 5 or partially penetrates the closure 51.

The second position of the hollow needle 2 is determined by a plunger 63 of the second section 12 pressing the hollow needle against the plunger 63 by the movement of the active substance container 5 and moving the active substance container 5 further after the hollow needle has reached the system at the plunger 63, the hollow needle 2 will completely penetrate the closure 51 so that a current connection is established between the active substance container and the hollow needle.

It is noted that it is also possible that the hollow needle may completely penetrate the closure 51 of the active substance container before the hollow needle is attached to the adhesive 63, with a movement of the hollow needle into the second position, particularly due to friction between the outside of the hollow needle and the section of the closure 51 adjacent to the outside of the hollow needle.

In this second position, there is a flow connection between the first section 11 and the second section 12 so that via the hollow needle 2 active substance from the active substance container 5 can be carried to a bag in the second section 12 of the connector or vice versa a substance from a bag in the second section can be carried to the active substance container to dissolve, dilute or mix the active substance.

As mentioned, the first section 11 of the connector is cup-shaped, i.e. it has a sidewall 111 and a floor area 112 that is essentially perpendicular to the sidewall. The first section may have a docking position and an end position (activation position). Of course, the floor area does not necessarily have to be flat, but may also have a curvature.

The second section 12 of the coupling device 1 is essentially hollow cylindrical, with an elastic element in the form of a membrane 4 located in an intermediate area of the adapter part 100 between the first and second sections, e.g. clamped or connected to the adapter part 100 by a fabric thread. The membrane 4 has a central, flowing opening 41 with the opening 1121 of the first section 11 which is a second area of the passage opening 3. The entrance section 42 of the membrane 4 which is lip-like (cranked off from the rest of the membrane) and closely adjoins one outer side of the hole needle 2 forms a peripheral part of the exit opening 3.

The purpose of section 42 is to allow some clamping of the hollow needle 2 which, while not impeding its axial mobility in the passageway, can prevent the hollow needle from slipping unintentionally towards the second section 12 of the coupling device.

It is noted that the opening 41 in membrane 4 may have existed before the puncture element was placed as a gap in the membrane, but it is also possible that the membrane was initially continuously formed and the puncture element was punched through the membrane.

The hollow needle 2 has a channel, shaped as a hollow 22 which extends from an entry opening 211 at its tip 21 to two exit openings 23 radially opposite each other at the other end of the hollow needle.

Although the exit openings 23 shown in the illustrations 1A and 2A are essentially radial, i.e. perpendicular to the longitudinal direction of the hollow needle 2, it is also conceivable that additional or alternatively differently designed exit openings may be provided, for example those which extend predominantly along the main direction of the hollow needle 2.

The end 212 of hollow needle 2 which is offset from tip 21 also has a slightly larger outer diameter than the end 21 area or the hollow needle section located in opening 1121 of first section 11 respectively.

Err1:Expecting ',' delimiter: line 1 column 418 (char 417)

When the hollow needle 2 is moved to the second position when the active substance container 5 is inserted, as shown in Figure 2A, the outlet 22 enters the second section 12, i.e. it is located below (on one side of the needle tip 21 opposite) the adjacent peripheral section 42 of the membrane 4 so that the outlet 22 provides a current connection between the first and second sections 11, 12.

Since, as shown in Figure 2A, after the positioning of the active substance container 5, the tip 21 and thus the entry opening 211 of the hollow needle 2 has penetrated the closure 51 of the active substance container 5 and is located inside the active substance container 5, a current connection is made between the active substance container 5 and a bag (not shown) located in the second section 12 via the hollow needle 2.

The second reservoir, i.e. the non-shown medical bag, is located at the second section 12 by means of an additional element in the form of a connector 6 specified in the second section 12 of the connector 1 as shown in Figure 1A. This connector 6 has a wing-like outer end 61 at its opposite end to the connector 1 which is inserted into an opening in the bag and the bag can be connected (e.g. welded or glued) to the outer end 61 or to an area above the outer end. At the opposite end of the connector 61 the connector 6 has, for example, connector structures, e.g. connector structures which connect it to the second section 12 of the connector 1. Furthermore, the reverse direction of the bag is represented by a membrane which is also divisible between the reverse direction of the connector 6 and the front end of the connector 6.

In addition, the first section 11 of the connecting device has structures which allow the active substance container 5 to be soluble fixed to the first section or which prevent at least a slide upwards (i.e. opposite to the direction of insertion) These structures include protrusions 110 protruding inwards from the inside of the sidewall 111 and which, after insertion of the active substance container, can retract an edge of its neck. The active substance container 5 is pressed into the first section so that the edge of its neck is below the protrusion (end position). For example, the active substance container is pressed down until the neck (or head) is placed on the floor of the first section 112.

In addition, there are 110' protrusions at one edge of an opening 1111 of the first section 11 through which the active substance container 5 is inserted into the first section 11, whereby the active substance container 5 may be placed in a standby position at the first section 11 where the neck of the container (in particular a neck protrusion 52) is between these protrusions 110' and the protrusions 110 further down. In particular, in the standby position the hollow needle 21 is not yet fully pressed into its second position, so that the current connection to the second reservoir is still blocked.

The 110' projections can also be used to bring the first reservoir into standby after use (i.e. from the second position), by moving the first reservoir into standby to bring the piercing back into the first position, thus disconnecting the current between the first and second reservoirs.

In addition, provision may be made for the opening 1111 to be closed with a closure in the form of a membrane or film 7 to keep the connecting device as sterile as possible. Before the active substance container 5 is inserted, film 7 is removed. Film 7 is e.g. a metal or plastic film (e.g. aluminium or polypropylene).

The plug 63 which limits the longitudinal downward movement of the hollow needle 2 is provided by the connecting section 6 connected to the second section 12.

If the container of active substance used in the first section is moved upwards (against the direction of insertion or away from the second section 12), the needle will be carried upwards due to friction between the perforated closure 51 of the container and the outer surface of the needle 21, so that the needle 21 will return to the locking position if the container is moved far enough away from the second section 12, e.g. from the first section 11 (i.e. completely separated from the connecting device) or in standby position.

The conical section of the hollow needle 2 has, in particular, a collar (see Figures 3A to D) whose outer diameter is larger than the diameter of the opening 1121 of the floor area 112 of the first section 111, so that when the collar is removed from the second position, the collar will come to the edge of the opening 1121 in the case of the opening 1121 of the installation.

As shown in Figure 2D, the hollow needle 2 may have structures on its outer surface that increase friction between an outer section of the closure 51 of the active substance container 5 so that the friction to the adjacent part of the closure in the area of the increased friction area is greater than outside the increased friction area.

For example, the raised area of the hollow needle 2 outer face has a number of intersecting recesses 2100 or elevations. It is also conceivable that the outside face is additionally or alternatively only roughed or has a coating that has an increased coefficient of friction with the material of the closure 51 of the container compared to the outside of the hollow needle. In particular, the raised area of the hollow needle 2 outer face has a coefficient of friction that is greater than the coefficient of friction between the section of the hollow needle that lies in the second position of the hollow needle on the top of the 42nd elastic section, so that the end of the 5A 2 is removed from the top of the container and its first position is removed with the same effect as the end of the 5A 2 container.

The friction-enhancing structure or coating extends in particular only outside the area of the hollow needle 2 which is in contact with the peripheral section 42 of the elastic element 4 in its second position.

Figures 3A to 3D show the hollow needle 21 from Figures 1A and 2A in detail again. In particular, it is noticeable that the exit openings 23 are arranged in a conical sub-area 210 that tapers to the tip of the needle 21. The conical sub-area 210 extends between a first hollow cylindrical area 240 and a second hollow cylindrical area 250, which forms the second end 212 of the hollow needle 21 and has a larger outer diameter than the first hollow cylindrical area 240.

Between the conical region 210 and the second subregion 250 is a collar 255 with an even larger outer diameter than the second subregion 250 and which, in the first position of the hollow needle 2 (see Figure 1A), is inserted into the peripheral section 42 of the elastic element 4.

As shown in Figure 3B, the outlet holes 23 have at least an approximately rectangular cross-section in a cross-section along a plane parallel to the longitudinal axis of the hollow needle.

Figures 4A to 4C show a passage 2 with different embodiments of a vent 260 each. A vent 260 is a passage for the contents, e.g. a liquid, of the first reservoir to the second reservoir or vice versa. The vent 260 is embedded in the mantle of the passage 2. It is positioned between the inlet vent 211 and the outlet vent 23. It can have different shapes and/or sizes.

For example, Figure 4A shows an elongated opening 260 extending along the longitudinal axis of the piercing element 2. Figure 4B shows an elongated opening 260 extending across the longitudinal axis of the piercing element 2.

Finally, to illustrate the operation of the outlet 260s, Figures 5A and 5B show the connecting device 1 without a connected reservoir 5 and the passage element 2 in its first position in which the channel, here the exit opening 23 of the channel, is closed (Figure 5A) and with the reservoir 5 and the passage element 2 connected in its second position in which the channel, here the exit opening 23 of the channel, is opened or released (Figure 5B).They extend at least partially, preferably completely, into the vial's interior 5. The residue in vial 5 which is located below the entry 211 of the entry 2 could not drain from vial 5 and therefore could not be used without the 260 drainage openings. The 260 drainage openings allow the residue in the connected vial 5 to be kept as low as possible. The position of the drainage openings in vial 260 drainage element 2 is chosen so thatthe vents 260 are at least partially above the closure 51, preferably completely above the closure 51 and in particular the closure 51 closure.

List of reference marks

1 Connector2 Hollow needle3 Passage opening4Membrane5Chemical container6 Connecting part7 Foil11First section12Second section21Top 22Colour 23Exit opening41Opening42Ring section51Closing52Crossing61Breakers62End 63Closing100Adapter part110, 110'Prelude111Side walls112Floor area210conical area211Entrance opening212End240first section250Second section255Crust260Away opening1111Opening1121Opening floor area2100Deepening

Claims (14)

1. Connecting device for connecting a first reservoir in the form of a medicament container to a second reservoir, with

   - a first section (11) for arrangement of the first reservoir (5) closed with a seal (51);

   - a second section (12) for arrangement of the second reservoir; and

   - a piercing element (2) which, when the first reservoir (5) is arranged on the first section (11), penetrates the seal (51) of the first reservoir (5) with a piercing end (21), wherein the piercing element (2) has a channel and is movable from a first position to a second position, and, in the first position, the channel of the piercing element (2) is closed and a flow connection between the first section (11) and second section (12) is blocked, whereas, in the second position, the channel of the piercing element (2) is freed and a flow connection between the first section (11) and second section (12) is permitted,

   characterized in that the piercing element (2) is arranged movably, in a through-opening (3), relative to the first section (11) and second section (12).
2. Connecting device according to Claim 1, characterized in that the piercing element (2) is moved to the second position when the first reservoir (5) is arranged on the first section (11) such that it is brought to an end position relative to the first section (11), wherein the piercing element (2) is designed and arranged such that it can be moved back to the first position by movement of the first reservoir (5) from the end position and away from the second section (12) of the connecting device (1).
3. Connecting device according to Claim 1, characterized in that,

   - in the second position of the piercing element (2), a flow connection exists between the first section (11) and second section (12) of the connecting device (1) via the channel, wherein

   - in the first position of the piercing element (2), an edge section of the through-opening (3) bears on the piercing element (2) and blocks a flow connection between the first section (11) and second section (12) via the channel.
4. Connecting device according to Claim 3, characterized in that the channel is designed in the form of a cavity (22) which extends in the interior of the piercing element (2) and which runs from an inlet opening (211), located in the area of its piercing end (21), to at least one outlet opening (23).
5. Connecting device according to Claim 4, characterized in that the outlet opening (23) is arranged such that, in the first position of the piercing element (2), it is located on a side of the edge section of the through-opening (3) facing towards the piercing end (21) and, in the second position of the piercing element (2), it is located on a side of the edge section of the through-opening (3) facing away from the piercing end (21), in particular wherein the piercing element (2) is designed as a hollow body, preferably a substantially hollow cylinder, and the outlet opening (23) extends substantially radially, wherein the end of the piercing element (2) remote from the piercing end is designed closed.
6. Connecting device according to one of the preceding claims, characterized in that the channel is formed as a depression in an outer surface of the piercing element (2).
7. Connecting device according to one of Claims 1 to 6, characterized in that the through-opening (3) is delimited by an elastic element, at least in the area of its edge section that closes the channel of the piercing element (2) in the first position of the piercing element, in particular wherein the channel of the piercing element (2) is closed by the elastic element in the first position.
8. Connecting device according to Claim 7, characterized in that, in the first position, the piercing element (2) extends into the elastic element or through the elastic element.
9. Connecting device according to Claim 7 or 8 when referred back to Claim 4, characterized in that the edge section of the through-opening bearing on the piercing element (2) is formed by a partial section of the elastic element, wherein in the first position of the piercing element (2) the outlet opening (23) is closed by this partial section or the outlet opening (23) is located on a side of this partial section of the elastic element facing towards the first section (11) of the connecting device.
10. Connecting device according to Claim 8 or 9, characterized in that the elastic element is designed in the manner of a membrane (4), wherein the piercing element (2) runs through the membrane (4), and the partial section bearing on the piercing element (2) is formed by a partial section (42) of the membrane (4) that rests like a lip on the outer surface of the piercing element (2), in particular wherein the piercing element (2) runs through an opening formed as a recess in the membrane (4) or is pushed through an originally continuous section of the membrane (4).
11. Connecting device according to one of Claims 1 to 10, characterized in that the first section (11) is configured in the form of a cup-like receptacle, and a bottom (112) of the first section (11) has an opening (1121), which forms a partial area of the through-opening (3).
12. Connecting device according to one of the preceding claims, characterized in that the piercing element (2) has means for increasing a frictional force between an outer surface of the piercing element (2) and a section of the seal (51) of the first reservoir (5) which, after penetration of the piercing end (21) of the piercing element (2), bears on the outer surface of the piercing element (2), wherein the means for increasing the frictional force comprise friction-increasing structures in the outer surface of the piercing element (2), in particular a roughing of the outer surface, and/or a friction-increasing coating arranged on the outer surface of the piercing element, in particular wherein the connecting device has a limit stop (63), which defines the second position of the piercing element (2).
13. Connecting device according to one of the preceding claims, characterized in that the piercing element (2) has at least one discharge opening (260), in particular wherein the discharge opening (260) is formed in a jacket of a piercing element (2) designed at least in part as a hollow body, preferably in a substantially hollow cylindrical piercing element (2).
14. Connecting device according to one of the two preceding claims, characterized in that the discharge opening (260) is arranged in the piercing element (2) in such a way that, when the piercing element (2) is in the second position, in which a flow connection is permitted between the first section (11) and second section (12), said discharge opening (260) is located at least in part in an interior of a reservoir (5) arranged on the first section (11).