DE202016000643U1 - Multi-way tap for medical fluids - Google Patents

Abstract

Multiway tap (10) for medical fluids with at least one base body (12) with at least two separate fluid channels (14, 16, 18), with at least two connections (20, 22, 24), at least one sealing disc (36), with at least one Connecting channel (56) and with at least one Andruckscheibenelement which presses the sealing disc (36) in the mounted state sealingly against the base body (12), wherein the terminals (20, 22, 24) to a respective fluid channel (14, 16, 18) in Connect base body (12), and wherein for the rotation of the connecting channel, the sealing disc (36) and / or the Andruckscheibenelement relative to the base body (12) is rotatable or are such that in at least a first position, all terminals (20, 22, 24) through the connecting channel (56) are interconnected and that in an at least second position connecting channel all terminals (20, 22, 24) are separated from each other.

Description

The present invention relates to a multiway tap for medical fluids.

Three-way valves for medical fluids or fluid systems are already known from the prior art, by means of which several lines, by means of which medical fluids, such as infusion solutions or medication solutions are supplied to a patient, in particular via an intravenous access.

Such taps are for example in the WO 2014/170379 A1 , of the DE 10 2014 100 324 A1 or the DE 10 2009 004 461 A1 described.

It concerns the DE 10 2014 100 324 A1 a filling device of a fluid control system of an extracorporeal blood treatment device, which has, inter alia, as a fluid barrier means a 3-way stopcock.

The DE 10 2009 004 461 A1 relates to an infusion set with an integrated 3-way stopcock for infusion preparation and injection. With this infusion set a contamination-free liquid transfer should be possible.

From the WO 2014/170379 A1 a recirculation device of an extracorporeal blood treatment device with a universal medical fluid container is known, wherein the recirculation device has a 3-way switch, which is designed as a 3-way stopcock.

It is the object of the present invention to develop a multi-way cock for medical fluids of the type mentioned in an advantageous manner, in particular to the effect that this is simpler and moreover cheaper to produce and at the same time has an improved seal against liquid leakage from the multi-way valve.

This object is achieved by a multi-way cock with the features of claim 1. Thereafter, it is provided that a multi-way valve for medical fluids with a body with at least two separate fluid channels, with at least two terminals, a sealing washer, with a connecting channel and a Andruckscheibenelement is provided, which presses the sealing disc in the assembled state sealingly against the base body, wherein the terminals connect to a respective fluid channel in the base body, and wherein the rotation of the connecting channel, the sealing disc and / or the Andruckscheibenelement is rotatable relative to the base body or are such that in a first position, all the connections are connected to one another by the connection channel and that in at least one second position, all connections are separated from one another.

The invention is based on the idea to provide a multi-way cock for medical fluids with a completely new sealing principle. The use of a sealing disc makes it possible to implement an axial sealing principle in connection with a multi-way valve for medical fluids and thus to ensure a simpler and more reliable seal of a multi-way valve and in particular the connections of the multi-way valve from each other.

By using such a sealing principle, it is further possible to allow a variable arrangement of inputs and outputs while maintaining the 45 ° positioning positions. Application and patient safety is ensured by the simple and robust design. By pressing the sealing disc to a base body, in which the free ends of the fluid channels, which are connected to the connections of the multi-way valve can be sealed, and this according to the desired position or opening state of the multi-way valve, it is possible with a comparatively simple design geometric components to provide a multi-way valve for medical fluids.

Moreover, it is possible that at least three connections are provided, wherein the sealing disc and / or the Andruckscheibenelement is rotatable relative to the base body or are such that in at least a third position, a first pair of terminals and at least a fourth position, a second pair of terminals the connecting channel are interconnected. Such a configuration of a multi-way cock, it is possible, for example, merge two or more lines on a single line and thereby durchzuschalten by appropriate rotation of the multi-way tap the lines accordingly. Thus, it becomes possible to disconnect one line while passing another line or vice versa. At the same time, however, it is also possible to open both lines and feed them into the corresponding output line.

It is also possible that, with the exception of the second position, a rotation of the sealing disc and / or the Andruckscheibenelements from one of the positions leads to an eighth twist to a rotation of the connecting channel, in which all terminals are separated from each other, in particular wherein each eighth-rotation is a Verrastungspunkt to Locking and fixing the position is provided.

This makes it possible to block the multi-way valve in total by a relatively small rotation, namely an eighth of a turn. In such a blocking position, which substantially corresponds to the second position, all lines are separated from each other.

Furthermore, it is conceivable that the Andruckscheibenelement and the sealing disc are connected to each other or that the Andruckscheibenelement and the sealing disc are designed as a component. This makes it possible to omit a component. This simplifies the construction of the multi-way tap.

Furthermore, it may be provided that, alternatively, the pressure disk element is designed as a separate pressure plate. This is particularly desirable if the pressure disk element and the sealing disk are to be made of different materials.

By a different choice of material, for example, the sealing property of the sealing disc and the sliding behavior of the sealing disc relative to other components of the multi-way valve can be positively influenced. This can be selected depending on the application.

The connecting channel can be embedded in the sealing disc.

Alternatively it can be provided that the connecting channel is embedded in the Andruckscheibenelement. Both embodiments are possible, it is also conceivable that a combined embodiment is selected.

It can be provided that the base body has a substantially round shape, in particular has a substantially round cylindrical shape. Such a shape allows a robust design of the body and beyond, for example, the possibility that the round shape allows a slight rotation of the individual components of the multi-way valve, namely the base body, the sealing washer and the pressure plate to each other.

It is particularly advantageous if the base body has a round-cylindrical shape, since in this way a certain stability and torsional stiffness can be achieved.

The connections of the multi-way tap can be designed as Luer connections. This is particularly advantageous because then existing hose connection systems can be used. There is thus a compatibility with existing tube sets or catheter connections or connections of intravenous accesses.

It is possible that a Aufklipselement is provided. It is conceivable, for example, to use such a Aufklipselement to thread the sealing disc and / or the Andruckscheibenelement or the pressure disk on the Aufklipselement. It is conceivable, for example, thread the sealing disc on the Aufklipselement and aufklipsen the pressure plate or the Andruckscheibenelement on the Aufklipselement such that it presses the sealing disc against the base body and thereby an axial sealing effect is achieved according to the axial sealing principle.

The Aufklipselement may be a Aufklipsdorn and / or a radially outer clamping rib.

The pressure plate may have at least one Andrückrippe. By means of the Andrückrippe a targeted and depending on the design of Andrückrippe even contact pressure of the gasket against the body can be made possible.

The Andrückrippe can be arranged at least partially radially encircling. By a radial circumferential arrangement of Andrückrippe it is possible to easily customize this. In addition, by a radially encircling structure of Andrückrippe also a radially encircling, uniform pressure distribution and pressure force of Andrückrippe on the sealing disc and thus the sealing disc against the body allows.

It is conceivable that a plurality of Andrückrippen are provided. As a result, the pressing or the contact pressure of the sealing disk against the base body or the pressure disk against the sealing disk and then the sealing disk against the base body can be improved.

Another rib may be arranged radially inwardly centrally.

This makes it possible to turn the Andrückrippe to the Aufklipsdorn and at the same time to allow easy and secure attachment of the pressure plate on the body. By clipping a simple installation is also possible. The fact that the Andrückrippe is arranged radially inwardly centrally, it is possible to ensure a secure sealing effect in the area where the sealing disc is threaded onto the Aufklipsdorn.

In particular, it can be provided that in the assembled state, the pressure rib can be clipped onto the clip-on element.

Furthermore, it can be provided that the pressure plate has a clamping rib which engages around an edge of a wall of the base body. This makes it possible to prevent the ingress of dirt into the gap between pressure plate and washer or in the space between pressure plate and body.

In addition, it can be provided that the connecting channel is arranged substantially only in a sector of the sealing disc. This makes it possible that the different positions, in which terminals are separated from each other or are interconnected, can be realized comparatively easily. The production of a sealing washer is thereby simplified.

Furthermore, it can be provided that the main body has a counter-plate, which is employed in the mounted state of the multi-way valve against the sealing disc and on which rotates the sealing disc. This makes it possible that a robust and easy to create structure with abutment function for the gasket in the body can be realized.

The free ends of the fluid channels can open in the counter-plate. This allows defined interfaces to the recessed into the gasket connecting channel and facilitates the training and production of the body.

Furthermore, it can be provided that the fluid channels extend on the side facing away from the sealing disc or in the counter-plate. As a result, a favorable spatial design and arrangement of the fluid channels is possible and beyond a simple production.

The main body may have a collar and define an insertion space for the sealing disc with the collar and the counter-plate. As a result, an axial and radial guidance for the sealing disc is made possible. This also facilitates the assembly of the multi-way tap.

The collar can form a radial guide for the pressure plate. This makes it possible to allow a defined rotational behavior of the pressure plate.

In particular, it is conceivable that a marking is provided for indicating the position of the multiway tap. As a result, the operator or patient can be made to check the position of the multi-way cock at a single glance and in particular to determine whether the multi-way valve is open or closed or which line of the multi-way valve is open or closed.

In addition, it is conceivable that a lid is provided which is mounted on the pressure plate in the assembled state of the multi-way tap and wherein the lid has a marking by means of which the position of the multi-way tap is displayed. In particular, it is indicated by the lid, whether the multi-way valve is in the first position, the second position, the third position or the fourth position. Further details and advantages of the invention will now be explained in more detail with reference to an embodiment shown in the drawing.

Show it

1 a schematic sectional view of an embodiment of a multi-way tap according to the invention;

2 a plan view of the multi-way valve according to 1 ;

3 a plan view of a first embodiment of a sealing washer for the multi-way valve according to 1 ;

4 a plan view of another embodiment of a sealing washer for the multi-way valve according to 1 ;

5a , b shows a further embodiment of a multiway tap according to the invention in a sectional view;

6a , b shows a further embodiment of a multiway tap according to the invention in a sectional view;

7a , b shows a further embodiment of a multiway tap according to the invention in a sectional view; and

8a , b is another plan view of a possible embodiment of a multi-way tap with an alternative lid shape.

1 shows a schematic sectional view of an embodiment of a multi-way tap according to the invention 10 ,

The multi-way tap 10 is a multi-way tap 10 for medical fluids, such as medical infusion solutions and drug-infused solutions.

The multi-way tap 10 has a basic body 12 on, which is made of plastic (medical grade).

The main body 12 has further three separate fluid channels 14 . 16 and 18 on and three connections 20 . 22 and 24 ,

The connection 20 stands with the fluid channel 14 in connection, the connection 22 with the fluid channel 16 and the connection 24 with the fluid channel 18 ,

The connections 22 and 24 are as Luer connectors with a protective cap 26 trained, whereas the connection 20 as Luer connection with a union nut 28 is trained.

The main body 12 points further in its center a Aufklipsdorn 30 on.

In addition, the body indicates 12 a counter plate 32 on, which is circular.

The counter plate 32 is inside the main body 12 , which is circular-cylindrical in shape circular and has a cylindrical outer wall 34 has arranged. The connections 20 . 22 and 24 are on the outside of the wall 34 arranged and integrally formed there.

The fluid channels 14 . 16 and 18 extend from the terminal 20 . 22 and 24 through the wall 34 through and run on one side of the counter-plate 32 , then through the counter-plate 32 pass.

It is provided that the free end of the fluid channel 14 that the connection 20 is assigned, in a radially outer region of the counter-plate 32 is arranged.

The free ends of the fluid channels 16 and 18 that the connections 22 and 24 are assigned lie in a radially inner region of the counter-plate 32 , namely adjacent to the Aufklipsdorn 30 ,

On the side of the counter plate 32 passing the fluid channels 14 . 16 and 18 is in the assembled state of the multi-way tap 10 a sealing washer 36 used on the clip-on spike 30 is threaded.

The sealing washer 36 can around the Aufklipsdorn 30 which is also in the center of the housing 12 and in the center of the gasket 36 is to be turned.

The sealing washer 36 is located in a fitting room 38 in the case 12 , where the insertion space 38 through the counter-plate 32 and a collar 40 passing through the outside wall 34 is defined.

The collar 40 thus forms a radial guide for the sealing disc 36 ,

The main body 12 thus has a counter-plate 32 on, in the assembled state of the multi-way tap 10 against the sealing washer 36 is employed and on the the sealing disc 36 rotates.

The sealing washer 36 is in the assembled state of the multi-way tap 10 between the counter plate 32 and a Andruckscheibenelement that as pressure plate 42 running, which is also chick 42 is called. The pressure plate 42 is also on the Aufklipsdorn 30 of the basic body 12 clipped and rotatably mounted on this rotatable.

The pressure plate 42 and the sealing washer 36 engage each other in such a way that a rotation of the pressure plate 42 also to a corresponding rotation of the sealing washer 36 leads.

The pressure plate 42 has in its radially inner region a circumferential Andruckrippe 44 on, by means of which the pressure plate 42 on the Anklipsdorn 30 is clipped on and this also a radially encircling locking lug 46 having. The pressure rib 44 is also tight against the gasket 36 hired. In the radially middle region of the sealing disc 36 is on the part of the pressure plate 42 another pressure rib 48 provided, which is also formed radially encircling.

In the radially outer region of the sealing disc 36 is a third pressure rib 50 on the side of the pressure plate 42 provided in the mounted state on the sealing disc 36 pushes and beyond radially from the collar 40 to be led.

In addition, the pressure plate has 42 a clamping rib 52 on, by means of which the collar 40 is encompassed.

The multi-way tap 10 continues to have a lid 54 on, with the lid 54 on the pressure plate 42 is arranged and a T-shaped here designation K indicating the position of the multi-way valve 10 has (see. 2 ).

In the gasket 36 is a connection channel 56 provided essentially only in one sector of the sealing disc 36 is arranged.

In addition, another sector of the gasket 36 provided, the connection channel is free and is dimensioned such that it in a position the free ends of the fluid channels 14 . 16 and 18 sealingly covered.

The function of the multi-way tap 10 can be described as follows: The pressure plate 42 can be adjusted in at least four positions, which are also designed as corresponding locking positions.

Here are all connections in a first position 20 . 22 and 24 through the connection channel 56 connected with each other.

In a second position are the connection 20 and the connection 24 interconnected and in a third position the connection 20 and the connection 22 ,

In addition, there is a fourth position in which the connectors 20 . 22 and 24 are separated from each other.

This so-called fourth position can be achieved by an eighth twist, for example, from the first, second or third position out.

Each eighth turn is a Verrastungspunkt provided for locking and fixing the respective position. However, this is not shown in detail in the figures.

The collar 40 serves as a radial guide for the pressure plate 42 and the sealing washer 36 , so that a twist around the clip pin 30 and the collar 40 is possible.

By the marking K on the lid 54 makes it possible to immediately and clearly recognize in which position the multi-way valve 10 located and what connections 20 . 22 and 24 connected to each other.

The marking on the lid 54 can also be read out automatically, for example by means of optical detection systems.

3 shows a plan view of a possible embodiment of a sealing washer 36 for the above described and in 1 and 2 shown multi-way tap 10 in which a connecting channel 56 is admitted.

The connection channel 56 is radially outward with respect to the center of the gasket 36 arranged and formed semicircular. Each offset in the 90 ° angle pointing radially inwards in the direction of the center are three connecting channel approaches 56a provided in the first, second, third and fourth positions corresponding to the fluid channels 14 . 16 respectively. 18 communicate or are unrelated.

4 shows a further embodiment of a sealing washer 36 ' for the above described and in 1 and 2 shown multi-way tap 10 in which the connection channel 56 ' is formed radially inwardly and the connecting channel approaches 56a ' radially outboard, are also arranged offset by 90 °, analogous to the embodiment according to 3 in the first, second, third and fourth positions corresponding to the fluid channels 14 . 16 or 18 or are not in communication.

5a shows a sectional view through another possible embodiment of a multi-way tap 110 ,

In this embodiment, the sealing disc 136 both in the counter plate 132 as well as in the pressure disk 142 locked.

Incidentally, the multi-way valve corresponds 110 in terms of structure and function as described above and in 1 and 2 shown multi-way tap 10 ,

5b shows this again in detail.

6a shows a sectional view of another embodiment of a multi-way tap according to the invention 210 ,

In this embodiment, the sealing disc 236 on a clip-on spike 230 Threaded and the pressure plate 242 is on the Aufklipsdorn 230 locked.

The clip-on spike 230 is integral to the body 212 molded or component of the body 212 ,

Incidentally, the multi-way valve corresponds 210 in terms of structure and function as described above and in 1 and 2 shown multi-way tap 10 ,

This is also in detail in 6b seen.

7a shows a further sectional view of another embodiment of a multi-way valve according to the invention 310 in which the Aufklipsdorn 330 Part of the pressure plate 342 is. Again, the gasket is 336 on the Aufklipsdorn 342 threaded.

Incidentally, the multi-way valve corresponds 310 in terms of structure and function described above and in 1 and 2 shown multi-way tap 10 ,

In detail, this is in 7b shown.

All embodiments according to 5a . 5b . 6a . 6b and 7a . 7b is common that the connection channel 156 . 256 respectively. 356 in the gasket 136 . 236 respectively. 336 is admitted.

In addition, all embodiments shown according to 5a . 5b . 6a . 6b and 7a . 7b no lid 54 on, as this according to the embodiment according to 1 the case is.

The 8a . 8b show a further possible embodiment of a multi-way tap according to the invention 410 ,

The multi-way tap 410 has essentially all the structural and functional features, such as the multi-way tap 10 according to 1 ,

However, here is the gasket, the pressure plate and the lid in a single Baueil 454 executed.

The lid 454 In addition, also recessed in the lid has the connecting channel 456 on.

Also visible are the connecting channel approaches 456a , where the design is approximately the connection channel design 56 ' according to 4 equivalent.

Furthermore, in the radially outer edge region of the lid 454 three curved recesses 458 provided, which allow a view of the edge of the main body of the multi-way tap.

The edge is as in the left area of 8a and 8b shown colored differently to form a label K, for example, three segments S1 with a lighter color (for example, yellow) and a segment S2 with a darker color (for example, blue) (or, for example, reversed or suitably suitable color combination).

Depending on the position are the connections, as well as in connection with 1 described, opened.

This is for example in 8b the case, because here are all connections with each other, which is directly apparent also by the fact that all bright segments S1 through the recesses 458 can be seen.

In 8a is just the top port 420 with the connection (drain from the multi-way tap) 424 connected.

The connection 422 is closed.

LIST OF REFERENCE NUMBERS

10

Selector valve

12

body

14

fluid channel

16

fluid channel

18

fluid channel

20

connection

22

connection

24

connection

26

protective cap

28

Nut

30

Aufklipsdorn

32

counterplate

34

cylindrical outer wall

36

sealing washer

38

insertion

40

collar

42

puck

44

pressure rib

46

locking lug

48

pressure rib

50

pressure rib

52

clamping rib

54

cover

56

connecting channel

56a

Connecting channel approach

36 '

sealing washer

56 '

connecting channel

56a '

Connection channel approaches

110

Selector valve

132

counterplate

136

sealing washer

142

puck

156

connecting channel

210

Selector valve

230

Aufklipsdorn

236

sealing washer

242

puck

256

connecting channel

310

Selector valve

330

Aufklipsdorn

336

sealing washer

342

puck

356

connecting channel

410

Selector valve

420

upper connection

422

connection

424

connection

454

cover

456

connecting channel

458

curved recess

K

Labelling

S1

segment

S2

segment

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2014/170379 A1 [0003, 0006]
• DE 102014100324 A1 [0003, 0004]
• DE 102009004461 A1 [0003, 0005]

Claims (25)

Multi-way tap ( 10 ) for medical fluids having at least one main body ( 12 ) with at least two separate fluid channels ( 14 . 16 . 18 ), with at least two connections ( 20 . 22 . 24 ), at least one sealing disc ( 36 ), with at least one connecting channel ( 56 ) and with at least one Andruckscheibenelement that the sealing disc ( 36 ) in the assembled state sealing against the base body ( 12 ), whereby the connections ( 20 . 22 . 24 ) to a respective fluid channel ( 14 . 16 . 18 ) in the main body ( 12 ), and wherein for the rotation of the connecting channel, the sealing disc ( 36 ) and / or the Andruckscheibenelement relative to the main body ( 12 ) is or are such that in at least a first position all connections ( 20 . 22 . 24 ) through the connecting channel ( 56 ) are connected to each other and that in an at least second position connecting channel all connections ( 20 . 22 . 24 ) are separated from each other. Multi-way tap ( 10 ) according to claim 1, characterized in that at least three connections ( 20 . 22 . 24 ) are provided, wherein the sealing disc ( 36 ) and / or the Andruckscheibenelement relative to the main body ( 12 ) is or are such that in at least a third position, a first pair of terminals ( 20 . 22 . 24 ) and in at least one fourth position, a second pair of ports ( 20 . 22 . 24 ) through the connecting channel ( 56 ) are interconnected. Multi-way tap ( 10 ) according to claim 1 or claim 2, characterized in that with the exception of the second position, a rotation of the sealing disc ( 36 ) and / or the Andruckscheibenelements from one of the positions by an eighth of a turn to a rotation of the connecting channel ( 56 ), where all connections ( 20 . 22 . 24 ) are separated from each other, in particular wherein each eighth rotation is provided a Verrastungspunkt for locking and fixing the position. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the Andruckscheibenelement and the sealing disc are connected to each other or that the Andruckscheibenelement and the sealing disc is designed as a component. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the Andruckscheibenelement is designed as a separate pressure plate. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the connecting channel ( 56 ) in the sealing disc ( 36 ) is admitted. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the connecting channel ( 56 ) is embedded in the Andruckscheibenelement. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the basic body ( 12 ) has a substantially round shape, in particular has a substantially round cylindrical shape. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the connections ( 20 . 22 . 24 ) Luer connectors are. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that at least one clip-on element is provided. Multi-way tap ( 10 ) according to claim 10, characterized in that the Aufklipselement is a Aufklipsdorn and / or a radially outer clamping rib. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the pressure disk ( 42 ) at least one pressure rib ( 44 ) having. Multi-way tap ( 10 ) according to claim 12, characterized in that the pressure rib ( 44 ) is arranged at least partially radially encircling. Multi-way tap ( 10 ) according to claim 12 or claim 13, characterized in that a plurality of pressure ribs ( 44 ) are provided. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that a pressure rib ( 44 ) is arranged radially inwardly centrally. Multi-way tap ( 10 ) according to claim 15, characterized in that in the assembled state, the pressure rib ( 44 ) on the Aufklipselement ( 30 ) is ausklipsbar. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the pressure disk ( 42 ) a clamping rib ( 52 ), by means of which an edge of the basic body ( 12 ) is encompassed. Multi-way tap ( 10 ) According to one of the preceding claims, characterized in that the connecting channel ( 56 ) substantially only in one sector of the sealing disc ( 36 ) is arranged. connecting channel Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the basic body ( 12 ) a counter plate ( 32 ), which in the assembled state of the multi-way tap ( 10 ) against the sealing disc ( 36 ) is employed. Multi-way tap ( 10 ) according to claim 19, characterized in that the free ends of the fluid channels ( 14 . 16 . 18 ) in the counter plate ( 32 ). Multi-way tap ( 10 ) according to claim 19 or claim 20, characterized in that the fluid channels ( 14 . 16 . 18 ) on the sealing disc ( 36 ) facing away from or in the counter-plate ( 32 ). Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the basic body ( 12 ) a collar ( 40 ) and that the basic body ( 12 ) with the collar ( 40 ) and the counter plate ( 32 ) an insertion space ( 38 ) for the sealing disc ( 36 ) Are defined. Multi-way tap ( 10 ) according to claim 15, characterized in that the collar ( 40 ) a radial guidance of the pressure plate ( 42 ). Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that the multi-way tap ( 10 ) continue a lid ( 54 ), wherein the lid ( 54 ) on the pressure plate ( 42 ) is arranged. Multi-way tap ( 10 ) according to one of the preceding claims, characterized in that a marking for indicating the position of the multi-way tap ( 10 ) is provided.

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