EP3183066A1

EP3183066A1 - Rotary dispenser for multiple cartridge

Info

Publication number: EP3183066A1
Application number: EP14755805.0A
Authority: EP
Inventors: Manuel FURRER; Beat Mathys
Original assignee: Medmix Systems AG
Current assignee: Medmix Systems AG
Priority date: 2014-08-19
Filing date: 2014-08-19
Publication date: 2017-06-28
Also published as: US20170225191A1; CN106660064A; WO2016026518A1

Abstract

A discharge device (1) serves the purpose of discharging at least two components from a multiple cartridge. The discharge device has a housing (3), a threaded rod (4) with an external thread and an advancing element (5) with an internal thread. The external thread of the threaded rod engages in the internal thread of the advancing element in such a way that the advancing element can be pushed forward in a distal direction by turning the threaded rod in relation to the housing. In the region of its distal end, the threaded rod has a taper (44). Formed on the housing, in the region of its distal end, is a holding element. The holding element has a laterally open clearance, and the threaded rod is pushed with its taper laterally into the clearance of the holding element in such a way that the holding element fixes the threaded rod axially in the housing, both in the distal direction and in a proximal direction opposite thereto.

Description

TITLE ürehdispenser for multiple cartridge

TECHNICAL FIELD The present invention relates to a dispensing device for a multiple cartridge or for at least two syringes to dispense at least two components from the multiple cartridge or syringes. Such a discharge device is also referred to below as a dispenser. STATE OF THE ART

In various technical fields discharge devices are used for discharging a flowable (fluid) product, for example in the medical or dental technology. It is known to store two or more components of such a product in separate syringes or in separate chambers of a multiple cartridge and to mix only on discharge to the finished product, since the finished product in the mixed state is not storable. Examples are medical and non-medical two-component adhesives, bone cements, etc. Discharge devices suitable for discharging and mixing two separately stored components are disclosed, for example, in documents WO 2007/041266, WO 2009/086644, WO 2008/009143 or WO 2009/086650 ,

DE 10 2010 045935 discloses a container which comprises a container body, a longitudinally movable piston and a lid with an outlet opening. Through the container extends a threaded spindle, which is connected to the lid and acts as a drive shaft. The threaded spindle has an external thread, which cooperates with an internal thread of the piston. The piston is rotatably mounted in the container body. Upon rotation of the spindle, the piston is in the direction of moves the lid, whereby the piston expels the contents of the container through the outlet opening. In this device, however, the product stored in the container is in contact with the threaded spindle. The container is also only suitable for dispensing a single component or a single finished product. If several components are to be discharged, several such containers are arranged side by side and driven separately.

DE 20 2006 011 103 discloses a dispenser for simultaneously dispensing two products, which has a housing with two cylinders formed therein, in which the products are located. In each case a piston is guided displaceably in the cylinders. To move the piston, a piston holder with an internal thread is attached to the piston, which meshes with an external thread of a threaded spindle. The threaded spindle is provided with a thumbwheel, which can be rotated relative to the housing, and thereby the piston holder, thus the piston, in the longitudinal direction of the rotary spindle shifts. A resulting increase in pressure in the cylinders opens valves, causing the products to be discharged. At its distal end, the threaded spindle has a spherical end region, which is inserted axially into a corresponding guide bush and axially fixed there in a locking manner. In particular, at high back pressure there is a risk that the threaded spindle is pressed out of the guide bush in the proximal direction, whereby the dispenser would be inoperable. In addition, this dispenser is only for single use and can not be used in particular with interchangeable containers.

PRESENTATION OF THE INVENTION

It is an object of the present invention to provide a discharge apparatus suitable for simultaneously discharging two or more components from a multiple cartridge or separate syringes, which has a simple structure and which functions reliably even when a high discharge pressure is applied.

This object is achieved with a discharge device for discharging components from a multiple cartridge or two or more syringes, as in claim 1 is specified. Further embodiments are given in the dependent claims.

Thus, a discharge device (a dispenser) for a multiple cartridge or for at least two syringes is provided to discharge at least two components from the multiple cartridge or syringes. The dispensing device includes a housing having a proximal end and a distal end, a threaded rod having a proximal end and a distal end, the threaded rod having an external thread and being rotatably disposed in the housing, and a feed element having a proximal end and a distal end on, wherein the advancing element has an internal thread and is arranged axially displaceable and rotationally fixed in the housing. The external thread of the threaded rod engages in the internal thread of the advancing element in such a way that the advancing element can be advanced in a distal direction by a rotation of the threaded rod relative to the housing (in this case, it is a "rotary dispenser".) The threaded rod points in the region of its distal end On the housing, in the region of its distal end, a holding element is formed, wherein the holding element has a laterally (laterally) open recess, and wherein the threaded rod is inserted laterally (laterally) with its taper into the recess of the holding element, in that the retaining element axially fixes the threaded rod in the housing both with respect to the distal direction and with respect to a proximal direction opposite thereto.

By the threaded rod is inserted with a taper laterally in a laterally open recess on the holding element, an axial fixation of the threaded rod with respect to two opposite directions is achieved in a very simple and elegant way. This type of connection can absorb relatively large axial forces, in particular in comparison with an axial latching connection. This can ensure that the dispenser works safely even with a large back pressure. This is particularly important when relatively tough, highly viscous components to be discharged. At the same time this type of fixation allows a simple structure and a simple manufacture and assembly of the dispenser. Under a syringe in the context of the present invention, a container is understood, which limits a reservoir for a fluid component, wherein in the reservoir, a piston (plug) is slidably disposed, and wherein the fluid component by displacement of the piston in a distal direction an outlet opening can be discharged from the container.

A multiple cartridge is understood to mean a container defining two or more reservoirs for each fluid component, wherein a respective piston (plug) is displaceably arranged in each of the reservoirs, and wherein the respective fluid component is displaced by displacement of the associated piston in a distal direction can be discharged from the relevant reservoir.

In a preferred embodiment, the feed element forms a double plunger with two parallel piston rods, which are connected proximally via a threaded bush, wherein the internal thread is formed in the threaded bushing. The piston rods extend on both sides of the threaded rod in the distal direction, so that one of the piston rods prevents the threaded rod from reaching out of the recess of the retaining element. In this way, a very simple lateral (lateral) fixation of the threaded rod can be achieved at its distal end. The retaining element and one of the piston rods interact here elegantly to ensure this lateral fixation.

The holding element can be designed as a bridge, which extends between two laterally opposite regions of the housing. By the holding element is connected like a bridge at two ends to the housing, undesirable bending and torsion effects of the holding element are avoided, and the holding member can absorb larger forces. At the distal end of the threaded rod, in a region located distally of the taper, a thickening is preferably formed. The thickening is arranged distally to the holding element and has a larger diameter than the recess. The thickening may be in the form of an end plate, ie in the form of a disk. But it can also take other forms, such as the shape of a hemisphere, etc.

In order to facilitate the operation of the dispenser, the discharge device may comprise a rotary member which is rotatably disposed at the proximal end of the housing and rotatably connected to the proximal end of the threaded rod. The rotary member is preferably adapted to be rotated with a hand of a user relative to the housing, so as to enable the threaded rod in a rotation relative to the housing. For this purpose, the rotary member may e.g. be formed drum-shaped. But it can also have a different shape. It can e.g. be provided with a rotary crank. Accordingly, the housing is preferably dimensioned such that it can be easily grasped and held with the other hand of the user.

In order to prevent a movement of the advancing element in the proximal direction beyond a proximal starting position, the rotary member may have at least one stop surface at an inner side opposite the proximal end of the housing, which limits a proximal movement of the advancing element relative to the housing.

The rotary member may be formed like a drum with a jacket wall. In this case, it is advantageous if the proximal end of the housing has a conically tapering in the proximal direction guide surface, and if the rotary member has on its jacket wall on the inside a complementary to the guide surface conical counter surface, which expands correspondingly in the distal direction. As a result, on the one hand the placement of the rotary member is facilitated on the housing, and on the other hand, a defined and self-centering rotation guide of the rotary member and thus also the threaded rod is ensured by the interaction of the guide surface with the counter surface.

At the distal end of the housing, at least one container receptacle for fastening the multiple cartridge or the syringes to the housing is preferably formed. The container receptacle can be designed such that the multiple cartridge or the syringes are laterally inserted into the container receptacle. But it is also conceivable that the multiple cartridge or the syringes are attached to the housing in a different manner, for example by a bayonet connection or by an axial latching connection, or even, that the multiple cartridge or the syringes are integrally formed with the housing.

The discharge device can be supplemented by the already mentioned multiple cartridge or at least two syringes. The multiple cartridge or syringes will then typically form at least two outlets. The advancing member is insertable into the multiple cartridge or syringes to discharge the components through the outlets from the multiple cartridge or syringes. In addition, the dispenser may include a mixing cap mounted over the outlets to mix the components exiting the outlets.

BRIEF DESCRIPTION OF THE DRAWINGS

Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:

Fig. 1 shows a discharge device with attached multiple cartridge and

Mixer;

FIG. 2 shows the discharge device of FIG. 1 with the multiple cartridge removed; FIG.

Fig. 3 is a perspective view of the housing of the discharge of the

FIG. 1;

Fig. 4 is a perspective view of the rotary drum of the discharge of the

FIG. 1;

5 is a perspective view of the threaded rod of the discharge of the

FIG. 1;

Fig. 6 is a perspective view of the advancing element of the discharge device of Fig. 1; a central longitudinal section through the discharge device of Figure 1 in an initial state; a cross-section through the discharge device of Figure 7 in the plane A- A of Figure 7; a cross-section through the discharge device of Figure 7 in the plane B- B of Figure 7; a perspective view of a discharge device with unfixed multiple cartridge and with axially displaced feed element; a central longitudinal section through the discharge device of Figure 10; a cross-section through the discharge device of Figure 11 in the plane CC of Figure 11; a cross section through the discharge device of Figure 11 in the plane DD of Figure 11;

DESCRIPTION OF PREFERRED STRUCTURES In FIGS. 1 to 13, a preferred embodiment of a discharge device 1 according to the invention is illustrated in various views. At the discharge device, a double cartridge 2 can be attached, which is provided with a mixing attachment 7.

A distal direction A is defined as the direction along which the pistons of the double cartridge move to discharge components from the dual cartridge 2 into the mixing head 7. The opposite direction is called the proximal direction. As the axial direction, both the distal and the proximal direction can be designated. As a lateral or lateral direction, each direction referred to, which is transverse to the axial direction.

As can be seen in particular from FIGS. 7 and 11, the discharge device 1 has a housing 3, a threaded rod 4, an advancing element in the form of a double plunger 5 and a rotary member in the form of a rotary drum 6. The housing 3 is shown in FIG. 3 alone; the threaded rod 4 is shown in FIG. 5 alone; the double plunger 5 is shown in FIG. 6 alone; and the rotary drum 6 is shown in FIG. 4 alone.

As will be explained in more detail below, the threaded rod 4 has an external thread and is rotatably arranged in the housing 3. The rotary drum 6 is also rotatably mounted on the housing 3 and rotatably connected to the threaded rod 4. The double plunger 5 has an internal thread, is rotatably disposed in the housing 3 and is in engagement with the external thread of the threaded rod 4. By turning the rotary drum 6, the threaded rod 4 is rotated. As a result of the threaded engagement with the double plunger 5, the double plunger 5 is thereby advanced axially in the distal direction A (see Fig. 1), whereby the components are discharged from the double cartridge 2.

As can be seen in particular in Figures 1 to 3, the housing 3 is elongated, has two opposing flattened side walls 38 and two opposite, rounded connecting portions 39, so that the housing 3 is good to handle with one hand. The housing 3 has a preferred circumference of about 8 to 20 cm, a preferred length of about 10 to 30 cm, a preferred width of about 3 to 6 cm, and a preferred height of about 1.5 to 3 cm. Here, the height is to be understood as meaning the distance between the flattened side walls 38, and the width means the distance between the rounded connecting regions 39.

As can be seen particularly well in FIG. 3, the housing 3 has a proximal end 31 and a distal end 32. In the region of its distal end 32, a holding element in the form of a bridge 33 is formed in the interior of the housing 3 to the distal direction A, along the entire height of the housing 3, extending therethrough. The bridge 33 is thus connected at its two ends to two opposite housing regions (here in each case with a region of a side wall 38). she is web-shaped and has a substantially U-shaped recess 34 in its center. This recess 34 is open laterally to one side.

For fixing the double cartridge 2 to the housing 3, a container receptacle 35 is formed at the distal end 32 of the housing 3. The container receptacle 35 is open at the side. It has a guide means in the form of a groove 36 which extends on the inside of the container receptacle 35 along its circumferential direction, and which cooperates with a at the proximal end 21 of the double cartridge 2 formed, complementary to the groove 36, guide means in the form of a flange 23 so in that the double cartridge 2 can be inserted laterally into the container receptacle 35 and held on the housing 3.

At its proximal end 31, the housing 3 has a widened end region 37, on the outer lateral surface of which a guide surface 310, which extends along the circumferential direction and tapers slightly conically in the proximal direction, is formed for the rotary drum 6.

A perspective view of the rotary drum 6 is shown in FIG. The rotary drum 6 has a cover wall 67 and a circumferential jacket wall 68. The circumferential jacket wall 68 has on its outer side 64 notches 65 along the axial direction, whereby a good gripping and controlled rotation of the rotary drum 6 is made possible.

On the inner side 61, the jacket wall 68 has a mating surface 66 extending along the circumferential direction, which is designed to be complementary to the guide surface 310 of the housing 3. This guide surface thus widens slightly conically in the distal direction. During assembly of the discharge device 1, the rotary drum 6 is slipped with its distal open end over the flared proximal end portion 37 of the housing 3, wherein the conical shape of the guide surface 310 and the mating surface 66 facilitate this interfitting. As soon as these two surfaces lie on one another, they form a self-centering rotary guide of the rotary drum 6 on the housing 3. As can be seen in FIGS. 7 and 11, the top wall 67 of the rotary drum 6 is provided with a central receiving opening 63 for the proximal end 41 of the threaded rod 4. In the area of this receiving opening 63, a socket 69 is also formed, which additionally receives the proximal end 41 of the threaded rod. The socket 69 and the receiving opening have a non-rotationally symmetrical (in particular a substantially square) cross-section.

To ensure good handling, the rotary drum preferably has a circumference of about 8-20 cm. The length of the rotary drum is preferably at least about 3 cm, so that it can be easily grasped by a user's hand.

As is apparent from FIG. 5, the threaded rod 4 has a proximal end 41 and a distal end 42. At the proximal end 41, a holding region 45 is formed with a non-rotationally symmetrical (in particular substantially square) cross section. The holder portion 45 is designed such that it can be positively received in the socket 69 and the receiving opening 63 of the rotary drum 6. As a result, a rotationally fixed connection between the rotary drum 6 and threaded rod 4 is ensured. At the distal end 42 of the threaded rod 4, a taper 44 is formed, to which a thickening in the form of a round end plate 43 adjoins in the distal direction. In the proximal direction adjoins the taper, a stop ring 46 and, subsequently, the distal end of the external thread. The external thread is slotted to save material and to ensure good mold release.

In the figure 6, the double tappet 5 is shown in perspective. The double plunger 5 forms two piston rods 57 and 58. A threaded bushing 53 is located centrally on the proximal end 51 of the double plunger 5 and connects the two piston rods 57 and 58 with each other. In the assembled state, the threaded rod 4 comes to rest between the two piston rods 57 and 58 of the double plunger 5. The length of the piston rods 57 and 58 corresponds approximately to the total length of the double cartridge. 2

The piston rods 57 and 58 have at their respective distal end 52 ram surfaces 54, which press at a discharge of the components from the double cartridge 2 arranged in the double cartridge 2 piston and thereby move it in the distal direction. The plunger surfaces 54 are semicircular in the present example. Immediately following the straight boundary edge 55 of the respective ram surface 54, an inclined surface 59 inclined to the axial direction is formed on the inner side of the respective piston rod 57, 58, to which the threaded rod 4 connects, to which an inner surface 56 extending parallel to the axial direction adjoins proximally. FIG. 7 shows a central longitudinal section through the discharge device 1 in an initial state. The taper 44 at the distal end of the threaded rod 4 is received in the recess 34 of the bridge 33 of the housing 3. The proximal end 41 of the threaded rod 4 is received in the threaded bushing 53 of the double pestle 5. There is still no rotation of the rotary drum 6, the double plunger 5 has therefore not been advanced in the axial direction by the discharge device 1. On its inner side 61, on the side facing the proximal end of the housing, stop structures 62 are formed on the top wall of the rotary drum 6 which extend distally into the rotary drum 6 and form abutment surfaces which provide proximal movement of the double tappet 5 relative to the housing 3 limit. In this embodiment, the abutment structures 62 are in the form of circular segments extending from the proximal end of the discharge device 1, along the axial direction A, into the rotary drum 6.

A cross section through the discharge device according to FIG. 7 in the plane AA of FIG. 7 is shown in FIG. FIG. 9 shows a cross section through the discharge device according to FIG. 7 in the plane BB of FIG. 7. The distal end of the threaded rod has been inserted with its taper 44 laterally into the recess 34 of the bridge 33 and is now received in this recess 34. The end plate 43 of the threaded rod 4 is located distally to the bridge 33, and the stop ring 46 of the threaded rod 4 is disposed proximal to the bridge 33. The end plate 43 and the stop ring 46 each have lateral dimensions which are greater than the inside width of the recess 34. This prevents the threaded rod 4 from being advanced in the distal direction and retracted in the proximal direction can. Overall, the threaded rod 4 is thus fixed axially in relation to the housing 3 both in the distal and in the proximal direction by the bridge 33. Viewed in the distal direction, the inclined surfaces 59 extend inwardly in the direction of the threaded rod 4 so that they laterally adjoin the end plate 43 laterally in the area of the end plate 43 (see FIGS. 7 and 9). As a result, fixed in the initial state, the inclined surfaces of the distal end of the threaded rod 4 in the lateral direction, without lying with a too large area on the threaded rod. In this way, the distal end of the threaded rod 4 in the initial state of Figures 7-9 fixed laterally almost free of play, without too great frictional forces arise during the first actuation of the discharge device 1. In particular, prevents in this way the double ram 5, that the threaded rod can slip laterally out of the recess 34.

Figure 10 shows a perspective view of the discharge device 1 and Figure 11 shows a central longitudinal section through the discharge device 1 of Figure 10 in an advanced state. It is now a rotation of the rotary drum 6 is carried out, and the double plunger 5 has been advanced in the axial direction through the discharge device 1. By rotating the rotary drum 6, the threaded rod 4 has rotated within the recess 34 of the bridge 33 and pushed the double plunger 5 due to the threaded engagement of the threaded bushing 53 with the threaded elements of the threaded rod 4 in the axial direction. In this case, the proximal end 51 of the double plunger 5 has moved away from the rotary drum 6 and its stop structures 62. The threaded rod 4 is still fixed by the received in the recess 34 of the bridge 33 taper 44 in the axial direction. FIG. 12 shows a cross section through the discharge device according to FIG. 11 in the plane CC of FIG. 11. FIG. 13 shows a cross section through the discharge device according to FIG. 11 in the plane DD of FIG. 11. Now the inner surfaces 56 of the double rod 5 are lateral close to the end plate 43 of the threaded rod 4, but no longer directly adjacent to the end plate 43 at. Although the distal end of the threaded rod 4 has thereby gained some lateral play, it is still prevented by the double tappet from leaving the recess 34. Upon rotation of the rotary drum 6, the threaded rod 4 therefore rotates axially and laterally fixed within the recess 34, and the double plunger 5 is due to the Threaded engagement of its Gewindebuehse 53 with the threaded elements of the threaded rod 4 precisely advanced in the distal direction.

If a double cartridge 2 is connected to the discharge device 1, the double plunger 5 protrudes into the advanced state of FIGS. 11-13 and presses on the pistons arranged in the double cartridge 2 in such a way that they are advanced in the distal direction and the components of the double cartridge 2 unsubscribe. A final state is achieved when the double plunger 5 is advanced in the axial direction so far that its proximal end 51 reaches the distal end 32 of the housing.

Instead of a double cartridge, two separate syringes can be used. The container receptacle 35 can be designed accordingly for receiving two syringes. Also, it is readily possible to modify the device so that three or more components can be discharged from a multiple cartridge having three or more reservoirs. For this purpose, the discharge element 5 can be designed as a multiple ram, in particular as a triple ram, in which parallel to the two piston rods 57 and 58 at least one further piston rod extends, which is also connected at its proximal end with the threaded bush 53. The housing 3 and in particular also the container receptacle 35 can be modified accordingly without further ado.

Also, it is easily possible to change the way in which the double or multiple cartridge or syringes are fixed to the housing. Thus, it is conceivable, for example, not to insert the cartridge or syringe laterally, but axially aufzustecken and to fix eg by locking lugs or by means of a bayonet lock. In principle, it is also possible to form the cartridge or the syringes as a non-detachable unit with the housing, in particular if only a single use of the dispenser is intended. The fixation of the threaded rod 4 in the housing 3 can also be effected by means of a holding element, which is configured differently than the bridge 33. While it is advantageous that the holding element forms a bridge between two opposite housing areas, the holding element can also be connected to the housing on only one side. The shape and the dimensions of the recess 34 may be selected so that the threaded rod 4 with its taper 44 can be introduced ("clicked") only by overcoming a certain minimum force in the recess 34 and accordingly only by overcoming a minimum force back from the In this way it can be prevented that the threaded rod 4 slips laterally out of the retaining element during assembly before the threaded rod 4 is secured against falling out by the double plunger 5. The axial displacement of the double plunger 5 can also take place by means of a rotary drum 6 Thus, it is conceivable, for example, to attach a rotary crank to the housing 3, which cooperates with the threaded rod 4 so that it likewise rotates with a rotation of the rotary crank.

LIST OF REFERENCE NUMBERS

1 discharge device multiple cartridge

1 proximal end

2 distal end

23 flange

24 discharge opening

3 housing

31 proximal end

32 distal end

33 bridge

34 recess

35 container receptacle

36 groove

37 expanded end region

38 side wall

39 connection area

310 leadership

4 threaded rod

41 proximal end

42 distal end

43 end plate

44 rejuvenation

45 mounting area

46 stop ring

5 double poppers

51 proximal end

52 distal end 3 threaded bush

54 ram surface

55 boundary edge

56 inner surface 57, 58 piston rod 59 inclined surface

6 rotary drum

61 inside

62 stop structure

63 receiving opening

64 outside

65 notch

66 mating surface

67 top wall

68 casing wall

69 socket

7 mixing attachment

Claims

A dispensing device (1) for a multiple cartridge (2) or for at least two syringes to dispense at least two components from the multiple cartridge (2) or syringes, comprising:

a housing (3) having a proximal end (31) and a distal end

(32);

a threaded rod (4) having a proximal end (41) and a distal end (42), the threaded rod (4) having an external thread and being rotatably disposed in the housing (3); and

a feed element (5) with a proximal end (51) and a distal end (52), wherein the feed element (5) has an internal thread and is axially displaceable and rotationally fixed in the housing (3);

wherein the external thread of the threaded rod (4) engages in the internal thread of the advancing element (5), that by a rotation of the threaded rod (4) relative to the housing (3) the advancing element (5) in a distal direction (A) can be advanced, and

wherein the threaded rod (4) has a taper (44) in the region of its distal end (42),

characterized in that on the housing (3) in the region of its distal end (32), a holding element (33) is formed, wherein the holding element (33) has a laterally open recess (34), and wherein the threaded rod (4) so laterally its taper (44) is inserted into the recess (34) of the holding element (33) that the holding element (33) the threaded rod (4) both in the distal direction (A) and with respect to a proximal opposite thereto axially in the housing ( 3) fixed.

2. Discharge device (1) according to claim 1, characterized in that the advancing element (5) forms a double plunger with two parallel piston rods (57, 58) which are connected proximally via a threaded bushing (53), wherein the internal thread in the threaded bushing (53) is formed, and wherein the piston rods (57, 58) on both sides of the threaded rod (4) extend in the distal direction, so that one of the piston rods (57, 58) prevents the threaded rod (4) from the recess (34) of the holding element

(33) to get out.

3. Discharge device according to claim 1 or 2, wherein the holding element (33) is designed as a bridge which extends between two opposite regions of the housing (3).

4. Discharge device (1) according to one of the preceding claims, characterized in that at the distal end (42) of the threaded rod (4) in a distally located from the taper (44) region a thickening (43) is formed, wherein the thickening ( 43) is arranged distally to the holding element (33), and wherein the thickening (43) has a larger diameter than the recess

(34).

5. Discharge device according to claim 4, characterized in that the thickening (43) is formed as an end plate.

6. Discharge device according to one of the preceding claims, which also has a rotary member (6) which is rotatably disposed at the proximal end (31) of the housing (3) and rotationally fixed to the proximal end (41) of the threaded rod (4) is connected.

7. Discharge device (1) according to claim 6, characterized in that the

Rotary member (6) at one of the proximal end (31) of the housing (3) opposite the inside (61) at least one stop surface (62) which limits a proximal movement of the feed element (5) relative to the housing (3).

8. Discharge device (1) according to claim 6 or 7, characterized in that the rotary member (6) is formed like a drum with a jacket wall (68), wherein the proximal end (31) of the housing (3) tapering in the proximal direction of a cone Guide surface (310), and wherein the Rotary member on its lateral wall on the inside a to guide surface (310) complementary conical counter surface (66).

9. Discharge device (1) according to one of the preceding claims, characterized in that at the distal end (32) of the housing (3) at least one container receptacle (35) for securing the multiple cartridge (2) or the syringes on the housing (3) is formed ,

10. Discharge device (1) according to claim 9, characterized in that the container receptacle (35) is designed such that the multiple cartridge (2) or the syringes laterally into the container receptacle (35) can be inserted.

11. Discharge device (1) according to one of the preceding claims, which also has a multiple cartridge (2) or at least two syringes, wherein the multiple cartridge (2) or the syringes form at least two outlets, wherein the advancing element (5) into the multiple cartridge (2 ) or in the syringes is inserted to discharge at least two components through the outlets from the multiple cartridge (2) or the syringe, and wherein the discharge device further comprises a mixing attachment (7) which is mounted over the outlets to those from the Outlets to exiting leaking components.