MXPA97007787A - A device for the departure of a liquid in dividi amounts - Google Patents

Abstract

The invention is directed to a device (V) for the output of a liquid (2>) in divided amounts (2 ') from a storage space (3), preferably in the form of a cartridge (K), on an outlet nozzle (4), preferably in the form of injection needle (5), and has for its object the application of exactly reproducible quantities from a reserve amount and its safe application. This is obtained by means of an intermediate reservoir that collects the quantity (2 ') divided from the storage space (3), whereby an output piston (19) for the intermediate reservoir with a penetration channel (18) is provided for fill the deposit (17) intermedia

Description

A DEVICE FOR THE DEPARTURE OF A LIQUID IN DIVIDED AMOUNTS DESCRIPTION OF THE INVENTION The invention is directed to a device for the delivery of a liquid in divided amounts out of a storage region, preferably in the form of a cartridge, onto an outlet nozzle, preferably in the form of a fixed injection needle. Injection media of this kind are well known, for example in the form of bar-shaped devices (US Pat. No. 2,591,457) or in the form of inoculation guns (US Pat. No. 2,472,116). Such devices comprise a spring hammer whose knocks are controllable. This spring hammer is disposed at the rear of a loading chamber in which a conventionally configured syringe can be installed. Depending on the distance of the blow of the spring hammer that can be adjusted by closing, the piston of the syringe is changed in the direction of the outlet nozzle. Such gradual departure eventually leads to a total evacuation. The syringe is usually discarded later. The object of the invention is to indicate a device of a type of chord that divides in a simple form reproducible quantities that leave a storage region and make them easy to apply. This object is realized by the invention mentioned in the claims. By means of such development, a device of the type according to a higher value of use is obtained. First of all this is achieved by means of an intermediate tank that collects the quantity divided from the storage room, whereby the intermediate tank comprises an outlet piston with a penetration channel to fill the intermediate tank. The amount to be drained is removed from the back of the piston to its front and strictly separated from the remaining reserves. The device of the invention no longer operates with a high effort over the entire filling length as is the case for known syringes. Accordingly, the same mechanical conditions are provided that can be optimally adjusted to the parameters of an injection / liquid needle. This also has the advantage that the reserve is kept ready in a less expensive package. The syringe that works in a certain way as well as the packing safely is too expensive to discard. It is more advantageous if the output piston is movable, together with the reservoir containing the storage region, when filling the intermediate reservoir and when the output piston cylinder forming the intermediate reservoir is interchangeable, together with this receiver, in the opposite direction.

This produces on the one hand a clear load hit and on the other an injection stroke in the opposite direction. In order to avoid a backward movement when the outlet pressure occurs, there is an advantageous measure that provides a stop valve between the storage region and the intermediate reservoir. It is also advantageous that the exchange movement occurs in the opposite direction and in successive phases. In this way, a feed stroke that carries the injection needle, respectively the hollow needle, to a guide position can be performed in addition to the injection stroke. The empty needle projects out of a cover. The injection blow occurs in an appropriate way only at the last moment, so that before that the phases run constantly. The release is very abrupt and is based on two cases on a release of a spring that is being properly loaded for the operation. Another advantage is that the cylinder continues in a sleeve that surrounds the reservoir. Both parts guide one another and give each other stability, so that it can be produced with thin walls. This leads to a reduction in weight and also allows a relatively compact structural configuration. The device of the invention can be configured literally with the dimensions of a cigarette pack. Regarding another advantageous position of the device parts, the invention proposes to dispose both syringes at the upper end, which means the end on the opposite side of the outlet nozzle, of the jacket / receiver and to be supported by an external envelope. The directed stable change, which respectively guides the receiver in the jacket is supported by the corresponding coaxial adjustment with respect to the receiver. In order to generate the reserves, in order to obtain respectively a possibility of simple filling, it is proposed that the external envelope comprises a charge input arranged concentrically with respect to the storage space of the receiver. An additional development of this is characterized in that the charge input is closed by a plug with which impeccable sterilization can be obtained. The plug can have a function that exceeds the corresponding closing function in the sense that it has a length that leads to an appropriate docking of the cartridge. The device can only be charged with the plugs. The cartridge can be easily placed. When the charge hit is made the flow connection is directed to the penetration channel, which shows the advantage that the berthing only occurs when the device is conditioned. The cartridge is suitably formed as a glass cartridge. The device is further characterized in that a common release button is provided to release the effect of the spring. This makes the operation of such injection means much easier, whereby it is particularly advantageous that the release button is formed on an arm of the release lever having two arms which is arranged in such a way that it directly releases a support of the sleeve, whereby the sleeve itself comprises a taper for the support of the receiver. Such a taper is driven in the released position by berthing in the structural support component of the sleeve. The structural support component is specifically a bar that is being loaded with the springs in the effective direction and arranged in the other arm of the release lever having two arms. The back of the bar forms the corresponding control bezel. Conditioned by the fact that the release lever extends parallel to the unit of the jacket / receiver in the outer casing of the device, the required length of the outer casing is thus exhausted impeccably. Another solution which is particularly suitable is characterized in that the sleeve can be moved back, together with the receiver, to the position referred to for tensioning the spring by means of a crank, preferably a protective cap which can be moved upwards from the nozzle, with which the shirt pulls together with the receiver to an intermediate position from which the receiver can be moved to the position subjected to the spring tension by operating an interchangeable closing lever. Alternatively to that, the charging stroke and the submission to the tension of the energy reservoir can also be effected by operating the interchangeable closing lever. By this means it is further operated in such a way that the interchangeable closing lever is disposed within a longitudinal groove of the sleeve, whereby the longitudinal groove forms a retainer for the driving movement at its upper edge. An additional mode is characterized in that the spring of the receiver is more tense than the spring of the jacket. Finally, an additional advantageous development is characterized in that a cover surrounds the nozzle and comprises an annular space for letting the wall of the handle, respectively the protective cover, enter, whereby the entry is limited by the retainer. In this way an injection means is obtained driven by a small handle that is easy to handle and very suitable for the effort of use. It can also be recharged very quickly and provides exactly reproducible quantities. The object of the invention is explained in detail by means of an example illustrated by means of a drawing. This sample: Figure 1: the device of the invention in a perspective view, closed and not yet loaded, Figure 2: the device in a view with its parts detached, changing the cartridge, the handle removed, as well as a view of the hollow needle with a separate hollow needle protection, Figure 3: the device in a vertical section view, closed and not loaded (showing the situation according to Figure 1), Figure 4: the loaded device, also in a vertical section view, Figure 5: a vertical section view through the handle removed, Figure 6: the device during, respectively after, the embodiment of the invention, and Figure 7: an enlargement of the stop valve disposed between the storage region and the intermediate tank. The device V formed as injection means comprises a substantially rectangular flat external cover 1 and serves for the output of exactly reproducible quantities 2 'of a liquid 2 which is ready in a storage space (region) 3. The liquid 2 can be a drug, as for example for the post-operative treatment of living beings. The application is made by an exit nozzle 4. Subsequently, an injection needle 5 supported by a so-called Luer connection 6 is arranged, the threaded screw flanks 7 of which engage in a threaded counterpart 8 in the upper section 9 of the V device.

The threaded counterpart 8 is formed on its internal side in the annular wall 10 surrounding the lower part of the conical outlet piece 4 which runs outwards. The injection needle 5, respectively the hollow needle, is arranged in a funnel-shaped base 11 in the form of a funnel in its internal part in a counter-conical shape corresponding to the wall of the outlet nozzle 4. By this means an impeccable closing seal can be generated. The degree of tapering is relatively low. An interchangeable cartridge K represents the storage space 3, by means of which this cartridge K is a so-called glass cartridge opening on its lower part and comprising a driving piston 12 moving with the rising outlet of the liquid 2 in the direction of an arrow 13 of the cartridge K and stops before an internal shoulder 14 of the cartridge K. The next outlet with respect to the exit direction is closed by a perforable sheet gasket 15 which is fixed by means of an edge cover 16 which consists of sheet metal. The central drilling section of such a liquid supply may be exposed in a known manner. The edge cap 16 is fixed at the lower edge of the arrow of a flanged part of the arrow 13. The quantity 2 'of the liquid 2, the quantity 2' to be separated and originating from the mentioned supply, it is supplied to the outlet nozzle 4 on an intermediate tank 1 7 by limiting the corresponding outlet volume, wherein the quantity 2 'is moved to the destination by means of the injection needle 5. A central penetration channel 18 forms the corresponding flow bridge. The intermediate tank 1 7 comprises an outlet piston 19 which is guided through a cylinder 20. The cylinder 20 forms the extension of the annular wall 10 of the outlet nozzle 4, whereby the extension is directed towards the inner side Of the cover. The penetration channel 18 extends over the entire length of the piston shaft 21 as well as over the section of the outlet piston 19 itself and then even continues in a central pipe socket 22. The pipe bushing 22 clearly emerges above the front surface of the outlet piston 19, the front surface facing the intermediate tank. In the closed uncharged position as well as in the injection position, the tubing bushing 22 tapering on the side wall in the direction of the free end projects into a corresponding tip recess section 4 of the nozzle 4 of departure. In the injection position the separated amount 2"is thus drained completely out of the intermediate reservoir 1 7, even more so because the front surface of the outlet piston 19 has, in the intermediate section of the cylindrical section of the cylinder 20 in the direction of the pointed section, a shape 4"appropriate corresponding to the shoulder.

The end section of the storage space side of the piston arrow 21 comprises a screw sleeve 23. The external screw thread of the screw sleeve 23 engages in an appropriate internal screw thread of a cup-shaped receiver 24, the cup cavity 25 of which can, as already mentioned, be used as a storage space 3 in the form directly by placing it in a cartridge K or indirectly in a corresponding manner, whereby precautions are taken in the storage space 3 for an impeccable and hygienic rise of the liquid 2. For the flow connection to the penetration channel 18 a bottom-forming transverse wall 26 of the receiver 24 is punctured in the center section. The transverse wall 26 separates the vessel cavity 25 in a larger space on the side of the reservoirs and a shorter space on the side of the outlet nozzle. The screw sleeve 23 is arranged in a shorter space. The transverse wall 26 leaves open a connector channel 27. Its section protruding into the vessel cavity 25 being disposed on the side of the reservoirs is realized as a pointed hollow needle 28 which is a part of a counterpart trailing device from which it is above the perforable sheet gasket 1 5. mentioned. The perforation position of the edge cap 16 being correspondingly open in the center section is clearly shown in the drawing.

On the side of the intermediate tank the transverse wall 26 continues in a cylindrical projection 29 (see Figure 7) ending with a semi-spherical dome 30 that is spaced from the edge. The end of the connector channel 27 runs in the zenith of the dome 30. The dome 30 carries a correspondingly domed wall section 31 which forms a stop valve 32. Hereby, a slot valve is meant. The edge of the dome-shaped domed wall section 31 rests on a hat-shaped insert 33 between the gradually domed front surface of the screw sleeve 23 and the projection / dome unit 29/30 which forms a counter profile. The gasket of the receiver is measured accordingly. The sealing insert 33 consists of rubber, respectively elastic rubber material. The sides of the screw cap, in front of the wall section are left free. The outlet piston 19 consists of the same material mentioned above. The output piston 19 is arranged correspondingly on a fungiform projection of the piston arrow 21 and shows the usual piston rings. The intermediate reservoir 17 is loaded by a displacement of the outlet piston 19 in the direction of the storage space 3 such that a negative pressure is generated in the cylinder 20, the negative pressure leading to the admission of the liquid 2 on the bridge 27 , 18, 22 flow. The edge of the groove of the wall section 31 may, depending on the opening, emerge slightly from the dome 30 due to the concave cavity 23 'fitted to the shape and therefore hemispherical of the cap 23 of the screw, the cavity 23' also functioning as an intermediate camera. An unwanted air suction is prevented on the outlet nozzle 4 by a sealing protection cap 34, which contains a sealing body 35 (see Figure 3) that seals the open end of the corresponding channel section. The protective cover 34 functions concurrently as a loading handle of the device V. It can (H) be coupled with the cylinder 20 on the Luer connection 6. It also comprises the screw thread rails 38 which are suitable for the flanks 7 of thread of screw in a nozzle-shaped projection 37 projecting above the front edge 36 of the cup-shaped protection cover 34, whereby the screw thread rails 38 can also be realized in the form of an angle thread steep multi-threaded. The latter engage in a counterpart 8 threaded. The thread / seal position is defined exactly in such a way that the aforementioned front edge 36 hits a retainer 39 surrounded by a cover which is arranged inside a vessel-shaped cover 40. The opening of this cover 40 is directed in the opposite direction of the external cover 1, while the opening of the protective cover 34 is arranged vice versa. The position of the retainer is shown in Figure 3. Handle H is submerged about half its length. In order to increase the grip, the mantle wall section that stands alone, that is to say the part that is not submerged in the annular space 41, hardens, in particular longitudinally grooves. The grooves are designated 42. The cup-shaped cover 40 comprises a central ring connecting piece 43 projecting over the free end of the cover. Its diameter has such dimensions that the ring wall 10, respectively the cylinder 20 having the same diameter, can move axially therein. The ring connection piece 43 is fitted in a counter-ring space 44 of the double wall protection cover 34. The sealing body 35 located in the inner ring wall 45 is supported by a transverse wall 46 of the ring wall. On the side of the storage space the cylinder 20 continues in the jacket 47 surrounding the receiver 24 being axially guided in it and limited by a retainer. The retainer on the end forms a ring plate 48 clamped. The retainer on the sides of the storage space is made by a ring shoulder 49 resulting from a wall displacement between the cylinder 20 having a smaller diameter and the cylindrical sleeve 47 having a diameter three times greater. Both axially movable parts 24 and 47 are subjected to the same spring load. Both springs 50 and 51 are arranged at the upper edge, which means that the edge located opposite the direction of the liquid outlet 2, the receiver 24 and the jacket 47. These springs are screw pressure springs. The spring 50 of the receiver 24 is connected to an end portion of the forming deviation of the receiver 24 and is located with its external spring winding on the inner side of the ring plate 48. The ring 50 operates on the longitudinal middle x-x axis of the device V, which means that it is located concentrically with respect to the coaxial alignment of the liquid bridges and the displacements of the piston. In addition to this internal helical support of the receiver 24, the clamping and guiding sleeve 47 is supported on itself by said spring 50 which is again supported by the section of the external cover 1. It is mounted on a stump 52 forming a fixed ring bearing. A corresponding stump 53 'starts from an extension arm 53 of the sleeve 47. It forms a movable spring bearing and supports this end of the spring 51. The median axis of the stumps 52, 53 'extends parallel to the longitudinal average x-x axis.

The springs 50, 51 can be arranged under initial tension. The position subjected to the tension of the spring is maintained by the lockings R1 and R2 of self-clamping. The work R1 maintains the loaded position of the sleeve spring 47. This latch R1 is a structural supporting component 54 in the form of a bar being longitudinally interchangeable with respect to the longitudinal middle x-x axis. This bar is bevelled with spring tension in the direction of the lock. The spring is designated 55 and operates on the back of the bar mentioned. It is supported in a stable manner in its end winding surrounded by the cover by the external cover 1. By this means also a stump 56 fixes the position. The end winding on the sides of the bar is located in a valley 57. A nose 58 forms the active part of real support. It is located below the sleeve 47 forming with its lower side together with a blocking shoulder a ring shoulder 49. The structural supporting component 54 is based on a sliding surface 59 formed by the inner side of the outer cover 1. The release of the lock R1 is carried out by means of a release lever 60 having two arms and which is located in a pivotable position around a shaft end 61 inside the external cover 1. His arm continues on a release button 62 being arranged in a recess 63 accessible from the outside and protected from incidental contact. The deepening 63 is located at the end of the outer cover 1, the end being located opposite the injection needle 5. The release button 62 is as long as the tip of a finger. In addition, the release button 62 covers part of the device that are located behind it, such as, for example, the spring 51 etc. , in such a way that they can not be seen. The release lever 60 that starts in one piece on the back side of the release button 62 extends through the outer cover 1 of the device V mainly parallel to the side of the unit of the shirt / receiver 47/24. With this the other arm b of the release lever 60 protrudes into the section of the supporting structural component 54. Applied there with the supporting structural component 54 on a link pin 64. A loading of the release button 62 in the direction of the arrow P becomes a movement releasing the locking function R1, which means that the nose 48 is removed from below the ring shoulder 49, so that the sleeve 47 subjected to the tension of the spring is projected together with the receiver 24 being in a loadable position. The release lever 60 releases the sleeve support 47 directly on the supporting structural component 54, which means rather indirectly (when the intermediate component 54 is not considered), while the receiver 24 is released from the tension spring directly by the work R2, whereby the sleeve 47 forms a taper W for the corresponding support of the receiver 24 in the sleeve 47. This is released by a blocking piece 65 which is arranged in a guide 66. The guide direction is situated transverse to the longitudinal axis xx longitudinal axis of the receiving unit / shirt 24/47. A control bevel 68 is located outside the mantle surface of the jacket 47, the control bezel 68 being a connection to the pivot-like portion of the blocking piece 65, the pivot-like part making a penetration point 67 of the walls of the sleeve 47 and forming with its free inner end the actual taper W with respect to the receiver 24. The blocking piece 65 is subjected to a spring tension 69 in the direction of the blocking position, whereby the spring 19 is supported by the end of a transverse console forming the guide 66. The control bevel 68 with its acute angle is directed to the longitudinal middle axis xx so that the nose 58 of the supporting structural component 54 can be inserted from its lower side when the locked R1 is released. Hereby the receiver 24 is released, whereby the receiver 24 is then displaced relatively to the sleeve 47 by the pressure of the spring 50. In this way the quantity 2 'located in the intermediate reservoir 1 7 is injected.

The control bezel 68 operates together with the back side of the nose 58 functioning as the correspondingly transverse counter control surface 70. The receiver 24 continues on a transversely extending interchangeable closure lever 71 by which the receiver 24 can be moved relative to the jacket 47 against the tension of the spring 50. The interchangeable closure lever 71 extends over a longitudinal slot 72 of the wall of the jacket 47. The usable length of the longitudinal slot 72 corresponds to the displacement stroke between the receiver 24 and the jacket 47. The free end of the interchangeable closure lever 71 further extends through an opening 73 of the 1 external coverage. The end 71 'of the interchangeable closure lever 71 forms an operator handle. End 71 'runs in a grip valley 74 of device V and does not protrude outside. This prevents incidental unwanted releases. The interchangeable locking lever 71 forms with its edge 71"on the sides of the lower part a retainer for coupled movement, whereby the counterpart similar to a detent jacket is the upper end 72 'of the longitudinal slot 72. It will be noted that the external cover 1 comprises a filling inlet 71 located concentrically with respect to the storage space 3, respectively with respect to the vessel cavity 25 of the receiver 24. This inlet 75 is closed by a stopper which is designated with the number 76. It comprises a thread 77 in its wide detent head section, respectively the bushing section, whereby the thread 77 with a corresponding counter-thread is disposed in threaded omen 78 of the outer cover 1, the threaded hole 78 being located congruently with respect to the filler inlet 75. The plug 76 penetrates with its thinnest area the opening of the ring plate 48 in order to protrude with its zone m s thin sectionally in additionally in the cylindrical cavity of the cartridge K. A final, third, again reduced zone enters the central cavity of the piston 12 tensile hardened by a hub bearing 79 properly measured. As shown in Figure 4, the plug 76 has a length that leads to an appropriate drag of the cartridge K, whereby, however, it is considered that an axial free float F (Figure 3) mainly, respectively at least corresponds to the length of the level of the hollow needle 28. The cartridge K alone is then supplied to the connector channel 27 and to the successive penetration channel 18 when the device V is charged, which means when the division of the quantity 2 'in the intermediate container 17 is effected.

The function of device V is as follows: When opening storage space 3 the cartridge K is arranged. The cap 76 can be operated in the direction of the thread by a gripping groove 80, for example with a coin. The cartridge insert K is described in Figure 2. The drag position shown in Figure 3 can be made very early on by a strongly desired protrusion of the mentioned axial free float F in that the cartridge K is completely inserted into the cavity 25 of the vessel and that the cap is added. The use of the axial free float shows the advantage that the flow bridge is made only when the device is used, which means when the injection needle 5 is then provided. In order to make the position ready for use, the protruding cylinder 20, for example, due to a previous use, is displaced against the load of the spring 51 inside the outer casing 1 by the use of the handle H, which means the protection cover 34. By using the Luer 6 connection, the appropriate operating connection can be obtained on the screw thread rails 38. The entry address is designed with and. During this displacement the spring 50 keeps the output piston 19 in its main position. The bar-like structural support component 54 is clamped by forming the lock R1, under the ring shoulder 49. This is the closed intermediate position not loaded as shown in Figure 3.

From now on the loading of the intermediate reservoir 1 7 can be effected which is caused by a relative displacement of the receiver 24 to the sleeve 47. In the subsequent the exchangeable closing lever 71 moves further in the direction of the arrow and against the resistance (tension) of the spring 50. This is effected until the position subjected to the tension of the spring according to Figure 4 is reached. When this arrangement is achieved, the device V is loaded. During this operation the output piston 19 moved recognizable inside the cylinder 20 in the direction of the arrow y. The negative pressure (partial vacuum) that arises with this sucks the quantity 2 'that is to be applied exactly in the intermediate reservoir 1 7. It is thus supplied from the back of the outlet piston 19 to the front surface forming a pressure bottom. The stop valve 32 controls this inflow. The unwanted air is not sucked, because the seal body 35 blocks the opening of the section channel of the outlet nozzle 4. In order to apply the separated amount 2 ', the handle H is removed and the injection needle 5, respectively the hollow needle, is fixed on the Luer 6 connection. This is effected without contamination using a plug handle 82 which is available under the registered trademark and collecting the injection needle 5 in a sterile form. The corresponding drive projections are located between the cap portion 11 of the Luer connection 6 and the internal walls of the cap handle 82. On the lock R2 in the position subjected to the tension of the spring the receiver 24 is supported by the taper W being effective therein. Now the injection can be made. In the subsequent the release button 62 is pressed. The release lever 60 moves against the tension of the spring 55 which, after release, brings the release lever 60 back to the locked position. The spring 55 functions at the same time as a restoration spring. Pressing the button causes displacement of the supporting structural component 54 away from the sleeve 47. The sleeve 47 loses its support through the nose 58 and moves rapidly downwards in the opposite direction of the arrow y. By means of this the injection needle 5 arises from the protective cover 40 in such a way that it is then loosely located above the central ring nozzle 43 and penetrates the application area 83 of a living being. In this way a rapid subcutaneous or intramuscular injection is obtained. In the extreme phase of this downward movement caused by the spring, the blocking part 65 forming the locking part R2 becomes the effective section of the counter-surface 70 for controlling the structural supporting component 54. This situation is shown in Figure 6. The taper W thus recedes from the active support projection located opposite to the lower side of the receiver 24. The spring 50 presses the output piston 19 in the opposite direction of the arrow y. The separated amount 2 'is fully applied because in spite of the emerging output overpressure caused by the effect of the stop valve 32, nothing can flow back into the storage space 3. As a whole, the device works in this way in that the output piston 19, together with its receiver 24 containing the storage space 3, is moved mainly upwards under the filling of the intermediate tank 17, which means making a stroke of loaded in the direction of the arrow and, and in that, by a corresponding release, the cylinder 20 of the output piston 19, the cylinder 20 forming the intermediate reservoir 1 7, is then displaced, together with its receiver 24, in the opposite direction of the arrow y. This opposite stroke, which means the exchange movement in the opposite direction of the arrow y, is effected in successive phases of time, whereby this exchange movement consists of a forward stroke that removes the injection needle 5 from the lower cover 40 and an injection blow. At first the time phases are carried out simultaneously, while in the last phase a subsequent injection stroke is made.

It is particularly advantageous for the operation that the two time phases are fixed by the release button 62 by the corresponding release of the effects of the spring. The recharging is possible only when the injection needle 5 is removed since its length does not allow a handle arrangement (H) as to a displacement of the cylinder 20, the displacement causing a z-stroke of full spring loading, it can be done In addition, the Luer 6 connection is occupied by the flank 7 of the screw thread. This necessarily leads to the fact that a new needle has to be fixed. The injection means can therefore be applied for each person. In particular, in reliable cases it may be advantageous to conduct the spring loaded stroke z immediately on the interchangeable closing lever 71. In this case, the spring 50 of the receiver 24 is fixed under a higher tension than the spring 51 of the sleeve 47. By this means the end 72 'of the longitudinal groove 72 is used as a drag ring. The relatively more "flexible" spring mainly sinks. The content of the glass cartridge is provided with about ten 2 'amounts which are to be separated in equal parts. The released charges can be measured optically by means of a numerator device 84 which is located in one of the large areas of the device V.

In its lower extreme position the ring shoulder 49 is brought into contact with the correspondingly enlarged sliding surface 59 or, as shown, with a rail 85 which extends beyond the ring shoulder 49 in such a way that it is directed slightly into the interior of the ring. the sleeve, whereby the front surface of the rail 85 which is located on the side of the supporting structural component 54, forms a locking catch 86 for the supporting structural component 54. All the features described are significant for the invention. By this means the content of the description of the appropriate priority documents / annexes (copy of the previous application) is fully included in the description of the application, with which the objective of this is to integrate the characteristics of these documents into the claims of the present application.

Claims (20)

1. CLAIMS 1 . A device for the exit of a liquid in divided amounts from a storage space, preferably in the form of a cartridge, on an outlet nozzle, preferably in the form of an injection needle, characterized in that the intermediate deposit collects the amount divided from the storage space, whereby for the intermediate tank an outlet piston with a penetration channel for filling the intermediate tank is provided.
2. 2. The device, according to claim 1, or particularly in accordance with the claim, characterized in that the output piston together with a receiver containing the storage space, by filling the intermediate reservoir can be moved (arrow y), and the cylinder that the outlet piston forms the intermediate reservoir can change, together with this receiver, in the opposite direction.
3. 3. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that a reflux valve is disposed between the storage space and the intermediate reservoir.
4. 4. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the movement of change in the opposite direction is effected in successive phases.
5. 5. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that both phases are obtained by releasing two loaded springs.
6. 6. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the cylinder continues in a sleeve surrounding the receiver.
7. 7. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that both springs are disposed at the upper end of the jacket / receiver and because they are supported by an external envelope.
8. 8. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the external envelope comprises a filling inlet arranged concentrically with respect to the storage space of the receiver.
9. 9. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the filling inlet is closed by a plug.
10. 10. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the plug has a length that leads to an appropriate drag of the cartridge. eleven .
11. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the cartridge is a glass cartridge.
12. 12. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the common release button releases the trimming effect.
13. 13. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the release button is arranged on an arm (a) of a release lever having two arms.
14. 14. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the release lever directly releases a support (supporting structural component) of the sleeve, the sleeve comprising a taper (W). ) to support the receiver, whereby the taper (W) is driven in the released position by dragging on the support component of the sleeve.
15. 15. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the supporting structural component is a bar loaded with springs in the effective direction disposed in the other arm (b) of the release lever.
16. 16. The device according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the release lever extends in the outer casing of the device (V) parallel to the receiver / sleeve unit).
17. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the sleeve can be moved back together with the receiver in the position subject to the tension of the device. spring by means of a handle (H), preferably a protective cover that can be moved upwardly from the nozzle, whereby the sleeve pulls along with the receiver to an intermediate position (Figure 3) from which the receiver can be moved to the position subjected to spring tension by an operation of the interchangeable closing lever.
18. 18. The device according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the interchangeable closing lever is disposed within a longitudinal groove of the sleeve, whereby this longitudinal groove forms a catch for the movement of drag on its upper edge.
19. 19. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized in that the receiver spring is more taut than the sleeve spring.
20. 20. The device, according to one or more of the preceding claims, or particularly in accordance with the claim or claims, characterized by a cover surrounding the nozzle and comprising an annular space for allowing the wall of the protective cover to enter, which limits the entry through the retainer.