Spray applicator for spraying a multi-component fluid

Abstract

Spray applicator (100) for a dispensing device for spraying of a multi-component fluid comprising an applicator housing (110) with at least one applicator outlet opening (103), wherein the applicator housing (110) includes at least one component channel (120; 130) with a component inlet opening (127; 137) and a component outlet opening (123; 133) and at least one gas supply channel (140) with a gas inlet opening (147) and a gas outlet opening (143), characterized in that the gas outlet opening (143) is located at a greater distance from the at least one applicator outlet opening (103) than the component outlet opening (123; 133), wherein the gas outlet opening (143) and the component outlet opening (123, 133) are arranged within the applicator housing (110) such that, viewed in the spray direction, a gas or gas mixture used for spraying is prevented from entering the applicator housing (110) by a greater distance from the gas outlet opening (147) and the component outlet opening (123, 133). spraying components escape within the applicator housing (110) and the at least one component channel (120; 130) and the at least one gas supply channel (140) are designed to run parallel to each other in the longitudinal direction of the applicator housing (110).

Description

Area of ​​application and state of the art

[0001] The present invention relates to a spray applicator for spraying a multi-component fluid.

[0002] The spraying of multi-component fluids using gases is well known.

[0003] Corresponding spray devices are described, for example, in the publications US 5 810 885 A, US 5 605 541 A, US 2002 / 0 165 483 A1, WO 2010 / 048 734 A1, US 2010 / 0 072 303 A1, and EP 1 994 955 A1. The devices each have channels for the components to be sprayed and a channel for a pressurized gas, with the channels each opening out of the tip of the spray devices.

[0004] Spray guns for gas-assisted spraying of surgical adhesives are known from US 8 210 453 B2 and US 7 861 893 B2.

[0005] US 2003 / 0 209 612 A1 discloses a spray head for the discharge of biological fluids, in which the components to be sprayed and the gas used for spraying are introduced into a mixing chamber before spraying.

[0006] A gas-assisted and endoscopically usable tissue adhesive applicator is known from US 7 682 336 B2.

[0007] State-of-the-art spray devices often suffer from poor or insufficient mixing of the components to be sprayed, as well as premature clogging of the device's outlet openings due to component residues. This is especially true if the spraying process is interrupted. Task and solution

[0008] The present invention is therefore based on the object of providing a spray applicator that avoids the disadvantages associated with conventional spray devices. In particular, the spray applicator should enable more homogeneous mixing of the components to be sprayed and, moreover, prevent premature blockage of an applicator outlet opening.

[0009] This object is achieved by a spray applicator having the features of independent claim 1. Preferred embodiments of the spray applicator are defined in dependent claims 2 to 13. The wording of all claims is hereby incorporated by express reference into the content of the present description.

[0010] The invention proposes a spray applicator for a dispensing device for spraying a multi-component fluid, preferably a two-component fluid. The spray applicator can be provided in particular for a dispensing device for spraying organic and / or aqueous media.

[0011] The fluid is preferably a liquid which can be discharged or sprayed in the form of a liquid-gas aerosol.

[0012] The multi-component fluid is preferably a medical, in particular surgical, adhesive.

[0013] The components to be sprayed can in particular be an activatable, preferably polymerizable and / or crosslinkable, component, and an activating component (activator component), preferably a polymerization initiator and / or a crosslinking agent.

[0014] Suitable activatable components can, for example, be selected from the group comprising cyanoacrylates, fibrinogen, collagens, gelatin, albumins, amines, alcohols, furyls and combinations thereof.

[0015] Suitable activating components can, for example, be selected from the group comprising water, thrombin, transglutaminase, maleimides, aldehydes, active esters and combinations thereof.

[0016] Suitable gases by means of which the components can be sprayed as a multi-component fluid, in particular a two-component fluid, are preferably selected from the group comprising air, nitrogen, carbon dioxide, trichlorofluoromethane, dichlorodifluoromethane, tetrafluoroethane and mixtures thereof.

[0017] The gas or gas mixture can be supplied, for example, via a gas connection in the operating room, a compressor, a battery-operated pump, or a gas-filled metal can with a valve. The gas supply can also be integrated into a discharge device surrounding the applicator, for example, in a handle of such a device.

[0018] The spray applicator comprises an applicator housing and at least one applicator outlet opening. Additionally, the spray applicator may comprise a handle, in particular a pistol-shaped handle.

[0019] In addition, the spray applicator comprises at least one component channel with a component inlet opening and a component outlet opening and at least one gas supply channel with a gas inlet opening and a gas outlet opening.

[0020] The at least one component channel and the at least one gas supply channel are at least partially contained in the applicator housing or at least partially arranged within the applicator housing.

[0021] At least the component outlet opening and the gas outlet opening are contained in the applicator housing or arranged within the applicator housing.

[0022] According to the invention, however, it is preferred if the at least one component channel and the at least one gas supply channel are completely contained in the applicator housing or are arranged completely within the applicator housing.

[0023] The spray applicator is characterized in that the gas outlet opening of the at least one gas supply channel is arranged at a greater distance or at a greater distance from the at least one applicator outlet opening than the component outlet opening of the at least one component channel.

[0024] The invention thus proposes a spray applicator in which the gas outlet opening and the component outlet opening are arranged within the applicator housing such that, viewed in the spray direction, a gas or gas mixture used for spraying exits the applicator housing before the components to be sprayed. In addition, the gas can flow around the components in a laminar manner after exiting the spray applicator in order to influence, in particular focus, the spray pattern of the exiting multi-component fluid.

[0025] The following advantages can be achieved by means of the invention: ➢ The special arrangement of the gas outlet opening and the component outlet opening within the applicator housing enables a more homogeneous or even mixing of the components to be sprayed, since the escaping components can be contacted with a gas or gas mixture immediately after they exit from the at least one component channel. ➢ By bringing the components into early contact with a gas or gas mixture, the components are transported more quickly toward the at least one outlet opening of the spray applicator, thereby shortening their residence time within the applicator housing. This minimizes or even completely eliminates the risk of (early) blockage or clogging of the at least one applicator outlet opening by component residues, particularly those formed after an interruption of the application process. This is particularly advantageous when spraying reactive components.

[0026] For the purposes of the present invention, the term “channel” is to be understood as a hollow body which is generally elongated, in particular cylindrical, preferably circular-cylindrical.

[0027] The term “at least one component channel” in the sense of the present invention means one component channel or a plurality of component channels, ie two or more component channels.

[0028] The term “component channel” defines, in the sense of the present invention, a channel which is designed to convey one or more components, in particular from a proximal end of the spray applicator, in the direction of a distal end of the spray applicator or in the direction of the at least one applicator outlet opening.

[0029] Furthermore, the term "component channel" encompasses both monolumen tubes or monolumen hoses and multilumen tubes or multilumen hoses, in particular dilumen tubes or dilumen hoses. In other words, a component channel within the meaning of the present invention can be configured as a monolumen tube or monolumen hose or as a multilumen tube or multilumen hose, in particular a dilumen tube or dilumen hose. The term "at least one gas supply channel" within the meaning of the present invention means one gas supply channel or a plurality of gas supply channels, i.e., two or more gas supply channels.

[0030] The term “gas supply channel” defines, in the sense of the present invention, a channel which is designed to convey a gas or gas mixture, in particular from a proximal end of the spray applicator, in the direction of a distal end of the spray applicator or in the direction of the at least one applicator outlet opening.

[0031] Furthermore, the term "gas supply channel" encompasses both monolumen tubes or monolumen hoses and multilumen tubes or multilumen hoses, in particular dilumen tubes or dilumen hoses. In other words, a gas supply channel within the meaning of the present invention can be designed as a monolumen tube or monolumen hose or as a multilumen tube or multilumen hose, in particular a dilumen tube or dilumen hose.

[0032] The term "component inlet opening" in the sense of the present invention means an opening in the at least one component channel through which a component to be sprayed / multiple components to be sprayed enter(s) the at least one component channel, whereas the term "component outlet opening" in the sense of the present invention defines an opening through which a component to be sprayed / multiple components to be sprayed exit(s) from the at least one component channel in the direction of the at least one applicator outlet opening. Depending on the design of the spray applicator, the exited multi-component fluid, in particular two-component fluid, can, as already mentioned, be focused by a gas jet flowing laminarly around the spray applicator.

[0033] The component inlet opening is usually located at a proximal end of the at least one component channel, whereas the component outlet opening is usually located at a differently designed, preferably opposite, distal end of the at least one component channel.

[0034] Accordingly, the term “gas inlet opening” defines an opening of the at least one gas supply channel through which a gas or gas mixture intended for the spraying process enters the at least one gas supply channel, whereas the term “gas outlet opening” defines an opening through which a gas or gas mixture intended for the spraying process exits the at least one gas supply channel in the direction of the at least one applicator outlet opening.

[0035] The gas inlet opening is usually located at a proximal end of the at least one gas supply channel, whereas the gas outlet opening is usually located at a differently designed, preferably opposite, distal end of the at least one gas supply channel.

[0036] The term "at least one applicator outlet opening" in the context of the present invention means one applicator outlet opening or a plurality of applicator outlet openings, ie, two or more applicator outlet openings. The at least one applicator outlet opening can be arranged frontally or laterally.

[0037] The term “spray direction” defines in the sense of the present invention the direction in which the spraying process takes place, ie in the direction of at least one applicator outlet opening.

[0038] The term “proximal end” in the context of the present invention means an end located towards the torso of a user, whereas the term “distal end” defines an end that is further away from or directed away from the torso of a user.

[0039] The user mentioned above is usually a doctor or medical professional.

[0040] The at least one component channel and the at least one gas supply channel are formed parallel to one another in the longitudinal direction of the applicator housing.

[0041] In principle, the invention can provide for the spray applicator to have a component channel and a gas supply channel. This embodiment can be particularly advantageous for spraying components that either do not react with each other or react only very slowly, for example, by curing or gelling. In this case, the components can be conveyed together, i.e., as a mixture, by means of the one component channel toward the at least one applicator outlet opening.

[0042] In a preferred embodiment, however, the spray applicator comprises two component channels, each with a component inlet and a component outlet, as well as a gas supply channel with a gas inlet and a gas outlet. According to the invention, in this case, the gas outlet is arranged at a greater distance or at a greater distance from the at least one applicator outlet than the component outlets.

[0043] Preferably, the component channels and the gas supply channel are at least partially contained in the applicator housing or arranged within it.

[0044] In particular, at least the component outlet openings and the gas outlet opening are contained in the applicator housing or arranged within the applicator housing.

[0045] Preferably, the component channels and the gas supply channel are completely contained in the applicator housing or arranged within it.

[0046] If the spray applicator has multiple component outlet openings, as described, for example, in the previous paragraphs, the component outlet openings can generally be arranged at unequal (different) distances from the at least one applicator outlet opening. According to the invention, however, it is preferred if the component outlet openings in this case are arranged at the same distance or at the same distance from the at least one applicator outlet opening.

[0047] If the spray applicator has a plurality of component channels, as described, for example, in the previous paragraphs, it is further preferred if the component channels and the at least one gas supply channel are designed to run parallel to one another in the longitudinal direction of the applicator housing.

[0048] The applicator housing and / or the cavity (lumen) defined by it are preferably tubular, in particular in the form of a round tube.

[0049] The applicator housing or the cavity it defines can be rigid or stiff. Alternatively, the applicator housing or the cavity it defines can be flexible.

[0050] Depending on the materials used, the applicator housing, preferably its distal end, can be designed to be flexible. Directional fixation of the applicator housing or its distal end can be achieved, for example, using an integrated guidewire. This enables more targeted application, particularly during laparoscopic, preferably minimally invasive, laparoscopic procedures.

[0051] The applicator housing can have an outer diameter of 0.5 mm to 30 mm, in particular 1 mm to 15 mm, preferably 2 mm to 10 mm.

[0052] Furthermore, the applicator housing can have an inner diameter (corresponding to the diameter of the cavity delimited by the applicator housing) of 0.4 mm to 29.9 mm, in particular 0.9 mm to 14.9 mm, preferably 1.9 mm to 9.9 mm.

[0053] The applicator housing is preferably designed to taper at its distal end toward the at least one applicator outlet opening. This allows the multi-component fluid to be sprayed without major difficulties, particularly onto hard-to-reach body surfaces.

[0054] The applicator housing may further be formed from a plastic, for example from polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene and / or polyurethane, and / or a metal.

[0055] Preferably, the distal end of the applicator housing is designed to be rotatable or bendable, in particular rotatable or bendable by 360°.

[0056] Furthermore, it is preferred if the at least one component channel or the component channels mentioned in the previous paragraphs and / or the at least one gas supply channel are tubular, in particular in the form of a round tube.

[0057] The at least one component channel or the component channels mentioned in the preceding paragraphs and / or the at least one gas supply channel can have an outer diameter of 0.1 mm to 29 mm, in particular 0.2 mm to 10 mm, preferably 0.3 mm to 5 mm.

[0058] Furthermore, the at least one component channel or the component channels mentioned in the previous paragraphs can have an inner diameter (corresponding to the diameter of the cavity delimited by the at least one component channel or by the component channels) of 0.05 mm to 28.9 mm, in particular 0.1 mm to 9.9 mm, preferably 0.2 mm to 4.9 mm.

[0059] In a further embodiment, the at least one gas supply channel can have an outer diameter of 0.1 mm to 29 mm, in particular 0.2 mm to 10 mm, preferably 0.3 mm to 5 mm.

[0060] Furthermore, the at least one gas supply channel can have an inner diameter (corresponding to the diameter of the cavity delimited by the at least one gas supply channel) of 0.05 mm to 28.9 mm, in particular 0.1 mm to 9.9 mm, preferably 0.2 mm to 4.9 mm.

[0061] The at least one component channel or the component channels mentioned in the preceding paragraphs and / or the at least one gas supply channel can also be formed from a plastic, for example from polyethylene, polypropylene, polyvinyl chloride, polytetrafluoroethylene and / or polyurethane, and / or a metal.

[0062] In a further preferred embodiment, the spray applicator further comprises a mixing element, in particular a dynamic or static mixing element, preferably a static mixing element. The mixing element particularly advantageously contributes to additional mixing of the components to be sprayed. For this purpose, the mixing element can be provided, in particular, with mixing blades or the like.

[0063] The mixing element is preferably arranged between the at least one applicator outlet opening on the one hand and the component outlet opening(s) and the gas outlet opening on the other hand. In other words, the mixing element is preferably arranged downstream of the component outlet opening(s) and the gas outlet opening, viewed in the spray direction.

[0064] In a further embodiment, the mixing element can be arranged within the applicator housing.

[0065] Alternatively, the mixing element can be accommodated in a mixing device, in which case the at least one applicator outlet opening is located at a distal end of the mixing device. The mixing device is preferably designed to taper to a point in the region of the applicator outlet opening.

[0066] In a further embodiment, the mixing device can be integrally connected to a distal end of the applicator housing.

[0067] Alternatively, the mixing device can be designed to create a connection, in particular a screw or plug connection, with a distal end of the applicator housing. This advantageously allows the use of different mixing elements.

[0068] In a further embodiment, the at least one component channel, in particular the component channels mentioned in the preceding paragraphs, can have a connecting device at its proximal end, which is designed to establish a connection with an outlet opening of a component container. The component container can be, for example, a syringe, a bag, or a cartridge.

[0069] The at least one gas supply channel can also have a connecting device at its proximal end, wherein the connecting device in this case is designed to effect a connection with an outlet opening of a gas source or a gas reservoir.

[0070] The connecting device described in the two previous embodiments can be designed, for example, as a Luer connector, a connector with a screw thread, a plug-in connector, a check valve or a two-way or multi-way valve.

[0071] To prevent gas leakage toward the proximal end of the applicator housing, an advantageous embodiment provides for the applicator housing to be gas-tight at its proximal end. However, a gas seal (gas barrier) can also be formed within the applicator housing.

[0072] The spray applicator according to the invention is preferably designed as a spray head, in particular as a pivotable and / or rotatable spray head.

[0073] In a further embodiment, the at least one applicator outlet opening comprises a plurality of applicator outlet openings. These are preferably arranged at the distal end and in particular in the circumferential direction of the spray applicator. Alternatively, the applicator outlet openings can be arranged at the distal end and in particular in the circumferential direction of a mixing device. In this respect, reference is made entirely to the preceding description. According to the invention, it is preferred if the applicator outlet openings are arranged in a ring-circle shape. In particular, a plurality of ring-circle arrangements of applicator outlet openings, preferably running parallel to one another, can be provided. In the embodiments described in this paragraph, it is also expedient if the distal end of the spray applicator or the mixing device is otherwise, ieapart from the applicator outlet openings, is designed to be closed and in particular does not have an applicator outlet opening arranged at the front at the distal end of the spray applicator or the mixing device.

[0074] The aforementioned and other features and advantages of the invention will become apparent in particular from the following description of the figures in conjunction with the subclaims. Individual features of the invention may be implemented individually or in combination with one another. The described embodiments serve merely to explain and facilitate a better understanding of the invention and are not to be understood as limiting in any way.

[0075] The figures show schematically: Fig. 1: an embodiment of a spray applicator according to the invention, Fig. 2: another embodiment of a spray applicator according to the invention, Fig. 3a-d: various embodiments of a mixing device for a spray applicator according to the invention and Fig. 4: another embodiment of a spray applicator according to the invention.

[0076] The Fig. 1 shows a perspective exploded and sectional view of an embodiment of a spray applicator 100 according to the invention.

[0077] The spray applicator 100 comprises an applicator housing 110 and has an outlet opening 103 at its distal end 111.

[0078] A mixing element 105, two component channels 120 and 130 and a gas supply channel 140 are arranged in the applicator housing 110.

[0079] The component channel 120 has a component outlet opening 123 at its distal end 121 and a component inlet opening 127 at its proximal end 129.

[0080] Accordingly, the component channel 130 has a component outlet opening 133 at its distal end 131 and a component inlet opening 137 at its proximal end 139.

[0081] The gas supply channel 140 has a gas outlet opening 143 at its distal end 141 and a gas inlet opening 147 at its proximal end 149.

[0082] The applicator housing 110 and the channels 120; 130 and 140 can each be tubular, in particular round-tubular, and define a hollow space that is also tubular, in particular round-tubular.

[0083] The applicator housing 110 as well as the channels 120; 130 and 140 can basically be designed as monolumen tubes and / or multilumen tubes such as dilumen tubes, preferably of different diameters.

[0084] The applicator housing 110 is preferably designed to be gas-tight between the distal end 141 of the gas supply channel 140 and the proximal end 119 of the applicator housing 110 and / or at the proximal end 119 of the applicator housing 110.

[0085] The applicator housing 110 can taper towards the outlet opening 103 (or towards the distal end 111) to form an applicator tip, which particularly facilitates the spraying of a multi-component fluid onto or into hard-to-reach areas of the body.

[0086] The mixing element 105, which may be a static mixing element, for example, is arranged between the outlet opening 103 and the outlet openings 123; 133 and 143 of the channels 120; 130 and 140.

[0087] The outlet opening 143 of the gas supply channel 140 is at a greater distance from the outlet opening 103 than the outlet openings 123 and 133 of the component channels 120 and 130.

[0088] Due to the special arrangement of the channels 120; 130 and 140 or the outlet openings 123; 133 and 143, a more uniform or homogeneous mixing of components is already possible within the applicator housing 110, since the mixing of the components is supported immediately after they exit from the outlet openings 123 and 133 by the gas (or gas mixture) used for spraying and, in addition, by the mixing element 105.

[0089] In addition, the special arrangement of the channels 120; 130 and 140 or the outlet openings 123; 133 and 143 shortens the residence time of the components within the applicator housing 110, since the components are transported in the direction of the outlet opening 103 immediately after they exit the outlet openings 123 and 133 by a gas (or gas mixture) exiting the outlet opening 143, ie even before they are actually mixed.

[0090] This in turn prevents premature blockage of the outlet opening 103 by component residues, which can be caused in particular by reactive components, for example as a result of curing processes.

[0091] The Fig. 2 shows a perspective exploded and sectional view of another embodiment of a spray applicator 100 according to the invention.

[0092] Compared to the Fig. The spray applicator 100 shown in Figure 1 is characterized by the Fig. The spray applicator 100 shown in Figure 2 is characterized in that the mixing element 105 is accommodated in a mixing device 150 and the mixing device 150 is designed to be connectable to a distal end 111 of the applicator housing 110, wherein the connection can be effected, for example, via a screw or plug connection.

[0093] In the Fig. In the embodiment shown in Figure 2, the outlet opening 103 is formed at the distal end 151 of the mixing device 150.

[0094] The mixing device 150, like the applicator housing 110 and the channels 120; 130 and 140, can be tubular, in particular round-tubular, wherein the mixing device 150 is preferably tapered in the direction of the outlet opening 103 (or in the direction of the distal end 151).

[0095] For further features and advantages, reference is made entirely to the information provided in connection with the Fig. Reference is made to the statements made in paragraph 1.

[0096] The Fig. 3a-d show schematic perspective views of various embodiments for a mixing device 150.

[0097] The mixing device 150 can, for example, be tubular, in particular round-tubular, and tapered towards the outlet opening 103 ( Fig. 3a).

[0098] Alternatively, the mixing device 150 can be designed discontinuously or continuously tapering towards the outlet opening 103 ( Fig. 3b and Fig. 3c).

[0099] The change in the geometry or shape of the spray applicator 100 in the region of its outlet opening 103, in particular the change in the geometry or shape of the mixing device 150, allows the mixing of the components and the spray pattern as a whole to be influenced with particular advantage.

[0100] The mixing device 150 may further be surrounded by one or more channels 160 through which gas flows and which may additionally influence the spray pattern ( Fig. 3d).

[0101] For further features and advantages, please refer to the Fig. 1 and Fig. Reference is made to the statements made in paragraph 2.

[0102] The Fig. 4 schematically shows a section of a spray applicator 100 according to the invention in the region of its distal end 111.

[0103] Compared to the Fig. The spray applicator 100 shown in Figure 1 is characterized by Fig. 4 is characterized in that it has a plurality of applicator outlet openings 103 at its distal end 111, which are formed in a circular ring shape at the distal end 111 and in the circumferential direction of the spray applicator 100. Alternatively, the applicator outlet openings 103 can also be arranged in a circular ring shape at the distal end and in the circumferential direction of a mixing device, which in turn, as shown for example in Fig. 2, can be connected to a distal end of the spray applicator.

[0104] For further features and benefits of the Fig. 4 shown spray applicator 100 is referred to in connection with the Fig. Reference is made to the statements made in paragraph 1.

Claims

[1] Spray applicator (100) for a discharge device for spraying a multi-component fluid comprising an applicator housing (110) with at least one applicator outlet opening (103), wherein the applicator housing (110) contains at least one component channel (120; 130) with a component inlet opening (127; 137) and a component outlet opening (123; 133) and at least one gas supply channel (140) with a gas inlet opening (147) and a gas outlet opening (143), characterized bythat the gas outlet opening (143) is at a greater distance from the at least one applicator outlet opening (103) than the component outlet opening (123; 133), wherein the gas outlet opening (143) and the component outlet opening (123, 133) are arranged within the applicator housing (110) in such a way that, viewed in the spraying direction, a gas or gas mixture used for spraying emerges in front of components to be sprayed within the applicator housing (110) and the at least one component channel (120; 130) and the at least one gas supply channel (140) are designed to run parallel to one another in the longitudinal direction of the applicator housing (110). [2] Spray applicator (100) according to claim 1, characterized bythat the applicator housing (110) contains two component channels (120; 130) and a gas supply channel (140), wherein the gas outlet opening (143) is arranged at a greater distance from the at least one applicator outlet opening (103) than the component outlet openings (123; 133). [3] Spray applicator (100) according to claim 2, characterized by that the component outlet openings (123; 133) are arranged at the same distance from the at least one applicator outlet opening (103). [4] Spray applicator (100) according to one of the preceding claims, characterized by that the applicator (100) further comprises a mixing element (105). [5] Spray applicator (100) according to claim 4, characterized by that the mixing element (105) is arranged between the at least one applicator outlet opening (103) on the one hand and the component outlet opening or the component outlet openings (123; 133) and the gas outlet opening (143) on the other hand. [6] Spray applicator (100) according to claim 4 or 5, characterized by that the mixing element (105) is also arranged within the applicator housing (110). [7] Spray applicator (100) according to claim 4 or 5, characterized by that the mixing element (105) is accommodated in a mixing device (150) which is integrally connected to a distal end (111) of the applicator housing (110). [8] Spray applicator (100) according to claim 4 or 5, characterized by that the mixing element (105) is accommodated in a mixing device (150) which is designed to be screwed to a distal end (111) of the applicator housing (110) or to be plugged onto a distal end (111) of the applicator housing (110). [9] Spray applicator (100) according to one of the preceding claims characterized bythat the at least one component channel (120; 130) has at its proximal end (129; 139) a connecting device which is designed to effect a connection with an outlet opening of a component container. [10] Spray applicator (100) according to one of the preceding claims, characterized by that the at least one gas supply channel (140) has at its proximal end (149) a connecting device which is designed to effect a connection with an outlet opening of a gas reservoir. [11] Spray applicator (100) according to claim 9 or 10, characterized by that the connecting device is a Luer connector, a screw-thread connector, a plug-in connector, a check valve or a two-way or multi-way stopcock. [12] Spray applicator (100) according to one of the preceding claims, characterized bythat the applicator housing (110) is gas-tight between the distal end (141) of the at least one gas supply channel (140) and the proximal end (119) of the applicator housing (110) and / or at the proximal end (119) of the applicator housing (110). [13] Spray applicator (100) according to one of the preceding claims, characterized by that the at least one applicator outlet opening (103) comprises a plurality of applicator outlet openings which are arranged in a ring-shaped manner at a distal end (111) and in the circumferential direction of the spray applicator.

Images