BREATHING MASK WITH GUIDE AREA

Description

[0001] Respiratory masks are used for ventilation, to support breathing, or as a protective mask against aerosols of solid or liquid particles. Respiratory masks are made of a wide variety of materials, some of which are gas-permeable or gas-impermeable. Respiratory masks made of gas-impermeable material have a section partially made of a gas-permeable material or have an outlet for a hose connection system for inhalation and / or exhalation.

[0002] Breathing masks for ventilation or respiratory support form the interface between a user or patient and a ventilator and must meet high standards of stability, safety, and comfort while being easy to use. Breathing masks are usually attached to the user's or patient's head using a harness. Particularly in home ventilation, the user is responsible for correctly donning and securing the breathing mask to the face. The harness is usually connected to the breathing mask via several coupling points and can sometimes place considerable demands on the user's or patient's dexterity. Correctly attaching the breathing mask using the harness is a prerequisite for safe and efficient ventilation.

[0003] DE202005021927U1 discloses a mask system with a forehead support and a frame to which a multi-part headband can be attached, with lower headbands being attached to the frame using clips. DE202004021829U1 shows a mask system without a forehead support and with a frame to which a headband can be attached via openings and pins. WO2017 / 068530A2 discloses a patient interface with an integrated blower, and DE202005041716A1 discloses a breathing mask with a modular system, wherein the components are connected to one another in a coded manner. EP3417900 describes a breathing mask with a mask body and two wings, each of which is secured by a spring plate 18 using a locking pin 20.

[0004] The object of the invention is to provide an improved breathing mask that is easy and safe to put on.

[0005] This object is achieved according to the invention by a breathing mask having the characterizing features of claim 1. The subclaims relate to advantageous embodiments of the invention.

[0006] A breathing mask is described with a face part that comprises at least one plane of symmetry, a circumferential seal for application to the face of a patient, and an outlet, wherein the face part has an outer side that faces away from the patient's face when the breathing mask is in use, wherein the face part has at least two anchor points that are arranged on either side of the plane of symmetry, and wherein the at least two anchor points each comprise a receiving element for detachable connection to a connecting element, and wherein the connecting element is designed to receive a strap. Adjacent to the receiving element, at least one guide region for guiding the connecting element to the receiving element is arranged, which guide region is designed as a guide groove by means of a recess in the outer side of the face part.

[0007] Alternatively, the breathing mask is also characterized in that the guide area is arranged on both sides of the plane of symmetry on the face part.

[0008] Alternatively, the breathing mask is also characterized in that the guide area is formed by elevations on the outside of the face part.

[0009] Alternatively, the breathing mask is also characterized in that the guide channel runs over 5% to 100% of the length of the face part, preferably over 50% to 100%, for example over 95% of the length of the face part.

[0010] Alternatively, the breathing mask is also characterized in that the guide groove comprises a groove inlet which forms a transition from the outer side to the final recess by means of a successive recess.

[0011] Alternatively, the breathing mask is also characterized in that the channel inlet is arranged at an upper end of the face part.

[0012] Alternatively, the breathing mask is also characterized in that the guide channel comprises a channel bottom, a rear channel edge, a front channel edge and an end region, wherein the end region is a region of the channel bottom that is enclosed by at least one of the channel edges.

[0013] Alternatively, the breathing mask is also characterized in that the surface of the channel bottom is smooth and / or structured.

[0014] Alternatively, the breathing mask is also characterized in that the surface of the groove edges is smooth and / or structured.

[0015] Alternatively, the breathing mask is also characterized in that the guide channel is laterally limited by the channel edges, wherein the channel edges are arranged between the outer side and the channel bottom.

[0016] Alternatively, the breathing mask is also characterized in that the groove edges are straight or curved from the outside to the bottom of the groove.

[0017] Alternatively, the breathing mask is also characterized in that the rear groove edge is arranged at an angle α1 to the groove bottom and the front groove edge is arranged at an angle α2 to the groove bottom, wherein the size of the angles α1, α2 can be selected independently of each other.

[0018] Alternatively, the breathing mask is also characterized by the fact that the transition from the channel bottom to the channel edges is angular and / or rounded.

[0019] Alternatively, the breathing mask is also characterized in that the rear groove edge is arranged at an angle β1 to the outside and the front groove edge is arranged at an angle β2 to the outside, wherein the size of the angles β1, β2 can be selected independently of each other.

[0020] Alternatively, the breathing mask is also characterized by the fact that the transition from the outside to the groove edges is angular and / or rounded.

[0021] Alternatively, the breathing mask is also characterized by the fact that the height of the groove edges is constant and / or of different heights.

[0022] Alternatively, the breathing mask is also characterized in that the recess of the guide groove is constant and / or of varying depth, wherein the recess is formed in a range of 0.5 mm to 6 mm deep.

[0023] Alternatively, the breathing mask is also characterized in that the recess is formed with different depths, wherein the recess in the end region is formed between 1 mm and 6 mm deep, preferably 4 mm deep, wherein the recess in the other regions of the guide groove is formed substantially 0.8 mm to 2 mm deep, preferably 1 mm deep.

[0024] Alternatively, the breathing mask is also characterized in that the guide groove comprises a groove width that is of constant width and / or has different widths.

[0025] Alternatively, the breathing mask is also characterized in that the guide groove has different groove widths, wherein a first section is designed as a groove channel with a constant groove width A and wherein the groove width after the groove channel increases successively over a groove width B up to a groove width C and wherein the groove width after reaching the groove width C decreases successively over a groove width D up to a groove width E.

[0026] Alternatively, the breathing mask is also characterized in that the front groove edge and the rear groove edge diverge between the groove width B and the groove width C.

[0027] Alternatively, the breathing mask is also characterized in that the front groove edge and the rear groove edge converge between the groove width C and the groove width E.

[0028] Alternatively, the breathing mask is also characterized in that in the area of the groove width C, the rear groove edge is arranged as far away as possible from the plane of symmetry and the front groove edge is arranged as close as possible to the plane of symmetry.

[0029] Alternatively, the breathing mask is also characterized in that the rear edge of the groove in a region between the groove widths B and D recedes in an arc-like manner such that the guide groove in this region is designed as a groove bay which encompasses the end region.

[0030] Alternatively, the breathing mask is also characterized by the fact that the end region is arranged as far away as possible from the plane of symmetry.

[0031] Alternatively, the breathing mask is also characterized in that the groove bay is enclosed by the rear groove edge, whereby a groove bay width decreases successively in the horizontal direction with increasing distance from the symmetry plane.

[0032] Alternatively, the breathing mask is also characterized in that the groove bay comprises a first groove bay width, a second groove bay width and a third groove bay width, which are formed by the horizontal course of the rear groove edge, wherein the first groove bay width is greater than the second groove bay width and wherein the second groove bay width is greater than the third groove bay width.

[0033] Alternatively, the breathing mask is also characterized in that the first groove width is formed by the horizontal course of the rear groove edge between the groove width B and the groove width D.

[0034] Alternatively, the breathing mask is also characterized in that the second channel width is formed between two front web attachments.

[0035] Alternatively, the breathing mask is also characterized in that the third channel width is formed between an upper central web attachment and a lower central web attachment.

[0036] Alternatively, the breathing mask is also characterized in that the end region is arranged in the channel bay between the second channel bay width and the third channel bay width.

[0037] Alternatively, the breathing mask is also characterized by the fact that the height of the rear channel edge can increase in the area of the end section.

[0038] Alternatively, the breathing mask is also characterized in that the end region of the guide groove is arranged spatially adjacent to the receiving element, wherein the receiving element spans the end region of the guide groove.

[0039] Alternatively, the breathing mask is also characterized in that the receiving element spans the end region of the guide groove in such a way that a receiving space is created.

[0040] Alternatively, the breathing mask is also characterized in that the receiving element is an integral part of the outer side and the groove edges.

[0041] Alternatively, the breathing mask is also characterized in that the receiving element is an integral part of the outer side and the rear groove edge.

[0042] Alternatively, the breathing mask is also characterized in that the face part is made of a hard plastic selected from the group of polyamides, polycarbonates, polyoxymethylenes, polysulfones and polypropylenes.

[0043] Alternatively, the breathing mask is also characterized by the fact that the face part is made of polyamide PA12.

[0044] Alternatively, the breathing mask is also characterized in that the receiving element is made of the same material as the face piece.

[0045] Alternatively, the breathing mask is also characterized in that the receiving element, outer side and rear groove edge are formed in one piece.

[0046] Alternatively, the breathing mask is also characterized in that the receiving element comprises two webs, a bridge, a receiving diameter and a receiving opening.

[0047] Alternatively, the breathing mask is also characterized in that the webs are connected to the rear edge of the channel via web attachment surfaces, which comprise the front web attachment and a rear web attachment, wherein the webs are arranged spatially separated from the channel bottom.

[0048] Alternatively, the breathing mask is also characterized by the fact that the webs are straight and / or curved.

[0049] Alternatively, the breathing mask is also characterized in that the webs are arranged at an angle ε to the channel bottom, wherein the value of the angle ε is in a range from 30° to 90°, preferably in a range from 30° to 60°.

[0050] Alternatively, the breathing mask is also characterized in that the bridge is manufactured in one piece with the webs and the bridge is arranged spatially separated from the channel bottom.

[0051] Alternatively, the breathing mask is also characterized by the fact that the bars, the bridge and the channel bottom limit the receiving space.

[0052] Alternatively, the breathing mask is also characterized in that the bridge is at least partially circular with a receiving diameter and wherein the bridge is interrupted by a receiving opening.

[0053] Alternatively, the breathing mask is also characterized by the fact that the bridge is semicircular.

[0054] The breathing mask is alternatively also characterized in that the receiving element comprises at least one central web and at least one, preferably two openings, wherein the central web is arranged between the bridge and the outer side. The breathing mask is alternatively also characterized in that the central web is arranged on half of the bridge.

[0055] Alternatively, the breathing mask is also characterized in that the at least one central web is connected to the rear channel edge via a central web attachment surface which comprises the upper central web attachment and the lower central web attachment, wherein the central web is arranged spatially separated from the channel bottom.

[0056] Alternatively, the breathing mask is also characterized in that the receiving opening is smaller than the receiving diameter.

[0057] Alternatively, the breathing mask is also characterized by the fact that the receiving opening is directed towards the front.

[0058] Alternatively, the breathing mask is also characterized in that the connecting element is a detachable part of the breathing mask.

[0059] Alternatively, the breathing mask is also characterized in that the connecting element is made of the same material as the face piece.

[0060] Alternatively, the breathing mask is also characterized in that the connecting element comprises a fastening element and a holding web, wherein the fastening element and the holding web are arranged on opposite sides of the connecting element.

[0061] Alternatively, the breathing mask is also characterized in that a base surface of the connecting element comprises a recess which runs from the inner base surface to the outer base surface, whereby the holding web is formed.

[0062] Alternatively, the breathing mask is also characterized by the fact that the recess is crescent-shaped.

[0063] Alternatively, the breathing mask is also characterized in that the holding web is designed to receive a strap, wherein the strap is designed to fasten the breathing mask to the head of a user and / or patient.

[0064] Alternatively, the breathing mask is also characterized in that the fastening element comprises a button plate, an overhang and a neck, wherein the button plate is formed on the connecting element via the neck.

[0065] Alternatively, the breathing mask is also characterized in that the button plate and the neck are round or rounded and each have a maximum diameter, whereby the maximum diameter of the button plate is larger than the maximum diameter of the neck.

[0066] Alternatively, the breathing mask is also characterized in that the receiving element is arranged and designed to releasably receive the connecting element via the fastening element formed on the connecting element.

[0067] Alternatively, the breathing mask is also characterized in that the receiving opening is arranged and designed to receive the neck and guide it into the receiving diameter.

[0068] Alternatively, the breathing mask is also characterized in that the receiving space is arranged and designed to receive the button plate.

[0069] Alternatively, the breathing mask is also characterized in that the connecting element is reversibly connected to the receiving element by receiving the fastening element in the receiving diameter and the receiving space.

[0070] Alternatively, the breathing mask is also characterized in that the connection of the connecting element to the receiving element is movably mounted, in particular rotatably mounted.

[0071] Alternatively, the breathing mask is also characterized in that the connecting element comprises a side wall, wherein the side wall comprises at least one, preferably two grip recesses which are wider than the side wall.

[0072] Alternatively, the breathing mask is also characterized in that the at least one grip recess comprises a grip recess inner wall and a grip recess outer wall, wherein the grip recess outer wall comprises at least one structural element which is designed in the form of ribs, waves, lattice structures, nets and / or points, for example in the form of rib-like elevations. Character list

[0073] The figures show exemplary embodiments of the breathing mask 100 according to the invention. They show: Fig. 1 a breathing mask 100 sideways from the front 520. Fig. 2 a breathing mask 100 without connecting element 80 in a plan view from the front 520. Fig. 3 a breathing mask 100 without connecting element 80 from left 210. Fig. 4 a face part 30 from the front 520 to clarify the directions and positional relationships used herein. Fig. 5 a face part 30 from above 310. Fig. 6 a face part 30 from below 320. Fig. 7 a face part 30 in a front plan view 520. Fig. 8 a section of the face part 30 in a plan view from the front 520. Fig. 9 a perspective view of a section of a facial part 30 from obliquely above 310. Fig. 10 and 11 schematic cross-sections of a guide trough 50. Fig. 12 a schematic overview of a rear gutter edge 51 in the area of a gutter bay 54 in a plan view. Fig. 13a section of a face part 30 in a plan view to show a receiving element 70. Fig. 14 a receiving element 70 in detail in a plan view. Fig. 15 a schematic illustration of a receiving element 70 from the front 520. Fig. 16 a section of a face part 30 from the front 520 to show a receiving element 70 from the front 520. Fig. 17 a connecting element 80 in a plan view from behind 420. Fig. 18 a connecting element 80 in a perspective view obliquely from the front 520. Fig. 19 a connecting element 80 from the side. Fig. 20 the fastening element 90 in detail. Fig. 21 a connecting element 80 which is connected to the receiving element 70 via the fastening element 90. Examples of implementation

[0074] The breathing mask 100 according to the invention can be a mask for ventilation, a mask for respiratory support, or a protective mask. The breathing mask 100 can be a mouth-nose protective mask, a nasal mask, or a full-face mask. In the following exemplary embodiments, a full-face mask for ventilation is shown.

[0075] Further features and advantages of the present breathing mask 100 according to the invention will become clear in the following descriptions of exemplary embodiments with reference to the figures. The invention is not limited to the illustrated exemplary embodiments.

[0076] Fig. 1 to 3 show from different perspectives a breathing mask 100 for breathing and / or ventilation with a forehead part 10, a transition part 20 and a face part 30 as well as a hose connection system 150.

[0077] The forehead part 10 comprises a forehead pad 12, at least one upper anchor point 13 and a connection point 14 (see Fig. 1and 2 ).

[0078] The transition part 20 can connect the forehead part 10 to the face part 30 via the connection point 14. The transition part 20 can be longitudinally adjustable and movably mounted.

[0079] The face part 30 may have a circumferential seal 32 (only in Fig. 1 shown), a coupling point 34, an intermediate member 35, an outlet 36 (not shown), a guide area 50 and at least two anchor points 60 / 61. The at least two anchor points 60 / 61 each comprise a receiving element 70 and a connecting element 80 (only in Fig. 1 shown).

[0080] Fig. 4shows a face part 30 in a front view 520. The face part 30 has a conventional design with an approximately triangular shape. The triangular shape of the face part 30 preferably has rounded corners or tips. The triangular shape preferably has no straight lines, but is slightly curved outward.

[0081] A vertex 40 of the triangle is defined as the upper end or upper end 310. The vertex 40 of the triangle is positioned at a 12 o'clock position and is designed to rest on the bridge of the nose. The other two vertices of the triangle are defined as the lower vertices 43 / 44.

[0082] A base 45 of the triangle connects the two lower corners 43 / 44 and is defined as the lower end or bottom 320. The base 45 of the triangle is designed to rest on the area between the lower lip and chin.

[0083] The lower corner points 43 / 44 are located at a 3 o'clock position and a 9 o'clock position, respectively, when an outlet 36 described below is considered the center of an imaginary clock face. The corner point located at a 3 o'clock position when viewed from the outer side 31 is defined as the lower left corner point 43. The corner point located at a 9 o'clock position when viewed from the outer side 31 is defined as the lower right corner point 44.

[0084] For clarity, a horizontal plane 200 and a vertical plane of symmetry 300 are defined here. The horizontal plane 200 runs horizontally. The horizontal plane 200 defines the maximum width of the face part 30.

[0085] The maximum width of the face part 30 is in a range from 80 mm to 120 mm, preferably from 95 mm to 100 mm. For example, the maximum width of the face part (30) is 98 mm. The two anchor points 60 / 61 are arranged in the area of the maximum width of the face part.

[0086] The plane of symmetry 300 is perpendicular to the horizontal plane 200. In this embodiment, the facial part 30 is mirror-symmetrical, which means that the facial part 30 can be mirrored across the plane of symmetry 300 shown here.

[0087] The concepts of the plane of symmetry 300 and the horizontal plane 200 remain valid here, even if the breathing mask 100 is depicted tilted or rotated and the planes appear different. The plane of symmetry 300 defines the maximum length of the face part 30.

[0088] The maximum length of the face part 30 is in a range from 40 mm to 200 mm, preferably in a range from 80 mm to 140 mm, particularly preferably in a range from 90 mm to 130 mm. For example, the face part can be designed in three size categories, with the maximum length of the face part 30 in a small embodiment being, for example, in a range from 90 mm to 105 mm, in a medium embodiment being, for example, in a range from 105 mm to 116 mm, and in a large embodiment being, for example, in a range from 116 mm to 130 mm.

[0089] The ratio of the maximum width to the maximum length of the face part 30 is, for a predetermined maximum mask width of 98 mm, in a small embodiment, for example, in a range of 1:0.9 to 1:1.07, in a medium embodiment, for example, in a range of 1:1.07 to 1:1.18, and in a large embodiment, for example, in a range of 1:1.18 to 1:1.33.

[0090] Fig. 5 shows a face part 30 viewed from above 310 and Fig. 6 shows a face part 30 viewed from below 320. A front plane 500, a middle plane 450 and a rear plane 400 are sections of the horizontal plane 200 ( Fig. 4 ). The symmetry plane 300 runs perpendicular to the planes 500 / 450 / 300.

[0091] In a use state, the front plane 500 faces away from the patient's face (not shown). In a use state, the rear plane 400 corresponds to the plane of the patient's face (not shown). The distance between the planes 400 and 500 defines the maximum depth of the face part 30.

[0092] An outer side 31 of the face part 30 is, by definition, the side that faces away from the patient's face (not shown) in a use state. The outer side 31 faces the front plane 500 and is accordingly located at the front 520.

[0093] An inner side 41 of the face part 30 is, by definition, the side that, in a use state, faces a face of the patient (not shown). The inner side 41 (only in Fig. 6 shown) faces the rear plane 400 and is located correspondingly rearward 420.

[0094] The face part 30 is made of a plastic, for example. The face part 30 can be manufactured, for example, using an injection molding process. However, other suitable materials and manufacturing processes are also conceivable, depending on their stability, strength, flexibility, temperature resistance, weight, cost, biocompatibility, appearance, and comfort.

[0095] The face piece 30 is preferably made of a hard plastic. Suitable plastics include, for example, polyamides, polycarbonates, polyoxymethylenes, polysulfones, and polypropylenes. For example, the face piece 30 is made of polyamide PA12. The advantages of polyamide PA12 include its excellent temperature resistance, high resilience, and high transparency.

[0096] In the present embodiment, the material of the face piece 30 is a gas-impermeable material. However, it is also conceivable for the face piece 30 to be made of a gas-permeable material.

[0097] Out of Fig. 5 and 6 It can be seen that the outer side 31 of the face part 30 is largely convex and the inner side 41 (see Fig. 6) of the face part 30 is largely concavely curved. Due to the curvature of the face part 30, the outer edge 33 points rearward 420 and a cavity is created between the surface of a face (not shown) and the face part 30 of the breathing mask 100. In a use state, breathing gas is located in this cavity. The cavity is preferably designed to be large enough that the inner side 41 of the face part 30 does not touch the surface of the face. At the same time, the cavity is preferably designed to be as small as possible so that the area in which breathing gas is located is as small as possible. The smallest possible volume is advantageous because this keeps the volume in which mixed gas or CO2 can collect as small as possible.

[0098] Out of Fig. 4 It can be seen that the anchor points 60 / 61 are located in the area of the maximum width of the face part. Fig. 5 and 6It is also apparent that the anchor points 60 / 61 in this embodiment are arranged in an area between the middle level 450 and the rear level 400.

[0099] Advantageously, the anchor points 60 / 61 are located as far down 320 and as far back 420 as possible, thereby increasing the stability of the breathing mask 100 after it is applied to the face. The anchor points 60 / 61 are thus located as close as possible to a patient's face (not shown). However, after being applied to the face, the anchor points 60 / 61 are located so far away from a face (not shown) that a connecting element 80 described below cannot touch the face.

[0100] Fig. 7shows the face piece 30 in a front plan view 520. The face piece 30 comprises, as described above, an outer side 31 and an inner side 41 (not shown here). The face piece 30 is bounded by an outer edge 33. The outer edge 33 is designed to receive a seal 32 described below.

[0101] The face piece 30 typically has a seal 32 (see Fig. 1) which is arranged on the outer edge 33 of the face part 30. The seal 32 is arranged continuously on the entire outer edge 33 of the face part 30. The circumferential seal 32 is designed to rest against the facial skin of a user / patient. The circumferential seal 32 is designed to be flexible in order to adapt to the face of the user / patient. The circumferential seal 32 is preferably made of a flexible plastic, for example silicone. However, other suitable materials that appear suitable in terms of gas sealing, stability, flexibility and comfort are also conceivable.

[0102] In this embodiment, the face piece 30 is designed to be gas-tight against the ambient air. Gas exchange in this embodiment can only take place via the outlet 36 shown below.

[0103] A coupling point 34 can be arranged at the tip 40 of the face piece 30. The face piece 30 can be connected to a forehead piece 10 via the coupling point 34 via a transition piece 20. The coupling point 34 can connect the face piece 30 to the transition piece 20. The coupling point 34 can protrude beyond the outer surface of the face piece 30 and form a projection. A transition piece 20 can be attached to this projecting projection. The coupling point 34 can be designed, for example, as a guide rail.

[0104] The coupling point 34 can be formed in one or two parts. The coupling point 34 is preferably formed in one piece with the face part 30 and made of the same material as the face part 30. In other words, the coupling point 34 is an integral part of the face part 30. However, it is also conceivable for the face part 30 and the coupling point 34 to be formed in two parts. In a two-part design, the face part 30 and the coupling point 34 can be made of the same material. However, it is also conceivable for the coupling point 34 to be made of a different material than the face part 30.

[0105] An intermediate member 35 can be arranged downstream 320 from the coupling point 34. In other words, an intermediate member 35 can be arranged between the coupling point 34 and an outlet 36 described below. Further functional elements can be arranged in the intermediate member 35, in particular measuring nozzles such as a pressure measuring nozzle or a CO2 measuring nozzle or the like (not shown).

[0106] An outlet 36, for example, with a round shape, can be arranged beneath the intermediate member 35 and between the lower corners 43 / 44 of the face piece 30. The outlet 36 can also have any other shape, from round to oval to square. In the case of a protective mask, the outlet can also be formed over a large area from a gas-permeable material. The outlet 36 can be designed as an opening or closed.

[0107] The Fig. 7The outlet 36 shown is designed as a circular opening in the face piece 30. The outlet 36 comprises an outlet edge 37, which can have one or more notch elements 39 and locking elements 38. Via these elements, further connection units can be introduced into the opening, such as, for example, a connection piece for receiving a connecting hose, with which the face piece 30 can be connected to a breathing gas source. A hose connection system 150 (see Fig. 1-3 ) can be connected.

[0108] In other embodiments, it is also conceivable that the outlet 36 is closed. For example, the outlet 36 can be made of a different material than the face piece 30. It is conceivable that the outlet 36 is made of a material that allows gas exchange, whereas the face piece 30 is made of a material that does not allow gas exchange.

[0109] The face part 30 also comprises, as described below, at least one guide region 50 and at least two anchor points 60 / 61, each with a receiving element 70 and a connecting element 80. The guide region 50 is designed to guide a connecting element 80 to a receiving element 70 and is designed, for example, as a guide groove 50.

[0110] Fig. 8 shows a section of the face part 30 in a plan view from the front 520 with the outer side 31 of the face part 30, which includes at least one guide groove 50. Fig. 9 shows a perspective view of a section of a facial part 30 from obliquely above 310.

[0111] The guide channel 50 allows the user and / or the patient to guide a connecting element 80 described below along the guide channel 50. In particular, it is intended to guide a connecting element 80 to a receiving element 70 explained below, which is arranged spatially adjacent to an end region 55 (see below) of the guide channel 50.

[0112] The guide groove 50 can be formed, for example, by a recess 59 in the outer side 31 of the face part 30. It is also conceivable that the guide groove 50 is formed by elevations on the outer side 31 of the face part 30, such as raised guide edges or the like.

[0113] The guide groove 50 is arranged on at least one side of the face part 30, preferably on both sides. Particularly preferably, the guide groove 50 is symmetrical to both sides of the plane of symmetry 300 ( Fig. 4 ) trained.

[0114] Fig. 8 and 9 show, by way of example, an embodiment of the face part 30 with a guide groove 50, which is formed as a recess 59 in the outer side 31. In this embodiment, the guide groove 50 is axially symmetrical across the plane of symmetry 300. For the sake of simplicity, only one of the symmetrical halves of the guide groove 50 is described below.

[0115] The recess 59 of the guide channel 50 ranges from 0.5 mm to 6 mm, preferably from 0.8 mm to 2 mm; for example, the guide channel 50 is essentially 1 mm deep. In specially formed areas of the guide channel 50, the recess 59 may partially have a depth that differs from the rest of the guide channel 50. The degree of the recess 59 is selected such that the guide channel 50 offers safe and easy handling for the user and / or the patient.

[0116] The guide channel 50 can be straight and / or curved. The guide channel 50 can extend over the entire face part 30 or only over parts of the face part 30. The guide channel 50 extends over 5% to 100% of the length of the face part 30, preferably over 50% to 100%, for example over 95% of the length of the face part 30.

[0117] In the illustrated embodiment, the at least one guide groove 50 extends over almost the entire outer side 31 and is arranged to run vertically from the tip 40 to the base 45.

[0118] The guide channel 50 begins at a channel inlet 52. In this embodiment, the channel inlet 52 is located at the tip 40 of the face part 30. It is also conceivable that the channel inlet 52 is located at another point on the face part 30, for example at the base 45.

[0119] The channel inlet 52 forms a transition from the outer side 31 of the face part 30 to the final recess 59 of the guide channel 50 by means of a successive recess.

[0120] In the present embodiment, the recess 59 is formed with a largely constant depth after the channel inlet. The recess 59 can also have different depths. For example, the recess 59 of the guide channel 50 can be formed deeper at an end region 55 of the guide channel 50, described further below.

[0121] The guide trough 50 comprises a rear trough edge 51 and a front trough edge 510. The rear trough edge 51 is the trough edge that is substantially closer to the rear plane 400 and the front trough edge 510 is the trough edge that is substantially closer to the front plane 500 (see also Fig. 5 ).

[0122] In the present embodiment, the rear groove edge 51 and the front groove edge 510 do not have a point of contact. In other embodiments, it is conceivable that the front groove edge 510 and the rear groove edge 51 connect at one or more points, particularly when the outer side 31 of the face piece 30 comprises two or more guide grooves 50.

[0123] In the present embodiment, the groove edges 51, 510 are continuous and have no interruptions.

[0124] In the present embodiment, the groove edges 51, 510 have a nearly smooth surface. It is also conceivable for one of the groove edges 51, 510 and / or both groove edges 51, 510 to have a structure, such as a ribbing.

[0125] A structure of the groove edges 51, 510 could improve the guiding properties, as the user receives tactile feedback about the guidance in the guide groove 50 via the ribbing. For example, the ribbing can also be another uniform or irregular structure. The structure can be formed in the groove edges 51, 510 such that the user who guides a connecting element 80 along a groove edge 51, 510 of the guide groove 50 receives tactile feedback about the approach to the receiving element 70. In this example, the structure of the groove edge 51, 510 would be arranged such that the structure is increasingly or decreasingly more uniform or irregular in the areas of the groove edge 51, 510 that are closer to the receiving element 70.

[0126] The guide channel has a channel width 58. The channel width 58 of the guide channel 50 depends essentially on the position of the rear channel edge 51 relative to the front channel edge 510. The channel width 58 of the guide channel 50 can be constant or can vary.

[0127] The channel width 58 of the guide channel 50 is 6 mm to 12 mm, preferably 8 mm to 12 mm, for example 10 mm wide, at the channel inlet 52. The channel width 58 immediately after the channel inlet 52 is, by definition, channel width 58A.

[0128] A guide trough 50 with a constant trough width 58, which corresponds to the trough width 58A, can run directly from the trough inlet 52 to the end region 55 (see below) of the guide trough 50, which is arranged spatially adjacent to a receiving element 70.

[0129] In Fig. 8 and 9In the illustrated embodiment, the guide channel 50 has different channel widths 58. The guide channel 50 begins at the channel inlet 52 with a channel width 58A. The channel width 58A is constant in a first section. A first section of the guide channel 50 with a substantially constant channel width 58A is referred to herein as channel channel 53.

[0130] In a guide channel 50 with a constant channel width 58, the rear channel edge 51 and the front channel edge 510 run parallel to each other. A parallel course is also achieved with a curved guide channel 50 with a constant channel width 58; in this case, the channel edges 51, 510 describe a parallel curve.

[0131] The channel 53 can extend any length along the face piece 30. For example, the channel 53 extends over 50% of the length of the face piece 30.

[0132] In the present embodiment, the groove width 58 of the guide groove 50 increases after the groove channel 53. The groove width 58B refers to the width of the guide groove 50 that is greater than the groove width 58A. The groove channel 53 ends immediately before the groove width 58B.

[0133] Starting at channel width 58B, the guide channel 50 can be widened. For example, the channel width 58 can increase gradually. The guide channel widens after the channel channel 53 from channel width 58B to the maximum channel width 58C.

[0134] In the present embodiment, the groove width 58 of the guide groove decreases again after the groove width 58C. The groove width 58D corresponds to the groove width 58B. After reaching the groove width 58D, the guide groove 50 in the present embodiment runs along the base 45 and connects at the plane of symmetry 300 with the part of the guide groove 50 that begins in an identical or mirrored form at the upper left end and runs to the base 45.

[0135] In the illustrated embodiment, the connection at the base 45 is less wide than in the upper part of the guide channel 50. At the base there is a groove width 58E which has a smaller width than groove widths 58A or 58B and 58D.

[0136] The widening of the groove width 58 between the groove widths 58B and 58D is accompanied by a diverging of the front groove edge 510 and the rear groove edge 51. Starting at the groove width 58B, the front groove edge 510 runs essentially perpendicularly along the outlet 36 and runs close to the plane of symmetry 300.

[0137] Starting at the channel width 58B, the rear channel edge 51 moves away from the plane of symmetry 300 and extends toward the rear plane 400, so that the guide channel 50 widens in the horizontal plane 200. The channel width 58C is the widest point of the guide channel 50 in the horizontal direction. Starting at the channel width 58C, the rear channel edge 51 again extends toward the plane of symmetry 300.

[0138] The horizontal profile of the guide channel 50 between the channel width 58B and the channel width 58D is bay-shaped and is referred to as the channel bay 54. Bay-shaped, by definition, means that due to an arcuate receding of the rear channel edge 51, the guide channel 50 has the shape of a bay or an open arch in this area. The channel bay 54 can, for example, have a round profile; a square profile is also conceivable. The channel bay 54 is enclosed by the rear channel edge 51.

[0139] In the illustrated embodiment, the guide channel 50 ends in the horizontal plane 200 at an end region 55. The end region 55 is maximally removed in the horizontal direction from the plane of symmetry 300 ( Fig. 5 ) are arranged.

[0140] The end region 55 lies on a plane with a channel bottom 56 described further below and is spatially adjacent to a receiving element 70 that spans the guide channel 50 in this end region 55. In the present embodiment, the end region 55 is enclosed in a bay-like manner by the rear channel edge 51.

[0141] The end region 55 can be deeper than the rest of the guide groove 50. The recess 59 in the end region 55 is between 1 mm and 6 mm deep. For example, the recess 59 in the end region is 4 mm deep.

[0142] In Fig. 10 and 11 Exemplary schematic cross-sectional views of a guide trough 50 are shown. The guide trough 50 comprises a trough bottom 56, a rear trough edge 51, a front trough edge 510, and a trough width 58.

[0143] The guide channel 50 is delimited by the channel bottom 56. In the present embodiment, the channel bottom 56 has a nearly smooth surface. It is also conceivable for the channel bottom 56 to have a structure, such as a ribbing. A structure could improve the guiding properties, since the ribbing provides the user with tactile feedback about the guidance in the guide channel 50. For example, the ribbing can also be another uniform or irregular structure. The structure can be formed in the guide channel 50 in such a way that the user, who guides a connecting element 80 along the guide channel 50, receives tactile feedback about the approach to the receiving element 70.In this example, the structure in the guide channel 50 would be arranged such that the structure is increasingly or decreasingly more uniform or non-uniform in the areas of the guide channel 50 that are closer to the receiving element 70.

[0144] The guide channel 50 is laterally limited by the rear channel edge 51 and the front channel edge 510. As can be seen from Fig. 10 / 11 As can be seen, the channel edge 51, 510 can, for example, run straight from the outer side 31 to the channel bottom 56. A convex or concave curvature of the channel edge 51 and / or 510 is also conceivable.

[0145] An angle α1 and an angle α2 describe the angle at which the rear channel edge 51 and the front channel edge 510 are arranged on the channel bottom 56. The angles α1 and α2 can be constant. The angles α1 and / or α2 can have different values along the length of the guide channel. The angles α1 and α2 are formed independently of each other.

[0146] The channel edge 51, 510 can be arranged at an angle α1, α2 of 90° perpendicular to the channel bottom 56 ( Fig. 11 A) .

[0147] Preferably, the channel edge 51, 510 is inclined, for example inclined outwards ( Fig. 10 and 11 B). For example, the channel edge 51, 510 can be arranged at an obtuse angle α1, α2 on the channel bottom. The angle α1, α2 can be 90° to 180°, preferably 90° to 135°. In advantageous embodiments, the angle α2 can be, for example, between 90 and 95°, and the angle α1 can be configured to vary between 90 and 135°.

[0148] An angle α1, α2 > 90° is suitable if the face part 30 is manufactured by injection molding, as the face part 30 can then be easily removed from the mold. Furthermore, cleaning of an outwardly inclined guide groove 50 is facilitated.

[0149] The angle α1, α2 can also be less than 90°, so that the channel edge 51, 510 is arranged inclined inwards (see Fig. 11 C) .

[0150] An embodiment with an angle α1, α2 < 90° could be advantageous, since an inwardly inclined channel edge 51, 510 can offer better and safer guiding properties for the connecting element 80.

[0151] For example, an inwardly projecting overhang 57 on the channel edge 51 and / or on the channel edge 510 could be particularly advantageous for the application (see Fig. 11 AD , Row 3). An inwardly projecting overhang 57 could improve the guiding properties of the guide trough 50, since components of the connecting element 80, such as the button plate 91 described below, can be guided between the overhang 57 and the trough bottom 56, which can increase the guiding reliability.

[0152] The transition from the channel bottom 56 to the channel edge 51, 510 can be angular ( Fig. 11 AC ) or rounded ( Fig. 11 D) A rounded transition can be advantageous for cleaning.

[0153] Angles β1 and β2 describe the angles at which the rear channel edge 51 and the front channel edge 510 are arranged relative to the outer side 31. Angles β1 and β2 can, for example, be constant. It is also conceivable that angle β1 and / or angle β2 have different values along the length of the guide channel. Angles β1 and β2 are formed independently of one another.

[0154] The channel edge 51, 510 can slope vertically from the outer side 31 at an angle β1, β2 of 90° ( Fig. 11 A) .

[0155] In the present embodiment, the angle β1, β2 is greater than 90° ( Fig. 10 and 11 B + D). For example, the channel edge 51, 510 can be arranged at an obtuse angle β1, β2 to the outer side 31. The angle β1, β2 can be 90° to 180°, preferably 90° to 135°. In advantageous embodiments, the angle β2 can be, for example, between 90 and 100°, and the angle β1 can be configured to vary between 90 and 135°.

[0156] It is also conceivable that the channel edge 51, 510 is arranged at an acute angle β1, β2 of, for example, 45 to 90 ° to the outer side 31 ( Fig. 11 C) .

[0157] The transition from the outer side 31 to the channel edge 51, 510 can be angular (see Fig. 11 , row 1 + 3) or rounded (see Fig. 11 , row 2). A rounded transition can be advantageous for cleaning.

[0158] The groove width 58 of the guide groove 50 depends on the orientation of the groove edge 51, 510 and the angles α1, α2 and β1, β2 as well as on the width of the groove bottom 56. In the present embodiment, the groove width 58 is wider than the groove bottom 56 ( Fig. 10 and 11 B ). The channel width 58 can also be narrower ( Fig. 11 C) or the same width ( Fig. 11 A) as the channel bottom 56. The ratio of the channel width 58 to the width of the channel bottom 56 can, for example, be constant. However, the ratio can also change along the guide channel 50.

[0159] Fig. 12 shows a schematic overview of the rear channel edge 51 in the area of the channel bay 54 in a plan view. The receiving element 70 spanning this area and described below is not shown.

[0160] The channel bottom 56 of the channel bay 54 has different widths. The channel bottom 56 of the channel bay 54 decreases in width horizontally. This means that a first channel bay width W1 is larger than a second channel bay width W2, and the channel bay width W2 is larger than a third channel bay width W3.

[0161] The groove width W1 is the width of the groove bottom 56, which is created by the horizontal extension of the rear groove edge 51 between the groove width 58B and the groove width 58D. The groove width W2 is defined as the width of the groove bottom 56 between two front web projections 73A (described further below). The groove width W3 is defined as the width of the groove bottom 56 between an upper center web projection 75A and a lower center web projection 75B (described further below).

[0162] The end region 55 of the guide trough 50 is located at the horizontal end of the guide trough 50 in the trough bay 54 between a trough bay width W2 and a trough bay width W3.

[0163] The height of the rear channel wall 51 and thus the recess 59 of the guide channel 50 can be constant in the region of the channel recess 54. Advantageously—and illustrated in this embodiment—the height of the rear channel wall 51 increases in the region of the channel recess 54. The height of the rear channel edge 51 can increase successively from width 1 to width 3 along the channel recess 54.

[0164] Due to the raised channel edge 51 in the area of the channel bay 54 and thus also in the end area 55, the three-dimensional extension of the guide channel 50 increases in this end area 55.

[0165] The guide channel 50, and in particular the channel edges 51, 510, enable the user and / or patient to reach the end region 55. The user and / or patient can reach the end region 55, for example, by feeling.

[0166] It is specifically intended that the user and / or the patient can move along the groove edge 51 and / or 510 with their fingers or in particular with the connecting element 80 described below and thus reach the end region 55.

[0167] In the present embodiment, the horizontal course of the guide channel 50 is bay-shaped 54. This enables the user and / or the patient to reach an end region 55 located in the channel bay 54 by orienting themselves on the rear channel edge 51.

[0168] For example, the user and / or the patient can guide a connecting element 80, described below, along the rear channel edge 51 to the end region 55, where it can be attached to the breathing mask 100 by being received in a receiving element 70, as described below.

[0169] As from Fig. 4 As can be seen, in this exemplary embodiment, two anchor points 60 / 61 are arranged at the two lower corner points 43 / 44 of the face part 30. It is also conceivable that additional anchor points are arranged on the face part 30. Additional anchor points could also be arranged away from the lower corner points 43 / 44, for example, further up 310.

[0170] The anchor points 60 / 61 are arranged on both sides of the symmetry plane 300 and accordingly represent a left anchor point 60 and a right anchor point 61 as shown above. The anchor points 60 / 61 are preferably as far away as possible from the symmetry plane 300.

[0171] Out of Fig. 5 It can be seen that, for example, the two anchor points 60 / 61 are arranged between the middle level 450 and the rear level 400. The anchor points 60 / 61 each comprise a receiving element 70 and a connecting element 80.

[0172] The outer side 31 comprises a receiving element 70 at each of the anchor points 60 / 61. Fig. 13 to 16 show an embodiment of a receiving element 70.

[0173] Fig. 13 shows the receiving element 70 in a top view. The receiving element 70 is an integral part of the outer side 31 and the rear channel edge 51.

[0174] The receiving element 70 is advantageously made of a material that, on the one hand, exhibits a certain degree of flexibility and low sensitivity to stress cracking, while, on the other hand, offering sufficient stability. The receiving element 70 is, for example, a single piece made of the same material as the face piece 30. A two-piece design is also conceivable. The receiving element 70 is, for example, made of polyamide PA12. Polyamide PA12 is very stable, exhibits low sensitivity to stress cracking, and is temperature-resistant.

[0175] The receiving element 70 is arranged between the width W2 and the width W3 of the channel bay 54 (see Fig. 12 ) and spans the end region 55 of the guide groove 50.

[0176] In the present exemplary embodiment, the receiving element 70 comprises two webs 73, a bridge 74, a receiving diameter Y and a receiving opening X. The receiving element can also comprise, for example, at least one central web 75 and at least one, preferably two, openings 76.

[0177] Fig. 14 shows the receiving element 70 in a more detailed top view. Fig. 15 shows a schematic illustration of the receiving element 70 from the front 520. Fig. 16 shows a section of a face part 30 from the front 520 to illustrate a receiving element 70 from the front 520.

[0178] The webs 73 extend from the rear channel edge 51. The webs 73 rise above the channel bottom 56 of the guide channel 50 and have essentially no contact with the channel bottom 56 (see Fig. 15 ). The webs are connected to the rear channel edge 51 via web attachment surfaces 73F.

[0179] The web attachment surfaces 73F are between 3 mm and 6 mm, for example 5 mm wide, and extend from a front web attachment 73A to a rear web attachment 73B.

[0180] The width of the webs 73 can be wider at the web attachment surface 73F (for example, 5 mm). The width of the webs 73 can decrease further along the width to a range of 4 mm to 1 mm. The webs are essentially 3.3 mm wide, for example.

[0181] The webs 73 can, for example, have a constant material thickness. The webs 73 are between 1 mm and 4 mm thick, for example, 2 mm. The webs 73 can be 2 mm to 20 mm long, for example, 14 mm. The webs 73 are designed to be coordinated in width, length, and thickness to ensure sufficient flexibility.

[0182] The webs 73 can, for example, be curved or bent. This means that the webs do not have to be straight.

[0183] An angle ε describes the angle at which the webs 73 are arranged to the channel bottom 56 (see Fig. 15 ). The webs 73 can be arranged at an angle ε of 90° perpendicular to the channel bottom 56. Preferably, the webs 73 are arranged at an angle ε of 30° to 90°, for example at an angle ε of 30° to 60°, to the channel bottom 56.

[0184] A bridge 74 is arranged adjacent to the webs 73. The bridge 74 and the webs 73 are formed, for example, in one piece.

[0185] In this embodiment, the bridge 74 is formed in width and thickness equivalent to the webs 73, whereas the bridge 74 may be formed longer than the webs 73.

[0186] The bridge 74 is 1 mm to 4 mm thick, for example, 2 mm. The bridge 74 can be 10 mm to 30 mm long, for example, 14 mm. The bridge 74 is 1 mm to 4 mm wide, for example, 2.3 mm.

[0187] The bridge 74 is, for example, circular. The bridge 74 is not a closed circular shape, but is interrupted by a receiving opening X. The receiving opening X is between 3 mm and 12 mm wide, preferably between 5 mm and 8 mm, for example 5.8 mm.

[0188] The receiving opening X is oriented toward the front 520. Due to the receiving opening X, the bridge 74 is approximately semicircular. The receiving opening X is designed to receive a neck 93 of the connecting element 80, described below.

[0189] The receiving opening X is slightly smaller than the diameter of the neck 93D, so that the neck can only be received by applying pressure and a slight flexibility of the receiving element 70.

[0190] The bridge 74 has a receiving diameter Y. The receiving diameter Y of the bridge 74 is between 3 mm and 12 mm, preferably between 5 mm and 8 mm, for example 6.2 mm.

[0191] The receiving diameter Y is slightly larger than the receiving opening X. The receiving diameter Y is designed to receive a neck 91, described below, of the connecting element 80. The receiving diameter Y is slightly larger than the diameter of the neck 93D.

[0192] Because the webs 73 are curved and rise above the channel bottom 56 at an angle ε, the receiving space 77 is created between the webs 73, the bridge 74 and the channel bottom 56 (see Fig. 15 and Fig. 16 ).

[0193] The receiving room 77 is located at the end area 55 (see Fig. 13). The receiving space 77 has a height of 2 mm to 8 mm, for example, 4 mm. The receiving space 77 is designed to accommodate a button plate 91, described below, including the overhang 92 of the connecting element 80. The depth of the receiving space 77 is therefore greater than the length of the button plate 91L.

[0194] The at least one central web 75 connects the bridge 74 with the outer side 31. In the present embodiment, the central web 75 is located on the half of the semicircular bridge 74 ( Fig. 13 ).

[0195] Out of Fig. 14It can be seen that the central web 75 is connected to the rear groove edge 51 via a central web attachment surface 75F. The central web attachment surface 75F is between 1 and 6 mm wide, for example 3 mm, and extends from an upper central web attachment surface 75A to a lower central web attachment surface 75B. The width of the central web 75 can be wider at the central web attachment surface 75F, for example 3 mm, and decrease in width further along to, for example, 2 mm.

[0196] The width of the central web attachment surface 75F from the upper central web attachment 75A to a lower central web attachment 75B corresponds to the width W3 of the channel funnel described above (see Fig. 12 ).

[0197] The at least one opening 76, in this embodiment the two openings 76, are arranged between the central web 75 and the webs 73. The openings 76 enable a lighter construction and material savings. Furthermore, depending on the material selected, a degree of flexibility can be achieved, ensuring easy engagement and release of the connecting element 80.

[0198] It is also conceivable that the receiving element 70 is designed without openings 76 and central web 75. In this case, the rear channel wall 51 and the outer side 31 would merge directly into the bridge 74 and webs 73 (not shown).

[0199] The Figures 17 to 19 show an embodiment of a connecting element 80 according to the invention. Fig. 17 shows a connecting element 80 in a plan view from behind 420. Fig. 18 shows a connecting element 80 in a perspective view obliquely from the front 520. Fig. 19a connecting element 80 from the side.

[0200] The connecting element 80 is a detachable component of the breathing mask 100. The connecting element 80 can be made of any material that has sufficient stability. The connecting element 80 is preferably made of the same material as the face piece 30. The connecting element 80 is preferably made of a hard plastic. Suitable plastics include, for example, polyamides, polycarbonates, polyoxymethylenes, polysulfones, and polypropylenes. For example, the connecting element 80 is made of polyamide PA12. The connecting element 80 is made entirely of polyamide PA12, for example. It is also conceivable for different components of the connecting element 80 to be made of different materials.

[0201] Fig. 17shows an exemplary embodiment of the connecting element 80 in a plan view from the rear 420. This view depicts the surface that faces the face part 30 (not shown) after attachment to the receiving element 70. By definition, this surface is the inner base surface 84 of the connecting element 80. In this embodiment, the connecting element 80 has a hexagonal base surface. The base surface can also have any other suitable shape.

[0202] The base surface is flat. Thus, in this embodiment, the base surface of the connecting element 80 is not curved or arched. However, it is also conceivable for the base surface of the connecting element 80 to be curved or arched.

[0203] The connecting element 80 comprises a fastening element 90. By definition, the fastening element 90 is located at the upper end 94 of the connecting element 80. The connecting element 80 also comprises a retaining web 83 and a recess 82. By definition, the retaining web 83 and recess 82 are located at the lower end 95 of the connecting element 80. Thus, the fastening element 90 and the retaining web 83 are located on opposite sides of the connecting element.

[0204] The connecting element 80 can be manually attached to the face piece 30, more precisely to the receiving element 70 of the face piece 30, via the fastening element 90. The attachment is reversible, meaning that the attachment can be manually established and released at any time without the material undergoing any permanent change.

[0205] A strap 96 (not shown) can pass through the recess 82. The strap 96 can pass over the retaining bar 83 and serves to secure the breathing mask 100 to the head (not shown) of a user and / or patient.

[0206] In this embodiment, the connecting element 80 is axially symmetrical about a y-axis.

[0207] The connecting element 80 has a length in a range from 100 mm to 10 mm, preferably from 50 mm to 20 mm, for example 35 mm. The connecting element 80 has a maximum width of 80 mm to 10 mm, preferably from 40 to 20 mm, for example 27 cm. The base area of the connecting element 80 has a thickness of 1 mm to 3 mm, for example 2 mm.

[0208] Fig. 18 shows a connecting element 80 in a perspective view obliquely from the front 520. Fig. 18It can be seen that the connecting element 80 comprises a circumferential side wall 85 with at least one, preferably two, recessed grips 86. The recessed grips 86 comprise at least one structural element 88.

[0209] The connecting element 80 has a total length of, for example, 35 mm (see above). The grip recesses 86 have a length of 5 mm to 30 mm, preferably 10 to 20 mm, for example 17 mm. In other words, the grip recess 86 preferably extends over approximately 50% of the length of the connecting element 80.

[0210] Fig. 19 shows a connecting element 80 from the side. Fig. 19 It is evident that the side wall 85 can be configured with different widths. The width of the side wall 85 lies in a range from 20 mm to 1 mm, preferably from 15 mm to 1 mm. In this embodiment, the side wall 85 is approximately 2 mm wide at the upper end 94. (B1) and increases in width.

[0211] The side wall 85 has the greatest width of approximately 10 mm at the level of the recessed grips 86 (B5) After the recessed grips 86, the side wall 85 tapers back to its initial width (B1). Thus, in this embodiment, the grip recess 86 is approximately 5 times as wide as the side wall 85 at the upper end 94 or at the lower end 95 of the connecting element 80.

[0212] The grip recesses 86 serve to grasp the connecting element 80 with two fingers, for example, the index finger and thumb. The length and width of the grip recess 86 are preferably selected such that the user and / or the patient can easily and securely grasp the connecting element 80 with two fingers.

[0213] The outer wall 87 of the grip recesses, i.e., the side wall 85 at the level of the grip recesses 86, has at least one, preferably several, for example, six, structural elements 88. The structural elements 88 serve to increase the grip of the grip recesses 86.

[0214] The at least one structural element 88 comprises, for example, at least one elevation, e.g. in the form of ribs, waves, grid structures, nets, dots or the like. In the present embodiment, the structural elements 88 are designed in the form of rib-like elevations which are arranged on the grip recess outer wall 87.

[0215] The grip of the recessed grips 86 is increased by the structural elements 88 of the recessed grip outer wall 87. The shape of the structural elements 88 is selected such that they are optimally designed in terms of grip, comfort, and stability.

[0216] The inner wall of the recessed grip 89, however, is preferably smooth (see Fig. 18 ). A smooth design of the grip recess inner wall 89 is advantageous because it saves material and thus weight, and the grip recess inner wall 89 can be cleaned more easily and efficiently.

[0217] The connecting element 80 comprises a fastening element 90. Fig. 20 shows the fastening element 90 in detail. Connecting element 80 and fastening element 90 can be formed as one or two parts. In this exemplary embodiment, connecting element 80 and fastening element 90 are formed as one part. The fastening element 90 is a component of connecting element 80, and connecting element 80 and fastening element 90 are made of the same material.

[0218] The fastening element 90 comprises a button plate 91, an overhang 92 and a neck 93. The button plate 91 is connected to the inner base surface 84 of the connecting element 80 via the neck 93.

[0219] The neck 93 is round or rounded and has a maximum diameter 93D of 3 mm to 12 mm, for example 6 mm. The diameter 93D is designed so that the neck 93 can be pushed through the receiving opening X ( Fig. 13) can be guided. The diameter 93D is designed so that it is slightly larger than the receiving opening X. The diameter 93D is designed so that it is slightly smaller than the receiving diameter Y ( Fig. 13 ).

[0220] The button plate 91 is round or rounded and has a maximum diameter 91D of 3 mm to 14 mm, for example, 8 mm. The diameter of the button plate 91D is larger than the diameter of the neck 93D.

[0221] When the neck 93 is passed through the receiving opening X into the receiving diameter Y, the button plate 91 enters the receiving space 77. The button plate 91 serves to fix the receiving element 70 ( Fig. 15 ). A recess 97 open on one side can advantageously be arranged in the button plate 91. The recess 97 prevents material from accumulating in the plastic component of the button plate.

[0222] Out of Fig. 20It can be seen that the diameter of the button plate 91D is larger than the diameter of the neck 93D and that the transition from the neck 93 to the button plate 91 is straight on the upper side. Since the diameter of the button plate 91D is larger than the diameter of the neck 93D, the button plate 91 protrudes beyond the diameter of the neck 93D, creating an overhang 92. The button plate 91 thus encompasses the overhang 92, which protrudes beyond the circumference of the neck 93D.

[0223] The diameter of the neck 93D gradually transitions into the diameter of the button plate 91D along a maximum length 92L of the overhang. An angle δ describes the angle at which the overhang 92 is arranged to the neck 93. The angle δ can be, for example, 90 to 135°.

[0224] The neck 93 has an upper length 93L1 and a lower length 93L2, with the upper length 93L1 being less than the lower length 93L2. In the view according to Fig. 20The neck is therefore arranged at an angle γ to the side wall 85. The angle γ can be, for example, 90° to 135°.

[0225] The connecting element 80 has a recess 82 and a retaining web 83 on the side opposite the fastening element 90 (see Fig. 17 and 18 ). Thus, the recess 82 and the retaining web 83 are located at the lower end 95 of the connecting element 80. The retaining web 83 is created by the fact that the base surface of the connecting element 80 has the recess 82. The retaining web is formed as part of the side wall 85 of the connecting element 80 and is arranged at the lower end 95 of the connecting element 80.

[0226] The recess 82 is designed to accommodate a strap 96 (not shown). The flat side of the strap 96 can pass through the recess and over the retaining web 83. The size and shape of the recess 82 are such that the strap 96 can be easily and securely passed through the recess. In this embodiment, the recess 82 is formed as an elongated opening. The recess has a crescent-shaped curvature.

[0227] The recess 82 is between 80 mm and 10 mm wide, preferably between 40 mm and 15 mm, for example, 22 mm. The recess 82 is between 25 mm and 2 mm high, preferably between 10 mm and 3 mm, for example, 4.1 mm. Advantageously, the recess 82 is wide enough to accommodate a suitable strap 96. Furthermore, the recess 82 is high enough to allow the strap 96 to pass comfortably through the recess.

[0228] The recess 82 is delimited by the base area of the connecting element 80. At the lower end 95 of the connecting element 80, the recess 82 is delimited by the side wall 85. The side wall 85 at the lower end 95 comprises the holding web 83. In other words, the holding web 83 is formed because the base area of the connecting element 80 has a recess 82.

[0229] The retaining web 83 is sized and shaped to securely hold the strap 96. In this embodiment, the retaining web 83 is made of the same material as the connecting element 80. In other words, the retaining web 83 is a component of the connecting element 80.

[0230] The retaining web 83 has a varying thickness. The thickness of the retaining web is between 10 mm and 1 mm, for example, between 5 mm and 2 mm. The thickness of the retaining web is greatest in the center, for example, 4 mm, and decreases to a width of 2.3 mm at each side. Advantageously, the retaining web 83 is designed to be wide enough to withstand the tensile force that a suitable strap 96 can exert on the connecting element 80.

[0231] Fig. 21 shows a connecting element 80 that is connected to the receiving element 70 via the fastening element 90. The receiving element 70 can be manually connected to the connecting element 80. The connection between the receiving element 70 and the connecting element 80 is reversible. The connecting element 80 is movably mounted after the receiving element 70 and the connecting element 80 have been connected. In particular, the connecting element 80 is mounted for rotational movement.

[0232] The guide channel 50 enables the user and / or the patient to guide the connecting element 80 to the receiving element 70. The fastening element 90 of the connecting element 80 can, for example, be attached to a channel inlet 52 ( Fig. 8 ) into the guide groove 50. The button plate 91 of the fastening element 90 can then be mounted on the groove bottom 56 and on the groove edges 51 and / or 510 ( Fig. 8 ). The groove edges 51, 510 serve for orientation and lead in the direction of the end region 55 of the guide groove, which is spanned by the receiving element 70.

[0233] When the end region 55 is reached, the button plate 91 of the connecting element 80 can enter the receiving space 77 in such a way that the neck 93 passes through the receiving opening X ( Fig. 13 / 14 ) into the receiving diameter Y ( Fig. 13 / 14) and is there largely enclosed by the central web 74. As a result, the button plate 91 and the overhang 92 are located in the receiving space 77, which leads to a fixation on the receiving element 70.

[0234] Because the receiving opening X is minimally smaller than the diameter of the neck 93D, and because the material of the receiving element 80 is somewhat flexible, the fastening element 90 can be guided through the receiving opening X into the receiving space 77 and the receiving diameter Y with only slight pressure. The locking of the fastening element 90 into the receiving element can be felt and heard.

[0235] As soon as the fastening element 90 is located in the receiving space 77 and the receiving diameter Y, the fastening element 90 can no longer be removed from these without the application of force.

[0236] Since the receiving diameter Y is minimally larger than the diameter of the neck 93D of the fastening element 90, the connection is movable, in particular rotatably mounted.

[0237] By connecting the at least two connecting elements 90 to the face piece 30, the user and / or the patient can easily, securely and reversibly attach the breathing mask 100 to the head via a strap 96 (not shown) located on the connecting element 90.

[0238] The guide channel 50 offers the patient and / or user simple and safe handling. Attaching the breathing mask 100 to the head is possible even with limited or no visibility, as sufficient tactile feedback is provided by the above-mentioned properties of the guide channel 50. The orientation of the breathing mask 100 and the position of the receiving element 80 are easily detectable by touch.

[0239] Furthermore, the connection of the connecting element 80 to the receiving element 90 is easy to handle and requires no special dexterity. The user can easily and securely grasp the connecting element 80 by the grip recesses 86, guide it along the guide groove to the receiving element 80, and then push the fastening element 90 through the receiving opening X with light pressure. The user does not need to operate any additional elements for this. List of reference symbols

[0240] breathing mask 100 Hose connection system 150 Horizontal plane 200 left 210 right 220 plane of symmetry 300 above 310 below 320 Rear level 400 rear 420 Middle level 450 Front level 500 in front 520 forehead part 10 Forehead cushion 12 Upper anchor point 13 liaison office 14 Transition part 20 facial part 30 outside 31 seal 32 Outer edge 33 coupling point 34 intermediate link 35 Outlet 36 Outlet edge 37 Snap-in element 38 Notch element 39 Great 40 inside 41 Lower left corner point 43 Lower right corner point 44 base 45 guide trough 50 Rear gutter edge 51 Front gutter edge 510 Gutter inlet 52 channel channel 53 Gutter bay 54 End area 55 Gutter bottom 56 Overhang 57 Gutter width 58 Gutter width A 58A Gutter width B 58B Gutter width C 58C Gutter width D 58D Gutter width E 58E Gutter bay width 1 W1 Gutter bay width 2 W2 Gutter bay width 3 W3 Angle α α1 Angle α α2 Angle β β1 Angle β β2 Deepening 59 Left anchor point 60 Right anchor point 61 Receiving element 70 Recording opening X Mounting diameter Y web 73 Bridge attachment surface 73F Anterior bridge approach 73A Posterior bridge attachment 73B Angle ε ε Bridge 74 Central bridge 75 Central bridge attachment surface 75F Upper central bridge approach 75A Lower central bar approach 75B breakthrough 76 recording room 77 connecting element 80 Outer footprint 81 recess 82 Holding bridge 83 Inner floor area 84 side wall 85 Sidewall width B1 B1 Sidewall width B5 B5 recessed grip 86 Recessed grip outer wall 87 Structural element 88 Grip recess inside wall 89 Fastening element 90 Button plate 91 Diameter of the button plate 91D Length of the button plate 91L Overhang 92 Maximum length of overhang 92L Neck 93 Diameter of the neck 93D Upper end 94 Lower end 95 Banding 96 Hollowing out 97 Y-axis YA

Claims

1. A breathing mask (100) with a face part (30), which comprises at least one plane of symmetry (300), a circumferential seal (32) for placing on the face of a patient, and an outlet (36), wherein the face part (30) has an outer side (31) that faces away from the face of the patient during use of the breathing mask (100), wherein the face part (30) has at least two anchor points (60 / 61) that are arranged on both sides of the plane of symmetry (300), and wherein the at least two anchor points (60 / 61) each comprise a receiving element (70) for detachably connecting to a connecting element (80) and wherein the connecting element (80) is designed to receive a strap (96), characterized in that at least one guide area (50) for guiding the connecting element (80) to the receiving element (70) is arranged adjacent to the receiving element (70), which guide area is formed by an indentation (59) in the outer side (31) of the face part (30) as a guide groove, wherein the guide area (50) is formed by elevations on the outer side (31) of the face part (30).

2. The breathing mask (100) according to one of the preceding claims, characterized in that the guide area (50) is arranged on the face part (30) on both sides of the plane of symmetry (300).

3. The breathing mask (100) according to one of the preceding claims, characterized in that the guide groove (50) runs over 5% to 100% of the length of the face part (30), preferably over 50% to 100%, for example over 95% of the length of the face part (30).

4. The breathing mask (100) according to one of the preceding claims, characterized in that the guide groove (50) comprises a groove run-in region (52), which, due to a successive indentation, forms a transition from the outer side (31) to the final indentation (59), wherein the groove run-in region (52) is arranged at an upper end (310) of the face part (30).

5. The breathing mask (100) according to one of the preceding claims, characterized in that the guide groove (50) comprises a groove floor (56), a rear groove edge (51), a front groove edge (510), and an end area (55), wherein the end area (55) is an area of the groove floor (56) that is surrounded by at least one of the groove edges (51, 510).

6. The breathing mask (100) according to claim 5, characterized in that the surface of the groove floor (56) is smooth and / or structured.

7. The breathing mask (100) according to claim 5, characterized in that the surface of the groove edges (51, 510) is smooth and / or structured.

8. The breathing mask (100) according to one of the preceding claims, characterized in that the height of the groove edges (51, 510) is constant and / or of different heights, such that the indentation (59) of the guide groove (50) is constant and / or of different depths, wherein the indentation (59) is in a range from 0.5 mm to 6 mm deep.

9. The breathing mask (100) according to one of the preceding claims, characterized in that the indentation (59) is of different depths, wherein the indentation (59) in the end area (55) is between 1 mm and 6 mm deep, preferably 4 mm deep, wherein the indentation (59) in the other areas of the guide groove (50) is substantially 0.8 mm to 2 mm deep, preferably 1 mm deep.

10. The breathing mask (100) according to one of the preceding claims, characterized in that the guide groove (50) has different groove widths (58), wherein a first portion is designed as a groove channel (53) with a constant groove width (58A) and wherein the groove width (58) after the groove channel (53) increases successively through a groove width (58B) to a groove width (58C) and wherein, after reaching the groove width (58C), the groove width (58) decreases successively through a groove width (58D) to a groove width (58E).

11. The breathing mask (100) according to claim 10, characterized in that, in the area of the groove width (58C), the rear groove edge (51) is arranged at a maximum distance from the plane of symmetry (300) and the front groove edge (510) is arranged maximally close to the plane of symmetry (300).

12. The breathing mask (100) according to one of claims 5 to 11, characterized in that, in an area between the groove widths (58B) and (58D), the rear groove edge (51) recedes in an arc shape such that the guide groove (50) is designed in this area as a groove protrusion (54) which comprises the end area (55), wherein the end area (55) is arranged at a maximum distance from the plane of symmetry (300).

13. The breathing mask (100) according to claim 12, characterized in that the groove protrusion (54) is surrounded by the rear groove edge (51), wherein a horizontal course of a groove protrusion width (W) decreases successively as the distance from the plane of symmetry increases.

14. The breathing mask (100) according to one of claims 5 to 13, characterized in that the height of the rear groove edge (51) can increase in the area of the end area (55).

15. The breathing mask (100) according to one of claims 5 to 14, characterized in that the end area (55) of the guide groove (50) is arranged spatially adjacent to the receiving element (70), wherein the receiving element (70) spans the end area (55) of the guide groove (50) such that a receiving space (77) is formed.

16. The breathing mask (100) according to one of the preceding claims, characterized in that the receiving element (70) comprises two webs (73), a bridge (74), a receiving diameter (Y), and a receiving opening (X), wherein the bridge (74) is manufactured in one piece with the webs (73) and wherein the bridge (74) is arranged spatially separate from the groove floor (56), wherein the webs (73), the bridge (74), and the groove floor (56) delimit the receiving space (77).

17. The breathing mask (100) according to claim 16, characterized in that the webs (73) are arranged at an angle ε to the groove floor (56), wherein the value of the angle ε is in a range from 30° to 90°, preferably in a range from 30° to 60°.

18. The breathing mask (100) according to claim 16, characterized in that the bridge (74) is circular at least in portions with a receiving diameter (Y) and wherein the bridge (74) is interrupted by a receiving opening (X).

19. The breathing mask (100) according to one of the preceding claims, characterized in that the receiving element (70) comprises at least one central web (75) and at least one, preferably two cut-outs (76), wherein the central web is arranged between the bridge (74) and the outer side (31).

20. The breathing mask (100) according to one of claims 16 to 19, characterized in that the receiving opening (X) is oriented forward (520).

21. The breathing mask (100) according to one of the preceding claims, characterized in that the connecting element (80) is a detachable part of the breathing mask (100), wherein the receiving element (70) is configured and designed to detachably receive the connecting element (80) via a fastening element (90) formed on the connecting element (80).

22. The breathing mask (100) according to one of the preceding claims, characterized in that the connecting element (80) is manufactured from the same material as the face part (30).

23. The breathing mask (100) according to one of the preceding claims, characterized in that the connecting element (80) is reversibly connected to the receiving element (70) by receiving the fastening element (90) in the receiving diameter (Y) and the receiving space (77).

24. The breathing mask (100) according to one of the preceding claims, characterized in that the connection of the connecting element (80) to the receiving element (70) is mounted in a movable manner, in particular rotationally movable.