DE2160561C3 - Device for treating the respiratory tract with warm air - Google Patents

Description

Subject of the main patent

Device for treating the respiratory tract with warm air in which the air is applied to the patient's face A mask to be put on is provided with a heating device controlled by a thermostat Upstream space and pin in the airflow Capillary system containing liquid storage is arranged, characterized in that this as Hollow cylinder formed and the heating element surrounding liquid reservoir made of a solid, porous Body, e.g. B. consists of a filter, pumice or the like. Stone and in the flow direction of the air in front of the Heating element is arranged and that the thermostat can be controlled by the moist, warm air

State of the art

A device for treating the respiratory tract with warm air is already known, the outer wall of which is provided with an opening through which the liquid is brought into the liquid reservoir will. The arrangement is made so that the liquid reservoir is not easily out of the Device is removable. This has the disadvantage that it cannot be determined with certainty whether after a Using the device the storage body is completely dry It then persists with repeated If a residual moisture remains in the storage body, there is a risk that there will be odor formation and others unwanted phenomena comes Another disadvantage is that the filling process is not without It can also be seen how much liquid the storage body has absorbed. It can happen that the storage body is only imperfectly filled. On the other hand, it can also happen that more Liquid is entered into the device than the storage body is able to absorb, so that there may be free liquid in the device. This should take into account the fact that the device is electrically heated can be avoided.

Although DE-GM 18 90 313 a device for treating the respiratory tract with warm air known, in which the mask to be placed on the patient's face is also equipped with a heating device provided space upstream and in the air flow a liquid reservoir containing a capillary system is arranged, which consists of a solid porous body. This fluid reservoir is attached so that it can be removed from the device if necessary. The di? I enabling design however, is somewhat complicated in terms of its structure and manufacture, and thus laborious. This is due in particular to the fact that the storage body has a special housing is assigned, which as a result represents an additional part of the device and thus also its Handling is complicated, since three parts have to be separated from each other in order to make the storage body out to be able to remove the device.

task

The invention specified in claim 1 is based on the object of providing a device according to claim 1 of the main patent so that the storage body is easily accessible, possibly also can be removed from the device. It should also be possible, if necessary, to use the Replace the accumulator body without difficulty.

advantages

The advantage of the design according to the invention consists in that once the storage body is removed from the device for the purpose of filling can be, whereby a particularly easy handling and also a good control option in are given with respect to the degree of filling.

Advantageous further developments of the invention are described in the subclaims. The design according to claim 2 there is the possibility, if necessary, of a new storage body in a few simple steps to use. Claim 4 takes into account the fact that the storage body in the majority of cases consists of a material that a permanent attachment of a projection according to claim 3 is not without The majority of the items described in the claims can be made of thermoplastic Plastic can be made so that there is always a certain elastic deformability is that it enables the parts to assemble and dismantle ήι even if they are undeformed State so engaged with each other that they can not be separated from each other. This is good for example for the nose mentioned in claim 16. When the device is dismantled and the inner wall is accessible from the outside, it cannot be rotated from its position in which it is after removing the storage body. on the other hand the nose acting as a barrier is not so strong that it is exposed to the action of a larger one

so torque in de: would be able to prevent rotation of the inner wall. - The Dichtelemenl according to claim 18 also has the function of keeping the parts, so in particular the heating element, storage body and intermediate piece, under a certain pre-spinning, which can be used, for example, to keep the bayonet locks under a pre-tension that prevents them from being opened unintentionally . Also be. ^J hrough these elastic seal certain tolerances in the fit of Einzeheile

6ö balanced so that they do not bite in their holders during normal handling of the device or the like. Can move.

Presentation of the invention

In the drawing, an embodiment of the invention is shown
Fig. 1 is a side view of a device for

Treating the respiratory tract with warm air, sometimes in a cut,

2 is a view in the direction of arrow II of the Fig. 1,

F i g. 3 one of the F i g. 2 corresponding view, where however, the parts are in a different position,

4 is a partial view in longitudinal section, the Section lies in a different plane passing through the longitudinal axis of the device than in FIG. 1,

5 shows a partial view in longitudinal section in a further axial plane,

6 shows a plan view in the direction of the arrows VI-VI the F i g. 5,

F i g. 7 one of the F i g. 5 corresponding representation, in which the parts, however, have a different position to one another take in,

F i g. 8 the associated top view,

F i g Q dip ppr5ppl <tivi $ rhp view of several parts of the Device in the disassembled state of the same, FIG. 10 is a side view of the device;

FIG. II shows a side view of the overall device in FIG disassembled state of the same,

Fig. 12 is a side view of the upper part of the device with associated container for filling of the storage body 28,

13 shows the side view of the upper part of the device with the storage body removed.

The embodiment shown in the drawing consists essentially of one on the face ω of the patient to be put on mask 20, an intermediate piece 21 which encloses a chamber, and a part 23 containing a heating element 22, which also serves as a handle. The heating element 22 is can be connected to a voltage source via a cable 24. The connection between cable 24 and heating element 22 takes place via a detachable plug connection with the plug contacts 25 and the plug 26.

The heating element 22 is tubular. In its interior, a thermostat 27 is arranged, -to On the outside it is made of a solid, porous body, e.g. B. surrounded by a filter stone or the like Liquid storage is used

The storage body 28 is surrounded by an inner wall 31 with an outer wall 32 and the Storage body 28 forms an annular chamber 33 or 34 in each case. In the lower region of part 23 there are holes 35 attached through which the air to be inhaled by the patient first into the annular chamber 34 and from there passes through holes 36 in the inner wall 31 into the annular chamber 33. The air flows into the latter downward. It passes through openings 37 and 38, which are located in an insert 39, in the from Heating element 22 enclosed interior 40 and from there through the intermediate piece 21 into the mask 20 and finally into the respiratory tract of the patient in front of whose face the mask 20 is located

During the passage through the annular chambers 33 and 34 and the interior 40, the air is on the The desired temperature is heated, which can be set by means of the thermostat 27. At the same time, a Insulation of the outer wall 32 is achieved, so that inadmissible heating of the same is avoided.

On its way through the part 23 as described above, the air simultaneously takes moisture from Storage body 28.

The storage body is releasably attached to an extension 45 of the intermediate piece 21 and intermediate piece 21 Extension 45 can also be formed in one piece. For reasons of production, however, it is more expedient to to manufacture the extension 45 for itself and then later, z. B. by gluing with the intermediate piece 21 to associate. The extension 45 is provided at its free end with recesses 47 extending from the edge 46, which initially run in a direction parallel to the longitudinal axis of the part 23 and then each approximately Transition in the circumferential direction area 48. The arrangement is made so that the Free edge 46 facing section 49 of the recess 47 a complete opening of the wall of the extension 45, whereas the adjoining section 47 and that in the circumferential direction extending region 48 are formed merely by a recess in the inner lateral surface 50.

The hollow cylindrical storage body 28 is on his

t \ pr MsicL · * » Often TilCTpIiphrtpn FnHp with pinpm Rinir 51 711m

Example of plastic or other suitable material provided with the memory body 28 z. B. is connected by gluing. This ring 51 has two radial projections 52 on its outer circumference, which cooperate with the recesses 47, 48 in extension 45 in the manner of a bayonet lock. So That is, that for attachment of the storage body 28 to the intermediate piece 21 or its extension of the Speid- 45 ^<s rkörper first so 21 in the direction of the intermediate piece thus moved axially, in that the projections slide into the recesses 47 52 whereupon, when the projections 52 are at the level of the areas 48, by a rotation of the storage body 28 and thus of the ring and the projections 52 carried by it, the latter come to lie in the areas 48 of the recesses 47. The arrangement can be made in the usual way so that the area 48 or at least one (27) of the boundary surfaces of the same runs slightly obliquely, so that the two projections 52 experience a certain fixation, which excludes unintentional loosening of the connection. This fixation is supported by a sealing ring 53 made of rubber-elastic material, preferably silicone rubber, which presses against the ring 51 of the storage body 38 and the heating element 22 via an intermediate ring 54 and holds these parts under a certain preload. The extension 45 has an annular projection 30, which rests against the central region of the sealing ring 53.

The outer wall 32 has two opposite ends on the inside at its upper end region Recesses 55 are provided, each of which consists of two areas 56 and 57. The upper area 56 is on one side of two inclined surfaces 58 limited such that it is approximately one in side view has a triangular shape, at the top of this triangle, which extends in the direction of the lower region 57 becomes narrower, a passage 59 is provided which both areas 56 and 57 connects to one another The lower area 57, which is considered in the circumferential direction running groove is formed has a greater radial depth than the upper region 56 (Figs. 6 and 8).

The parts cooperating with these two recesses 55 of the outer wall 32 are two on Radial lugs 60 located on extension 45 of intermediate piece 21 and two at the upper end of inner wall 31 located outer projections 61. Letzlere are each carried by a web 62, which over the upper

Limitation 23 of the inner wall 61 protrudes upwards.

The upper region 56 of each recess 55 essentially serves to introduce the associated lug 60 or the associated projection 61 in the groove-shaped lower region 57 is inserted, with dteiden projections 61 first reaching the upper region 56 and from there via the passage 59 into the lower groove-shaped region 57. This insertion does not cause any difficulties, since the projections 61 are inevitably guided in the direction of the passage 59 by the inclined surfaces 58. The inner wall 31 is then rotated into a position in which the projections 61 are as shown in FIG. Take the position shown in the drawing. In the latter, the projections 61 and thus also the inner wall 31 are ^{secured by a small projection 64 attached to the swsndun 11 of} the area 57. This projection, which is expediently made of thermoplastic material, so has a certain elastic resilience, is sufficient on the one hand to avoid unwanted rotation of the inner wall 31. On the other hand, this small projection is so flexibly connected to the outer wall 32. The cross-sectional shape of the recess 71 is such that the cross-section is practically completely filled by the latter when the plug 26 is inserted.

Typically, the parts, particularly inner wall 31 and outer wall 32, shown in FIGS. 1, 2.4 and 10 shown position to each other. To bring the liquid into the storage body 28 is take this out of part 23. For this purpose, the intermediate piece 21 with extension 45 is around the dimension 66 (FIGS. 1 and 3) in the direction of the arrow 73 relative to the outer wall 32 rotated, for reasons of manufacture or to achieve a special appearance can consist of two parts 32a and 326. Well, at the end of this one Rotary movement, take the parts in the F i g. 5-8 position shown to each other. It can be assumed that the inner wall 31 due to the over the webs 62 and the openings 49 given positive connection at this rotary movement This also applies to the plug contacts 25 at the lower end of the part 13, since the holder 70 has taken over the insert 39 on the rotary movement of the inner wall 31 for these plug contacts.

The above-described rotational movement of the intermediate piece 21 and the inner wall 31 including the associated parts in the direction of arrow 73 once has the consequence that with respect to the connection between Extension 45 of the intermediate piece 21 and the part 23 or its outer wall 32 which are shown in FIGS The positions shown for the individual parts are given. That is, the intermediate piece 21 with extension 45 after can be pulled out of the part 23 or its outer wall 32 at the top. That’s what happens two lugs 60 the respective passage 59 of the two openings 55. Furthermore, the extension 45 can simply be lifted off the two webs 62 of the inner wall 31. The inner wall remains in its in the Fig.5-8 shown end position, which is also the in F i g. 3 of the drawing corresponds to the pivoted position of the two plug contacts 25. These plug contacts 25 take an inclined position with respect to the recess 71 into which the plug 26 can be inserted so that it is not possible with the device open or the storage body 28 removed is, a conductive connection between the device and a voltage source via plug contacts 25 and Manufacture connector 26. On the other hand, this means that a rotation of the two parts 31 and 32 in the sense of a Opening the device is not possible as long as the plug 26 is located within the recess 71. It is therefore necessary to release the connection by removing the plug 26 from the recess 71,

ίο before the device can be opened.

The rotary movement can be achieved by stops at suitable points, preferably in the area 57 of the Recess 55 be limited. It is also possible that an extension 76 of the holder 70 against a associated stop 77 abuts or that the plug contacts 25 against the wall of the recess 71 and thus limit the rotary movement.

11 of the drawing shows the storage body 28 hanging on the extension 45 of the intermediate piece 21 after the latter has been pulled out of the part 23 upwards or the part 23 has been pulled off downwards. There is now the possibility, with the intermediate piece 21 and optionally mask 20, which is releasably attached to the intermediate piece 21, in a special way that when an external force acts in the circumferential direction on this projection, it is elastically deformable to the extent that the associated projection of the Inner wall 31 can be moved over the projection 53.
If the two appendages the in F i g. 5 and 6 of the drawing, the extension 45 of the intermediate piece 21 can also be inserted from above into the upper region of the outer wall 32. F i g. 5 of the drawing shows that the openings 49 and the adjoining recesses 47 on the one hand and the noses 60 on the other hand are arranged in relation to one another in such a way that when the noses 60 are guided through the associated passage 59 into the lower region 57 of the recess 55, the Access opening 49 at the lower free end of the extension 45 from above over the respectively associated web 62 of the inner wall 31, so that there is a positive connection in the circumferential direction between these two webs 62 on the one hand and the two openings 49 on the other The state is shown in FIG. 7, and here, as in FIGS. 5 and 6 and 8, the storage body 28 is not shown for reasons of clarity. In order to secure the extension 45 and thus the intermediate piece 21 and the parts assigned to it in the position in which the extension 45 is located within the upper region of the outer wall 32, a rotary movement about the longitudinal axis of the part 23 is transmitted to the extension 45. This rotary movement is indicated by arrow 65 in FIG. 7 indicated. The extent of the rotary movement is denoted by 66 in FIG. 7 and 8 a layer 60a shown in dash-dotted lines. At the same time, the inner wall 31 has also been rotated by the appropriate amount, since due to the already mentioned positive connection between the webs 62 on the one hand and the extension 45 at its openings 49 on the other hand, these webs and thus the inner wall 31 are entrained Manner, the projection 64 is elastically deformed to such an extent that it does not hinder the rotational movement of the associated web 62. In FIG. 8 of the

For the sake of clarity, the second position of the projection 61 is not shown in the drawing.

The inner wall 31 is connected to the already mentioned insert 39 in such a way that the former Has openings 67, engage in the strip-shaped projections 6S, which are located on the outer periphery of the Insert 31 are attached. Here, too, it can be assumed that both parts, that is to say the inner wall 31 as well as Insert 39 consist of a preferably thermoplastic plastic that has a certain elastic ι ο Has deformability, so that it is possible, the inner wall 31 during assembly with its lower end to lead over the insert 39 until the strips 68 engage in the openings 67. The heating element 22 is also carried by insert 39 with the interposition of a sealing ring 68, the fastening of the heating element 22 is carried out by clips 69, one end of which engages in the openings 37.

Due to the above-described connection between inner wall 31 and insert 39, the latter take place including a holder 70 for the plug contacts 25 part of this rotary movement. The one in the plug Insertable parts of these plug contacts protrude into a recess 71 on the bottom 72. The latter is with Introduce container 76, which has an annular space 77, the dimensions of which to those of the hollow cylindrical Storage body 28 are adapted. The annular space 77 is of this type in its lower region 78 narrowed so that the radial dimension corresponds approximately to the wall thickness of the storage body 28 there. on In this way it is achieved that the liquid located in this lower region 78, when introduced of the storage body 28 is partially displaced upwards, particularly intensively into the storage body is pushed into it, so to speak.

13 shows that it is possible to detach the storage body with the ring 51 located on it from the extension 45 by a relative rotational movement of the Spciehefköfpers 2S in the direction of the arrow 79. In this way, it is possible, if necessary, to use a new storage body 28, which is inserted into the recesses 47 or 48 of the extension 45 in the manner ^{already described in FIG. 1 with its projections 52.}

The assembly of the device after filling the storage body 28 takes place in the im Connection with the Fig.5-8 described manner, then to establish the connection between the part 21 or 45 on the other hand and 23 or 32 on the other hand, the relative rotation in the direction of the Arrow 65 (Fig. 7) must be carried out in order to engage the parts forming the bayonet lock bring.

For this purpose 3 sheets of drawings

eo

55

Claims (23)

Patent claims: 1. Device for treating the respiratory tract with warm air, in which the on the face of the A mask to be put on the patient with a heating device controlled by a thermostat provided space upstream and a capillary system containing a liquid reservoir is arranged in the air flow, which as a hollow cylinder is formed, surrounding the heating element of a solid, porous body, for. B. from a filter, pumice sod. Like. -stein and is arranged in the flow direction of the air in front of the heating element, and at. which the thermostat can be controlled by the warm, humid air, according to patent 19 33 350, thereby characterized in that the storage body (28) is attached to an intermediate piece (21) carrying the mask is attached. which is separable from the part (23) having the heating element (22) 2. Apparatus according to claim 1, characterized in that the storage body (28) by means of a Bayonet catch (47, 48; 52) detachably attached to part (21) 3. Apparatus according to claim 1 or 2, characterized in that the intermediate piece (21) or a Extension (45) of the same with one or more recesses (47, 48) is provided with corresponding projections (52) on the storage body (28) cooperate. 4. Vorrichiung according to claim 3, characterized in that that the vonugswe'je made of sand-lime brick (28) with a ring (51) made of plastic is the one with the recesses (47, 48) of the intermediate piece (21) or the extension (45) carries cooperating projections (52) 5. Apparatus according to claim 3, characterized in that that the intermediate piece (21) or extension (45) on the one hand and the outer wall (32) of the Heating element (22) having part (23) on the other hand with one another via a bayonet lock (57, 60) which are connectable. 6. Apparatus according to claim 5, characterized that the outer wall (32) at least at its end region facing the intermediate piece (21) a recess (57) which is preferably arranged on the inside and carries one or more Noses (60) on the intermediate piece (21) or extension (45) are assigned. 7. Apparatus according to claim 6, characterized in that the recesses than in the circumferential direction extending groove sections (57) are formed which have additional recesses (56) in the Outer wall (32) are accessible from one end of the same. 8. Apparatus according to claim 7, characterized in that the groove sections (57) in radial Direction have a greater depth than the additional recesses (56). 9. Apparatus according to claim 8, characterized in that that the additional recesses (56) have an approximately triangular shape, with on A passage (59) to the groove section (57) is provided at a tip of the triangle. 10. Apparatus according to claim 9, characterized in that this passage (59) in the circumferential direction is slightly longer than the corresponding dimension of the cooperating Nose (60) of the other part (21,45). 11. The device according to claim 1, characterized in that the outer wall (32) and heating element (33) having part (23) with a spaced apart from the outer wall (32) tubular inner wall (31) is provided relative to the outer wall (32) around the The longitudinal axis of the part (23) is rotatably arranged IZ device according to claim 11, characterized in that the inner wall (31) on its the side facing the intermediate piece (21) with outwardly protruding, possibly of webs (62) carried projections (61) is provided which engage in the groove sections (57). 13. Apparatus according to claim 12, characterized characterized in that the radial extent of these projections (61) is greater than the depth of the Connection between the groove section (57) and the front end producing additional recess (56). 14. Device according to one of claims 3 to 13, characterized in that the intermediate piece (21) or extension (45) are provided with edge recesses (49) which the projections (61) or the Straps (62) overlap. 15. Vomchtj23g according to claim 14, characterized in that the edge recesses (49) merge into those recesses (47, 48) or are part of the same, which cooperate with the projections (52) of the storage body's (28). 16. Device according to one of the preceding claims, characterized in that the projections (61) of the inner wall (31) leading groove sections (57) with a protruding nose or the like. (64) are provided, which are elastically deformable under the action of a force acting in the direction of rotation is 17. Device according to one of claims 11 to dir 17, characterized in that the inner wall (31) is provided with an insert (39) which carries the heating element (32) 18. Device according to one of the preceding claims, characterized in that the hollow cylindrical heating element (22) on its side facing the intermediate piece (21) an annular Sealing element (53) made of rubber-elastic material, preferably silicone rubber, is assigned, which is clamped between the heating element (22) and the intermediate piece (21) or extension (45) of the same is. 19. The device according to claim 18, characterized in that the Zv / ischenstück (21) or Extension (45) has an annular projection on the side facing the heating element (22) carries, which rests on the sealing ring (53). 20. Apparatus according to claim 8 or 19, characterized in that the sealing ring (53) - possibly with the interposition of a spacer ring (54) - also on the storage body (28) is applied. 21. Device according to one of the preceding claims, in which on the face to be put on mask facing away from the end a plug connection for the supply of the electrical Stromes provided is characterized in that the outer wall (32) at this end with a the shape of the power cord plug (26) adapted socket (71) is provided, which the plug contacts (25) are assigned, and the socket (7t) can be rotated relative to the plug contacts (23) 22. Device according to one of the preceding claims, characterized in that its a loose container (76) is assigned to the one of the hollow cylindrical storage body (28) adapted having annular interior (77) 23. The device according to claim 22, characterized in that the lower part (78) of the Annular space (77) has a smaller radial extent than the upper region of the annular space (77).