DE102016120215B3 - Apparatus and method for aspirating liquid - Google Patents

Abstract

The invention relates to a device (1) for aspirating liquid, in particular saliva, cooling liquid or rinsing liquid, from the mouth of a person, comprising a suction tube (2), which has: a first suction tube length section (3) whose proximal longitudinal end (4) with an outlet opening (5) in communication or an outlet opening (5), and a second Saugrohrlängenabschnitt (9), wherein the first Saugrohrlängenabschnitt (3) and the second Saugrohrlängenabschnitt (9) by means of at least one further Saugrohrlängenabschnittes (10, 11, 12 ) are fluidly connected to each other and in a longitudinal direction (L) of the device (1) are spaced from each other, wherein the first Saugrohrlängenabschnitt (3) and in particular the second Saugrohrlängenabschnitt (9) transversely, in particular perpendicular, to the longitudinal direction (L), wherein the second intake pipe length section (9) has at least one shell-side intake opening (13), which in Ri direction to the first Saugrohrlängenabschnitt (3) and / or toward an imaginary extension of the first Saugrohrlängenabschnittes (3). Moreover, the invention relates to a method for aspirating liquid, in particular of saliva, cooling liquid or rinsing liquid, from the mouth of a person, comprising the method steps: - Providing a device according to the invention (1), - Introducing the device (1) in the mouth of a Person alongside the tongue (39), so that a rounded wall portion of the second Saugrohrlängenabschnittes (9) on the lingual surface (40) of the alveolar process (41) is applied.

Description

Field of engineering

The invention relates to a device for aspirating liquid, in particular saliva, cooling liquid or rinsing liquid, from the mouth of a person, wherein the device has a suction tube.

Furthermore, the invention relates to a method for aspirating liquid, in particular saliva, cooling liquid or rinsing liquid, from the mouth of a person.

State of the art

In the prior art is a device for aspirating liquids US 2015/0093716 A1 known. Depending on the design, the known device also has means for pressing the tongue. For aspirating liquid, in particular saliva, serves a plurality of openings distributed on the device, which are located in the mouth at correspondingly different positions. The known device is to be operated by a patient in order to obtain a desired mouth opening during a treatment, to suck saliva and to push the tongue to the side. In the known device, however, is considered particularly disadvantageous that with respect to the distributed suction during use there is a risk of covering and constipation by adjacent soft tissue areas, so that the suction can be blocked, with the result that it leads to an undesirable accumulation of Liquid in the mouth can come and a, for example, desired dental treatment is hampered. In addition, the possible positioning accuracy with the known device is perceived as insufficient.

In the prior art is off DE 30 37 749 A1 a saliva ejector is known, which has a bent tubular body with a suction opening embedded therein. DE 695 14 452 T2 discloses a disposable saliva suction device comprising a rod-shaped member having a straight retaining piece, an arcuate intermediate piece and a tubular suction piece, the suction piece being provided at its free end with a suction opening and merging into a frame-like structure. Out WO 2013/156701 A1 is a multiply bent tubular saliva ejector with a plurality of suction openings known. WO 2015/028422 A1 discloses a multiple curved tubular saliva ejector with multiple suction ports.

Summary of the invention

In contrast, the invention has the object of developing an aforementioned device and an aforementioned method advantageous. In particular, it is desirable that, with regard to the suction opening or suction openings formed there, the risk of covering and clogging by soft tissue in the interior of the mouth is met. It is also envisaged that the handling of the device can be done not only by a medical assistant, but alternatively by a person in whose mouth the device is applied (in particular, a dental patient). The aim is also in particular that the disadvantages of a so-called relative draining can be avoided.

To solve the problem, the invention proposes a device whose suction tube has:
a first suction tube length portion having a proximal longitudinal end communicating with or having an exit port and a second suction tube length portion, wherein the first suction tube length portion and the second suction tube length portion are fluidly connected to each other by at least one other suction tube length portion and spaced from each other in a longitudinal direction of the device the first Saugrohrlängenabschnitt and in particular the second Saugrohrlängenabschnitt transversely, in particular perpendicularly, extend to the longitudinal direction, wherein the second Saugrohrlängenabschnitt has at least one shell-side suction opening facing towards the first Saugrohrlängenabschnitt and / or towards an imaginary extension of the first Saugrohrlängenabschnittes.

The device can preferably be used so that the second Saugrohrlängenabschnitt is inserted into the oral cavity of a person, while the first Saugrohrlängenabschnitt and possibly adjoining connection section outside the chin, so outside the mouth remains. In this case, the first Saugrohrlängenabschnitt (and / or if available, a connection portion) a proximal end portion and the second Saugrohrlängenabschnitt a distal end portion of the device, which can also serve as a handle for the handling of the device. With respect to a direction pointing inward into the oral cavity, the suction opening at the second intake tube length section is wholly or partially "backwards", ie pointing in the direction of the comparatively proximally situated first intake tube length section. It is preferred that in the length region of the second Saugrohrlängenabschnittes in which extends the suction port, this suction port is the only shell-side opening or that, for example two slit-like intake openings pointing in the illustrated direction extend alongside one another along the longitudinal direction of the first intake pipe length section. Thus, the device can dispense with suction, which are directed in lateral directions, ie in directions transverse to an imaginary plane extending centrally through the first Saugrohrabschnitt and the second Saugrohrabschnitt. Thus, the wall portions of the second Saugrohrlängenabschnittes pointing in such lateral directions can serve for temporal support in the oral cavity, without it can lead to a covering or even a suction blockage obstructing the along the longitudinal direction of the device proximally facing intake. Preferably, a lateral support of the second Saugrohrlängenabschnittes on a convex portion of the attached gingiva (attached gingiva) covered (tongue side) alveolar ridge carried. If a person in whose oral cavity the device is inserted is in an upright position, it is preferred that the first and second suction tube length sections extend vertically or substantially vertically and that the longitudinal direction of the device extends horizontally or substantially horizontally. Advantageously, this orientation of the device can be favored or even predetermined by the configuration of the device.

A device according to the invention offers several advantages. In the foreground is that, in the case of the shell-side intake opening formed on the second intake pipe length section, according to their position or orientation, the danger is met that the intake opening is covered and clogged by soft tissue in the oral cavity during use of the device. As a result, a high suction performance is achieved even for various viscous liquids. The handling can be done not only by an assistant of a dentist, but alternatively by the patient himself. An assistant can either be dispensable or concentrate on other tasks. The disadvantages of a so-called relative drainage can be avoided. The device according to the invention allows a material-saving design as disposable disposable articles and thus at low cost compliance with high hygiene requirements. The use of the device by the patient may eliminate the need for an assistant to hold the tongue and simultaneously aspirate fluids when working on the mandibular posterior teeth. On the other hand, the disadvantages of conventional relative draining can be circumvented by eliminating frequent changes of cotton rolls and avoiding inadequate soft tissue maintenance. In this case, the device according to the invention makes it possible to effectively prevent the tongue from a treatment space of the posterior teeth and at the same time to aspirate various viscous liquids with high suction power. The device according to the invention is thus suitable for patient-assisted keeping clear of a dental working field and simultaneous aspiration of fluids, in particular concomitant with a dental treatment of lower jaw teeth.

The device according to the invention for aspirating liquid serves for introduction into the mouth of a patient and for connection to a vacuum generating device, in particular to a saliva ejector tube of a vacuum generating device. In this respect, the device according to the invention is a suction attachment for use with a vacuum generating device. The device can serve for suction of saliva and / or introduced cooling and / or rinsing liquid and / or other liquid media from the oral cavity.

Terms such as one, one, one, etc. are not to be understood as numbers unless stated otherwise. The feature extending transversely to the longitudinal direction does not necessarily mean an extent perpendicular to the longitudinal direction, but also includes this as a possibility.

There are numerous possibilities for the preferred development:
The suction tube is preferably formed in one piece, alternatively, a multi-part design is possible. The inner diameter is preferably in a value range of 5 to 7 mm and is in particular 6 mm. The wall thickness of the suction tube can z. B. are in a range of 0.8 to 1.2 mm and is in particular 1 mm.

It is preferred that the at least one suction opening is slit-shaped, wherein the slot longitudinal direction extends along the longitudinal direction of the second Saugrohrlängenabschnittes, wherein the length of the suction opening is in particular in a value range of 12 to 18 mm and in particular 15 mm, and wherein a ratio of light width, in particular of an inner diameter, the second Saugrohrlängenabschnittes to the slot width is in particular in a range of values from 1.0 to 1.4, and in particular is 1.2.

The slot width can z. B. in a range of 4-6 mm and preferably be 5 mm.

There is the possibility that the device has a, in particular lamellar, tongue spacers, which is connected to the suction tube and the geometrically one centrally through the Tongue spacer spans leading spacer plane, which extends along the longitudinal direction of the device and along to the longitudinal direction of the second Saugrohrlängenabschnittes, wherein it is provided in particular that the spacer plane in an imaginary geometric extension, in particular centrally through which extends at least one suction port.

However, a central extension or alignment of the suction opening is not necessary. Sufficient, for example, when the at least one suction port formed on the first Saugrohrlängenabschnitt intake opening when viewing the second Saugrohrlängenabschnittes in parallel to the longitudinal direction of the device, from proximal to distal leading direction in a direction perpendicular to the longitudinal direction of the device viewing plane completely or partially, in particular only peripheral section, is visible.

Alternatively, it would be possible that at the second Saugrohrlängenabschnitt not only one, but two side by side along the longitudinal direction of the second Saugrohrlängenabschnitts extending suction openings are formed, which point towards the first Saugrohrlängenabschnitt and / or toward an imaginary extension of the first Saugrohrlängenabschnittes. In this respect, too, it may suffice that one or both of these suction openings is or are completely or partially visible in the previously described viewing plane and viewing direction. There is z. B. the possibility that extends from these two suction each one suction on one side of the tongue spacer.

The tongue spacer may have a blade, the z. B. spatula-shaped. Alternatively or in combination, the tongue spacer may have one or more webs, in the case of a preferably latticed arrangement of these webs.

A flat configuration of the tongue spacer offers several advantages. The tongue can be kept at a distance from the lingual side of the lower molars, so that a work space desired for dental treatment, which adjoins the lower molars lingually, can be kept free. There is no need for repeated replacement of a spacer (unlike conventional cotton spacers).

There is the possibility that the tongue spacer has a, in particular straight, edge portion which extends completely or longitudinally in sections parallel to an opening cross section of the suction opening and in particular in or in front of the opening cross section of the at least one suction opening.

In a preferred embodiment, it is provided that the suction tube has a third Saugrohrlängenabschnitt which connects at its proximal longitudinal end to the distal longitudinal end of the first Saugrohrlängenabschnittes and in relation to a geometric extension of the first Saugrohrlängenabschnittes in a first Winkelzählrichtung by a first angle in the range Angled 82-90 degrees, in particular of 86 degrees, that the suction tube has a fourth Saugrohrlängenabschnitt, which adjoins the distal longitudinal end of the third Saugrohrlängenabschnittes at its proximal longitudinal end and in relation to a geometric extension of the third Saugrohrlängenabschnittes in the first Winkelzählrichtung a second angle in the range of 40-52 degrees, in particular of 46 degrees, angled, that the suction tube has a fifth Saugrohrlängenabschnitt which at its proximal longitudinal end to the distal longitudinal end of the four The suction tube length section adjoins and is angled in relation to a geometric extension of the fourth Saugrohrlängenabschnittes in a direction opposite to the first Winkelzählrichtung second direction of rotation by a third angle in the range of 40-52 degrees, in particular of 46 degrees, and that the second Saugrohrlängenabschnitt at its proximal longitudinal end adjoins the distal longitudinal end of the fifth Saugrohrlängenabschnittes and is angled with respect to a geometric extension of the fifth Saugrohrlängenabschnittes in the second Winkelzählrichtung by a fourth angle in the range of 79.7-87.5 degrees, preferably of 83.5 degrees, and closed at its distal longitudinal end frontally. Accordingly, the device may comprise a multiple-kinked draft tube with one or more slats attached alongside. Such a design favors a rigid design. The device can be inserted alongside the tongue between the tongue body and the tooth-bearing alveolar process and, as will be explained below, can be held in position via a notch in a lamella part. This position can be corrected in particular by handling a patient within slight limits. The device is suitable for keeping the oral cavity and the teeth dry, whereby this task is subsumed in German-speaking countries under the terms "relative" and "absolute" dryness.

It is possible that the device has a connection section for connection to a saliva ejector tube of a device for generating negative pressure, wherein the connection section at its proximal longitudinal end has an outlet opening and is connected directly or indirectly at its distal longitudinal end, in particular rectilinearly, with the first Saugrohrlängenabschnitt. The connection section is then a further suction tube length section, so that one could also speak, for example, of a sixth suction blank length section. There is the possibility that the connecting section widens conically starting from the outlet opening, in order to simplify a firm attachment of a hose or the like. Alternatively, the connection portion could have a constant outer diameter.

It is considered appropriate that at the fifth Saugrohrlängenabschnitt a second, slit-like extending in the longitudinal direction of the suction opening is formed, which merges into the formed on the second Saugrohrlängenabschnitt intake and which has a length, in particular in a range of 4.5 to mm and in particular is 4.75 mm.

An advantageous development provides that between the suction portion and the first Saugrohrlängenabschnitt a holding projection is formed, which protrudes along the entire circumference or along a peripheral portion radially outwardly beyond the connection portion and the first Saugrohrlängenabschnitt, wherein it is provided in particular that the retaining projection of a The outlet opening facing away from the end face, are introduced into the recesses. The holding section can serve for device-side fixing of a holding means, for example a wire clamp, wherein a wire section or a plurality of wire sections of the wire clamp can lie in the depressions for fixing the position. Another end of the holding means may be fixed to a saliva ejector tube. In this way, a saliva ejector tube, alternatively or in combination with its possible attachment to the suction section, attached to the device and secured against accidental slipping. A wire clip is particularly contemplated when the suction section has a constant outside diameter. Alternatively or in combination, the holding section may be suitable for this purpose and, in particular, adapted by the shaping to attach a weight to it, in particular when achieving a positive and / or non-positive connection. The weight, with the device in the mouth, can produce a desired limited downward force acting as a pulling force on the first suction tube length portion and stabilizing a desired angular orientation of the device, particularly in conjunction with lower anterior tooth engagement with an incisal notch. If the device unintentionally separates (or is deliberately separated) from a saliva ejector tube which likewise generates a traction effect, the corresponding pulling force is eliminated. By contrast, a weight can independently maintain a certain desired tensile force. It is preferred that the weight has a, in particular in its length, adjustable support means whose free longitudinal end can serve for support on a lower part of the face, preferably on the chin of a patient. Thereby, an undesirable tipping, in particular of the second Saugrohrlängenabschnitts away from the most favorable suction position in the mouth can be prevented. A weight which preferably has one or more of these features may be part of the device according to the invention.

It is preferable that the connection portion, the first suction tube length portion, the second suction tube length portion, the third suction tube length portion, the fourth suction tube length portion, and the fifth suction tube length portion each be straight in their respective length portion. An advantageous embodiment is seen in that extend the third Saugrohrlängenabschnitt and the fifth Saugrohrlängenabschnitt parallel to the longitudinal direction of the device, wherein it is provided in particular that a lateral distance between a centrally extending through the third Saugrohrlängenabschnitt line and a centrally through the fifth Saugrohrlängenabschnitt extending straight line in the range of 15-20 mm and in particular 17 mm. The mentioned straight lines are imaginary geometrical lines of lengths extending beyond the suction tube length sections. Preferred is an overall planar design of the device. For this purpose, it is preferred that a straight line running through the first intake pipe length section, a straight line running through the second intake pipe length section, a straight line running centrally through the third intake pipe length section, a straight line running through the fourth intake pipe length section and a straight line extending centrally through the fifth intake pipe length section run a common geometric plane. As appropriate, it is considered that an intersection of a centrally through the first Saugrohrlängenabschnitt extending straight line with a centrally extending through the third Saugrohrlängenabschnitt line at a distance from an intersection of a centrally extending through the third Saugrohrlängenabschnitt line with a centrally extending through the fourth Saugrohrlängenabschnitt line, which is in the range of 28 to 32 mm and the particular 30th mm is that an intersection of a straight running through the third Saugrohrlängenabschnitt line with a centrally extending through the fourth Saugrohrlängenabschnitt straight line at a distance from an intersection of a centrally extending through the fourth Saugrohrlängenabschnitt straight with a centrally extending through the fifth Saugrohrlängenabschnitt line, the Range of 22 to 26 mm and in particular is 24 mm, that an intersection of a center passing through the fourth Saugrohrlängenabschnitt line with a centrally through the fifth Saugro Straight section extending straight at a distance from an intersection of a centrally extending through the fifth Saugrohrlängenabschnitt line with a centrally extending through the second Saugrohrlängenabschnitt line, which is in the range of 23 to 27 mm and in particular 25 mm.

There is the possibility that an intersection of a straight line extending centrally through the first suction tube length section with a straight line extending centrally through the third suction tube length section is at a distance from the proximal longitudinal end of the first suction tube length section, which is in the range of 31 to 35 mm and in particular 33 mm. It is preferred that a distance between a, in particular rounded, distal longitudinal end of the device and an intersection of a straight line running through the second Saugrohrlängenabschnitt and a center running through the fifth Saugrohrlängenabschnitt line is in the range of 25-29 mm and in particular 27.2 mm is. To achieve a high stability, it is preferred that the tongue spacer is formed or attached to the second Saugrohrlängenabschnitt and / or on the fourth Saugrohrlängenabschnitt and / or on the fifth Saugrohrlängenabschnitt.

An expedient development of the device provides that the fifth Saugrohrlängenabschnitt has at least one shell-side suction opening, which is directed toward a linear geometric extension of the third Saugrohrlängenabschnittes, which is in particular slit-like, which connects in particular to the suction port of the second Saugrohrlängenabschnittes and the extends, in particular starting from the suction opening of the second Saugrohrlängenabschnittes along a longitudinal section of the fifth Saugrohrlängenabschnittes. Preferably, an aspect ratio of the fifth suction pipe length portion to the length of the suction port of the fifth suction pipe length portion may be in the range of 3 to 4.

According to a further aspect, it is preferred that the device has at least one incisal lamella. Suitably, the incisal lamella has at least one, in particular two, incisal notches for placement on an incisal edge, the incisal notch or incisal notches being open in the direction away from the third suction tube length portion. It is preferred that the incisal lamella is formed in each case on the first, third and fourth Saugrohrlängenabschnitt and extends in the bounded by these Saugrohrlängenabschnitten bay. This advantageously results in a high rigidity of the device in the length of the device associated with these areas. Alternatively or in combination, it is preferred that the tongue spacer is formed in each case on the second, fourth and fifth Saugrohrlängenabschnitt and extends in the bounded by these Saugrohrlängenabschnitten bay. As a result, a desired high rigidity also results in the longitudinal section of the device assigned to these areas. Overall, it is thus possible over the entire length of the device, d. H. from the incisal edge (or an incisal edge) to the suction port or ports on the device according to the invention, to realize a rigid path that allows accurate positioning of the suction port (s).

A further development provides that the incisal heel or that each incisal heel has two mutually opposite flanks integrally enclosing an acute angle, which run together in a notch bottom in a rounding, wherein a radius of the rounding in particular in the value range of 1.8 to 2.2 mm in particular, is 2.0 mm, wherein a notch depth, which is measured along an angle bisector of the two flanks from the rounding to a mouth line, in particular in the value range of 4 to 6 mm, and in particular 5 mm, and wherein a flank angle between a respective flank and the bisector is in particular in a value range of 14 to 18 degrees and in particular 16 degrees. It is also preferable that the device has an incisal heel, wherein a distance from the apex of the notch bottom of this incisal notch to a groove formed at the transition from the fifth suction tube length portion to the second suction tube length portion is in a range of 50 to 56 mm, and more preferably 53 mm , and / or in that the device has an incisal notch, wherein a distance from the apex of the notch base of this incisal notch to a groove formed at the transition from the fifth suction tube length section to the second suction tube length section is in a value range of 42 to 48 mm and in particular 45 mm , A device having one or more of the above dimensions is preferably intended for use by adults. All mentioned and / or other dimensions, spacings and angle data shown in the figures, for example, can be varied differently from the numerical values mentioned above, preferably in a value range of plus / minus 10 percent. By adhering to the value range and numerical sizes, however, a position and orientation of the device according to the invention in the mouth of most adults favors the most effective counteracts a blockage of the suction port or the outlet opening. For use for children on the other hand a structural reduction is preferred. For this purpose exists z. For example, the possibility that all the aforesaid length dimensions, unless they relate to the connection section and the retaining ring, are reduced by a factor which is in the range of 0.75 to 0.80, and preferably 0.78, compared to said values is. Such a reduction may be expedient in particular for the distances referred to as length dimensions.

In a preferred embodiment, it is provided that the device consists of PLA polymer or has PLA polymer. The abbreviation PLA stands for polylactic acid, in German polylactides, which are also known in the field as polylactic acids. Polylactic acids are synthetic polymers that belong to the polyesters. On the one hand, this material provides a desired sufficient strength to achieve the desired rigidity of the device. On the other hand, the strength of this material is not too large, so that the risk of injury and tooth damage, especially when meshing in the so-called. Incisal notch, is met. It is considered appropriate that the device is made in one piece, in particular as an injection-molded part or as part created by means of 3D printing (three-dimensional printing).

Furthermore, there is the possibility that the device has a weight as a separate element. This can be adapted geometrically thereto, in particular in the region of the retaining ring and adjacent sections of the suction pipe to be fixed to the device releasably and / or non-positively releasably.

According to the preceding embodiments, it is preferred that the device has a multiply kinked, rigid suction tube and two in alignment, guided along the suction tube, lamellar projections and preferably a retaining ring. The suction tube may, for example, have a round or an oval cross-section. It may begin with an outlet for liquids, which may be located, for example. At a tapered pipe end of a so-called. Connection section. Starting from there, the suction pipe can preferably lead via four bends into a suction connection, which was previously referred to as the fifth suction pipe length section. During use of the device, the first and second draft tube length portions preferably extend vertically or substantially vertically such that the third and fifth draft tube length portions extend correspondingly horizontally or substantially horizontally. In the vertical suction nozzle, the suction pipe opens in a rear suction opening, which can also be referred to as a vertical slot opening. This can find its continuation in a suction opening, which is formed on the shell side in the fifth Saugrohrlängenabschnitt. A so-called incisal lamella may have one or two notched incisal notches on its lower edge. An incisal heel may be adjacent to a so-called lip bay on the proximal side. On the distal side, a so-called lingual cove can adjoin an incisal edge. With regard to the tongue spacer, which may also be referred to as tongue lamella, it is preferred that its upper edge in the position of use extends rising from the fourth suction tube length section in the direction of the second suction tube length section. A trailing edge (that is, a distal-facing edge) of the tongue spacer may leave some space for a longer distance to the vertical slot-shaped suction port formed in the second suction tube length portion. The upper edge of the tongue spacer can lead in a small curve down into the rear arch of the fifth Saugrohrlängenabschnittes and limit the tongue spacers obliquely backwards in this way.

In the apparatus according to the invention, the suction opening in the fifth Saugrohrlängenabschnitt and in particular in the fourth Saugrohrlängenabschnitt is designed and positioned so that it is blocked at any time by tough saliva or sucked or fitting soft parts or so that the risk of blocking is at least largely excluded.

The position of the device towards the rear against any sliding of the tongue forward over an incisal edge of the device, which can be placed on the cutting edges of the mandibular anterior teeth held. The rounding of the fifth Saugrohrlängenabschnittes can rest against the lingual surface of the alveolar process and thus keeps the tongue spacers and thus the tongue at a distance from the molars. This is important for effectively draining this treatment region. The overlay of the device on the incisal notch forms a fulcrum for its pivoting within narrow limits, both in vertical-sagittal, as well as in the horizontal plane. Thus, the most favorable position for the extraction and the holding of the tongue can be easily found and kept. The patient can reposition the device by applying hands in the event of painful touch. Drops the device due to the elasticity of the saliva ejector tube (in particular due to unfavorable position) from the incisal edge, this position by placing a semi-annular weight, in particular on the first Saugrohrlängenabschnitt above the retaining ring can be clipped, are held. The weight may include a spacer which rests on the chin socket. Thus, it can be prevented that the part lying on the floor of the mouth lifts off with the fifth suction tube length section lying there.

In the favored by the inventive design of the device or even predetermined position of the fifth Saugrohrlängenabschnittes in the oral cavity of a patient, the suction port is located at the fifth Saugrohrlängenabschnitt in the most favorable position for suction. This is of great importance for the extraction of liquids.

• – Bereitstellen einer Vorrichtung gemäß einem oder mehreren der vorangehenden Ansprüche,
• – Einbringen der Vorrichtung in den Mund einer Person längsseits der Zunge, so dass ein gerundeter Wandbereich des zweiten Saugrohrlängenabschnittes an der Lingualfläche des Alveolarfortsatzes anliegt.

For an advantageous development of a method for aspirating liquid from the mouth of a person, the invention proposes the method steps:

• Providing a device according to one or more of the preceding claims,
• Inserting the device into the mouth of a person alongside the tongue such that a rounded wall portion of the second suction tube length portion abuts against the lingual surface of the alveolar process.

For related effects and advantages, reference is made to the rest of the description. There are numerous possibilities for advantageous development of the method according to the invention. It is preferred that an incisal edge is placed on a cutting edge (also referred to as incisal edge) of an anterior tooth or between two anterior teeth of the lower jaw. As a result, the position of the device can be held towards the rear against any possible sliding of the tongue. The support of the device on the "incisal notch" forms a fulcrum for their pivoting within narrow limits, both in vertical-sagitaller, as well as in the horizontal plane. Thus, the most favorable position for the extraction and the holding of the tongue can be easily found and kept. A person treated by hand in the event of painful touches, the device reposition itself. It is also advantageously possible for the device to be arranged in such a way that the fifth suction tube length section lies obliquely below the tongue on the one hand and obliquely below the lingual surfaces of the molar lateral teeth on the other side of the mouth floor. In order to create a negative pressure inside the liquid aspirating apparatus, it is preferable that the first suction tube length portion or the terminal portion is connected to a saliva ejector tube of a saliva suction device and that negative pressure is generated in the suction tube. Depending on the requirements, for example, in connection with a desired treatment of posterior teeth, there is the possibility that the tongue spacer is pressed laterally against the tongue. As a result, the tongue spacer as well as the tongue is kept at a distance from the molars. This is beneficial for effective drainage of this treatment region. In order to stabilize the position of the device in the mouth position, there is the possibility that a weight is attached to the retaining projection of the device.

When using the device according to the invention preferably hand position described below can be selected. This not only to correct positions (unpleasant sensation of pressure on sensitive structures), but also to basically secure a notch position on a mandibular anterior tooth or multiple mandibular anterior teeth. As standard handling is z. For example, the following possibility: On the field - related to the median levels - held with three fingers of lying on this side hand of the patient. The hand can be in front of the chin. The thumb may lie with a portion of its Kuppenrundung directly above the retaining ring between the chin recess and the first Saugrohrlängenabschnitt. The middle finger can touch the upper edge of the forward-pointing, in particular flattened, ring segment of the retaining ring with its tip (tactile orientation). The index finger can with its tip on the above tangent line of the outer radius of the pipe bend of the third Saugrohrlängenabschnittes opposite or behind one of the inzisallamelle 31 set inlaid incisal heirs. In the case of disabled persons or infants, the handling may possibly be simplified by a weight and / or a wire clip for holding.

Brief description of the drawings

The invention will be further described below with reference to the accompanying figures which show preferred embodiments of the invention. In detail shows:

1 in a side view a first embodiment of a device according to the invention,

1a a sectional view taken along section line Ia-Ia 1 in contrast, in magnification;

2 a plan view of the device in the direction of II according to 1 in contrast, in magnification;

3 a partial section along section line III-III according to 2 in contrast, in magnification;

4 in perspective the in 1 shown device, wherein the end of a saliva ejector tube is indicated with;

5 one too 4 comparable viewing direction to the local device, but with inserted into the oral cavity of a person distal portion;

6 schematically a view from the inside of the mouth on the device according to 1 ;

7 schematically shows an enlarged sectional view of the engagement of a mandibular anterior tooth in the anterior incisor edge;

8th schematically shows an enlarged sectional view of the engagement of a mandibular anterior tooth in the posterior incisor;

9 in perspective the in 1 a device shown, wherein a saliva ejector tube of a saliva suction device is attached thereto by means of a holding device and wherein a weight is attached to the device;

10 perspective a possible use of in 9 shown arrangement;

11 a side view of a device according to the invention according to a second preferred embodiment and

12 in perspective the in 11 shown device.

Description of the embodiments

The first with respect to the 1 to 4 presented first embodiment of a device according to the invention 1 for sucking liquid media has a suction tube 2 which includes a plurality of Saugrohrlängenabschnitte extending in different directions. A first Saugrohrlängenabschnitt 3 has a proximal longitudinal end 4 that with an outlet 5 for fluid of the device 1 is in fluid communication. This is followed by the proximal longitudinal end 4 in one piece a retaining ring 6 and on this on its proximal side a likewise in its interior hollow connecting portion 7 at, at its proximal longitudinal end 8th the front side, the outlet opening 5 located. It follows that a respective proximal longitudinal end of a respective section in the direction of extension closer to the outlet opening 5 is located as the respectively opposite so-called distal longitudinal end. The suction tube 2 further includes a second suction tube length portion 9 , The first intake pipe length section 3 and the second Saugrohrlängenabschnitt 9 are by means of a third Saugrohrlängenabschnitts 10 , a fourth Saugrohrlängenabschnittes 11 and a fifth Saugrohrlängenabschnittes 12 fluidly interconnected and spaced apart in a longitudinal direction L of the device. In the example, therefore, there are the third Saugrohrlängenabschnitt 10 , the fourth intake pipe length section 11 and the fifth suction pipe length portion 12 + between the first Saugrohrlängenabschnitt 3 and the second Saugrohrlängenabschnitt 9 , The first intake pipe length section 3 and the second Saugrohrlängenabschnitt 9 extend recognizably transversely, in the example almost perpendicular to the longitudinal direction L. The second Saugrohrlängenabschnitt 9 has in the example a shell-side suction port 13 on, slit-like along a longitudinal direction 14 the second Saugrohrlängenabschnittes 9 extends and toward the first Saugrohrlängenabschnitt 3 shows.

1a shows in a partial section a view of the second Saugrohrlängenabschnittes 9 in to the longitudinal direction L of the device 1 parallel, from proximal to distal leading direction, ie 1a shows the intake 13 in a direction to the longitudinal direction L of the device 1 vertical viewing plane. In this case, the suction port 13 partly by the in 1a cut shown tongue spacers 15 covered. The designated l ₁₄ length of the suction port 13 is about 15 mm in the example. The ratio of inner diameter d9 of the second Saugrohrlängenabschnittes 9 (This corresponds in the example, the inner diameter of the adjacent Saugrohrlängenabschnittes 12 ) to the slot width designated B is about 1.2 in the example. The first intake pipe length section 3 and in the straight extension extending terminal section 7 are almost parallel to the second Saugrohrlängenabschnitt 9 , which is closed at its free longitudinal end frontally. The second intake pipe length section 9 forms as it were a distal length of the device 1 whereas the first suction tube length section 3 and the connection section 7 form a proximal length section.

The tongue spacer 15 extends in a lamellar manner in a bay extending from the second Saugrohrlängenabschnitt 9 , the third Saugrohrlängenabschnitt 10 and the fourth suction pipe length portion 11 is bounded, with the tongue spacer 15 Lengthwise sectionally connected to each of these Saugrohrlängenabschnitte along adjacent edge portions either continuously or in sections. The in itself flat tongue spacer 15 geometrically biases a spacer plane E extending centrally therethrough that extends along the longitudinal direction L and along the longitudinal direction 14 the second Saugrohrlängenabschnittes 9 extends. 1a shows that the spacer plane E in their extension also centrally through the suction port 13 extends. One to the second Saugrohrlängenabschnitt 9 pointing edge section 16 of the tongue spacer 15 covers the intake opening 13 partially and extends directly in their opening cross-section. Alternatively, the tongue spacer could 15 with the edge portion 16 in the intake 13 something to penetrate or something outside the intake 13 run.

The third intake pipe length section 10 closes at its proximal longitudinal end 17 to a distal longitudinal end 18 the first Saugrohrlängenabschnittes 3 and is with respect to an imaginary geometric extension of the first Saugrohrlängenabschnittes 3 in a first angle counting direction (in the example, this runs clockwise) at a first angle α ₁ of about 86 degrees angled. The fourth intake pipe length section 11 closes at its proximal longitudinal end 19 to a distal longitudinal end 20 the third Saugrohrlängenabschnittes 10 and is with respect to a geometric extension of the third Saugrohrlängenabschnittes 10 in the first angle counting direction angled relative to a second angle α ₂ of about 46 degrees. The fifth intake pipe length section 12 closes at its proximal longitudinal end 21 to a distal longitudinal end 22 the fourth Saugrohrlängenabschnittes 11 and is with respect to a geometric extension of the fourth Saugrohrlängenabschnittes 11 in an opposite to the first Winkelzählrichtung second direction of rotation (ie in the example counterclockwise) angled by a third angle α ₃ of about 46 degrees. The second intake pipe length section 9 closes at its proximal longitudinal end 23 to a distal longitudinal end of the fifth Saugrohrlängenabschnittes 12 and is with respect to a geometric extension of the fifth Saugrohrlängenabschnittes 12 angled in the second counting direction by a fourth angle α ₄ of about 83.5 degrees. The connection section 7 borders on its distal longitudinal end 25 to the retaining ring 6 and is insofar mediate with the first Saugrohrlängenabschnitt 3 connected. In the 1 visible outer contour at the transition between the second Saugrohrlängenabschnitt and the fifth Saugrohrlängenabschnitt runs rounded. Deviatingly, a large or small rounding radius or even an angular transition would be possible in comparison.

In the example, at the fifth intake pipe length section 12 a second, slit-like in its longitudinal direction 26 extending suction port 27 educated. This goes at the transition from the fifth Saugrohrlängenabschnitt 12 in the second Saugrohrlängenabschnitt 9 in the suction opening formed there 13 over, with their length being about 4.75 mm in the example.

In the example is the retaining ring 6 along the largest part of the circumference of the suction pipe 2 radially outward over the connection section 7 and over the first suction tube length section 3 out. That of the second Saugrohrlängenabschnitt 9 opposite side is flattened. However, such a configuration is not mandatory. At the of the outlet opening 5 remote (in 1 so upper) front side 28 are groove-like depressions 29 introduced, which can serve to fix a wire clip.

In the example, the terminal section extends 7 and the Saugrohrlängenabschnitte 3 . 9 - 12 each in its longitudinal section straight. The third intake pipe length section 10 and the fifth suction pipe length portion 12 extend parallel to the longitudinal direction L of the device 1 , wherein a lateral center distance A ₁ in the example is 17 mm. A centrally through the first Saugrohrlängenabschnitt 3 running straight line 3. ' , one in the middle of the connection section 7 running straight line 7 ' , one centrally through the second Saugrohrlängenabschnitt 9 running straight line 9 ' , a centrally through the third Saugrohrlängenabschnitt 10 running straight line 10 ' , a centrally through the fourth Saugrohrlängenabschnitt 11 running straight line 11 ' and a center through the fifth Saugrohrlängenabschnitt 12 running straight line 12 ' extend in a common geometric plane.

An intersection of a centrally through the first Saugrohrlängenabschnitt 3 running straight lines 3. ' with a central through the third Saugrohrlängenabschnitt 10 running straight lines 10 ' is located at a distance A ₂ from an intersection of a center through the third Saugrohrlängenabschnitt 10 running straight lines 10 ' with a central through the fourth Saugrohrlängenabschnitt 11 running straight lines 11 ' which is 30 mm in the example. An intersection of a center through the third Saugrohrlängenabschnitt 10 running straight lines 10 ' with a central through the fourth Saugrohrlängenabschnitt 11 running straight lines 11 ' is located at a distance A ₃ of 24 mm in the example from an intersection of a center through the fourth Saugrohrlängenabschnitt 11 running straight lines 11 ' with a central through the fifth Saugrohrlängenabschnitt 12 running straight lines 12 ' , An intersection of a center through the fourth Saugrohrlängenabschnitt 11 running straight lines 11 ' with a central through the fifth Saugrohrlängenabschnitt 12 running straight lines 12 ' is located at a distance A ₄ from an intersection of a center through the fifth Saugrohrlängenabschnitt 12 running straight lines 12 ' with a central through the second Saugrohrlängenabschnitt 9 running straight lines 9 ' that in the Example is 25 mm. An intersection of a centrally through the first Saugrohrlängenabschnitt 3 running straight lines 3. ' with a central through the third Saugrohrlängenabschnitt 10 running straight lines 10 ' is at a distance A ₅ from the proximal longitudinal end 4 the first Saugrohrlängenabschnittes 3 , wherein the distance A ₅ in the example is 33 mm. A distance A ₆ between a rounded distal longitudinal end 30 the device 1 and an intersection of a center through the second Saugrohrlängenabschnitt 9 running straight lines 9 ' with a central through the fifth Saugrohrlängenabschnitt 12 running straight lines 12 ' is 27.2 mm in the example.

The at the fifth Saugrohrlängenabschnitt 12 trained suction port 27 points towards the straight line 10 ' , thus in the direction of a linear geometric extension of the third Saugrohrlängenabschnittes 10 , The slit-like suction opening 27 goes directly into the intake 13 the second Saugrohrlängenabschnittes 9 over and extends along a length portion of the fifth Saugrohrlängenabschnitt 12 ,

The device 1 has an incisal lamella 31 on. This extends within one of the first Saugrohrlängenabschnitt 3 , the third Saugrohrlängenabschnitt 10 and the fourth suction pipe length portion 11 Bounded bay and is in the example at said suction tube lengths 3 . 10 and 11 formed. The incisal lamella 31 has in the first embodiment of the device 1 two incisal heirs 32 . 33 which can each serve for seating on an incisal edge (cutting edge) of a mandibular anterior tooth. The incisal heirs 32 . 33 are in to that of the third third Saugrohrlängenabschnitt 10 away direction unaffected, so open. Every incisal heritage 32 . 33 has two opposite flanks 34 which enclose an acute angle in their extension and which in a notch bottom in a rounding 35 converge. In the example, the radius is rounding 35 2 mm. Measured along an angle bisector 36 owns the incisal heritage 32 . 33 between the rounding 35 and one in 8th dashed line indicated 37 a notch depth T of about 5 mm. In terms of the bisecting line 36 the flanks are lost 34 at a flank angle of 16 degrees in the example. The distance between the apex S of the incisal score 32 and one at the transition from the fifth suction pipe length portion 12 to the second Saugrohrlängenabschnitt 9 formed throat 38 (see. 4 ) is 53 mm in the example. The distance of the vertex S of the adjacent incisal heigth 33 to the throat 38 is slightly lower and amounts in the example to 45 mm. The device 1 is in the embodiment as an injection molded part made in one piece from PLA polymer.

The 5 to 8th illustrate a preferred use of a device according to the invention 1 , where for the representations again exemplified in the 1 to 4 embodiment shown is selected. In this respect, the illustrate 5 to 8th also an inventive method for aspirating liquid, in particular saliva, from the mouth of a person. When practicing the method, the device according to the invention 1 introduced into the mouth of a person shown schematically (partly in part), so that they are alongside the tongue 39 and so that a rounded wall portion of the second Saugrohrlängenabschnittes 9 on a lingual surface 40 of the alveolar process 41 is applied. In the practice of the method for a reliable suction, the position is particularly the suction port 13 really important. Has the respective tongue side no contact with the posterior teeth row and the supporting alveolar process 41 , accumulates all the saliva, as well as introduced cooling and rinsing liquids in a pond 42 (see. 6 ) in a recess formed by the alveolar crest, the lateral tongue margin and the floor of the mouth. Not only the saliva flowing in directly from the subgranular gland there, but also the one running down the inside of the cheek and from the gutter of the vestibular fold behind the last molar and over the retromolar alveolar process 41 Parotid saliva entering this cave. The same applies to already mentioned, possibly introduced rinsing or cooling liquids. The tongue spacer 15 , which could also be called tongue lamella, has the function of a spatula and can the lateral pressure of the tongue 29 in the direction of the posterior teeth. The function of the tongue muscle is, among other things, to keep the food bolus pressed during the mastication in interaction with the cheek muscles between the upper and lower rows of teeth. Therefore, a forceful movement when touched by foreign bodies is reflex-like and by a patient hardly arbitrary to suppress. Such a knee-jerk movement is all the more powerful the larger the foreign body is. This shows the advantage of the rigid lamellar design shown in the figures: Narrow and pulled up towards the root of the tongue, it also prevents the tongue from overgrowing over its upper edge and the posterior teeth row. Advantageously, the goal is achieved that the tongue blade (tongue spacers 15 ) remains in the desired holding position and that the suction power of the extraction system can prevail as much as possible. The tongue spacer 15 If necessary, its shape can be adapted to specific requirements, for which purpose, for example, an unwanted section can be removed. Also, to facilitate this, the tongue spacer became in the example 15 starting from its free longitudinal edge 43 an elongated recess 44 brought in. Also a supernumerary outlet 45 the lamellar edge of the tongue spacer 15 up-back can be shortened with a string cutter or the like if necessary at the small rounding. In 6 is with 46 the glandular parotis and with 47 called the Glandular sublingulis. With the reference number 48 is schematically the position of the so-called. attached gingiva (attached gums) of the alveolar process 41 (also referred to as alveolar crest).

The 7 and 8th comparatively show the possibilities, the device 1 either by means of her front incisal score 32 or its posterior incisal score 33 on a cutting edge of an anterior tooth 49 of the lower jaw. In 7 became the more proximally located incisal heel 32 and in 8th the more distal incisal edge 33 selected. The incisal lamella 31 has three bays in the example 50 . 51 . 52 showing the two incisal heirs 32 . 33 beranden. The Bay 50 serves to keep the lamellar edge of the soft tissue of the lip and the areas or bays 51 . 52 serve (depending on the selected incisal score 32 . 33 ) for spacing the sipe edge from the marginal gum (marginal gingiva). The incisal heirs 32 . 33 should primarily a shifting of the device 1 prevent forward and backward. By variable attachment to different mandibular anterior teeth sections, the location of the slot-shaped suction port 13 slightly in the sagittal direction (that is, after "back" and "forward") are varied. In an upright position of a person or a patient, the first Saugrohrlängenabschnitt and the second Saugrohrlängenabschnitt and thus also the slot-shaped suction opening extend 13 vertically or substantially vertically so that one could also speak of a vertical suction slot. The incisal heirs 32 . 33 are designed so that even with a powerful twisting of the device 1 in the horizontal direction the cutting edges of the anterior teeth 49 of the lower jaw can not break. Incidentally, the material PLA proposed for the production is sufficiently yielding to counteract this danger as well. In the figures, it is indicated that for generating a negative pressure in the intake manifold 2 the connection section 7 with a saliva ejector tube 53 can be connected, which may be part of an otherwise not shown, but a skilled person known saliva suction device. From the description it is clear that in the device according to the invention 1 As an important aspect, a blockage of the suction flow can be prevented. Such blockage is of great importance in the most frequently discussed reflux contamination in saliva ejector and spray siphon tubes. On the other hand, in the device according to the invention 1 in the example in 6 shown lateral support of the suction tube, the suction port 13 at the second Saugrohrlängenabschnitt 9 that the first Saugrohrlängenabschnitt 3 is facing, not or at least not completely closed, so that the suction is not blocked.

The saliva ejector tube 53 can at the device 1 by means of an in 9 illustrated wire clips 54 be held in addition. As 9 shows, this can be the wire clip 54 into the wells 29 of the retaining ring 6 intervention. Should an elastic hose coupling unintentionally from the device 1 solve, the coupling would still receive. 10 shows as an additional possibility that on the retaining ring 6 and the adjacent sections of the suction tube 2 in the lateral direction a weight 55 , which is suitably geometrically adapted, was plugged. The weight 55 also allows the passage of the wire clip 54 to the retaining ring 6 , On its side facing the chin of a person is the weight 55 convex and forms a support surface 56 , As a modification would be conceivable, instead of a fixed shape in the dimension, in particular in length, variable support means to the weight 55 to be attached, so that an adaptation to different anatomies and applications is possible.

That in the 11 and 12 shown second embodiment of a device according to the invention 1 differs from the example described above in that in the incisal lamella 31 just an incisal heritage 32 is trained.

The above explanations serve to explain the inventions as a whole, which further develop the state of the art independently, at least by the following feature combinations, namely:
A device characterized by a first suction tube length portion 3 , its proximal longitudinal end 4 with an outlet opening 5 communicates with or an outlet opening 5 and a second suction tube length portion 9 wherein the first Saugrohrlängenabschnitt 3 and the second Saugrohrlängenabschnitt 9 by means of at least one further Saugrohrlängenabschnittes 10 . 11 . 12 fluidly connected to each other and in a longitudinal direction L of the device 1 spaced apart, wherein the first Saugrohrlängenabschnitt 3 and in particular, the second suction pipe length portion 9 transverse, in particular perpendicular, extend to the longitudinal direction L, wherein the second Saugrohrlängenabschnitt 9 at least one shell-side intake opening 13 facing toward the first suction tube length portion 2 and / or towards an imaginary extension of the first Saugrohrlängenabschnittes 2 shows.

A device which is characterized in that the at least one suction opening is slot-shaped, wherein the slot longitudinal direction along the longitudinal direction 14 the second Saugrohrlängenabschnittes 9 extends, wherein the length l _{14 of} the suction port 13 is in particular in a value range of 12 to 18 mm and in particular 15 mm, and wherein a ratio of clear width, in particular of an inner diameter d ₉ , the second Saugrohrlängenabschnittes 9 to a slot width B is in particular in a range of values from 1.0 to 1.4 and in particular 1.2.

A device, which is characterized in that the device has a, in particular lamellar tongue spacers 15 which, with the suction pipe 2 is connected and the geometrically one centered by the tongue spacers 15 leading spacer plane E spans, extending along the longitudinal direction L of the device 1 and extends along to the longitudinal direction of the second Saugrohrlängenabschnittes, wherein it is provided in particular that the spacer plane E in an imaginary geometric extension, in particular centrally, through the at least one suction port 13 extends.

A device characterized in that the tongue spacer 15 a, in particular straight, edge portion 16 has, which is completely or lengthwise parallel to an opening cross-section of the suction port 13 and in particular in the opening cross section of the at least one suction opening 13 extends.

A device characterized in that the suction tube 2 a third Saugrohrlängenabschnitt 10 having at its proximal longitudinal end 17 to the distal longitudinal end 18 the first Saugrohrlängenabschnittes 3 connects and in relation to a geometric extension of the first Saugrohrlängenabschnittes 3 is bent in a first angle counting direction by a first angle α ₁ in the range of 82-90 degrees, in particular of 86 degrees, that the suction tube 1 a fourth Saugrohrlängenabschnitt 11 having at its proximal longitudinal end 19 to the distal longitudinal end 20 the third Saugrohrlängenabschnittes 10 connects and in relation to a geometric extension of the third Saugrohrlängenabschnittes 10 is bent in the first angle counting direction by a second angle α ₂ in the range of 40-52 degrees, in particular of 46 degrees, that the suction tube 1 a fifth Saugrohrlängenabschnitt 12 having at its proximal longitudinal end 21 to the distal longitudinal end 22 the fourth Saugrohrlängenabschnittes 11 connects and in relation to a geometric extension of the fourth Saugrohrlängenabschnittes 11 is angled in a direction opposite to the first Winkelzählrichtung second direction of rotation by a third angle α ₃ in the range of 40-52 degrees, in particular of 46 degrees, and that the second Saugrohrlängenabschnitt 9 at its proximal longitudinal end 23 to the distal longitudinal end 24 the fifth Saugrohrlängenabschnittes 12 connects, with respect to a geometric extension of the fifth Saugrohrlängenabschnittes in the second Winkelzählrichtung by a fourth angle α ₄ in the range of 79.7-87.5 degrees, preferably of 83.5 degrees, angled and is closed at its distal longitudinal end frontally ,

A device characterized in that the device 1 a connection section 7 having at its proximal longitudinal end 8th an outlet opening 5 and at its distal longitudinal end 25 , in particular straight, is connected to the first Saugrohrlängenabschnitt.

A device, characterized in that at the fifth Saugrohrlängenabschnitt 12 at least one slit-like in its longitudinal direction 26 extending suction port 13 formed in the at the second Saugrohrlängenabschnitt 9 trained suction port 13 merges and which has a length which is in particular in a range of 4.5 to 5 mm and in particular 4.75 mm.

A device characterized in that between the suction section 7 and the first suction pipe length portion 3 a retaining ring 6 is formed, which along the entire circumference or along a peripheral portion radially outwardly beyond the connecting portion 7 and the first suction tube length portion 3 protruding, in particular provided that the retaining ring 6 an end facing away from the outlet opening 28 has, in the wells 29 are introduced.

A device, characterized in that the connection section 7 , the first intake pipe length section 3 , the second intake pipe length section 9 , the third intake pipe length section 10 , the fourth intake pipe length section 11 and the fifth suction pipe length portion 12 each straight in their respective length section.

A device, characterized in that the third Saugrohrlängenabschnitt 10 and the fifth suction pipe length portion 12 parallel to the longitudinal direction L of the device 1 extend, wherein in particular it is provided that a lateral distance A ₁ between a centrally through the third Saugrohrlängenabschnitt 10 extending straight line and a centrally through the fifth Saugrohrlängenabschnitt 12 extending straight line in Range is 15-20 mm and in particular 17 mm.

A device, characterized in that a centrally through the first Saugrohrlängenabschnitt 3 running straight line 3. ' , one centrally through the second Saugrohrlängenabschnitt 9 running straight line 9 ' , a centrally through the third Saugrohrlängenabschnitt 10 running straight line 10 ' , a centrally through the fourth Saugrohrlängenabschnitt 11 running straight line 11 ' and a center through the fifth Saugrohrlängenabschnitt 12 running straight line 12 ' run in a common geometric plane.

A device, characterized in that an intersection of a centrally through the first Saugrohrlängenabschnitt 3 running straight line 3. ' with a central through the third Saugrohrlängenabschnitt 10 running straight line 10 ' at a distance A ₂ from an intersection of a center through the third Saugrohrlängenabschnitt 10 running straight line 10 ' with a central through the fourth Saugrohrlängenabschnitt 11 running straight line 11 ' is in the range of 28 to 32 mm and in particular 30 mm is that an intersection of a centrally through the third Saugrohrlängenabschnitt 10 running straight line 10 ' with a central through the fourth Saugrohrlängenabschnitt 11 running straight line 11 ' at a distance A ₃ from an intersection of a center through the fourth Saugrohrlängenabschnitt 11 ) running straight line 11 ' with a central through the fifth Saugrohrlängenabschnitt 12 running straight line 12 ' is in the range of 22 to 26 mm and in particular 24 mm is that an intersection of a centrally through the fourth Saugrohrlängenabschnitt 11 running straight line 11 ' with a central through the fifth Saugrohrlängenabschnitt 12 running straight line 12 ' at a distance A ₄ from an intersection of a center through the fifth Saugrohrlängenabschnitt 12 running straight line 12 ' with a central through the second Saugrohrlängenabschnitt 9 running straight line 9 ' which is in the range of 23 to 27 mm and in particular 25 mm.

A device, characterized in that an intersection of a centrally through the first Saugrohrlängenabschnitt 3 running straight line 3. ' with a central through the third Saugrohrlängenabschnitt 10 running straight line 10 ' at a distance A ₅ from the proximal longitudinal end 4 the first Saugrohrlängenabschnittes 3 lying in the range of 31 to 35 mm and in particular is 33 mm.

A device which is characterized in that a distance A ₆ between a, in particular rounded, distal longitudinal end 30 the device 1 and an intersection of a center through the second Saugrohrlängenabschnitt 9 running straight lines 9 ' and a center through the fifth Saugrohrlängenabschnitt 12 running straight lines 12 ' is in the range of 25-29 mm and in particular 27.2 mm.

A device characterized in that the tongue spacer 15 at the second Saugrohrlängenabschnitt 9 and / or at the fourth Saugrohrlängenabschnitt 11 and / or at the fifth Saugrohrlängenabschnitt 12 molded or attached.

A device, characterized in that the at the fifth Saugrohrlängenabschnitt 12 trained shell-side intake 27 towards a linear geometric extension of the third Saugrohrlängenabschnittes 10 is directed, in particular slit-like, in particular to the suction port 13 the second Saugrohrlängenabschnittes 9 connects and in particular starting from the suction port 13 the second Saugrohrlängenabschnittes 9 along a longitudinal portion of the fifth Saugrohrlängenabschnittes 12 extends.

A device characterized in that the device 1 at least one incisal lamella 31 which is within one of the first Saugrohrlängenabschnitt 3 , the third Saugrohrlängenabschnitt 10 and the fourth suction pipe length portion 11 Bounded bay is located and the one on the first 3 and / or third 10 and / or fourth Saugrohrlängenabschnitt 11 molded or attached, the incisal lamella 31 at least one, in particular two, incisal heirs 32 . 33 for placement on an incisal edge, or having the incisal edge 32 . 33 or the incisal heirs 32 . 33 in to that of the third Saugrohrlängenabschnitt 10 away direction.

A device that is characterized in that the incisal heritage 32 . 33 or that any incisal heritage 32 . 33 two opposing flanks sharing an acute angle 34 that in the notch bottom in a rounding 35 converge, with a radius of rounding 35 is in particular in the value range of 1.8 to 2.2 mm and in particular 2.0 mm, with a notch depth T, along an angle bisector 36 the two flanks 34 from the rounding 35 up to a mouth line 37 is measured, in particular in the value range of 4 to 6 mm and in particular 5 mm, and wherein a flank angle between a respective edge 34 and the bisector 36 is in particular in a range of values of 14 to 18 degrees and in particular 16 degrees.

A device characterized in that the device 1 an incisal heritage 32 having a distance from the apex S of the notch bottom of this incisal heel 32 to one at the transition from the fifth Saugrohrlängenabschnitt 12 to the second Saugrohrlängenabschnitt 9 formed throat 38 is in a value range of 50 to 56 mm and in particular 53 mm, and / or that the device 1 an incisal heritage 33 having a distance from the apex S of the notch bottom of this incisal heel 33 to one at the transition from the fifth Saugrohrlängenabschnitt 12 to the second Saugrohrlängenabschnitt 9 formed throat 38 is in a value range of 42 to 48 mm and in particular 45 mm.

A device which is characterized in that the device consists of PLA polymer or has PLA polymer.

A device characterized in that the device ( 1 ) is made in one piece, in particular as an injection molded part or as part created by means of 3D printing.

• – Bereitstellen einer erfindungsgemäßen Vorrichtung 1,
• – Einbringen der Vorrichtung 1 in den Mund einer Person längsseits der Zunge 39, so dass eine gerundeter Wandbereich des zweiten Saugrohrlängenabschnittes 9 an der Lingualfläche 40 des Alveolarfortsatzes 41 anliegt.

A method characterized by the following method steps:

• - Providing a device according to the invention 1 .
• - Introduce the device 1 in the mouth of a person alongside the tongue 39 so that a rounded wall portion of the second Saugrohrlängenabschnittes 9 at the lingual surface 40 of the alveolar process 41 is applied.

A method that is characterized in that an incisal heritage 32 . 33 on a cutting edge of an anterior tooth 49 or between two anterior teeth of the lower jaw is placed.

A method characterized in that the device ( 1 ) is arranged so that the fifth Saugrohrlängenabschnitt 12 diagonally below the tongue 39 on the one hand and diagonally below the lingual surfaces 40 on the other hand, the molar side teeth lie on the lateral floor of the mouth.

A method, characterized in that the first Saugrohrlängenabschnitt 3 or the connection section 7 with a saliva ejector tube of a saliva suction device 53 is connected and that negative pressure in the suction pipe 2 is produced.

A method characterized in that the tongue spacer 15 , especially from the person in whose mouth the device 1 used to aspirate liquid, laterally against the tongue 39 is pressed.

A method which is characterized in that the retaining ring 6 the device 1 a weight 55 is attached.

All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize with their features independent inventive developments of the prior art, in particular to make on the basis of these claims divisional applications.

LIST OF REFERENCE NUMBERS

1

contraption

2

suction tube

3

first suction tube length section

3 '

Just

4

proximal longitudinal end

5

outlet opening

6

retaining ring

7

connecting section

7 '

Just

8th

proximal longitudinal end

9

second Saugrohrlängenabschnitt

9 '

Just

10

third suction tube length section

10 '

Just

11

fourth suction tube length section

11 '

Just

12

fifth suction tube length section

12 '

Just

13

suction

14

longitudinal direction

15

Tongue spacer

16

edge portion

17

proximal longitudinal end

18

distal longitudinal end

19

proximal longitudinal end

20

distal longitudinal end

21

proximal longitudinal end

22

distal longitudinal end

23

proximal longitudinal end

24

distal longitudinal end

25

distal longitudinal end

26

longitudinal direction

27

suction

28

front

29

deepening

30

distal longitudinal end

31

Inzisallamelle

32

Inzisalkerbe

33

Inzisalkerbe

34

flank

35

curve

36

bisecting

37

mouth line

38

throat

39

tongue

40

lingual

41

alveolar

42

pond

43

longitudinal edge

44

recess

45

outlet

46

Glandular parotid

47

Glandular sublingulis

48

attached gingiva (attached gums)

49

anterior

50

bay

51

bay

52

bay

53

Saliva suction hose

54

Wire Clips

55

Weight

56

bearing surface

d ₃

Inner diameter

d ₉

Inner diameter

d ₁₀

Inner diameter

₁₁

Inner diameter

d ₁₂

Inner diameter

l ₁₄

length

B

slot width

e

Spacer layer

L

longitudinal direction

S

vertex

T

notch depth

A ₁

distance

A ₂

distance

A ₃

distance

A ₄

distance

A ₅

distance

A ₆

distance

α ₁

angle

α ₂

angle

α ₃

angle

α ₄

angle

Claims (27)

Contraption ( 1 ) for aspirating liquid, in particular saliva, cooling liquid or rinsing liquid, from the mouth of a person, comprising a suction tube ( 2 ), which comprises: a first suction tube length section ( 3 ), whose proximal longitudinal end ( 4 ) with an outlet opening ( 5 ) or an outlet opening ( 5 ), and a second Saugrohrlängenabschnitt ( 9 ), wherein the first Saugrohrlängenabschnitt ( 3 ) and the second Saugrohrlängenabschnitt ( 9 ) by means of at least one further Saugrohrlängenabschnittes ( 10 . 11 . 12 ) are fluidly connected to each other and in a longitudinal direction (L) of the device ( 1 ) are spaced apart, wherein the first Saugrohrlängenabschnitt ( 3 ) and in particular the second Saugrohrlängenabschnitt ( 9 ) extend transversely, in particular perpendicular, to the longitudinal direction (L), wherein the second Saugrohrlängenabschnitt ( 9 ) at least one shell-side suction opening ( 13 ), which are in the direction of the first Saugrohrlängenabschnitt ( 3 ) and / or toward an imaginary extension of the first Saugrohrlängenabschnittes ( 3 ) shows. Contraption ( 1 ) according to claim 1, characterized in that the at least one suction opening ( 13 ) is slot-shaped, wherein the slot longitudinal direction along the longitudinal direction ( 14 ) of the second Saugrohrlängenabschnittes ( 9 ), wherein the length (l ₁₄ ) of the suction opening ( 13 ) is in particular in a value range of 12 to 18 mm and in particular 15 mm, and wherein a ratio of clear width, in particular of an inner diameter (d ₉ ), of the second Saugrohrlängenabschnittes ( 9 ) to a slot width (B) is in particular in a value range of 1.0 to 1.4 and in particular 1.2. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ), in particular lamellar, tongue spacers ( 15 ), which with the suction pipe ( 2 ) and the geometrically one centered by the tongue spacer ( 15 ) leading spacer plane (E) extending along the longitudinal direction (L) of the device ( 1 ) and along the longitudinal direction ( 14 ) of the second Saugrohrlängenabschnittes ( 9 ), wherein it is provided in particular that the spacer plane (E) in an imaginary geometric extension, in particular centrally, through the at least one suction port ( 13 ). Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the tongue spacer ( 15 ), in particular straight, edge portion ( 16 ), which extends completely or lengthwise in sections parallel to an opening cross-section of the suction opening (FIG. 13 ) and in particular in the opening cross section of the at least one suction opening ( 13 ). Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the suction pipe ( 2 ) a third Saugrohrlängenabschnitt ( 10 ), which at its proximal longitudinal end ( 17 ) to the distal longitudinal end ( 18 ) of the first Saugrohrlängenabschnittes ( 3 ) and in relation to a geometric extension of the first Saugrohrlängenabschnittes ( 3 ) is angled in a first angle counting direction by a first angle (α ₁ ) in the range of 82-90 degrees, in particular of 86 degrees, that the suction tube ( 1 ) one fourth suction tube length section ( 11 ), which at its proximal longitudinal end ( 19 ) to the distal longitudinal end ( 20 ) of the third Saugrohrlängenabschnittes ( 10 ) and in relation to a geometric extension of the third Saugrohrlängenabschnittes ( 10 ) is angled in the first angle counting direction by a second angle (α ₂ ) in the range of 40-52 degrees, in particular of 46 degrees, that the suction tube ( 1 ) a fifth Saugrohrlängenabschnitt ( 12 ), which at its proximal longitudinal end ( 21 ) to the distal longitudinal end ( 22 ) of the fourth Saugrohrlängenabschnittes ( 11 ) and in relation to a geometric extension of the fourth Saugrohrlängenabschnittes ( 11 ) is angled in a range of 40-52 degrees, in particular 46 degrees, in a second direction of rotation opposite to the first angle counting direction by a third angle (α ₃ ), and in that the second intake tube length section ( 9 ) at its proximal longitudinal end ( 23 ) to the distal longitudinal end ( 24 ) of the fifth Saugrohrlängenabschnittes ( 12 ) is angled in relation to a geometric extension of the fifth Saugrohrlängenabschnittes in the second angle counting direction by a fourth angle (α ₄ ) in the range of 79.7-87.5 degrees, preferably of 83.5 degrees, and at its distal longitudinal end closed at the front. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ) a connection section ( 7 ), which at its proximal longitudinal end ( 8th ) an outlet opening ( 5 ) and at its distal longitudinal end ( 25 ), in particular in a straight line, with the first suction tube length section ( 3 ) connected is. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that at the fifth Saugrohrlängenabschnitt ( 12 ) At least one slit-like in the longitudinal direction ( 26 ) extending suction port ( 27 ) formed in the at the second Saugrohrlängenabschnitt ( 9 ) formed intake opening ( 13 ) merges and which has a length which is in particular in a range of 4.5 to 5 mm and in particular 4.75 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that between the suction section ( 7 ) and the first Saugrohrlängenabschnitt ( 3 ) a retaining ring ( 6 ) is formed, which along the entire circumference or along a peripheral portion radially outwardly beyond the connecting portion ( 7 ) and the first Saugrohrlängenabschnitt ( 3 protruding, wherein it is provided in particular that the retaining ring ( 6 ) an end facing away from the outlet opening ( 28 ) into the depressions ( 29 ) are introduced. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the connection section ( 7 ), the first suction tube length section ( 3 ), the second Saugrohrlängenabschnitt ( 9 ), the third Saugrohrlängenabschnitt ( 10 ), the fourth suction tube length section ( 11 ) and the fifth suction tube length section ( 12 ) each extend straight in their respective length section. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the third suction tube length section ( 10 ) and the fifth suction tube length section ( 12 ) parallel to the longitudinal direction (L) of the device ( 1 ), wherein it is provided in particular that a lateral distance (A ₁ ) between a centrally through the third Saugrohrlängenabschnitt ( 10 ) extending straight line and a centrally through the fifth Saugrohrlängenabschnitt ( 12 ) extending straight line in the range of 15-20 mm and in particular 17 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that a center through the first Saugrohrlängenabschnitt ( 3 ) straight line ( 3. ' ), one centrally through the second Saugrohrlängenabschnitt ( 9 ) straight line ( 9 ' ), a centrally through the third Saugrohrlängenabschnitt ( 10 ) straight line ( 10 ' ), a centrally through the fourth Saugrohrlängenabschnitt ( 11 ) straight line ( 11 ' ) and a central through the fifth Saugrohrlängenabschnitt ( 12 ) straight line ( 12 ' ) run in a common geometric plane. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that an intersection of a center through the first Saugrohrlängenabschnitt ( 3 ) straight line ( 3. ' ) with a center through the third Saugrohrlängenabschnitt ( 10 ) straight line ( 10 ' ) at a distance (A ₂ ) from an intersection of a center through the third Saugrohrlängenabschnitt ( 10 ) straight line ( 10 ' ) with a center through the fourth Saugrohrlängenabschnitt ( 11 ) straight line ( 11 ' ), which is in the range of 28 to 32 mm and in particular 30 mm, that an intersection of a centrally through the third Saugrohrlängenabschnitt ( 10 ) straight line ( 10 ' ) with a center through the fourth Saugrohrlängenabschnitt ( 11 ) straight line ( 11 ' ) at a distance (A ₃ ) from an intersection of a center through the fourth Saugrohrlängenabschnitt ( 11 ) straight line ( 11 ' ) with a central through the fifth Saugrohrlängenabschnitt ( 12 ) straight line ( 12 ' ), which is in the range of 22 to 26 mm and in particular 24 mm, that an intersection of a centrally through the fourth Saugrohrlängenabschnitt ( 11 ) straight line ( 11 ' ) with a central through the fifth Saugrohrlängenabschnitt ( 12 ) straight line ( 12 ' ) at a distance (A ₄ ) from an intersection of a center through the fifth Saugrohrlängenabschnitt ( 12 ) straight line ( 12 ' ) with a central through the second Saugrohrlängenabschnitt ( 9 ) straight line ( 9 ' ), which is in the range of 23 to 27 mm and in particular 25 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that an intersection of a center through the first Saugrohrlängenabschnitt ( 3 ) straight line ( 3. ' ) with a center through the third Saugrohrlängenabschnitt ( 10 ) straight line ( 10 ' ) at a distance (A ₅ ) from the proximal longitudinal end ( 4 ) of the first Saugrohrlängenabschnittes ( 3 ), which is in the range of 31 to 35 mm and in particular 33 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that a distance (A ₆ ) between a, in particular rounded, distal longitudinal end (A) 30 ) of the device ( 1 ) and an intersection of a centrally through the second Saugrohrlängenabschnitt ( 9 ) extending straight lines ( 9 ' ) and a centrally through the fifth Saugrohrlängenabschnitt ( 12 ) extending straight lines ( 12 ' ) is in the range of 25-29 mm and in particular 27.2 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the tongue spacer ( 15 ) at the second Saugrohrlängenabschnitt ( 9 ) and / or at the fourth suction tube length section ( 11 ) and / or at the fifth suction tube length section ( 12 ) is molded or attached. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the at the fifth Saugrohrlängenabschnitt ( 12 ) formed shell-side suction port ( 27 ) in the direction of a linear geometric extension of the third Saugrohrlängenabschnittes ( 10 ) is directed, in particular slit-like, in particular to the suction port ( 13 ) of the second Saugrohrlängenabschnittes ( 9 ) and in particular starting from the intake ( 13 ) of the second Saugrohrlängenabschnittes ( 9 ) along a longitudinal portion of the fifth Saugrohrlängenabschnittes ( 12 ). Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ) at least one incisal lamella ( 31 ) within one of the first length of suction tube ( 3 ), the third Saugrohrlängenabschnitt ( 10 ) and the fourth Saugrohrlängenabschnitt ( 11 Bounded bay and the first ( 3 ) and / or third ( 10 ) and / or fourth Saugrohrlängenabschnitt ( 11 ) is formed or fixed, wherein the incisal lamella ( 31 ) at least one, in particular two, incisal heifers ( 32 . 33 ) for placement on an incisal edge, wherein the incisal edge ( 32 . 33 ) or the incisal heirs ( 32 . 33 ) to that of the third suction tube length section (FIG. 10 ) away direction. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the incisal score ( 32 . 33 ) or that every incisal heritage ( 32 . 33 ) two opposing flanks enclosing an acute angle ( 34 ) in the notch bottom in a rounding ( 35 ), where a radius of rounding ( 35 ) is in particular in the value range from 1.8 to 2.2 mm and in particular 2.0 mm, wherein a notch depth (T), which along an angle bisector ( 36 ) of the two flanks ( 34 ) of the rounding ( 35 ) up to a mouth line ( 37 ), in particular in the value range of 4 to 6 mm and in particular 5 mm, and wherein a flank angle between a respective edge ( 34 ) and the bisector ( 36 ) is in particular in a value range of 14 to 18 degrees and in particular 16 degrees. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ) an incisal score ( 32 ), wherein a distance from the apex (S) of the notch bottom of this incisal notch ( 32 ) to one at the transition from the fifth Saugrohrlängenabschnitt ( 12 ) to the second Saugrohrlängenabschnitt ( 9 ) formed throat ( 38 ) is in a value range of 50 to 56 mm and in particular 53 mm, and / or that the device ( 1 ) an incisal score ( 33 ), wherein a distance from the apex (S) of the notch bottom of this incisal notch ( 33 ) to one at the transition from the fifth Saugrohrlängenabschnitt ( 12 ) to the second Saugrohrlängenabschnitt ( 9 ) formed throat ( 38 ) is in a value range of 42 to 48 mm and in particular 45 mm. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ) consists of PLA polymer or has PLA polymer. Contraption ( 1 ) according to one or more of the preceding claims, characterized in that the device ( 1 ) is made in one piece, in particular as an injection molded part or as part created by means of 3D printing. Method for aspirating liquid, in particular saliva, cooling liquid or Rinsing liquid, from the mouth of a person, comprising the steps of: - providing a device ( 1 ) according to one or more of the preceding claims, - introducing the device ( 1 ) in the mouth of a person alongside the tongue ( 39 ), so that a rounded wall portion of the second Saugrohrlängenabschnittes ( 9 ) at the lingual surface ( 40 ) of the alveolar process ( 41 ) is present. Method according to claim 22, characterized in that an incisal score ( 32 . 33 ) on a cutting edge of an anterior tooth ( 49 ) or between two anterior teeth of the lower jaw is placed. Method according to one or more of claims 22-23, characterized in that the device ( 1 ) is arranged so that the fifth suction tube length section ( 12 ) obliquely below the tongue ( 39 ) on the one hand and diagonally below the lingual surfaces ( 40 ) of the molar posterior teeth, on the other hand, lies on the lateral floor of the mouth. Method according to one or more of claims 22-24, characterized in that the first suction tube length section ( 3 ) or the connection section ( 7 ) is connected to a saliva ejector tube of a saliva suction device and that negative pressure in the suction tube ( 2 ) is produced. Method according to one or more of claims 22-25, characterized in that the tongue spacer ( 15 ), in particular by the person in whose mouth the device ( 1 ) is used to aspirate liquid, laterally against the tongue ( 39 ) is pressed. Method according to one or more of Claims 22-26, characterized in that the retaining ring ( 6 ) of the device ( 1 ) a weight ( 55 ) is attached.

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