Smaller diameter saliva ejector system that makes use of a young arch for its sliding support as a complement to the absolute isolation system over the oral cavity of a patient in a dental practice

Abstract

The present invention relates to a smaller diameter ejector system having a mini-ejector at its free end for suctioning or aspirating saliva and fluids from inside the oral cavity of a patient. The ejector system makes use of a Young arch for its sliding support through the cylindrical portions of the frame, which solves the drawback relating to the small space for working on dental pieces by using the absolute isolation system together with larger diameter ejectors used today. The system comprises a tube or hose for dental aspiration that has a smaller diameter than the hoses of conventional ejector systems and that, together with a mini-ejector for saliva or fluids located at its free end, facilitates all the movements of a dentist inside the oral cavity of a patient. Said ejector system is adjustably fastened by means of a semi-rectangular clamp-like part onto a Young instrument formed by a metal frame, which allows a rectangular hypoallergenic latex part to be fastened and supported under its surface by way of a dam. This part provides absolute isolation of the oral cavity of a patient, so it can be extended and secured without displacing said dam-like hypoallergenic latex part, which is secured to the underside of the metal frame by means of smaller flexible rectangular metal staples oriented transversely to the metal frame, which allow them to be folded and deployed. These staples are distributed around the outer perimeter of the frame every 1 / 6 of its total length.

Description

[0001] A SALIVA EJECTOR SYSTEM OF SMALLER DIAMETER THAT MAKES USE OF A YOUNG'S ARCH FOR ITS SLIDING SUPPORT AS A COMPLEMENT TO THE ABSOLUTE ISOLATION SYSTEM OVER THE ORAL CAVITY OF A PATIENT IN A DENTAL OFFICE.

[0002] Utility Model Field

[0003] The present utility model relates to dental systems and devices for patients in need of restorations, crowns, inlays, veneers and other dental procedures, specifically with an innovative saliva ejector system of smaller diameter that works as a complement to the absolute isolation system that uses a Young's arch for its sliding support on it, a system adaptable to any shape of arch for securing the rubber dam over the oral cavity of a patient in a dental office.

[0004] Background of the Utility Model

[0005] The following discussion of the prior art is intended to present the invention in an appropriate technical context and to allow its advantages to be properly appreciated. However, unless clearly stated otherwise, reference to any prior art in this specification should not be construed as an express or implied admission that such art is widely known or forms part of common knowledge in the field of saliva ejection systems used in a patient during dental treatment.

[0006] Saliva aspirators and cannulas are used during various dental procedures to suction excess saliva, water, fluids, or blood. These dental aspirators prevent excessive moisture in the mouth, facilitating the success of dental procedures.

[0007] Dentists, as healthcare professionals, must take all necessary measures to ensure the health of their patients.

[0008] Similarly, they must take the necessary precautions to stay healthy and avoid cross-contamination in the treatments they provide.

[0009] Generally, dental procedures result in the generation of blood, saliva, and other fluids that arise from the different treatments applied.

[0010] To prevent the patient from choking and to prevent the dentist from being hit by any of these fluids or having them interfere with visibility, suction systems are used during the procedure.

[0011] Types of dental suction

[0012] Among the most commonly used mechanisms in a dentist's office are dry suction and wet suction, as we explained in the article on types of dental suction.

[0013] Dry aspiration is a process that uses motors and aspiration systems to ensure that the cloud of microorganisms generated during treatments reaches a distance of less than 30 cm. It generally operates using a centrifuge.

[0014] Thus, in dry aspiration or wet aspiration, a tube is used that is inserted into the patient's mouth to collect saliva and residues of substances that are generated while treatments are applied to the patient.

[0015] In dry suction, the device consists of a cannula and a rubber tube or probe. In both cases, the centrifuge is activated to help separate the different types of waste.

[0016] The parts that make up these suction systems are a cannula and a rubber probe, as well as a suction motor that incorporates a centrifuge.

[0017] This type of vacuum cleaner requires the use of an anti-foaming tablet that is applied to the filter to prevent foam from forming in the suction system.

[0018] The importance of dental suction systems in the dental office

[0019] Suction systems are a fundamental part of a dentist's office and dental chair.

[0020] It is part of the elements that are necessary to provide good service to patients and to guarantee the safety and health of both the patient and the professional.

[0021] Any clinic must have properly installed suction systems, which can be of different types.

[0022] There are two types of suction systems: dry suction and wet suction.

[0023] Wet vacuuming is a system in which a vacuum motor works dry and incorporates a water and air separator preventing it from reaching the motor.

[0024] Dry suction, on the other hand, uses a centrifugal air and water separator that is usually located under the dental units.

[0025] The choice between dry and wet suction depends on the professional's needs. There are no specific advantages to using one system over the other; both are equally effective.

[0026] Dental suction system care

[0027] Whether you use a dry or wet vacuum system, the most important thing to keep in mind is that these systems require very specific maintenance and care.

[0028] Cleaning the dry or wet vacuum system is very important, as it needs to be cleaned daily with a disinfectant to prevent bad odors or blockages in the ducts.

[0029] Advantages and disadvantages of both systems

[0030] Wet aspiration

[0031] Wet suction systems are more modern systems that offer much simpler maintenance and provide a performance of 300 liters per minute per vacuum pressure cannula.

[0032] This is the system used by most dental clinics.

[0033] This system uses a centrifuge to separate air and water, performing a thorough cleaning process to remove liquid residue. However, it does have some drawbacks, such as requiring a drainage system in the machine room. Another disadvantage is that the suction motor must be located at the same level as the dental equipment.

[0034] Dry vacuuming

[0035] The dry vacuum system also offers advantages, such as being much more economical. It can also provide a fairly adequate flow rate of 300 liters per minute and does not require a drainage system to be installed in the machine room.

[0036] In the case of dry suction, it is not necessary for the suction motor to be at the level of the dental equipment, but it can be at a higher level.

[0037] Regarding the disadvantages of dry vacuuming systems, it should be noted that they require more maintenance than wet vacuuming.

[0038] In this case, a drainage system is needed in each dental unit.

[0039] Selector valve

[0040] The selector valve is an important part of the dry or wet suction system because it allows the airflow in the suction machine to be determined and regulated.

[0041] This selector valve is crucial for the proper functioning of the machine. It ensures that there are no disturbing noises for the patient or the dentist. It is a key component of dental suction replacement parts.

[0042] These suction systems are essential in any dental clinic, and therefore, it is important to select the system considering various factors, such as the type of system required, the quality of the centrifuge used for dry or wet suction, and the ease of maintaining these systems in perfect working order.

[0043] Aerosol cloud - The aerosol cloud generated by rotary handpieces can remain in ambient air for up to 30 minutes.

[0044] - The aerosol cloud in a dental treatment can cover an area of ​​more than 2 meters away from the patient.

[0045] - 1 ml of saliva contains approximately 100 million bacteria. For prior art information, see European patent document No. JP5436236B2, Manual suction piece for dental treatment unit and suction device comprising said manual suction piece.

[0046] Also, see US Patent No. US5037298A, an apparatus for expelling saliva and retracting cheeks and lips comprising a tongue retractor terminating in a pair of ends. A pair of saliva ejectors are secured to the tongue retractor. A tongue retainer is attached to the tongue retractor, and a cheek and lip retractor is connected to the tongue retainer. The process for removing saliva from an oral cavity containing a tongue and partially surrounded by cheeks and lips includes expanding the cheeks and lips of the oral cavity with a cheek and lip retractor. The process further comprises retracting the tongue within the oral cavity with a tongue retractor supported by the base of the oral cavity, retaining the tongue in a generally fixed position, and removing saliva along a structural portion of the tongue retractor.

[0047] Therefore, a system is needed to overcome the aforementioned problems related to costs, disposable items, and complex and uncomfortable systems for a patient in a dental office.

[0048] Summary of the Invention

[0049] The utility model's objective is to provide an ejector designed to be positioned inside the oral cavity without obstruction by the tongue and cheek. This device is part of a system that operates optimally without requiring replacement. It allows for direct work within the oral cavity on restorations, white fillings, crowns, inlays, veneers, and other procedures requiring absolute isolation of the oral cavity.

[0050] Currently in modern dentistry, we mainly work with resinous materials, which function through an adhesive system that is highly sensitive to moisture ("Hydrophobic"), so the teeth involved in the work must be isolated with a special rubber dam and the rest of the oral cavity is isolated under this rubber.

[0051] There are different types of rubber dams, but they are all arranged on a semi-rectangular metal arch called a Young's arch, which generally always has the same diameter.

[0052] When one isolates a quadrant in the oral cavity, the space available to work is significantly reduced, so the conventional ejector, made to be used inside the oral cavity, becomes too large, especially when working on the posterior teeth.

[0053] For these reasons, the need arises to create a smaller, more comfortable oral ejector that does not depend 100% on the use of my other hand or an assistant who is only holding the ejector system.

[0054] For this reason, a hose-type ejector is designed that enters the lumen of the conventional ejector receiver, continues extending with a smaller diameter hose which, at its free end, comprises a flexible plastic clamp which is slidably connected to the Young's Arch at the opposite end of which is located a mini ejector that has a metal core that allows it to be shaped as required by the dentist.

[0055] This solves the problem of not having a simple, low-cost, and easy-to-use saliva ejector system for both the patient and the dentist.

[0056] This and other objectives, which will become evident below, are achieved by means of the saliva ejector from inside the oral cavity of a patient in a dental office, as defined in claim 1.

[0057] Brief Description of the Figures

[0058] To make the present utility model more easily understood, reference will now be made to the accompanying figures which illustrate a preferred embodiment of the model where:

[0059] Figure 1 shows a schematic perspective view of the ejector system, in addition to the front elevation, right side view and plan view of the clamping and wedge element, according to the utility model.

[0060] Figure 2 shows a schematic view of the absolute isolation mode of a patient's mouth, showing a metal frame in the form of a Young's bow and the ring that allows the dentist to work, according to the utility model.

[0061] Figure 3 shows a schematic view of the absolute isolation mode of a patient's mouth. The Young's bow, the ring that allows the dentist to work, and the conventional ejector system that uses a larger diameter tube, according to the utility model, are visible.

[0062] Figure 4 shows a schematic view of the absolute isolation mode of a patient's mouth. The Young's arch, the ring that allows the dentist to work, and the ejector system of the utility model, which uses a smaller diameter tube and a mini ejector at its free end, are visible, according to the utility model.

[0063] Description of the Invention

[0064] The present utility model will now be described with reference to the following modalities, which should be considered in all respects as illustrative and not restrictive. In the figures, the corresponding characteristics within the same modality or common to different modalities have been assigned the same reference numbers.

[0065] In Figure 1, a schematic perspective view of the ejector system (1) of the utility model can be observed, connected to the aspiration system (2), either dry or wet, by means of a dental aspiration hose or tube (3) of smaller diameter than conventional ejector systems (4), which together with a mini saliva or fluid ejector (5) located at its free end (6) facilitates all the maneuvers of a dentist (7) inside the oral cavity (8) of a patient (9), said ejector system (1) is fixed in an adjustable manner by means of a semi-rectangular piece as a fastening and fitting element (10) in the example of the figure, semi-rectangular in shape to an instrument in the manner of a Young's bow (11) formed by a metal frame (12),The frame, which can have any suitable shape that allows fixing and supporting by its own weight under its surface a rectangular piece of hypoallergenic latex in the form of a dam (13), which provides absolute isolation of the oral cavity (8) of a patient (9), so that said piece of hypoallergenic latex in the form of a dam (13) is extended, it is secured to the lower face of the metal frame (12) by means of smaller metal staples (14) (which in this figure 1 are observed in their deployed position) of smaller dimensions, rectangular in shape, flexible, oriented transversely to the metal frame (12), which can be folded and unfolded, arranged equidistantly on its outer perimeter at 1 / 6 of its total length.

[0066] Subsequently, the ejector system (1) is attached in an adjustable manner to said metal frame (12) by means of the clamping and fitting element (10) of a flexible and soft semi-rectangular shape, which allows the ejector system (1) to slide along the sections of the metal tube that makes up the metal frame (12) and to be located in such a way as to allow clean and safe work by the dentist (7) inside the oral cavity (8) of a patient (9).

[0067] This metal frame (12) in the form of a Young's bow, is formed by a cylindrical tubular piece of smaller diameter (15) in the shape of a stylized “U” with its lower vertices curved (V) in a smaller radius, joined by means of a tubular section in the form of an extended arc (16) for the example of the utility model case, being able to have any suitable shape, which opens upwards towards its lower curved vertices (V), from this point it rises upwards opening at an angle of about 87° until it limits at its closed upper end forming two straight tubular portions left (17) and right (18).

[0068] At the free end (6) of the ejector system (1) is located a cylindrical piece of plastic of smaller diameter in the form of a mini dental ejector (5) at the end of which is located a suction nozzle (19) responsible for the suction of saliva or other fluids from inside the oral cavity (8) of the patient (9), from the suction nozzle (19) to the inside of the dental suction hose (3) to a shorter distance are located some portions of wire (20) made of surgical steel as a metallic core for the free end (6), which allow bending, flexing and forming said free end (6) of the ejector system (1) so that the dentist (7) can locate and maneuver it according to his requirements, without the need to have to relocate a system like the conventional ejector (1) every time he requires it.

[0069] In this figure 1, the anterior elevation, superior elevation and right lateral elevation (LD) of the portion acting as a fastening and fitting element (10) can also be observed, in the form of a rectangular prism with its rounded vertices, where towards its left lateral end (Ll) there is a straight cylindrical perforation (21) through the fastening and fitting element (10) parallel to the Y axis which allows the passage through it of the dental suction hose (3) of smaller diameter, of the ejector system (1) being secured inside in such a way as to allow its sliding, upwards (A) and downwards (B),Towards its right lateral end (LD) is a semi-cylindrical groove (22) that runs the height of the clamping and wedging element (10). This groove (22) allows the ejector system (1) to slide either towards the right lateral end (LD) or towards the left lateral end (Ll) along the straight left (17) and right (18) tubular portions of the metal frame (12) in the manner of a Young's arc. Towards the left lateral face (Ll) a rounded vertex (23) can be observed that runs the entire height of the portion that serves as a clamping and wedging element (10).

[0070] The reduced size of the ejector system (1) allows working in confined spaces such as posterior teeth (24).

[0071] In Figure 2, a schematic view of the method of absolute isolation of the oral cavity (8) can be observed by means of the hypoallergenic latex piece in the form of a dam (13), under the surface of the metal frame (12) and fixed by means of the smaller dimension metal staples (14) (which in this Figure 2 are observed folded), used to isolate the place to be worked from the rest of the oral cavity (8), which has a central perforation (25) which allows the dentist (7) to isolate the area to be treated using a dental staple or ring (26) around the tooth (24) to be operated on.As can be seen in Figure 3, schematic view of the absolute isolation mode of the oral cavity (8) of a patient (9), the metal frame (12) in the form of a Young's arch, the dental clamp or ring (26) that allows the dentist (7) to work, and a conventional ejector system (4) that uses a larger diameter hose (27) can be seen, which, due to its size and mode of use, does not allow a dentist (7) to work comfortably and safely inside the oral cavity (8) of a patient (9), even preventing and obstructing the use of instruments such as the dental mirror instrument (28).

[0072] In Figure 4, schematic view of the absolute isolation mode of the oral cavity (8) of a patient (9) shows the metal frame (12) in the form of a Young's bow, the dental clamp or ring (6) and the ejector system (1) of the utility model that uses a dental suction hose (3) of smaller diameter, which due to the smaller dimension of the mini ejector (5), diameter of the suction nozzle (19) and diameter of the suction hose (3) allows the dentist (7) to work with total comfort and safety.

[0073] In this figure 4, the different positions that the ejector system (1) can adopt around the metal frame (12) over the oral cavity (8) of a patient (9) can be observed in a segment line.

[0074] Industrial Application

[0075] The present utility model, according to its application, finds use in industry and in particular in the industry of the manufacture of dental devices and tools, the rubber industry, extraction pipes, suction pipes and silicones for dentistry, the plastics industry for the manufacture of plastic parts, nozzles and cannulas, the precision mechanical industry for the manufacture of nipples and connectors, and the oral or dental hygiene industry for dentistry.

[0076] List of reference numbers, memory and figures

[0077] Upwards

[0078] B Downwards

[0079] Left back LD Right back

[0080] V Curved lower vertices

[0081] 1 Ejector system

[0082] 2 Suction system

[0083] 3 Dental suction tubing or hose

[0084] 4 Conventional ejector system

[0085] 5 Mini saliva or fluid ejector

[0086] 6 Free end

[0087] 7 Dentist

[0088] 8 Oral cavity

[0089] 9 Patient

[0090] 10 Semi-rectangular shaped fastening and fitting element

[0091] 11 Young's Bow Instrument

[0092] 12 Metal frame

[0093] 13 Hypoallergenic latex piece as a dam

[0094] 14 Smaller metal staples

[0095] 15 Cylindrical tubular piece of smaller diameter

[0096] 16 Extended arc-shaped tubular section

[0097] 17 Left straight tubular portion

[0098] 18 Right straight tubular portion

[0099] 19 Suction nozzle

[0100] 20 Ejector System End Wire Portions

[0101] 21 Straight cylindrical drilling through the clamp

[0102] 22 Slot for sliding ejector system

[0103] 23 Rounded vertex

[0104] 24 Dental Pieces

[0105] 25 Central drilling

[0106] 26 Dental staple or ring

[0107] 27 Larger diameter hose for conventional ejector system

[0108] 28 Dental mirror instrument

[0109] 29 Straight vertical vertex (2)

Claims

AMENDED CLAIMS received by the International Bureau on June 2, 2025 (02.06.2025) 1. A mini ejector (1) for the suction or aspiration of saliva and fluids from inside a patient's oral cavity (8) (9), which solves the problem of high costs and limited working space, especially in posterior teeth (24), by employing an absolute isolation system in conjunction with the conventional ejectors currently used with a larger diameter (4), CHARACTERIZED in that it comprises a dental aspiration hose (3) of reduced diameter in which, at its free end (6), a mini ejector (5) is provided, wherein the mini ejector (1) uses a dental instrument called a Young's frame in the form of a metal frame (12), for its sliding support through cylindrical portions (16, 17 and 18) of said frame (12),which additionally serves as support by its own weight and by folding or unfolding ring-like portions (14) of smaller dimensions, rectangular in shape, flexible, oriented transversely to the metal frame (12), which can be folded and unfolded equidistantly on its outer perimeter at 1 / 6 of its total length in order to support a piece of hypoallergenic latex as a flexible insulating surface to cover dental pieces (13) which is part of the absolute isolation system of the oral cavity (8), which is not used to accumulate fluids as a reservoir or fluid-containing surface within the oral cavity, as is currently used.

2. The mini ejector (1) according to claim 1, CHARACTERIZED in that the adjustable connection both to the left side (Ll) and to the right side (LD) between the dental suction pipe or hose (3) of the mini ejector (1) to the metal frame (12) in the form of a Young's arc is made by means of a clamping and fitting element (10) which allows fixing and sliding the mini ejector (1) along the sections of the stylized “U” shaped metal tube that forms the metal frame (12).

3. The mini ejector (1) according to claim 2, CHARACTERIZED in that said metal frame (12) is formed by a cylindrical tubular piece of smaller diameter (15) of semi-rectangular shape, being able to have any suitable shape that allows fixing and supporting by its own weight under its surface a piece of hypoallergenic latex of rectangular shape as a flexible insulating surface to cover dental pieces (13) to achieve absolute isolation of the oral cavity (8) and not to accumulate fluids as a reservoir as is currently used, said frame (12) has its lower vertices curved (V) in a smaller radius, joined by means of a tubular section in the form of an extended arc oriented upwards (16) that opens towards its lower curved vertices (V),From this point it rises in a straight line upwards, inclining outwards at an angle of approximately 87° until it limits itself at its closed upper end, forming a straight tubular portion left (17) and right (18).

4. The mini ejector (1) according to claim 3, CHARACTERIZED in that at the free end (6) there is located a mini suction nozzle (19) of smaller diameter for a hose of smaller diameter, than that currently used by dentists, the mini nozzle (19) being positioned inside a dental suction hose (3) of smaller diameter up to a shorter distance, portions of flexible metal wire (20) made of surgical steel are located as a metal core for the free end (6), which allow bending, flexing and forming said free end (6) of the mini ejector (1) so that a dentist (7) can locate and maneuver it according to his requirements, without the need to have to relocate the system each time as occurs with conventional ejectors (4) that carry a hose of larger diameter and a non-maneuverable nozzle, without any maneuverability.

5. The mini ejector (1) according to claim 4, CHARACTERIZED in that the clamping and wedging element (10) has a rectangular prism shape with its left lateral vertex (Ll) rounded (23) in its height in the form of a semi-cylinder, where a straight cylindrical perforation (21) is located centered through the total height of the clamping and fitting element (10) parallel to the Y-axis, which allows the passage through it of the dental suction hose (3) of smaller diameter, remaining confined inside in such a way as to allow its sliding, upwards (A) and downwards (B),Towards its right lateral end (LD) there is a semi-cylindrical groove (22) that runs the height of the clamping and fitting element (10). This groove (22) forms two straight vertical vertices (29) which allow the clamping and fitting element (10) to be precisely fitted and adjusted, while at the same time allowing the mini ejector (1) to slide either towards the right side (LD) or towards the left side (Ll) of the extended arc-shaped tubular section oriented upwards (16) and along the left (17) and right (18) straight tubular portions of the metal frame (12) in the manner of a Young's arc.

6. The mini ejector (1) according to claim 5, CHARACTERIZED in that the hypoallergenic latex piece as a flexible insulating surface to cover dental pieces (13), has a central perforation (25) that allows the dentist (7) to isolate the area and the dental piece, especially the posterior pieces of the oral cavity to be treated, without the function of collecting fluids like conventional flexible dam surfaces.

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