WO1999037238A1

WO1999037238A1 - Saliva aspirator for dental treatment

Info

Publication number: WO1999037238A1
Application number: PCT/JP1998/000316
Authority: WO
Inventors: Hiroshi Ohguchi
Original assignee: Hiroshi Ohguchi
Priority date: 1997-01-21
Filing date: 1998-01-27
Publication date: 1999-07-29
Also published as: JPH10262993A; JP4152468B2

Abstract

A saliva aspirator for dental treatment which can suck and discharge saliva and dirty water and at the same time can separate the tongue, the buccal mucosa and the like from the teeth as a treatment site merely by setting the aspirator within the mouth. An aspirator (1) is set in an opened oral cavity (22), and a vacuum pump (28) is turned on. This permits the interior of the aspirator (1) to be put under negative pressure, ensuring the suction and discharge, through a plurality of saliva suction holes (10) provided in a deep section (5) and a front returning section (7), of the saliva secreted from the submandibullar gland, parotid gland, and sublingual gland during dental treatment, dirty water within the oral cavity created during the treatment, and cooling water injected into the oral cavity when a rotary cutting tool (29) is used at the time of cutting the tooth. In this case, the patient's intraoral organs, such as the tongue (30) and the buccal mucosa, are impeded by the deep section (5), a curved continuous section (6), and the front returning section (7), thus permitting the organs to be prevented from approaching the tooth portion to be treated.

Description

Specification

Saliva suction device for dental care

The present invention relates to a saliva suction device for dental care,

In dental care, it is necessary to aspirate and drain saliva and sewage generated in the oral cavity during treatment, and to isolate the tongue and mucous membrane from the teeth at the treatment site. For this reason, in the past, it was performed using a vacuum tip attached to the flexible arm of the dental unit, or an assistant or hygienist performed using a vacuum tip for the dental o.

However, due to poor fixation and stability of the vacuum tip in the oral cavity, it is not possible to reliably isolate the oral organs such as the tongue that moves unexpectedly during dental treatment from the tooth at the treatment site. Was. Operating the vacuum tip according to the treatment of the dentist was an extremely skilled task for assistants and hygienists.

The present invention has been made in view of the above, and is intended to provide a saliva suction device for dentistry capable of suctioning and discharging saliva and sewage simply by being worn in the oral cavity and isolating the tongue and mucous membranes from the teeth at the treatment site. The purpose is to provide. Disclosure of the invention

To achieve the above object, the dental saliva suction device of the present invention according to claim 1 uses a single tube that is shaped by a shape-retaining wire, and is provided at approximately the center of the tube. A substantially U-shaped locking portion that locks to either the upper or lower tooth, and extends from the locking portion substantially parallel to the back of the oral cavity along both sides of the upper or lower ridge. A front return portion extending substantially parallel to the outside of the oral cavity along both sides of the mandibular ridge or the maxillary ridge from the depth portion; and a suction connection extending from the front end of the front return portion to the outside of the oral cavity. A saliva suction tool for dentistry, wherein a plurality of saliva suction holes are provided in at least the depth portion or the front return portion. The saliva suction device according to claim 1, wherein the shape-retaining wire is wound in a coil shape at a portion from the depth to the front return portion.

According to the saliva suction tool for dental medical treatment of the present invention described in claim 3, in the configuration according to claim 1 or claim 2, the elasticity wire is used for the shape-retaining wire, and the flexibility is improved. It is characterized by having been given.

According to a fourth aspect of the present invention, there is provided the dental medical saliva suction device according to the first to third aspects, wherein the shape-retaining wire is provided with a portion having different portability or elasticity. It is characterized by having.

According to a fifth aspect of the present invention, there is provided the dental saliva suction tool according to the first to fourth aspects of the present invention, wherein the shape retaining wire is made of a metal wire and is heat-treated or heat-treated. It is characterized by imparting properties.

According to a sixth aspect of the present invention, there is provided a dental medical saliva suction device according to the first to fifth aspects, wherein a stainless alloy wire is used as the shape-retaining wire.

According to a seventh aspect of the present invention, there is provided the dental medical saliva suction device according to the first to fifth aspects, wherein a nickel-titanium alloy wire is used as the shape-retaining wire. I do.

The dental saliva suction tool of the present invention described in claim 8 is the dental medical saliva suction tool according to claim 1, wherein the tube is cut at the locking portion and bent into the substantially U shape. While exposing the wire for shape retention, the cut end of the tube is carefully It is characterized by being tightly sealed.

The dental saliva suction tool of the present invention described in claim 9 is the configuration according to claims 1 to 8, wherein the exposed portion of the shape-retaining wire is covered with a soft member. I do.

The saliva suction tool for dental medical treatment according to the present invention described in claim 10 is a substantially U-shaped hook that is locked to either the upper teeth or the lower teeth using a flexible and shape-retaining pipe material. A locking portion, a depth portion extending substantially parallel from the locking portion along both sides of the maxillary ridge or lower ridge toward the back of the oral cavity, and from the depth portion along both sides of the lower ridge or upper ridge. A front return portion extending substantially parallel to the outside of the oral cavity, and a suction connection portion formed at a front end of the front return portion, and a plurality of salivas are provided at least in the depth portion or the front return portion along the mandibular ridge. A dental saliva suction device for dental use, wherein a suction hole is provided.

The saliva suction device for dental medical treatment according to the present invention described in claim 11 is the configuration according to claim 1 to claim 10, wherein one of the front ends of the front return section is hermetically sealed. The suction connecting portion is formed at one of the other front ends. The dental saliva suction tool of the present invention described in claim 12 is the configuration according to claim 1 to claim 11, wherein any one of the front ends of the front return sections is hermetically sealed. A substantially U-shaped bent portion was formed by a wire protruding from the sealing portion, and the bent portion was bridged to the front end of one of the other front return portions, and the suction connection portion was formed at the front end. It is characterized by the following.

The saliva suction tool for dental medical care according to the present invention described in claim 13 is the device according to claim 1, wherein a bent portion is formed at one of the front end portions of the front return portion. And either the upper or lower jaw is straddled and is connected to the other of the front return sections so as to be able to be sucked.

The dental saliva suction device of the present invention described in claim 14 is the device according to claim 1 to claim 13, wherein one of the front return portion and the depth portion is provided. A net or screen for closing the throat is provided.

The dental saliva suction device of the present invention according to claim 15 is the dental saliva suction device according to claim 1, wherein the intraoral organ is provided between the depth portion and the front return portion on one side or both sides. It is characterized in that a separating member to be separated is inserted. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view of the suction tool 1. FIG.

FIG. 2 is a perspective view showing a state in which the suction tool 1 is mounted in the oral cavity 22.

FIG. 3 is a perspective view of a suction tool 1 showing a modification.

FIG. 4 is a perspective view of a suction tool 1 showing another modification.

FIG. 5 is a partially cutaway perspective view showing a modification of the suction device 1.

FIG. 6 is a perspective view showing a state in which the downward curved portion 6 of the suction tool 1 is bent.

FIG. 7 is a perspective view of the suction tool 31. FIG.

FIG. 8 is a perspective view of a main part showing a modification of the suction tool 31. FIG.

FIG. 9 is a perspective view of the suction tool 41.

FIG. 10 is a perspective view showing a state in which the suction tool 51 is mounted in the oral cavity 22. FIG. 11 is a perspective view showing a modification of the suction tool 51. FIG.

FIG. 12 is a perspective view showing a state where the suction tool 61 is attached to the oral cavity 22. FIG. 13 is a plan view of the net # 1.

FIG. 14 is a perspective view of the suction tool 81. FIG.

FIG. 15 is a perspective view showing a state in which the suction tool 81 with the net-shaped separating member 91 stretched is mounted in the oral cavity 22.

FIG. 16 is a perspective view of the suction tool 101. FIG.

FIG. 17 is a perspective view showing an example of mounting the suction tool 1 (41) in the oral cavity 22. BEST MODE FOR CARRYING OUT THE INVENTION

According to the saliva suction device for dentistry of the present invention according to claim 1, the locking portion is locked to either the upper teeth or the lower teeth, and is attached to the open oral cavity. A depth portion extending substantially parallel from the locking portion extends along both sides of the upper ridge or lower ridge, and a front return portion extending almost parallel to the outside of the oral cavity extends along both sides of the lower ridge or upper ridge. Then, the suction tube is connected to the suction connection portion extending from the front end of the front return portion to the outside of the oral cavity and sucked, so that the dental treatment can be performed at least through the plurality of saliva suction holes provided in the depth portion or the front return portion. The saliva generated from the parotid, submandibular and sublingual glands inside and the oral wastewater generated during treatment can be reliably sucked and discharged. In addition, the depth part and the anterior return part can prevent the oral organs of the tongue and granulosa from approaching the tooth part to be treated, and can be isolated so that they do not touch treatment equipment, etc. Can be secured. Furthermore, by forming the locking portion and the overall shape using a single tube that is retained on the wire for retaining the shape, the attachment and detachment in the oral cavity is facilitated, and at the same time, any one of the upper teeth can be used. The locking part can be locked and stabilized by holding the upper and lower teeth or jaw ridges in the open state, so that a single dental doctor can treat without the need for assistance. It has the effect that it can be mounted even if it is turned upside down.

The dental saliva suction device of the present invention according to claim 2 is configured such that the shape-retaining wire at the portion from the depth portion to the front return portion is wound in a coil shape. The flexure can be adjusted. Therefore, the fatigue reaction when the patient maintains the open state for treatment can be reduced by the bending reaction force acting on the oral cavity when worn, and treatment can be performed for a long time.

In the saliva suction device for dental medical treatment according to the third aspect of the present invention, since a wire having elasticity is used for the shape-retaining wire, the depth portion and the front return portion are bent so as to approach and separate from each other. It can be easily installed and removed in the oral cavity.

The dental saliva suction tool of the present invention described in claim 4 has an elasticity in a shape-retaining wire. Since the parts having different sexes are provided, the dentist can change the shape according to the size of the oral cavity of the patient, the arrangement of the teeth, and the like, so that the dentist can improve the fitting property in the oral cavity. The saliva suction device for dental medical treatment according to the present invention described in claim 5 is such that a metal wire for shape retention is subjected to heat treatment to impart elasticity, and a predetermined portion has predetermined elasticity. This makes it easy for the dentist to change the shape in accordance with the size of the oral cavity of the patient, the arrangement of the teeth, and the like, and achieves more excellent wearability.

In the dental saliva suction tool of the present invention described in claim 6, since a stainless steel wire is used as the wire for shape keeping, the predetermined temperature can be easily determined according to the part by adjusting the heat treatment conditions and the wire diameter. This makes it possible for the dentist to easily change the shape in accordance with the size of the oral cavity of the patient, the arrangement of the teeth, and the like, thereby realizing better wearability.

The dental saliva suction device of the present invention according to claim 7 uses a Nigel-titanium alloy wire as a shape-retaining wire, and the Nigel-titanium alloy wire is used according to a component ratio and annealing conditions. In the temperature range, favorable properties such as superelastic properties, work hardening properties, and shape memory properties can be provided. Therefore, by using these characteristics alone or in combination, it is possible to provide excellent usability and wearability. The saliva suction device for dental medical treatment according to the present invention described in claim 8 is characterized in that the shape-retaining wire rod bent in a substantially U-shape exposed at the locking portion is locked to either the upper teeth or the lower teeth. Since it is mounted in the oral cavity, the locking portion can be locked easily and reliably.

In the dental saliva suction device of the present invention according to claim 9, since the exposed portion of the shape-retaining wire is covered with a soft member, the exposed wire may directly contact the upper teeth or the lower teeth. Therefore, the patient's discomfort at the time of wearing can be reduced.

According to a tenth aspect of the present invention, there is provided a saliva suction device for dental care according to the present invention, which is formed using a pipe material having flexibility and shape retention properties, and a suction connection formed at a front end of a front return portion. A suction pipe is connected to the section for use. Since there is no wire for shape retention inside the pipe, it is easy to manufacture and easy to clean and disinfect. The dental saliva suction device of the present invention according to claim 11, wherein one of the front ends of the front return portion is sealed, and the suction connection portion is formed at the other front end. Since only one of the suction connection portion extending to the outside of the oral cavity and the suction pipe connected to the suction connection portion is provided, it is possible to reduce the discomfort of the patient when wearing the device.

The dental saliva suction device of the present invention according to claim 12 is configured to hermetically seal one of the front ends of the front return portion, and has a substantially U-shape by a wire protruding from the sealing portion. A bent portion is formed, and is bridged over the front end portion of one of the front return portions. The locking portion and the bent portion can lock both the upper and lower teeth. It is possible to perform reliable mounting without displacement in the oral cavity.

The saliva suction device for dental medical treatment according to the present invention described in claim 13 is characterized in that a bent portion is formed at one of the front end portions of the front return portion so as to straddle either the upper teeth or the lower teeth. , Which is connected to the other of the front return section so as to be able to suck, and only one of the suction connecting section extending to the outside of the oral cavity or the suction pipe connecting to the suction connecting section is provided. Can be reduced. In addition, since the bent portion straddles either the upper teeth or the lower teeth, it can be locked to both the upper teeth and the lower teeth by the locking portion and the bent portion, and the position in the oral cavity can be determined. It can be mounted securely without displacement.

In the dental saliva suction device of the present invention described in claim 14, since a net or a screen for closing the throat is provided in either the front return part or the depth part, the treatment is erroneously performed during the treatment. Even if small appliances fall into the oral cavity, they will not be swallowed.

The dental saliva suction device for dental medical treatment according to the present invention described in claim 15 is characterized in that an isolation member for isolating an intraoral organ is inserted between a depth portion on one or both sides and a front return portion, so that a tooth portion to be treated is provided. The oral organs of the tongue and mucous membrane can be prevented from approaching. [Example]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a saliva suction device for dental care (hereinafter simply referred to as a suction device) 1 according to the present invention. The suction tool 1 is formed by inserting a wire 3 for shape retention into a tube 2 made of soft rubber, synthetic resin or polymer resin and bending and bending the tube. First, a substantially central portion of the tube 2 is bent in two to form a substantially U-shaped locking portion 4. A depth portion 5 continually extending substantially parallel to the locking portion 4 and gently curved so as to bulge upward; and a curved continuation portion 6 curved at substantially the same curvature as the depth portion 5. Subsequent to the curved continuous portion 6, a front return portion 7 that is gently curved so as to expand downward is sequentially curved. The shape-retaining wire 3 in the tube 2 is inserted up to the front return portion 7 and keeps the above-mentioned portions. A suction connecting part 8 is formed in the tube 2 following the front return part 7, and a suction connecting pipe 9 that connects two ends of the suction connecting part 8 together is connected. Further, a plurality of saliva suction holes 10 are formed at predetermined intervals in the depth portion 5 and the front return portion 7. The suction tool 1 can also be formed by inserting a tube 2 from one end of a shape-retaining wire 3 in which each part is bent in advance. Further, the wire 3 for shape retention may be integrally inserted at the time of manufacturing the tube 2. Further, the shape of the outer peripheral surface of the tube 2 can be any shape such as a square, an ellipse, etc. in addition to a circle.

As shown in FIG. 2, the suction device 1 is configured such that when the engaging portion 4 is engaged with one of the maxillary teeth 21 and is mounted in the open oral cavity 22, the substantially parallel depth portion 5 has the maxillary ridge 2. Go to the back of the mouth along both sides of 3. At this time, the top 5a of the depth 5 on the 頰 side of the patient is located near the gingival transition (頰 the boundary between the mucous membrane and the gingiva), and the top 5b of the depth 5 on the lingual side is the palate and gingiva. It is located near the boundary of. The curved connecting portion 6 continuing to the depth portion 5 descends substantially in parallel toward both deep portions of the lower ridge 24 facing the upper ridge 23. The forward return part 7 that continues to the curved continuous part 6 extends along both sides of the mandibular ridge 24 Go outside the mouth. At this time, the lowest part 7a of the anterior return part 7 on the 頰 side of the patient is located at the gingival transition part, and the lower part 7b of the lingual front return part 7 is located at the boundary between the oral cavity and the gingiva. I do. Ends of the 吸引 -side suction connection portion 8 led out of the oral cavity 22 beyond the lower lip 25 and the lingual suction connection portion 8 led out of the oral cavity 22 over the mandibular front teeth 26 A vacuum pump 28 is connected via a suction tube 27 to the suction connection pipe 9 connecting the parts.

When the suction device 1 is mounted in the mouth 22 opened as described above, and the vacuum pump 28 is turned on, a negative pressure is generated in the suction device 1 so that a plurality of suction holes are provided in the depth portion 5 and the front return portion 7. From the saliva suction hole 10, the saliva generated from the submandibular, parotid, and sublingual glands during dental treatment, and the use of a rotary cutting tool 29 for the cutting of teeth and sewage in the oral cavity during treatment. Cooling water to be injected can be reliably sucked and discharged. At this time, the oral organ of the patient's tongue 30 3 mucous membrane is blocked by the depth portion 5, the curved continuous portion 6, and the front return portion 7, and can be isolated so as not to approach the tooth portion to be treated. Therefore, not only does it not interfere with the treatment, but also the tongue 30 of the patient, which causes unexpected movement, is not damaged by touching the rotary cutting tool 29 or the like. In addition, in the oral cavity 22, the locking portion 4 is locked to one of the maxillary teeth 21, and the upper and lower jaw ridges 23, 24 in an open state can be held, so an assistant is required. Treatment can be done by one dentist without any treatment.

Note that a suction / discharge device that does not use a vacuum pump may be used.

In addition, the suction tool 1 locks the locking portion 4 to one of the lower teeth, the depth portion 5 on both sides of the lower ridge 24, and the front return portion 7 on both sides of the upper ridge 23. The mounting configuration may be reversed. Then, the saliva suction hole 10 is not provided in the depth 5 along the maxillary ridge 23 or the front return section 7, and the saliva suction hole 1 in the lower ridge 24 or the front return section 7 is not provided. From 0, saliva that accumulates in the vicinity of the mandibular ridge 24, or sewage in the oral cavity generated during treatment may be suctioned and discharged.

In the suction device 1 of the present invention, only the front return portion 7 or both the depth portion 5 and the front return portion 7 can be formed in a straight line shape that is not curved (FIGS. 3 (a) and 3 (b)). Further In addition, as shown in FIG. 4, the saliva suction hole 10 can be formed entirely by connecting the straight depth portion 5 and the front return portion 7 continuously.

As shown in Fig. 5, a coil-shaped portion 3a around which a shape-retaining wire 3 is wound may be provided at a position in the tube 2 of the curved continuous portion 6 extending from the depth portion 5 to the front return portion 7. Flexibility can also be imparted. As a result, the coil-shaped portion 3a is bent so that the depth city 5 and the front return portion 7 can be moved closer to and away from each other as shown in FIG. 6, and can be easily attached to and detached from the oral cavity 22. Can be. In addition, it becomes possible to adjust the bending force by changing the winding diameter, coil pitch, etc., and reduce the fatigue when the patient maintains the open state for treatment by the bending reaction force that acts when the patient is attached. can do .

Furthermore, by using a wire wound in a small-diameter coil shape over the entire length or a wire having elasticity such as a piano wire as the wire 3 for shape retention, the depth portion 5 and the front return portion 7 can be formed. Can be greatly radiused so as to approach and separate from each other. Thereby, the same advantages as described above can be obtained.

The suction tool 31 shown in Fig. 7 cuts the tube 32 at the locking part 34, exposing the shape-retaining wire 33 bent approximately U-shaped, and locking it to any of the upper teeth. In addition, both cut ends 32a of the tube 32 are hermetically sealed. The exposed wire U3, which is bent in a substantially U-shape, can be easily and reliably locked to any of the upper teeth 21. Further, as shown in Fig. 8, the locking portion 34a where the shape-retaining wire 33 is exposed is covered with a soft member 35 such as rubber or synthetic resin, so that when locking, the metal wire is directly Feeling of discomfort when hitting can be reduced. In addition, a coated wire can be used as the wire 3 for shape retention.

In addition, the dentist changes the shape of the suction tool 1 and 3 1 according to the size of the oral cavity of the patient, the alignment of the teeth, etc., and attaches the wire by changing the flexibility of each part of the wire 3 for shape retention. Sex can be enhanced. To make the elasticity different structurally, change the diameter of the wire by stretching the specified part, or fit a pipe around the outer circumference of a thin wire, caulk or screw it in. The elasticity can be made different by connecting or brazing, etc., and capturing the strength. Furthermore, a predetermined portion of the shape-retaining wire can be replaced with a wire made of synthetic resin. When a metal wire is used, the elasticity can be made different from that of other parts by performing heat treatment such as energization, heating and quenching on a predetermined part in advance. It is also possible to use a stainless alloy wire as the shape-retaining wire 3, and to vary the flexibility for each predetermined portion. For example, austenitic stainless steel is partially transformed into a martensitic structure and hardened by plastic working. Also, when a solution treatment of heating to about 110 ° C and quenching is performed, the entire structure becomes a complete austenite structure and becomes extremely soft. Therefore, the required flexibility can be imparted to a predetermined site, and the suction tool 1 can be deformed by the dentist according to the size of the oral cavity of the patient, the alignment of the teeth, and the like, and excellent wearability can be realized. . And the stainless steel wire can be used only for a specific part of the wire 3 for shape retention.

A nickel-titanium alloy wire may be used as the wire 3 for shape retention. Known nickel-titanium alloys exhibit superelastic properties, work-hardening properties, or shape memory properties. By using these characteristics alone or in combination, it is possible to realize excellent usability and wearability. The nickel-titanium alloy wire exhibits superelastic properties when subjected to a long-time heat treatment at 350 to around 400 ° C. depending on the composition ratio, but shows work-hardening properties when heat-treated for a short time. Therefore, the elasticity can be easily changed by adjusting the heat treatment conditions and the wire diameter. Therefore, the portions of the wire 3 for shape retention, particularly those corresponding to the depth portion 5 and the front return portion 7, are made flexible by heat treatment such as solution treatment to increase the height of the patient's upper ridge 23 or lower ridge 24. Since the suction devices 1 and 31 can be shaped accordingly, the device can be more securely installed in the oral cavity, the usability can be improved, and the patient's discomfort when wearing the device can be reduced. In addition to the nickel-titanium alloy, for example, a copper-aluminum nickel-based alloy such as a shape memory alloy, a copper-zinc-aluminum-based alloy, or the like can also be used as the shape-retaining wire. The nickel-titanium alloy wire or the like is a specific shape-retaining wire 3. It can be used only for the site.

The suction tool 41 shown in FIG. 9 uses a metal or polymer resin pipe 42 having flexibility and shape retention, and is provided with a locking portion 44, a depth portion 45, a curved continuous portion 46, The front return part 47 and the suction connection part 48 ending in the oral cavity are bent, and a plurality of saliva suction holes 50 are formed in the depth part 45 and the front return part 47. Then, a suction tube 49 that passes over the lower lip 25 and the lower anterior teeth 26 is connected to the suction connection portion 48. When the material is made of a flexible synthetic resin, a soft feeling of wearing can be felt and the patient does not feel uncomfortable. Further, since the shape-retaining wire is not passed through the pipe 42 made of metal or synthetic resin, washing, disinfection, and the like are facilitated. The above suction device 41 can also be mounted in such a manner that the depth portion 45 is on both sides of the mandibular ridge 24, and the front return portion 47 is on both sides of the maxillary ridge 23, and the upside down is reversed. Then, without providing a saliva suction hole 50 in the depth section 45 or the front return section 47 along the maxillary ridge 23, the saliva suction of the depth section 45 or the front return section 47 along the mandibular ridge 24 is not provided. The saliva remaining in the mandibular ridge 24 and the sewage in the oral cavity generated during the treatment may be sucked and discharged from the hole 50 alone. Also, as shown in FIGS. 3 (a) and 3 (b), both the depth portion 45 and the front return portion 47 or only the front return portion 47 may be formed into a straight shape that does not bend. it can. Further, as shown in FIG. 4, a shape in which a linear depth portion 45 and a front return portion 47 are continuous may be employed. In addition, a pair of left and right suction tools 1, 3 1, 4 1 are simultaneously connected to the left and right upper ridge 21 and the lower ridge 24 by connecting the locking parts and the connecting parts for suction. It can be used by attaching.

In addition, the suction tool 51 shown in FIG. 10 is obtained by cutting the front return portion 57 of the relying side in each of the above suction tools at a position in the oral cavity 22 and hermetically sealing the cut end 57 a. It is. Since the suction connection portion 58 extending outside the oral cavity 22 is only one side, it is possible to reduce the patient's wearing feeling. The forward return portion 57 to be cut off may be on the lingual side.

A modification of the suction tool 51 shown in FIG. 11 is a shape-retaining shape projecting from the sealing portion of the cut end 57 a. A substantially U-shaped bent portion 59 is formed by the wire 53 for use, and is bridged over the front end of the other front return portion 57, and this bent portion 59 is locked to one of the lower jaw teeth. I do. As a result, the locking position of the suction tool 51 becomes two places by the locking portion 54 and the bent portion 59, so that the suction tool 51 can be more securely mounted in the oral cavity. Also in this case, the forward return portion 57 to be cut off may be on the lingual side. Further, the bent portion 59 may not be a wire for shape retention, but may be a wire simply fixed to the tip of the sealing portion.

The suction tool 61 shown in FIG. 12 has a tube shaft member 70 inserted between substantially parallel curved continuous portions 66, and the tube shaft member 70 has a net 71 shown in FIG. By inserting and fixing the handle 72, the throat can be closed by the net 71. As a result, there is no possibility that a small therapeutic instrument or the like that has fallen into the oral cavity 22 by mistake during treatment is swallowed. Instead of the net 71, a screen having air permeability may be used. The suction device 81 shown in FIG. 14 has a tape-shaped separating member 90 stretched between a depth portion 85 on the 頰 side or a lingual side and a front return portion 87. By providing the isolation member 90, it is possible to prevent the tongue and the oral organs such as mucous membranes from approaching the tooth portion to be treated with the treatment device or the like. Therefore, the dentist can concentrate on the treatment, and the patient does not have to worry about tension, such as moving the tongue out of the way of the treatment. Further, as shown in FIG. 15, a net-shaped separating member 91 may be stretched. By using a telescopic or other isolating member such as a tape net, the isolating member can be tensioned when the suction device 81 is attached, and the oral organs of the tongue and mucous membrane can be reliably isolated from the treatment site. Can be.

The suction device 101 shown in FIG. 16 has a front return portion 97 on the 頰 side of each of the above suction devices cut at a position in the oral cavity 22, and a bent portion 107 a is formed at the end thereof. It is straddled over any of the lower teeth and is connected to the front return portion 107 on the lingual side so as to be able to be sucked. Since only the suction connection portion 108 extending to the outside of the oral cavity 22 is provided, the patient's feeling of wearing can be reduced. Also, since the bent portion 107a is straddled over any of the lower jaw teeth, the locking position of the suction tool 101 is limited to two forces by the locking portion 104 and the bent portion 107a. It can be more reliably mounted in the oral cavity. In this case, the front return portion 107 to be disconnected may be on the lingual side. As shown in FIGS. 5 and 6, the locking portion 104 may have a form in which a shape-retaining wire is exposed.

FIG. 17 shows another example of mounting the suction tool 1 (41) in the oral cavity 22. The suction device 1 (41) is mounted with the front return portion 7 (47) crossing the inner part of the oral cavity.

In addition, each of the suction tools 51, 61, 81, and 91 can be installed in the oral cavity in the same manner as the suction tools 1, 31, and 41, with the top and bottom reversed.

Examples of the polymer resin material that is the material of the tube 3 and the pipe 42 include a polyvinyl chloride resin, a silicone resin, a latex rubber, a polyamide resin, a polyamide elastomer, a polyester resin, and the like. Polyester elastomer, polypropylene resin, polypropylene elastomer, polyethylene resin, FEP (tetrafluoroethylene hexafluoropropylene copolymer resin), PFA (perfluoroalkoxy resin), PTFE (polytetrafluoroethylene resin) Resin), fluororesin such as PVDF (PolyBull Fluoride), shape memory resin, ABS resin, polycarbonate resin, polyacetal resin, polyacrylate resin, etc. can be used.

In addition, foaming molding using these materials can further reduce discomfort.

When a wire having shape retention is used together, a resin material having excellent flexibility is preferable. A pipe material having shape retention and flexibility may be formed by a relatively hard resin material. The material forming these tubes and pipes may be a multi-layer structure or a combination of two or more materials, with braiding of metal or engineering plastics inside, or a reinforcing material such as a reinforcing wire, coil wire, etc. May be provided. The polymer resin material applicable to the present saliva suction device is not limited to the resin materials exemplified above. Industrial applicability

ADVANTAGE OF THE INVENTION According to the saliva suction tool for dental medical care of this invention, a latching part is latched to any of a maxillary tooth or a mandibular tooth, and is attached in an open mouth so that it may become substantially parallel from the latching part. The extending depth extends along both sides of the maxillary or mandibular ridge, and the front return section, which extends almost parallel to the outside of the oral cavity, extends along both sides of the mandibular or maxillary ridge. Then, by connecting the suction tube to the suction connection portion extending from the front end of the front return portion to the outside of the oral cavity and performing suction, at least from the plurality of saliva suction holes provided in the depth portion or the front return portion, during dental treatment. Saliva generated from the parotid, submandibular and sublingual glands, and oral sewage generated during treatment can be reliably sucked and discharged. In addition, the depth and frontal return can prevent the oral organs of the tongue and granulosa from approaching the tooth area to be treated, and can be isolated so that they do not touch the treatment instruments, etc. Can be secured. Furthermore, by forming the locking portion and the overall shape using a single tube that is shaped by the shape-retaining wire, it is easy to install and remove the product in the oral cavity, and at the same time, any one of the maxillary teeth Since the locking part can be locked and held by the open and closed upper and lower teeth or ridge, it can be treated by a single dentist without the need for assistants. It has the effect that it can be mounted even if it is turned upside down.

Claims

IB Claims

1. Using a single tube that is shaped by the shape-retaining wire,

A substantially U-shaped locking portion for locking to either the upper teeth or the lower teeth at a substantially central portion of the tube;

A depth portion extending substantially in parallel from the locking portion toward the back of the oral cavity along both sides of the maxillary or mandibular ridge;

A front return portion extending substantially parallel to the outside of the oral cavity from the depth portion along both sides of the mandibular ridge or maxillary ridge,

A suction connection portion extending from the front end of the front return portion to the outside of the oral cavity,

Together with

A saliva suction tool for dentistry, wherein a plurality of saliva suction holes are provided at least in the depth portion or the front return portion.

2. The dental saliva suction device for dental medical care according to claim 1, wherein the shape-retaining wire is wound in a coil shape in a region from the depth portion to the front return portion.

3. The saliva suction device for dentistry according to claim 1, wherein the shape retaining wire is made flexible by using a wire having elasticity.

4. The saliva suction device for dental care according to any one of claims 1 to 3, wherein a portion having different flexibility or elasticity is provided on the shape-retaining wire.

5. The saliva suction device for dental care according to claim 1, wherein flexibility or elasticity is imparted to the shape-retaining wire by heat treatment using a metal wire.

6. The saliva suction device for dental care according to claim 1, wherein a stainless alloy wire is used as the shape-retaining wire.

7. The saliva suction device for dental care according to claim 1, wherein a nickel-titanium alloy wire is used as the shape-retaining wire.

8. The tube is cut at the locking portion to expose the shape-retaining wire rod bent into the substantially U shape, and the cut end of the tube is hermetically sealed. Item 8. The dental saliva suction tool according to claim 1 or claim 8.

9. The saliva suction device for dental care according to claim 8, wherein an exposed portion of the shape-retaining wire is covered with a soft member.

10. Using a flexible and shape-retaining pipe material,

A substantially U-shaped locking portion for locking to either the upper or lower teeth,

A forward return portion extending from the depth portion along the both sides of the mandibular ridge or maxillary ridge outwardly of the oral cavity and substantially in the direction of the apple;

A suction connection portion is formed at the front end of the front return portion,

A saliva suction device for dental medicine, wherein a plurality of saliva suction holes are provided at least in the depth portion or the front return portion.

11. The suction device according to claim 1, wherein one of the front ends of the front return portion is hermetically sealed, and the suction connection portion is formed at the other front end. The dental saliva suction device for dental medical care according to any one of the above.

1 2. A front end of any one of the front return portions is hermetically sealed, and a substantially U-shaped bent portion is formed by a wire protruding from the seal portion. 12. The saliva suction device for dental care according to claim 1, wherein the suction connection portion is formed on the front end of the saliva suction device.

1 3. A bent portion is formed at one of the front end portions of the front return portion so that either the upper or lower tooth can be straddled, and suction can be performed to one of the other front return portions. The dental saliva suction device according to any one of claims 1 to 10, wherein the saliva suction device is used for dental care.

14. The dental saliva according to claim 1, wherein a net or a screen for closing a throat is provided in one of the front return portion and the depth portion. Suction tool.

15. The saliva suction device for dentistry according to any one of claims 1 to 14, wherein an isolation member for isolating an intraoral organ is inserted between the depth portion and the front return portion on one or both sides. .