Intraoral suction device

Abstract

An intra-oral suction device comprising: a vacuum hose connected to a suction source; a vacuum tip that includes a tube with a base end that is connectable to the front end of the vacuum hose and with a front end forming a suction opening; and a bag-shaped light source holder which is provided on the tube outer surface, on the tube inner surface, or inside a tube wall of the vacuum tip, or at locations corresponding to a combination thereof, the light source holder extending along the longitudinal direction of the vacuum tip and having an opening at one end thereof.

Description

[Technical field]

[0001] The present invention relates to an oral suction device having a vacuum tip. [Background technology]

[0002] In dentistry, suction devices are used that use a suction device attached to the end of a vacuum hose to suck up and remove unwanted materials from the oral cavity. The main suction devices are saliva ejectors that only suck up liquids (saliva, blood, or water) and vacuum tips that can suck up both liquids and solids (lost teeth, metal fragments, etc. in the oral cavity). This intraoral suction device is required to have a practical lighting function. When using a general shadowless lamp, the dentist's cutting handpiece or mirror, or the assistant's suction vacuum tip, cast a shadow in the narrow space of the oral cavity, so the affected area must be illuminated while avoiding the cutting handpiece or vacuum tip, and the angle must be adjusted each time the angle of the patient's mouth changes even slightly. In particular, the light from the shadowless lamp has difficulty reaching the root canal openings of the distal buccal and mesial buccal roots of the maxillary molars. In view of this, inventions have been made relating to intraoral devices having a lighting function to replace general shadowless lights (see Patent Documents 1 to 4).

[0003] Patent documents 1 to 3 disclose a method of guiding light guided by an optical fiber or the like to the base end of the vacuum tip into the oral cavity by a light guide member provided on the vacuum tip. However, using an optical fiber and providing a light guide member leads to an increase in development costs. Therefore, as an option for the structure to reduce development costs, it is possible to install one or more light sources connected to a power source by a conductor in the part of the vacuum tip that is inserted into the oral cavity.

[0004] On the other hand, since hundreds of types of bacteria live in the oral cavity, and various bacteria that cause diseases live and grow there, in dental treatment, the part of the oral suction device that enters the patient's oral cavity is required to be removable and sterilized or replaceable with a new one. Furthermore, if the light source and wiring themselves can be removed from the vacuum tip, there is no need to consider the water resistance or heat resistance of the light source, electrical connection points, and conductors when cleaning the vacuum tip. On the other hand, if the light source and wiring themselves are not expected to be cleaned with water or heat, they are required to be designed so that saliva, etc. in the oral cavity does not get on them. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] U.S. Patent No. 5,931,670 [Patent Document 2] Special Publication No. 2002-506676 [Patent Document 3] JP 2005-177143 A [Patent Document 4] Special Publication No. 2010-514532 Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to provide an oral suction device in which a light source unit including a light source and a portion of a conductor connected to the light source can be removably installed on the vacuum tip side of the oral suction device to be inserted into the oral cavity. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the present invention has the following configuration. 1) An aspect of the present invention is An oral suction device, comprising: a vacuum hose connected to a suction source; a vacuum tip including a tube having a base end connectable to the tip of the vacuum hose and a tip that is a suction port; a bag-shaped light source holder provided on an outer surface of the tube of the vacuum tip, on an inner surface of the tube, within a tube wall, or a combination thereof, extending along a longitudinal direction of the vacuum tip and having an opening on a base end side of the vacuum tip; A light source for intraoral illumination; a power supply conductor connected to the light source; The tip of the light source holder does not protrude from the suction port of the vacuum tip; and A portion of the conductor including at least a portion that can be inserted into the oral cavity and the light source can be inserted into and removed from the light source holder through the opening Contained in It is characterized by the above. 2) In the above embodiment, The vacuum tip is characterized in that one or more of the light source holders are provided on the outer surface of a tube of the vacuum tip. 3) In the above embodiment, At least one of the light source holders of the vacuum tip may include a branch portion extending away from an outer surface of a tube of the vacuum tip near the opening. 4) In the above embodiment, The light source holder is characterized by having a C-shaped holder clip that fits onto the outer peripheral surface of the vacuum tip. 5) In the above embodiment, The vacuum tip further includes a substantially C-shaped holder clip that wraps around the vacuum tip and the light source holder positioned thereon. 6) In the above embodiment, The light source holder may be provided with a valve at the opening. 7) In the above embodiment, a hose side electrode provided near the tip of the vacuum hose; a tip-side electrode provided at an opening of the light source holder for receiving power from the hose-side electrode; the conductor comprises a first conductor that electrically connects a power source and the hose side electrode, and a second conductor that electrically connects the light source and the tip side electrode; A part of the conducting wire that is inserted into and removed from the light source holder is the second conducting wire; and The present invention is characterized in that, when the connection between the vacuum tip and the vacuum hose is completed, the tip side electrode and the hose side electrode are positioned so as to be in contact with and conductive with each other. 8) In the above embodiment, The attachment may further include a tube having a base end connectable to the tip of the vacuum hose and a tip end connectable to the base end of the vacuum tip. 9) In the above embodiment, The vacuum tip is characterized in that one or more of the light source holders are provided on the outer surface of a tube of the vacuum tip. 10) In the above embodiment, At least one of the light source holders of the vacuum tip may include a branch portion extending away from an outer surface of a tube of the vacuum tip near the opening. 11) In the above embodiment, The light source holder is provided with a C-shaped holder clip that fits onto the outer peripheral surface of the vacuum tip, and the light source holder is positioned on the outer peripheral surface of the vacuum tip by fitting the holder clip into the vacuum tip. 12) In the above embodiment, a holder clip having an inner frame with a partially cut-out annular shape that fits with an outer frame formed by the vacuum tip and the light source holder positioned thereon; The light source holder and the vacuum tip are fitted into the cutout portion, so that the light source holder is provided on the outer peripheral surface of the vacuum tip. 13) In the above embodiment, The light source holder may be provided with a valve at the opening. 14) In the above embodiment, an attachment side electrode provided near the tip of the attachment; a tip-side electrode for receiving power from the attachment-side electrode provided at an opening of the light source holder; the conductor comprises a first conductor that electrically connects a power source and the attachment side electrode, and a second conductor that electrically connects the light source and the tip side electrode; A part of the conducting wire that is inserted into and removed from the light source holder is the second conducting wire; and The present invention is characterized in that, when the connection between the vacuum tip and the attachment is completed, the tip side electrode and the attachment side electrode are positioned so as to be in contact with and conductive with each other. 15) In the above embodiment, The light source and the conductive wire are disposed on a plate-shaped sheet. The light source holder is characterized in that it is in the shape of a bag into which the sheet can be inserted. 16) In the above embodiment, The light source and the conductive wire are disposed on a plate-shaped sheet. the sheet has a plug connected to the conductor disposed thereon via a cable; The vacuum hose includes a plug receptacle into which the plug can be inserted; and The light source holder is characterized in that it is in the shape of a bag into which the sheet can be inserted. 17) In the above embodiment, The light source and the conductive wire are disposed on a plate-shaped sheet. the sheet has a plug connected to the conductor disposed thereon via a cable; The attachment includes a plug receptacle into which the plug can be inserted; and The light source holder is characterized in that it is in the shape of a bag into which the sheet can be inserted. Effect of the Invention

[0008] Due to the structure of the intraoral suction device according to the present invention, it is possible to wash only the vacuum tip while removing the light source unit including the light source and a part of the conductor connected to the light source. [Brief description of the drawings]

[0009] [Figure 1] (a) is a schematic cross-sectional view of the oral suction device of the present invention. (b) is a schematic cross-sectional view of each component separated. (c) is a schematic cross-sectional view of the oral suction device of a modified example. (d) is a schematic cross-sectional view of each component separated. [Diagram 2] (a) shows a schematic cross-sectional view of an intraoral suction device in a modified example. (b) shows a schematic cross-sectional view of each component separated. (c) shows a schematic cross-sectional view of an intraoral suction device in another modified example. (d) shows a schematic cross-sectional view of each component separated. [Diagram 3] (a) shows a schematic cross-sectional view of an intraoral suction device in a modified example. (b) shows a schematic cross-sectional view of each component separated. (c) shows a schematic cross-sectional view of an intraoral suction device in another modified example. (d) shows a schematic cross-sectional view of each component separated. [Figure 4] 1A is a schematic cross-sectional view of an intra-oral suction device according to a modified example, and FIG. 1B is a schematic cross-sectional view of each component separated from the other components. [Diagram 5] 1A is a schematic cross-sectional view of an intraoral suction device having a contact structure between a hose-side electrode and a tip-side electrode, FIG. 1B is a schematic cross-sectional view of a state in which the vacuum tip is removed from the vacuum hose, and FIG. 1C is a schematic cross-sectional view of a state in which the light source unit is removed from the vacuum tip. [Figure 6] 5(a) and (b) are schematic cross-sectional views enlarging a region I in FIG. 5(b), (a) and (b) are schematic cross-sectional views each showing another example of wiring. [Figure 7] 1 is a schematic cross-sectional view of an intraoral suction device including a contact structure between a hose side electrode and a tip side electrode, as well as a control unit and a battery. [Figure 8](a) is a schematic cross-sectional view of an oral suction device including a valve. (b) is a schematic front view showing an exemplary shape of the valve. (c) is a schematic view showing how a lead wire passes through the valve shown in (b). (d) is a schematic front view showing another exemplary shape of the valve. (e) is a schematic view showing how a lead wire passes through the valve shown in (d). [Figure 9] (a) is a schematic perspective view showing the state where a holder clip is used to attach the light source holder to the vacuum chip. (b) is a schematic cross-sectional view seen from the tip of the vacuum chip before the holder clip is attached. (c) is a schematic perspective view showing the state where a different holder clip is used. (d) and (e) are schematic cross-sectional views seen from the same perspective as (b) showing the process of attaching the holder clip. [Figure 10] (a) is a schematic cross-sectional view of an oral suction device in another embodiment having an attachment. (b) is a schematic cross-sectional view of each component separated. (c) is a schematic cross-sectional view of an oral suction device in a modified example. (d) is a schematic cross-sectional view of each component separated. [Figure 11] (a) shows a schematic cross-sectional view of an intraoral suction device in a modified example. (b) shows a schematic cross-sectional view of each component separated. (c) shows a schematic cross-sectional view of an intraoral suction device in another modified example. (d) shows a schematic cross-sectional view of each component separated. [Figure 12] (a) shows a schematic cross-sectional view of an intraoral suction device in a modified example. (b) shows a schematic cross-sectional view of each component separated. (c) shows a schematic cross-sectional view of an intraoral suction device in another modified example. (d) shows a schematic cross-sectional view of each component separated. [Figure 13] 1A is a schematic cross-sectional view of an intra-oral suction device according to a modified example, and FIG. 1B is a schematic cross-sectional view of each component separated from the other components. [Figure 14](a) is a schematic cross-sectional view of an intraoral suction device having a contact structure between an attachment side electrode and a tip side electrode, (b) is a schematic cross-sectional view of a state in which the attachment is removed from the vacuum hose and the vacuum tip is removed from the attachment, and (c) is a schematic cross-sectional view of a state in which the light source unit is removed from the vacuum tip. [Figure 15] 1A is a schematic cross-sectional view of an intra-oral suction device having a light source holder into which a sheet is inserted, and FIG. 1B is a schematic perspective view showing the sheet inserted into the light source holder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, each embodiment of the present invention will be described with reference to the drawings showing the examples. In the drawings, the same or similar components in each embodiment are basically given the same reference numerals. Also, the description of the same or similar components already described in another embodiment may be omitted.

[0011] (1) First embodiment The first embodiment will be described with reference to FIGS. 1 is a schematic cross-sectional view of an intra-oral suction device. This cross section is a longitudinal cross section that appears when a vacuum tip 2 and a vacuum hose 1 are cut approximately in half along their longitudinal direction (the same applies to the following similar figures). Hereinafter, the vicinity of the end of the vacuum tip 2 connected to the vacuum hose 1 will be referred to as the "base end," and the vicinity of the opposite end will be referred to as the "tip." The vicinity of the end of the vacuum hose 1 on the suction source side will be referred to as the "base end," and the vicinity of the end on the connection side with the vacuum tip 2 will be referred to as the "tip" (the same applies to the following embodiments).

[0012] The basic configuration of the oral suction device of the present invention will be described with reference to Fig. 1. The oral suction device has a vacuum tip 2 having a hard tubular body and a flexible vacuum hose 1. The base end of the vacuum hose 1 is connected to a suction source (not shown) such as an exhaust pump. The connected vacuum tip 2 and the inside of the tubular body of the vacuum hose 1 become a passage for the suction object. The material of the vacuum tip 2 is generally a plastic such as polypropylene, or a metal. The material of the vacuum hose 1 is generally a soft polyvinyl chloride, silicone rubber, polyurethane resin, or the like.

[0013] As shown in Fig. 1(a), the vacuum hose 1 and the vacuum tip 2 are connected by inserting the base end of the vacuum tip 2 into the tip of the vacuum hose 1. The overlap of a predetermined length (e.g., 1 to 2 cm) between the vacuum tip 2 and the vacuum hose 1 caused by the insertion is called a joint part J. As shown in Fig. 1(a), the end point of insertion of the vacuum tip 2 into the vacuum hose 1 may be a stopper 13, which is a protrusion provided on the inner surface of the vacuum hose 1. The inner diameter and the outer diameter of the vacuum tip 2 may be designed so that the insertion stops at a certain length. It is desirable that when the vacuum tip 2 and the vacuum hose 1 are connected, they are not easily separated due to the frictional force of their contact surfaces. This insertion allows communication between their internal spaces. The tip of the vacuum tip 2 has a suction port 41. The operator holds the vicinity of the base end of the vacuum tip 2 with his / her hand and moves the vacuum tip 2 inside the oral cavity to perform suction.

[0014] In the example of FIG. 1, the tubular body of the vacuum tip 2 is partially curved from the base end to the tip. The approximate length of the vacuum tip 2 from the base end to the tip is, for example, 10 to 15 cm. The vacuum tip 2 may be a tubular body that is entirely curved, a straight tubular body, or a tubular body that is bent at 90° or an obtuse angle midway. The cross-sectional shape perpendicular to the longitudinal direction of the tubular body is usually approximately circular or approximately elliptical.

[0015] In the illustrated example, the suction port 41 has a shape in which the tip of the tube is cut out obliquely with respect to the longitudinal direction. The vacuum tip 2 is usually used with the side facing the suction port 41 facing the object to be sucked. Therefore, the convex curved surface on the side facing the suction port 41 is the working surface 45, and the concave curved surface on the opposite side is the non-working surface 46. As another example, a rubber tip may be attached to the suction port 41. In the following, the upward direction from the viewpoint of FIG. 1(a) will be referred to as the working surface side, and the downward direction will be referred to as the non-working surface side.

[0016] The intraoral suction device of the present invention is used by installing a light source 7 for intraoral illumination in the vacuum tip 2. In particular, it is preferable that the periphery of the working surface 45 and / or the suction port 41 is illuminated. However, the illumination range is not limited thereto, and the device may be configured so that the entire periphery of the vacuum tip 2, including the non-working surface side, is illuminated. The light source 7 is mainly a light emitting diode (LED). It is preferable to use a light source such as an LED, which generates little heat from the element itself. As shown in FIG. 1(a), the light source 7 is connected by a power supply conductor 8 which is electrically connected to a power source PS. One or more light sources 7 are connected to one conductor. It is preferable that the number or intensity of the light sources 7 is sufficient to illuminate the work in the oral cavity. Even when one conductor wire 8 is illustrated in each drawing, it actually includes a positive conductor wire and a negative conductor wire.

[0017] The oral suction device of the present invention has a light source holder 4 for mounting a light source 7. The light source holder 4 is shaped like a bag extending along the longitudinal direction of the vacuum tip 2 and opening at one end on the base end side of the vacuum tip 2. This opening is called the opening 5. The light source holder 4 must be made of a light-transmitting material at least in the vicinity of the light source 7, but the entire light source holder 4 may be made of a light-transmitting material. If the vacuum tip 2 is made of a light-transmitting material, it is preferable that the light source holder 4 is made of the same material as the vacuum tip 2. The light source holder 4 is made of a plastic material such as polypropylene.

[0018] When the light source holder 4 is provided inside the tube wall 42, it is integrally formed when the vacuum tip 2 is produced, for example, during processing and molding. When the light source holder 4 is provided on the outer surface 43 of the tube or on the inner surface 44 of the tube, the light source holder 4 may be formed integrally when the vacuum tip 2 is manufactured, or may be manufactured separately and then installed on the vacuum tip 2.

[0019] The location where the light source holder 4 is installed may be on the outer surface 43 of the tube of the vacuum tip 2 as shown in Figure 1, on the inner surface 44 of the tube as shown in Figures 2(a) and (b), inside the tube wall 42 as shown in Figures 3(a) and (b), or a combination of these as shown in Figures 2(c) and (d), 3(c) and (d), and 4. At least one light source holder 4 is preferably installed on the tube outer surface 43, particularly on the working surface side.

[0020] The basic configuration of the intraoral suction device common to the present embodiment has been described above, and will be described in further detail below with reference to Figs. 1 to 4.

[0021] In FIG. 1( a ), the light source holder 4 is provided at one location on the working surface 45 on the outer surface 43 of the tube of the vacuum tip 2 , but it may be provided at another location on the outer surface 43 of the tube.

[0022] 1(a) is achieved by inserting the light source 7 and a portion of the conducting wire 8 connected to the light source 7 through the opening 5 of the light source holder 4. Hereinafter, the light source 7 and the portion of the conducting wire 8 connected to the light source 7 that are inserted into the light source holder 4 will be referred to as a light source portion 9. 1(b), the light source unit 9 can be removed by pulling out the light source unit 9 from the light source holder 4. In this manner, the light source holder 4 is structured so that the light source unit 9 can be inserted and removed from the opening 5.

[0023] FIG. 1(c) shows a modified example in which two light source holders 4 are provided on the vacuum tip 2. The light source holder 4 installed on the work surface 45 has a branch portion 6 that extends away from the tubular outer surface 43 of the vacuum tip 2 near the opening 5. The provision of the branch portion 6 allows the light source holder 4 to extend up to the joint portion J. In the absence of the branch portion 6, if the light source holder 4 extends up to the joint portion J, when connecting the vacuum hose 1 and the vacuum tip 2, interference will occur between the vacuum hose 1 and the light source holder 4 before the vacuum tip 2 is inserted up to the stopper 13.

[0024] 1(c), a space is formed within the pipe wall 15 of the vacuum hose 1, which is a path for the conductive wire 8. Holes 17 and 18 are formed through the outer circumferential surface of the vacuum hose 1 into the space within the pipe wall 15. The vacuum hose 1 also has a hose branch portion 16 which is a cylindrical protrusion. The interior of the hose branch portion 16 communicates with the space within the pipe wall 15.

[0025] The conductor 8 coming out from the opening 5 of the light source holder 4 provided on the work surface 45 passes through a hole 17, through the space inside the tube wall 15 of the tube body of the vacuum hose 1, through the hose branching section 16, and is connected to the power source PS.

[0026] The conductor 8 coming out from the opening 5 of the light source holder 4 provided on the non-work surface 46 passes through the hole 18, passes longitudinally through the space inside the tube wall 15 of the tube of the vacuum hose 1, further passes inside the tube wall 15 in the circumferential direction of the tube, passes through the hose branching part 16, and is connected to the power source PS. The conductors 8 provided in the two light source holders 4 may be connected to each other at a point where they overlap in their paths.

[0027] In the modified example of this embodiment, too, the light source unit 9 can be removed from the vacuum tip 2 by removing the vacuum tip 2 from the vacuum hose 1, as shown in FIG. 1(d).

[0028] 2(a) shows a modified example in which two light source holders 4 are provided on the tubular inner surface 44 of the vacuum tip 2. The light source holder 4 on the working surface side extends from the tip side to the base end side on the tubular inner surface 44, penetrates the tubular wall to the tubular outer surface 43, and has a branched part 6 that extends away from the tubular outer surface 43, and the tip of the branched part 6 forms an opening 5. As shown in FIG. 2(a), the location where the light source holder 4 is installed does not necessarily have to be on the working surface side or the non-working surface side, but may be on the inner surface 44 of the tube body.

[0029] The light source holder 4 on the non-work surface side extends from the tip side to the base side on the inner surface 44 of the tube, passes through the tube wall, and passes through the outer surface 43 of the tube, and has an opening 5 on the outer surface 43 of the tube.

[0030] In this modified example, two light sources 7 are installed in each light source holder 4. The conductor 8 connecting the light source 7 to the power source PS is wired through the inside of the pipe wall 15 of the vacuum hose 1 and the inside of the hose branching portion 16, similar to FIG. 1(c), and therefore a description thereof will be omitted. By removing the vacuum tip 2 from the vacuum hose 1, the light source unit 9 can also be removed from the vacuum tip 2 (FIG. 2(b)).

[0031] When the light source holder 4 is provided as in this modified example, not only is the material of the light source holder 4 translucent at least in the vicinity of the light source 7, but the material of the vacuum tip 2 must also be translucent at least in the vicinity of the light source 7. As a result, the light from the light source 7 can irradiate the periphery of the suction target.

[0032] Fig. 2(c) shows a modified example in which light source holders 4 are provided on the tube outer surface 43 and the tube inner surface 44. The light source holder 4 on the tube outer surface 43 has a branching portion 6, similar to Fig. 1(c). The light source holder 4 on the tube inner surface 44 has a branching portion 6, similar to Fig. 2(a). This modified example shows an example in which five light sources are installed in the light source holder 4 on the tube outer surface 43. The light source unit 9 can be removed by pulling it out from the light source holder 4 (FIG. 2(d)).

[0033] 3(a) shows a modified example in which two light source holders 4 are installed inside the tube wall. An example is shown in which one light source 7 is provided in each light source holder 4. The light source holder 4 on the working surface side extends from the distal end side to the proximal end side of the vacuum tip 2, penetrates the tube wall, and has a branched portion 6 extending away from the tube outer surface 43, and has an opening 5 at the distal end of the branched portion 6.

[0034] The light source holder 4 on the non-work surface side extends from the distal end side of the vacuum tip 2 to the proximal end side, passes through the tube wall, and passes through the tube outer surface 43 , and has an opening 5 on the tube outer surface 43 . As shown in FIG. 3(a), the light source holder 4 need not be installed only on the working surface side or the non-working surface side, but may be installed inside the tube wall . The light source unit 9 can be removed by pulling it out from the light source holder 4 (FIG. 3(b)).

[0035] Fig. 3(c) shows a modified example in which a light source holder 4 is provided on the tube outer surface 43 and inside the tube wall 42. The light source holder 4 on the tube outer surface 43 has a branch portion 6 similar to Fig. 2(c), and an example in which two light sources are installed there is shown.

[0036] The light source holder 4 in the tube wall 42 extends from the tip side and has an opening 5 on the edge surface of the base end of the vacuum tip. An example is shown in which one light source is installed there. The conductor 8 electrically connecting the light source 7 and the power source PS exits from the light source holder 4 through the opening 5, passes through the inside of the tube of the vacuum hose 1, passes through a hole 19 that penetrates from inside the tube of the vacuum hose to the outside of the tube, exits the tube, and is connected to the power source.

[0037] By removing the vacuum tip 2 from the vacuum hose 1, the light source unit 9 can be removed from the vacuum tip 2 (FIG. 3(d)).

[0038] In Figure 4(a), a light source holder 4 is provided on the outer surface 43 of the tube, as in Figure 1(a), a light source holder 4 is provided on the inner surface 42 of the tube, as in the light source holder 4 installed on the non-working surface side shown in Figure 2(a), and a light source holder 4 is provided inside the tube wall 42, as in the light source holder 4 installed on the non-working surface side shown in Figure 3(a). An example is shown in which four light sources 7 are installed in the light source holder 4 installed on the outer surface 43 of the tube, and two light sources 7 are installed in each of the light source holder 4 installed inside the tube wall 42 and the light source holder 4 installed on the inner surface 44 of the tube.

[0039] A conductor 8 connecting a light source 7 installed in a light source holder 4 installed on the tube wall inner surface 44 to a power source PS exits from an opening 5, passes through a hole 18, passes through a space inside a tube wall 15 of the tube of the vacuum hose 1, passes further inside the tube wall 15 in the circumferential direction of the tube, passes through a hose branching part 16, and is connected to a power source PS. The conductors 8 installed in different light source holders 4 may be connected to each other at overlapping points in the path.

[0040] The conductor wires coming out of the respective openings 5 ​​of the light source holder 4 installed on the outer surface 43 of the tube and inside the tube wall 42 pass through the hole 17, through the space inside the tube wall 15 of the tube of the vacuum hose 1, through the hose branching part 16, and are connected to the power source PS. The conductor wires 8 may be connected at the overlapping points in the route. By removing the vacuum tip 2 from the vacuum hose 1, the light source unit 9 can be removed from the vacuum tip 2 (FIG. 4(b)).

[0041] In this embodiment, a conductor 8 provided on a light source holder 4 installed on the vacuum chip 2 and electrically connected to the light source 7, and a conductor 8 provided on the vacuum hose 1 side and electrically connected to the power source PS may be configured to be contactable or separable via their respective electrodes (Figure 5).

[0042] As shown in Fig. 5(b), the intraoral suction device includes a tip-side electrode 24 at the opening 5 of the light source holder 4, and a hose-side electrode 14 near the tip of the vacuum hose 1. These electrodes 14, 24 come into contact with each other when the vacuum tip 2 is connected to the vacuum hose 1 (Fig. 5(a)). The conductor 8 electrically connecting the power source PS and the hose side electrode 14 is referred to as the first conductor 10, and the conductor electrically connecting the light source 7 and the tip side electrode 24 is referred to as the second conductor 20. The part of the conductor 8 inserted into the light source holder 4 is the entire second conductor 20, and in the example of FIG. In order to prevent the tip side electrode 24 from interfering with the tip of the vacuum hose 1 when connecting the vacuum tip 2 and the vacuum hose 1, a branch portion 6 is provided as in FIG. 1(c). In order to prevent the hose electrode 14 from being exposed, it is preferable that the hose electrode 14 be enclosed by the connection box 51 to an extent that does not prevent contact with the tip electrode 24.

[0043] 6(a) and (b) are schematic enlarged cross-sectional views of region I in FIG. 5(b). Hose side electrode 14 consisting of positive and negative electrodes is provided on plate 53, and plate 53 is connected to connection box 51 via elastic body 52. ​​It is desirable that plate 53 moves only left and right from the viewpoint of FIG. 6(a), and movement in other directions is prevented by connection box 51. The sizes of connection box 51 and plate 53 are designed accordingly. It is desirable to design the material and shape of plate 53 and connection box 51 so that plate 53 can move smoothly left and right. Plate 53 is also made of a non-conductive material.

[0044] Similarly, the chip side electrodes 24 are composed of a positive electrode and a negative electrode, and are disposed on the aperture plate 23. The aperture plate 23 has a shape that allows it to cover or fit into the aperture 5. The aperture plate 23 is fixed to the aperture 5, and it is preferable that the chip side electrodes 24 disposed on the aperture plate 23 are also fixed. The aperture plate 23 may have a thread or a groove, and the aperture 5 may have a groove or a thread, and the aperture plate 23 may be installed in the aperture 5 by a screw type. In any case, the aperture plate 23 must be removable from the aperture 5 as shown in FIG. 5(c). By this removal, the light source unit 9 can be taken out from the light source holder 4.

[0045] The opening plate 23 is made of a non-conductive material, similar to the plate 53. When the vacuum hose 1 and the vacuum tip 2 are connected, the electrodes 14, 24 are positioned so that the positive poles of the tip side electrode 24 and the hose side electrode 14 are in contact with each other and the negative poles of the tip side electrode 24 and the hose side electrode 14 are in contact with each other and are electrically connected to each other. This contact and electrical connection allows the tip side electrode 24, and therefore the light source 7, to receive power from the hose side electrode 14 that is electrically connected to the power source PS. The vicinity of the tip of the vacuum hose 1 where the hose side electrode 14 is installed is the position where this contact and electrical continuity are achieved.

[0046] Elastic body 52 is provided so that contact between hose side electrode 14 and tip side electrode 24 can be maintained even if there is some misalignment in the connection between vacuum hose 1 and vacuum tip 2. Therefore, the length of elastic body 52 is designed so that it shrinks by a certain length when vacuum hose 1 and vacuum tip 2 are connected. Elastic body 52 biases plate 53 toward the tip of vacuum hose 1, thereby maintaining contact between hose side electrode 14 and tip side electrode 24.

[0047] Examples of wiring for the hose electrode 14 are shown in Figures 6(a) and (b). In Figure 6(a), the hose electrode 14 is fixed to the plate 53 in a manner that penetrates the plate 53, and the surface of the hose electrode 14 exposed on the elastic body 52 side of the plate 53 is connected to the first conducting wire 10. The first conducting wire 10 passes through the space formed in the wall of the vacuum hose 1, passes through the hose branching part 16 as shown in Figure 5(b), and is wired to the power source PS.

[0048] In Fig. 6(b), the lead wire 8 and the hose electrode 14 are connected via an elastic body 52, which is a conductor. In this case, contact between the elastic body 52 and the first lead wire 10 can be avoided. Also, separate elastic bodies 52 are connected to the positive and negative sides of the hose electrode 14. These elastic bodies 52 are arranged so as not to come into contact with each other. The first conducting wire 10 connected at one end of the elastic body opposite to the plate 53 passes through the space within the wall of the connection box 51, passes into the space within the pipe wall 15 of the vacuum hose 1, and is wired to the power source PS. It may also be designed to pass only within the pipe wall 15 of the vacuum hose 1 without passing through the wall of the connection box 51.

[0049] The wiring other than that around the hose side electrode 14 and the tip side electrode 24 is the same as that described above, so a description thereof will be omitted.

[0050] In this embodiment, as shown in Fig. 7, the oral suction device according to the present invention may have a control unit 62 including a switch for turning on and off the power of the light source 7 on the outer surface of the suction hose 1. The control unit 62 is housed in a housing 61 so as not to be exposed to the surrounding environment. The control unit 62 may also have a function of adjusting the intensity of the illumination. An operator switches the power on and off by operating the switch operation unit 63. The switch operation unit 63 can be of various types, such as a button type or a lever type.

[0051] The oral suction device may have a control unit 62, a housing 61, and an operation unit 63 without having the above-mentioned hose side electrode 14, tip side electrode 24, connection box 51, etc. In either configuration, the conductive wire 8 and the light source 7 connected thereto are detachable from the vacuum tip 2.

[0052] In this embodiment, the power source may be a battery or a rechargeable battery 64. If the battery or the rechargeable battery 64 is small, it may be housed in a housing 61 as shown in Fig. 7. The battery or the rechargeable battery 64 may be built into the control unit. In the case of a rechargeable battery, a socket 65 for inserting a charging cable may be provided on, for example, the surface of the housing 61 on the base end side of the vacuum hose 1. By inserting a connector 71 such as a USB into the socket 65, the rechargeable battery can be charged from the power source PS.

[0053] In this embodiment, a valve 81 can be provided at the opening 5 of the light source holder 4 so that saliva or the like does not enter the opening 5 of the light source holder 4 while the intra-oral suction device is in use. For example, as shown in Fig. 8(a), a valve 81 can be provided in the opening 5, and the shape of the valve 81 can be made substantially circular by arranging multiple fan-shaped portions on the circumference, as shown in Fig. 8(b). In this case, the conducting wire 8 can pass through the center of the valve, as shown in Fig. 8(c).

[0054] In another modified example, most of the opening 5 can be covered with a single valve 81 (FIG. 8(d)), with the conductor wire 8 passing through a cut-out portion (FIG. 8(e)).

[0055] The valve 81 itself is preferably made of a soft material in consideration of the insertion and removal of the light source 7 and the conductive wire 8. It may be made of the same material as the vacuum tip 2, and when the light source holder 4 is manufactured integrally with the vacuum tip 2, the valve 81 may also be manufactured integrally with the vacuum tip 2.

[0056] 9, an example of how to attach the light source holder 4 to the tube outer surface 43 when the light source holder 4 is not integrally formed with the vacuum tip 2 will be described. Typically, holder clips 82, 87 that clamp the vacuum tip 2 are used as shown in FIG.

[0057] FIG. 9(b) is a schematic cross-sectional view of the vacuum tip 2 as viewed from the tip end side. 9(b), the holder clip 82 has a C-shape that elastically fits onto the outer peripheral surface of the vacuum tip 2, and is joined to the light source holder 4 at a joining surface 86, forming a part of the light source holder 4. The holder clip 82 that fits onto the vacuum tip 2 is elastically deformed and fitted into the vacuum tip 2, whereby the light source holder 4 is attached to the vacuum tip 2. The attached state is shown in FIG. 9(a). The inner surface of the holder clip 82 that fits with the vacuum tip 2 has a curvature larger than that of the outer surface of the vacuum tip 2, so that the holder clip 82 does not easily come off the vacuum tip 2.

[0058] 9(d) and (e) differs from the holder clip 82 in Fig. 9(b) in that it does not have a joining surface 86 with the light source holder 4, and has a structure in which the light source holder 4 and the vacuum tip 2 are clamped together by the holder clip 87. For that reason, the holder clip 87 has a roughly C-shape that wraps around the vacuum tip 2 and the light source holder 4 positioned thereon. For example, as shown in Fig. 9(d), first the light source holder 4 is fitted inside the holder clip 87, and then as shown in Fig. 9(e), the vacuum tip 2 is fitted inside the holder clip 87, whereby the light source holder 4 is fixed onto the outer circumferential surface of the vacuum tip 2. Fig. 9(c) shows the state in which the light source holder 4 is attached to the vacuum tip 2.

[0059] Similar to the holder clip 82 in FIG. 9(b), the shape of the holder clip 87 in FIG. 9(d) is designed so that the holder clip 87 does not easily come off the vacuum tip 2 due to the elastic force that tends to close in the direction of contact with the vacuum tip 2.

[0060] The attachment of the light source holder 4 to the vacuum chip 2 is not limited to the holder clip 87. For example, the holder clip 87 in FIG. 9(c) may be replaced with an adhesive holder tape 85 to seal the vacuum chip 2 and light source holder 4 together. When the light source holder 4 is not formed integrally with the vacuum chip 2, the light source holder 4 may be fixed to the inner surface 44 of the tube using a holder tape 85 when attaching the light source holder 4 to the inner surface 44 of the tube.

[0061] (2) Second embodiment The second embodiment will be described with reference to Figures 10 to 14. The main difference between the first and second embodiments is that the second embodiment has an attachment 3.

[0062] The basic structure of the attachment 3 will be described with reference to FIG. The attachment 3 has a tube with a base end connectable to the tip of the vacuum hose 1 and a tip connectable to the base end of the vacuum tip 2. The tube is preferably substantially cylindrical. The material of the tube may be the same as that of the vacuum tip 2, for example, plastic or metal. Regarding the attachment 3, the vicinity of the end on the side connected to the tip of the vacuum hose 1 is referred to as the "base end", and the vicinity of the opposite end on the side connected to the base end of the vacuum tip 2 is referred to as the "tip".

[0063] 10(a), the vacuum tip 2 may be designed to be inserted into the attachment 3 until it hits a stopper 13, which is a protrusion provided inside the tube of the attachment 3. Alternatively, the outer diameter of the vacuum tip 2 and the inner diameter of the attachment 3 may be adjusted so that the vacuum tip 2 is not inserted into the attachment 3 beyond a desired depth, and is designed so that it does not easily come out due to friction at that position.

[0064] 10(a), the connection between the vacuum hose 1 and the attachment 3 may be designed so that a step 33 provided inside the tube of the attachment 3 stops the attachment 3 from being inserted into the vacuum hose 1. As with the connection between the vacuum tip 2 and the attachment 3, the insertion depth may be designed by adjusting the outer diameter of the attachment 3 and the inner diameter of the vacuum hose 1. The oral suction device thus connected sucks the object to be suctioned from the suction port 41, and the inside of the tube of the vacuum tip 2, the attachment 3, and the vacuum hose 1 serves as a passage for the object to be suctioned.

[0065] The advantage of the oral suction device being equipped with an attachment 3 is that when using an existing vacuum hose 1, the vacuum tip 2 of the present invention can be attached by using the attachment 3 that matches the diameter of the existing vacuum hose 1. It is possible to provide the connection box 51 including the above-mentioned hose side electrode 14 and elastic body 52, the control unit 62 including a switch, or a rechargeable battery on this attachment (FIG. 14(a)). In this case, it becomes unnecessary to attach these components to the existing vacuum hose 1, and the advantage of having the attachment 3 becomes even greater.

[0066] Since each of the modified examples shown in Figs. 10 to 13 corresponds to Figs. 1 to 4 in the first embodiment not having the attachment 3, a common description will be omitted, except for the presence or absence of the attachment 3 and the surrounding wiring.

[0067] Figure 10(a) shows an example in which a light source holder 4 is provided on the outer surface 43 of the tube of the vacuum tip 8. Since there is no difference other than that the oral suction device has an attachment 3, descriptions of the light source 7, conductive wire 8, light source unit 9, light source holder 4, power source PS, etc. will be omitted. Even when the oral suction device has the attachment 3, the vacuum hose 1, the attachment 3, the vacuum tip 2, and the light source unit 9 are each separable (FIG. 10(b)).

[0068] FIG. 10(c) shows an example in which the light source holder 4 is installed on a working surface 45 and a non-working surface 46 on the outer tubular surface 43 of the vacuum tip 2, similar to FIG. 1(c). The conductor 8 exits the opening 5 of the light source holder 4 on the work surface 45, passes through the space inside the tube wall 35 of the attachment 3, and is connected to the power source PS. Although not shown, the attachment 3 may be provided with a structure similar to the hose branch 16 provided on the vacuum hose 1 in Fig. 1(c).

[0069] The conductor 8 exiting the opening 5 of the light source holder 4 on the non-working surface 46 passes through the space inside the tube wall 35 of the tube of the attachment 3, then passes inside the tube wall 35 along the circumferential direction of the tube, enters the path of the conductor 8 installed in the light source holder 4 on the working surface 45, and is connected to the power source PS. The conductor 8 on the working surface 45 and the conductor 8 on the non-working surface 46 may be connected where their paths overlap.

[0070] 10(d), the intraoral suction device is capable of separating the vacuum hose 1, the attachment 3, the vacuum tip 2, the conductor 8 connected to the power source PS, and the light source 7 connected to the conductor 8. When cleaning only the vacuum tip 2, it is only necessary to separate the attachment 3 and the light source unit 9 from the vacuum tip 2, and therefore it is not necessary to separate all the components. Other explanations will be omitted since they overlap with the explanation using FIG.

[0071] FIG. 11(a) shows an example in which the light source holders 4 are installed on the working surface side and the non-working surface side of the inner tube surface 44 of the vacuum tip 2, similar to FIG. 2(a). The wiring of the conductor 8 exiting the opening 5 of the light source holder 4 on the work surface side and the conductor 8 exiting the opening 5 of the light source holder 4 on the non-work surface side is the same as in FIG. 10(c), and is therefore omitted.

[0072] As shown in FIG. 11(b), in the intraoral suction device, the attachment 3 and the light source unit 9 can be separated from the vacuum tip 2. Other explanations will be omitted since they overlap with the explanation using FIG.

[0073] FIG. 12(c) shows an example in which the light source holder 4 is disposed on the working surface 45 on the outer tube surface 43 of the vacuum tip 2 and on the non-working surface side on the inner tube surface 44, similar to FIG. 2(c). As shown in FIG. 12(d), in the intraoral suction device, the vacuum hose 1, the attachment 3, the vacuum tip 2, the lead wire 8 connected to the power source PS, and the light source 7 connected to the lead wire 8 can be separated from each other. Other explanations will be omitted since they overlap with the explanation using FIG. 2(c).

[0074] FIG. 12(a) shows an example in which the light source holders 4 are installed on the working surface side and the non-working surface side of the inside 42 of the tube wall of the vacuum tip 2, similar to FIG. 3(a). As shown in FIG. 12(b), in the intraoral suction device, the vacuum hose 1, the attachment 3, the vacuum tip 2, the lead wire 8 connected to the power source PS, and the light source 7 connected to the lead wire 8 can be separated from each other. Other explanations will be omitted since they overlap with the explanation using FIG.

[0075] FIG. 12(c) shows an example in which the light source holder 4 is installed on the working surface 45 on the tube outer surface 43 of the vacuum tip 2 and on the non-working surface side of the tube wall inner surface 42, similar to FIG. 3(c). In this modified example, the conductor 8 exits the opening 5 of the light source holder 4 inside the tube wall 42, passes through a hole 83 that penetrates from the inside of the tube of the attachment 3 to the outside of the tube, exits to the outside of the tube of the attachment 3, and is connected to a power source.

[0076] As shown in FIG. 12(d), in the intraoral suction device, the vacuum hose 1, the attachment 3, the vacuum tip 2, the lead wire 8 connected to the power source PS, and the light source 7 connected to the lead wire 8 can be separated from each other. Other explanations will be omitted since they overlap with the explanation using FIG.

[0077] FIG. 13(a) shows an example in which light source holders 4 are installed inside the tube wall 42 of the vacuum tip 2, on the outer surface 43 of the tube, and on the inner surface 44 of the tube, similarly to FIG. 4(a). As shown in FIG. 13( b ), in the intraoral suction device, the attachment 3 and the light source unit 9 can be separated from the vacuum tip 2 . Other explanations will be omitted since they overlap with the explanation using FIG.

[0078] In this embodiment, as in the first embodiment, the oral suction device may be configured such that a conductor 8 electrically connected to a light source 7 provided in a light source holder 4 installed in a vacuum tip 2 and a conductor 8 electrically connected to a power source PS can be brought into contact with or separated from each other via their respective electrodes (Figure 14). The difference from the first embodiment is that components related to the electrodes are provided on the attachment 3, not on the vacuum hose 1. Therefore, the components referred to as the hose side electrode 14 in the first embodiment will be referred to as the attachment side electrode 34.

[0079] In addition, the oral suction device in this embodiment may have a control unit 62 including a switch for turning on and off the power of the light source 7, a housing 61 for accommodating it, and a switch operation unit 63, as in the first embodiment. Descriptions of these components are common to the first embodiment and will be omitted. The oral suction device in this embodiment may have the control unit 62, the housing 61, and the switch operation unit 63 without having the attachment side electrode 14, the tip side electrode 24, the connection box 51, etc., as in the first embodiment. The difference from the first embodiment is that these components are provided on the outer surface of the attachment 3 rather than on the vacuum hose 1 (FIG. 14). In either configuration, the conductive wire 8 and the light source 7 connected thereto are detachable from the vacuum tip 2 (FIG. 14(c)).

[0080] Furthermore, like the first embodiment, the power source in this embodiment may be a battery or a rechargeable battery 64, and may further include a socket 65 (FIG. 14(a)). Descriptions of these components are also omitted since they are common to the first embodiment.

[0081] The fact that a valve 81 can be installed at the opening 5 of the light source holder 4 and that if the light source holder 4 is not formed integrally with the vacuum tip 2, the light source holder 4 can be attached to the outer surface 43 of the tube of the vacuum tip 2 using holder clips 82, 87 or holder tape 85 are common to the first embodiment, and therefore will not be described here.

[0082] As shown in FIG. 15, the intraoral suction device in the first and second embodiments may further include a thin plate-like sheet 70 on which a light source 7 and a conductive wire 8 are arranged. A schematic perspective view of the sheet 70 is shown in Fig. 15(b), and an intraoral suction device equipped with a light source holder 4 into which the sheet 70 is inserted is shown in Fig. 15(a). Fig. 15(a) is a longitudinal section that appears when the vacuum tip 2 is cut approximately in half along the longitudinal direction, as in Fig. 1(a). Fig. 15 shows an example in which the light source holder 4 is provided on the inner surface 44 of the tube of the vacuum tip 2, but it can also be provided on the outer surface 43 of the tube, inside the tube wall 42.

[0083] The internal shape of the light source holder 4 is preferably formed to be one size larger than the external shape of the plate-like sheet 70. In other words, the internal shape of the light source holder 4 is also preferably flat. The material and shape of the light source holder 4 and the sheet 70 are preferably designed so that the sheet 70 will not slip out of the light source holder 4 unless a force is applied to pull it out. Furthermore, it is desirable for the sheet 70 to have a strength suitable for attachment to and detachment from the light source holder 4 through the opening 5. The material of the sheet 70 is preferably resin.

[0084] A light source 7 and a conductor 8 are disposed on the sheet 70. In Fig. 15(b), the conductor 8 embedded inside the sheet 70 is connected inside the sheet to a terminal for supplying power provided on the light source 7 disposed on the surface of the sheet 70. The conductor 8 may be disposed on the surface of the sheet 70 without being embedded in the sheet 70.

[0085] The conductor 8 arranged on the sheet 70 exits the sheet 70, passes through the inside of the cable 69, and is connected to the plug 66. The power source PS (not shown) and the light source 7 are electrically connected by inserting the plug 66 into a plug socket that is provided near the base end of the vacuum hose 1 and into which a plug can be inserted. When the conductor 8 exits from inside the sheet 70 to the cable 69, the vicinity of the contact point between one end of the cable 69 and the sheet 70 may be covered with, for example, a resin cover 68 so that the conductor 8 is not exposed.

[0086] The number of light sources 7 provided on the sheet 70 is one or more, but it is preferable that the number is such that the amount of light necessary to illuminate the oral cavity is ensured. A plurality of sheets 70 each having a different number of light sources 7 provided thereon may be prepared, and the sheet 70 to be used may be selected each time it is used. When the sheet 70 is inserted into the light source holder 4, the light source 7 arranged on the sheet 70 can be inserted so that it faces either the outside or inside of the tube of the vacuum tip 2. However, if a user of the oral suction device, such as a dentist, feels that the light is too bright, it is preferable to insert the sheet 70 so that the light source 7 arranged on the sheet 70 faces the inside of the tube. By using a light-transmitting material for the light source holder 4 and the vacuum tip 2, the light from the light source 7 can illuminate the work target.

[0087] The oral suction device can be assembled by connecting the vacuum tip 2 to the vacuum hose 1, inserting the plug 66 into the plug receptacle 67, and inserting the sheet 70 into the light source holder 4 in any order, connecting the various components.

[0088] In the example of FIG. 15, by rotating an operating portion 63 of the switch, the power supplied to the light source 7 can be adjusted.

[0089] FIG. 15 shows an example in which the control unit 62, the switch operation unit 63, and the plug receiver 67 are provided on the vacuum hose 1, but the oral suction device may also have an attachment 3 on which these components are provided. In this case, the vacuum hose 1 can be connected to the attachment 3, the attachment 3 can be connected to the vacuum tip 2, the plug 66 can be inserted into the plug receptacle 67, and the sheet 70 can be inserted into the light source holder 4 in any order, and the various components can be connected to assemble the oral suction device.

[0090] The present invention has been described above with reference to the drawings showing the embodiments of the present invention, but a combination of one or more configurations described in one embodiment with one or more configurations described in another embodiment is also included in one of the embodiments of the present invention as long as it is in line with the gist of the present invention. Furthermore, various further modifications are possible as long as they are in line with the gist of the present invention, and these are also included in the embodiments of the present invention. [Explanation of symbols]

[0091] 1 Vacuum Hose 2 Vacuum Tip 3 Attachment 4 Light source holder 5 Opening 6 Branching section 7 light source 8 conductor 9 Light source section 10 1st conductor 11 Hose base end 12 Hose tip 13 Stopper 14 Hose side electrode 15 Inside the pipe wall 16 Hose branch 17 holes 18 holes 19 holes 20 Second conductor 21 Tip base end 22 Tip end 23 Aperture plate 24 Chip side electrode 31 Attachment base end 32 Attachment tip 33 Steps 34 Attachment side electrode 35 Inside the pipe wall 36 Attachment branch 41 Suction port 42 Inside the pipe wall 43 Outer surface of tube 44 Inner surface of tube 45 Work Surface 46 Non-work surface 51 Connection Box 52 Elastic Body 53 Plate 61 Case 62 Control section 63 Operation section 64 Batteries or rechargeable batteries 65 Sockets 66 Plug 67 Plug holder 68 Cover 69 Cable 70 sheets 71 Connector 81 Valve 82 Holder clip 83 holes 84 holes 85 Holder Tape 86 Joint surface 87 Holder Clip J Joint PS power supply

Claims

1. An oral suction device, comprising: a vacuum hose connected to a suction source; a vacuum tip including a tube having a base end connectable to the tip of the vacuum hose and a tip that is a suction port; a bag-shaped light source holder provided on an outer surface of the tube of the vacuum tip, on an inner surface of the tube, within a tube wall, or a combination thereof, extending along a longitudinal direction of the vacuum tip and having an opening on a base end side of the vacuum tip; A light source for intraoral illumination; a power supply conductor connected to the light source; The tip of the light source holder does not protrude from the suction port of the vacuum tip; and An intraoral suction device, characterized in that a portion of the conductor, including at least the range that can be inserted into the oral cavity, and the light source are housed in the light source holder so that they can be inserted and removed from the opening.

2. The intra-oral suction device according to claim 1 , wherein one or more light source holders are provided on an outer surface of a tube of the vacuum tip.

3. The oral suction device according to claim 2, wherein at least one of the light source holders of the vacuum tip includes a branch portion extending away from an outer surface of the tube of the vacuum tip near the opening.

4. The intra-oral suction device according to claim 2 , wherein the light source holder is provided with a C-shaped holder clip that fits onto an outer peripheral surface of the vacuum tip.

5. 3. The intraoral suction device according to claim 2, further comprising a substantially C-shaped holder clip that wraps around the vacuum tip and the light source holder positioned thereon.

6. 4. The intraoral suction device according to claim 1, wherein a valve is provided at the opening of the light source holder.

7. a hose side electrode provided near the tip of the vacuum hose; a tip-side electrode provided at an opening of the light source holder for receiving power from the hose-side electrode; the conductor comprises a first conductor that electrically connects a power source and the hose side electrode, and a second conductor that electrically connects the light source and the tip side electrode; A part of the conducting wire that is inserted into and removed from the light source holder is the second conducting wire; and An oral suction device as described in any one of claims 1 to 3, characterized in that when the connection between the vacuum tip and the vacuum hose is completed, the tip side electrode and the hose side electrode are positioned so as to be in contact with and conductive with each other.

8. The oral suction device according to claim 1, further comprising an attachment having a tube body having a base end connectable to a tip end of the vacuum hose and a tip end connectable to a base end of the vacuum tip.

9. The intra-oral suction device according to claim 8, wherein one or more of the light source holders are provided on an outer surface of a tube of the vacuum tip.

10. The oral suction device according to claim 9, wherein at least one of the light source holders of the vacuum tip includes a branch portion extending away from an outer surface of the tube of the vacuum tip near the opening.

11. The oral suction device according to claim 9, characterized in that the light source holder has a C-shaped holder clip that fits onto the outer peripheral surface of the vacuum tip, and the light source holder is positioned on the outer peripheral surface of the vacuum tip by fitting the holder clip into the vacuum tip.

12. a holder clip having an inner frame with a partially cut-out annular shape that fits with an outer frame formed by the vacuum tip and the light source holder positioned thereon; The oral suction device according to claim 9, wherein the light source holder and the vacuum tip are fitted into the cutout portion, so that the light source holder is provided on the outer peripheral surface of the vacuum tip.

13. The oral suction device according to any one of claims 8 to 10, characterized in that a valve is provided at the opening of the light source holder.

14. an attachment side electrode provided near the tip of the attachment; a tip-side electrode for receiving power from the attachment-side electrode provided at an opening of the light source holder; the conductor comprises a first conductor that electrically connects a power source and the attachment side electrode, and a second conductor that electrically connects the light source and the tip side electrode; A part of the conducting wire that is inserted into and removed from the light source holder is the second conducting wire; and An oral suction device as described in any one of claims 8 to 10, characterized in that when the connection between the vacuum tip and the attachment is completed, the tip side electrode and the attachment side electrode are positioned so as to be in contact with and conductive with each other.

15. The light source and the conductive wire are disposed on a plate-shaped sheet. The oral suction device according to claim 1 or 8, wherein the light source holder is in the form of a bag into which the sheet can be inserted.

16. The light source and the conductive wire are disposed on a plate-shaped sheet. the sheet has a plug connected to the conductor disposed thereon via a cable; The vacuum hose includes a plug receptacle into which the plug can be inserted; and The oral suction device according to claim 1 , wherein the light source holder is in the form of a bag into which the sheet can be inserted.

17. The light source and the conductive wire are disposed on a plate-shaped sheet. the sheet has a plug connected to the conductor disposed thereon via a cable; The attachment includes a plug receptacle into which the plug can be inserted; and The oral suction device according to claim 8, wherein the light source holder is in the form of a bag into which the sheet can be inserted.

Images