MXPA00009000A - Illuminated suction tool with a disposable tip - Google Patents

Abstract

A dental suction tool has a disposable sanitary plastic suction tip to prevent cross contamination from one patient to the next. Additionally, a light source such as a fiberoptic bundle with or without a ring light is provided on the interior of the dental suction tool to provide light to the end of the plastic disposable suction tip. Illumination from the ring light or directly from the fiberoptic bundle is transmitted along the length of the suction tip and is emitted from the end thereof to illuminate the oral cavity during dental procedures.

Description

SUCTION TOOL ILLUMINATED WITH A DISPOSABLE TIP BACKGROUND OF THE INVENTION This invention relates to a suction tool and more particularly to a suction tool with a disposable tip that also provides illumination to the oral cavity of the patient. The present invention was developed to add additional function to the widely accepted evacuation systems that are currently used for suction or aspiration. The concept of suction or aspiration in the dental office has its roots in the old cuspidor. The spittoon was later replaced by the gravity flow spittoon, then by the backwashing cup and finally by the vacuum tip / vacuum point / suction tip which are interchangeable terms that vary by the user and based on the size of the opening in the device. These dental suction instruments are used by dentists to remove fluids and other foreign objects that accumulate in the patient's oral cavity during typical dental procedures. The conventional dental suction tool comprises a suction tip connected by a long pipe to a vacuum source. The dental suction tool can be configured to hang at the corner of the patient's mouth or manipulated by the dentist to suction the oral cavity. With the increasing incidence of transferable diseases such as hepatitis and acquired immunodeficiency syndrome, extreme care must be taken to avoid the transmission of germs (viral or bacteria) from one patient to the next. With conventional suction devices, it is necessary to sterilize at least the tip of the suction device after each use in a patient. During the use of the suction device, water, saliva and blood from the patient's mouth are extracted to the tip for removal from the oral cavity. If cleaning and sterilization are not performed, it would be very easy to transfer infection from one patient to the next. Also, latent bacterial growth can be promoted both at the tip and all the lines of the vacuum suction system due to the existence of this potentially contaminating material. To further mitigate this possibility of cross-contamination from one patient to the next, routine sterilization of the suction tip is convenient. It is also convenient to provide illumination to the oral cavity to assist the dentist in performing the necessary dental procedures. Most dental operations have an aerial task lighting system with reflective surfaces that help to concentrate the light in the patient's mouth. However, the dentist often gets in the way of light, which minimizes the effectiveness of aerial lighting. One of the main problems and frustrations in dental practice is the constant need for the dentist to spend time adjusting the direction of this aerial lighting. Various dental tools have been provided with a light source to assist the dentist during various dental activities. For example, a typical dental drill includes a bundle of optical fibers that transmit light from a light source to the end of the dental drill which allows the dentist to provide light directly to the area where the drilling occurs.

Representative of this technology are the descriptions shown in the U.S. patent. No. 4,507,085 (Mosinann) and the US patent. No. 5,088,924 (Woodward). Hand-held triple-syringe tip instruments with a light source have also been provided to illuminate the area in which air and / or water will be sprayed. Representative of these devices is the description of the US patent. No. 4,619,612 (Weber) showing a bundle of optical fibers placed at the center of a triple triple syringe tip structure. A light bulb acts as the light source and is placed inside the hand instrument. The tip of the syringe used in the description of the Weber patent, is a non-disposable metal syringe tip that must be autoclaved before use with the next patient. Previous attempts to use light in conjunction with a suction tip were made by passing a bundle of optical fibers tangent and parallel to the suction tip. The optical conduit for the fiber optic bundle was fixed to the suction tip with a series of clamps over the length of the suction tip. However, the results of this configuration were less than desirable for several reasons. The bundles of optical fibers that were connected to the suction tips still need to be sterilized before being used in the next patient. Optical fiber bundles are not particularly suited to heat sterilization and the expense and inconvenience of frequent replacement of these bundles of optical fibers can be prohibitive. It is also necessary to clean the areas in the suction tip in which the clamps are connected and this can be quite problematic and time consuming. Another problem with this fiber optic bundle configuration is that the light is positioned off-center from the suction tip, so that the light is transmitted to the patient's oral cavity still produces shadows from the suction tip itself which can be more harmful than good. The novel concept developed here is to transmit light to the operating field by transmitting a light source through a transparent plastic material that simultaneously serves as the suction tip of the dental suction device. The fact that the light is focused on the suction tip minimizes any shadows in the oral cavity and reduces the need for the dentist to resort to his task task lighting, which constantly requires adjustment. It is proposed that the use of the present invention in conjunction with the light source that is coupled to the air-water syringe tip provide sufficient light in the patient's oral cavity to avoid the need for aerial illumination of tasks and eliminates the need for time spent constantly adjusting this task lighting. It is an object of the present invention to provide a disposable suction tip as part of the dental suction tool, so that each patient can receive a clean and uncontaminated suction tip.

A feature of the present invention is that the suction tip portion of a dental suction tool is made of a disposable plastic material. Another advantage of the present invention is that cross-contamination from the patient due to inadequately cleaned or sterilized suction tips is eliminated because each patient is provided with a new, clean and non-contaminated suction tip that is only used in that patient. A further objective of the present invention is to provide means for suitably aligning the suction tip in the dental suction tool. A further feature of the present invention is to provide at one end of the suction tip, at least one bevelled section on an exterior surface of the suction tip, such that the suction tip can be properly aligned in the suction tool dental. Alternately, one end of the suction tip is provided with at least one recess that is adapted to cooperate with a keying element in the dental suction tool to properly align the suction tip in the dental suction tool.

A further advantage of the present invention is that a dentist is able to properly align the suction tip in the dental suction tool. A further objective of the present invention is to provide a useful light source that can be transmitted to the oral cavity of the patient each time the dentist is using a dental suction tool. A further feature of the present invention is to provide a light source at one end of the suction tip inside the adapter that holds the suction tip in the dental tool. The light from the light source is directed at one end of the suction tip and transports over its length. At the opposite end of the suction tip, light radiates from the suction tip and can be used to illuminate the patient's oral cavity. A further advantage of the present invention is that a dentist is able to illuminate the oral cavity using the same instrument he is using to suck liquids and other foreign matter from the patient's oral cavity. Any dental procedures that require the use of the dental suction tool will be carried out more easily, safely and effectively, because the dentist will be able to see exactly where he is working in the oral cavity.

Other objects, features and advantages of the present invention will be apparent from the consideration of the following detailed description. COMPENDIUM OF THE INVENTION A dental suction tool has a disposable sanitary plastic suction tip, to avoid cross contamination from one patient to the next. The suction tip is formed as a generally cylindrical hollow pipe and made of disposable plastic material. One end of the suction tip has at least one beveled section on an outer wall surface of the suction tip, such that the suction tip can be properly aligned in the dental suction tool. Alternately, one end of the suction tip has at least one recess that is adapted to cooperate with a keying element in the dental suction tool, to properly align the suction tip in the dental suction tool. Additionally, a light source such as an optical fiber bundle with or without a ring lamp is provided inside the dental suction tool to provide light to the end of the disposable plastic suction tip. Lighting from the ring lamp or directly from the fiber optic bundle, is transmitted over the length of the suction tip and emits from its end to illuminate the oral cavity during dental procedures. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows an exploded isometric view of a dental suction tool of the present invention. Figure 2 is a cross-sectional view of one embodiment of the dental suction tool of the present invention with the suction valve in the open position. Figure 3 is a cross-sectional view of the dental suction tool of the present invention with the suction valve in the closed position. Figure 4 shows an exploded isometric view of a modified dental suction tool of the present invention. Figure 5 shows an isometric view of a modified suction tip of the present invention. Figure 6 is a cross-sectional view of the modified dental suction tool illustrated in Figure 4, with the suction valve in the open position. Figure 7 shows an end view of another modified suction tip of the present invention.

Figure 8 is a cross-sectional view of another modified dental suction tool with the suction valve in the open position. Figure 9 is an exploded isometric view of a modified suction tip and its corresponding key element of the present invention. Figure 10 shows an end view of yet another modified suction tip of the present invention. Figure 11 is a cross-sectional view of another additional modified dental suction tool, with the suction valve in the open position. Figure 12 is an exploded isometric view of another modified dental suction tool of the present invention. Figure 13 is an end view of the valve body of the modified dental suction tool, which is taken on line 13-13 of Figure 12. Figure 14 is an end view of the valve body of the tool. modified dental suction, which is taken on line 14-14 of Figure 12. Figure 15 is a cross-sectional view of the modified dental suction tool of Figure 12, before the suction tip is mounted on the hub of the tip.

Figure 16 is a cross-sectional view of the modified dental suction tool of the Figure 12, with the suction tip mounted on the tip bushing. Figure 17 is an isometric view of the suction tip employed in the modified dental suction tool of Figure 12. Figure 18 is an isometric view of a modified suction tip, employed in the modified dental suction tool of the Figure 12. Figure 19 is a cross-sectional view of another modified suction tip in the modified dental suction tool of Figure 12. Figure 20 is a cross-sectional view of the modified suction tip of Figure 19, used in the modified dental suction tool of Figure 12. DETAILED DESCRIPTION OF THE PREFERRED MODALITIES The dental suction tool of the present invention is generally illustrated at 10 in Figure 1. Again the dental suction 10 comprises a valve cap 20, a valve body 40, a lever 50 and a lighting structure or lamp 70. A suction tip 80 is mounted on the valve body 40 and to The dental suction tool 10 is connected to a source of vacuum and electric power (not shown).

The valve cover 20 comprises an externally threaded cap section 22, preferably configured as a hollow cylinder. On each of the diametrically opposite sides of the threaded cap section 22, a cylinder opening 24 is provided with sufficient diameter to receive the rotating cylinder 60 through when the dental suction tool 10 is assembled. Toward the back of the threaded cap section 22, a lid top 26 and a lid extension 30 are provided. The lid extension 30 is provided with an annular groove 32, for receiving the pipe connector base 38. The pipe connector base 38 is connected to the pipe (not shown) that runs from the power supply and vacuum suction supply typically that is provided at a remote site from the dentist's chair. The valve body 40 includes a generally hollow threaded body section 42, with a set of internal threads 46 which cooperate and receive the threaded cap section 22 of the valve cap 20 when the valve cap 20 is assembled with the body of the valve body. valve 40. The valve body 40 has a cylindrical opening 44 on its side and another cylindrical opening (not shown) on the opposite side of the threaded body section 42. These cylindrical openings receive the rotary cylinder 60 when the dental suction tool 10 is assembled. The rotary cylinder 60 is a generally cylindrical body, with a diametrically passing cylinder passage 62. Each end of the rotating cylinder 60 has a clamping recess, configured to correspond to the clamping pins on the lever 50. One rotating cylinder end 60 has an annular groove 66 which receives an O-ring 67 and the other end of the rotary cylinder 60 has a similar annular groove 64 which receives an O-ring 65. The lever 50 may be of any convenient configuration such as the generally U-shaped configuration shown. The lever 50 has a first side arm 51 with a first clamping connector 53 mounted which fits in the first associated clamping recess (not shown) in the rotating cylinder 60 and a second side arm 52 with a second clamping connector (not shown) ), which adjusts in the second associated fastening recess 63 in the rotary cylinder 60. Each of the first lateral arm 51 and the second lateral arm 52 are connected by the transverse piece 56, such that each arm moves with the other for rotating the rotary cylinder 60 before movement of the lever 50. The dental suction tool 10 also includes a lighting structure 70 comprising an illumination ring 72 at one end of a fiber optic bundle 74 extending the length of the dental suction tool 10. Adjacent, but slightly separated from the illumination ring 72 is an alignment cylinder 78 that helps in properly aligning the illumination structure. Ion 70 inside the dental suction tool 10, when all the elements of the dental suction tool 10 are assembled together in their working state. The valve body 40 includes a suction tip passage 48 that opens at the end of the conical end section 43 into which the disposable suction tip 80 is inserted. The suction tip 80 may have a number of configurations as shown in FIG. will explain later here. Figure 2 shows in cross section the dental suction tool 10 in an assembled condition, with the lever 50 adjusted such that the rotating cylinder 60 is open to allow the vacuum source to provide suction to the suction tip 80. valve body 40 has a lighting ring cavity 45 which receives the illumination ring 72 and the alignment cylinder 78. When the suction tip 80 is inserted in the passage of the suction tip 48 of the valve body 40, the end of the suction tip 80 buttresses the illumination ring 72. The suction tip 80 is securely held within the valve body 40 by one or more O-rings 49 that are provided over the length of the passage of the suction tip 48. By simply removing the suction tip 40, a new suction tip 80 can be inserted into the valve body 40 for each new patient, thereby maintaining a Clean and sanitary suction tool and the elimination of any possible cross contamination between patients. The activation of the power supply to the illumination structure 70 transmits light through the fiber optic bundle 74 and towards the illumination ring 72. The light that is emitted from the illumination ring 72 is transmitted over the length of the illumination tip 72. suction 80 and out of its end in the patient's oral cavity. In the embodiment of the invention shown in Figure 2, the suction tip 80 is a two-layer extrusion. The outer layer is an optical fiber tubing 66, which will transmit light from the illumination ring 72 over the length of the optical fiber tubing 86 and out of its end to the patient's mouth. The outer layer is a layer of plastic 84 that can be transparent or opaque, as desired. In a preferred embodiment, the plastic layer 84 should be a transparent light-transmitting plastic material, which can also transmit light from the illumination ring 72 over the length of the plastic layer 84. When the lever 50 is rotated approximately 90 ° as illustrated in Figure 3, the rotary cylinder 60 also rotates approximately 90 °. This disengages the cylinder passage 62 from the alignment cylinder passage 79 and suction will not be provided to the suction tip 80. However, the light of the illumination ring 72 will continue to be transmitted over the length of the suction tip 80 and toward the oral cavity of the patient, provided that power is supplied to the fiber optic bundle 74. This allows the dental suction tool 10 to function as a light source, even when suction is not required for a particular dental procedure. Figures 4 to 6 show a modification of the dental suction tool 10 of the present invention. Similar reference numbers are used to identify the elements of Figures 1 to 3 which are the same in Figures 4 to 6. In Figures 4 to 6, a tip insert block 90 is added to the rear pocket 45 in front of the ring of illumination 72. As illustrated in Figures 5 and 6, the tip insertion block 90 has bevelled top and bottom portions in its internal bore corresponding to the beveled section 82 on diametrically opposite sides in JThe outer wall surface of the suction tip 80. In the preferred embodiment of the present invention as illustrated in Figure 5, the beveled sections 82 are formed in the outer wall surface of the suction tip 80. As the suction tip 80 is inserted into the the valve body 40, the bevelled sections 82 align with the bevelled top and bottom portions within the tip insertion block 90 and effect proper alignment of the tip of the tip. suction 80 in the valve body 40. Figures 7, 8 and 9 show another modification of the dental suction tool 10 of the present invention. Similar reference numbers are used to identify the elements of Figures 1 to 3 which are the same as those of Figures 7 and 8. In Figures 7, 8 and 9, a key 96 is added to the interior of the valve body 40 in front of the lighting ring 72. ' This key 96 will act as an alignment device when the suction tip 180 is inserted into the valve body 40. As illustrated in Figures 7 and 9, the suction tip 180 has a plurality of recesses 182 that are placed around the the circumference of the suction tip 180 on the outer wall surface at equally spaced locations. In the preferred embodiment of the present invention as illustrated in Figures 7 and 9, the recesses 182 are formed in the outer wall surface of the suction tip 180. When the suction tip 180 is inserted into the valve body 40. , one of the recesses 182 aligns with the key 96 and performs proper alignment of the suction tip 180 on the valve body 40. Since the suction tip 180 has a slight elbow, by providing a plurality of recesses 182 about The circumference of the suction tip, a dentist can orient the suction tip 180 in a number of directions to allow the suction tip 180 to be used in any way desired by the dentist. Figure 8 also shows another embodiment of the suction tip 180 which removes the optical fiber layer inside the suction tip. In this embodiment, a transparent plastic material that is a light transmitter is used for the suction tip 180. When the lighting ring 72 is activated, the light exiting there will travel through the body of the suction tip 180 and It will be issued from its endpoint. This embodiment simplifies the manufacture of the suction tip 180 and reduces its cost.

Figures 10 and 11 show yet another modification of the dental suction tool 10 of the present invention. Similar reference numerals are used to identify the elements of Figures 1 to 3 which are the same in Figure 9 and Figure 10. The embodiment of the invention illustrated in Figures 9 and 10 also utilizes key 96 which is added to the rear cavity 45 facing the illumination ring 72. This key 96 will act as an alignment device when the suction tip 280 is inserted into the valve body 40. The suction tip 280 also removes the optical fiber layer inside of the suction tip. In this embodiment, the suction tip 280 is constituted by two layers extracted from plastic material, an outer layer 284 of opaque material and an inner layer 286 of transparent plastic material which is a light transmitter. The suction tip 280 has a plurality of recesses 282 which are placed around the circumference of the suction tip 280 on its outer wall surface, at equally spaced locations. In the preferred embodiment of the present invention as illustrated in Figures 9 and 10, the recesses 282 are formed in the outer wall surface of the suction tip 280. When the illumination ring 72 is activated, the light that is emitted from there it will travel through the inner layer 286 of the suction tip 280 and be emitted from its end. The outer layer 284 which is opaque, will prevent light from being lost through the sides of the suction tip 280, such that the intensity of light emitted from the end of the suction tip 280 increases. Alternatively, instead of using an opaque outer layer that has been co-extruded, it is also within the scope of the invention to apply a coating of opaque material to the outer surface of the inner layer, to minimize the loss of light through the the outer surface of the suction tip -280. Another embodiment of the dental suction tool of the present invention is generally illustrated at 300 in Figure 12. The dental suction tool 300 comprises a valve body 320, a tip holder 340, a rotating cylinder 350 and a plurality of beams of optical fibers 312. A suction tip 380 is mounted on the tip holder 340 and the entire dental suction tool 300 is connected to a source of vacuum and electric power (not shown). The valve body 320 comprises a main section 321 including a suction line connector 316 integrally therein formed. The main section 321 and the suction line connector 316 have a pass-through passage 318 so that the vacuum source can be provided to the suction tip 380. At the top of the main section 321 is a plurality of optical fiber bundle channels 326 on which the optical fiber bundles 312 and an upper valve body cover 322 are seated, are placed above by any convenient fastening means, such as the inter-locking shoulder structure shown in FIG. Figure 15. The bottom of the main section 321 also has a plurality of channels for optical fiber bundles (not shown), but similar to the channels 326 (which also support the optical fiber bundles 312 and are covered by the optical fiber cover. bottom valve body 324 which is also held in place by any convenient attachment means, such as the interlocking shoulder structure shown in Fig. 15. The bundles of optical fibers 312 extend through the main section 321 and terminate inside the main section 321 at the point where the main section 321 joins the main section extension 329. This allows the light that is emitted from the end of the bundles of optical fibers 312 inter-act with the end of the suction tip 380 as will be further explained here. As an alternative to the use of optical fiber bundles 312, any convenient light transmitting conduits can be employed; as many as a light-transmitting conduit can be employed as long as the intensity of the light transmitted through the light-transmitting conduit to the suction tip and from there to the oral cavity of the patient is sufficient to provide a desired amount of illumination. On each of the diametrically opposite sides of the valve body 320, an opening 327 is provided with sufficient diameter to receive the rotating cylinder 350 through when the dental suction tool 300 is assembled. The rotating cylinder 350 comprises a cylinder body 354 having a through passage 356 and the rotating cylinder 350 held in place within the valve body 320 by the O-ring 355 and the O-ring 357. The rotating cylinder 350 also has a cover of cylinder 352 that can be held by the user to perform rotation of rotating cylinder 350 to open and close passage 356 relative to passage 318, to control the suction that is provided to suction tip 380. At one end of main section 321 , there is a main section extension 329 comprising a hollow cylindrical body. This main section extension 329 encloses a bushing extension 330 which adjusts the pressure in a recess in the main section 321. The bushing extension 330 '*. Has a tip bushing 332. The tip bushing 332 preferably has a shape circumferential tapered to receive one end of the suction tip 380 as will be explained here. The bushing extension 330 also has an internal passage 331 aligned with the passage 318. At the approximate junction of the main section extension 330 with the main section 321, a slot 334 receiving an O-ring 349 is provided. tip holder 340 which is preferably a conical member. The wide end of the tip holder 340 has an inner circumferential shoulder 342 which cooperates with the O-ring 349 to hold the tip holder 340 in place, when assembled on the valve body 320. The tip holder 340 includes a passage of suction tip 348 that opens at a tip support end 340 and where the disposable suction tip 380 is inserted. Details of one of the preferred embodiments of the suction tip 380 are illustrated in Figure 17. The tip Suction 380 is a generally cylindrical hollow member having at one end a beveled section 382. At the opposite end of suction tip 380, a plurality of fingers 384 are provided. In a preferred embodiment of the present invention, four slots 388 they are illustrated equally spaced around the circumference of the suction tip 380. While the maximum depth of the slots 388 should not exceed the axial support length of - tip 340 (in order to maintain the vacuum within the suction tip 380), the minimum depth of slot 388 shall not be less than 3.175 mm (.125 inch). The slots 388 create a plurality of fingers 384 at the end of the suction tip 380. The end of each finger 384 is provided with an inner shoulder 386 of appropriate size to inter-act with the tip bushing 332 in the bushing extension. 330. Figures 15 and 16 show the assembly of the dental suction tool 300. The o-ring 349 is mounted in the slot 334. The tip holder 340 is placed over the bushing extension 330 and is engaged by quick actuation in place. by the shoulder 342 which interacts with the O-ring 349. The end of the suction tip 380 having the fingers 334 is inserted into the tip holder 340 and pushed there until the fingers 384 extend and engage on the hub tip 332 in bushing extension 330. Shoulders 386 inside fingers 384 inter-act with tip bushing 332, to prevent suction tip 380 from simply falling off or detaching from tip holder 340, but the suction point ón 380 is flexible enough to allow the suction tip 380 to be manually removed and replaced with a new suction tip 380, when it's requested. When the suction tip 380 is inserted into the passage of the suction tip 348 of the tip holder 340 and pushes into the tip bushing 332, the end of the suction tip 380 is positioned adjacent to the ends of the fiber bundles 312, so that the light emitted from the ends of the optical fiber bundles 312 can be transmitted in the suction tip 380. Simply by removing the suction tip 380, a new suction tip 380 can be inserted into the 340 tip holder for each new patient, thus maintaining a clean and sanitary suction tool and eliminating any cross-contamination between patients. The activation of the power supply transmits light through the optical fiber bundles 312. The light emitted from the optical fiber bundles 312 is transmitted over the length of the suction tip 380 and out from its end towards the oral cavity of the patient. Other modifications can be made to this modality. As illustrated in Figure 18, the suction tip 380 can be made with a single slot 388 instead of the four slots 388 shown in Figure 17. In this single slot mode 388, there is still sufficient flexibility of plastic material, of Such that the open end of the suction tip 380 can expand around the tip bushing 332 and be held in place. Whenever at least one slot 388 is employed, the suction tip 380 is functional. More than one slot can also be used. Figures 19 and 20 show another modification of the suction tip 380 of the present invention. In this embodiment, the shoulder 386 is omitted and an internal slot 396 is used in its place. When the suction tip 380 is pushed over the tip bushing 332, the tip bushing 332 fits into the inner slot 392 to hold the suction tip 380 in place. One or more slots 388 are required, such as the two diametrically opposed slots 388 shown in Figures 19 and 20. Additionally, a vacuum relief opening 394 can be provided at the closed end of the slot 388. Also, to provide pressure Additional clamping on the clamping tip 380, an o-ring 396 may be included in the tip holder 340. In the preferred embodiment of this modification, a transparent plastic material which is a light transmitter is used for the suction tip 380. Suitable materials that can be used are acrylics, cellulosics and other light-conducting plastics.

While the invention has been illustrated with respect to several specific embodiments thereof, these modalities should be considered as illustrative rather than limiting. Various modifications and additions can be made and will be apparent to those with skill in the specialty. Accordingly, the invention will not be limited by the foregoing description but rather will be defined only by the following claims.

Claims (21)

1. A dental suction tool characterized in that it comprises: a) a valve body having a passage for transmitting suction to a suction tip connected to the valve body, the valve body includes a rotating cylinder, to selectively provide suction to the valve body with a suction source it is connected to the valve body; b) the elaborated suction tip of the material capable of transmitting light over the length of the suction tip; c) a valve cover attached to the valve body for securing the suction tip in the valve body; d) at least one light transmitting duct placed inside the valve cover adjacent the end of the suction tip, such that when the light transmitting duct is connected to a light source and the light source is active, the light is transmitted on the light transmitting duct and towards the suction tip and subsequently emits from one end of the suction tip.

The dental suction tool according to claim 1, characterized in that the suction tip comprises a disposable material of transparent plastic.

The dental suction tool according to claim 1, characterized in that: a) the valve body includes a suction tip bushing that is provided with a generally tapered bushing extension sized to receive a first end of the tip of suction; and b) the suction tip comprises a generally hollow cylindrical hollow pipe, with its first end being provided with at least one axial groove, such that the suction tip can be pushed over the nose bushing to hold the suction tip on the valve body.

The dental suction tool according to claim 3, characterized in that an inner shoulder is provided at the first end of the hollow tubing, such that the inner shoulder can couple the bushing extension to hold the suction tip on The, valve body.

The dental suction tool according to claim 1, characterized in that: a) the valve body includes a tip bushing that is provided with a generally tapered bushing extension sized to receive a first end of the suction tip; and b) the suction tip comprises a generally hollow cylindrical hollow pipe, with the first end being provided with a plurality of axial slots forming a plurality of flexible fingers at the first end of the suction tip, such that the tip of suction can be pushed over the tip bushing to hold the suction tip on the valve body.

The dental suction tool according to claim 5, characterized in that an inner shoulder is provided on each finger at the first end of the hollow tubing, such that the inner shoulder can couple the bushing extension to hold the tip of suction on the valve body.

The dental suction tool according to claim 1, characterized in that: a) the valve body includes a tip bushing that is provided with a generally tapered bushing extension sized to receive a first end of the suction tip; and b) the suction tip comprises a generally hollow cylindrical hollow pipe, an inner groove that is provided adjacent the first end of the suction tip, such that when the suction tip is pushed over the tip bushing, the inner groove interacts with the bushing extension to hold the suction tip over the valve body.

8. A suction tip for use in a dental suction tool, comprising a material capable of transmitting light over its length and formed as a generally cylindrical hollow tubing, a first end of the suction tool having at least one axial groove of such that the suction tip can be held in the dental suction tool.

9. The dental suction tool according to claim 8, characterized in that an inner shoulder is provided at the first end of the hollow pipe, such that the inner shoulder can engage a cooperating structure in the valve body to hold the suction tip on the valve body.

10. A suction tip for use in a dental suction tool comprising a material capable of transmitting light over its length and formed as a generally cylindrical hollow tubing, a first end of the suction tool having a plurality of axial slots that form a plurality of flexible fingers such that the suction tip can be held in the dental suction tool.

The suction tip according to claim 10, characterized in that a lower shoulder is provided on each finger at the first end of the hollow pipe, such that the inner shoulder can couple a cooperating structure in the valve body to hold the suction tip on the valve body.

12. A dental suction tip for use in a dental suction tool, characterized in that it comprises a material capable of transmitting light over its length and formed as a generally cylindrical hollow tubing, an inner groove that is provided adjacent a first end of the tooth tip. suction, so that the suction tip can be held in the dental suction tool.

13. A suction tip for use in a dental suction tool, characterized in that it comprises a plastic material formed as a generally cylindrical hollow tube, one end of the suction tip has at least one beveled section formed in an outer wall surface of the suction tip, so that the suction tip can be properly aligned in the dental suction tool.

14. A suction tip for use in a dental suction tool, characterized in that it comprises a plastic material formed as a generally cylindrical hollow tube, one end of the suction tip has at least one recess formed in an outer wall surface of the suction tip, so that the suction tip can be properly aligned in the dental suction tool.

15. The suction tip according to claim 14, characterized in that a plurality of recesses is provided circumferentially around the perimeter of the suction tip.

The suction tip according to claim 14, characterized in that the plurality of recesses are provided circumferentially and equally spaced around the perimeter of the suction tip.

The suction tip according to claim 14, characterized in that the suction tip comprises a single layer of light-transmitting material.

18. A suction tip for use in a dental suction tool, characterized in that it comprises a plastic material formed as a generally cylindrical hollow tube, an end in the suction tip has at least one recess formed in an outer wall surface of the Suction tip, such that the suction tip can be properly aligned in the dental suction tool, the suction tip further comprises an inner layer of light transmitting material and an outer layer of opaque material.

19. The suction tip according to claim 18, characterized in that the outer layer is a coating applied to the inner layer.

20. A sectional tip for use in a dental suction tool, characterized in that it comprises a plastic material formed as a generally cylindrical hollow tube, one end of the suction tip has at least one beveled section formed on an outer surface of the suction tip , so that the suction tip can be properly aligned in the dental suction tool, the suction tip further comprises an inner layer of light transmitting material and an outer layer of opaque material.

21. The suction tip according to claim 20, characterized in that the outer layer is a coating applied to the inner layer.