TWM612216U - Dental handpiece structure - Google Patents

Abstract

The new model is a dental handpiece structure, which includes a head. One end of the head has a thin tip and a water outlet hole. One end of the thin tip is formed with a tip. The head has a light guide strip through which the light guide strip penetrates. Set two opposite ends of the head, the light guide groove is recessed at one end of the head, the light guide groove is connected with the light guide hole, the position of the water outlet is adjacent to the position of the light guide hole, and the imaginary center extension line position of the light guide strip Align at the tip position; a handle with a light source slot and a light-emitting element at one end, the light-emitting element is arranged in the light source groove, the head is assembled on the handle, the light-emitting element is aligned with the light guide groove; the light projected by the light-emitting element passes through The light guide strip is focused on the tip of the thin tip to provide better surgical visibility for the key parts of the operation. When water is sprayed from the water outlet, it can also prevent the generation of water mist from affecting the visual effect.

Description

Dental handpiece structure

This model relates to a dental appliance, especially a mobile phone with LED lighting equipment used by a dentist.

Among the dental handpieces in the prior art, there is a luminous ultrasonic handpiece and a holding color code system such as the US Invention Bulletin No. US 7150629B2. Among them, one end of the ultrasonic handpiece is equipped with a dental cleaning insert, and the ultrasonic handpiece is located in the dental cleaning device. The peripheral ring of the insert is provided with a coaxial light source. A water flow channel is formed on the dentifrice insert. One end of the water flow channel penetrates through one end of the dentifrice insert to form a water outlet. When the doctor is performing subgingival treatment, the water outlet can be used Spray water towards the affected part of the oral cavity and illuminate the patient's oral cavity with light emitted by a luminous source.

However, in the dental handpiece of the prior art, since the light source is a ring-shaped light source, the generated light is easily scattered toward the surroundings, and this scattering phenomenon can cause discomfort to the eyes of doctors and patients who perform treatment actions at close range; in addition, For example, when the dental handpiece is spraying water, the water mist and wide-range lighting can easily blur the vision, which will affect the accuracy of the doctor’s operation. The handle and the connecting seat are both cylindrical. The design of the dental handpiece makes it easy for the doctor to slip during the process of holding the dental handpiece and rotating between the fingers. Therefore, the overall structure of the dental handpiece in the prior art has the aforementioned problems and shortcomings, which need to be addressed. Improved.

In view of the shortcomings and deficiencies of the prior art, the present invention provides a dental handpiece structure, which achieves the purpose of illuminating the light projected by the light-emitting element arranged in the handle by arranging a light guide groove and a light guide strip on the head. .

In order to achieve the above-mentioned creative purpose, the technical means adopted by the present model is to design a dental handpiece structure, which includes: A head, which includes a connecting seat, a connecting rod, a thin tip and a light guide strip. The connecting seat is formed with a light guide hole and a light guide groove. The light guide hole penetrates two opposite sides of the connecting seat. The light guide groove is recessed at one end of the connecting seat, the light guide groove is communicated with the light guide hole, the coupling rod is assembled at one end of the connecting seat, and the thin tip is a bent rod body and forms There is a tip and a water outlet, the tip is located at one end of the thin tip, the water outlet is formed at the other end of the thin tip, the thin tip is assembled to the other end of the connecting seat, and the location of the water outlet is adjacent to The position of the light guide hole, the light guide bar is arranged in the light guide hole, and the position of the imaginary center extension line of the light guide hole is aligned with the tip position; A handle, one end of which has a coupling groove, a light source groove and a light emitting element, the position of the coupling groove corresponds to the position of the coupling rod, the position of the light source groove corresponds to the position of the light guide strip, and the light emitting element is arranged In the light source slot, the coupling rod is inserted through and assembled in the coupling slot.

Furthermore, in the dental handpiece structure, the handle further includes an elastic member disposed in the light source groove, one end of the elastic member abuts against the bottom of the light source groove, and the elastic member The other end abuts against the light-emitting element, and the light-emitting element can be displaced along the axial direction of the handle and selectively penetrates the light guide groove.

Furthermore, in the dental handpiece structure, the light-emitting element has a front end and a rear end, the periphery of the front end is chamfered, and the light source groove has a notch at one end, and the notch corresponds to the Light guide bar, the outer diameter of the front end is smaller than the inner diameter of the slot of the light source slot and the inner diameter of the slot of the light guide slot, and the outer diameter of the rear end is larger than the inner diameter of the slot of the light source slot, The front end of the light-emitting element can selectively abut the inner wall surface of the light source slot and is adjacent to the notch of the light source slot.

Furthermore, in the dental handpiece structure, the head further includes a front top grip and two front grips, the front top grip and each of the front grips are respectively recessed in the surrounding space The outer wall surface of the head, the cross section of the head at the position of the front top gripping part and each of the front gripping parts is in the shape of a triangular ellipse.

Furthermore, in the dental handpiece structure, the handle further includes a rear top grip and two rear grips, the rear top grip and each of the rear grips are respectively recessed around the interval On the outer wall surface of the grip, the cross section of the grip at the position of the rear top grip and each rear grip is in the shape of a triangular ellipse.

Furthermore, in the dental handpiece structure, the thin tip includes a base and a bent rod, one end surface of the base is concavely formed with a coupling groove, and the water outlet hole penetrates between the base and the coupling groove The connecting groove of the base is fixed to the connecting base, one end of the bent rod is connected to the base, the tip is located at the other end of the bent rod, and the outer wall of the bent rod is from the water outlet position of the base A water channel is formed by extending and recessing in the direction of the tip.

Furthermore, the dental handpiece structure further includes a handle and tail cover, the handle tail cover is a ring-shaped piece, and the handle tail cover is sleeved on the other end of the handle.

Furthermore, the dental handpiece structure further includes a plurality of anti-slip sleeves, each of the anti-slip sleeves is made of anti-slip material, and one of the anti-slip sleeves of each anti-slip sleeve is fixed to the connecting seat adjacent to the front top grip The position of the holding portion and each of the front side holding portions, and the other of the anti-skid sleeves is sleeved and fixed to the position of the handle adjacent to the rear top holding portion and each of the rear side holding portions.

The advantage of the new model is that after the light source is projected by the light emitting element, the light will be projected out from the light guide hole of the head at the front end through the light guide strip, and the range of light irradiation is concentrated on the tip position of the curved rod to achieve In addition to providing better surgical visibility for the effective lighting of the key parts of the operation, when the water spray is performed from the water outlet, the phenomenon of water mist affecting the vision can also be avoided. In addition, the front end of the luminous element is extended into the light guide groove The light emission also has the effect of preventing the light source from overflowing from the gap between the front assembly surface of the head and the rear assembly surface of the handle, thereby causing discomfort to the eyes of the user or patient.

In the following, in conjunction with the drawings and the preferred embodiments of the present invention, the technical means adopted by the present invention to achieve the predetermined creative purpose are further described.

Please refer to FIG. 1, the dental handpiece structure of the present invention includes a head 10, a handle 20, a plurality of anti-slip sleeves 30 and a tail cover 40.

Please refer to FIGS. 1 to 3, the head 10 includes a connecting seat 11, a connecting rod 12, a thin tip 13 and a light guide bar 14. The connecting seat 11 is a cylindrical body with a front end surface 111. A front assembly surface 112, a front grip surface 113, a light guide hole 114, a light guide groove 115, a front top grip portion 116 and two front grip portions 117, the front grip surface 113 is located at the front end surface Between 111 and the front assembling surface 112, the light guide hole 114 axially penetrates the opposite front end surface 111 and the front assembling surface 112 of the connecting seat 11, and the light guide groove 115 is recessed in the front assembling surface 112 of the connecting seat 11 to guide the light The groove 115 is in communication with the light guide hole 114, and the front top holding portion 116 and each front side holding portion 117 are respectively recessed on the front holding surface 113 around the interval. In this embodiment, the front top holding portion 116 is recessed. The shape corresponds to the shape of the user's index finger, and the shape of each front grip portion 117 corresponds to the shape of the user's thumb and middle finger. Please refer to FIG. In order to conform to the ergonomic shape, but not limited to this, the shape and location of the front top holding portion 116 and the front side holding portion 117 only need to be able to hold the hands stably.

Please refer to Figures 2, 3, 5 and 6, the coupling rod 12 is protrudingly provided on the front assembly surface 112 of the connecting base 11, and the coupling rod 12 is connected to the other end of the coupling base 11 with a nickel sheet (in the drawings) (Not shown), the nickel sheet is deformed by the expansion and contraction of the magnetic field. These phenomena are amplified by the coupling rod 12 and the thin tip 13 (described later) to generate more than 20,000 ultrasonic vibration frequencies. The nickel sheet is the prior art. The detailed structure of the standard component is omitted. The thin tip 13 includes a base 131 and a bent rod 132. One end surface of the base 131 is concavely formed with a coupling groove. The water outlet hole 133 penetrates the base 131 and is connected to the coupling groove. The connecting groove of the base 131 is fixed to the connecting seat 11, the other end of the bent rod 132 is bent to form a tip 134, and the outer wall surface of the bent rod 132 extends from the position of the water outlet 133 of the base 131 toward the tip 134 and is recessed A water guide groove 135 is formed, the base 131 is fixed on the front end surface 111 of the connecting seat 11, the position of the water outlet 133 is adjacent to the position of the light guide hole 114, the light guide bar 14 is disposed in the light guide hole 114, and the light guide hole 114 The position of the imaginary center extension line is aligned with the position of the tip 134. In other words, the light irradiated by the light guide strip 14 will be aligned with the tip 134 of the thin tip 13. The coupling rod 12 is a standard component of the prior art, and its detailed structure is not Go into details again.

Please refer to FIGS. 1 to 3, the handle 20 has a rear assembly surface 21, a coupling groove 22, a light source groove 23, a light emitting element 24, an elastic member 25, a rear top holding portion 26, and two rear On the side grip 27, the rear assembly surface 21 is located at one end of the handle 20, the coupling groove 22 is recessed on the rear assembly surface 21 and the position of the coupling groove 22 corresponds to the position of the coupling rod 12, and the light source groove 23 is recessed on the rear assembly surface 21 and the light source groove 23 has a notch and a groove bottom at one end. The inner diameter of the notch is smaller than the inner diameter of the groove bottom. In other words, the light source groove 23 is a narrow groove, and the position of the notch of the light source groove 23 corresponds to At the position of the light guide bar 14, the light emitting element 24 has a front end 241 and a rear end 242. The front end 241 and the rear end 242 are respectively located at two opposite ends of the light emitting element 24. The periphery of the front end 241 is chamfered. The outer diameter of the front end 241 is smaller than the inner diameter of the notch of the light source groove 23 and the inner diameter of the light guide groove 115, the outer diameter of the rear end 242 is larger than the inner diameter of the notch of the light source groove 23, the light emitting member 24 and the elastic member 25 are all arranged in the light source groove 23, one end of the elastic member 25 is against the bottom of the light source groove 23, the other end of the elastic member 25 is against the rear end 242 of the light emitting element 24, and the front end 241 of the light emitting element 24 is against the light source The inner wall surface of the groove 23 is adjacent to the notch of the light source groove 23, the light emitting element 24 can slide along the axial direction of the handle 20 in the light source groove 23, and the coupling rod 12 of the head 10 can be selectively inserted and assembled in the coupling In the groove 22, in this embodiment, the light-emitting element 24 is an LED lamp group, and the handle 20 uses two pieces of housing and is combined by ultrasonic welding. The precise structure to be placed inside the handle 20 can be preliminarily placed Precisely put in, and at the same time conduct a comprehensive visual inspection, to confirm that the welding is performed correctly, so as to improve the product quality and effectiveness, but not limited to this.

The rear top gripping portion 26 and each rear side gripping portion 27 are respectively recessed around the front grip surface 113 at intervals. In this embodiment, the recessed position and shape of the rear top gripping portion 26 correspond to the user's hand The position and shape of the index finger after grasping. The position and shape of each rear gripping portion 27 corresponds to the position and shape of the thumb and middle finger after gripping by the user's hand. The grip 20 is located at the rear top gripping portion 26 and the second rear The cross section of the position of the side grip 27 is approximately a triangular ellipse shape, in short, an ergonomic shape, but not limited to this, the shape of the rear top grip 26 and the rear grip 27 And the setting position only needs to be able to achieve the effect of holding the hand stably.

Please refer to Figures 1 and 2, each non-slip sleeve 30 is a ring-shaped piece, and one of the non-slip sleeves 30 of each non-slip sleeve 30 is sleeved and fixed on the connecting seat 11 adjacent to the front top grip 116 and each front grip 117, the other anti-slip sleeve 30 of each anti-slip sleeve 30 is sleeved and fixed to the position of the handle 20 adjacent to the rear top grip 26 and each rear grip 27. In this embodiment, each anti-slip sleeve 30 It is a flexible silicone cover, and the surface of the non-slip cover 30 is formed with lines, but it is not limited to this. The form of the non-slip cover 30 can be changed according to the needs of the user.

The handle cap 40 is a ring-shaped sheet body, which is sleeved on the other end of the handle 20. In this embodiment, the other end of the handle 20 is connected to a transmission line, which is used to provide power to the light-emitting element 24 and the thin tip 13 Water source, this is a standard component of the prior art, and its detailed structure will not be repeated. The position of the handle cap 40 is adjacent to the position where the transmission line is connected to the handle 20, and the handle cap 40 is made of a metal material, such as stainless steel, but not This is a limitation. The setting position and material of the handle tail cover 40 can be changed according to the user's needs, and only the effect of strengthening the structure can be achieved.

When the present invention is used, please refer to Figure 2. The head 10 can be inserted into the coupling groove 22 by the coupling rod 12 and rotatably mounted on the handle 20. The fixing method is the prior art and will not be described in detail. Please refer to Figures 7A and 7B. As shown, when the head 10 is rotated and mounted on the handle 20, the front end 241 of the light-emitting element 24 is pushed by the periphery of the front assembly surface 112 of the connecting seat 11, so that the light-emitting element 24 is displaced toward the bottom of the light source groove 23 , And the elastic member 25 is in a compressed state; please refer to Figures 8A and 8B, when the head 10 is rotated to be assembled behind the handle 20 (that is, when the front assembly surface 112 is adjacent to the rear assembly surface 21), because the light source groove 23 The notch is aligned with the notch of the light guide groove 115, and the light-emitting element 24 is pushed against by the restoring force of the elastic member 25, so that the light-emitting element 24 is displaced toward the light guide groove 115 until the front end 241 of the light-emitting element 24 is located in the light guide groove. Inside 115, in other words, the rear end 242 of the light-emitting element 24 is adjacent to the notch of the light source slot 23 and abuts against the inner wall of the light source slot 23 adjacent to the notch; please refer to FIG. 8A, FIG. 8B and FIG. 9, When the light-emitting element 24 projects light, the light will be projected out from the light guide hole 114 of the head 10 at the front end surface 111 through the light guide bar 14, and the range of light irradiation is concentrated on the tip 134 position of the curved rod 132, reaching In addition to providing better visibility for the effective illumination of local key parts, when the water spraying action is performed from the water outlet 133, the phenomenon of water mist affecting the vision can also be avoided. In addition, the front end 241 of the light emitting element 24 is extended into the light guide The light in the groove 115 also has the effect of preventing the light source from overflowing from the gap between the front assembly surface 112 of the head 10 and the rear assembly surface 21 of the handle 20, thereby causing discomfort to the eyes of the user or patient.

Please refer to Figures 2 and 4, in the foregoing process, since the cross section of the connecting seat 11 and the grip 20 at the position where the user is holding is approximately a triangular ellipse, the user can more easily and accurately control the present invention The rotation, thereby improving the fineness of operations that require delicate operations such as subgingival treatments. In addition, the front top grip 116, the front grip 117, the back top grip 26, and the back grip 27 are arranged Allows users to choose a suitable holding method according to their needs to achieve an ergonomic effect.

Please refer to FIG. 3, in the foregoing process, since the water outlet 133 of the thin tip 13 is located on the base 131, compared with the prior art that the water outlet is located on the bent rod, the structural strength of the bent rod 132 can be improved, and the bending The water guiding groove 135 on the rod 132 can guide the water sprayed from the water outlet 133 to the tip 134, which can not only achieve the effect of cooling the fine tip 13, but also avoid water splashing.

Please refer to FIG. 1, in the foregoing process, since the anti-skid sleeve 30 is provided, and the surface of the anti-skid sleeve 30 is formed with lines, it has an anti-slip effect.

In the foregoing process, since the tail cover 40 is provided, the end of the handle 20 adjacent to the transmission line can be prevented from being broken and damaged due to frequent bending and pulling.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above in the preferred embodiments, it is not intended to limit the present invention. Any technical field has Generally knowledgeable persons, without departing from the scope of the new technical solution, can use the technical content disclosed above to make slight changes or modifications as equivalent embodiments of equivalent changes. However, any content that does not deviate from the new technical solution is based on this The new technical essence makes any simple modifications, equivalent changes and modifications to the above embodiments still fall within the scope of the new technical solution.

10: head 11: Connecting seat 111: Front face 112: Front assembly surface 113: Front Grip 114: light guide hole 115: light guide slot 116: Front top grip 117: Front grip 12: Combination lever 13: fine tip 131: Pedestal 132: Bent Rod 133: Water Outlet 134: Tip 135: Ditch 14: Light guide 20: Grip 21: Rear assembly surface 22: Combination groove 23: light source slot 24: luminous parts 241: Front Face 242: rear face 25: Elastic part 26: Back top grip 27: Rear grip 30: non-slip cover 40: Handle tail cover

Figure 1 is a perspective view of the new model. Figure 2 is an exploded view of the new model. Figure 3 is a partial cross-sectional view of the new model. Figure 4 is another partial cross-sectional view of the new model. Figure 5 is a cross-sectional view of the new thin tip. Figure 6 is a three-dimensional appearance view of the new thin tip. Fig. 7A is a schematic diagram before the combination of the new type. Figure 7B is a partial enlarged view of the new type before combination. Figure 8A is a schematic diagram of the new combination. Figure 8B is a partial enlarged view of the new combination. Figure 9 is a schematic diagram of the use of the new model.

10: head

116: Front top grip

117: Front grip

20: Grip

26: Back top grip

27: Rear grip

30: non-slip cover

40: Handle tail cover

Claims (8)

A dental handpiece structure, which comprises: A head, which includes a connecting seat, a connecting rod, a thin tip and a light guide strip. The connecting seat is formed with a light guide hole and a light guide groove. The light guide hole penetrates two opposite sides of the connecting seat. The light guide groove is recessed at one end of the connecting seat, the light guide groove is communicated with the light guide hole, the coupling rod is protrudingly provided at one end of the connecting seat, and the thin tip is a bent rod body and A tip and a water outlet hole are formed, the tip is located at one end of the thin tip, the water outlet hole is formed at the other end of the thin tip, the thin tip is assembled to the other end of the connecting seat, the location of the water outlet is adjacent At the position of the light guide hole, the light guide bar is disposed in the light guide hole, and the position of the imaginary center extension line of the light guide hole is aligned with the tip position; A handle, one end of which has a coupling groove, a light source groove and a light emitting element, the position of the coupling groove corresponds to the position of the coupling rod, the position of the light source groove corresponds to the position of the light guide strip, and the light emitting element is arranged In the light source slot, the coupling rod is inserted through and assembled in the coupling slot. The dental handpiece structure of claim 1, wherein the handle further includes an elastic member disposed in the light source groove, one end of the elastic member abuts against the bottom of the light source groove, and the elastic member The other end abuts against the light-emitting element, and the light-emitting element can be displaced along the axial direction of the handle and selectively penetrates the light guide groove. The dental handpiece structure according to claim 1 or 2, wherein the light-emitting element has a front end and a rear end, the periphery of the front end is chamfered, and the light source groove has a notch at one end, and the notch corresponds to In the light guide bar, the outer diameter of the front end is smaller than the inner diameter of the slot of the light source slot and the inner diameter of the slot of the light guide slot, and the outer diameter of the rear end is larger than the inner diameter of the slot of the light source slot The front end of the light-emitting element can selectively abut the inner wall surface of the light source groove and is adjacent to the notch of the light source groove. The dental handpiece structure according to claim 3, wherein the head further includes a front top grip and two front grips, and the front top grip and each of the front grips are respectively recessed around the interval The outer wall surface of the head, the cross section of the head at the position of the front top gripping part and each of the front gripping parts is in the shape of a triangular ellipse. The dental handpiece structure according to claim 4, wherein the handle further includes a rear top grip and two rear grips, the rear top grip and each of the rear grips are respectively recessed around the interval On the outer wall surface of the grip, the cross section of the grip at the position of the rear top grip and each rear grip is in the shape of a triangular ellipse. The dental handpiece structure according to claim 5, wherein the thin tip includes a base and a bent rod, one end surface of the base is concavely formed with a coupling groove, and the water outlet hole penetrates the base and the coupling groove The connecting groove of the base is assembled to the connecting seat, one end of the bent rod is connected to the base, the tip is located at the other end of the bent rod, and the outer wall of the bent rod faces the water outlet position of the base The direction of the tip extends and is recessed to form a water guiding channel. The dental handpiece structure according to claim 6, further comprising a handle tail cover, the handle tail cover is a ring-shaped piece, and the handle tail cover is sleeved on the other end of the handle. The dental handpiece structure according to claim 7, further comprising a plurality of anti-slip sleeves, each of the anti-slip sleeves is made of anti-slip material, and one of the anti-slip sleeves of each anti-slip sleeve is fixed to the connecting seat adjacent to the front top grip The position of the holding portion and each of the front side holding portions, and the other of the anti-skid sleeves is sleeved and fixed to the position of the handle adjacent to the rear top holding portion and each of the rear side holding portions.

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