1. Field of the Disclosure
This disclosure relates generally to hand-held dental devices, and in particular, to providing light for hand-held magnetostrictive dental devices by using an adaptor.
2. Background Description
Magnetostrictive ultrasonic dental devices are used in dentistry to remove calculus from teeth and perform other cleaning or abrasive operations by vibrating a metal insert at an ultrasonic frequency. A magnetostrictive ultrasonic dental device typically receives electric current having a controlled frequency from a generator and translates the received electrical energy into a mechanical motion of a tip of an insert coupled to a hand-piece. To this end, a magnetostrictive dental device hand-piece includes an electrical connector, a coil, and a housing functioning as a handle. Alternating current provided to the coil induces a corresponding alternating magnetic field. At a resonant frequency, a stack of metal plates disposed within the coil may vibrate in response to the alternating magnetic field, and these vibrations may be transferred to the tip.
Since a mouth is a small and dimly-lit space in which to work, it is desirable to have an ultrasonic dental tool that can bring light directly into and around the working area, e.g., tooth and gumline surfaces. It is further desirable to omit an additional power cord for the light to minimize the number of obstructions that may get in the way of a dental practitioner's task at hand. Several known approaches exist where light is delivered to the tip end of a magnetostrictive insert by using available power in the coil of the hand-piece without needing an additional power cord.
In one known approach, a magnetostrictive ultrasonic dental insert includes a first coil or transducer for generating ultrasonic vibrations and producing the mechanical motion of the dental tip. A second coil or transducer generates a voltage signal in response to the mechanical movement. A light source in the vicinity of the tip receives the voltage signal from the second transducer and illuminates. This approach has several disadvantages. First, the intensity of the generated light may vary based on power fluctuations delivered to the first coil, such as when an operator varies tip vibration rate by varying the power to the hand-piece. Second, the intensity of the light may vary based on the integrity of the stack itself. Furthermore, this approach does not allow the light source to be turned on when the tip is not vibrating, as the voltage generated by the second transducer and used to illuminate the light source necessarily requires energizing the first transducer and stack.
In another known approach, a magnetostrictive ultrasonic dental device includes a similar primary coil for generating ultrasonic vibrations and the mechanical motion of the dental tip. A secondary coil is positioned to be inductively coupled to the primary coil and electrically connected to the light source. The secondary coil is oriented so that a magnetic field induced by energizing the first coil induces, in turn, a current flow in the second coil that causes the light source to illuminate. Like the first discussed approach, this other approach also suffers from varying intensities of the light source based on power fluctuations delivered to the first coil. Similarly, in this approach, the light source may not be turned on independent from tip vibration.
In yet another known approach, light may be piped from a light source in an ultrasonic generator to the ultrasonic dental device. At the ultrasonic dental device, the light may be delivered through hand-piece tubing, the hand-piece, and the insert to the tip. This approach, however, requires the ultrasonic dental device to be used with a generator equipped with a light source.
This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Embodiments of an adaptor for use with a lighted magnetostrictive device are disclosed. In some embodiments, the adaptor may include a housing and a self-contained electrical storage device disposed within the housing. (The terms “electrical storage device,” “electric power storage device,” and “power pack” are interchangeably used herein, and are described in more detail in a later section.) The self-contained electrical storage device may power a light source to illuminate an area proximate to the lighted magnetostrictive device. The adaptor may be removably attached to a hand-piece of the lighted magnetostrictive device, and the light source may be disposed within the adaptor, the hand-piece or the insert.
In other embodiments, the adaptor may include a housing and an adaptor light channel disposed therein and configured to deliver or channel light from a light source to an insert of the lighted magnetostrictive device, so that the light may be channeled from the adaptor, through the insert, and to an area external and proximate to the lighted magnetostrictive device. The adaptor may be removably attached to the hand-piece of the lighted magnetostrictive device. The light source may be disposed within the adaptor or the hand-piece, and may be powered by an electric power source that provides electric power independently of a magnetic field generated by the lighted magnetostrictive device.
Embodiments of a lighting system for a hand-held dental delivery device are disclosed. In some embodiments, the lighting system may include a hand-piece of the hand-held dental delivery device and an insert coupled to the hand-piece, where the insert includes a tip and an insert light channel configured to channel or deliver light through the insert to illuminate an area proximate to the tip. The lighting system may include an adaptor that is removably coupled to the hand-piece and includes an electrical storage device for powering a light source. The electrical storage device may be self-contained, and may be configured to provide electric power independently of a magnetic field generated by the dental delivery device. The light source powered by the electrical storage device may be disposed in the hand-piece, the adaptor or the insert.
In some embodiments, the lighting system may include the hand-piece of the hand-held dental delivery device, the insert coupled to the hand-piece including the tip, and an insert light channel configured to channel or deliver light through the insert to an area proximate to the tip. The lighting system may include an adaptor that is removably coupled to the hand-piece and includes an adaptor light channel configured to channel or deliver light to the insert. The light source may be disposed in the hand-piece or the adaptor, and may be powered by a source that is configured to provide electric power independently of a magnetic field generated by the dental delivery device.
Embodiments of a method of providing light at a magnetostrictive hand-held device are disclosed. In some embodiments, the method may include engaging an insert within a hand-piece of the magnetostrictive hand-held device; attaching an adaptor to the hand-piece, where the adaptor includes a self-contained electrical storage device for powering a light source; abutting the insert to the adaptor; and disposing the light source in the insert, the adaptor or the hand-piece.
In some embodiments, the method may include engaging an insert within a hand-piece of the magnetostrictive hand-held device; attaching an adaptor to the hand-piece, where the adaptor includes an adaptor light channel for delivering or channeling light from a light source to the insert; and coupling the light source to an electric power source that is configured to provide electric power independently of a magnetic field generated by the dental delivery device.
The embodiments of the present disclosure provide numerous benefits. For example, in some embodiments of the present disclosure, the light source is powered by an electric power storage device or power pack that is different from the power source of the magnetostrictive device. Thus, power fluctuations to the device do not affect the intensity of the light source at all. By using the electrical storage device, the light source generally may deliver a light at a steady, desired level of intensity with minimal fluctuations. Similarly, by using the electrical storage device, power (and therefore, light intensity) fluctuations are divorced from an integrity of a stack within a magnetostrictive device. In some embodiments, the electrical storage device may be conveniently re-charged via induction.
Furthermore, the embodiments of the present disclosure allow the light source to be illuminated even when a tip of a magnetostrictive device is not moving. In fact, the present disclosure provides embodiments that allow a user to control whether the light source is on or off independently, from a user perspective, of whether or not the tip is activated.
Additionally, embodiments of the present disclosure do not limit the magnetostrictive dental device to being used with only generators that are equipped with a light source, but allow the magnetostrictive dental device to be used with any type of generator. The present disclosure also eliminates an extra light pipe between a generator and the dental device to further minimize the number of obstructions that may get in the way of a dental practitioner's task at hand.
Although the following text sets forth a detailed description of numerous different embodiments, it should be understood that the legal scope of the description is defined by the words of the claims set forth at the end of this patent and equivalents. The detailed description is to be construed as exemplary only and does not describe every possible embodiment since describing every possible embodiment would be impractical. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of the application for this patent, which would still fall within the scope of the claims.
The hand-piece 14 may translate the electrical energy received from the generator 12 into mechanical energy by inducing an electro-magnetic field and applying this field to a vibrating or otherwise movable component. In particular, the hand-piece 14 may vibrate a tip 24 of an insert 25 that is enabled to move in response to the electro-magnetic field. The tip 24 may vibrate at a frequency dependent on the driving AC frequency supplied by the generator 12, the physical dimensions of the tip 24, and the internal circuitry of the hand-piece 14. Although illustrated in
The hand-piece 14 may have a tubular, rectangular, or other elongated form. The insert 25 may engage the hand-piece 14 at a patient-proximal end 26. Accordingly, the port 20 may be disposed at the patient-distal end 28. The operator may hold the hand-piece 14 at or about the grip section 29. Although the grip section 29 may be integral with the body of the hand-piece 14,
The insert 25 may include a magnetostrictive stack 205 typically formed of nickel or nickel alloy plates that may be soldered together at each end. When the insert 25 is insertably engaged with the hand-piece 14, the stack may be encircled by, or may be in proximity to, a coil 208 in the hand-piece 14. The coil 208 may receive electrical energy via the cord 16, and may induce a magnetic field. The stack 205 may respond to the induced magnetic field. For example, at a corresponding resonant frequency, the stack 205 may vibrate in response to the magnetic field. Although
The stack 205, the one or more rods or other magnetic element may be connected to an ultrasonic horn or a velocity transducer 210 which may, in turn, be connected to the tip 202 covered with a grip 212. In this illustration, the tip 202 is illustrated as a scaling tip, but any known tip for a dental procedure may be used in conjunction with embodiments of the present invention. The velocity transducer 210 may be integral with the tip 202 or may be threaded to provide a threaded connection with the tip 202. Thus, a vibration of the stack 205 in response to an induced magnetic field at a resonant frequency may cause (via the velocity transducer 210) the tip 202 to vibrate accordingly. As known in the art, the resonant frequency may not be an exact, precise frequency. Real-world factors such as impedance and a physical condition of the stack or magnetic element may come into play, so that a resonant frequency may include a narrow range of frequencies around an exact frequency that may still effect the vibration of the stack 205.
As shown in
When the insert 312 is engaged within the hand-piece 308 and the adaptor 305 is securely connected to the hand-piece 308, at least a portion of the insert 312 may abut at least a portion of the adaptor 305. This abutment may allow the adaptor light channel 415 to be aligned with one or more insert light-entering apertures 507 in connection with one or more insert light channels 510 within the insert 312. The insert light channels 510 may configured to channel or deliver light from the insert light-entering aperture(s) 507, and through the insert 312 to exit the insert at the light-exiting aperture 502. In some embodiments, the insert light-exiting aperture 502 may be proximate to the tip 315 so that the light illuminates an area proximate to the tip 315, but other embodiments may be possible. The one or more insert light channels 510 may be one or more light pipes disposed longitudinally along one or more sides of the insert 312, or the one or more insert light channels 510 may encircle a stack or coil of the insert 312 along its length. Other configurations of the one or more insert light channels 510 may be possible.
In some embodiments, the one or more light source(s) 412a, 412b disposed within the adaptor 305 may be in electrical connection with and powered by a self-contained electrical storage device (not shown) co-disposed within the adaptor 305. The self-contained electrical storage device may generate electric power independent of a magnetic field produced by the magnetostrictive device. The self-contained electrical storage device may be, for example, a single battery, a battery pack, or any suitable type of known disposable, replaceable or rechargeable battery. In some embodiments, the self-contained electrical storage device may be another type of power density device, such as a supercapacitor, an electrochemical double layer capacitor (EDLC), or an ultracapacitor. In fact, any known self-contained electrical storage device may be used in conjunction with embodiments of the present disclosure.
In some embodiments, the one or more light source(s) 412a, 412b disposed within the adaptor 305 may be in electrical connection with and powered by an external electric power source that is externally disposed to the hand-piece 308, the insert 312 and the adaptor 305. For example, the one or more light source(s) 412a, 412b may be coupled to a standard electrical wall outlet. In another example, the one or more light source(s) 412a, 412b may receive electric power from a same electric power source of the magnetostrictive device, such as the generator 12 shown in
Irrespective of the electric power source by which the one or more light source(s) 412a, 412b receives electrical energy, a user-activated switch (not shown) may be provided to interrupt and re-establish the electrical connection between the electric power source and the one or more light source(s). Thus, via the user-activated switch, a user of the magnetostrictive device may control whether or not the light source is illuminated.
Although the one or more light sources 412a, 412b are illustrated in
In
In the embodiment 700 of
While the light source 725 is depicted in the embodiment 700 as being an LED disposed near the tip 715 of the insert 712, this illustrated configuration is only exemplary. In fact, the light source may be any known type of light generating source, such as one or more incandescent bulbs, neon bulbs, or light rings. Moreover, the light source need not be disposed near the tip 715 of the insert 712. In some embodiments, the light source may be disposed within the housing of the insert 712, and the insert 712 may include an insert light channel configured to channel the light from the light source through the insert 712 to an insert light-exiting aperture near the tip 715, such as the insert light-exiting aperture 502 shown in
Indeed, in some embodiments, the light source may not be disposed in the insert 712 at all. For example, the light source may be disposed within the walls 718, 720 of the adaptor 705 and may be in direct electrical connection with the electric power storage device 722. In these embodiments, the adaptor 705 may further include within its walls 718, 720 an adaptor light channel such as, for example, a first light pipe. When the adaptor 705 is securely attached to the hand-piece 708, a portion of the adaptor 708 may align with a portion of the insert 712 so that the adaptor light channel is aligned with an insert light-entering aperture of an insert light channel disposed within the insert, such as the insert light-entering aperture 507 of
In other embodiments, the light source may be disposed within the hand-piece 708, the hand-piece may include a hand-piece light channel, and the insert 712 may include an insert light channel. When the insert 712 is engaged within the hand-piece 708, the hand-piece light channel and the insert light channel may be aligned. Furthermore, when the adaptor 705 is securely attached to the hand-piece 708, a secure electrical connection may be established between the electric power storage device 722 within the adaptor 705 and the light source within the hand-piece 708. In this manner, the electric power storage device 722 may power the light source disposed within the hand-piece 708, and light generated by the light source may be directed or channeled through the hand-piece light channel into the insert light channel and through the insert light channel to exit the insert 712 to illuminate the area surrounding the tip 715.
In yet other embodiments, the light source may be disposed within the hand-piece 708, the hand-piece 708 may include a hand-piece light channel, the insert 712 may include an insert light channel, and the adaptor 705 may include an adaptor light channel within its walls 718, 720. When the adaptor 705 is securely attached to the hand-piece 708, the adaptor 705 may be aligned with the hand-piece and the insert so that the hand-piece light channel, the adaptor light channel and the insert light channel are sequentially aligned. Furthermore, a secure electrical connection may be established between the electric power storage device 722 within the adaptor 705 and the light source 708 within the hand-piece 708. In this manner, the electric power storage device 722 may provide power to the light source 708, and the light generated by the light source may be directed or channeled through the hand-piece light channel into the adaptor light channel, through the adaptor light channel into the insert light channel, and through the insert light channel to exit the insert 712 to illuminate the area surrounding the tip 715.
As discussed above, embodiments of the present disclosure may operate in conjunction with the light source being located within the hand-piece 708, the adaptor 705 or the insert 712. Irrespective of the location of the light source, however, when the adaptor 708 is in full, secure connection with the hand-piece 708 and the insert 712 is fully engaged within the hand-piece, at least some portion of the adaptor 708 may abut at least some portion of the insert 712. An electrical connection to the light source may be established and light channels within the adaptor 705, hand-piece 708 and/or insert 712 (as appropriate) may be aligned so that light from the light source may be delivered to illuminate an area proximate to the tip 715. As power to the light source is generated by the electric power storage device 722 and thus is generated independently of a magnetic field produced by the magnetostrictive device, the intensity of the generated light will not vary based on power fluctuations at the magnetostrictive device.
A user-activated switch (not shown) may be provided so that a user of the device 700 may control whether or not the light 725 is on or off while the tip 715 is vibrating. For example, when the user desires the light 725 to turn off, he or she may indicate “off” via the user-activated switch. The user-activated switch may interrupt one or more of the electrical connections 728a, 728b, 730a-730d between the electrical storage device 722 and the light source 725. Similarly, when the user desires the light 725 to turn on, he or she may indicate “on” via the user-activated switch, and the user-activated switch may re-establish the one or more electrical connections 728a, 728b, 730a-730d. The user-activated switch may be physically located on the exterior of the hand-piece 708, the adaptor 705 or the insert 712, or the user-activated switch may be remotely located, for example, on a separate hand- or foot-operated control in communicative connection with the device 700. In any event, the user-activated switch may preferably be sealed or otherwise configured to prevent water, saliva, debris or other undesired artifacts from entering the hand-piece 708, the adaptor 705 and/or the insert 302. Other embodiments of a user-activated switch may alternatively or additionally be possible.
For embodiments where the electrical storage device 722 is a rechargeable, self-contained battery or electrical storage device, the battery may be recharged, for example, by removing the battery 722 from the adaptor 705, seating the battery into a separate charging device, allowing the separate charging device to charge the battery, and returning the battery to the adaptor 705 after it has been charged. In another example, the electrical storage device 722 may be a battery pack with a charging connection port, and the battery pack may be recharged by plugging a charging cord directly into the charging connection port.
In yet another example, the electrical storage device 722 may be partially or entirely recharged via induction.
Similar to
The magnetostrictive ultrasonic device 800 may also include an induction charger or charging device 802 for recharging all or part of the electrical storage device 805. The induction charger or charging device 802 may be electrically coupled to the electrical storage device 805 and may be inductively coupled to the drive coil 815. For example, the induction charger 802 may include a transducer 825 that is positioned to be inductively coupled to the drive coil 815. The transducer 825 may produce a current that is induced by the magnetic field 821 that is produced when a current is applied to the drive coil 815. In some embodiments, the transducer 825 may be an induction coil, but other types of suitable transducers 825 may be used in conjunction with the present disclosure.
The induced current produced by the transducer 825 may be converted or modified 828 into a current format that may flow to the rechargeable electrical storage device 805 and may effect a re-charging of some or all of the electrical storage device 805. For example, the current from the transducer 825 may be inverted, rectified, or otherwise converted in a manner known in the art. Thus, generally speaking, the magnetic field 821 induced by the drive coil 815 that causes the tip 820 of the insert 510 to vibrate may also be used to inductively recharge the electrical storage device 805 that supplies power to the light source 808 of the device 800.
In some embodiments, the electrical storage device 805 may be re-charged by physically coupling the adaptor 807 not to the hand-piece or receptacle 812 but to a re-charging or docking station (not shown). The re-charging or docking station may be a separate physical entity from the adaptor 807, the insert 810, and the receptacle 812. The re-charging or docking station may be configured to securely receive the adaptor 807 (e.g., the adaptor 807 may be seated into the docking station) to enable a re-charging the electrical storage device 805, and upon a partial or complete re-charging of the electrical storage device 805, the adaptor 807 may be uncoupled from the re-charging or docking station. The re-charging station may include a magnetic field source such as a coil to which electric current is applied, a permanent magnet or other magnetic field source. In some embodiments, the re-charging station may include an electrical connection to an electric power source, such as when the re-charging station includes the coil to which electric current is applied. When the adaptor 807 is physically coupled to the re-charging station, the transducer 825 of the induction charger 802 may produce a current in response to the magnetic field provided by the re-charging station, and the current may effect a total or partial re-charging of the electrical storage device 805.
While
Variations on initiating the inductive recharging of the electrical storage device 805 may be possible. For example, in some embodiments, recharging may only occur when an electrical storage device 805 has drained down to a certain level. In some embodiments, recharging may initiate in response to a user indication. Other variations of inductively recharging the electrical storage device 805 may be contemplated and operate in conjunction with the contents of the present disclosure.
At the start, the method 900 may include disposing 905 a light source within an adaptor, insert or hand-piece of the magnetostrictive device. The light source may be any type of electrically generated light source, such as an LED, an incandescent light, a fluorescent light, a light ring, a neon light, or other type of light source.
At block 908, an electrical storage device may be disposed within the adaptor. The electrical storage device may be a single battery, a battery pack, an electric double-layer capacitor, or other known electrical storage device. The electric power storage device may be replaceable or rechargeable. The electric power storage device may be self-contained, and may be configured to generate electric power independently of a magnetic field generated by the magnetostrictive hand-held device.
At the block 910, the adaptor may be securely connected to the hand-piece. For example, the adaptor may be slid over the hand-piece into a secure position, the adaptor may be latched onto the hand-piece, or the adaptor may be connected by some other secure means. At block 912, the insert may be securely engaged within the hand-piece of the magnetostrictive device.
At block 915, at least in part by virtue of the connections performed at the blocks 910 and 912, at least a portion of the insert may abut to the at least a portion of the adaptor. At block 917, at least in part by virtue of the blocks 910, 912 and 915, an electrical connection between the electrical storage device and the light source may be established. Additionally, at least in part by virtue of the blocks 910, 912 and 915, a light channel path from the light source through the insert may be established.
At block 918, light may be channeled from the light source and may exit the insert at an aperture proximate to the tip of the device (or at any desired exit aperture of the insert).
In some embodiments of the method 900, an optional block 920 may include interrupting and re-establishing the electrical connection between the electrical power source and the light source based on a user input. In some embodiments, the method 900 may include dimming and/or brightening an intensity of the light via the same or a different user input. The user may thus be able to control turning the light on and off and/or adjusting the intensity of the light irrespective of whether or not the tip is vibrating.
In some embodiments of the method 900, an optional block 925 may include re-charging at least a portion of the electrical storage device. For example, re-charging at least a portion of the electrical storage device may include seating the electrical storage device or the adaptor into a docking station such as described with respect to
At the start, the method 1000 may include disposing 1005 a light source within an adaptor or within a hand-piece of the magnetostrictive device. The light source may be any type of electrically generated light source, such as an LED, an incandescent light, a fluorescent light, alight ring, a neon light, or other type of light source.
At block 1008, an adaptor light channel may be disposed within the adaptor. The adaptor light channel may be a light pipe disposed longitudinally along one or more sides of the adaptor, or the adaptor light channel may encircle an inner air core of the adaptor along its length. Other configurations of the adaptor light channel may be possible.
At the block 1010, the adaptor may be securely connected to the hand-piece. For example, the adaptor may be slid over and secured to the hand-piece, the adaptor may be latched onto the hand-piece, or the adaptor may be connected by some other secure means. At block 1012, the insert may be securely engaged within the hand-piece of the magnetostrictive device. At least in part by virtue of the blocks 1010 and 1012, at least a portion of the insert may abut at least a portion of the adaptor so that the adaptor light channel and an insert light channel may be aligned. If the light source is disposed within the hand-piece, a hand-piece light channel and the adaptor light channel may be aligned so that light may be delivered or channeled from the hand-piece into the adaptor.
At block 1015, the light source may be coupled to an electric power source. The electric power source may be a generator or may be a standard electrical wall outlet. The electric power source may be self-contained, and may be a single battery, a battery pack, an electric double-layer capacitor, or other known electrical storage device. The electric power source may be replaceable or rechargeable. The electric power source may be configured to generate electric power independently of a magnetic field generated by the magnetostrictive hand-held device.
At block 1018, at least in part by virtue of the blocks 1010 and 1012, light may be channeled from the light source, through the adaptor light channel, and to the insert. The light may exit the insert at an aperture proximate to the tip of the device (or at any desired exit aperture of the insert).
In some embodiments of the method 1000, an optional block 1020 may include interrupting and re-establishing the electrical connection between the electric power source and the light source based on a user input. The method 1000 may include dimming and/or brightening a generated intensity of the light source based on the same or a different user input. The user may thus be able to control turning the light on and off and/or its intensity.
It should also be understood that, unless a term is expressly defined in this patent using the sentence “As used herein, the term ‘_’ is hereby defined to mean . . . ” or a similar sentence, there is no intent to limit the meaning of that term, either expressly or by implication, beyond its plain or ordinary meaning, and such term should not be interpreted to be limited in scope based on any statement made in any section of this patent (other than the language of the claims). To the extent that any term recited in the claims at the end of this patent is referred to in this patent in a manner consistent with a single meaning, that is done for sake of clarity only so as to not confuse the reader, and it is not intended that such claim term by limited, by implication or otherwise, to that single meaning. Finally, unless a claim element is defined by reciting the word “means” and a function without the recital of any structure, it is not intended that the scope of any claim element be interpreted based on the application of 35 U.S.C. §112, sixth paragraph.
Although the forgoing text sets forth a detailed description of numerous different embodiments, it should be understood that the scope of the patent is defined by the words of the claims set forth at the end of this patent. The detailed description is to be construed as exemplary only and does not describe every possible embodiment because describing every possible embodiment would be impractical, if not impossible. Numerous alternative embodiments could be implemented, using either current technology or technology developed after the filing date of this patent, which would still fall within the scope of the claims.
Thus, many modifications and variations may be made in the techniques and structures described and illustrated herein without departing from the spirit and scope of the present claims. Accordingly, it should be understood that the methods and apparatus described herein are illustrative only and are not limiting upon the scope of the claims.