• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Dental implant surface treatment device comprising a central body formed by three side walls that define a treatment chamber in the shape of a triangular prism. The three side walls are joined together by vertical rounded edges. The treatment chamber is configured to house at least one dental implant. The device also comprises a support on which the central body is located, a cover coupled to an upper mouth of the central body, a plurality of LEDs located on the side walls of the treatment chamber that radiate ultraviolet light on the outer surface of the dental implants and a reflective surface located on internal faces of the treatment chamber to reflect ultraviolet light towards dental implants. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2790048A1
    申请号:ES201930368
    申请日:2019-04-25
    公开日:2020-10-26
    发明作者:Olea Unai Ugalde；Calvo M Iciar Arteagoitia；Lamas Nagore Arroyo
    申请人:Euskal Herriko Unibertsitatea；
    IPC主号:
    专利说明:

    [0004] The present invention belongs to the field of dental implant treatment devices in which ultraviolet light is used to improve the osseointegration of the same; that is, its integration into the patient's bone.
    [0007] One of the consequences of the natural aging of people is the deterioration or loss of some of the elements that make up the human body. The loss or deterioration of these elements can also be due to accidents, illnesses or existing malformations. One of the most routine treatments in medicine to replace or repair these elements consists of the use of implants, such as breast, vascular, cochlear implants, hip and knee prostheses, or dental implants, among others. Some of these implants, such as those used in orthopedic reconstructive surgery or dental implants, base their survival on establishing a firm, stable and lasting connection between said implant under load and the bone that surrounds it. The survival of the implant will depend on the maintenance of its integration with said bone: its osseointegration, defined as the intimate, direct, functional and maintained connection between the bone and a loaded implant.
    [0008] Implant treatment has shown low failure rates. However, when implants fail, it is not well tolerated by either the professional or the patient due to the complexity of most procedures, the risks inherent in the surgical technique, and the social and economic cost. Therefore, knowing the reasons that cause implant failure and developing clinical or pharmacological procedures that increase success rates is a goal of implantology professionals and implant manufacturing companies.
    [0009] In recent years, the efforts of the research community have focused on trying to improve osseointegration through the appropriate selection of the base material of the implants, mainly, but not only, pure or alloyed Titanium (Ti), as well as the finish of its surface. , both mechanical and chemical. However, there are other factors that negatively affect the osseointegration of implants, such as contamination of the implant with hydrocarbon and polycarbonyl-type impurities during its storage and distribution phases, which it would cause their "biological aging". That is, the surface tested by the manufacturer at the time the implant was manufactured would undergo a series of modifications due to contamination unrelated to the manufacturing process, which the manufacturer cannot control and which negatively affect osseointegration and therefore the survival of the implant. implant.
    [0010] To improve the osseointegration of dental implants, which are mostly made of Ti, these implants can be subjected to a photofunctionalization process that consists of illuminating them with ultraviolet (UV) light just before being placed in the patient. It is well known that Ti is naturally oxidized rapidly, forming a thin layer (a few nm) of mainly Titanium oxide (TD 2). The application of UV light on the implant surface causes physicochemical alterations in the TiO2 layer, and therefore in the surface of all Ti implants, such as, for example, a very substantial increase in its degree of hydrophilicity. This photofunctionalization process removes, among other substances, the carbon contaminants adsorbed on the surface layer of TiO2.
    [0011] The classic technology to produce UV light has been the mercury vapor tube (Hg), because its emission spectrum has two important peaks at A = 254 nm (UVC) and A = 365 nm (UVA, almost visible). Depending on which peak is of interest, the steam in the tube is given a lower pressure (more UVC: food sterilization, air purification ...) or higher pressure (more UVA: solarium cabins, kills insects, etc.). However, due to the contaminating potential of Hg, the Minamata convention prohibits the manufacture and sale of this type of lamp as of 2020. Furthermore, Hg vapor tubes have a relatively short life, being very inefficient they produce a lot of heat. Although they require an electronic starter of a certain sophistication and size, it is almost impossible to regulate the intensity of the light they emit.
    [0012] Therefore, solutions have not yet been developed that effectively and satisfactorily solve the problems of osseointegration associated with the functional deterioration of the outer surfaces of the implants during their marketing and storage.
    [0015] The osseointegration of the implants is substantially improved if the carbonaceous contaminants adsorbed on the surface of the implants are removed, which can be achieved by illuminating them with ultraviolet light: this is known as "photofunctionalization". This photofunctionalization can be carried out in the corresponding doctor's office or operating room, just before the implant is placed in the patient.
    [0016] The invention provides a solution to the problems mentioned by means of a dental implant surface treatment device according to claim 1. Preferred embodiments of the implant surface treatment device are described in the dependent claims.
    [0017] A first aspect of the invention relates to a dental implant surface treatment device comprising a central body formed by three side walls that define a treatment chamber in the shape of a triangular prism. The three side walls are joined together by rounded vertical edges adopting an elliptical profile that improves the reflection of the incident light, especially the light coming from the LED diodes located in positions inside the treatment chamber opposite each dental implant. The treatment chamber is configured to house at least one dental implant. The three vertical walls will preferably have dimensions such that their height is greater than their width so that the treatment chamber can house the dental implants and also allow a comfortable manipulation by professionals in implantology of said dental implants within of the treatment chamber.
    [0018] The dental implant surface treatment device also comprises a support on which the central body is located, a cover coupled to the upper mouth of the central body to allow access to the interior of the treatment chamber, a plurality of LEDs located in the side walls of the treatment chamber that radiate UV light onto the outer surface of the at least one dental implant and a reflective surface located on the inner faces of the treatment chamber to reflect ultraviolet light toward the at least one dental implant.
    [0019] In some embodiments, each side wall of the treatment chamber comprises two LEDs. For example, the two LEDs on each side wall could be positioned at a height that corresponds to a location of the dental implants in the treatment chamber and covering the length of the implant. That is, one of the two LEDs could be positioned in correspondence with one end of the dental implant and the other LED could be positioned in correspondence with the other end of the dental implant, thus covering the length of the implants.
    [0020] In some embodiments, the LEDs are connected to each other in series. This ensures that the same current flows through all of them and that, therefore, they emit the same light output. With a uniform light output inside the treatment chamber, the photo-functionalizing effect of UV light is homogeneous on the external surface of dental implants.
    [0021] In some embodiments, the reflective surface is placed on internal faces of the three side walls, on a lower face of the cover and on a portion of the upper face of the support in correspondence with the chamber of treatment. In some examples, the reflective surface could be at least one reflective plate attached to the inner faces of the three side walls, the lid and the support, while, in other examples, the reflective surface could be integrated into the walls of the three side walls, the lid and the support. The reflective surface could be made of a material whose reflectivity in the UVC range is equal to or greater than that of aluminum. For example, this reflective surface could be made of a coating based on aluminum, as this material has a very high reflectivity in the UVC range. The reflectivity of aluminum is at least 80% for opaque aluminum while it can exceed 95% for polished aluminum.
    [0022] In some embodiments, the treatment chamber is configured to house three dental implants such that all three dental implants are decontaminated simultaneously.
    [0023] In some embodiments, the plurality of LEDs emit with a wavelength less than or equal to 280 nm, that is, they emit in the UVC range. More preferably, the plurality of LEDs emits with a wavelength of 278 nm.
    [0024] In some embodiments, the dental implants are distributed within the treatment chamber such that each dental implant interrupts a direct ultraviolet light beam between the LEDs on two adjoining side walls. Thus, it is achieved that the LED diodes do not illuminate each other directly, preventing the LED diodes from overheating and, therefore, the treatment device loses efficiency, and, above all, said LEDs do not damage each other, shortening its useful life.
    [0025] In some embodiments, the dental implant surface treatment device comprises retention elements for each dental implant within the treatment chamber. These retention elements are attached to the upper face of the holder and each retention element is configured to retain a dental implant. For example, the retention elements may have a height adjustment means for adjusting the height of the retention elements relative to the treatment chamber. Thus, the retention elements could have a threaded stud at their lower end configured to thread into an existing thread in the support, so that the height of the retention means can be modified in, for example, a range of / - 2 mm . Furthermore, the upper end of the retaining means may be in the form of a screwdriver head for fixing and retaining the dental implants in the retaining means.
    [0026] In some embodiments, the dental implant surface treatment device comprises a dental implant turning mechanism. This turning mechanism is coupled to the retention elements. The turning mechanism is configured to rotate the retention elements around the axis of the dental implant itself. For example, the turning mechanism may comprise a gear coupled to each retainer, a drive gear in contact with the gears, and a motor for driving the drive gear. In this way, the motor drives the drive gear that transmits its movement to the three gears coupled to the retention elements that rotate the dental implants in a solid and homogeneous way. This ensures that the outer surface of the dental implants inside the treatment chamber is illuminated with the LEDs in a homogeneous way.
    [0027] In some embodiments, the surface treatment device comprises at least one temperature sensor inside the treatment chamber to monitor the temperature inside the treatment chamber and therefore the temperature of the dental implants. In addition, the dental implant surface treatment device could comprise processing means that are configured to monitor, by means of the at least one temperature sensor, the temperature inside the treatment chamber, reduce the electrical current flowing through the LED diodes when the temperature inside the treatment chamber has reached a first preset temperature and increase the electric current that circulates through the LED diodes when the temperature inside the treatment chamber is below a second preset temperature. By varying the current flowing through the LED diodes, it is possible to vary the power emitted and therefore regulate the temperature inside the treatment chamber. Thus, the first preset temperature could be defined as the temperature above which dental implants could burn the patient's gum if they were placed at that time. Therefore, when this first preset temperature is reached, the power emitted by the LED diodes would be reduced to even turn them off completely. The second preset temperature would be defined as the temperature at which dental implants are cool enough to be implanted at that time. If this second preset temperature is reached inside the treatment chamber, the power emitted by the LED diodes could be increased. The first preset temperature is higher than the second preset temperature.
    [0028] As used herein, the term "processing means" can be broadly interpreted to include a central processing unit (CPU), a processor, microprocessor, an application-specific integrated circuit (ASIC), a logic, a programmable gate matrix, etc. The processes executed and the functional modules that make up the Processing means can be executed / formed by a single processor or can be divided between several processors.
    [0029] In some embodiments, the lid is curved into a predetermined curvature and is coupled to one of the three side walls allowing, for example, by a hinge. The curvature of the cap would facilitate the reflection of the UV light emitted by the LED diodes in such a way as to guarantee a homogeneous illumination of the external surfaces of the dental implants within the treatment chamber.
    [0030] In some embodiments, the dental implant surface treatment device has a rechargeable battery. For example, the device could have a USB connector for recharging the rechargeable battery. In other embodiments, the battery could be removable and could be recharged in an external charger.
    [0033] To complete the description and in order to improve understanding of the invention, a set of figures is provided. Said figures form an integral part of the description and illustrate different embodiments of the invention, which should not be construed as limiting the scope of the invention, but rather as examples of how the invention can be carried out.
    [0034] Figure 1 shows a perspective view of an example of a dental implant surface treatment device.
    [0035] Figure 2 shows a side view of the example of a dental implant surface treatment device of Figure 1.
    [0036] Figure 3 shows a plan view of an example of the support showing the elements that make up the turning mechanism of dental implants.
    [0037] Figure 4 shows a plan view of another example of a device for a dental implant surface treatment device in which the support is circular in shape and where the UV light beams emitted by the LED diodes are shown.
    [0040] Figure 1 shows a perspective view of an exemplary dental implant surface treatment device 100. It should be understood that the dental implant surface treatment device 100 depicted in Figure 1 may include additional components and that some of the components described herein they can be removed and / or modified without departing from the scope of the dental implant surface treatment device 100.
    [0041] The treatment device 100 comprises a central body 101 formed by three side walls 102 that define a treatment chamber 103 in the shape of a triangular prism. The three side walls 102 are joined to each other by flattened vertical edges 104 that define an elliptical profile that improves the reflection of the incident light, particularly the light coming from the LEDs 105. The treatment device 100 also comprises a support 106 on which is located the central body 101 and a cover 107 coupled to the upper mouth of the central body 101 that is attached to the central body by, for example, a hinge (not shown in this figure) to one of the side walls 102. The Cover 107 allows access to the interior of the treatment chamber for the insertion and extraction of dental implants 108. The treatment device 100 has two LED diodes 105 located on each of the three side walls 102 of the treatment chamber 103 radiating UV light onto the outer surface of the three dental implants 108. The geometric and reflective characteristics of the treatment chamber 103 facilitate a uniform distribution of UV light ensuring correct uniform photofunctionalization of dental implants 108.
    [0042] Dental implants 108 have, for example, a diameter of 4 mm and a length of approx. 11 ± 1 mm. The six LEDs 105 emit light in the UVC range (A <280 mm). The LEDs 105 are wired together in series to ensure that the same current flows through all of them and therefore they emit approximately the same light output. To overcome the voltage with which the LED diodes oppose the passage of current, a 48 Vdc power supply is used. This power source can be a rechargeable battery (not shown in this figure) that is inserted into the bracket 106 or it can be an external power source, for example, a 230 Vac plug-in switching power source. The rechargeable battery can be removable for recharging in an external charger or it can be charged through a connection with the USB port 112 that integrates the support 106. When the USB port 112 detects a voltage of 5 volts it enables the connection with the battery for your recharge. This power supply will power the processing means and associated circuitry (not shown) as well as the LEDs 105 themselves. The control means comprise a proportional integral and derivative (PID) controller, a linear current source responsible for circulating the required value of current by the six LEDs 105 and associated circuitry.
    [0043] The current that will flow through the LEDs 105 will have a value between 20% and 100% of the rated current of the LEDs 105. For example, if the rated current of the LEDs 105 is 25 mA, the current that circulating through the LEDs 105 will have an arbitrary value between 5 and 25 mA. The specific value of the current that flows through the six LED diodes 105 will be determined by the processing means based on the temperature inside the treatment chamber 103. Thus, the PID controller connects to up to three temperature sensors, for example Pt-100 type resistive temperature sensors located in shady places on the side walls 102, to monitor the temperature inside the treatment chamber 103. The PID controller could determine that the linear current source circulates the maximum current through the six LEDs 105 until the dental implants 108 reach a first preset temperature (for example, 35 ° C), and thereafter the current is reduced so that that temperature limit is not exceeded or lowered. When the temperature of the dental implants 108 drops below a second preset temperature (for example, 25 ° C), the PID controller could determine that the linear current source increases the current flowing through the six LEDs 105 until the dental implants 108 reach the first preset temperature.
    [0044] Alternatively, the treatment device 100 could integrate a manual current control means, for example, a control wheel connected to the linear current source, so that the implantologist could manually adjust the lighting within the treatment chamber. 103.
    [0045] The three dental implants 108 are fixed to retention elements 109 formed by a base 110 and a coupler 111. The coupler has an upper end in the shape of a screwdriver head on which the dental implant 108 is fixed, by pressing or threading. In turn, the lower end of the coupler 111 is a threaded stud that is inserted into a threaded hole in the base 110 so that the height of the coupler 111 can be adjusted with respect to the base 110. The base 110 is coupled to the support. 106, and more specifically to the portion of the support 106 corresponding to the treatment chamber 103. In an alternative embodiment, the retention elements 109 could be formed solely by the coupler 110 that would be attached directly to the support 106 through a threaded hole in the support and the corresponding threaded stud at the lower end of the coupler 111. The dental implants 108 are attached to the couplers 111 by the head of the dental implant 108 while Thus, the threaded portion of the dental implant 108 will be free so that the illumination along the perimeter of the threaded portion of the dental implant 108 is completely uniform.
    [0046] The treatment device 100 also comprises a reflective surface located on all the internal faces of the treatment chamber 103 to reflect the ultraviolet light emitted by the LEDs 105 towards the dental implants 108. Specifically, the reflective surface is placed on the internal faces of the three side walls 102, on the inner face of the cover 107 and on a portion of the upper face of the support 106 in correspondence with the treatment chamber 103. The Reflective surface is made of aluminum. Furthermore, the cover 107 is curved to define an oval profile to favor the reflection of UV light inside the treatment chamber 103.
    [0047] Although in this figure 1 a support 106 with quadrangular geometry is shown, the support 106 could have any other geometry such as, for example, a circular, triangular, rectangular geometry, etc.
    [0048] Figure 2 shows a side view of the dental implant surface treatment device of Figure 1.
    [0049] The two LEDs 205 on each side wall 202 are positioned at a height that corresponds to the location of the dental implants 205 in the treatment chamber 203 and covering the length of the dental implant 208. That is, one of the two LEDs 105 is positioned in correspondence with the upper end of the dental implant 208 and the other LED 205 is positioned in correspondence with the lower end of the dental implant 208. In this way the dental implant 208 receives direct radiation from the LED diodes 205 throughout its longitude.
    [0050] The cap 207 is curved to define a dome-shaped cavity that facilitates the reflection of the light beams from the LEDs 205 towards the dental implants 208. In addition, both the cap 207 and the side walls 203 and the portion of the support 206 located in correspondence with the treatment chamber 203 are covered with a layer of reflective material 212, the bases 210 and the couplers 211 of the retention means 209 being located within the treatment chamber 203 and on the layer reflective material 212.
    [0051] Figure 3 shows a plan view of an example of the support 306 in which the elements that make up the turning mechanism 313 of dental implants are shown. It should be understood that the support 306 depicted in FIG. 3 may include additional components and that some of the components described herein can be removed and / or modified without departing from the scope of the support 306.
    [0052] The turning mechanism 313 comprises a gear 314 coupled to each retaining element (not shown in this figure), a drive gear 315 in contact with the gears 314, and a motor (not shown) for driving the drive gear 315. Gears 314 have a shaft 316 that is coupled to the retaining means and more specifically to the bases of the retaining means. These shafts 316 pass through holes in the support 306 so that the bases are coupled to said shafts 316, being located inside the treatment chamber 303 and integrally attached to said shafts 316. The motor, which is powered by the power means (external power supply or internal battery) drives the drive gear 315 which transmits its movement to the three gears 314
    [0055] that rotate the retention elements about their own axial axes and, therefore, the dental implants. This turning mechanism 313 turns dental implants in a uniform and homogeneous way. This, together with the rounded edges 304 between the side walls 302 of the central body, ensures that the outer surface of the dental implants within the treatment chamber 303 is illuminated with the LEDs in a uniform and homogeneous manner.
    [0056] Figure 4 shows a plan view of another example of a dental implant surface treatment device 400 in which the holder 406 is circular in shape and where the UV light beams emitted by the LED diodes are shown. Although the bracket 406 shown is circular, the bracket 406 could have any shape that allows it to house the electronics and mechanics of the device.
    [0057] The three dental implants 408 are illuminated with direct beams from the LED diodes 405 coupled to the three side walls 402 of the central body 401. The dental implants 408 upon receiving the direct beam from the different LED diodes 405 deflect said beams generating secondary beams that are reflected in the side walls 402 and in the curved areas of the edges 404. Figure 4 also shows, in a purely illustrative way, that the light beams generated by the LEDs 405 inside the treatment chamber 403 are confined in the interior of the treatment chamber 403, the foci in which the secondary beams of generated within the chamber converge. Therefore, Figure 4 shows the direct illumination beams of the LEDs 405 and the first reflections corresponding to the secondary beams.
    [0058] The LEDs 405 are located in the central areas of the three side walls 402 and at a height corresponding to the height of the dental implants 408 within the treatment chamber 403. The dental implants 408 are located in correspondence with the rounded edges 404 of the treatment chamber 403 so that there is a dental implant 408 interrupting the direct beam between the LEDs 405 of every two adjacent side walls 402. In this way, it is impossible for the LED diodes 405 to be able to illuminate each other directly, generating an overheating of the LED diodes 405 that would reduce the efficiency of the surface treatment device 400 and shorten the useful life of said LEDs 405.
    [0059] The present dental implant surface treatment device that performs the photofunctionalization of dental implants by means of LED diodes has advantages over other solutions of the state of the art. By means of the design described, it is guaranteed that the dental implants inside the treatment chamber are illuminated uniformly over their entire surface, so that there are no “shadow areas.” Furthermore, elements containing mercury (Hg) are dispensed with. Through The use of LED diodes, which have a smaller size and electrical consumption than other light sources, facilitates the design of smaller, lighter, portable and autonomous treatment devices as they do not need to be plugged into the electrical network. LED diodes are also more robust and have a more comprehensive design than other light sources. It also allows you to adjust the intensity of the light applied to dental implants, either manually or depending on their internal temperature, to accelerate or slow down the photofunctionalization of dental implants, so that at no time the implant becomes heated to the point that its immediate placement on the patient causes discomfort, or even burns; without forgetting that above 40 ° C there is no osseointegration.
    权利要求:
    Claims (20)
    [1]
    1. A device for the surface treatment of dental implants, characterized in that it comprises:
    a central body formed by three side walls that define a triangular prism-shaped treatment chamber, the three side walls being joined together by rounded vertical edges and the treatment chamber being configured to house at least one dental implant;
    a support on which the central body is located;
    a cover coupled to an upper mouth of the central body to allow access to the interior of the treatment chamber;
    a plurality of LED diodes located on side walls of the treatment chamber that radiate ultraviolet light onto an outer surface of the at least one dental implant; Y
    a reflective surface located on internal faces of the treatment chamber to reflect ultraviolet light towards the at least one dental implant.
    [2]
    2. The device according to claim 1, wherein each side wall of the treatment chamber comprises two LED diodes.
    [3]
    The device according to claim 2, wherein the two LEDs on each side wall are located at a height that corresponds to a location of the dental implants in the treatment chamber and covering the length of the implant.
    [4]
    4. The device according to any one of the preceding claims, wherein the LEDs are connected to each other in series.
    [5]
    The device according to any one of the preceding claims, wherein the reflective surface is located on internal faces of the three side walls, on a lower face of the cover and on a portion of the upper face of the support in correspondence with the chamber treatment.
    [6]
    The device according to claim 5, wherein the reflective surface is made of a material whose reflectivity in the UVC range is equal to or greater than that of aluminum.
    [7]
    The device according to any one of the preceding claims, wherein the treatment chamber is configured to house three dental implants.
    [8]
    8. The device according to any one of the preceding claims, wherein the plurality of LEDs emits with a wavelength less than or equal to 280 nm.
    [9]
    The device according to claim 8, wherein the plurality of LED diodes emits with a wavelength of 278 nm.
    [10]
    The device according to any one of the preceding claims, wherein the dental implants are distributed within the treatment chamber in such a way that each dental implant interrupts a direct ultraviolet light beam between the LEDs of two adjoining side walls.
    [11]
    The device according to any one of the preceding claims, comprising retention elements for each dental implant inside the treatment chamber, the retention elements being coupled to the upper face of the support, where each retention element is configured to retain a dental implant.
    [12]
    12. The device according to claim 11, wherein the retention elements comprise means for adjusting the height of the retention elements with respect to the treatment chamber.
    [13]
    The device according to any one of the preceding claims, comprising a dental implant turning mechanism, the turning mechanism being coupled to the retention elements.
    [14]
    The device according to claim 13, wherein the rotation mechanism is configured to rotate the retaining elements in the axial direction.
    [15]
    The device according to any one of claims 13 or 14, wherein the turning mechanism comprises a gear coupled to each retaining element, a drive gear in contact with the gears and a motor for driving the drive gear.
    [16]
    16. The device according to any one of the preceding claims, comprising at least one temperature sensor inside the treatment chamber.
    [17]
    17. The device according to claim 16, comprising processing means configured to:
    monitoring, by means of the at least one temperature sensor, the temperature inside the treatment chamber;
    reducing an electric current flowing through the LED diodes when the temperature inside the treatment chamber has reached a first pre-established temperature; Y
    increase the electric current flowing through the LED diodes when the temperature inside the treatment chamber is below a second preset temperature.
    [18]
    18. The device according to any one of the preceding claims, wherein the cap is curved in a predetermined curvature and is rotatably coupled to one of the three side walls.
    [19]
    19. The device according to any one of the preceding claims, comprising a rechargeable battery.
    [20]
    20. The device according to claim 19, comprising a USB connector for recharging the rechargeable battery.
    1
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    同族专利:
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    引用文献:
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201930368A|ES2790048B2|2019-04-25|2019-04-25|SURFACE TREATMENT DEVICE FOR DENTAL IMPLANTS|ES201930368A| ES2790048B2|2019-04-25|2019-04-25|SURFACE TREATMENT DEVICE FOR DENTAL IMPLANTS|
    PCT/ES2020/070260| WO2020216979A1|2019-04-25|2020-04-24|Surface treatment device for dental parts|
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