Positioner kit for converting drills and dental implant installation wrenches of conventional surgical kits into guided surgery kits
The positioning kit converts conventional surgical kits into guided surgery kits using positioners for dental implant drills and wrenches, addressing compatibility issues and reducing costs by enhancing precision and efficiency in dental implant procedures.
Patent Information
- Application Number
- PCT/BR2025/050168
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-21
- Filing Date
- 2025-05-07
- Publication Date
- 2025-12-26
AI Technical Summary
Conventional surgical kits for dental implantology are not compatible with guided surgery procedures, relying heavily on operator skill and prone to technical errors, and guided surgery kits incur additional costs and complications.
A positioning kit that converts conventional surgical kits into guided surgery kits using positioners for dental implant drills and wrenches, providing simultaneous cursor, angle adjustment, and depth limitation functions, eliminating the need for manual drill guides and reducing material costs.
Enhances surgical precision, reduces costs, and improves procedural efficiency by optimizing conventional kits for guided surgery, minimizing human error and material waste while maintaining versatility for conventional methods.
Smart Images

Figure BR2025050168_26122025_PF_FP_ABST
Abstract
Description
Kit of positioners for converting dental implant installation drills and wrenches from conventional surgical kits into guided surgery kits. BRIEF SUMMARY
[0001] This patent application concerns a novel "POSITIONING KIT FOR CONVERTING DRILLS AND WRENCHES FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS." Specifically, the invention provides a solution to enable the use of conventional surgical kits for implantology as kits for guided surgery procedures through the developed positioners for dental implant drills and wrenches. Furthermore, GUIDED SURGERY KITS USING A HAND DRILL GUIDE are also supported by these positioners, as will be demonstrated throughout this descriptive report. FIELD OF APPLICATION
[0002] The present invention is aimed at the field of dentistry, particularly in the specialty of implantology, which deals with oral rehabilitation by restoring the masticatory and aesthetic function of the patient through the installation of a dental implant, which replaces the root of the lost tooth, and which will be connected to the prosthetic crown. BACKGROUND OF THE INVENTION
[0003] Implantology is the dental specialty that deals with oral rehabilitation by restoring the patient's chewing function and aesthetics through the installation of a dental implant, which replaces the root of the lost tooth and is connected to a prosthetic crown.
[0004] The placement of dental implants promotes solutions for people's health in both the physical and socio-emotional areas, through improvements in quality of life related to the vital ability to eat and self-esteem.
[0005] The history of implant dentistry is full of innovations, dating back to ancient civilizations. The Phoenicians and Egyptians used animal bones and ivory for implants. Replacing lost teeth. Romans and Greeks also sought solutions for tooth loss. Hippocrates called the replacement of lost teeth with other human teeth and animal teeth "dental implants." These primitive methods led to infections and complications.
[0006] In the 20th century, in the early 1950s, Per-Ingvar Brånemark, a Swedish orthopedic surgeon, investigated blood microcirculation in rabbit tibias using a titanium observation device. However, when he tried to remove the cylinder, he found that it wouldn't come out. Accidentally, he observed that the titanium and bone were perfectly fused without rejection. Brånemark's observation revolutionized the history of implantology. In 1965, he performed the first successful dental implant placement in a human being. He developed and expanded the use of titanium dental implants, and his concepts remain a reference to this day.
[0007] Nowadays, titanium and ceramic are the biocompatible materials used in implant dentistry. Technology is advancing rapidly in this area, which is growing every day in the pursuit of precise, ideal three-dimensional positioning of the dental implant to be installed, determined by aesthetics and effective masticatory function.
[0008] Computed tomography scans, digital scanning, digital planning, and 3D printing are part of the daily routine in modern implant dentistry. Guided surgery is a reality in many practices, and the promising future of implant dentistry follows this path.
[0009] Therefore, I cite Per-Ingvar Brânemark as inspiration, given the difficulties experienced by modern dentists. Many clinical challenges exist, and solutions are presented in the present patent application. Thus, new solutions are envisioned for implantology, this fascinating specialty that has always motivated research and is fully immersed in the digital age.
[0010] Faced with an industry that creates new products to generate excessive consumerism, where in the name of survival amidst fierce competition, a company creates a product that is not compatible with another company's product and the Professionals become "hostages" to the commercial structure. Just as Brânemark's observation made it possible to popularize the use of titanium dental implants, I see the current scenario as favorable for the democratization of knowledge: I was able to observe, perceive, and develop the Positioning Kit, which goes against the current trend. Regarding conventional surgical kits in relation to the invention.
[0011] Technically, a dentist who performs implantology procedures has a conventional surgical kit, and even if this professional is involved in guided surgery, the conventional surgical kit is still part of their arsenal because, in case of complications during surgery, it will be necessary to continue the procedure in a conventional manner.
[0012] In this way, the conventional surgical kit does not become obsolete, but is a "classic" and at the same time a "wild card," because the traditional way of working is always effective due to the scientific bases validated and consolidated over time.
[0013] Conventional Surgical Kits are defined as surgical kits developed for conventional surgeries, i.e., not designed for Guided Surgery. Note: the new Positioners are suitable for numerous Conventional Surgical Kits, regardless of the varying dimensions of the drills and dental implant installation wrenches available on the market or the surgical complexity.
[0014] This patent application proposes an innovation on the traditional approach, through the conversion of conventional surgical kits (various sizes available on the market) into guided surgery kits, using the presented Positioners. With these new Positioners, the conventional surgical kit becomes versatile and the surgical procedure is optimized.
[0015] "Positioners for dental implant drills and wrenches" are removable parts with interlocking systems that assist in guided surgeries, simultaneously functioning as cursors, angle guides, and depth limiters. STATE OF THE ART
[0016] Conventional implant surgery involves bone drilling using drills of varying sizes and gauges (thickness / diameter) to install the dental implant. The diameter, size of the dental implant, and bone characteristics (such as density) determine the surgical instrumentation, which is performed tactilely and visually by the surgeon.
[0017] Depth stops are parts (removable or built-in) that favorably assist the drilling procedure, but do not determine the positioning and angle of the milling cutter.
[0018] Dental implants are installed using specific keys in surgical beds created during drilling procedures. The keys are activated either motorized (using contra-angles coupled to surgical motors) or manually (using surgical ratchets).
[0019] During the surgical procedure, the professional needs to obtain the ideal three-dimensional positioning of the drilling and installation of the dental implant, performed manually in conventional surgery. The three-dimensional positioning of the implant in the alveolar ridge directly impacts the prosthetic rehabilitation in both aesthetic and functional terms.
[0020] By way of citing a state-of-the-art document, we present BR1 12019022762-8, concerning DENTAL IMPLANT, CONNECTION SCREW AND IMPLANTATION KIT, published on 05 / 19 / 2020, applicable in surgical and orthopedic dentistry, particularly implantology, specifically comprising devices for installing a dental prosthesis in place of a lost tooth, more precisely for dental implants. Dental implant for installation in the mandibular bone, consisting of the base part, the abutment and the connection screw, the shaft of the connection screw is stepped and its lower part to the thread of the shaft has a diameter that does not exceed the internal diameter of the abutment thread and the distance from the screw head to the upper end is less than the distance along the axis of the screw head to the abutment support thread by 0.1 -1 mm (optimally 0.2-0.3 mm). Dental implant placement kit according to Claim 1, consisting of the implant base, abutment and auxiliary elements, as it contains a set of connecting screws with a screw pitch corresponding to the abutment size for implanting the prosthesis for patients with higher, medium and lower gingival heights.
[0021] This document, which is a PCT of Russian origin, states in its content that, "the structure of dental implants and the peculiarities of the implementation of their constituent elements are covered by several hundred patents from various countries (RU 2602678, 2016; RU 2567596, 2014; RU 2485910, 2012; US 2005 / 0287497, 2005; l / l / O 03020154, 2003; DE 10315399, 2004; EP 1728486, 2006; l / l / O 97 / 20518, 1997; WO 96 / 29020, 1996 and others)."
[0022] All related documents do not possess the characteristics of the present invention, namely, enabling the use of conventional surgical kits for implantology as kits used in guided surgical procedures through positioners developed for drills and wrenches for installing dental implants. Problems, deficiencies, or disadvantages of the state of the art in conventional surgery that are overcome by the proposed invention.
[0023] The professional must master the conventional surgical technique; however, this technique has many limitations, as it depends on the operator's skill, and often the existing surgical difficulties can result in unfavorable compensation in the prosthetic phase.
[0024] To the human eye, the ideal positioning of the dental implant may appear to have been achieved, but errors can occur due to the perspective of a particular angle during the surgical procedure.
[0025] On the other hand, guided surgery aims to minimize technical errors, reduce surgical time, increase the comfort of both the professional and the patient, and improve the postoperative period.
[0026] Thus, the proposal to convert the conventional surgical kit into a guided surgery kit, through the use of innovative positioners, has great potential. The advantages of guided surgery are both technical (with simultaneous cursor, angle adjustment, and depth limitation functions) and financial, since the surgeon already owns the conventional kit.
[0027] Even if, for some reason, the surgery is not performed in a guided manner, the presented Positioning Kit also has the versatility to be used in the conventional surgical method as a limiter of the drilling depth and to limit the depth of dental implant placement. Furthermore, the Positioners for drills also have an advantage over traditional "stops" because they have external diameters similar to the external diameters of the dental implants planned for placement. This facilitates understanding the final positioning of the implant in relation to the bone crest (mesio-distal and vestibulo-buccal / lingual directions) from the first perforations. This advantage allows the surgeon to verify if the diameter of the chosen implant is favorable.If you notice any need regarding the space in the alveolar ridge, you can decide to change the implant diameter during the first surgical drilling. State of the Art in Guided Surgery
[0028] In Guided Surgery, procedures are not performed "freehand," as in conventional surgery, but through the creation of a surgical guide using 3D printing. The procedure is performed in a three-dimensionally guided manner with the aim of increasing precision and accuracy to minimize human error.
[0029] Guided surgery is a surgical procedure that uses reverse planning, provided by digital planning, to determine the ideal positioning of the dental prosthesis, which then determines the ideal positioning of the dental implant in the alveolar ridge.
[0030] After achieving the ideal positioning of the dental implant, it is possible to digitally design the surgical guide, which will be customized to fit into the oral cavity and guide the surgical procedures (aiming for final prosthetic rehabilitation with previously planned aesthetics and function).
[0031] The surgical guide has pre-designed hole(s) for the passage of drills and keys for installing the dental implant(s). The printed surgical guide is installed in the oral cavity, in the area of interest for which it was planned and manufactured.
[0032] In guided surgery procedures, the professional must have, in addition to the Guided Surgery Kit, the corresponding Conventional Surgical Kit (to be used in the conventional surgical method) for use in case of complications, such as difficulties in opening the patient's mouth (due to the long drills used in certain guided surgery kits) and problems with the surgical guide.
[0033] This guided surgery technique requires digital planning, performed using specific software that receives files from CT scans, scans, and photographs to create a reverse plan for guided surgery.
[0034] The following accessories and tools are required: printed surgical guide to be fitted or fixed in the patient's mouth (without metal washers); or surgical guide in the oral cavity (with metal washers / rings installed in the perforations of the surgical guide); manual drill guide; depth limiters (sfops); guided surgery drill with retention system for depth limiter: uses depth limiter and manual drill guide; guided surgery drill without retention system for depth limiter: uses manual drill guide; guided surgery drill that has a built-in depth limiter and does not use a manual drill guide; installation wrenches for the guided surgery kits.
[0035] Regarding the manual drill guide (Handle Drill), it refers to the set of manual drill guides (Handle Drills) which consists of surgical parts designed to fit into the perforation(s) of the surgical guide and serve as guides for the drills. They have varying external diameters to fit according to the perforations in the surgical guides / washers and They have varying internal diameters to accommodate milling cutters of different gauges (thicknesses / diameters).
[0036] The operator holds the hand drill guide with one hand and inserts it into the hole in the surgical guide, while with the other hand they hold the contra-angle handpiece with the selected drill bit attached to perform the drilling.
[0037] As for depth limiters (stop drills), these determine the planned drilling depth, come in various diameters, and are removable.
[0038] The installation keys for guided surgery kits carry the dental implants and install them in a guided manner into the surgical beds created by the drilling procedures. The keys are activated either motorized (using contra-angles coupled to surgical motors) or manually (using surgical ratchets).
[0039] The installation keys for dental implants in Guided Surgery Kits are thicker than those in conventional surgical kits because they fit snugly through the perforations / inner faces of the washers installed on the surgical guides. List of problems, deficiencies, or disadvantages of the state of the art of guided surgery that are overcome by the proposed invention.
[0040] Guided surgery kits generate an additional cost for the professional who, without exception, needs to have a corresponding conventional surgical kit in case of complications, such as, for example, difficulties in opening the patient's mouth and problems with the surgical guide.
[0041] The proposal to convert the conventional surgical kit into a guided surgery kit through the use of innovative positioners (with simultaneous functions of cursors, angle adjustments, and depth limiters) has significant technical advantages stemming from guided surgery, as well as financial advantages, since the surgeon already possesses the conventional kit. This invention facilitates the drilling procedure for Guided Surgery kits that utilize manual drill guides (Handle Drills) and will eliminate the need for them as a result of this invention.
[0042] The main objective of this patent application is the use of conventional surgical kits for implantology as kits used in guided surgery procedures, through the positioners developed for conventional dental implant drills and wrenches. Furthermore, GUIDED SURGERY KITS USING HAND DRILL GUIDES are also covered by these positioner models, which stand out because they no longer require the use of HAND DRILL GUIDES.
[0043] As a consequence of the characteristics described in the previous paragraph, surgical optimization is achieved through the positioning models presented for drills: using the same models developed for conventional surgical kits, but with the necessary adjustments for the drills in guided surgery kits.
[0044] Other advantages relate to the practicality of using the new positioners compared to using manual drill guides, including the benefit of the surgeon having one hand free to provide support during the procedure.
[0045] Furthermore, eliminating the manual drill guide (Handle Drill) improves surgical technique because if the surgeon moves it during the procedure, the drill's path will shift, differing from what was digitally planned.
[0046] Another direct consequence is the reduction in costs, through the use of the presented positioner models for milling cutters, which allow the elimination of the manual milling cutter guide assembly (Handle Drill).
[0047] Among the important costs to be considered, we highlight the costs associated with using guided surgery kits that utilize manual drill guides available on the market: the financial cost of the manual drill guide assembly, the environmental cost due to the amount of metallic material used in the manual drill guide assembly, and the cost of auxiliary personnel to stabilize the surgical guide, since the surgeon needs to use both hands during the procedure, one to hold the manual drill guide and the other to drill.
[0048] We will now proceed with a brief - succinct - comparison between conventional milling cutters and kits in relation to the Positioner Kit of the present invention, in order to clarify other aspects related to the advantages and improvements obtained. Regarding the guided surgical drill with retention system for depth limiter: it uses a depth limiter and a manual drill guide (Handle Drill).
[0049] The drill system developed for guided surgery is larger than the corresponding drill system used in conventional surgery. The increased length of this drill system presents a disadvantage, making it difficult or impossible to use in certain surgical situations with limited space, such as access for patients with insufficient mouth opening.
[0050] The drill system developed for guided surgery that requires the use of a manual drill guide (Handle Drill) has disadvantages such as: the need for the surgeon to use both hands, thus making it mandatory to have another professional to assist in the surgery; the risk of movement of the manual drill guide (Handle Drill) during the surgical procedure, which would lead to changes in the positioning and angulation of the planned drilling path; and the cost of the tool.
[0051] This system of drills generates an additional cost for the professional who inevitably needs to have a corresponding conventional surgical kit in case of complications, such as: difficulties in opening the patient's mouth and problems with the surgical guide.
[0052] The new conventional drill positioner with depth limiter fitting can be used with drills from the guided surgery kit that have a depth limiter fitting (obeying the size compensation, as it has a different length than the conventional drill), according to the invention, and has the advantage of eliminating the use of a manual drill guide (Handle Drill). Regarding the guided surgical drill without a retention system for depth limiter: it uses a manual drill guide (Handle Drill).
[0053] The drill system developed for guided surgery is larger than the corresponding drill system used in conventional surgery. This guided surgery drill system, without a depth limiter retention system, has the disadvantage that the operator has to work with visual attention in a surgical scenario bordering on the millimeter scale, with increased difficulty in the case of surgical procedures with a limited field of vision (example: posterior regions of the oral cavity).
[0054] The drill system developed for guided surgery that requires the use of a manual drill guide (Handle Drill) has disadvantages such as: the need for the surgeon to use both hands, thus making it mandatory to have another professional to assist in the surgery; the risk of movement of the manual drill guide (Handle Drill) during the surgical procedure, which would lead to changes in the positioning and angulation of the planned drilling path; and the cost of the tool.
[0055] This system of drills generates an additional cost for the professional who needs to have a corresponding conventional surgical kit in case of complications, such as: difficulties in opening the patient's mouth and problems with the surgical guide.
[0056] The new conventional drill positioner without a depth limiter retention system, according to the present invention, can be used with drills from the guided surgery kit without a depth limiter retention system (obeying the size compensation, as it has a different length than the conventional drill) and presents the following advantages: elimination of the use of the manual drill guide (Handle Drill) and presence of the depth limiter (safety in drilling with a very important improvement in visualization). Regarding the guided surgical drill that has a built-in depth limiter and does not use a manual drill guide (Handle Drill).
[0057] This system of drills generates an additional cost for the professional who needs to have a corresponding conventional surgical kit in case of complications, such as: difficulties in opening the patient's mouth and problems with the surgical guide. It has the disadvantage of increasing the cost of the material used: metal incorporated into the drill bit.
[0058] Additional advantage of the new positioners for drills, according to the present invention: financial. The optimization of the conventional surgical kit, through the use of the new positioners, eliminates the following costs: acquisition of the professional-guided surgery kit; manufacturing of this drill model with bulky incorporated metallic material; environmental. Regarding the installation keys for guided surgery kits.
[0059] These keys carry the dental implants and install them in a guided manner in the surgical beds created by the drilling procedures. The keys are activated either motorized (using contra-angles coupled to surgical motors) or manually (using surgical ratchets).
[0060] The installation keys for dental implants in guided surgery kits are thicker than those in conventional surgical kits because they fit snugly through the perforations / inner faces of the washers installed on the surgical guides.
[0061] Many times the drilling and installation procedures for dental implants go smoothly; however, in certain guided surgery kits, a lot of time is lost in the various attempts to remove the installation key. In some kits, the retention of the dental implant installation key in the ring fixed to the surgical guide is so great that the attempt to remove this key becomes a tense moment during the surgical procedure, causing an increase in stress levels for both the surgeon and the patient.
[0062] Often, when removing the installation key, the surgeon needs to look for other instruments to help remove the retained installation key, which can lead to risks of complications, accidents, and muscle fatigue caused by the time and / or amplitude of the patient's mouth opening.
[0063] There are some abrupt movements when attempting to remove the installation key, such as shaking the piece to loosen it, which causes the patient's head to shake. This negative experience is a serious problem that frequently occurs in various kits and directly affects the emotional well-being of both the professional and the patient.
[0064] The guided surgery kit generates an additional cost for the professional who needs to have a corresponding conventional surgical kit in case of complications, such as problems with the surgical guide.
[0065] The installation keys for guided surgery kits have the disadvantage of increasing the cost of the material used: metal incorporated into the installation keys.
[0066] Advantages of the new Positioners for Installation Keys: ease of removal of the dental implant installation key from the surgical guide ring / drilling; financial. By optimizing the conventional surgical kit through the use of new / unprecedented Positioners, the following costs are eliminated: acquisition of the guided surgery kit by the surgeon; manufacturing of this key model with bulky incorporated metal material; environmental. GENERAL DESCRIPTION OF THE INVENTION
[0067] The KIT OF POSITIONERS FOR CONVERTING DRILLS AND INSTALLATION KEYS FOR DENTAL IMPLANTS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, the subject of this patent application, comprises a box identified with letters on the horizontal part of said box, so that they correspond to Positioners according to the drills, installation keys and accessory rings for the drill shanks.
[0068] The horizontal column of said box is used to record the depths of perforations, installation depths, and thicknesses of accessory rings (variations according to the manufacturer of the surgical kit to be used).
[0069] On the other hand, the vertical column of the aforementioned box is used for recording the diameters of the milling cutters and the diameters of the dental implants to be fitted into the... Installation keys and diameters of accessory rings (variations according to the manufacturer of the surgical kit to be used). DESCRIPTION OF THE DRAWINGS
[0070] The invention will now be described in greater detail, and for better understanding, reference will be made to the attached drawings, in which the following are represented: Fig. 1: Top view of the Kit box with the positioners inside; Fig. 2: Perspective view of the Kit box with the positioners; Fig. 3: Perspective view of the Kit with the lid removed; Fig. 4: Top perspective view of the positioners that are housed inside the box; Fig. 5: Bottom perspective view of the positioners that are housed inside the box; Fig. 6: Plan view of the various components used in surgeries; Fig. 7: Illustrates a conventional milling cutter positioner with fitting, equipped with a depth limiter with cutouts on the sides, irrigation window and conventional retainer; Fig. 8: Illustrates a conventional drill positioner with a fitting, in a version where the cylinder is only the inner part of the surgical guide and the retainer is also the stop; Fig. 9: Illustrates a split positioner assembly for a conventional milling cutter with a fitting; Fig. 10: Illustrates positioners for conventional milling cutters with a smaller diameter than the shank (integrated interference retention for fixing to the shank); Fig. 11: Illustrates a positioner for a conventional milling cutter that is smaller than the shank (O-ring retention for fixing to the shank); Fig. 12: Illustrates space-filling rings and depth limiters for the rod; Fig. 13: Illustrates positioners for a conventional milling cutter with a diameter greater than the shank (integrated interference retention for fixing to the shank); Fig. 14: Illustrates a positioner for the guided surgery kit drill bit with attachment; Fig. 15: Illustrates a positioner for the guided surgery kit drill with fitting, in which the cylinder is only the inner part of the guide and the retainer is also the stop; Fig. 16: Illustrates a positioner with a stop for a long installation key for a contra-angle handpiece; Fig. 17: Illustrates a free positioner for a long installation key for a contra-angle handpiece; Fig. 18: Illustrates a positioner with a stop for a short ratchet installation key (modified); Fig. 19: Illustrates a free positioner for a short ratchet installation key (modified); Fig. 20: Illustrates a positioner with a stop for a long ratchet installation key (modified); Fig. 21: Illustrates a free positioner for a long ratchet installation key (modified); Fig. 22: Illustrates a positioner with a stop for a short ratchet installation key (locking with teardrop-shaped interference fits for hemispheres); Fig. 23: Illustrates a free positioner for a short ratchet installation key (locking with teardrop-shaped interference fits for hemispheres); Fig. 24: Illustrates a positioner with a stop for a long ratchet installation key (locking with teardrop-shaped interference fits for hemispheres); Fig. 25: Illustrates a free positioner for a long ratchet installation key (locking with teardrop-shaped interference fits for hemispheres); Fig. 26: Perspective view of milling cutters available on the market; Fig. 27: Perspective view of dental implant installation wrenches available on the market; Fig. 28: Illustrates an example of surgery, showing the drill positioner, the surgical guide, and the lower arch without the tooth; Fig. 29: Illustrates, in sequence, the surgical guide fitted into the oral cavity for instrumentation and use of positioners for drilling and installation of dental implants; Fig. 30: Illustrates, in sequence, the positioner fitted into the surgical guide, which in turn is fitted into the oral cavity; Fig. 31: Illustrates, in sequence, the guide and positioner for the milling cutter in place; Fig. 32: Illustrates the milling cutter positioner in operation, using a contra-angle handpiece; Fig. 33: Illustrates the milling cutter used in the contra-angle handpiece for the drilling procedure; Fig. 34: Illustrates, in sequence, the positioning of the implant installation key for the contra-angle handpiece in function during the surgical procedure; Fig. 35: Illustrates a positioner for implant installation key for ratchet wrench during the surgical procedure. DETAILED DESCRIPTION OF THE INVENTION
[0071] The KIT OF POSITIONERS FOR CONVERTING DRILLS AND INSTALLATION KEYS FOR DENTAL IMPLANTS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, the subject of this patent application, comprises a box (C1) with letters on the horizontal part of said box (C1) that correspond to the models of the positioners (P1) according to the drills (F1), the installation keys (C2) and the accessory rings (A1) for the drill shanks. On the other hand, the horizontal column in the box (C1) is used for recording the drilling depths, installation depths and thicknesses of the accessory rings (variations according to the manufacturer of the surgical kit to be used).
[0072] The vertical column in the box (C1) is used for recording the diameters of the drills (F1), the diameters of the dental implants (I) to be fitted into the installation keys (C2), and the diameters of the accessory rings (A1) (according to the manufacturer of the surgical kit to be used).
[0073] Let's look at the letter indications on the horizontal part of the box (C1), namely: - (A): Positioners for conventional milling cutters that have a depth limiter fitting; - (B): Positioners for conventional milling cutters that are less thick (less caliber, with a smaller diameter) than the shank and without a retention system for depth stop; - (C): Positioners for conventional milling cutters that are thicker (have a larger diameter) than the shank and without a retention system for depth stop; - (D): Positioners for guided surgery kit drills that have a depth limiter fitting (these use the same models as conventional drill positioners that have a depth limiter fitting, however, they have specific dimensions according to the size compensations of guided surgery drills from various manufacturers); - (E): Positioners for long installation wrench for contra-angle handpiece; - (F): Positioners for short installation key for “modified” ratchet (making a groove in the ratchet key to fit into the interference existing on the inside of the Positioner - locking the Positioner in the ratchet key prevents the Positioner from rotating); - (G) - Positioners for long installation wrench for “modified” ratchet (making a groove in the ratchet wrench to fit into the interference existing on the inside of the Positioner - locking the Positioner in the ratchet wrench prevents the Positioner from rotating); - (H): Positioners for short ratchet installation key (locking with teardrop-shaped interference rings for hemispheres - interference rings on the inside of the positioners prevent them from rotating); - (I): Positioners for long installation wrench for ratchet (locking with teardrop-shaped interferences for hemispheres - interferences on the inside of the Positioners prevent them from rotating). - (J): Elastic interference fit retaining rings and O-rings (elastic rings).
[0074] According to Figure 6, a Kit according to the invention may contain, inside, a conventional drill positioner with fitting (10), a conventional drill positioner with fitting (smallest possible size according to the height of the perforation in the surgical guide) (11), an external part to the guide of the split conventional drill positioner with fitting (12), an internal part to the guide of the split conventional drill positioner with fitting (13), a connected split positioner assembly for conventional drill with fitting (the split model also applies to the other drill positioners in this Kit) (14), a conventional drill positioner with a smaller diameter than the shank (incorporated interference retention for fixing to the shank, so that the positioner does not fall off the drill) (15), a conventional drill positioner with a smaller diameter than the shank (incorporated interference retention for fixing to the shank,so that the positioner does not fall off the drill) - smallest possible size according to the height of the perforation in the surgical guide (16), an O-ring for retention (17), an elastic ring used in conjunction with a conventional drill positioner that is less caliber than the shank (O-ring retention for fixation on the shank, so that the positioner does not fall off the drill) (18), an incorporated elastic interference retention ring (19) - space filler and depth limiter used on the drill shank in conjunction with components (23) and (24), an incorporated elastic interference retention ring (20) - space filler and depth limiter used on the drill shank in conjunction with components (23) and (24), O-ring (21) - space filler and depth limiter elastic ring used on the drill shank in conjunction with components (23) and (24),an O-ring (22) - space-filling and depth-limiting elastic ring used on the milling cutter shank in conjunction with components (23) and (24), a conventional milling cutter positioner assembly with a diameter greater than the shank (23) (incorporated interference retention for fixing to the shank so that the positioner does not fall off the milling cutter) and a depth stabilizer ring used on the shank (e.g., 1.0 mm), a conventional milling cutter positioner with a diameter greater than the shank (24) (incorporated interference retention for fixing to the shank so that the positioner does not fall off the milling cutter) - smaller, Possible size according to the height of the perforation in the surgical guide, a positioner for the guided surgery kit drill with fitting (25), a positioner for the guided surgery kit drill with fitting (26) - smallest possible size according to the height of the perforation in the surgical guide, a positioner with stop for long installation key (27) for contra-angle, a positioner without stop (free) for long installation key (28) for contra-angle, a positioner with stop for short installation key for ratchet (modified) (29), a positioner without stop (free) (30) for short installation key for ratchet (modified), a positioner with stop for long installation key for ratchet (31) (modified), a positioner without stop (free) for long installation key for ratchet (32) (modified),a stopper positioner for short ratchet installation wrench (33) (locking with drop-shaped interferers for hemispheres on the inside of the positioner), a stopless (free) positioner for short ratchet installation wrench (34) (locking with drop-shaped interferers for hemispheres on the inside of the positioner), a stopper positioner for long ratchet installation wrench (35) (locking with drop-shaped interferers for hemispheres on the inside of the positioner), a stopless (free) positioner for long ratchet installation wrench (36) (locking with drop-shaped interferers for hemispheres on the inside of the positioner), letters (37) on the horizontal part of the box correspond to the positioner models according to the milling cutters, the installation wrenches and the accessory rings for the milling cutter shanks,The horizontal column (38) in the box is used for recording drilling depths, installation depths and thicknesses of accessory rings (variations according to the manufacturer of the surgical kit to be used), the vertical column (39) in the box is used for recording the diameters of the drills, diameters of the dental implants to be fitted into the installation keys and diameters of the accessory rings (according to the manufacturer of the surgical kit to be used), in addition to space in the box reserved for other relevant data (40).
[0075] According to the invention, in the box (C1), the positioners (P1) for milling cutters (F1), the positioners (P1) for dental implant installation keys (C2) and the accessory rings (A1) are inserted according to how they will be captured, by the milling cutters or by the installation keys.
[0076] According to the invention, the insertion axis for capturing most of the positioners (P1) for milling cutters (F1) occurs in the direction from the active tip of the milling cutter to the shank, except for the positioners (23) and (24) and the rings (19), (20), (21) and (22), as these are captured in the direction from the shank to the active tip of the milling cutter.
[0077] The insertion axis for capturing the positioners (P1) for dental implant installation keys (C2) is in the direction of the tip of the installation key.
[0078] Regarding the positioners (P1), these were developed for various models of drills and installation keys of conventional surgical kits. Each manufacturer available on the market will use the positioner model(s) according to the drill model(s) and installation key(s) they have. Thus, with the use of the new positioners (P1), conventional surgical kits will be optimized and used in guided surgeries.
[0079] Nevertheless, the drill positioners for conventional kits also benefit guided surgery kits (with their due compensations according to the drill sizes) that use manual drill guides (Handle Drills), as they provide the elimination of these accessories. Each manufacturer available on the market will use the drill positioner model(s) (P1) according to the model(s) they have, such as: positioners (25) and (26) for the guided surgery drill.
[0080] Positioners (10) and (11) (Positioners for conventional drills with fittings) are the same models as positioners (25) and (26), respectively, (positioners for drills from guided surgery kits with fittings), however the latter have different lengths due to the compensations existing for the guided surgery drills of certain kits.
[0081] Regarding the split components (12), (13) and (14), these can be used in two ways: in the first option, the positioning assembly (14) is formed by fitting components (12) and (13); that is, the assembly (14) is fitted and captured by the drill (first (12) and then (13)), to then be taken to the surgical guide. The other way of using it occurs by fitting component (13) into the surgical guide before capturing component (12) with the drill. Component (12) fitted into the drill is taken towards the surgical guide to meet component (13) to make the connection (14), aiming at directing the drill and limiting the drilling depth.
[0082] It should be clarified that, in the case of the split positioner (14), component (13) can be used in conjunction with component (12) of varying lengths, provided they have compatible diameters for the fittings. This generates an economic advantage.
[0083] With regard to the positioning component (13) of the split positioning assembly (14), it features a passage (P4) in one of the flanges of the stop for attaching a wire. Thus, if the positioner (13) falls into the oral cavity, the attached wire will serve to retrieve it, this serves as a safety measure to prevent accidents such as choking, swallowing or aspirating the positioner.
[0084] Positioner models may have two-part models, according to their particular characteristics, as in the example of the positioner for reference milling cutter (14) having been developed from the model of the positioner for reference milling cutter (10).
[0085] Regarding the new elastic retention rings with incorporated interference (19 and 20), they are used on the milling cutter shank to fill any space that may exist between the milling cutter positioner and the contra-angle (CA) or the milling cutter extension. They promote the stability of the positioner and prevent it from moving.
[0086] In other words, the incorporated elastic interference retaining rings are one of the main innovations in this positioner kit. The existing elastic interferences They replace O-rings (elastic rings) (A1) which are commonly used in various situations.
[0087] The elastic interferences created for the drill positioners (P1) of models (15), (16), (23) and (24), for conventional drills without retention interferences, also work for guided surgery drills without retention interferences with their respective size compensations.
[0088] Regarding the retention devices developed for the installation keys (C2) of conventional dental implant kits, according to the invention, these are solutions to be used according to the various models and sizes of installation keys available on the market, both in models for contra-angles and in models for surgical ratchets. Regarding the Characteristics of Milling Cutter Positioners.
[0089] The components are as follows: Retainer, Outer cylinder to the guide, Irrigation cutout, Stop, and Inner cylinder to the guide, namely: 1) Interference seal:
[0090] The retainer is intended to securely and stably fix the milling cutter positioner (P1) so that it can perform its function. The milling cutter positioner must be captured in the housing by sliding, positioned until the end of the fitting, and must not fall out, and must be easily removed after performing its function.
[0091] Positioners for conventional drills that already have fittings (or interference stops) for depth limiters can use the same retention system available on the market and the same cylinder model with irrigation cutout (such as, for example, Positioner 10). For these drills, the innovation that this new positioner kit brings is the addition of the stop (B1) on the outer surface of the cylinder. The cylinder now has an outer part (C3) to the surgical guide (G1) and another inner part (C4) to the same (the inner part provides the connection of the positioner with the surgical guide (G1)).
[0092] For other conventional milling cutter positioners that do not have positioner fittings, the great innovation lies in the retainers (R2) developed in the elastic interference fit model. These retainers (R2) made it possible to develop positioner models for these milling cutters, which were previously unavailable.
[0093] As previously mentioned, this Kit also includes the O-ring retained positioner (18) (elastic ring - a common accessory on the market).
[0094] Regarding the positioners for guided surgery drills that already have a fitting (or interference fit) for the depth limiters (stops), they can use the same retention system available on the market and the same cylinder model with irrigation cutout (for example, the Positioner (25)). For these drills, the innovation that this new positioner kit brings is the union of the depth limiters (stops) with the component of the manual drill guide (Handle Drill) guided to the ring / perforation in the surgical guide (G1). The depth limiter (stop) becomes the outer cylinder (C3), the ring (circular part of the Manual Drill Guide (Handle Drill) connected to the penetrating part in the surgical guide and to the rod that the surgeon holds) of the Manual Drill guide (Handle Drill) becomes the stop, and the penetrating part of the manual drill guide (Handle Drill) in the ring / perforation of the surgical guide becomes the inner cylinder (C4) in the surgical guide.
[0095] For other positioners for guided surgery drills that do not have a positioner fitting, the major innovation lies in the retainers developed with an incorporated interference fit elastic model. These retainers enabled the development of positioner models for these drills, which were previously unavailable.
[0096] The kit according to the invention also features a positioner model retained by an O-ring (elastic ring - a common accessory on the market); 2) External cylinder (C3) (external part of the surgical guide).
[0097] According to the present Kit, the positioners (10), (11), (25) and (26) can use the models available on the market, for example; 3) Irrigation cutout (R5) present in the outer cylinder (C3) (so that the jet of saline solution from the contra-angle handpiece promotes cooling of the drill and surgical area); 4) Stop (B1) (depth limiter of the Positioner when it is introduced into the surgical guide perforation); the active parts of the drills need to have the same perforation capacity in the surgical sequence, therefore, the location (established height) of the stop of a positioner for a drill must be in the same location as the stop of the next positioner to be used on the following drill. The stop (B1) is positioned according to the height of the washer or the top of the perforation in the surgical guide (G1); 5) Inner cylinder (C4) (located at the base of the Positioner, penetrates the inner part of the surgical guide as a connector).
[0098] The inner cylinder (C4) of the surgical guide connects the positioner to the surgical guide, thus placing the drill bit in the ideal location, angle, and three-dimensional orientation, according to the previously performed virtual planning, for the bone drilling procedure.
[0099] It should be noted that the positioners (11), (16), (24) and (26) only have the inner cylinders (C4) with irrigation cutouts (R5) and the retainers also have stop functions.
[0100] Regarding the dimensional relationships between diameters and heights, it is worth highlighting: - Diameters:
[0101] a) variations in the external diameter.
[0102] External cylinder (C3): depending on the implant diameter, it can also be based on the drill diameter (according to depth limiters / sfops available on the market).
[0103] Inner cylinder (C4): according to the implant diameter.
[0104] b) variations in internal diameter: according to the diameter of the milling cutter. - Lengths / heights:
[0105] a) the lengths / heights of the positioners (10), (11), (14), (15), (16), (18), (23) and (24): sum of the retainer part to the size of the active part of the milling cutter and less the desired drilling depth (similar to the depth limiter / stop size of the Conventional Surgery Kit). The stop (B1) is positioned according to the height of the washer or the top of the drilling in the surgical guide (G1). In positioner models (11), (16) and (24) the retainers become the Stops (B1). Positioner model (18) can also have a reduced size like (11), (16), (24) and (26).
[0106] In other words: total length = depth limiter of the conventional surgical kit with its stop retainer.
[0107] b) the length / height of the positioner (25): sum of the depth limiter with its retainer (stop of the Guided Surgery Kit which has compensated length), plus the component of the hand drill guide (Handle Drill) which is positioned on the washer (cylinder positioned on the inside of the surgical guide) and its outer ring on the surgical guide (which becomes the Stop - depth limiter).
[0108] In other words: total length = depth limiter of the guided surgery kit with the retainer (stop) + the ring and the cylindrical part of the hand drill guide (Handle Drill'. stop + inner cylinder in the surgical guide).
[0109] c) the length of the Positioner (26): height of the component of the hand drill guide (Handle Drill) that is positioned in the washer (cylinder positioned on the inside of the surgical guide) and its outer ring on the surgical guide, which becomes the stop (depth limiter) next to the retainer. In the positioner model (26) the retainer becomes the stop (B1). The retainer, the outer ring of the hand drill guide (Handle Drill) and the stop become the same component of this Positioner (26).
[0110] In other words: total length = depth limiter of the guided surgery kit with the retainer (stop) or ring and the cylindrical part of the hand drill guide (Handle Drill'. stop + inner cylinder in the surgical guide).
[0111] The lengths of the Positioners (12) and (13) that form the assembly (14): P1 (12): size of C3 + retainer; P1 (13): C4 size + stop + extension for fitting and stability of P1 (12).
[0112] The Positioners (12) and (13) that form the set (14) can be used for guided surgery drills, with the appropriate size compensations. Characteristics of Positioners for Implant Installation Keys.
[0113] The components are as follows: Retainers, Cylindrical Body with millimeter markings - advance lines (LA) -, stops (present in some models) and markings or spheres for indexing (El) (present when covered by the Positioners on the installation keys).
[0114] 1) Interference seal.
[0115] The retainer is intended to securely and stably fix the positioner to the dental implant installation key so that it can perform its function. The implant installation key positioner must be captured in the case by sliding, positioned until the end of the fitting, must not fall out, and must be easily removed after performing its function.
[0116] 1.1) Elastic interference retention in the implant installation key: Example: long key for contra-angle: interference in the key body, Positioners (27) and (28); 1.2) Retention due to internal interference in the Implant Installation Key: Example: (short and long) keys for ratchet.
[0117] 1.2.1) Presence of a vertical linear interference in the inner part of the fitting region of the Positioner with the implant installation key: Example: Positioners (29), (30), (31) and (32), which have linear tool lock (TF) and internal retainer (RI).
[0118] In this case, linear wear is promoted with a cylindrical burr in the specific region of the implant installation key (which is then called a "modified" key).
[0119] 1.2.2) Presence of 3 (three) to 6 (six) interfering elements (drop-shaped locks for hemispheres (TG)) on the inside of the ratchet wrench positioner for fitting onto the indexing spheres in the ratchet wrench body: Examples: Positioners (33), (34), (35) and (36).
[0120] 2) Cylindrical body with millimeter markings - advance lines (LA) - along the outside.
[0121] 3) Stop (depth limiter for the positioner when it is inserted into the surgical guide hole).
[0122] 3.1) With Stop.
[0123] Positioner for dental implant installation keys with depth limiter stop: used when establishing the standard or planned height for dental implant installation. Advantages: safety, precision, and technical comfort.
[0124] The stops (depth limiters) on the positioners for dental implant installation keys should have the smallest possible diameter so as not to interfere with any adjacent teeth / structures.
[0125] 3.2) Without Door Frame:
[0126] Positioner for dental implant installation keys without depth limiter stop (free model): used when a standard height is not established or when it is necessary to have freedom to adjust the final height of the dental implant installation, based on the millimeter markings - advancement lines (AL) - existing on the outside. Advantages: freedom, possibility of changing the depth of dental implant installation, versatility and economy.
[0127] 4) Indexing markings (present when covered by the positioners on the installation keys).
[0128] Indexing markings, as found in Dental Implant Installation Keys, are important in prosthetic rehabilitations with multiple implants.
[0129] When the positioners for dental implant installation keys cover the existing indexing markings (spheres) on the installation keys, there will be a need for indexing sphere markings (El) located on the retainers or stops of the positioners for dental implant installation keys.
[0130] When the ball markings for indexing (El) are not present on the stops of the positioners for dental implant installation keys, These can have cut-out sides, like the models of milling cutter positioners, which allows for improved access to confined spaces.
[0131] Sphere markings for indexing (El) can also be registered on the cylindrical parts external to the surgical guide of the positioners for dental implant installation keys, or in the regions of the positioners that are in the surgeon's field of vision and are not immersed in the surgical guide.
[0132] These spheres on the positioners for dental implant installation keys correspond to the spheres on the dental implant installation keys and therefore need to be transferred / registered in the same corresponding directions. Therefore, the locking of the positioners for dental implant installation keys is extremely necessary and of great importance to prevent changes in the positioning of these markings (of the spheres) - positioners (29), (30), (31), (32), (33), (34), (35) and (36), respectively in figures 18 to 25.
[0133] Diameters: a) variations in the external diameter: according to the diameter of the implant; b) variations in the internal diameter: according to the diameter of the installation wrench. Surgical Guide.
[0134] The variations in depth of surgical drilling and dental implant placement are in accordance with the digital planning (final instrumentation / implant size).
[0135] Drilling in the surgical guide with a washer (selected according to the dental implant): - Inner diameter according to the outer diameter of the washer; - Depth according to the height of the washer.
[0136] Perforation in the surgical guide without a washer: - Internal diameter according to the diameter of the dental implant; - Depth according to the washer as an example or customized (examples: smallest possible height to increase the depth of the hole). surgical; standard height previously established and digitally planned according to the guided surgery system the professional wishes to work with).
[0137] Advantages of using a surgical guide without a washer: cost reduction; possibility of working in reduced mesio-distal spaces; possibility of decreasing the height and depth of the drill hole in the guide (allows for an increase in the depth of the surgical drill hole and an increase in the depth of the dental implant placement - in this case, the positioner stop can vary in location / height). Advantages of the technology employed through the use of the new positioners developed in this kit: - Optimizing the use of the conventional surgical kit, since it is necessary for the surgeon in the event of complications; - Low investment cost, as the new positioning kit is the transformative accessory for surgical technique; - The new positioning kit can be made from various types of reusable (sterilizable), disposable, and biodegradable materials; From a financial standpoint, the new positioning kit becomes an attractive facilitator for surgeons to learn guided surgery techniques, since they already possess the conventional surgical kit; - The new Positioning Kit is a game-changer in the surgeon's technical skill, offering the operational advantages of the guided surgery system: precision, accuracy, safety, comfort, and reduced surgical time. This combination also benefits the patient and results in a better post-operative period; - Possibility of working in confined spaces laterally (due to the presence of cutouts on the sides of the depth limiter stop; possibility of eliminating the metal washer commonly found in the surgical guide); - Possibility of accessing confined spaces in the vertical direction with conventional burs (example: patient with a small range of mouth opening); - Possibility of using long drills for advanced surgeries (examples: implant placement techniques in zygomatic arches, pterygoid processes, all-on-four surgeries) in a guided manner with the use of the positioning kit; - The positioners for dental implant installation keys are easily removable from the surgical guide ring / drill; - Positioning devices for dental implant placement keys offer financial advantages because they eliminate the following costs: acquisition of the surgeon-guided surgery kit; manufacturing of this key model with bulky incorporated metal material; environmental impact; - Compared to existing guided surgery kits on the market, the new positioning kit reduces metal consumption and offers the following advantages: elimination of the use of manual drill guides (Handle Drills), which directly eliminates the need for an assistant; elimination of the material incorporated into drills and installation wrenches; and elimination of the metal washer from the surgical guide. In this way, the consumption of metallic material is reduced, resulting in significant savings with both financial and environmental impact. BENEFITS ADDED BY THE NEW POSITIONING KIT The new positioners optimize conventional surgeries.
[0138] The use of the new positioners for the conventional surgical kit is indicated in the conventional surgical method, as they limit the depth of drilling and installation of dental implants. Furthermore, they also have an advantage over traditional "stops" because they have external diameters similar to the external diameters of the dental implants planned for installation, which facilitates understanding the final positioning of the implant in relation to the bone crest (mesio-distal and vestibulo-buccal / lingual directions) from the first perforations. - It facilitates the drilling procedure of Guided Surgery kits that use a manual drill guide (Handle Drill) by allowing the elimination of the handle drill.
[0139] The main objective of this patent application is the use of conventional surgical kits for implantology as kits used in guided surgical procedures through positioners developed for drills and wrenches for installing dental implants. Furthermore, the GUIDED SURGERY KITS Those who use a hand drill are catered to through these positioners in various ways, with a number of advantages and features.
[0140] Among these advantages and features, we can mention surgical optimization through the models of the positioners presented for drills: use of the same models developed for conventional surgical kits, but with the necessary compensations for the drills of guided surgery kits.
[0141] According to the invention, the presented positioner models for milling cutters allow for the elimination of the manual milling cutter guide assembly (Handle Drill).
[0142] On the other hand, eliminating the manual drill guide assembly promotes cost reductions in the following areas: financial; environmental, due to the amount of metallic material used in the manual drill guide assembly; and auxiliary personnel needed to stabilize the surgical guide, since the surgeon needs to use both hands during the procedure, one to hold the manual drill guide and the other to drill.
[0143] Furthermore, eliminating the use of the hand drill guide improves surgical technique: it minimizes the risk of altering the positioning and angulation of the planned drilling path due to possible movement of the hand drill guide.
[0144] Furthermore, models of the developed positioners can be used (with compensated measurements) on the drills of certain guided surgery kits that use the handle drill guide, thus eliminating its need: - Guided surgical drill with retention system for depth limiter: uses the positioner models (25 and 26) and split design with the necessary compensations; - Guided surgery drill without retention system for depth limiter: uses the Positioner models (15) to (24) and split with the appropriate compensations. The developed retention models allow the use of positioners (with simultaneous functions of cursors, angle guides and depth limiters) also for these drill models. Advantages in the dental implant placement procedure provided by the new positioners for installation keys.
[0145] Easy removal of the dental implant installation key from the surgical guide washer / drilling.
[0146] Elimination of the following costs: manufacturing of the key model with bulky incorporated metallic material already present in the guided surgery kit; environmental costs. Procedure using a positioning kit to convert the drills and wrenches for installing dental implants from conventional surgical kits into guided surgery kits.
[0147] Components required for guided surgery procedure: 1- Conventional surgical kit containing: (conventional kit); - Surgical drills for perforations (F1) (used in the contra-angle (CA)); - Surgical keys (C2) for dental implant placement: contra-angle key (CA) (used with the surgical contra-angle) and ratchet key (used with the surgical ratchet); - Surgical turnstile (operates manually); 2 - Positioning kit for converting the drills and wrenches for installing dental implants from conventional surgical kits into guided surgery kits; 3 - Printed surgical guide (G1); 4 - Surgical contra-angle (CA) (works coupled to the surgical motor); 5 - Dental implant (I) with cover screw or prosthetic component.
[0148] Other equipment is necessary for all surgical procedures in dental implantology (e.g., surgical field, various instruments that make up the surgical table, aspiration equipment, lighting, etc.).
[0149] In guided surgery procedures, a printed surgical guide is necessary for bone drilling and dental implant placement. The surgical guide is designed using specialized software. The design of the surgical guide is customized according to the shape of the surgical area (in the dental arch or alveolar ridge) and the ideal prosthetic condition, which determines the three-dimensional positioning of the dental implant to be installed. After this step, the 3D printing of the surgical guide is performed. and it must be securely fitted into the surgical area for which it was designed.
[0150] Surgical guides have holes with pathways that direct the ideal three-dimensional positioning of the drills during surgical drilling and of the installation keys during the insertion of dental implants into the bone structures.
[0151] The positioners (P1) of the presented Kit guide the drills and wrenches for installing dental implants from conventional surgical kits in a guided manner along the paths of the existing perforations in the printed surgical guides, with the aim of obtaining the ideal three-dimensional positions of the dental implants in the surgical areas, according to the best prognostic positions, in terms of function and aesthetics.
[0152] Figures 28 to 35 illustrate procedures and show the various components of the Kit, associated with others, in use. Figure 28 shows the drill positioner (P1), the surgical guide (G1), and the surgical area in the oral cavity (AC).
[0153] Figure 29 shows the drill positioner (P1) next to the surgical guide, where the inner part (PI) will be fitted into the surgical guide and the outer part (PE) will be placed in front of the perforation in the surgical guide (GI).
[0154] Figure 30 shows the positioner (P1) fitted into the surgical guide (G1), and the latter fitted into the oral cavity.
[0155] Figure 31 shows the drill positioner (P1) fitted into the surgical guide (G1), which is then fitted into the oral cavity.
[0156] Figure 32 shows the drill positioner (P1) in operation, with said positioner fitted to the drill and inserted into the surgical guide (G1).
[0157] Figure 33 shows the drill with the drill shank (HF), the reference positioner (P1) (15) and the active part (PA) of the drill. It also illustrates the drill used in the contra-angle (CA), the reference positioner (23) in function connected to the surgical guide (G1), as well as elastic interference retention rings.
[0158] Figure 33 illustrates the surgical drilling procedure using the positioner (P1) for the drill (F1). This application exemplifies the reference positioner (23) with the elastic interference retention rings (19) or (20) (rings). They function as space fillers and depth limiters used on the milling cutter shank in conjunction with the positioners (23) and (24)).
[0159] Figure 34 illustrates an example of equipment for the surgical procedure of dental implant placement: use of the positioner for dental implant placement key for contra-angle (CA), as the reference positioner (27). This image shows the contra-angle (CA), the key (C2) for contra-angle and the aforementioned positioner (27) and surgical guide (G1) in the oral cavity.
[0160] Figure 35 illustrates the use, in a surgical procedure, of a reference positioner (31) for implant installation key for ratchet key (CC), where this is installed on the ratchet and on the surgical guide (G1), with the dental implant installed.
Claims
CLAIMS 1) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, comprising a box (C1) with letters on the horizontal part of said box (C1) corresponding to the models of the positioners (P1) according to the drills (F1), the installation keys (C2) and the accessory rings (A1) for the drill shanks, characterized in that the horizontal column in the box (C1) is used for recording the drilling depths, installation depths and thicknesses of the accessory rings; the vertical column in the box (C1) is used for recording the diameters of the drills (F1), diameters of the dental implants (I) to be fitted into the installation keys (C2) and diameters of the accessory rings (A1); the letters on the horizontal part of the box (C1) are defined as follows: - (A): Positioners for conventional milling cutters that have a depth limiter fitting; - (B): Positioners for conventional milling cutters that are less thick (less caliber, with a smaller diameter) than the shank and without a retention system for depth stop; - (C): Positioners for conventional milling cutters that are thicker (have a larger diameter) than the shank and without a retention system for depth stop; - (D): Positioners for the guided surgery kit drill bit that have a depth limiter fitting; - (E): Positioners for long installation wrench for contra-angle handpiece; - (F): Positioners for short installation key for “modified” ratchet; - (G) - Positioners for long installation key for “modified” ratchet; - (H): Positioners for short ratchet installation key - locking with teardrop-shaped interference fits for hemispheres; - (I): Positioners for long installation wrench for ratchet - locking with teardrop-shaped interference fits for hemispheres; - (J): Elastic interference fit retaining rings and O-rings (elastic rings). 2) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGICAL KITS, according to claim 1, characterized in that the Kit according to the invention contains, inside, a conventional drill positioner with fitting (10), a conventional drill positioner with fitting (smallest possible size according to the height of the perforation in the surgical guide) (11), an external part to the guide of the split conventional drill positioner with fitting (12), an internal part to the guide of the split conventional drill positioner with fitting (13), a connected split positioner assembly for conventional drill with fitting (the split model also applies to the other drill positioners in this Kit) (14), a conventional drill positioner smaller than the shank (interference retention incorporated for fixing to the shank,so that the positioner does not fall off the drill (15), a conventional drill positioner smaller than the shank (incorporated interference retention for fixation on the shank, so that the positioner does not fall off the drill) - smallest possible size according to the height of the perforation in the surgical guide (16), an O-ring for retention (17), an elastic ring used in conjunction with a conventional drill positioner smaller than the shank (O-ring retention for fixation on the shank, so that the positioner does not fall off the drill) (18), an incorporated elastic interference retention ring (19) - space filler and depth limiter used on the drill shank in conjunction with components (23) and (24), an incorporated elastic interference retention ring (20) - space filler and depth limiter used on the drill shank in conjunction with components (23) and (24),O-ring (21) - space-filling and depth-limiting elastic ring used on the milling cutter shank in conjunction with components (23) and (24), an O-ring (22) - elastic ring, space filler and depth limiter used on the drill shank in conjunction with components (23) and (24), a conventional drill positioner set with a diameter greater than the shank (23) (incorporated interference retention for fixing to the shank so that the positioner does not fall off the drill) and depth stabilizer ring used on the shank, a conventional drill positioner with a diameter greater than the shank (24) (incorporated interference retention for fixing to the shank so that the positioner does not fall off the drill) - smallest possible size according to the height of the hole in the surgical guide, a drill positioner for the guided surgery kit with fitting (25), a drill positioner for the guided surgery kit with fitting (26) - smallest possible size according to the height of the hole in the surgical guide, a positioner with stop for long installation key (27) for contra-angle,a stopless (free) positioner for long installation wrench (28) for contra-angle, a stopper positioner for short installation wrench for ratchet (modified) (29), a stopless (free) positioner (30) for short installation wrench for ratchet (modified), a stopper positioner for long installation wrench for ratchet (31) (modified), a stopless (free) positioner for long installation wrench for ratchet (32) (modified) - including internal retainer (RI) and linear tool locking (TF) -, a stopper positioner for short installation wrench for ratchet (33) (locking with drop-shaped interference rings for hemispheres (TG) on the inside of the positioner), a stopless (free) positioner for short installation wrench for ratchet (34) (locking with drop-shaped interference rings for hemispheres (TG) on the inside of the positioner),a positioner with stop for long ratchet installation wrench (35) (locking with drop-shaped interference rings for hemispheres on the inside of the positioner), a positioner without stop (free) for long ratchet installation wrench (36) (locking with drop-shaped interference rings for hemispheres on the inside of the positioner), letters (37) on the horizontal part of the box correspond to the positioner models according to the milling cutters, installation wrenches and accessory rings for the milling cutter shanks, column, The horizontal column (38) in the box is used for recording drilling depths, installation depths and accessory ring thicknesses, the vertical column (39) in the box is used for recording milling diameters, dental implant diameters to be fitted into the installation keys and accessory ring diameters, in addition to space in the box reserved for other relevant data (40). 3) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claims 1 and 2, characterized in that the insertion axis for capturing most positioners (P1) for drills (F1) occurs in the direction from the active tip of the drill to the shank, except for positioners (23) and (24) and rings (19), (20), (21) and (22), as these are captured in the direction from the shank to the active tip of the drill; whereas the insertion axis for capturing positioners (P1) for dental implant installation keys (C2) occurs in the direction of the tip of the installation key. 4) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claims 1 and 2, characterized in that the positioners (10) and (11) are the same models as the positioners (25) and (26), respectively, but the latter have different lengths due to the existing compensations for the guided surgery drills of certain kits. 5) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claims 1 and 2, characterized in that the two-part components (12), (13) and (14) are presented in two forms: in a first option, the positioning assembly (14) is formed by fitting between components (12) and (13); that is, the assembly (14) is fitted and captured by the drill (first (12) and then (13)), to then be guided to the surgical guide; the other form of use occurs by fitting the component (13) in the surgical guide before capturing component (12) by the drill; component (12) fitted into the drill is moved towards the surgical guide to meet component (13) to make the connection (14), to guide the drill and limit the drilling depth; in the case of the split positioner (14), component (13) can be used in conjunction with component (12) of varying lengths, provided they have compatible diameters for the fittings; with regard to the positioning component (13) of the set of split positioners (14), it features a passage (P4) in one of the tabs of the stop for wire tying. 6) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR INSTALLING DENTAL IMPLANTS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claims 1 and 2, characterized in that the positioning models may have split models, respecting their particular characteristics, as in the example of the positioning tool for reference drill (14) having been developed from the model of the positioning tool for reference drill (10). 7) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claims 1 and 2, characterized by the lengths of the Positioners (12) and (13) that form the assembly (14): P1 (12): C3 size + retainer; P1 (13): C4 size + stop + extension for fitting and stability of P1 (12); The Positioners (12) and (13) that form the set (14) can be used for guided surgery drills, with the appropriate size compensations. 8) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGICAL KITS, according to claims 1 and 2, characterized in that the developed incorporated elastic interference retention rings (19) and (20) are employed on the cutter shank for Fill any space that may exist between the milling cutter positioner and the contra-angle handpiece (CA) or the milling cutter extension. 9) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claim 1, characterized in that the retentions developed for the dental implant installation keys (C2) from conventional kits are solutions to be used according to the various models and sizes of installation keys available on the market, both in models for contra-angles (CA) and in models for surgical ratchets (CC). 10) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to any of the preceding claims, characterized in that the positioners for drills include the following components: Retainer, Cylinder external to the guide, Irrigation cutout, Stop and Cylinder internal to the guide, namely: interference retainer: the retainer fixes the positioner (P1) for drill (F1); conventional drill positioners that already have a fitting (or interference stop) for depth limiters (stops) can use the same retention system available on the market and the same cylinder model with irrigation cutout; For these drills, the innovation that this new positioner kit brings is the addition of the stop (B1) on the outer surface of the cylinder (C3), this having one part external to the surgical guide (G1) and another part internal to it;The other positioners for conventional drills without a fitting for positioners are provided with retainers (R2) developed in the elastic model with incorporated interference; the kit also includes the O-ring retained positioner (18); guided surgery drills that already have a fitting (or interference fit) for depth stopers can use the same retention system available on the market and the same model of cylinder with irrigation cutout; for these drills, the Positioner Kit allows the joining of the depth stopers with the component of the manual drill guide (Handle Drill); guided to the ring / perforation in the surgical guide (G1); the depth limiter (stop) becomes the outer cylinder (C3), the ring (circular part of the hand drill guide connected to the penetrating part in the surgical guide and to the rod held by the surgeon) of the hand drill guide becomes the stop, and the penetrating part of the hand drill guide in the ring / perforation of the surgical guide becomes the inner cylinder (C4) in the surgical guide; the conventional Drill Positioner model without a retention system for the depth limiter, according to the present invention, can be used in the Drills of the guided surgery kit without a retention system for the depth limiter (respecting the size compensation). 11) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claim 8, characterized in that the elastic interferences created for the drill positioners (P1) of models (15), (16), (23) and (24), for conventional drills without retention interferences, also act for guided surgery drills without retention interferences with their due size compensations. 12) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGICAL KITS, according to any of the preceding claims, characterized by the outer cylinder (C3) having a cutout for irrigation (R5) present in the outer cylinder (C3) and the inner cylinder (C4) providing the connection of the positioner with the surgical guide, and thus, places the drill in the ideal location, angle and three-dimensional direction, according to the previously performed virtual planning, for the bone drilling procedure. 13) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to any of the preceding claims, characterized by the positioners (11), (16), (24) and (26) only have the inner cylinders (C4) with irrigation cutouts (R5) and the retainers also have stop functions; the dimensional relationships between diameters and heights being where the inner cylinder (C4) is according to the diameter of the implant, while the outer cylinder (C3) is according to the diameter of the implant, and may also be according to the diameter of the drill; as for the lengths / heights of the positioners (10), (11), (14), (15), (16), (18), (23) and (24) being: the sum of the retainer part to the size of the active part of the drill and less the desired drilling depth, with the stop (B1) positioned according to the height of the washer or the top of the drilling in the surgical guide (G1); in the positioner models (11), (16) and (24) the retainers become the Stops (B1);where: total length = depth limiter of the conventional surgery kit with its retainer (stop)', the positioner model (18) can also have reduced size as (11), (16), (24) and (26).; 14) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to any of the preceding claims, characterized in that the length / height of the positioner (25) is the sum of the depth limiter with its retainer, plus the component of the hand drill guide (Handle Drill) that is positioned in the washer and its outer ring in the surgical guide, where: total length = depth limiter of the guided surgery kit with the retainer (stop) + the ring and the cylindrical part of the hand drill guide (Handle Drill'. stop + inner cylinder in the surgical guide). 15) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGICAL KITS, according to any of the preceding claims, characterized in that the length of the positioner (26) is defined by the height of the hand drill guide component (Handle Drill) that is positioned in the washer (cylinder positioned on the inside of the surgical guide) and its outer ring in the surgical guide, which becomes the stop (depth limiter) together to the retainer, and in the positioner model (26), the retainer becomes the stop (B1); thus, the retainer, the outer ring of the hand drill guide (Handle Drill) and the stop become the same component of this positioner (26), where: total length = depth limiter of the guided surgery kit with the retainer (stop) or the ring and the cylindrical part of the hand drill guide (Handle Drill). stop + inner cylinder in the surgical guide. 16) POSITIONING KIT FOR CONVERTING DENTAL IMPLANT INSTALLATION CUTTERS AND KEYS FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to any of the preceding claims, characterized by positioners for implant installation keys, comprising retainers, cylindrical body with millimeter markings - advancement lines (LA) -, stops (present in some models) and indexing markings - indexing spheres (El) -, particularly interference retainer; cylindrical body with millimeter markings along the outer part and; stop - depth limiter of the positioner when it is introduced into the surgical guide perforation; indexing markings - present when covered by the positioners on the installation keys. 17) POSITIONING KIT FOR CONVERTING DRILLS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGICAL KITS, according to claim 13, characterized in that, when lacking indexing ball markings on the stops of the positioners for dental implant installation keys, these may have cut-out sides, as in the models of positioners for drills; the indexing ball markings may also be registered on the cylindrical parts external to the surgical guide of the positioners for dental implant installation keys, or in the regions of the positioners that are in the surgeon's field of vision and are not immersed in the surgical guide; the balls existing in the positioners for dental implant installation keys correspond to the balls existing in the installation keys. of dental implants and therefore need to be transferred / registered in the same corresponding directions. 18) POSITIONING KIT FOR CONVERTING DRILLING CUTTERS AND KEYS FOR DENTAL IMPLANT INSTALLATION FROM CONVENTIONAL SURGICAL KITS INTO GUIDED SURGERY KITS, according to claim 1, characterized in that the developed positioners (P1) are used on drills for drilling procedures and on keys for dental implant installation procedures; the same positioners can also be used in guided retrieval or capture procedures for the removal of dental implants, when necessary, provided that the planning is also carried out digitally and a guide is made for the fittings of the indicated positioners;The positioning models (P1) for guided implantology procedures can be used in other dental specialties, in other health areas, and in mechanics for drilling, installation, and retrieval or capture of structures with appropriate dimensions, provided that the planning is done digitally and a guide is made for the fitting of the indicated positioners; the positioners (P1) for burs and installation wrenches can have varying gauges identified by different colors according to the needs of each manufacturer.
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