Electric screwdriver for dental implant repair

Abstract

The electric screwdriver comprises a handle and a screwdriver head rotating bin arranged at one end of the handle in a communicating mode, an adapter is rotatably arranged on one side of the screwdriver head rotating bin and used for being detachably connected with a screwdriver head, a transmission gear located in the screwdriver head rotating bin is arranged on the adapter, and a driving motor is arranged in the screwdriver head rotating bin in a sliding mode; at least two driving gears with different tooth numbers are arranged on an output shaft of the driving motor, and any driving gear is correspondingly meshed through sliding of the driving motor. A button plate is slidably arranged on the outer wall of the handle, a driving mechanism matched with the button plate to control the driving motor to position and slide is arranged in the handle, and a control button electrically connected with the driving motor is arranged on the side wall, located outside the handle, of the button plate; an observation mirror is rotatably arranged at the end, away from the handle, in the tool bit rotating bin in the circumferential direction of the tool bit rotating bin and can stretch into the tool bit rotating bin. The screwdriver head can be driven by a machine, the rotating torque is adjustable, the screwdriver head has the capacity of observing the condition in the oral cavity while screwing, and the planting efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to an electric screwdriver for dental implant restoration, belonging to the field of medical device technology. Background Technology

[0002] In the field of dental implant technology, dentists need to use specialized screwdrivers to tighten or loosen implant restoration screws (including healing abutments, cover screws, restoration abutments, composite abutments, protective caps, etc.) in either the forward or reverse direction to facilitate a smooth implant surgery and achieve the desired implant results.

[0003] However, existing screwdrivers for dental implant restorations generally use a design where the threaded rod is inserted and removed from the screwdriver head. Tightening or loosening is done manually, and only a single type of threaded rod can be used. Changing the screw is inconvenient, and it is difficult to observe the tightening process inside the oral cavity. After tightening, the screwdriver needs to be removed and observed through a mouth mirror. This process needs to be repeated until the screw is tightened properly, which is time-consuming, labor-intensive, and reduces work efficiency. Summary of the Invention

[0004] The technical problem to be solved by this invention is that most existing dental implant restoration screwdrivers are manually tightened and can only use a single specification of threaded rod, making it difficult to observe the tightening situation in the human oral cavity, inconvenient to change screwdrivers, time-consuming and labor-intensive, and with low work efficiency.

[0005] To address the aforementioned technical problems, this invention provides an electric screwdriver for dental implant restoration. The screwdriver head is machine-driven and has adjustable turning torque. It also has the ability to observe the internal condition of the oral cavity while screwing, greatly improving implantation efficiency.

[0006] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution:

[0007] An electric screwdriver for dental implant restoration includes a screwdriver head chamber and a handle. The screwdriver head chamber is connected to one end of the handle. An adapter is rotated on one side of the screwdriver head chamber for detachably connecting a screwdriver head. The adapter is provided with a transmission gear located inside the screwdriver head chamber. A drive motor is slidably mounted inside the screwdriver head chamber. The output shaft of the drive motor is provided with at least two drive gears with different numbers of teeth. Any of the drive gears is engaged by the sliding of the drive motor.

[0008] A button panel is slidably mounted on the outer wall of the handle. A drive mechanism that works with the button panel to control the positioning and sliding of the drive motor is located inside the handle. A control button that is electrically connected to the drive motor is located on the side wall of the handle to control the start and stop of the drive motor. A battery is located inside the handle to power the electrical components inside the electric screwdriver.

[0009] An observation mirror is mounted circumferentially inside the cutter head chamber at one end opposite to the handle. The observation mirror can extend into the cutter head chamber, which is equipped with a power component that drives the observation mirror to rotate and extend.

[0010] Preferably, the drive gear has a toothless portion and a toothed portion, and the transmission gear achieves constant torque adjustment when meshing with the toothed portion, and achieves slippage when switching to the toothless portion.

[0011] Preferably, the driving mechanism includes a slide and a limiting component. The slide is slidably disposed inside the handle and one end extends into the cutter head chamber. The drive motor is detachably connected to the slide. The limiting component is disposed on the button plate. The handle has limiting holes that cooperate with the limiting component to fix the button plate at a fixed point. The number of limiting holes corresponds to the number of drive gears. One end of the slide inside the handle is fixedly connected to the button plate.

[0012] Furthermore, the limiting component includes a limiting protrusion and an elastic element. A sliding groove for sliding the keypad is provided on the outer wall of the handle. At least one limiting protrusion is provided and slides on the side wall of the keypad in a direction close to or away from the inner wall of the sliding groove. The end of the limiting protrusion facing the inner wall of the sliding groove is hemispherical. The limiting hole is provided on the inner wall of the sliding groove and is engaged with the hemispherical head end of the limiting protrusion. The end of the limiting protrusion away from the inner wall of the sliding groove is connected to the inner wall of the keypad through the elastic element.

[0013] Preferably, the power assembly includes a mounting base, a drive wheel, a drive belt, a micro motor, and a micro electric cylinder. The cutter head rotating chamber has a mirror chamber. The drive belt is driven to rotate on the inner wall of the mirror chamber by the micro motor located in the mirror chamber. The mounting base is slidably disposed in the mirror chamber. At least two drive wheels are symmetrically arranged and are located on two opposite outer walls of the mounting base. One drive wheel is poweredly connected to the drive belt to drive the mounting base to slide by rotation. The mounting base has a telescopic groove, and at least one of the micro electric cylinders is disposed in the telescopic groove. The observation mirror is driven to slide in the telescopic groove by the micro electric cylinder.

[0014] Furthermore, the keypad is also equipped with a telescopic button and a sliding button. The telescopic button is electrically connected to the miniature electric cylinder, and the sliding button is electrically connected to the miniature motor, which is a bidirectional drive motor.

[0015] Furthermore, the handle is equipped with a control circuit board, which is electrically connected to the control button and the drive motor, the telescopic button and the miniature electric cylinder, and the sliding button and the miniature motor.

[0016] Preferably, the end of the handle opposite to the cutter head chamber is provided with a charging interface that is electrically connected to the battery.

[0017] Preferably, the cutter head rotary chamber has multiple lights on the outer wall of the side where the adapter is located, and the keypad has a light control button that is electrically connected to the lights.

[0018] Preferably, the adapter has a plug groove, and the screwdriver head has a connector that is transitionally or interference-fitted with the plug groove.

[0019] The electric screwdriver for dental implant restoration provided by this invention has the following advantages:

[0020] 1. The electric screwdriver for dental implant restoration of the present invention drives multiple drive gears with different numbers of teeth to mesh with the transmission gear through a sliding drive motor. The output torque of the screwdriver head is controlled by changing the number of teeth. At the same time, the screwdriver head is tightened by the drive motor, eliminating the need for manual tightening and ensuring stable and controllable tightening torque, which greatly improves the implantation efficiency.

[0021] 2. The electric screwdriver for dental implant restoration of the present invention, by means of an observation lens that is telescopically mounted in the rotating chamber of the screwdriver head, allows the operator to directly observe through the observation lens on the rotating chamber of the screwdriver head when the field of vision is poor, without having to switch back and forth between the observation lens and the screwdriver, thereby further improving the implantation efficiency.

[0022] 3. The electric screwdriver for dental implant restoration of the present invention facilitates the replacement of screwdriver heads through the detachable connection between the screwdriver head and the adapter, thereby allowing the same electric screwdriver to be compatible with a variety of screwdriver heads. It also facilitates the replacement of damaged screwdriver heads, reducing replacement costs. Attached Figure Description

[0023] Figure 1 This is an axial view of an electric screwdriver for dental implant restoration provided in an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram illustrating the internal structure of an electric screwdriver for dental implant restoration, which is a key embodiment of the present invention.

[0025] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;

[0026] Figure 4 This is a cross-sectional structural diagram illustrating the structure at the limiting component, which is the main feature of this embodiment of the invention.

[0027] Figure 5 for Figure 4 Enlarged diagram of section B in the middle;

[0028] In the picture:

[0029] 1-Screwdriver head chamber; 11-Connecting rod; 12-Mirror chamber; 2-Handle; 21-Slide control groove; 211-Limiting hole; 3-Adapter; 31-Plug-in groove; 4-Screwdriver head; 41-Connector; 5-Transmission gear; 6-Drive motor; 7-Drive gear; 71-Gearless part; 72-Geared part; 8-Button panel; 81-Control button; 82-Telescopic button; 83-Slide button; 84-Light control button; 9-Drive mechanism; 91-Slide; 92-Limiting component; 921-Limiting protrusion; 922-Elastic element; 13-Observation mirror; 14-Power component; 141-Mounting base; 1411-Telescopic groove; 142-Transmission wheel; 143-Transmission belt; 144-Miniature motor; 145-Miniature electric cylinder; 15-Control circuit board; 16-Charging interface; 17-Lighting lamp; 18-Battery. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figures 1-3 An electric screwdriver for dental implant restoration includes a rotating blade compartment 1 and a handle 2. The rotating blade compartment 1 is connected to one end of the handle 2 via an integrally formed slender connecting rod 11. An adapter 3 is rotated on one side of the rotating blade compartment 1 for detachably connecting a screwdriver head 4. A transmission gear 5 located inside the rotating blade compartment 1 is installed on the adapter 3. A drive motor 6 is slidably mounted inside the rotating blade compartment 1. At least two drive gears 7 with different numbers of teeth are provided on the output shaft of the drive motor 6. Any drive gear 7 can be meshed with the drive motor 6 through the sliding motion. The drive gears 7 with different numbers of teeth can achieve different output torque ratios when meshing with the transmission gear 5 and the drive gear 7, thereby meeting the needs of various tightening torques. At the same time, the tightening of the screwdriver head 4 is driven by the drive motor 6, eliminating the need for manual tightening and ensuring stable and controllable tightening torque, which greatly improves implantation efficiency. In this embodiment, three drive gears 7 are preferably installed, which can achieve three torque adjustments. Both the drive gears 7 and the transmission gears 5 are bevel gears, and when adjusted in the same direction, the torque gradually increases or decreases, making it easier for the operator to quickly adjust to the required torque.

[0032] Furthermore, the adapter 3 has a plug groove 31, and the screwdriver head 4 has a connector 41 that is connected to the plug groove 31 through transition or interference fit, thereby realizing the detachable connection between the screwdriver head 4 and the adapter 3, which facilitates the replacement of the screwdriver head 4. This allows the same electric screwdriver to be compatible with multiple screwdriver heads 4, and also facilitates the replacement of damaged screwdriver heads 4, reducing replacement costs.

[0033] Furthermore, the drive gear 7 has a toothless portion 71 and a toothed portion 72. When the transmission gear 5 meshes with the toothed portion 72, it achieves a constant torque rotation, which in turn drives the screwdriver head 4 fixedly connected to the adapter 3 to rotate, thereby tightening the implant. When it rotates to the toothless portion 71, it slips out. At this point, even if the drive gear 7 continues to rotate, the transmission gear 5, the adapter 3, and the screwdriver head 4 will not continue to rotate, which can avoid over-rotation of the implant. When tightening again, the surgeon only needs to tighten the adapter 3 and the transmission gear 5 into place.

[0034] Reference Figures 1-5 A button plate 8 is slidably mounted on the outer wall of the handle 2. A drive mechanism 9 is provided inside the handle 2 to cooperate with the button plate 8 to control the positioning and sliding of the drive motor 6. A control button 81 electrically connected to the drive motor 6 is provided on the side wall of the handle 2 to control the start and stop of the drive motor 6. A battery 18 is installed inside the handle 2 to power the electrical components inside the electric screwdriver.

[0035] Furthermore, the drive mechanism 9 includes a slide 91 and a limiting component 92. The slide 91 is slidably installed inside the handle 2 and one end of the slide 91 extends through the connecting rod 11 into the cutter head chamber 1. The drive motor 6 is detachably connected to the slide 91 by bolts. The limiting component 92 is installed on the button plate 8. The handle 2 has limiting holes 211 that cooperate with the limiting component 92 to fix the button plate 8 at a fixed point. The number of limiting holes 211 corresponds to the number of drive gears 7. One end of the slide 91 located inside the handle 2 is fixedly connected to the button plate 8.

[0036] Specifically, the limiting component 92 includes a limiting protrusion 921 and an elastic element 922. A sliding groove 21 for sliding the button plate 8 is provided on the outer wall of the handle 2. At least one limiting protrusion 921 is provided and slides on the side wall of the button plate 8 in a direction close to or away from the inner wall of the sliding groove 21. The end of the limiting protrusion 921 facing the inner wall of the sliding groove 21 is hemispherical. A limiting hole 211 is provided on the inner wall of the sliding groove 21 and is engaged and adapted with the hemispherical head end of the limiting protrusion 921. The end of the limiting protrusion 921 away from the inner wall of the sliding groove 21 is connected to the inner wall of the button plate 8 through the elastic element 922. When the operator uses the device, they push the button plate 8 with force. As the button plate 8 moves, the hemispherical head of the limiting protrusion 921 tends to move forward. However, due to the restriction of the inner wall of the limiting hole 211, the limiting protrusion 921 converts its forward movement into a linear movement away from the inner wall of the sliding groove 21 and slides out of the limiting hole 211. At this time, the elastic element 922 is compressed and gains elastic potential energy. When the limiting protrusion 921 moves to the next limiting hole 211 and corresponds to it, the elastic element 922 releases its elastic potential energy to push the limiting protrusion 921 out, so that the hemispherical head of the limiting protrusion 921 extends into the corresponding limiting hole 211, thus achieving the limiting. In this embodiment, the elastic element 922 is a spring, and a limiting protrusion 921 is provided on each of the two opposite side walls of the button plate 8.

[0037] Reference Figures 1-3 An observation lens 13 is rotatably mounted in the cutter head chamber 1 at one end away from the handle 2 along the circumference of the cutter head chamber 1. The observation lens 13 can extend into the cutter head chamber 1. A power component 14 is installed in the cutter head chamber 1 to drive the observation lens 13 to rotate and extend. In this embodiment, the observation lens 13 is preferably a magnifying glass.

[0038] The power assembly 14 includes a mounting base 141, a transmission wheel 142, a transmission belt 143, a micro motor 144, and a micro electric cylinder 145. The cutter head rotating chamber 1 has a mirror chamber 12. The transmission belt 143 is driven to rotate on the inner wall of the mirror chamber 12 by the micro motor 144 installed in the mirror chamber 12. The mounting base 141 is slidably disposed in the mirror chamber 12. At least two transmission wheels 142 are symmetrically arranged and are disposed on the outer walls of the mounting base 141 on two opposite sides. One of the transmission wheels 142 is poweredly connected to the transmission belt 143 so as to drive the mounting base 141 to slide by rotation. The mounting base 141 has a telescopic groove 1411. At least one micro electric cylinder 145 is provided in the telescopic groove 1411. The observation mirror 13 is driven to slide in the telescopic groove 1411 by the micro electric cylinder 145. In this embodiment, the transmission wheel 142 is a gear and the transmission belt 143 is a toothed belt. During the planting process, if it is necessary to observe the setting status, the operator can control the observation mirror 13 to extend out of the blade rotating chamber 1, so that there is no need to take out the external mirror body for observation. At the same time, the operator can also observe the setting status from multiple angles by moving the observation mirror 13 along the axis of the blade rotating chamber 1.

[0039] Furthermore, the button panel 8 is also equipped with a telescopic button 82 and a sliding button 83. The telescopic button 82 is electrically connected to the miniature electric cylinder 145, and the sliding button 83 is electrically connected to the miniature motor 144. The miniature motor 144 is a bidirectional drive motor, which allows the operator to control the extension and movement of the observation mirror 13 at any time according to the observation needs.

[0040] Reference Figure 2 and Figure 4 The handle 2 is equipped with a control circuit board 15. The control circuit board 15 is electrically connected to the control button 81 and the drive motor 6, the telescopic button 82 and the micro electric cylinder 145, and the sliding button 83 and the micro motor 144. In this embodiment, the application of the control circuit board 15 is the prior art and will not be described in detail.

[0041] Furthermore, the end of the handle 2 away from the blade head chamber 1 is provided with a charging interface 16 that is electrically connected to the battery 18. The battery 18 can be a lithium battery 18 that can be charged. Multiple lights 17 are installed on the outer wall of the blade head chamber 1 on the side with the adapter 3. A light control button 84 that is electrically connected to the light 17 is installed on the button panel 8 to provide the operator with a brighter and clearer vision. The light 17 and the light button are also electrically connected through the control circuit board 15.

[0042] The working principle of the electric screwdriver for dental implant restoration of the present invention is as follows:

[0043] Before setting the dental implant, the surgeon selects a suitable threading tip and installs it on the adapter 3. After installation, the surgeon determines the required torque and then moves the corresponding torque drive gear 7 to mesh with the transmission gear 5 via the button plate 8. After adjustment, the surgeon inserts the tip rotating chamber 1 into the patient's mouth and aligns the threading tip with the dental implant. Once aligned, the surgeon starts the drive motor 6 via the control button 81 to automatically set the dental implant. During the setting process, the surgeon can also quickly and easily activate the observation mirror 13 and the lighting lamp 17 to observe the setting process and better complete the dental implant setting.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An electric screwdriver for dental implant restoration, characterized in that, The device includes a screwdriver head chamber (1) and a handle (2). The screwdriver head chamber (1) is connected to one end of the handle (2). An adapter (3) is provided on one side of the screwdriver head chamber (1) for detachably connecting a screwdriver head (4). The adapter (3) is provided with a transmission gear (5) located inside the screwdriver head chamber (1). A drive motor (6) is slidably installed inside the screwdriver head chamber (1). The output shaft of the drive motor (6) is provided with at least two drive gears (7) with different numbers of teeth. Any of the drive gears (7) can be meshed with each other by sliding the drive motor (6). A button plate (8) is slidably provided on the outer wall of the handle (2). A drive mechanism (9) is provided inside the handle (2) to cooperate with the button plate (8) to control the positioning and sliding of the drive motor (6). A control button (81) electrically connected to the drive motor (6) is provided on the side wall of the button plate (8) outside the handle (2) to control the start and stop of the drive motor (6). A battery (18) is provided inside the handle (2) to power the electrical components inside the electric screwdriver. An observation mirror (13) is provided in the cutter head rotating chamber (1) at one end away from the handle (2) along the circumference of the cutter head rotating chamber (1). The observation mirror (13) can be inserted into the cutter head rotating chamber (1). A power component (14) for driving the observation mirror (13) to rotate and extend is provided in the cutter head rotating chamber (1).

2. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The drive gear (7) has a toothless portion (71) and a toothed portion (72). When the transmission gear (5) meshes with the toothed portion (72), it achieves constant torque adjustment, and when it is switched to the toothless portion (71), it achieves slippage.

3. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The drive mechanism (9) includes a slide (91) and a limiting component (92). The slide (91) is slidably disposed in the handle (2) and one end extends into the cutter head chamber (1). The drive motor (6) is detachably connected to the slide (91). The limiting component (92) is disposed on the keypad (8). The handle (2) has limiting holes (211) that cooperate with the limiting component (92) to fix the keypad (8) at a fixed point. The number of limiting holes (211) corresponds to the number of drive gears (7). One end of the slide (91) located in the handle (2) is fixedly connected to the keypad (8).

4. The electric screwdriver for dental implant restoration as described in claim 3, characterized in that, The limiting component (92) includes a limiting protrusion (921) and an elastic element (922). The outer wall of the handle (2) is provided with a sliding groove (21) for the keypad (8) to slide. The limiting protrusion (921) is provided with at least one and slides on the side wall of the keypad (8) in a direction close to or away from the inner wall of the sliding groove (21). The end of the limiting protrusion (921) facing the inner wall of the sliding groove (21) is hemispherical. The limiting hole (211) is opened on the inner wall of the sliding groove (21) and is engaged with the hemispherical head of the limiting protrusion (921). The end of the limiting protrusion (921) away from the inner wall of the sliding groove (21) is connected to the inner wall of the keypad (8) through the elastic element (922).

5. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The power assembly (14) includes a mounting base (141), a transmission wheel (142), a transmission belt (143), a micro motor (144), and a micro electric cylinder (145). A mirror chamber (12) is provided inside the cutter head rotating chamber (1). The transmission belt (143) is driven to rotate on the inner wall of the mirror chamber (12) by the micro motor (144) located within the mirror chamber (12). The mounting base (141) slides within the mirror chamber (12). The transmission wheel (142)... At least two are symmetrically arranged on opposite outer walls of the mounting base (141). One of the drive wheels (142) is poweredly connected to the drive belt (143) to drive the mounting base (141) to slide by rotation. The mounting base (141) is provided with a telescopic groove (1411). At least one of the miniature electric cylinders (145) is provided in the telescopic groove (1411). The observation mirror (13) is driven to slide in the telescopic groove (1411) by the miniature electric cylinder (145).

6. The electric screwdriver for dental implant restoration as described in claim 5, characterized in that, The button panel (8) is also provided with a telescopic button (82) and a sliding button (83). The telescopic button (82) is electrically connected to the micro electric cylinder (145), and the sliding button (83) is electrically connected to the micro motor (144). The micro motor (144) is a bidirectional drive motor.

7. The electric screwdriver for dental implant restoration as described in claim 6, characterized in that, The handle (2) is provided with a control circuit board (15), which is electrically connected to the control button (81) and the drive motor (6), the telescopic button (82) and the miniature electric cylinder (145), and the sliding button (83) and the miniature motor (144).

8. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The handle (2) is provided with a charging interface (16) that is electrically connected to the battery (18) at the end opposite to the cutter head chamber (1).

9. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The blade rotating chamber (1) has multiple lighting lamps (17) on one side of the outer wall where the adapter (3) is located, and the keypad (8) has a light control button (84) that is electrically connected to the lighting lamps (17).

10. The electric screwdriver for dental implant restoration as described in claim 1, characterized in that, The adapter (3) has a plug groove (31), and the screwdriver head (4) has a connector (41) that is connected to the plug groove (31) in a transition or interference fit.

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