Bone drill power handle

Abstract

The bone drill power handle comprises a handle body part, a handheld part, a bin body part, a distance measuring sensor, a calibration sensor and an electric control module, the handheld part is connected to the bottom of the handle body part, and an included angle is formed between the center line of the handheld part and the axis of the handle body part; the bin body part is arranged on the handle body part and is provided with a containing cavity; the distance measuring sensor is accommodated in the accommodating cavity of the bin body part and is used for generating a distance measuring signal; the calibration sensor is accommodated in the handle body piece or the handheld piece and is used for generating a calibration signal; the electric control module is used for receiving, processing and feeding back distance measuring signals of the distance measuring sensor and calibration signals of the calibration sensor. Compared with the prior art, according to the scheme, the advancing depth of the drill bit is accurately detected in real time through the distance measuring assembly, and potential safety hazards existing in an operation can be greatly reduced; and the advancing direction of the drill bit is monitored through the alignment assembly, so that an operator of the bone drill power device can correct the advancing direction of the drill bit in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a bone drill power handle. Background Art

[0002] Bone drill power units are often used in surgical procedures to drill holes in bones. These units consist of a drill bit and a power handle. The drill bit is mounted on the front end of the power handle, and the power provided by the power handle drives the drill bit to rotate, acting on the bone to perform the surgical operation.

[0003] Current bone drills typically rely on manual feel or visual inspection to determine if the bone has been drilled to the required depth. These drills are unable to accurately and in real time, posing a safety hazard to surgical procedures. Furthermore, the drill bit must maintain a fixed direction during drilling, but vibrations can easily cause it to deviate from its intended direction, compromising surgical precision. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a bone drill power handle for solving the problem in the prior art that the drilling depth and direction cannot be detected in real time.

[0005] To achieve the above-mentioned and other related purposes, the technical solutions of the present invention are as follows:

[0006] A bone drill power handle, comprising:

[0007] handle body;

[0008] A handpiece is connected to the bottom of the handle body, and the center line of the handpiece is arranged at an angle to the axis of the handle body;

[0009] The chamber body is provided on the handle body and has a receiving cavity;

[0010] a distance measuring sensor housed in the accommodating cavity of the chamber body, the distance measuring sensor being configured to generate a distance measuring signal, the transmission direction of the distance measuring signal being oriented toward the drilling direction of the drill bit, so as to obtain the drilling depth of the drill bit in real time based on the distance measuring signal;

[0011] a calibration sensor, housed in the handle or the handpiece, for generating a calibration signal, wherein the calibration signal indicates the drilling direction of the drill bit in response to the movement of the drill bit;

[0012] An electric control module is accommodated inside the handle body or the handheld piece and electrically connected with the distance measuring sensor and the calibration sensor respectively, for receiving and processing the distance measuring signal of the distance measuring sensor and the calibration signal of the calibration sensor and feeding back.

[0013] Optionally, the end of the handle body away from the drilling direction of the drill bit has a recess, and the bottom end of the cartridge body is connected to the recess, and the top end of the cartridge body protrudes from the top of the handle body.

[0014] Optionally, the end of the cartridge body towards the drilling direction of the drill bit is provided with a through hole, the through hole is in communication with the accommodation cavity, and the distance measuring signal generated by the distance measuring sensor is emitted to the drilling direction of the drill bit through the through hole.

[0015] Optionally, the end of the cartridge body away from the drilling direction of the drill bit is provided with a cartridge rear cover, the cartridge rear cover is detachably connected to the rear end of the cartridge body, and the distance measuring sensor is detachably accommodated in the accommodation cavity of the cartridge body.

[0016] Optionally, the rear end of the distance measuring sensor is provided with a display screen, the electric control module is electrically connected with the display screen, the display screen is arranged at the end of the cartridge body away from the drilling direction of the drill bit, and the distance measuring signal and the calibration signal are fed back through the display screen after being processed by the electric control module.

[0017] Optionally, the cartridge rear cover is detachably connected to the rear end of the cartridge body, the end of the cartridge rear cover away from the drilling direction of the drill bit has an openwork portion, and the display screen is arranged in the openwork portion.

[0018] Optionally, locking holes corresponding in position are arranged on the cartridge body and the cartridge rear cover, a locking tongue is inserted into the locking holes to lock the cartridge body and the cartridge rear cover, one end of the locking tongue inside the cartridge body is connected with a locking piece and elastically abuts against the locking piece through the locking piece, the outside of the cartridge body is provided with a locking piece button aligned with the locking piece, the locking piece is elastically compressed by pressing the locking piece button, the locking tongue moves out of the locking hole with the locking piece, and the locking of the cartridge body and the cartridge rear cover is released.

[0019] Optionally, a finding assembly arranged on the handheld piece is further included, the calibration signal is fed back in the form of a cursor, and the finding assembly is used for zeroing the calibration signal generated by the calibration sensor, so that the cursor indicating the drilling direction of the drill bit returns to a preset starting position.

[0020] Optionally, the alignment component includes an alignment base, an alignment button, an alignment spring and a trigger module, the alignment base is arranged inside the handpiece, one end of the alignment button extends into the alignment base and is slidable relative to the alignment base, the alignment spring is arranged in the alignment base, one end of the alignment spring abuts against a side wall of the alignment base, the other end abuts against one end of the alignment button extending into the alignment base, the other end of the alignment button extends out of the outer surface of the handpiece, the trigger module is arranged at one end of the alignment spring close to the alignment button, and the trigger module can move toward the other end of the alignment spring as the alignment button slides.

[0021] Optionally, the electronic control module is arranged inside the handpiece near the positioning base, and a trigger element is provided on the positioning base. The trigger element is electrically connected to the electronic control module. Driven by the positioning button, the trigger module approaches and acts on the trigger element to reset the calibration signal of the calibration sensor to zero.

[0022] In the present invention, a drill bit is mounted on the front end of the power handle, forming a bone drill power unit. During use, the drill bit's advancement depth is detected in real time by a distance sensor. The detected signal is then transmitted to an electronic control module. The operator of the bone drill power unit can determine the drill bit's advancement depth based on the signal and decide whether to continue using the unit. Furthermore, during use, the drill bit's advancement direction is calibrated by a calibration sensor, and the drill bit's position is transmitted in real time by the electronic control module to determine whether the drill bit's advancement direction has deviated. If the drill bit's advancement direction is not on the drill bit's axis, the operator of the bone drill power unit can swing the drill bit to align with the axis, ensuring smooth advancement. Compared to the prior art, the present invention uses a distance sensor to accurately detect the drill bit's advancement depth in real time, significantly reducing potential safety hazards during surgery. Furthermore, the calibration sensor monitors the drill bit's advancement direction, allowing the operator of the bone drill power unit to adjust the drill bit's advancement direction in real time, ensuring surgical accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an exemplary bone drill power handle of the present invention;

[0024] Figure 2 This is another structural schematic diagram of an exemplary bone drill power handle of the present invention;

[0025] Figure 3 This is a cross-sectional view of the structure of an exemplary bone drill power handle of the present invention;

[0026] Figure 4An example of a partial structure of a bone drill power handle of the present application;

[0027] Figure 5 An example of a schematic diagram of a partial structure (lock tongue, lock plate, lock plate button) in a bone drill power handle of the present application;

[0028] Figure 6 An example of a structure sectional view of a switch assembly in a bone drill power handle of the present application;

[0029] Figure 7 An example of a top view of the switch assembly (part of the assembly is sectioned); Figure 6 An example of a top view of the switch assembly (sectioned at the swing lever);

[0030] Figure 8 An example of a top view of the switch assembly (sectioned at the swing lever); Figure 6 An example of a top view of the switch assembly (sectioned at the swing lever);

[0031] In the embodiments, the reference signs are explained as follows:

[0032] Handle body 11, handle shell 12, drive module 13, speed reduction module 14, drill bit identification module 15, drill bit clamping member 16, output sleeve 17, hand holding member 18, electronic control module 19,

[0033] Cylinder body 20, cylinder rear cover 21, through hole 22, lock tongue 23, lock plate 24, lock plate button 25,

[0034] Distance measuring sensor 30, distance measuring circuit board 31, sensor shell 32,

[0035] Display screen 40, signal pin 41, display screen cover 42,

[0036] Switch assembly 50, switch base 51, switch button 52, compression spring 521, anti-rotation pin 522, first sleeve 523, second sleeve 524, switch magnet 525, boss 526, reversing lever 53, swing lever 54, rotation pin 541, tension spring 542, first tension spring fixing pin 543, second tension spring fixing pin 544,

[0037] Alignment assembly 60, alignment key plate 61, alignment base 62, alignment button 63, alignment spring 64, alignment magnet 65, magnet base 66. DETAILED DESCRIPTION

[0038] In the following description, numerous specific details are given to provide a thorough understanding of the application. However, it will be apparent that the application can be practiced without one or more of the specific details. In other instances, well-known techniques are not described in detail in order not to unnecessarily obscure the application.

[0039] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art. In the accompanying drawings, like reference numerals represent like components throughout.

[0040] The bone drill power handle of the present invention is a part of the bone drill power device. The bone drill power handle is connected to the drill bit to provide power for the drill bit. The bone drill power handle is provided with a distance measuring sensor and a calibration sensor, which can detect the distance the drill bit advances in real time during the use of the bone drill power device, and can also provide real-time feedback on whether the drill bit deviates during the advancement process.

[0041] In this plan, the position description of a certain structure, such as front end, front side, front, rear end, rear side, rear, upper end, lower end, above, below, etc., is based on the usage status of the bone drill power device. When the bone drill power device is in use, the direction toward the patient is front, the direction toward the doctor is back, the upward direction is above, and the direction toward the ground is below.

[0042] The specific structure of the bone drill power handle of the present invention is shown in FIG. Figures 1 to 8 , a bone drill power handle, comprising:

[0043] handle body 11;

[0044] A handpiece 18 is connected to the bottom of the handle body 11 and is integrally connected to the handle body 11. The center line of the handpiece 18 is arranged at an angle to the axis of the handle body 11.

[0045] The chamber body 20 is provided on the handle body 11 and has a receiving cavity;

[0046] a distance measuring sensor 30 housed in the accommodating cavity of the housing portion 20 , the distance measuring sensor 30 being configured to generate a distance measuring signal, the transmission direction of the distance measuring signal being oriented toward the drilling direction of the drill bit, so as to obtain the drilling depth of the drill bit in real time based on the distance measuring signal;

[0047] a calibration sensor, housed in the handle 11 or the handpiece 18, for generating a calibration signal, wherein the calibration signal indicates the drilling direction of the drill bit as the drill bit moves;

[0048] The electronic control module 19 is housed inside the handle body 11 or the handpiece 18 and is electrically connected to the distance sensor 30 and the calibration sensor respectively, for receiving and processing the distance signal of the distance sensor 30 and the calibration signal of the calibration sensor and feeding back the signals.

[0049] The handheld piece 18 is used for the operator to hold the bone drill power handle for operation on the patient by using the bone drill power device. The electric control module 19 is a power control module of the bone drill power handle, which, in addition to the above-mentioned structure, further comprises the driving module 13, the speed reduction module 14, the drill bit identification module 15, the drill bit clamping piece 16 and the like. The electric control module 19 can control the on-off and forward-reverse rotation of the driving module 13. The distance measuring sensor 31 is used to detect the distance of the drill bit in real time, so that the operator can judge the drilling depth of the drill bit in time. The calibration sensor is used to monitor the direction of the drill bit in real time. If the advancing direction of the drill bit deviates, the operator can adjust the drill bit to return to the intended direction in time. The calibration sensor is installed on the electric control module and can directly transmit signals to the electric control module. The calibration sensor is not shown in the figure.

[0050] The distance measuring sensor 31 can adopt a laser displacement sensor. The distance measuring principle of the laser displacement sensor is that laser is obliquely emitted to the surface of the measured object at a fixed angle (such as 30°) to form a diffuse reflection spot. The reflected light is focused on the detector array through the receiving lens, and the position of the light spot changes linearly with the displacement of the object. The displacement amount is calculated through geometric triangular relationship (formula: displacement = baseline distance x tan (receiving angle)). In actual application, the laser displacement sensor usually includes a laser emitter, an optical system, a photoelectric detector and a signal processing circuit. Some models also support multiple output modes (such as on-off value and RS485 communication) and intelligent detection functions (such as two-point teaching mode). In the embodiment, the laser displacement sensor is further connected with a distance measuring circuit board 31, and the electric control module 19 is electrically connected with the distance measuring circuit board 31 and the display screen 40 through signal pins 41. It should be noted that the laser displacement sensor is indirectly electrically connected with the electric control module through the distance measuring circuit board, which can save the distance of wiring in the handle and avoid the problems of long circuit lines increasing assembly difficulty or electronic devices being easily damaged.

[0051] The calibration sensor can adopt a posture sensor. The posture sensor realizes three-dimensional space posture measurement through multi-sensor data fusion technology. Its core measurement components are a three-axis gyroscope, a three-axis accelerometer and a three-axis magnetometer. The three-axis gyroscope measures the angular velocity of the carrier around the X / Y / Z axis and obtains the rotation angle through integral operation. The three-axis accelerometer measures the components of the gravitational acceleration on each axis and calculates the static inclination angle (pitch / roll) through arctangent. The three-axis magnetometer senses the direction of the geomagnetic field and provides an absolute heading reference. It can feedback the angle change in real time and is used to feedback the drilling direction of the drill bit.

[0052] In actual implementation, when the bone drill power handle is in use, the depth of the drill bit's advancement can be detected in real time by a distance measuring sensor, and the detected signal is fed back through the electronic control module 19. The operator of the bone drill power handle can judge the depth of the drill bit's advancement based on the feedback signal and decide whether to continue drilling. In addition, when the bone drill power handle is in use, the direction of the drill bit's advancement is calibrated by a calibration sensor, and the position of the drill bit is fed back in real time through a display screen electrically connected to the electronic control module 19, making it easy to observe whether the direction of the drill bit's advancement has deviated. If the drill bit's drilling direction is not on the drill bit's axis, the operator can promptly adjust the drill bit's direction so that the drill bit's advancement direction is on the drill bit's axis.

[0053] In some embodiments, the handle 11 has a recessed portion at one end away from the drilling direction of the drill bit, the bottom end of the hopper body 20 is connected to the recessed portion, and the top end of the hopper body 20 protrudes from the top of the handle 11. For example, Figures 1 to 4 As shown, the recessed portion facilitates the installation of the chamber body 20 so that the chamber body 20 can be better integrated with the handle body 11, and can reduce the volume of the handle without affecting the signal emitted by the ranging sensor, while also not blocking the operator's line of sight, and the layout is relatively compact.

[0054] In some embodiments, a through hole 22 is provided at one end of the housing 20 facing the drilling direction of the drill bit, and the through hole 22 is connected to the accommodating cavity, and the ranging signal generated by the ranging sensor 31 is transmitted to the drilling direction of the drill bit through the through hole 22. For example, Figure 1 、 Figure 3 and Figure 4 As shown, the signal emitted by the distance measuring sensor 31 is transmitted through the through hole 22 to facilitate real-time detection of the depth of the drill bit. The distance measuring sensor 31 is set in the warehouse body 20 and located at the front of the warehouse body 20, which can timely and intuitively detect the depth of the drill bit in real time.

[0055] In some embodiments, a rear cover 21 is provided at the end of the hopper body 20 away from the drilling direction of the drill bit. The rear cover 21 is detachably connected to the rear end of the hopper body 20, and the ranging sensor 30 is detachably accommodated in the accommodating cavity of the hopper body 20.

[0056] In a specific embodiment, Figures 2 to 4As shown, the housing 20 is positioned above and behind the handle 11. A distance sensor 30 and a distance circuit board 31 are mounted within the housing 20. The distance sensor 30 is used to detect the depth of the drill bit in real time. This placement of the distance sensor 30 facilitates maintaining the distance sensor 30 parallel to the drilling direction, enabling accurate detection of the depth of the drill bit. A sensor housing 32 is provided around the distance sensor 30 to protect it and facilitate its installation and removal.

[0057] In some embodiments, a display screen 40 is provided at the rear end of the ranging sensor 30, the electronic control module 19 is electrically connected to the display screen 40, and the display screen 40 is provided at the end of the chamber body 20 away from the drilling direction of the drill bit. The ranging signal and the calibration signal are processed by the electronic control module 19 and then fed back through the display screen 40.

[0058] for example, Figure 4 As shown, the electronic control module is used to receive and process the ranging signal of the ranging sensor 31 and the calibration signal of the calibration sensor to generate ranging data and calibration data, which are ultimately displayed on the display screen 40. For example, the signal ultimately displayed by the ranging sensor 31 on the display screen 40 is specific data, which is provided to the operator for real-time judgment; the calibration signal ultimately displayed by the calibration sensor on the display screen 40 is a position point, and the display screen 40 can display the center point. If the position point (i.e., the calibration signal generated by the calibration sensor) and the center point coincide, it indicates that the drilling direction has not shifted. If the position point and the center point do not coincide, the drilling direction has shifted. At this time, the operator can swing the handle to adjust the position of the drill bit so that the position point and the center point coincide to keep the drill bit's forward direction from shifting. The display screen 40 is covered with a display screen cover 42 on the outside. The display screen cover 42 facilitates the fixed installation of the display screen 40. The sensor housing and the display screen cover 42 are snap-fitted together, so that the display screen 40 and the ranging sensor are first installed as a whole, and then assembled into the accommodating cavity after installation.

[0059] In some embodiments, the bin rear cover 21 is detachably connected to the rear end of the bin body 20, and the end of the bin rear cover 21 facing away from the drilling direction of the drill bit has a hollow portion, and the display screen 40 is provided in the hollow portion. Figure 2 and Figure 4 As shown, the display screen 40 is provided in the hollow portion. When the bone drill power device is in use, the display screen 40 is located just above the operator's hand. This position can always remain unobstructed when the bone drill power handle is in use, so that the operator can intuitively obtain the required signals.

[0060] In some embodiments, corresponding locking holes are provided on the warehouse body 20 and the warehouse back cover 21, and a locking tongue 23 is inserted into the locking hole to lock the warehouse body 20 and the warehouse back cover 21. The locking tongue 23 is connected to a locking plate 24 at one end on the inner side of the warehouse body 20 and is elastically tightened by the locking plate 24. A locking plate button 25 is provided on the outside of the warehouse body 20 and is aligned with the locking plate 24. Pressing the locking plate button 25 causes the locking plate 24 to be elastically compressed, and the locking tongue 23 moves out of the locking hole with the locking plate 24, releasing the locking of the warehouse body 20 and the warehouse back cover 21.

[0061] In a specific embodiment, Figure 4 and Figure 5 As shown, the housing 20 and the rear cover 21 are detachably connected, facilitating the easy assembly and disassembly of the distance sensor 30 and the display screen 40. Before use, the bone drill power device requires disinfection. To protect the distance sensor 30 and the display screen 40, the rear cover 21 can be opened and the distance sensor 30 and the display screen 40 inside removed. The bone drill power handle can then be disinfected and reassembled after disinfection. Specifically, the housing 20 and the rear cover 21 each have two corresponding locking holes, located in a straight line. Two locking tongues 23 extend into the two locking holes to lock the housing 20 and the rear cover 21. The locking plate 24 is U-shaped, with metal elastic plates at both ends. Opening outwards allows the two locking tongues 23 to be tightened. One end located inside the housing 20 engages with the end of the locking plate 24. When the ends of the locking plate 24 are tightened inward, the two locking tongues 23 are also moved inward. One end of the locking plate button 25 extends out of the housing 20, and the other end of the locking plate button 25 abuts against the side walls of the locking plate 24 at both ends. Pressing the locking plate button 25 from the outside of the housing 20 inward can control the ends of the locking plate 24 to tighten inward. When the rear cover 21 needs to be removed, the locking plate button 25 is pressed to elastically tighten the ends of the locking plate 24 inward. The ends of the locking plate 24 drive the locking tongue 23 inward and out of the locking hole, releasing the lock on the housing 20 and the rear cover 21, and the rear cover 21 can be removed from the housing 20.

[0062] In some embodiments, the handpiece 18 further includes a positioning component 60, wherein the calibration signal is displayed in the form of a cursor. The positioning component 60 is used to reset the calibration signal generated by the calibration sensor so that the cursor indicating the drilling direction of the drill bit returns to a preset starting position. In the present invention, the preset starting position is the center point mentioned above, for example, Figure 3 、 Figure 6 As shown, it is more reasonable to arrange the aligning component 60 on the handheld part, which is convenient for the operator to control the aligning component 60.

[0063] In some embodiments, the alignment component 60 includes an alignment base 62, an alignment button 63, an alignment spring 64 and a trigger module. The alignment base 62 is arranged inside the handpiece 18, one end of the alignment button 63 extends into the alignment base 62 and can slide relative to the alignment base 62, the alignment spring 64 is arranged in the alignment base 62, one end of the alignment spring 64 abuts against a side wall of the alignment base 62, and the other end abuts against the alignment button 63 and extends into one end of the alignment base 62, and the other end of the alignment button 63 extends out of the outer surface of the handpiece 18, the trigger module is arranged at one end of the alignment spring 64 close to the alignment button 63, and the trigger module can move toward the other end of the alignment spring 64 as the alignment button 63 slides.

[0064] for example, Figure 3 、 Figure 6 、 Figure 7 As shown, the locating button 63 is mounted within the handpiece 18 via an locating base 62. The locating button 63 may slide along the locating base 62. To allow it to rebound after being pressed, an locating spring 64 is provided within the locating base 62 to support the locating button 63. The ends of the locating spring 64 respectively abut against the inner wall of the locating base 62 and the end of the locating button 63 extending into the locating base 62. To facilitate pressing the locating button 63, one end of the locating button 63 extends from the outer surface of the locating base 62 and the handpiece 18. A trigger module is located at the end of the locating button 63 extending into the locating base 62. The locating assembly 60 is triggered by an operator pressing the locating button 63. The triggering principle is Hall effect control, which enables high-precision conversion of magnetic signals into electrical signals. The trigger module can utilize an locating magnet 65, which is embedded in the end of the locating button 63 located within the locating base 62 and secured by a magnet base 66.

[0065] In some embodiments, the electronic control module 19 is arranged inside the handpiece 18 near the alignment group base, the electronic control module 19 is provided with a trigger element, the alignment component 60 is electrically connected to the electronic control module 19, and the trigger module is driven by the alignment button 63 to approach the electronic control module 19 and act on the trigger element to reset the calibration signal of the calibration sensor to zero.

[0066] for example, Figure 3 、 Figure 6 、 Figure 7As shown, the trigger element can be a calibration keypad 61, which is fixed to an alignment base 62 and aligned with an alignment magnet 65. Pressing an alignment button 63 brings the alignment magnet 65 close to the calibration keypad 61. The magnetic signal provided by the alignment magnet 65 is converted into an electrical signal upon approaching the calibration keypad 61, and the signal data is transmitted. The calibration keypad 61 is electrically connected to the electronic control module 19. The electronic control module 19 receives and executes the calibration signal reset operation through the calibration keypad 61, causing the drill bit drilling direction cursor on the display screen 40 to return to the preset starting position.

[0067] In some embodiments, the bone drill power handle in this solution has a drive motor disposed in the handle body 11, and a switch assembly 50 is disposed in the handpiece 18. The switch assembly 50 includes a gear switching unit and a button unit. The gear switching unit has the function of switchable gears. The gear switching unit is electrically connected to the electronic control module 19 and is used to control the forward or reverse rotation of the drive motor according to the switched gear; the button unit is electrically connected to the electronic control module 19 and is used to control the output energy of the drive motor according to the gear switched by the gear switching unit.

[0068] Specifically, the button unit includes a switch base 51, a switch button 52, a compression spring 521 and an anti-rotation pin 522. The switch base 51 is fixed in the handpiece 18. One end of the switch button 52 extends into the switch base 51 and is slidable relative to the switch base 51. The other end of the switch button 52 extends out of the handpiece 18, and a trigger is provided at the end of the switch button 52 extending into the switch base 51. The electric control module 19 is provided on the opposite side of the switch base 51, and the electric control module 19 is provided with a sensing element. Driven by the switch button 52, the trigger approaches the sensing element and is sensed by the sensing element to control the forward or reverse rotation of the drive motor. A compression spring 521 is mounted on the portion of the switch button 52 that extends into the switch base 51. The switch button 52 is provided with a boss 526. One end of the compression spring 521 abuts against the inner wall of the switch base 51, while the other end abuts against the boss 526. The compression spring 521 forces the trigger member toward or away from the sensing element. An anti-rotation pin 522 is fixed to the switch base 51 at one end. The switch button 52 is provided with an axially oriented slot, into which the anti-rotation pin 522 extends, limiting circumferential rotation of the switch button 52 during a press without restricting axial sliding of the switch button 52 during a press. A first sleeve 523 and a second sleeve 524 are provided on the sidewall of the switch base 51, corresponding to the position of the switch button 52. The switch button 52 passes through the first and second sleeves 523, 524 and is slidably connected within them.

[0069] Specifically, the gear shift unit includes a reversing rod 53, a rocker arm 54, and a tension spring 542. One end of the rocker arm 54 is fixed to the middle of the reversing rod 53, and its axis is set at an angle to the axis of the reversing rod 53. The rocker arm 54 can swing with the movement of the reversing rod 53, and the gear shift is switched by the rocker arm 54's swing. The reversing rod 53 extends through the power handle in a direction perpendicular to the axis of the button unit and is slidable relative to the power handle. A switching magnet is embedded in the other end of the rocker arm 54. A magnetic sensing element is installed in the electronic control module 19 corresponding to the position of the rocker arm 54. The gear shift is switched by the switching magnet and the magnetic sensing element. A first tension spring fixing pin 543 is fixed to one end of the rocker arm 54 on the switch base 51, and a second tension spring fixing pin 544 is fixed to the other end of the rocker arm 54. The ends of the tension spring 542 are fixedly connected to the first and second tension spring fixing pins 543 and 544, respectively. The tension spring 542 is used to fix the position of the rocker arm 54 after it swings.

[0070] In this solution, the switch base 51 features a pivot pin 541 that rotatably connects to the middle of a rocker arm 54. Movement of the reversing rod 53 drives one end of the rocker arm 54, while the other end of the rocker arm 54 can swing freely within the constraints of the pivot pin 541. The trigger element on the switch button 52 acts on the sensing element on the electronic control module 19, while the switching magnet on the rocker arm 54 acts on the magnetic sensing element on the electronic control module 19. Both utilize the Hall effect control principle, which enables high-precision conversion of magnetic signals into electrical signals. Control is achieved by applying the magnetic signal generated by the proximity of the magnet to the electronic control module 19.

[0071] In some embodiments, the handle body 11 includes a handle shell 12 and an output sleeve 17. The output sleeve 17 is detachably connected to the handle shell 12. The sleeve is provided with a drive module 13, a speed reduction module 14 and a drill identification module 15. The drive module 13 can provide output power to the bone drill power handle. The front end of the output sleeve 17 is provided with a drill clamp 16. For example, Figure 3 As shown, the output sleeve 17 can be pre-installed with the drive module 13, the reduction module 14 and the drill bit identification module 15, and then the output sleeve 17 is assembled into the handle housing 12. This makes the assembly of the drive module 13, the reduction module 14 and the drill bit identification module 15 convenient and quick, and can also achieve better sealing. Among them, the drive module specifically uses a drive motor.

[0072] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A bone drill power handle, used to connect with a drill bit to provide power for the drill bit, characterized in that: The power handle comprises: handle body; A handpiece is connected to the bottom of the handle body, and the center line of the handpiece is arranged at an angle to the axis of the handle body; The chamber body is provided on the handle body and has a receiving cavity; a distance measuring sensor housed in the accommodating cavity of the chamber body, the distance measuring sensor being configured to generate a distance measuring signal, the transmission direction of the distance measuring signal being oriented toward the drilling direction of the drill bit, so as to obtain the drilling depth of the drill bit in real time based on the distance measuring signal; a calibration sensor, housed in the handle or the handpiece, for generating a calibration signal, wherein the calibration signal indicates the drilling direction of the drill bit in response to the movement of the drill bit; The electric control module is housed in the handle body or the handpiece, and is electrically connected to the distance measuring sensor and the calibration sensor respectively, for receiving and processing the distance measuring signal of the distance measuring sensor and the calibration signal of the calibration sensor and feeding back the same.

2. The bone drill power handle according to claim 1, characterized in that: The end of the handle body away from the drilling direction of the drill bit has a recessed portion, the bottom end of the silo body is connected to the recessed portion, and the top end of the silo body protrudes from the top of the handle body.

3. The bone drill power handle according to claim 1, characterized in that: A through hole is provided at one end of the chamber body facing the drilling direction of the drill bit, and the through hole is communicated with the accommodating cavity. The ranging signal generated by the ranging sensor is transmitted toward the drilling direction of the drill bit through the through hole.

4. The bone drill power handle according to claim 1, characterized in that: A warehouse rear cover is provided at one end of the warehouse body away from the drilling direction of the drill bit. The warehouse rear cover is detachably connected to the rear end of the warehouse body. The distance measuring sensor is detachably accommodated in the accommodating cavity of the warehouse body.

5. The bone drill power handle according to claim 4, characterized in that: A display screen is provided at the rear end of the ranging sensor, and the electronic control module is electrically connected to the display screen. The display screen is provided at the end of the chamber body away from the drilling direction of the drill bit. The ranging signal and the calibration signal are processed by the electronic control module and then fed back through the display screen.

6. The bone drill power handle according to claim 5, characterized in that: The bin rear cover is detachably connected to the rear end of the bin body, and an end of the bin rear cover facing away from the drilling direction of the drill bit has a hollow portion, and the display screen is arranged in the hollow portion.

7. The bone drill power handle according to claim 6, characterized in that: The warehouse body and the warehouse rear cover are both provided with locking holes with corresponding positions, and a locking tongue is inserted into the locking hole to lock the warehouse body and the warehouse rear cover. One end of the locking tongue located on the inner side of the warehouse body is connected to a locking plate and is elastically tightened by the locking plate. A locking plate button aligned with the locking plate is provided on the outside of the warehouse body. Pressing the locking plate button causes the locking plate to be elastically compressed, and the locking tongue moves out of the locking hole with the locking plate, releasing the lock on the warehouse body and the warehouse rear cover.

8. The bone drill power handle according to claim 1, characterized in that: It also includes a positioning component arranged on the handpiece, and the calibration signal is fed back in the form of a cursor. The positioning component is used to reset the calibration signal generated by the calibration sensor to zero so that the cursor indicating the drilling direction of the drill bit returns to a preset starting position.

9. The bone drill power handle according to claim 8, characterized in that: The alignment component includes an alignment base, an alignment button, an alignment spring and a trigger module. The alignment base is arranged inside the handpiece, one end of the alignment button extends into the alignment base and can slide relative to the alignment base, the alignment spring is arranged in the alignment base, one end of the alignment spring abuts against a side wall of the alignment base, and the other end abuts against one end of the alignment button extending into the alignment base, and the other end of the alignment button extends out of the outer surface of the handpiece, the trigger module is arranged at one end of the alignment spring close to the alignment button, and the trigger module can move toward the other end of the alignment spring as the alignment button slides.

10. The bone drill power handle according to claim 9, characterized in that: The electronic control module is arranged inside the handpiece near the positioning base. A trigger element is provided on the positioning base. The trigger element is electrically connected to the electronic control module. Driven by the positioning button, the trigger module approaches and acts on the trigger element to reset the calibration signal of the calibration sensor to zero.

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