Orthopedic saw convenient to clean for operation

Abstract

The invention provides a surgical orthopedic saw convenient to clean. The surgical orthopedic saw comprises a barrel; the extension arm is mounted on the inner wall of the front end of the barrel in a threaded manner and is of a hollow structure; the connecting cylinder rotates in the extension arm and is matched with the extension arm, and a mounting seat is mounted in the connecting cylinder in a reciprocating sliding manner in the longitudinal direction; the saw blade is used for performing bone sawing operation in an operation, is fixedly mounted on the mounting seat through screws, and is convenient to disassemble and clean; the handle is arranged at the bottom of the cylinder body, the handle and the cylinder body are integrally formed, the handle is provided with a vertically-through battery jar, a battery holder is installed in the battery jar, and a lithium battery is arranged in the battery holder. According to the orthopedic saw convenient to clean for the operation, the angle of the saw blade can be adjusted, chippings can be cleaned, the safety and efficiency of the operation can be greatly improved, and better operation experience is brought to doctors and patients.

Description

Technical Field

[0001] The invention belongs to the technical field of orthopedic instruments, and in particular relates to an orthopedic saw used in surgery and is easy to clean. Background Art

[0002] In orthopedic surgery, bone saws are commonly used medical instruments for precise cutting of bones. However, existing bone saws have some obvious limitations in design. First, traditional bone saws usually cannot adjust the angle of the saw blade, which means that when doctors need to cut bones at different angles in a limited operating space, they need to replace bone saws with different functions, which not only increases the complexity and time cost of the operation, but may also affect the accuracy and safety of the operation. Secondly, the debris generated by existing bone saws during the bone sawing process is often not effectively cleaned up. These debris may interfere with the doctor's surgical process and may even enter the wound, increasing the risk and difficulty of the operation. . Summary of the invention

[0003] In order to solve the technical problems that the bone saw cannot adjust the cutting angle of the saw blade and cannot clean the debris, the present invention provides an orthopedic saw that is easy to clean for surgery.

[0004] The present invention is achieved in this way: an orthopedic saw for surgery that is easy to clean comprises: a barrel; an extension arm threadedly mounted on the inner wall of the front end of the barrel, the extension arm being a hollow structure; a connecting barrel rotating in the extension arm, the connecting barrel being adapted to the extension arm, and a mounting seat being mounted in the connecting barrel along a longitudinal reciprocating sliding manner; a saw blade for performing bone sawing operations during surgery, the saw blade being fixedly mounted on the mounting seat by screws, and being easy to disassemble for cleaning; a handle arranged at the bottom of the barrel, the handle being integrally formed with the barrel, a battery slot penetrating up and down is provided on the handle, a battery seat being mounted in the battery slot, and a lithium battery being built in the battery seat; wherein the rotation of the connecting barrel is used to adjust the angle of the saw blade, and the longitudinal reciprocating sliding of the mounting seat is used to drive the saw blade to slide reciprocally for bone sawing operations; a driving mechanism is arranged in the barrel for driving the mounting seat to move reciprocally, so as to drive the saw blade to move reciprocally.

[0005] Preferably, the driving mechanism includes: a double-axis motor arranged in the cylinder body, used for providing driving force for the bone sawing operation of the saw blade; a first rotating shaft and a second rotating shaft that are both rotatably installed in the extension arm, one end of the first rotating shaft is connected to the end of the second rotating shaft that is close to each other, and the first rotating shaft and the second rotating shaft are coaxially arranged; two first spur gears that are respectively fixedly sleeved on the end of the first rotating shaft away from the second rotating shaft and an output shaft of the double-axis motor, and the two first spur gears are meshed; a central shaft that is rotatably installed on the inner wall of one side of the extension arm, and the central shaft is perpendicular to the second rotating shaft; two bevel gears that are respectively fixedly sleeved on the end of the second rotating shaft away from the first rotating shaft and on the central shaft, and the two second bevel gears are meshed; a disc that is fixedly installed at one end of the central shaft, and an eccentric shaft is fixedly installed on the side of the disc away from the central shaft; a hinged rod that is rotatably sleeved on the eccentric shaft, and the other end of the hinged rod is hinged to a hinged seat fixedly installed on one end of the mounting seat; wherein the disc, the eccentric shaft and the hinged rod are all located in the connecting cylinder.

[0006] Preferably, mounting plates are fixedly installed on the top and bottom of the connecting tube by screws, and sliders are fixedly installed on the two mounting plates. Slide grooves are opened on the top and bottom of the mounting seat. The two sliders extend into the two slide grooves respectively and are slidably connected with the inner walls of the slide grooves. Through the connection between the sliders and the slide grooves, the mounting seat can only slide axially in the connecting tube but cannot rotate, thereby improving the stability of the reciprocating movement of the saw blade.

[0007] Preferably, a spline groove is provided at one end of the first rotating shaft, and a spline shaft is provided at one end of the second rotating shaft. The spline shaft extends to the spline groove and engages with the spline groove, so as to facilitate the installation of the first rotating shaft and the second rotating shaft.

[0008] Preferably, a support seat is fixedly installed in the cylinder, and a mounting port is provided on the top of the cylinder and a pressure cover is fixedly installed by screws, a plurality of positioning grooves are provided at the bottom of the pressure cover and the top of the support seat, and rubber pads are provided in the positioning grooves, and a plurality of positioning columns are installed at the top and bottom of the dual-axis motor, and the plurality of positioning columns are respectively inserted into the plurality of positioning grooves for convenient and quick installation and fixation of the dual-axis motor.

[0009] Preferably, an insulating seat is provided at the bottom of the dual-axis motor, and two conductive cylinders are installed on the insulating seat. The two power lines inside the dual-axis motor are electrically connected to the two conductive cylinders respectively. Two conductive rods are installed on the top of the support seat, and the two conductive rods are respectively inserted into the two conductive cylinders, so that the power lines of the dual-axis motor can be quickly connected while the dual-axis motor is installed. A circuit board is installed at the bottom of the cylinder, and the circuit board is located in the handle, and two first conductive contacts are installed at the bottom of the circuit board. Two conductive sheets electrically connected to the two poles of the built-in lithium battery are installed on the top of the battery seat, and the two first conductive contacts are respectively in contact with the two conductive sheets and electrically conductive, wherein a switch assembly for controlling the start and stop of the dual-axis motor is also installed on the handle.

[0010] Preferably, two conductive plates are installed at the bottom of the circuit board for electrically connecting with the switch assembly, and the switch assembly includes: an installation frame fixedly installed on the inner wall of one side of the handle, a fixed block fixedly installed in the installation frame; a sliding rod slidably installed on the fixed block, a sliding sleeve on the sliding rod is provided with a spring; a conductive block fixedly installed at one end of the sliding rod, two second conductive contacts are provided on one side of the conductive block, and the two second conductive contacts are respectively adapted to the two conductive plates; a button fixedly installed at one end of the sliding rod away from the conductive block, the button extends outside the handle and is sealed and slidably connected to the handle.

[0011] Preferably, a locking assembly is provided on the extension arm for locking the mounting seat to fix it after the mounting seat is rotated to adjust the angle, and the locking assembly includes: a mounting circular plate arranged outside the extension arm; a plurality of connecting rods fixedly mounted on one side of the mounting circular plate, the plurality of connecting rods extending into the extension arm and being sealed and slidably connected to the extension arm; an annular pressure plate movably sleeved on the central axis and fixedly mounted on the same end of the plurality of connecting rods, the annular pressure plate tightly abutting the mounting seat for locking and fixing the mounting seat; a bolt rod passing through the mounting hole on the mounting circular plate and threadedly connected to the threaded groove starting from one side of the extension arm, one end of the bolt rod being provided with an integrally formed hand-tightened knob for pressing the mounting circular plate tightly.

[0012] Preferably, buckle assemblies are provided on both sides of the battery seat for fixing the battery seat to the handle, and the buckle assembly includes: a connecting block provided on one side of the battery seat, the connecting block and the battery seat are integrally formed; an elastic pressing piece integrally formed with the connecting block, a clamping block is provided on one side of the elastic pressing piece, and clamping slots are provided on both sides of the handle, and the clamping block is clamped into the clamping slot on one side of the handle.

[0013] Preferably, a connecting hole is provided at one end of the saw blade, and suction holes are provided between the saw teeth of the saw blade, the suction hole is connected to the connecting hole, a mounting groove is provided at one end of the mounting seat, one end of the saw blade is inserted into the mounting groove and sealed with the inner wall of the mounting groove, the connecting hole is connected to the mounting groove, a connecting hole connected to the mounting groove is provided on one side of the mounting seat, a first connecting tube is installed on the connecting hole, the other end of the first connecting tube is sealed and a second connecting tube is rotatably sleeved, the center of rotation of the first connecting tube on the second connecting tube is coaxial with the rotation of the connecting tube and the central axis, and a cleaning component is provided in the cylinder body for absorbing and cleaning debris generated when the saw blade saws bones, thereby reducing the influence of the debris on the operation.

[0014] Preferably, the cleaning assembly includes: a partition fixedly installed in the extension arm and sealed with the inner wall of the extension arm; a third shaft rotatably installed on the partition, the third shaft being sealed with the partition; two second spur gears fixedly mounted on the other output shaft of the dual-axis motor and on one end of the third shaft, the two second spur gears being meshed with each other; a volute fixedly installed in the cylinder, the volute being sealed with the inner wall of the cylinder, an entry chamber being formed between the volute and the partition, a mounting port being provided on one side of the cylinder, the other end of the second connecting pipe being sealingly connected with the mounting port, and the mounting port being communicated with the entry chamber; a wind wheel arranged in the volute and fixedly mounted on one end of the third shaft; a discharge port arranged on the volute, for discharging debris extracted by the negative pressure of the stroke when the wind wheel rotates.

[0015] Preferably, the rear end of the cylinder is open and a dust box is threadedly mounted thereon, a filter bag is provided in the dust box for filtering debris, the rear end of the dust box is open and a rear cover is fixedly mounted thereon, an exhaust hole is provided on the rear cover for exhausting the extracted air.

[0016] Preferably, an injection tube connected to the entrance cavity is fixedly installed on the top of the cylinder, which is used to inject cleaning and disinfecting water into the injection tube through an external pump after the operation is completed and the debris in the dust box is cleaned, so as to clean and disinfect the internal channel, and a sealing cover is threadedly installed on the injection tube. Beneficial Effects

[0017] The orthopedic saw of the present invention can conveniently adjust the angle of the saw blade, and can meet the bone cutting requirements at different angles without replacing bone saws of different models or functions, thereby greatly improving the flexibility and efficiency of the surgery and reducing the difficulty of operation for doctors. The present invention also integrates a set of efficient debris cleaning mechanisms, which can absorb and collect the debris generated in real time during the bone sawing process, effectively avoiding the interference of debris on the surgical vision and possible safety risks. It not only improves the cleanliness of the operation, but also ensures the smooth progress of the operation; The orthopedic saw of the present invention is designed with cleaning and disinfection requirements in mind. Cleaning and disinfection water can be conveniently injected through the injection tube to thoroughly clean and disinfect the internal channel, thereby ensuring the hygiene and safety of surgical instruments.

[0018] The orthopedic saw of the present invention is also equipped with a locking assembly and a buckle assembly, which can conveniently lock the saw blade angle and fix the battery holder, making the entire surgical process more stable and reliable. At the same time, the design of the switch assembly also ensures the convenience and safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the side structure of an orthopedic saw for surgery that is easy to clean provided by the present invention; Figure 2 A schematic diagram of a side cross-sectional structure of an orthopedic saw that is easy to clean for surgery provided by the present invention; Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG. Figure 4 for Figure 2 An enlarged schematic diagram of the structure of part B shown in FIG. Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part C shown in FIG. Figure 6 for Figure 2 An enlarged structural diagram of part D shown in FIG. Figure 7 for Figure 6 An enlarged structural diagram of part E shown in FIG. Figure 8 for Figure 6 An enlarged structural diagram of part F shown in FIG. Fig. 9 for Figure 6 An enlarged structural diagram of the G portion shown in FIG. Fig.10 for Figure 6 An enlarged structural diagram of the H portion shown in FIG. Fig.11 Another side view of the structure of an orthopedic saw that is easy to clean for surgery provided by the present invention; Fig.12 Another side view of the cross-sectional structure of an orthopedic saw that is easy to clean for surgery provided by the present invention; Fig.13 for Fig.12 An enlarged structural diagram of part I shown in FIG. Fig.14 It is a schematic diagram of a top view and cross-section structure of the present invention; Fig.15 for Fig.14 An enlarged structural diagram of the J portion shown in FIG. Fig.16 It is a schematic diagram of the three-dimensional structure of the connecting tube in the present invention; Fig.17 is a schematic diagram of the three-dimensional structure of the saw blade in the present invention; Fig.18 is a schematic diagram of a top view of the structure of the conductive block and the second conductive contact in the present invention; Fig.19 A schematic diagram of a usage scenario of an orthopedic saw that is easy to clean for surgery provided by the present invention.

[0020] Figure numerals: 1, cylinder; 2, extension arm; 3, connecting cylinder; 4, saw blade; 5, handle; 6, battery holder; 7, double-axis motor; 8, first rotating shaft; 9, first straight gear; 10, second rotating shaft; 11, mounting seat; 12, middle shaft; 13, bevel gear; 14, disc; 15, eccentric shaft; 16, hinged rod; 17, hinged seat; 18, mounting plate; 19, slider; 20, spline shaft; 21, pressure cover; 22, support seat; 23, positioning column; 24, conductive cylinder; 25, conductive rod; 26, circuit board; 27, first conductive contact; 28, conductive sheet; 29, connecting block; 30, elastic pressing sheet; 31, Card block; 32, conductive plate; 33, mounting frame; 34, fixed block; 35, slide rod; 36, conductive block; 37, second conductive contact; 38, spring; 39, button; 40, mounting circular plate; 41, connecting rod; 42, annular pressure plate; 43, bolt rod; 44, hand-tightening knob; 45, connecting hole; 46, suction hole; 47, first connecting pipe; 48, second connecting pipe; 49, partition; 50, volute; 51, wind wheel; 52, discharge port; 53, inlet cavity; 54, dust box; 55, filter bag; 56, rear cover; 57, second spur gear; 58, injection pipe; 59, sealing cover; 60, third rotating shaft. DETAILED DESCRIPTION

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification of this application and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0022] The embodiment of the present invention provides an orthopedic saw that is easy to clean for surgery, such as Figure 1-19As shown, the orthopedic saw for surgery that is easy to clean comprises: a barrel 1; an extension arm 2 threadedly mounted on the inner wall of the front end of the barrel 1, the extension arm 2 being a hollow structure; a connecting barrel 3 rotating in the extension arm 2, the connecting barrel 3 being adapted to the extension arm 2, and a mounting seat 11 being mounted in the connecting barrel 3 for longitudinal reciprocating sliding; a saw blade 4 for performing bone sawing operations during surgery, the saw blade 4 being fixedly mounted on the mounting seat 11 by screws, and being easy to disassemble for cleaning; a handle 5 arranged at the bottom of the barrel 1, the handle 5 being integrally formed with the barrel 1, a battery slot running through the barrel 1 from top to bottom being provided on the handle 5, a battery seat 6 being mounted in the battery slot, and a lithium battery being built in the battery seat 6; wherein the rotation of the connecting barrel 3 is used to adjust the angle of the saw blade 4, and the longitudinal reciprocating sliding of the mounting seat 11 is used to drive the saw blade to slide reciprocally for bone sawing operations; a driving mechanism is arranged in the barrel 1 for driving the mounting seat 11 to move reciprocally, so as to drive the saw blade 4 to move reciprocally.

[0023] In this embodiment, the orthopedic saw includes a barrel 1 as the main body of the whole device; an extension arm 2 is threadedly mounted on the inner wall of the front end of the barrel 1 and is a hollow structure, which is convenient for the installation and adjustment of the internal components; a connecting barrel 3 is rotatably mounted in the extension arm 2 and adapted to the extension arm 2, and a mounting seat 11 is mounted in the interior thereof in a longitudinal reciprocating sliding manner, so as to realize the flexible movement of the saw blade 4. The saw blade 4 is fixedly mounted on the mounting seat 11 by screws. This design facilitates the removal of the saw blade 4 for cleaning and maintains the cleanliness of the surgical instrument. A grip 5 is arranged at the bottom of the barrel 1 and is integrally formed with the barrel 1, providing a stable grip. A battery slot is provided in the grip 5 for installing a battery holder 6, and the battery holder 6 has a built-in lithium battery to provide power support for the whole device. The rotation function of the connecting barrel 3 enables the angle of the saw blade 4 to be adjusted according to the surgical requirements, without the need to replace different types of bone saws, thereby improving the flexibility and efficiency of the surgery. The longitudinal reciprocating sliding of the mounting seat 11 drives the reciprocating movement of the saw blade 4, realizing precise bone sawing operations. In addition, a driving mechanism is also provided in the cylinder body 1 for driving the mounting seat 11 to move back and forth, thereby driving the saw blade 4 to perform bone sawing operations.

[0024] In a further preferred embodiment of the present invention, the driving mechanism includes: a double-axis motor 7 arranged in the barrel 1, which is used to provide driving force for the bone sawing operation of the saw blade 4; a first rotating shaft 8 and a second rotating shaft 10 both rotatably installed in the extension arm 2, one end of the first rotating shaft 8 is connected to an end of the second rotating shaft 10 close to each other, and the first rotating shaft 8 and the second rotating shaft 10 are coaxially arranged; two first straight gears 9 respectively fixedly sleeved on an end of the first rotating shaft 8 away from the second rotating shaft 10 and an output shaft of the double-axis motor 7, and the two first straight gears 9 are meshed; a middle rotating shaft 8 and a second rotating shaft 10 rotatably installed on the inner wall of one side of the extension arm 2 Axle 12, the middle axis 12 and the second rotating shaft 10 are both perpendicular; two bevel gears 13 fixedly mounted on the end of the second rotating shaft 10 away from the first rotating shaft 8 and the middle axis 12, and the two second bevel gears 13 are meshed with each other; a disc 14 fixedly mounted at one end of the middle axis 12, an eccentric shaft 15 is fixedly mounted on the side of the disc 14 away from the middle axis 12; an articulated rod 16 rotatably mounted on the eccentric shaft 15, the other end of the articulated rod 16 is articulated with an articulated seat 17 fixedly mounted on one end of the mounting seat 11; wherein the disc 14, the eccentric shaft 15 and the articulated rod 16 are all located in the connecting tube 3.

[0025] In this embodiment, the design of the driving mechanism ensures that the saw blade 4 can perform bone sawing operations efficiently and stably. Specifically, the driving mechanism includes a dual-axis motor 7 arranged in the barrel 1, which is the power source of the entire driving system and provides a strong driving force for the saw blade 4 to perform bone sawing operations. In the extension arm 2, we cleverly installed the first rotating shaft 8 and the second rotating shaft 10, both of which can rotate freely. One end of the first rotating shaft 8 is connected to the end of the second rotating shaft 10 that is close to each other, and the two are coaxially arranged. Such a design enables them to work together to transmit power. In order to transmit the power of the dual-axis motor 7 to the first rotating shaft 8, we fixedly sleeved two first straight gears 9 on the end of the first rotating shaft 8 away from the second rotating shaft 10 and on an output shaft of the dual-axis motor 7, and the two first straight gears 9 are meshed with each other, thereby ensuring the smooth transmission of power. Next, in order to transfer power from the second rotating shaft 10 to the middle shaft 12, we fixedly sleeve two bevel gears 13 on the end of the second rotating shaft 10 away from the first rotating shaft 8 and the middle shaft 12, respectively. The two bevel gears 13 mesh with each other to achieve the reversal and transmission of power. The middle shaft 12 is rotatably mounted on the inner wall of one side of the extension arm 2 and is perpendicular to the second rotating shaft 10. This design makes the entire drive mechanism more compact and efficient. At one end of the middle shaft 12, we fixedly install a disc 14, and the side of the disc 14 away from the middle shaft 12 is fixedly installed with an eccentric shaft 15. An articulated rod 16 is rotatably sleeved on the eccentric shaft 15, and the other end of the articulated rod 16 is hinged to an articulated seat 17 fixedly installed on one end of the mounting seat 11. This design allows the eccentric shaft 15 to drive the articulated rod 16 to reciprocate when the disc 14 rotates, and then drive the mounting seat 11 and the saw blade 4 to perform reciprocating bone sawing operations through the articulated seat 17. It is worth mentioning that the disc 14, the eccentric shaft 15 and the hinged rod 16 are all located in the connecting tube 3. Such a design not only protects these key components from external interference, but also makes the entire driving mechanism more compact and easy to maintain.

[0026] In a further preferred embodiment of the present invention, mounting plates 18 are fixedly installed on the top and bottom of the connecting tube 3 by screws, and sliders 19 are fixedly installed on the two mounting plates 18, and sliding grooves are provided on the top and bottom of the mounting seat 11, and the two sliders 19 extend into the two sliding grooves respectively and are slidably connected to the inner walls of the sliding grooves. Through the connection between the sliding grooves of the sliders 19, the mounting seat 11 can only slide axially in the connecting tube 3 but cannot rotate, thereby improving the stability of the reciprocating movement of the saw blade 4.

[0027] In this embodiment, in order to improve the stability of the reciprocating movement of the saw blade 4, the connection mode between the connecting tube 3 and the mounting seat 11 is optimized. Specifically, the top and bottom of the connecting tube 3 are fixedly installed with mounting plates 18 by screws. These two mounting plates 18 not only enhance the structural strength of the connecting tube 3, but also provide a solid foundation for its connection with the mounting seat 11. On each mounting plate 18, we have fixedly installed a slider 19, which is exquisitely designed and can be accurately embedded in the slide groove opened on the mounting seat 11. When the mounting seat 11 slides axially in the connecting tube 3, the sliding connection between the slider 19 and the inner wall of the slide groove ensures the stability and accuracy of such movement. More importantly, this design allows the mounting seat 11 to only slide axially in the connecting tube 3, but cannot rotate, thereby effectively improving the stability of the reciprocating movement of the saw blade 4. Under such a design, when the dual-axis motor 7 is started, it is transmitted through a series of gears and shafts, and finally drives the mounting seat 11 and the saw blade 4 to reciprocate. Since the mounting seat 11 is restricted to a state where it can only slide in the axial direction, the reciprocating movement of the saw blade 4 becomes more stable and reliable, which is of great significance for improving the accuracy and safety of the operation.

[0028] In a further preferred embodiment of the present invention, a spline groove is provided at one end of the first rotating shaft 8, and a spline shaft 20 is provided at one end of the second rotating shaft 10. The spline shaft 20 extends to the spline groove and engages with the spline groove, which facilitates the installation of the first rotating shaft 8 and the second rotating shaft 10.

[0029] In this embodiment, in order to optimize the connection between the first rotating shaft 8 and the second rotating shaft 10, we adopt the meshing design of the spline groove and the spline shaft 20. Specifically, a spline groove is cleverly opened at one end of the first rotating shaft 8, and a spline shaft 20 is correspondingly set at one end of the second rotating shaft 10. During the installation process, the spline shaft 20 easily extends into the spline groove and is tightly meshed with the spline groove. This meshing design of the spline groove and the spline shaft 20 not only ensures a stable connection between the first rotating shaft 8 and the second rotating shaft 10, but also greatly simplifies the installation process. Doctors or technicians can quickly and accurately complete the installation of the first rotating shaft 8 and the second rotating shaft 10 without complicated tools and operations, thereby improving the assembly efficiency and ease of use of surgical instruments. In addition, the meshing of the spline groove and the spline shaft 20 also provides good transmission performance, ensuring the smooth transmission of power between the first rotating shaft 8 and the second rotating shaft 10. This is crucial to maintaining the stable operation of the saw blade 4 and accurate bone sawing.

[0030] In a further preferred embodiment of the present invention, a support seat 22 is fixedly installed in the cylinder 1, and a mounting port is provided on the top of the cylinder 1 and a pressure cover 21 is fixedly installed by screws, a plurality of positioning grooves are provided at the bottom of the pressure cover 21 and the top of the support seat 22, and rubber pads are provided in the positioning grooves, and a plurality of positioning columns 23 are installed at the top and bottom of the dual-axis motor 7, and the plurality of positioning columns 23 are respectively inserted into the plurality of positioning grooves for convenient and quick installation and fixation of the dual-axis motor 7.

[0031] In this embodiment, through the cooperation of the positioning groove and the positioning column 23, and the buffering effect of the rubber pad, the dual-axis motor 7 can be quickly and stably installed in the barrel 1, improving the installation efficiency and stability. This design simplifies the installation process, ensures the stable operation of the motor, and improves the practicality and reliability of the overall equipment.

[0032] In a further preferred embodiment of the present invention, an insulating seat is provided at the bottom of the dual-axis motor 7, and two conductive cylinders 24 are installed on the insulating seat. The two power lines inside the dual-axis motor 7 are electrically connected to the two conductive cylinders 24 respectively. Two conductive rods 25 are installed on the top of the support seat 22. The two conductive rods 25 are respectively inserted into the two conductive cylinders 24, so that the power lines of the dual-axis motor 7 can be quickly connected while the dual-axis motor 7 is installed. A circuit board 26 is installed at the bottom of the cylinder body 1. The circuit board 26 is located in the handle 5, and two first conductive contacts 27 are installed at the bottom of the circuit board 26. Two conductive sheets 28 electrically connected to the two poles of the built-in lithium battery are installed on the top of the battery seat 6. The two first conductive contacts 27 are respectively in contact with the two conductive sheets 28 and are electrically conductive. A switch component for controlling the start and stop of the dual-axis motor 7 is also installed on the handle 5.

[0033] In this embodiment, an insulating seat is provided at the bottom of the dual-axis motor 7, which is equipped with two conductive cylinders 24 and connected to the power line in the motor. A conductive rod 25 is installed on the top of the support seat 22, and the conductive cylinder 24 is inserted to achieve quick connection. A circuit board 26 is installed at the bottom of the cylinder 1, which is located in the handle 5, and has a first conductive contact 27 at the bottom. A conductive sheet 28 is installed on the top of the battery holder 6, which is connected to the lithium battery. The contact is in contact with the conductive sheet and is conductive. A switch assembly is installed on the handle 5 to control the start and stop of the dual-axis motor 7. This design realizes the rapid installation of the dual-axis motor and the convenient connection of the power line, while ensuring the stability and safety of the circuit, and improving the practicality and reliability of the equipment.

[0034] In a further preferred embodiment of the present invention, two conductive plates 32 are installed at the bottom of the circuit board 26 for electrically connecting with the switch assembly, and the switch assembly includes: a mounting frame 33 fixedly mounted on the inner wall of one side of the handle 5, a fixed block 34 fixedly mounted in the mounting frame 33; a slide rod 35 slidably mounted on the fixed block 34, a spring 38 is slidably sleeved on the slide rod 35; a conductive block 36 fixedly mounted at one end of the slide rod 35, two second conductive contacts 37 are provided on one side of the conductive block 36, and the two second conductive contacts 37 are respectively adapted to the two conductive plates 32; a button 39 fixedly mounted on one end of the slide rod 35 away from the conductive block 36, the button 39 extends to the outside of the handle 5, and is sealed and slidably connected to the handle 5.

[0035] In this embodiment, a conductive plate 32 is installed at the bottom of the circuit board 26 for electrical connection. A mounting frame 33 is installed on the inner wall of the handle 5, and a fixing block 34 is fixed inside. A slide bar 35 is slidably installed on the fixing block 34 and is covered with a spring 38. A conductive block 36 is installed at one end of the slide bar 35, and a second conductive contact 37 is provided, which is adapted to the conductive plate 32. A button 39 is installed at the other end of the slide bar 35, which extends to the outside of the handle 5, and is sealed and slidably connected.

[0036] ‌Operation principle‌: Press the button 39, the slide bar 35 slides, the second conductive contact 37 of the conductive block 36 contacts the conductive plate 32, the circuit is turned on, and the dual-axis motor 7 starts. Release the button 39, the spring 38 resets the slide bar 35, and the circuit is turned off. This design realizes the control of the start and stop of the dual-axis motor 7 by the button 39, which is easy to operate, ensures the stability and safety of the circuit, and improves the user experience and reliability of the device.

[0037] In a further preferred embodiment of the present invention, a locking assembly is provided on the extension arm 2, which is used to lock the mounting seat 11 to fix it after the mounting seat 11 is rotated to adjust the angle, and the locking assembly includes: a mounting circular plate 40 arranged outside the extension arm 2; a plurality of connecting rods 41 fixedly mounted on one side of the mounting circular plate 40, the plurality of connecting rods 41 extend into the extension arm 2 and are sealed and slidably connected to the extension arm 2; an annular pressure plate 42 movably sleeved on the central axis 12 and fixedly mounted on the same end of the plurality of connecting rods 41, the annular pressure plate 42 is tightly against the mounting seat 11, and is used to lock and fix the mounting seat 11; a bolt rod 43 that passes through the mounting hole on the mounting circular plate 40 and is threadedly connected to the threaded groove starting from one side of the extension arm 2, and one end of the bolt rod 43 is provided with an integrally formed hand-tightened knob 44, which is used to press the mounting circular plate 40 tightly.

[0038] In this embodiment, in the structure of the locking assembly, the mounting circular plate 40 is arranged outside the extension arm 2, and a connecting rod 41 is fixed on one side, extending into the extension arm 2 and sealingly slidingly connected. The annular pressure plate 42 is movably sleeved on the central axis 12, fixed to one end of the connecting rod 41, and tightly against the mounting seat 11. The bolt rod 43 passes through the mounting circular plate 40, is threadedly connected to the extension arm 2, and a hand-tightening knob 44 is provided at one end. After adjusting the angle of the mounting seat 11, tighten the hand-tightening knob 44 to drive the bolt rod 43 to press the mounting circular plate 40, and then push the annular pressure plate 42 to press against the mounting seat 11 through the connecting rod 41 to achieve locking and fixing. This design ensures the stability of the mounting seat 11 after the angle is adjusted, prevents loosening, improves the stability and safety of the equipment, and is easy to operate and improves the user experience.

[0039] In a further preferred embodiment of the present invention, snap-on assemblies are provided on both sides of the battery holder 6 for fixing the battery holder 6 to the handle 5, and the snap-on assemblies include: a connecting block 29 provided on one side of the battery holder 6, the connecting block 29 being integrally formed with the battery holder 6; an elastic pressing piece 30 integrally formed with the connecting block 29, a clamping block 31 being provided on one side of the elastic pressing piece 30, and clamping slots are provided on both sides of the handle 5, the clamping block 31 being clamped into the clamping slot on one side of the handle 5.

[0040] In this embodiment, the battery holder buckle assembly includes a connection block 29, an elastic pressing sheet 30, and a clamping block 31. The connection block 29 is integrally formed with the battery holder 6, the elastic pressing sheet 30 is integrally formed with the connection block 29, and the clamping block 31 is arranged on the elastic pressing sheet 30. Through the elastic action of the elastic pressing sheet 30, the clamping block 31 is clamped into the clamping slot of the grip 5, thereby tightly fixing the battery holder 6 and the grip 5. This design provides a stable and easy-to-operate battery holder fixing method, ensures a firm connection between the battery holder 6 and the grip 5, and improves the overall stability and reliability of the device. .

[0041] In another embodiment of the present invention, a connecting hole 45 is provided at one end of the saw blade 4, and suction holes 46 are provided between the saw teeth of the saw blade 4, the suction hole 46 is connected to the connecting hole 45, a mounting groove is provided at one end of the mounting seat 11, one end of the saw blade 4 is inserted into the mounting groove and sealed with the inner wall of the mounting groove, the connecting hole 45 is connected to the mounting groove, a connecting hole connected to the mounting groove is provided on one side of the mounting seat 11, a first connecting tube 47 is installed on the connecting hole, the other end of the first connecting tube 47 is sealed and a second connecting tube 48 is rotatably sleeved, the center of rotation of the first connecting tube 47 on the second connecting tube 48 is coaxial with the rotation of the connecting tube 3 and the central axis 12, and a cleaning component is provided in the cylinder body 1, which is used to absorb and clean the debris generated when the saw blade 4 saws bones, so as to reduce the influence of the debris on the operation.

[0042] In this embodiment, the debris cleaning structure is designed as follows: a connecting hole 45 is provided at one end of the saw blade 4, and a suction hole 46 is provided between the saw teeth and connected to the connecting hole 45. A mounting groove is provided at one end of the mounting seat 11, and one end of the saw blade 4 is inserted and sealed. The connecting hole 45 is connected to the mounting groove, and a connecting hole is provided on the side of the mounting seat 11, which is connected to the first connecting tube 47. The other end of the first connecting tube 47 is sealed and rotated around the second connecting tube 48, and the center of rotation is concentric with the connection tube 3 and the central axis 12. A cleaning component is provided in the cylinder body 1. The cleaning component absorbs and cleans the debris generated by the saw blade 4 when sawing bones through the second connecting tube 48, the first connecting tube 47, the connecting hole, the mounting groove, the connecting hole 45, and the suction hole 46. This design effectively reduces the impact of the debris generated during the bone sawing process on the operation, improves the cleanliness and safety of the operation, and at the same time ensures the stable connection of the saw blade 4 during the rotation process and the smooth discharge of the debris.

[0043] In another embodiment of the present invention, the cleaning assembly includes: a partition 49 fixedly mounted in the extension arm 2 and sealed with the inner wall of the extension arm 2; a third rotating shaft 60 rotatably mounted on the partition 49, the third rotating shaft 60 being sealed with the partition 49; two second spur gears 57 fixedly sleeved on the other output shaft of the dual-axis motor 7 and one end of the third rotating shaft 60, the two second spur gears 57 being meshed with each other; a volute 50 fixedly mounted in the cylinder 1, the volute 50 being sealed with the inner wall of the cylinder 1, an inlet chamber 53 being formed between the volute 50 and the partition 49, a mounting port being provided on one side of the cylinder 1, the other end of the second connecting pipe 48 being sealingly connected with the mounting port, and the mounting port being communicated with the inlet chamber 53; a wind wheel 51 disposed in the volute 50 and fixedly sleeved on one end of the third rotating shaft 60; an exhaust port 52 disposed on the volute 50, for exhausting debris extracted by the negative pressure of the stroke when the wind wheel 51 rotates.

[0044] In this embodiment, the cleaning assembly is innovatively designed. The assembly is mainly composed of several key components: First, the partition 49 is fixedly installed in the extension arm 2 and forms a sealing structure with the inner wall of the extension arm 2. This design ensures the airtightness of the airflow and creates favorable conditions for subsequent debris extraction. Then, the third rotating shaft 60 is rotatably installed on the partition 49 and also maintains a sealed state with the partition 49. The design of this rotating shaft provides stable support for the rotation of the wind wheel 51. In order to drive the rotation of the third rotating shaft 60, the present invention cleverly utilizes another output shaft of the dual-axis motor 7. By fixing two meshing second spur gears 57 on one end of this output shaft and the third rotating shaft 60, the power transmission is realized. This design not only simplifies the structure, but also improves the transmission efficiency. The volute 50, as another important component, is fixedly installed in the cylinder 1 and forms a seal with the inner wall of the cylinder 1. The volute 50 and the partition 49 together form an entry chamber 53, and this design enables the debris to be effectively guided into the volute 50. In order to connect the second connecting pipe 48 with the entrance chamber 53, the present invention opens a mounting port on one side of the barrel 1, and seals the other end of the second connecting pipe 48 with the mounting port. This design ensures the smooth flow of airflow, so that the debris can be smoothly extracted. The wind wheel 51, as the core component of the cleaning assembly, is arranged in the volute 50 and is fixedly sleeved on one end of the third rotating shaft 60. When the third rotating shaft 60 rotates, the wind wheel 51 will also rotate accordingly, thereby generating negative pressure, and extracting the debris into the volute 50. Finally, a discharge port 52 is also provided on the volute 50 for discharging the debris extracted by the negative pressure formed when the wind wheel 51 rotates. This design ensures that the debris can be effectively discharged from the system, keeping the operating environment clean.

[0045] In another embodiment of the present invention, the rear end of the barrel 1 is open and a dust box 54 is threadedly installed. A filter bag 55 is provided in the dust box 54 for filtering debris. The rear end of the dust box 54 is open and a rear cover 56 is fixedly installed thereon. An exhaust hole is provided on the rear cover 56 for exhausting the extracted air.

[0046] In this embodiment, the tail end of the barrel 1 is cleverly designed, with an open structure and a dust box 54 threadedly installed. The dust box 54 is equipped with a filter bag 55 inside. This design can effectively filter and collect the debris generated during the operation to prevent it from spreading into the air. At the same time, a rear cover 56 is fixedly installed at the tail end of the dust box 54, and an exhaust hole is specially provided on the rear cover 56 to discharge the air introduced during the debris extraction process to ensure the air pressure balance inside the system. This design not only improves the debris collection efficiency of the surgical saw, but also ensures the stability and safety of the system during use through the design of the exhaust hole. The use of the filter bag 55 further improves the fineness of the debris filtration and effectively prevents the debris from polluting the surgical environment. Overall, this design reflects the in-depth consideration of surgical cleanliness and patient safety, and provides more reliable and efficient equipment support for medical surgery.

[0047] In another embodiment of the present invention, an injection tube 58 connected to the entrance cavity 53 is fixedly installed on the top of the barrel 1, which is used to inject cleaning and disinfecting water into the injection tube 58 through an external pump after the operation is completed and the debris in the dust box 54 is cleaned, so as to clean and disinfect the internal channel, and a sealing cover 59 is threadedly installed on the injection tube 58.

[0048] In this embodiment, an injection tube 58 is added to the top of the barrel 1, and the injection tube 58 is connected to the entry cavity 53. The design purpose is to facilitate the injection of cleaning and disinfecting water into the system through an external pump after the operation is completed. This function is particularly important because it can ensure that the entire internal channel is effectively cleaned and disinfected after the debris in the dust box 54 is thoroughly cleaned. In order to maintain the sealing of the system when not in use, a threaded sealing cap 59 is also provided on the injection tube 58. This design not only improves the practicality of the surgical saw, but also greatly enhances the hygiene and safety standards during the operation.

[0049] It is worth noting that the circuits, electronic components and modules involved in the present invention are all prior art, and those skilled in the art can fully implement them. Needless to say, the content protected by the present invention does not involve improvements to software and methods. In this solution, the electrical connection method between the circuit board and various electrical devices and conductive elements is an existing mature technology and a well-known technology to those skilled in the art, and will not be described in detail here.

[0050] To sum up, compared with the related art, firstly, the present invention has a unique saw blade angle adjustment design, so that doctors can easily achieve bone cutting at different angles without changing bone saws of different models or functions. This greatly improves the flexibility and efficiency of the operation, while also reducing the doctor's operating difficulty, making the surgical process smoother and more precise.

[0051] Secondly, the orthopedic saw of the present invention integrates a set of efficient debris cleaning mechanisms. This design can absorb and collect the generated debris in real time during the bone sawing process, effectively avoiding the interference of debris on the surgical vision and reducing the possible safety risks. This innovation not only improves the cleanliness of the operation, but also ensures the smooth progress of the operation, providing doctors with a clearer and safer surgical environment.

[0052] Finally, the present invention fully considers the needs of cleaning and disinfection in the design of the orthopedic saw. Through the design of the injection tube, the doctor can easily inject cleaning and disinfection water to thoroughly clean and disinfect the internal channel. This design not only ensures the hygiene and safety of surgical instruments, but also extends the service life of the orthopedic saw and reduces maintenance costs.

Claims

1. An orthopedic saw that is easy to clean for surgery, characterized in that: include: Cylinder (1); An extension arm (2) threadedly mounted on the inner wall of the front end of the cylinder (1), wherein the extension arm (2) is a hollow structure; A connecting cylinder (3) is rotated in the extension arm (2), wherein the connecting cylinder (3) is matched with the extension arm (2), and a mounting seat (11) is mounted in the connecting cylinder (3) in a reciprocating sliding manner in the longitudinal direction; A saw blade (4) used for performing bone sawing operations during surgery, the saw blade (4) being fixedly mounted on the mounting seat (11) by means of screws; A handle (5) is arranged at the bottom of the barrel (1), the handle (5) and the barrel (1) being integrally formed, the handle (5) being provided with a battery slot extending vertically therethrough, a battery holder (6) being installed in the battery slot, and a lithium battery being built into the battery holder (6); The rotation of the connecting tube (3) is used to adjust the angle of the saw blade (4), and the longitudinal reciprocating sliding of the mounting seat (11) is used to drive the saw blade to slide reciprocally to perform bone sawing operations; A driving mechanism is arranged inside the cylinder (1) and is used to drive the mounting seat (11) to move back and forth, thereby driving the saw blade (4) to move back and forth.

2. The orthopedic saw for surgery that is easy to clean as claimed in claim 1, characterized in that: The driving mechanism comprises: A double-shaft motor (7) disposed in the barrel (1) and used to provide driving force for the saw blade (4) to perform bone sawing operations; A first rotating shaft (8) and a second rotating shaft (10) are both rotatably mounted in the extension arm (2), one end of the first rotating shaft (8) is connected to an end of the second rotating shaft (10) that is close to each other, and the first rotating shaft (8) and the second rotating shaft (10) are coaxially arranged; Two first spur gears (9) are respectively fixedly mounted on one end of the first rotating shaft (8) away from the second rotating shaft (10) and on an output shaft of the dual-shaft motor (7), and the two first spur gears (9) are meshed with each other; A central axis (12) rotatably mounted on an inner wall of one side of the extension arm (2), wherein the central axis (12) and the second rotation axis (10) are both perpendicular; Two bevel gears (13) are respectively fixedly mounted on one end of the second rotating shaft (10) away from the first rotating shaft (8) and on the middle shaft (12), and the two second bevel gears (13) are meshed with each other; A disc (14) fixedly mounted on one end of the central axis (12), wherein an eccentric shaft (15) is fixedly mounted on a side of the disc (14) away from the central axis (12); A hinged rod (16) is rotatably sleeved on the eccentric shaft (15), wherein the other end of the hinged rod (16) is hingedly connected to a hinged seat (17) fixedly mounted on one end of the mounting seat (11); The disc (14), the eccentric shaft (15) and the hinged rod (16) are all located inside the connecting tube (3).

3. The orthopedic saw for surgery that is easy to clean as claimed in claim 1, characterized in that: The top and bottom of the connecting tube (3) are both fixedly mounted with mounting plates (18) by means of screws, and sliding blocks (19) are both fixedly mounted on the two mounting plates (18). The top and bottom of the mounting seat (11) are both provided with sliding grooves, and the two sliding blocks (19) extend into the two sliding grooves respectively and are slidably connected to the inner walls of the sliding grooves.

4. The orthopedic saw for surgery that is easy to clean as claimed in claim 2, characterized in that: A spline groove is formed at one end of the first rotating shaft (8), and a spline shaft (20) is provided at one end of the second rotating shaft (10). The spline shaft (20) extends to the spline groove and meshes with the spline groove.

5. The orthopedic saw for surgery that is easy to clean as claimed in claim 2, characterized in that: A support seat (22) is fixedly installed in the cylinder (1), and a mounting opening is provided on the top of the cylinder (1) and a pressure cover (21) is fixedly installed thereon by means of screws. A plurality of positioning grooves are provided at the bottom of the pressure cover (21) and the top of the support seat (22), and rubber pads are provided in the positioning grooves. A plurality of positioning columns (23) are installed at the top and bottom of the dual-axis motor (7), and the plurality of positioning columns (23) are respectively inserted into the plurality of positioning grooves.

6. The orthopedic saw for surgery that is easy to clean as claimed in claim 5, characterized in that: An insulating seat is provided at the bottom of the dual-axis motor (7), and two conductive cylinders (24) are installed on the insulating seat. Two power lines inside the dual-axis motor (7) are electrically connected to the two conductive cylinders (24) respectively. Two conductive rods (25) are installed on the top of the support seat (22), and the two conductive rods (25) are respectively inserted into the two conductive cylinders (24). A circuit board (26) is installed at the bottom of the cylinder body (1), and the circuit board (26) is located in the handle (5). Two first conductive contacts (27) are installed at the bottom of the circuit board (26). Two conductive sheets (28) electrically connected to the two poles of the built-in lithium battery are installed on the top of the battery seat (6), and the two first conductive contacts (27) are respectively in contact with the two conductive sheets (28) and electrically conductive. A switch component for controlling the start and stop of the dual-axis motor (7) is also installed on the handle (5).

7. The orthopedic saw for surgery that is easy to clean as claimed in claim 6, characterized in that: Two conductive plates (32) are installed at the bottom of the circuit board (26) for electrically connecting to a switch assembly, wherein the switch assembly comprises: A mounting frame (33) fixedly mounted on an inner wall of one side of the handle (5), wherein a fixing block (34) is fixedly mounted in the mounting frame (33); A slide bar (35) slidably mounted on the fixed block (34), wherein a spring (38) is provided on a sliding sleeve of the slide bar (35); A conductive block (36) fixedly mounted on one end of the slide bar (35), two second conductive contacts (37) being provided on one side of the conductive block (36), the two second conductive contacts (37) being respectively matched with the two conductive plates (32); A button (39) is fixedly mounted on an end of the slide bar (35) away from the conductive block (36); the button (39) extends outside the handle (5) and is sealed and slidably connected to the handle (5).

8. The orthopedic saw for surgery that is easy to clean as claimed in claim 1, characterized in that: The extension arm (2) is provided with a locking assembly for locking the mounting seat (11) to fix it after the mounting seat (11) is rotated to adjust the angle, and the locking assembly comprises: A mounting circular plate (40) disposed outside the extension arm (2); a plurality of connecting rods (41) fixedly mounted on one side of the mounting circular plate (40), the plurality of connecting rods (41) extending into the extension arm (2) and being sealed and slidably connected to the extension arm (2); an annular pressing plate (42) movably sleeved on the central shaft (12) and fixedly mounted on the same end of the plurality of connecting rods (41), the annular pressing plate (42) being tightly against the mounting seat (11) and used for locking and fixing the mounting seat (11); A bolt rod (43) passes through the mounting hole on the mounting circular plate (40) and is threadedly connected to the thread groove starting from one side of the extension arm (2); one end of the bolt rod (43) is provided with an integrally formed hand-tightening knob (44) for tightly pressing the mounting circular plate (40).

9. The orthopedic saw for surgery that is easy to clean as claimed in claim 1, characterized in that: Buckle assemblies are provided on both sides of the battery seat (6) for fixing the battery seat (6) to the handle (5), and the buckle assemblies include: A connecting block (29) is arranged on one side of the battery seat (6), the connecting block (29) and the battery seat (6) being integrally formed; An elastic pressing sheet (30) is integrally formed with the connecting block (29), a clamping block (31) is provided on one side of the elastic pressing sheet (30), clamping grooves are provided on both sides of the handle (5), and the clamping block (31) is clamped into the clamping groove on one side of the handle (5).

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