A new osteotomy saw

Abstract

The utility model relates to medical equipment technical field, concretely relates to a novel osteotomy saw, including handle, the outer wall right side of handle integrative intercommunication has the protection pipe, the side that the protection pipe is away from handle is provided with cutting saw piece, the inside of handle and protection pipe is provided with the mounting part that fixes and drives cutting saw piece, the one end that protection pipe is away from handle is provided with cutting saw piece movement direction carries out the limiting limiting part, in the utility model, when personnel need to replace cutting saw piece, personnel can first take down the extension pipe, then can through linear motor cutting saw piece fixing seat from protection pipe stretches out, then can cutting saw piece fixing seat's stretch out end is broken open to both sides and can cutting saw piece is taken off to replace, thereby can avoid personnel when replacing cutting saw piece needs to dismantle the device whole, and further can simplify personnel replacement cutting saw piece's step.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a novel osteotomy saw. Background Technology

[0002] The fish-belly osteotomy saw is a surgical tool with a specific shape, primarily used for bone cutting in orthopedic surgery. The "fish-belly" in its name describes the unique shape of its blade; compared to a standard osteotomy saw, it has a more pronounced curve and a wider section, a design that makes it more effective in certain surgical procedures.

[0003] Existing fish-belly-shaped osteotomy saws primarily use a built-in linear motor to drive the saw blade in rapid back-and-forth movement to cut and remove bones from the patient. However, the mounting end of the existing osteotomy saw blade is usually fixed to the internal mounting base of the device. This means that when the osteotomy saw blade needs to be replaced, the entire device must be disassembled to remove and replace it. This can easily affect the efficiency of osteotomy saw blade replacement, and errors during assembly can also easily cause the device to malfunction. Therefore, existing osteotomy saw devices have shortcomings in practical use.

[0004] In conclusion, it is necessary to invent a new type of osteotomy saw. Utility Model Content

[0005] Therefore, this utility model provides a novel osteotomy saw to solve the problem that the mounting end of the existing osteotomy saw blade is mostly fixed to the internal mounting base of the device. This means that when the osteotomy saw blade needs to be replaced, the entire device must be disassembled to remove and replace the osteotomy saw blade. This can easily affect the replacement efficiency of the osteotomy saw blade, and if the personnel make mistakes during assembly, the device may not be able to be used normally.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel osteotomy saw, including a handle, a protective tube integrally connected to the right side of the outer wall of the handle, a cutting saw blade disposed on the side of the protective tube away from the handle, an installation component for fixing and driving the cutting saw blade disposed inside the handle and the protective tube, and a limiting component for limiting the moving direction of the cutting saw blade disposed at the end of the protective tube away from the handle.

[0007] Preferably, the outer wall of the handle is fixed with a rubber anti-slip layer, a battery is installed on the left side of the inner wall of the handle, and a control button is installed on the left side of the outer wall of the handle.

[0008] Preferably, a partition is fixed to the inner wall of the handle and to the right of the battery. The mounting component includes a linear motor, which is fixed inside the handle and located on the side of the partition away from the battery. The linear motor is electrically connected to the battery via a power transmission cable.

[0009] Preferably, the inner wall of the protective tube is provided with a saw blade fixing seat, and the end of the saw blade fixing seat away from the linear motor is provided with an installation slot. The left end of the cutting saw blade passes through the inner wall of the protective tube and is connected to the installation slot.

[0010] Preferably, the inner wall of each mounting slot is fixed with a mounting pin, and the left end of the outer wall of the cutting saw blade is provided with a mounting slot at a position corresponding to the mounting pin, and the mounting slot is connected to the outer wall of the mounting pin.

[0011] Preferably, a movable plate is fixed to one end of the saw blade fixing seat near the linear motor, the output shaft of the linear motor is fixedly connected to the outer wall side of the movable plate, and guide rods are fixed to the upper and lower ends of the inner wall of the protective tube at positions corresponding to the movable plate. The upper and lower ends of the outer wall of the movable plate are slidably connected to the outer wall of the movable plate by opening sliding grooves.

[0012] Preferably, the limiting component includes an extension tube, which is a two-section structure spliced ​​together. The outer wall of the two extension tubes on opposite sides is provided with a slot for the saw blade fixing seat to pass through. A connecting block is fixed at the end of the extension tube near the protective tube, and the end of the connecting block away from the extension tube abuts against the inner wall of the protective tube.

[0013] Preferably, the extension tube is fixed with a positioning pin and a positioning hole on the opposite side of the slot and the upper and lower sides of the slot, respectively. The extension tubes are connected to each other by the positioning pin and the positioning hole. The outer wall of the extension tube and the protective tube are both provided with external threads on the opposite side. The outer wall of the external thread is connected with an external thread ring.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, when personnel need to replace the cutting saw blade, they can first remove the extension tube, and then extend the saw blade fixing seat from the protective tube through the linear motor. The extended end of the saw blade fixing seat can then be pried open to both sides to remove the cutting saw blade for replacement. This avoids the need for personnel to disassemble the entire device when replacing the cutting saw blade, thus simplifying the steps for personnel to replace the cutting saw blade and making it more convenient for personnel to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view.

[0017] Figure 2This is a cross-sectional view of the present invention from the front view.

[0018] Figure 3 This is a three-dimensional structural diagram of the saw blade fixing seat in this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the extension tube after it is closed in this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the extension tube after it is separated in this utility model.

[0021] In the diagram: 100, handle; 110, rubber anti-slip layer; 120, control button; 130, battery; 140, linear motor; 200, protective tube; 210, saw blade holder; 211, mounting pin; 220, moving plate; 221, guide rod; 300, extension tube; 310, external thread; 320, positioning pin; 330, connecting block; 400, external thread ring; 500, cutting saw blade. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] See attached document Figures 1-5 The present invention provides a novel osteotomy saw, including a handle 100, the outer wall of which is fixed with a rubber anti-slip layer 110, a battery 130 installed on the left side of the inner wall of the handle 100, a control button 120 installed on the left side of the outer wall of the handle 100, and a partition fixed on the inner wall of the handle 100 and to the right of the battery 130. The battery 130 is provided to supply power for the operation of the device, and the control button 120 is provided to regulate the power supply of the linear motor 140.

[0024] A protective tube 200 is integrally connected to the right side of the outer wall of the handle 100. A cutting saw blade 500 is disposed on the side of the protective tube 200 away from the handle 100. The bottom right end of the cutting saw blade 500 has saw teeth. A mounting component for fixing and driving the cutting saw blade 500 is disposed inside the handle 100 and the protective tube 200. The mounting component includes a linear motor 140, which is fixed inside the handle 100 and located on the side of the partition away from the battery 130. Communication is established between the linear motor 140 and the battery 130. Electrically connected via power transmission cable, the linear motor 140, after being powered on, can quickly control its output shaft to reciprocate. A saw blade fixing seat 210 is provided on the inner wall of the protective tube 200. An installation slot is provided at the end of the saw blade fixing seat 210 away from the linear motor 140. The left ends of the cutting saw blades 500 all pass through the inner wall of the protective tube 200 and connect to the installation slots. Installation pins 211 are fixed to the inner walls of the installation slots. Installation slots are provided on the left end of the outer wall of the cutting saw blades 500 at positions corresponding to the installation pins 211. The saw blade fixing seat 210 is connected to the outer wall of the mounting slot and the mounting pin 211. Specifically, the end of the saw blade fixing seat 210 with the mounting slot can be a plastic structure, meaning its open end can deform to a certain extent. When the saw blade fixing seat 210 extends out of the protective tube 200, the operator can pry the mounting slot open to both sides, allowing the operator to remove the cutting saw blade 500 from the mounting slot for replacement. The mounting pin 211 and the mounting slot are designed to ensure the stability of the connection between the cutting saw blade 500 and the mounting slot. A movable plate 220 is fixed to one end of the fixed base 210 near the linear motor 140. The output shaft of the linear motor 140 is fixedly connected to the outer wall side of the movable plate 220. Guide rods 221 are fixed at the upper and lower ends of the inner wall of the protective tube 200 and at positions corresponding to the movable plate 220. The upper and lower ends of the outer walls of the movable plate 220 are slidably connected to the outer wall of the movable plate 220 by opening sliding grooves. The guide rods 221 are provided to limit the direction of movement of the saw blade fixed base 210 and the movable plate 220 without affecting the sliding of the saw blade fixed base 210 and the movable plate 220.

[0025] The protective tube 200, away from the handle 100, is equipped with a limiting component to restrict the movement direction of the cutting saw blade 500. This limiting component ensures that when the device rapidly moves the saw blade holder 210, the end with the mounting slot will not separate, preventing the cutting saw blade 500 from detaching. The limiting component includes an extension tube 300, which is a two-section structure. The outer walls of the two sections of the extension tube 300 have slots for the saw blade holder 210 to pass through. These slots facilitate the passage of the saw blade holder 210 and also ensure that the saw blade holder 210 remains clamped to the cutting saw blade 500 during passage, preventing the cutting saw blade 500 from detaching from the saw blade holder 210. The end of the extension tube 300 closest to the protective tube 200 is fixed with a connecting... The connecting block 330 has one end away from the extension tube 300 and abuts against the inner wall of the protective tube 200. The extension tube 300 has a positioning pin 320 and a positioning hole respectively fixed on the opposite side and the upper and lower sides of the slot. The connecting block 330 is provided to facilitate the installation of the spliced ​​extension tube 300 and the protective tube 200. The extension tubes 300 are connected to each other through the positioning pin 320 and the positioning hole. The positioning pin 320 and the positioning hole are provided to facilitate the disassembly and fixation of the extension tube 300. The outer walls of the extension tube 300 and the protective tube 200 are both provided with external threads 310 on opposite sides. The outer wall of the external thread 310 is threaded with an external thread ring 400. The external threads 310 and the external thread ring 400 are provided to facilitate the fixation of the protective tube 200 and the extension tube 300 together.

[0026] The usage process of this utility model is as follows: First, when installing the cutting saw blade 500, the operator can first turn on the power so that the linear motor 140 extends the saw blade fixing seat 210 from the open end of the protective tube 200. Then, the operator can pry the mounting slot open slightly outward, and then insert the mounting end of the cutting saw blade 500 into the mounting slot, so that the mounting pin 211 is engaged with the mounting slot opened at the mounting end of the cutting saw blade 500. After completion, the operator can control the linear motor 140 to retract the saw blade fixing seat 210 into the protective tube 200. Then, the operator can take out the extension tube 300 and align it with the outer wall of the cutting saw blade 500 so that the cutting saw blade 500 is in the slot. Then, the operator can insert the end of the aligned extension tube 300 with the connecting insert 330 into the inner wall of the protective tube 200. The linear motor 140 can be restarted to allow the saw blade holder 210 to slide back and forth, ensuring that the saw blade holder 210 can be properly inserted into the slot opened in the extension tube 300 and can slide back and forth within the slot. After completion, the external threaded ring 400 can be rotated until the protective tube 200 and the extension tube 300 are connected, so that the external threaded ring 400 can fix the protective tube 200 and the extension tube 300 through the external thread 310. Then, the personnel can control the linear motor 140 to drive the cutting saw blade 500 to move quickly to perform osteotomy on the patient through the control button 120. Specifically, guide grooves can be opened on both sides of the outer wall of the saw blade holder 210, and a limiting guide block can be fixed on the inner wall of the slot opened in the extension tube 300. The limiting guide block and the guide groove can ensure that the extension tube 300 is positioned during fixation, avoiding the personnel from misaligning during installation.

[0027] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A novel osteotomy saw, comprising a handle (100), wherein a protective tube (200) is integrally connected to the right side of the outer wall of the handle (100), and a cutting saw blade (500) is disposed on the side of the protective tube (200) away from the handle (100), characterized in that: The handle (100) and the protective tube (200) are provided with mounting components for fixing and driving the cutting saw blade (500). The end of the protective tube (200) away from the handle (100) is provided with a limiting component for limiting the moving direction of the cutting saw blade (500).

2. The novel osteotomy saw according to claim 1, characterized in that: The outer wall of the handle (100) is fixed with a rubber anti-slip layer (110), a battery (130) is installed on the left side of the inner wall of the handle (100), and a control button (120) is installed on the left side of the outer wall of the handle (100).

3. The novel osteotomy saw according to claim 2, characterized in that: A partition is fixed to the inner wall of the handle (100) and to the right of the battery (130). The mounting component includes a linear motor (140), which is fixed inside the handle (100) and located on the side of the partition away from the battery (130). The linear motor (140) is electrically connected to the battery (130) via a power transmission cable.

4. A novel osteotomy saw according to claim 3, characterized in that: The inner wall of the protective tube (200) is provided with a saw blade fixing seat (210). The end of the saw blade fixing seat (210) away from the linear motor (140) is provided with an installation slot. The left end of the cutting saw blade (500) passes through the inner wall of the protective tube (200) and is connected to the installation slot.

5. A novel osteotomy saw according to claim 4, characterized in that: The inner wall of each mounting slot is fixed with a mounting pin (211), and the left end of the outer wall of the cutting saw blade (500) is provided with a mounting slot at the position corresponding to the mounting pin (211). The mounting slot is connected to the outer wall of the mounting pin (211).

6. A novel osteotomy saw according to claim 5, characterized in that: The saw blade fixing seat (210) is fixed with a movable plate (220) at one end near the linear motor (140). The output shaft of the linear motor (140) is fixedly connected to the outer wall side of the movable plate (220). Guide rods (221) are fixed at the upper and lower ends of the inner wall of the protective tube (200) and at positions corresponding to the movable plate (220). The upper and lower ends of the outer walls of the movable plate (220) are slidably connected to the outer wall of the movable plate (220) by opening sliding grooves.

7. A novel osteotomy saw according to claim 4, characterized in that: The limiting component includes an extension tube (300), which is a two-section structure spliced ​​together. The outer wall of the two extension tubes (300) on opposite sides is provided with a slot for the saw blade fixing seat (210) to pass through. A connecting plug (330) is fixed at the end of the extension tube (300) near the protective tube (200). The end of the connecting plug (330) away from the extension tube (300) abuts against the inner wall of the protective tube (200).

8. A novel osteotomy saw according to claim 7, characterized in that: The extension tube (300) is fixed with a positioning pin (320) on one side opposite to the upper and lower sides of the slot and has a positioning hole respectively. The extension tubes (300) are connected to each other through the positioning pin (320) and the positioning hole. The outer walls of the extension tube (300) and the protective tube (200) are both provided with external threads (310) on the opposite side. The outer wall of the external thread (310) is threaded with an external thread ring (400).

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