Orthopedic swing saw

Abstract

This application provides an orthopedic oscillating saw, including an oscillating saw body, a laser level, and a saw blade. The oscillating saw body drives the saw blade in reciprocating motion to perform osteotomy. The laser level is mounted on the oscillating saw body and projects a visible laser reference line in the horizontal direction, providing the operator with an intuitive cutting reference. One end of the saw blade is connected to the drive mechanism of the oscillating saw body via a chuck, and the other end has a toothed structure as the osteotomy working part. Near the toothed end of the saw blade is a first reference part extending along its width direction; this first reference part can be a scribed line, groove, or protrusion. When the horizontal laser reference line projected by the laser level is aligned or parallel to the first reference part, the osteotomy surface of the saw blade is horizontal, thus ensuring the accuracy of the osteotomy operation. The orthopedic oscillating saw of this application achieves precise osteotomy through simple visual alignment, effectively solving the problem of the lack of a reliable reference in traditional oscillating saws.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and more specifically, relates to an orthopedic oscillating saw. Background Technology

[0002] In orthopedic surgery, the oscillating saw is an important cutting tool widely used in bone resection and trimming. However, in actual use, due to the lack of intuitive and reliable reference lines, operators often find it difficult to accurately control the cutting direction and angle, easily leading to deviations from the intended cutting position. Traditional oscillating saws rely primarily on the operator's experience and feel for cutting, lacking effective auxiliary positioning methods, which not only increases the difficulty of the surgery but may also affect surgical precision and safety. Utility Model Content

[0003] The purpose of this application is to provide an orthopedic oscillating saw to solve the technical problems of high operational difficulty and low control precision in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: An orthopedic oscillating saw is provided, comprising: Oscillating saw body; A laser level is mounted on the oscillating saw body, and the laser level is used to emit a horizontal laser reference line. The saw blade has one end mounted on the oscillating saw body and the other end having saw teeth; the saw blade has a first reference portion extending along the width direction of the saw blade; the first reference portion is located on the saw blade near the saw teeth. When the horizontal laser reference line is aligned with or parallel to the first reference part, the osteotomy surface of the saw blade is parallel to the horizontal plane.

[0005] As a further improvement to the above technical solution: Optionally, the laser level can also be used to emit a vertical laser reference line; the saw blade is also provided with a second reference part extending along the length direction of the saw blade; when the vertical laser reference line is aligned or parallel to the second reference part, it is used to calibrate the installation position of the laser level.

[0006] Optionally, there may be multiple second reference portions, each of which is disposed on the saw blade at intervals from one another; the vertical laser reference line may be optionally aligned with or parallel to one of the second reference portions.

[0007] Optionally, at least one of the second reference portions extends along the centerline of the saw blade along its length direction.

[0008] Optionally, the saw blade may also be provided with scale lines arranged sequentially along the length of the saw blade.

[0009] Optionally, the orthopedic oscillating saw also includes a limiting element, which can be installed at a predetermined position on the saw blade to limit the cutting depth of the saw blade.

[0010] Optionally, the limiting component includes a limiting body and a fastener. The limiting body has a slot into which the saw blade can be inserted. The fastener is connected to the limiting body, and one end of the fastener extends into the slot to abut against the saw blade.

[0011] Optionally, there are at least two fasteners, each of which is disposed on both sides of the limiting body.

[0012] Optionally, the saw blade includes a first blade and a second blade that are parallel to each other and not on the same plane. The second blade is mounted on the swing saw body, the saw teeth are provided on the first blade, and the first blade is flush with or parallel to the horizontal laser reference line.

[0013] Optionally, the first reference portion and / or the second reference portion are reference grooves. The beneficial effects of the orthopedic oscillating saw provided in this application are as follows: The orthopedic oscillating saw provided in this application includes an oscillating saw body, a laser level, and a saw blade. The oscillating saw body drives the saw blade to reciprocate to perform osteotomy. The laser level is mounted on the oscillating saw body and projects a visible laser reference line in the horizontal direction, providing the operator with an intuitive cutting reference. One end of the saw blade is connected to the drive mechanism of the oscillating saw body via a chuck, and the other end has a toothed structure as the osteotomy working part. Near the toothed end of the saw blade is a first reference part extending in its width direction. This first reference part can be a scribed line, a groove, or a raised structure. When the horizontal laser reference line projected by the laser level is aligned or parallel to the first reference part, the osteotomy surface of the saw blade is in a horizontal state, thereby ensuring the accuracy of the osteotomy operation.

[0014] The orthopedic oscillating saw of this application can achieve precise bone cutting through simple visual alignment, effectively solving the problem of the lack of reliable reference in traditional oscillating saws. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of the orthopedic oscillating saw provided in this application; Figure 2 A schematic diagram of the main structure of the orthopedic oscillating saw provided in this application; Figure 3 A top view schematic diagram of the orthopedic oscillating saw provided in this application; Figure 4 A three-dimensional structural diagram of the limiting component of the orthopedic oscillating saw provided in this application; Figure 5 A top view structural diagram of the saw blade of the orthopedic oscillating saw provided in this application; Figure 6 This is a side view structural diagram of the saw blade of the orthopedic oscillating saw provided in this application. The following are the labeling elements in the figure: 1. Saw body; 2. Laser level; 21. Horizontal laser reference line; 22. Vertical laser reference line; 3. Saw blade; 31. First reference part; 32. Second reference part; 33. Scale line; 34. Insert; 35. Weight reduction hole; 4. Limiting component; 41. Limiting body; 411. Slot; 42. Fastener. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] like Figures 1 to 3 As shown, this application provides an orthopedic oscillating saw, including an oscillating saw body 1, a laser level 2, and a saw blade 3.

[0022] Specifically, the oscillating saw body 1 includes components such as a battery, motor, button, and chuck, which drive the saw blade 3 to reciprocate to perform osteotomy. Since the oscillating saw body 1 is prior art, it will not be described in detail. The laser level 2 specifically adopts an existing miniature laser level, which can be mounted on the oscillating saw body 1 and projects a visible laser reference line 21 in the horizontal direction, providing the operator with an intuitive cutting reference. One end of the saw blade 3 is connected to the drive mechanism of the oscillating saw body 1 via the chuck, and the other end has a saw tooth structure as the osteotomy working part. Near the saw tooth end of the saw blade 3 is a first reference part 31 extending in its width direction. This first reference part 31 can be a scribed line, groove, or protrusion. When the horizontal laser reference line 21 projected by the laser level 2 is aligned with or parallel to the first reference part 31, the osteotomy surface of the saw blade 3 is in a horizontal state, thereby ensuring the accuracy of the osteotomy operation.

[0023] The orthopedic oscillating saw of this application can achieve precise bone cutting through simple visual alignment, effectively solving the problem of the lack of reliable reference in traditional oscillating saws.

[0024] like Figures 1 to 3 As shown in a specific embodiment of this application, the laser level 2 has a dual-axis projection function. In addition to the horizontal laser reference line 21, it can also emit a vertical laser reference line 22 perpendicular to the horizontal plane. Correspondingly, the saw blade 3 has a second reference part 32 added in the length direction, which forms an orthogonal reference system with the first reference part 31. The alignment relationship between the vertical laser reference line 22 and the second reference part 32 can be used to calibrate the installation position of the laser level 2. Specifically, when there is a deviation between the vertical laser reference line 22 and the second reference part 32, the installation angle or position of the laser level 2 can be adjusted to make the two laser reference lines 21 and 22 completely aligned with the first reference part 31 and the second reference part 32, respectively. This dual calibration mechanism not only achieves precise positioning of the horizontal osteotomy surface, but also ensures the installation accuracy of the laser level 2 through mutual verification of the orthogonal references, thereby improving the overall reliability of the osteotomy operation.

[0025] like Figure 3 and Figure 5As shown in a specific embodiment of this application, the saw blade 3 is provided with a plurality of spaced second reference portions 32 along its width direction, and these second reference portions 32 are arranged at a preset interval to form a reference array. When performing complex osteotomy operations, especially when dealing with bone corners or special anatomical locations, the operator can select a suitable second reference portion 32 as a reference reference according to actual needs. By adjusting the projection angle or position of the laser level 2, the vertical laser reference line 22 is aligned or parallel to the selected second reference portion 32. This multi-reference line structure can improve the adaptability of the equipment to different osteotomy angles, allowing the operator to flexibly select the optimal reference reference according to specific surgical needs, thereby ensuring the accuracy of osteotomy under complex anatomical structures.

[0026] like Figure 3 and Figure 5 As shown, in one specific embodiment of this application, at least one of the second reference portions 32 coincides with the center line of the saw blade 3 along its length. This central reference line allows the operator to quickly locate the bone during routine osteotomy operations, obtaining an accurate reference without additional adjustments. The remaining second reference portions 32 are symmetrically distributed around this central reference line or arranged at preset intervals, maintaining the uniformity of the reference system while providing multiple optional reference points for osteotomy operations at special angles. This also accommodates both routine use and positioning needs in special situations. The operator can select the most suitable second reference portion 32 as a reference based on the actual surgical conditions, ensuring accurate osteotomy positioning in different surgical scenarios.

[0027] like Figure 3 and Figure 5 As shown in a specific embodiment of this application, the saw blade 3 is provided with scale lines 33 along its length direction, and these scale lines 33 are continuously distributed on the surface of the saw blade 3 at equal intervals. The numerical markings of the scale lines 33 are arranged in ascending order from the working end of the saw blade 3 to the connecting end, forming an intuitive depth measurement system. When the saw blade 3 is performing osteotomy, the operator can directly read the current cutting depth by observing the values ​​of the scale lines 33 exposed outside the bone tissue. This scale system is used in conjunction with the first reference part 31 and the second reference part 32 to ensure accurate positioning of the osteotomy plane while monitoring the osteotomy depth, providing dual protection for the surgical operation.

[0028] like Figure 5As shown, in a specific embodiment of this application, the end of the saw blade 3 is provided with a socket 34. The socket 34 adopts a standard interface design and can form a quick and reliable connection structure with the chuck on the oscillating saw body 1, ensuring the stability of power transmission. The saw blade 3 also has several weight-reducing holes 35. These weight-reducing holes 35 effectively reduce the overall mass of the saw blade 3 while ensuring the overall structural strength and rigidity of the saw blade 3, reducing the inertial torque of the saw blade 3 during high-speed oscillation. This reduces the motor load and improves the sensitivity and accuracy of operation control.

[0029] like Figures 1 to 3 As shown, in one specific embodiment of this application, the orthopedic oscillating saw is equipped with a limiting member 4, which is installed at a predetermined position on the saw blade 3 via an adjustable fixing mechanism. When the saw blade 3 performs osteotomy, the limiting member 4 contacts the bone surface to form a mechanical stop, thereby precisely controlling the cutting depth of the saw blade 3 and avoiding excessive or shallow cutting. The limiting member 4 works in conjunction with the scale line 33, achieving precise control of the osteotomy depth through both mechanical limiting and visual scale protection.

[0030] like Figure 4 As shown, in a specific embodiment of this application, the limiting member 4 includes a limiting body 41 and a fastener 42. The limiting body 41 specifically adopts a slider structure, with a slot 411 inside that matches the cross-sectional shape of the saw blade 3, allowing the saw blade 3 to slide smoothly along the slot 411. The fastener 42 is fixed to the limiting body 41 by a threaded connection, with its end extending into the slot 411. When the limiting member 4 moves to a predetermined position on the saw blade 3, tightening the fastener 42 allows the end to form a stable contact with the surface of the saw blade 3, thereby achieving precise positioning and reliable fixation of the limiting member 4 on the saw blade 3.

[0031] In one specific embodiment of this application, two fasteners 42 are symmetrically arranged on both sides of the limiting body 41. This double fastener structure ensures a stable connection between the limiting member 4 and the saw blade 3 by applying force evenly. This symmetrically distributed fastening mechanism can improve the positioning stability of the limiting member 4 on the saw blade 3, and maintain a reliable fixing effect even under high-speed swinging conditions.

[0032] like Figure 6As shown in a specific embodiment of this application, the projection of the saw blade 3 along its width direction is Z-shaped, comprising a first blade and a second blade that are parallel to each other but not on the same plane. The second blade is fixedly connected to the clamp of the oscillating saw body 1 through a socket 34, forming the main structure for power transmission. The first blade, as the working part, has a serrated edge for performing the actual osteotomy operation. By staggering the first and second blades, the working plane of the first blade is kept flush or parallel to the horizontal laser reference line 21 emitted by the laser level 2, ensuring a reliable connection between the saw blade 3 and the oscillating saw body 1, and ensuring that the working part accurately corresponds to the preset osteotomy plane, achieving high-precision osteotomy operation.

[0033] In one specific embodiment of this application, at least one of the first reference part 31 and the second reference part 32 is implemented using a reference groove structure, which is formed along the width or length direction of the saw blade 3. When the horizontal laser reference line 21 or the vertical laser reference line 22 emitted by the laser level 2 is projected into the reference groove, the operator can accurately determine the spatial orientation of the saw blade 3 by observing the alignment of the laser line with the groove wall.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An orthopedic oscillating saw, characterized in that, include: Oscillating saw body (1); A laser level (2) is installed on the swing saw body (1) and is used to emit a horizontal laser reference line (21). The saw blade (3) is mounted on the swing saw body (1) at one end and has saw teeth at the other end; the saw blade (3) is provided with a first reference part (31) extending along the width direction of the saw blade (3); the first reference part (31) is located on the saw blade (3) at one end near the saw teeth; When the horizontal laser reference line (21) is aligned or parallel to the first reference part (31), the osteotomy surface of the saw blade (3) is parallel to the horizontal plane.

2. The orthopedic oscillating saw as described in claim 1, characterized in that, The laser level (2) can also be used to emit a vertical laser reference line (22); the saw blade (3) is also provided with a second reference part (32) extending along the length direction of the saw blade (3); when the vertical laser reference line (22) is aligned or parallel to the second reference part (32), it is used to calibrate the installation position of the laser level (2).

3. The orthopedic oscillating saw as described in claim 2, characterized in that, There are multiple second reference parts (32), and each second reference part (32) is arranged on the saw blade (3) at intervals; the vertical laser reference line (22) can be selectively aligned with or parallel to one of the second reference parts (32).

4. The orthopedic oscillating saw as described in claim 3, characterized in that, At least one of the second reference portions (32) extends along the centerline of the saw blade (3) along its length direction.

5. The orthopedic oscillating saw as described in claim 3, characterized in that, The saw blade (3) is also provided with scale lines (33) arranged sequentially along the length of the saw blade (3).

6. The orthopedic oscillating saw as described in any one of claims 1 to 5, characterized in that, It also includes a limiting member (4), which can be installed at a predetermined position on the saw blade (3) to limit the cutting depth of the saw blade (3).

7. The orthopedic oscillating saw as described in claim 6, characterized in that, The limiting member (4) includes a limiting body (41) and a fastener (42). The limiting body (41) has a slot (411) into which the saw blade (3) can be inserted. The fastener (42) is connected to the limiting body (41) and one end of the fastener (42) extends into the slot (411) to abut against the saw blade (3).

8. The orthopedic oscillating saw as described in claim 7, characterized in that, There are at least two fasteners (42), and each fastener (42) is respectively disposed on both sides of the limiting body (41).

9. The orthopedic oscillating saw as described in any one of claims 1 to 5, characterized in that, The saw blade (3) includes a first blade and a second blade that are parallel to each other and not on the same plane. The second blade is mounted on the swing saw body (1). The saw teeth are located on the first blade, and the first blade is flush with or parallel to the horizontal laser reference line (21).

10. The orthopedic oscillating saw according to any one of claims 1 to 5, characterized in that, The first reference part (31) and / or the second reference part (32) are reference slots.

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