Medical reciprocating saw blade

Abstract

The utility model discloses a medical reciprocating saw blade which comprises a fixing frame and a saw blade body, first clamping blocks are arranged above the saw blade body, second clamping blocks are arranged above the saw blade body, the number of the first clamping blocks is two, the two first clamping blocks are symmetrically distributed relative to the second clamping blocks, and the second clamping blocks are symmetrically distributed relative to the second clamping blocks. The saw blade is movably connected with the fixing frame in a clamped mode through two sets of first clamping blocks and two sets of second clamping blocks, two sets of symmetrically-distributed movable frames are arranged in the fixing frame, the two sets of movable frames correspond to the first clamping blocks, the two sets of movable frames are both slidably connected with the fixing frame, and clamping rods are fixedly installed on the movable frames. The two sets of clamping rods are movably connected with the corresponding first clamping blocks in a clamped mode, the two sets of movable frames distributed corresponding to the first clamping blocks and the clamping rods are matched with rotating rods, gears, racks and the like, so that the saw blade is rapidly clamped, fixed or disassembled, and the fixed frame is always installed on the reciprocating saw; the saw blade can be matched with the fixing frame to achieve rapid clamping or disassembling.

Description

Technical Field

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

[0002] Medical reciprocating saws are used to convert rotary motion into reciprocating motion, enabling the saw blade to cut bone tissue at high frequency for surgical treatment. Existing medical reciprocating saws include a saw blade and a handle assembly. The handle assembly includes a handle housing, a reciprocating shaft disposed within the handle housing, and a transmission mechanism for driving the reciprocating motion of the reciprocating shaft. The reciprocating shaft is connected to the saw blade to drive the saw blade.

[0003] In the existing technology, the installation of saw blades requires the use of bolts and screws as connectors. During surgical treatment, the replacement of reciprocating saw blades requires the removal of bolts and screws. The replacement of saw blades is time-consuming and complicated. Furthermore, if the saw blade is not securely fixed, it will greatly affect the safe use of the reciprocating saw. Utility Model Content

[0004] The purpose of this invention is to provide a medical reciprocating saw blade to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical reciprocating saw blade, comprising a fixed frame and a saw blade, a first locking block above the saw blade, a second locking block above the saw blade, two sets of the first locking blocks being symmetrically distributed about the second locking block, the saw blade being movably engaged with the fixed frame via the two sets of the first and second locking blocks, two sets of symmetrically distributed movable frames within the fixed frame, the two sets of movable frames corresponding to the first locking blocks, both sets of movable frames being slidably connected to the fixed frame, locking rods fixedly installed on the movable frames, both sets of locking rods being movably engaged with the corresponding first locking blocks, two sets of locking brackets within the fixed frame, the two sets of locking brackets being symmetrically distributed about the second locking block, both sets of locking brackets being movably engaged with the second locking block, both sets of locking brackets being slidably connected to the fixed frame, and two sets of symmetrically distributed bidirectional lead screws within the fixed frame.

[0006] As a further preferred embodiment of this technical solution, racks are fixedly installed on both sets of the movable frames. The fixed frame is provided with two sets of gears corresponding to the first locking block. The two sets of gears are respectively meshed with the two sets of corresponding racks. The two sets of gears are rotatably connected to the fixed frame through rotating rods. The fixed frame is provided with a first synchronous belt.

[0007] As a further preferred embodiment of this technical solution, the two sets of rotating rods pass through the fixed frame and are rotatably connected to the fixed frame through bearings. Each set of rotating rods is fitted with a first synchronous pulley, and the first synchronous belt is respectively connected to the two sets of first synchronous pulleys for transmission.

[0008] As a further preferred embodiment of this technical solution, a compression spring is sleeved on each of the two sets of clamping rods, and a stop block is fixedly sleeved on each of the two sets of clamping rods. The two ends of the compression spring are respectively fixedly connected to the stop block and the fixing frame.

[0009] As a further preferred embodiment of this technical solution, a torsion spring is sleeved on the rotating rod, and the two ends of the torsion spring are respectively fixedly connected to the rotating rod and the fixing frame.

[0010] As a further preferred embodiment of this technical solution, the two ends of the two sets of bidirectional lead screws respectively pass through the fixing frame and are rotatably connected to the fixing frame through bearings, and the two ends of the two sets of lead screws respectively pass through the corresponding two sets of clamps and are threadedly connected to the two sets of clamps respectively.

[0011] As a further preferred embodiment of this technical solution, each of the two sets of bidirectional lead screws is fitted with a second synchronous pulley, and the fixed frame is provided with a second synchronous belt, which is respectively connected to the two sets of second synchronous pulleys for transmission.

[0012] This utility model provides a medical reciprocating saw blade, which has the following beneficial effects:

[0013] (1) This utility model achieves quick clamping, fixing, or disassembly of the saw blade by using two sets of movable frames corresponding to the first clamping block, as well as clamping rods, rotating rods, gears, and racks. The fixing frame itself is always installed on the reciprocating saw, and the saw blade can be quickly clamped or disassembled in conjunction with the fixing frame. This not only saves the time required for saw blade replacement, but also provides accurate positioning and simple operation, greatly facilitating the use of the medical reciprocating saw. By rotating the rotating rod on the left side, and cooperating with the first synchronous wheel and the first synchronous belt, the two sets of rotating rods can be moved simultaneously. As the rotating rod rotates, the gears mounted on it also rotate. Simultaneously, the racks on both sides of the gears, which mesh with them, move to the sides, driving the moving frames fixed to them to move. The two moving frames drive the two sets of locking rods to move to the sides simultaneously. Then, the new saw blade is locked onto the fixed frame by the first locking block and the second locking block. Since the locking slots on the fixed frame correspond to the first locking block and the second locking block, the locking rods correspond to the positions of the first locking block. When the left rotating rod is released, the saw blade is effectively fixed under the action of the torsion spring and the compression spring.

[0014] (2) This utility model reinforces the saw blade installation by using two sets of clamps in conjunction with the second clamping block on the basis of the clamping rod, so that the saw blade is firm and stable during the reciprocating saw operation, ensuring the safe use of the medical reciprocating saw; after the saw blade is initially fixed by the clamping rod and the first clamping block, the second clamping block is located in the fixed frame and corresponds to the two sets of clamps respectively. Rotate the left bidirectional screw, and under the action of the second synchronous belt and the second synchronous wheel, the two sets of bidirectional screws rotate synchronously. Under the limiting action of the fixed frame, the two sets of clamps slide inward synchronously until they are firmly engaged with the clamping block and the bidirectional screws can no longer rotate. The fixing direction of the two sets of clamps and the two sets of clamping rods for the saw blade is opposite to the movement direction of the saw blade on the reciprocating saw, ensuring that the clamping rod and clamps will not loosen due to long-term reciprocating movement during the use of the saw blade. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 This is a schematic diagram of the saw blade of this utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point -B;

[0020] In the diagram: 1. Fixed frame; 2. Saw blade; 3. First locking block; 4. Second locking block; 5. Moving frame; 6. Locking rod; 7. Compression spring; 8. Stop block; 9. Rack; 10. Gear; 11. Rotating rod; 12. Torsion spring; 13. First synchronous pulley; 14. First synchronous belt; 15. Locking bracket; 16. Double-acting lead screw; 17. Second synchronous pulley; 18. Second synchronous belt. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, a medical reciprocating saw blade includes a fixed frame 1 and a saw blade 2. A first locking block 3 is provided above the saw blade 2, and a second locking block 4 is provided above the saw blade 2. Two sets of first locking blocks 3 are provided, symmetrically distributed about the second locking blocks 4. The saw blade 2 is movably engaged with the fixed frame 1 via the two sets of first locking blocks 3 and the second locking blocks 4. Two sets of symmetrically distributed movable frames 5 are provided inside the fixed frame 1, corresponding to the first locking blocks 3. Both sets of movable frames 5 are slidably connected to the fixed frame 1. Locking rods 6 are fixedly installed on the movable frames 5, and both sets of locking rods 6 are movably engaged with the corresponding first locking blocks 3. Two sets of locking frames 15 are provided inside the fixed frame 1, symmetrically distributed about the second locking blocks 4. Each set of locking frames 15 is movably engaged with the second locking blocks 4, and both sets of locking frames 15 are slidably connected to the fixed frame 1. The device contains two sets of symmetrically distributed bidirectional lead screws 16. Racks 9 are fixedly mounted on both sets of movable frames 5. Two sets of gears 10, corresponding to the first locking block 3, are installed inside the fixed frame 1. The two sets of gears 10 mesh with the two corresponding racks 9. Both sets of gears 10 are rotatably connected to the fixed frame 1 via rotating rods 11. A first synchronous belt 14 is installed inside the fixed frame 1. The two sets of rotating rods 11 pass through the fixed frame 1 and are rotatably connected to it via bearings. First synchronous pulleys 13 are sleeved on both sets of rotating rods 11. The first synchronous belt 14 is connected to the two sets of first synchronous pulleys 13. Compression springs 7 are sleeved on both sets of locking rods 6. Stop blocks 8 are fixedly sleeved on both sets of locking rods 6. The two ends of the compression springs 7 are fixedly connected to the stop blocks 8 and the fixed frame 1, respectively. Torsion springs 12 are sleeved on the rotating rods 11. The two ends of the torsion springs 12 are fixedly connected to the rotating rods 11 and the fixed frame 1, respectively.

[0023] The saw blade 2 can be quickly clamped, fixed, or disassembled by two sets of movable frames 5 corresponding to the first clamping block 3, along with clamping rods 6, rotating rods 11, gears 10, and racks 9. The fixing frame 1 itself is always mounted on the reciprocating saw, and the saw blade 2 can be quickly clamped or disassembled with the fixing frame 1. This not only saves the time required for changing the saw blade 2, but also provides accurate positioning and simple operation, greatly facilitating the use of the medical reciprocating saw. By rotating the left rotating rod 11, and cooperating with the first synchronous wheel 13 and the first synchronous belt 14, the two sets of rotating rods 11 can rotate synchronously. The gear 10 installed on it rotates accordingly. At the same time as the gear 10 rotates, the racks 9 on both sides of the gear 10 and meshing with the gear 10 move synchronously to both sides, and drive the moving frame 5 fixedly connected to it to move. The two sets of moving frames 5 drive the two sets of locking rods 6 to move synchronously to both sides. Then, the new saw blade 2 is locked onto the fixed frame 1 by the first locking block 3 and the second locking block 4. Since the position of the locking groove on the fixed frame 1 corresponds to the first locking block 3 and the second locking block 4, the position of the locking rod 6 corresponds to the position of the first locking block 3. The left rotating rod 11 is released, and the saw blade 2 is effectively fixed under the action of the torsion spring 12 and the compression spring 7.

[0024] like Figure 2 and Figure 3 As shown, the two ends of the two sets of bidirectional lead screws 16 pass through the fixed frame 1 and are rotatably connected to the fixed frame 1 through bearings. The two ends of the two sets of lead screws pass through the corresponding two sets of clamps 15 and are threadedly connected to the two sets of clamps 15 respectively. A second synchronous pulley 17 is sleeved on each of the two sets of bidirectional lead screws 16. A second synchronous belt 18 is provided in the fixed frame 1. The second synchronous belt 18 is connected to the two sets of second synchronous pulleys 17 respectively.

[0025] The two sets of clamps 15, together with the second clamping block 4, reinforce the installation of the saw blade 2 on the basis of the clamping rod 6, so that the saw blade 2 is firmly and stably installed during the reciprocating saw operation, ensuring the safe use of the medical reciprocating saw. After the saw blade 2 is initially fixed by the clamping rod 6 and the first clamping block 3, the second clamping block 4 is located in the fixing frame 1 and corresponds to the two sets of clamps 15 respectively. The left bidirectional screw 16 is rotated, and under the action of the second synchronous belt 18 and the second synchronous wheel 17, the two sets of bidirectional screws 16 rotate synchronously. Under the limiting action of the fixing frame 1, the two sets of clamps 15 slide inward synchronously until they are firmly engaged with the clamping block and the bidirectional screw 16 can no longer rotate. The fixing direction of the two sets of clamps 15 and the two sets of clamping rods 6 for the saw blade 2 is opposite to the movement direction of the saw blade 2 on the reciprocating saw, ensuring that the clamping rod 6 and the clamping bracket 15 will not loosen due to long-term reciprocating movement during the use of the saw blade 2.

[0026] This utility model provides a medical reciprocating saw blade, the specific working principle of which is as follows: By rotating the left rotating rod 11, and cooperating with the first synchronous wheel 13 and the first synchronous belt 14, the two sets of rotating rods 11 are rotated synchronously. The gears 10 installed on the rotating rods 11 rotate accordingly. At the same time as the gears 10 rotate, the racks 9 on both sides of the gears 10 and meshing with the gears 10 move synchronously to both sides, and drive the moving frame 5 fixedly connected to it to move. The two sets of moving frames 5 drive the two sets of locking rods 6 to move synchronously to both sides. Then, the new saw blade 2 is locked onto the fixed frame 1 by the first locking block 3 and the second locking block 4. Since the position of the locking groove on the fixed frame 1 corresponds to the first locking block 3 and the second locking block 4, the position of the locking rod 6 corresponds to the position of the first locking block 3. The left rotating rod 11 is released, and the saw blade is twisted... The rotation spring 12 and compression spring 7 effectively achieve the initial fixation of the saw blade 2. After the saw blade 2 is initially fixed by the locking rod 6 and the first locking block 3, the second locking block 4 is located in the fixing frame 1 and corresponds to the two sets of locking brackets 15 respectively. The left double-acting screw 16 is rotated, and the two sets of double-acting screws 16 rotate synchronously under the action of the second synchronous belt 18 and the second synchronous wheel 17. Under the limiting action of the fixing frame 1, the two sets of locking brackets 15 slide inward synchronously until they are firmly locked with the locking blocks and the double-acting screw 16 can no longer rotate. The fixing direction of the two sets of locking brackets 15 and the two sets of locking rods 6 for the saw blade 2 is opposite to the movement direction of the saw blade 2 on the reciprocating saw, ensuring that the locking rod 6 and the locking bracket 15 will not loosen due to long-term reciprocating movement during the use of the saw blade 2.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical reciprocating saw blade, comprising a fixing frame (1) and a saw blade (2), characterized in that: The saw blade (2) is provided with a first locking block (3) above it and a second locking block (4) above it. There are two sets of the first locking blocks (3), symmetrically distributed about the second locking block (4). The saw blade (2) is movably engaged with the fixed frame (1) via the two sets of first locking blocks (3) and the second locking block (4). The fixed frame (1) contains two symmetrically distributed movable frames (5), each corresponding to one of the first locking blocks (3). Both sets of movable frames (5) are connected to the fixed frame (1). The movable frame (5) is fixedly installed with a locking rod (6). Both sets of locking rods (6) are movably engaged with the corresponding first locking block (3). The fixed frame (1) is provided with a locking bracket (15). The number of locking brackets (15) is set to two sets. The two sets of locking brackets (15) are symmetrically distributed about the second locking block (4). The two sets of locking brackets (15) are movably engaged with the second locking block (4) respectively. Both sets of locking brackets (15) are slidably connected to the fixed frame (1). The fixed frame (1) is provided with two sets of symmetrically distributed bidirectional screw rods (16).

2. The medical reciprocating saw blade according to claim 1, characterized in that: Both sets of movable frames (5) are fixedly installed with racks (9). The fixed frame (1) is provided with two sets of gears (10) corresponding to the first locking block (3). The two sets of gears (10) are respectively meshed with the two sets of corresponding racks (9). The two sets of gears (10) are rotatably connected to the fixed frame (1) through a rotating rod (11). The fixed frame (1) is provided with a first synchronous belt (14).

3. A medical reciprocating saw blade according to claim 2, characterized in that: The two sets of rotating rods (11) pass through the fixed frame (1) and are rotatably connected to the fixed frame (1) through bearings. The two sets of rotating rods (11) are each fitted with a first synchronous pulley (13). The first synchronous belt (14) is connected to the two sets of first synchronous pulleys (13) respectively.

4. A medical reciprocating saw blade according to claim 1, characterized in that: Both sets of clamp rods (6) are fitted with compression springs (7), and both sets of clamp rods (6) are fixedly fitted with stops (8). The two ends of the compression springs (7) are fixedly connected to the stops (8) and the fixing frame (1), respectively.

5. A medical reciprocating saw blade according to claim 2, characterized in that: A torsion spring (12) is sleeved on the rotating rod (11), and the two ends of the torsion spring (12) are fixedly connected to the rotating rod (11) and the fixing frame (1) respectively.

6. A medical reciprocating saw blade according to claim 1, characterized in that: The two ends of the two sets of bidirectional lead screws (16) pass through the fixed frame (1) and are rotatably connected to the fixed frame (1) through bearings. The two ends of the two sets of lead screws pass through the corresponding two sets of clamps (15) and are threadedly connected to the two sets of clamps (15).

7. A medical reciprocating saw blade according to claim 1, characterized in that: Both sets of bidirectional lead screws (16) are fitted with second synchronous pulleys (17), and the fixed frame (1) is provided with a second synchronous belt (18), which is connected to the two sets of second synchronous pulleys (17) respectively.

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