Ultrasonic osteotome machine working tip

Abstract

The invention discloses an ultrasonic osteotome machine work tip, and belongs to the technical field of medical instruments, the ultrasonic osteotome machine work tip comprises a work tip connecting part and a telescopic rod movably connected in the work tip connecting part, a positioning seat is fixed on the outer wall of one side of the work tip connecting part, and a rotating sleeve is rotatably connected in the positioning seat; a driving bevel gear is fixed to the outer wall of the rotating sleeve, an adjusting block is movably connected to the outer wall of one side of the positioning seat, a limiting block is fixed in the working tip connecting part, a rotating hole is formed in the limiting block, and an adjusting screw rod in threaded connection with the telescopic rod is rotationally connected in the rotating hole of the limiting block; a work tip neck is fixed to the top of the telescopic rod, a work tip head is fixed to the top of the work tip neck, and a blade is fixed to one end of the work tip head. According to the ultrasonic osteotome machine working tip, the length of the working tip can be flexibly adjusted according to the actual use condition, and chippings generated by cutting can be collected.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to an ultrasonic bone knife working tip. Background Art

[0002] Ultrasonic bone has many characteristics and advantages that traditional manual and electric orthopedic surgical instruments cannot match. Clinical surgical results have shown that compared with traditional spinal surgical instruments such as traditional bone knives, high-speed drills, and bone tongs, ultrasonic bone knives can effectively and accurately cut bones while better reducing the risk of damage to soft tissues such as nerves and blood vessels, improving the safety of surgery and the speed of patient recovery. Therefore, it has been widely used in different surgeries.

[0003] The ultrasonic bone knife machine achieves the purpose of bone cutting through ultrasonic vibration of the blade. The ultrasonic bone knife machine is equipped with an ultrasonic transducer as an ultrasonic oscillation source. It converts electrical energy into ultrasonic oscillations to drive the working tip installed on the transducer to work. According to the different cutting methods and methods required by the operation, as well as the targeted cutting objects, the working tip needs to be designed into different shapes to meet different bone surgery requirements. The length of the ultrasonic knife working tip in the prior art cannot be adjusted. When further cutting is required at a deeper position during the operation, the current working tip cannot be adjusted in length, which will limit the doctor's operation and affect the surgical effect. Replacing a longer working tip requires re-disassembly of the working tip, which will affect the efficiency of the operation. Summary of the invention

[0004] The purpose of the present invention is to provide an ultrasonic bone knife working tip to solve the problem that the length of the ultrasonic knife working tip proposed in the above-mentioned background technology cannot be adjusted. When further cutting is required at a deeper position during the operation, the current working tip cannot be adjusted in length, which will limit the doctor's operation and affect the surgical effect. Replacing a longer working tip requires disassembling the working tip again, which will affect the efficiency of the operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultrasonic bone knife machine working tip, comprising a working tip connection part and a telescopic rod movably connected in the working tip connection part, a positioning seat is fixed to an outer wall of one side of the working tip connection part, a rotating sleeve is rotatably connected in the positioning seat, and an active bevel gear is fixed to the outer wall of the rotating sleeve, an adjusting block is movably connected to an outer wall of one side of the positioning seat, a limiting block is fixed in the working tip connection part, a rotating hole is opened on the limiting block, an adjusting screw threadedly connected to the telescopic rod is rotatably connected in the rotating hole of the limiting block, and a driven bevel gear meshing with the active bevel gear is fixed to the lower half of the adjusting screw; A working tip neck is fixed on the top of the telescopic rod, a working tip head is fixed on the top of the working tip neck, and a blade is fixed on one end of the working tip head.

[0006] In a further embodiment, a moving hole is formed at one end of the rotating sleeve, and an adjusting column is movably connected in the moving hole of the rotating sleeve.

[0007] In a further embodiment, a limiting ring is fixed to the outer wall of the adjusting column, and a fixing spring for supporting the limiting ring is sleeved on the outside of the adjusting column.

[0008] In a further embodiment, two fixing pins are symmetrically fixed to an outer wall of one side of the adjustment block facing the positioning seat, and a plurality of fixing holes matching the fixing pins are formed on an outer wall of one side of the positioning seat.

[0009] In a further embodiment, the upper and lower outer walls of the adjusting column are both fixed with limiting rods, and the upper and lower inner walls of the rotating sleeve are both provided with limiting grooves for the limiting rods to move.

[0010] In a further embodiment, the blade is composed of a fixing plate and a cutting wall, and the cutting wall is provided with a cutting edge, and the outer wall of the telescopic rod is provided with a wrench position.

[0011] In a further embodiment, limiting slide blocks are fixed to both side outer walls of the telescopic rod, and both side inner walls of the working tip connecting portion are provided with limiting sliding grooves for the limiting slide blocks to slide.

[0012] Technical effects and advantages of the present invention: The ultrasonic bone knife working tip drives the adjusting column to rotate through the adjusting block, thereby driving the rotating sleeve and the active bevel gear to rotate, and the active bevel gear drives the adjusting screw to rotate through the driven bevel gear, thereby driving the telescopic rod to move in the working tip connection part. The length of the working tip can be flexibly adjusted according to actual use conditions to meet different surgical needs, while making the doctor's operation more convenient. The fixing plate and the cutting wall together form a blade, so that the blade has a cutting function and also has a receiving cavity. During the operation, the bone debris and excess skin tissue generated by the cutting can be collected through the receiving cavity to avoid the bone debris and excess skin tissue generated by the cutting affecting the doctor's vision; By supporting the limit ring with a fixed spring, the two fixing pins are inserted into the fixing holes of the positioning seat, so that the positions of the adjusting column and the adjusting block can be fixed. When no external force is applied, the rotating sleeve can be prevented from accidentally rotating, thereby ensuring the stability of the working tip during operation. The working tip of the ultrasonic bone knife machine can not only flexibly adjust the length of the working tip according to actual usage conditions, but also collect debris generated by cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the positioning seat and the adjusting block of the present invention; Figure 3 It is a structural schematic diagram of the positioning seat and the rotating sleeve of the present invention; Figure 4 It is a schematic diagram of the structure of the positioning seat and the adjusting block of the present invention in a cut-away state; Figure 5 It is a schematic structural diagram of the rotating sleeve of the present invention in a cutaway state; Figure 6 It is a structural schematic diagram of the adjustment column and the adjustment block of the present invention; Figure 7 For the present invention Figure 4 The enlarged view of point A in the middle; Figure 8 It is a schematic diagram of the structure of the present invention without a working tip connection portion.

[0015] In the figure: 1. working tip connection part; 2. positioning seat; 3. rotating sleeve; 4. active bevel gear; 5. adjusting column; 6. adjusting block; 7. limiting ring; 8. fixing spring; 9. limiting rod; 10. fixing pin; 11. limiting block; 12. adjusting screw; 13. driven bevel gear; 14. telescopic rod; 15. limiting slider; 16. wrench position; 17. working tip neck; 18. working tip head; 19. blade. DETAILED DESCRIPTION

[0016] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0017] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this document are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present invention, and are explained here together.

[0018] See also Figure 1-8The present invention provides an ultrasonic bone knife machine working tip, comprising a working tip connection part 1 and a telescopic rod 14 movably connected to the working tip connection part 1, a positioning seat 2 is welded and fixed to the outer wall of one side of the working tip connection part 1, and a rotating sleeve 3 is rotatably connected to the positioning seat 2 through a bearing. The bearing can not only make the rotation between the rotating sleeve 3 and the positioning seat 2 smoother, but also limit the position of the rotating sleeve 3. The rotating sleeve 3 extends into the working tip connection part 1, and an active bevel gear 4 is fixed to the outer wall of the rotating sleeve 3; The adjusting block 5 is welded and fixed with an adjusting block 6 at the end face of the adjusting block 5, and a limiting ring 7 is welded on the outer wall of the adjusting block 5, and a fixing spring 8 for supporting the limiting ring 7 is sleeved on the outer wall of the adjusting block 5. Limiting rods 9 are fixed to the upper and lower outer walls of the adjusting block 5, and limiting grooves for the movement of the limiting rods 9 are provided on the upper and lower inner walls of the rotating sleeve 3. The limiting rods 9 can limit the moving path of the adjusting column 5, and at the same time, when the adjusting column 5 rotates, the rotating sleeve 3 can be driven to rotate synchronously. Two fixing pins 10 are symmetrically fixed to the outer wall of one side of the adjusting block 6 facing the positioning seat 2, and a plurality of fixing holes matching the fixing pins 10 are provided on the outer wall of one side of the positioning seat 2. The fixing spring 8 supports the limiting ring 7, so that the two fixing pins 10 are inserted into the fixing holes of the positioning seat 2, so as to fix the positions of the adjusting block 5 and the adjusting block 6. When no external force is applied, the rotating sleeve 3 is prevented from rotating accidentally, thereby ensuring the stability of the working tip during operation. A limit block 11 is fixed inside the working tip connection part 1, and a rotation hole is opened on the limit block 11. An adjusting screw 12 threadedly connected to the telescopic rod 14 is rotatably connected in the rotation hole of the limit block 11 through a bearing. The limit block 11 can limit the position of the adjusting screw 12, and the bearing is used to ensure that the adjusting screw 12 can only rotate in the limit block 11 without moving. A driven bevel gear 13 meshing with the active bevel gear 4 is fixed to the outside of the lower half of the adjusting screw 12. The outer walls of both sides of the telescopic rod 14 are fixed with limit sliders 15. The inner sides of the working tip connection part 1 are The wall is provided with a limit slide groove for the limit slider 15 to slide. The adjustment column 5 is driven to rotate through the adjustment block 6, thereby driving the rotating sleeve 3 and the active bevel gear 4 to rotate. The active bevel gear 4 drives the adjusting screw 12 to rotate through the driven bevel gear 13. At the same time, the limit slider 15 moves in the limit slide groove of the working tip connection part 1, which can limit the moving path of the telescopic rod 14, thereby driving the telescopic rod 14 to move in the working tip connection part 1. The length of the working tip can be flexibly adjusted according to the actual use situation to meet different surgical needs and make the doctor's operation more convenient. A working tip neck 17 is welded to the top of the telescopic rod 14, a working tip head 18 is fixed to the top of the working tip neck 17, and a blade 19 is fixed to one end of the working tip head 18, the blade 19 is composed of a fixing plate and a cutting wall, and the cutting wall is provided with a cutting edge, the fixing plate and the cutting wall together form the blade 19, so that the blade 19 has a cutting function while also having a receiving cavity, during the operation, the receiving cavity can collect bone debris and excess skin tissue produced by the cutting, so as to avoid the bone debris and excess skin tissue produced by the cutting affecting the doctor's line of sight, the outer wall of the telescopic rod 14 is provided with a wrench position 16, through the wrench position 16, the working tip can be conveniently installed and fixed.

[0019] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0020] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Working principle: When the ultrasonic bone knife working tip is in use, the working tip connection part 1 is connected to the ultrasonic bone knife. During the operation, the bone debris and excess skin tissue generated by cutting are collected through the accommodating cavity on the blade 19 to prevent the bone debris and excess skin tissue generated by cutting from affecting the doctor's vision. When it is necessary to adjust the length of the working tip, the adjusting block 6 is pulled outward, the adjusting block 6 drives the adjusting column 5 to move, the adjusting column 5 drives the limiting ring 7 to move, and the fixing spring 8 is compressed. At the same time, the fixing pin 10 is separated from the fixing hole on the positioning seat 2, and the adjusting column 5 is driven to rotate through the adjusting block 6, thereby driving the rotating sleeve 3 and the active bevel gear 4 to rotate, and the active bevel gear 4 drives the adjusting screw 12 to rotate through the driven bevel gear 13. At the same time, the limiting slider 15 moves in the limiting slide groove of the working tip connecting part 1, restricting the moving path of the telescopic rod 14, thereby driving the telescopic rod 14 to move in the working tip connecting part 1. The length of the working tip can be flexibly adjusted according to the actual use situation to meet different surgical needs and make the doctor's operation more convenient. When the position adjustment of the blade 19 is completed, the adjusting block 6 is released, the fixing spring 8 is reset, the limiting ring 7 is supported, and the adjusting block 6 and the fixing pin 10 are pushed to move, so that the two fixing pins 10 are inserted into the fixing holes of the positioning seat 2, and the positions of the adjusting column 5 and the adjusting block 6 are fixed. When no external force is applied, the rotating sleeve 3 is prevented from rotating accidentally, thereby ensuring the stability of the working tip during operation.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic bone cutting machine working tip, comprising a working tip connecting portion (1) and a telescopic rod (14) movably connected to the working tip connecting portion (1), characterized in that: A positioning seat (2) is fixed to an outer wall of one side of the working tip connection part (1), a rotating sleeve (3) is rotatably connected to the positioning seat (2), and an active bevel gear (4) is fixed to the outer wall of the rotating sleeve (3), an adjusting block (6) is movably connected to the outer wall of one side of the positioning seat (2), a limiting block (11) is fixed to the working tip connection part (1), a rotating hole is formed on the limiting block (11), an adjusting screw (12) threadedly connected to the telescopic rod (14) is rotatably connected to the rotating hole of the limiting block (11), and a driven bevel gear (13) meshing with the active bevel gear (4) is fixed to the outside of the lower half of the adjusting screw (12); A working tip neck (17) is fixed to the top of the telescopic rod (14), a working tip head (18) is fixed to the top of the working tip neck (17), and a blade (19) is fixed to one end of the working tip head (18).

2. The ultrasonic bone cutting machine working tip according to claim 1, characterized in that: A moving hole is formed at one end of the rotating sleeve (3), and an adjusting column (5) is movably connected in the moving hole of the rotating sleeve (3).

3. The ultrasonic bone cutting machine working tip according to claim 2, characterized in that: A limiting ring (7) is fixed to the outer wall of the adjusting column (5), and a fixing spring (8) for supporting the limiting ring (7) is sleeved on the outside of the adjusting column (5).

4. The ultrasonic bone cutting machine working tip according to claim 2, characterized in that: Two fixing pins (10) are symmetrically fixed on an outer wall of one side of the adjustment block (6) facing the positioning seat (2), and a plurality of fixing holes matching the fixing pins (10) are formed on an outer wall of one side of the positioning seat (2).

5. The ultrasonic bone cutting machine working tip according to claim 2, characterized in that: Limit rods (9) are fixed to the upper and lower outer walls of the adjusting column (5), and limit grooves for the limit rods (9) to move are provided on the upper and lower inner walls of the rotating sleeve (3).

6. The ultrasonic bone cutting machine working tip according to claim 1, characterized in that: The blade (19) is composed of a fixing plate and a cutting wall, and the cutting wall is provided with a cutting edge. The outer wall of the telescopic rod (14) is provided with a wrench position (16).

7. The ultrasonic bone cutting machine working tip according to claim 1, characterized in that: Limiting slide blocks (15) are fixed to both side outer walls of the telescopic rod (14), and limiting sliding grooves for the limiting slide blocks (15) to slide are provided on both side inner walls of the working tip connecting portion (1).

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