Ultrasonic knife transducer

Abstract

The utility model relates to the technical field of ultrasonic knives, in particular to an ultrasonic knife transducer which comprises a transducer core body, a bolt head and a second cover plate, a first slotted hole and a second slotted hole are formed in the middle of the upper half portion of the transducer core body, first protrusions are arranged on the left side and the right side of the transducer core body, a first cover plate is fixedly connected to the lower side of the transducer core body, and a second cover plate is fixedly connected to the lower side of the transducer core body. A mounting groove hole is formed in the middle of the lower side of the first cover plate, and through the arrangement of the first protrusion, the second protrusion, the limiting shaft, the third protrusion and the fourth protrusion, the device can limit the first protrusion, the second protrusion, the third protrusion and the fourth protrusion through the limiting shaft fixedly connected with the second protrusion; the transducer core body, the electrode plate, the ceramic plate and the second cover plate cannot rotate relatively, in the process of tightening the second bolt rod, the transducer core body, the electrode plate, the ceramic plate and the second cover plate are prevented from rotating relatively, and the surface of the ceramic plate is prevented from being scratched or the ceramic plate is prevented from being broken.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic scalpel technology, specifically to an ultrasonic scalpel transducer. Background Technology

[0002] The principle of ultrasonic scalpel is to use ultrasonic transducers to generate vibrations. The ultrasonic waves emitted by the ultrasonic transducers propagate along the longitudinal axis of the scalpel shaft, and then generate amplified vibrations along the axis on the scalpel shaft. Finally, high-speed longitudinal mechanical motion is generated at the tip of the scalpel. The mechanical vibration at the tip of the scalpel is very effective in cutting soft tissue, and the heat generated by the high-frequency ultrasonic vibration can coagulate tissue and close blood vessels.

[0003] During the assembly of an ultrasonic scalpel transducer, ceramic plates and electrode plates need to be stacked crosswise on top of the transducer core. Bolts are then passed through the back cover plate, electrode plates, and ceramic plates to connect and fix the bolts to the transducer core. In some existing ultrasonic scalpel transducers, during the tightening of the bolts, the bolts cause the back cover plate, electrode plates, and ceramic plates to rotate. However, the bolts cannot guarantee that the rotation angles of the back cover plate, electrode plates, and ceramic plates are completely consistent. The back cover plate, electrode plates, and ceramic plates will rotate relative to each other, which can scratch the surface of the ceramic plates and may even cause the ceramic plates to break. Therefore, an ultrasonic scalpel transducer is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an ultrasonic scalpel transducer to solve the problem that in some existing ultrasonic scalpel transducers, during the tightening of bolts, the bolts will cause the rear cover plate, electrode plate and ceramic plate to rotate. However, the bolts cannot guarantee that the rotation angles of the rear cover plate, electrode plate and ceramic plate are completely consistent. The rear cover plate, electrode plate and ceramic plate will rotate relative to each other, which will cause scratches on the surface of the ceramic plate and may also cause the ceramic plate to break.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An ultrasonic scalpel transducer includes a transducer core, a bolt head, and a second cover plate. The upper half of the transducer core has a first slot and a second slot at its center. First protrusions are located on both the left and right sides of the transducer core. A first cover plate is fixedly connected to the lower side of the transducer core, and a mounting slot is located at the center of the lower side of the first cover plate. A first bolt rod is fixedly connected to the lower side of the bolt head, and a second bolt rod is fixedly connected to the lower side of the first bolt rod. The second bolt rod and the transducer core are spirally connected. Five electrode plates and four ceramic plates are located on the upper side of the transducer core, and the electrode plates and ceramic plates are arranged alternately. Second protrusions are located on both the left and right sides of each electrode plate, and limiting shafts are fixedly connected to the front and rear sides of each second protrusion. Third protrusions are located on both the left and right sides of each ceramic plate, and the front and rear sides of each third protrusion are in contact with the limiting shafts. A second cover plate is located on the uppermost electrode plate, and a fourth protrusion is located on both the left and right sides of the second cover plate, and the front and rear sides of each fourth protrusion are in contact with the limiting shafts.

[0007] Preferably, the lower side of the first slot is connected to the second slot, the first slot is a cylindrical slot, the second slot and the mounting slot are both threaded slots, the first protrusion, the second protrusion, the third protrusion and the fourth protrusion are all vertically aligned, and the front and rear sides of the first protrusion are in contact with the limiting shaft.

[0008] Preferably, the diameter of the first bolt rod and the outer diameter of the second bolt rod are equal, and a connecting hole is provided in the middle of the electrode plate, the ceramic plate and the second cover plate, and the first bolt rod passes through the connecting hole of the electrode plate, the ceramic plate and the second cover plate.

[0009] Preferably, the diameter of the first bolt rod is equal to the diameter of the connecting hole of the electrode plate, the diameter of the connecting hole of the ceramic plate, and the diameter of the connecting hole of the second cover plate, and the outer side of the second bolt rod is provided with threaded protrusions.

[0010] Preferably, the lower side of the electrode sheet located at the lowest point is in contact with the transducer core, the vertical height of the limiting shaft is equal to the sum of the vertical heights of the electrode sheet and the ceramic sheet, and the upper side of the second cover plate is in contact with the bolt head.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, by setting a first protrusion, a second protrusion, a limiting shaft, a third protrusion, and a fourth protrusion, the device can limit the first protrusion, the second protrusion, the third protrusion, and the fourth protrusion through the limiting shaft fixedly connected to the second protrusion, so that the transducer core, electrode plate, ceramic plate, and second cover plate cannot rotate relative to each other. During the tightening of the second bolt rod, the relative rotation of the transducer core, electrode plate, ceramic plate, and second cover plate is prevented, thus preventing the surface of the ceramic plate from being scratched or from breaking. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the transducer core mounting structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the first bolt rod installation structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the second protrusion mounting structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the mounting structure of the third protrusion of this utility model;

[0019] Figure 7 This is a schematic diagram of the limiting shaft installation structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the fourth protrusion mounting structure of this utility model.

[0021] In the figure: 1. Transducer core; 2. First slot; 3. Second slot; 4. First protrusion; 5. First cover plate; 6. Mounting slot; 7. Bolt head; 8. First bolt rod; 9. Second bolt rod; 10. Electrode plate; 11. Second protrusion; 12. Limiting shaft; 13. Ceramic plate; 14. Third protrusion; 15. Second cover plate; 16. Fourth protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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 utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0025] Please see Figure 1-8 This utility model provides a technical solution:

[0026] An ultrasonic scalpel transducer includes a transducer core 1, a bolt head 7, and a second cover plate 15. The upper half of the transducer core 1 has a first slot 2 and a second slot 3 at its center. First protrusions 4 are provided on both the left and right sides of the transducer core 1. A first cover plate 5 is fixedly connected to the lower side of the transducer core 1. A mounting slot 6 is provided at the center of the lower side of the first cover plate 5. A first bolt rod 8 is fixedly connected to the lower side of the bolt head 7. A second bolt rod 9 is fixedly connected to the lower side of the first bolt rod 8. The second bolt rod 9 and the transducer core 1 are spirally connected. The upper side is provided with five electrode plates 10 and four ceramic plates 13, which are distributed in a cross pattern. The left and right sides of the electrode plates 10 are provided with second protrusions 11, and the front and rear sides of the second protrusions 11 are fixedly connected to the limiting shafts 12. The left and right sides of the ceramic plates 13 are provided with third protrusions 14, and the front and rear sides of the third protrusions 14 are in contact with the limiting shafts 12. The uppermost electrode plate 10 is provided with a second cover plate 15, and the left and right sides of the second cover plate 15 are provided with fourth protrusions 16, and the front and rear sides of the fourth protrusions 16 are in contact with the limiting shafts 12.

[0027] The lower side of the first slot 2 is connected to the second slot 3. The first slot 2 is a cylindrical slot, and the second slot 3 and the mounting slot 6 are both threaded slots. The first protrusion 4, the second protrusion 11, the third protrusion 14, and the fourth protrusion 16 are all vertically aligned. The front and rear sides of the first protrusion 4 are in contact with the limiting shaft 12. The first protrusion 4, the second protrusion 11, the third protrusion 14, and the fourth protrusion 16 are limited by multiple sets of limiting shafts 12. The diameter of the first bolt rod 8 is equal to the outer diameter of the second bolt rod 9. The electrode plate 10, the ceramic plate 13, and the second cover plate 15 are all provided with connecting holes in the middle. The first bolt rod 8 passes through the connecting holes of the electrode plate 10, the ceramic plate 13, and the second cover plate 15. The bolt head 7, the first bolt rod 8, and The second bolt rod 9 can lock the electrode plate 10 and the ceramic plate 13; the diameter of the first bolt rod 8 is equal to the diameter of the connecting hole of the electrode plate 10, the diameter of the connecting hole of the ceramic plate 13, and the diameter of the connecting hole of the second cover plate 15. The outer side of the second bolt rod 9 is provided with threaded protrusions. The bolt head 7, the first bolt rod 8, and the second bolt rod 9 can lock the transducer core 1, the first cover plate 5, and the second cover plate 15; the lower side of the electrode plate 10 located at the bottom is in contact with the transducer core 1, the vertical height of the limiting shaft 12 is equal to the sum of the vertical heights of the electrode plate 10 and the ceramic plate 13, the upper side of the second cover plate 15 is in contact with the bolt head 7, and the first cover plate 5 and the second cover plate 15 can clamp and fix the electrode plate 10 and the ceramic plate 13.

[0028] Workflow: Before use, check that all components are intact. If intact, assembly can proceed. First, place the transducer core 1 and the first cover plate 5 vertically. Place the five electrode plates 10 and four ceramic plates 13 on the upper side of the transducer core 1 in sequence. The lower half of the limiting shafts 12 on both sides of the bottom electrode plate 10 can be engaged with the first protrusion 4. The remaining limiting shafts 12 are engaged with the third protrusion 14. Place the second cover plate 15 on the uppermost electrode plate 10, so that the upper half of the limiting shafts 12 on both sides of the uppermost electrode plate 10 is engaged with the fourth protrusion 16. At this time, the first protrusion 4, the second protrusion 11, the third protrusion 14, and the fourth protrusion 16 are all vertically aligned. The first protrusion 4, the second protrusion 11, the third protrusion 14, and the fourth protrusion 16 are limited by multiple sets of limiting shafts 12, so that the transducer... The core 1, electrode plate 10, ceramic plate 13, and second cover plate 15 cannot rotate relative to each other. Then, hold the bolt head 7 and pass the first bolt rod 8 and the second bolt rod 9 sequentially through the connecting holes of the second cover plate 15, electrode plate 10, and ceramic plate 13 from top to bottom. After the second bolt rod 9 passes through the first slot 2, rotate the bolt head 7. The transducer core 1 has a second slot 3, so that the second bolt rod 9 and the transducer core 1 are spirally connected, and the device can be assembled. Then, the device can be installed on a specific device for use by using the connecting bolts to match the mounting slot 6 of the first cover plate 5. During the tightening of the second bolt rod 9, the device can prevent the transducer core 1, electrode plate 10, ceramic plate 13, and second cover plate 15 from rotating relative to each other, preventing the surface of the ceramic plate 13 from being scratched or broken.

[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0030] 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. An ultrasonic blade transducer comprising a transducer core (1), a bolt head (7) and a second cover plate (15), characterized in that: The upper half of the transducer core (1) is provided with a first slot hole (2) and a second slot hole (3), the left and right sides of the transducer core (1) are provided with a first protrusion (4), the lower side of the transducer core (1) is fixedly connected with a first cover plate (5), the lower side of the first cover plate (5) is provided with a mounting slot hole (6), the lower side of the bolt head (7) is fixedly connected with a first bolt rod (8), the lower side of the first bolt rod (8) is fixedly connected with a second bolt rod (9), the second bolt rod (9) is screwed with the transducer core (1), the upper side of the transducer core (1) is provided with five electrode pieces (10) and four ceramic pieces (13), the electrode pieces (10) and the ceramic pieces (13) are distributed in cross, the left and right sides of the electrode piece (10) are provided with a second protrusion (11), the front and back sides of the second protrusion (11) are fixedly connected with a limiting shaft (12), the left and right sides of the ceramic piece (13) are provided with a third protrusion (14), the front and back sides of the third protrusion (14) are attached with the limiting shaft (12), the upper side of the electrode piece (10) located at the uppermost side is provided with a second cover plate (15), the left and right sides of the second cover plate (15) are provided with a fourth protrusion (16), the front and back sides of the fourth protrusion (16) are attached with the limiting shaft (12).

2. An ultrasonic surgical blade transducer according to claim 1, wherein: The lower side of the first slot hole (2) is communicated with the second slot hole (3), the first slot hole (2) is a cylindrical slot, the second slot hole (3) and the mounting slot hole (6) are threaded slot holes, the first protrusion (4), the second protrusion (11), the third protrusion (14) and the fourth protrusion (16) are vertically aligned, the front and back sides of the first protrusion (4) are attached with the limiting shaft (12).

3. The ultrasonic surgical blade transducer of claim 1, wherein: The diameter of the first bolt rod (8) is equal to the outer diameter of the second bolt rod (9), the middle positions of the electrode piece (10), the ceramic piece (13) and the second cover plate (15) are provided with connecting holes, the first bolt rod (8) passes through the connecting holes of the electrode piece (10), the ceramic piece (13) and the second cover plate (15).

4. The ultrasonic surgical blade transducer of claim 1, wherein: The diameter of the first bolt rod (8) is equal to the diameters of the connecting holes of the electrode piece (10), the ceramic piece (13) and the second cover plate (15), the outer side of the second bolt rod (9) is provided with a threaded protrusion.

5. The ultrasonic surgical blade transducer of claim 1, wherein: The lower side of the electrode piece (10) located at the lowermost side is attached with the transducer core (1), the vertical height of the limiting shaft (12) is equal to the sum of the vertical heights of the electrode piece (10) and the ceramic piece (13), the upper side of the second cover plate (15) is attached with the bolt head (7).

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