A split ultrasonic bone cutter suitable for surgical power equipment

Abstract

The utility model discloses a kind of split type ultrasonic osteotome suitable for surgical power equipment, it is related to medical equipment technical field;To solve the problem of resource waste and cumbersome operation caused by the incompatibility of ultrasonic host and ultrasonic osteotome power equipment in prior art, the following technical scheme is proposed: the utility model includes tool bit, tool bar, ultrasonic handle, connecting cable, adapter, locking piece, power handle, ultrasonic handle converts high-frequency electric energy into mechanical vibration, and mechanical vibration is transmitted to tool bit, tool bit is arranged at the end of tool bar, the end of tool bar away from tool bit is arranged on ultrasonic handle, one end of ultrasonic handle is connected to adapter by connecting cable, adapter is detachably connected on power handle, adapter and power handle are connected by locking piece, the utility model improves the energy transmission structure and adaptation interface of ultrasonic osteotome, so that it can share the same host with existing surgical power equipment.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a split-type ultrasonic bone scalpel suitable for surgical power equipment. Background Technology

[0002] With the rapid development of modern medicine, ultrasonic surgical instruments are increasingly used in clinical surgical treatment. They apply ultrasonic energy to surgery, offering advantages such as precise cutting, safety, tissue selectivity, and low-temperature hemostasis. This greatly enriches surgical methods, improves the quality of surgical procedures, and alleviates patient suffering to some extent, as exemplified by the ultrasonic bone scalpel. The ultrasonic bone scalpel is a surgical instrument that utilizes ultrasonic waves to create high-frequency mechanical vibrations of up to tens of thousands of times per second. It can cut and grind bone tissue. Because the ultrasonic bone scalpel causes relatively little damage to blood vessels and nerves when cutting bone tissue, its application in orthopedic surgery, especially in spinal laminectomy, is becoming increasingly widespread.

[0003] In existing technologies, ultrasonic bone scalpels typically require a cable connection to a separate ultrasonic host for ultrasonic energy transmission. For example, the minimally invasive ultrasonic bone power system disclosed in application number CN201810081767.X only supports ultrasonic scalpels; other power devices such as shaving blades and drill bits cannot be used. Furthermore, the host devices of these power devices cannot be used with ultrasonic bone scalpels. Therefore, it is necessary to improve existing surgical power devices and ultrasonic bone scalpels to make them compatible, thereby reducing the need for ultrasonic hosts and accessories and avoiding resource waste. Utility Model Content

[0004] The purpose of this invention is to provide a split-type ultrasonic bone scalpel suitable for surgical power equipment, so as to solve the problems of resource waste and cumbersome operation caused by the incompatibility between the ultrasonic host and the ultrasonic bone scalpel power equipment in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A split-type ultrasonic bone scalpel suitable for surgical power equipment includes a blade head, a blade shaft, an ultrasonic handle, a connecting cable, an adapter, a locking component, and a power handle. The ultrasonic handle converts high-frequency electrical energy into mechanical vibration and transmits the mechanical vibration to the blade head. The blade head is located at the end of the blade shaft, and the end of the blade shaft away from the blade head is located on the ultrasonic handle. The other end of the ultrasonic handle is connected to the adapter via the connecting cable. The adapter is detachably connected to the power handle, and the connection between the adapter and the power handle is locked by the locking component.

[0007] Furthermore, it also includes an ultrasonic guide rod, an amplitude transformer, and an ultrasonic transducer. The ultrasonic transducer is located inside the ultrasonic handle and is connected to the ultrasonic guide rod via the amplitude transformer. The ultrasonic guide rod is connected to the cutter head via the inside of the cutter bar.

[0008] Furthermore, it also includes a rectifier module and a receiver module, with the rectifier module connected to the receiver module via a connecting cable.

[0009] Furthermore, it also includes a winding coil, a magnetic column, and a driven shaft. The magnetic column is rotatably positioned at the end of the receiving module away from the connecting cable, and the driven shaft is fixedly positioned at the other end of the magnetic column. A winding coil is arranged around the outside of the magnetic column.

[0010] Furthermore, it also includes a cable interface, a drive motor, and a drive shaft. The drive motor is located inside the power handle, and the output end of the drive motor is equipped with a drive shaft. The end of the power handle away from the drive shaft is equipped with a cable interface, which is connected to the drive motor via a wire.

[0011] Furthermore, the ends of the drive shaft and the driven shaft mesh, and the drive motor drives the driven shaft to rotate through the drive shaft.

[0012] Furthermore, it also includes a first protective sleeve and a second protective sleeve. The first protective sleeve is disposed on the outside of the drive shaft and is fixedly connected to the power handle. The second protective sleeve is disposed on the outside of the driven shaft and is fixedly connected to the receiving module. The first protective sleeve and the second protective sleeve are detachably connected.

[0013] Furthermore, it also includes cable connectors, which are located at the connection point between the connecting cable and the ultrasonic handpiece, as well as at the connection point between the connecting cable and the adapter.

[0014] This utility model has the following beneficial effects:

[0015] This invention improves the energy transmission structure and adapter interface of the ultrasonic bone scalpel, enabling it to share the same main unit with existing surgical power equipment. This eliminates the problem of redundant configuration caused by the single adapter between the main unit and the instrument in traditional technologies, reducing equipment purchase and maintenance costs. The unlocking mechanism allows for a tight fit between the ultrasonic handle and the power handle, facilitating their installation, locking, unlocking, and disassembly. This saves resources such as the ultrasonic main unit and accessories, and expands the compatibility and reusability of the power system. Furthermore, the connection between the power handle and the ultrasonic handle via a cable reduces the weight of the grip (i.e., the ultrasonic handle) while improving the flexibility of using the ultrasonic bone scalpel. Attached Figure Description

[0016] Figure 1 A side view of a split-type ultrasonic bone scalpel suitable for surgical power equipment;

[0017] Figure 2 A front view of a split-type ultrasonic bone scalpel suitable for surgical power equipment;

[0018] Figure 3A cross-sectional view of a split-type ultrasonic bone scalpel suitable for surgical power equipment;

[0019] Figure 4 This is a magnified schematic diagram of the structure at point A of a split-type ultrasonic bone scalpel suitable for surgical power equipment.

[0020] Figures 1 to 4 The reference numerals in the accompanying drawings represent 1-blade head, 2-blade holder, 3-ultrasonic handle, 4-connecting cable, 5-adapter, 6-locking component, 7-power handle, 8-cable interface, 9-cable connector, 10-ultrasonic guide rod, 11-amplifier rod, 12-ultrasonic transducer, 13-rectifier module, 14-receiving module, 15-drive motor, 16-winding coil, 17-magnetic column, 18-driven shaft, 19-drive shaft, 20-first protective sleeve, and 21-second protective sleeve. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] As attached Figure 1-2 As shown, a split-type ultrasonic bone scalpel suitable for surgical power equipment includes a blade head 1, a blade shaft 2, an ultrasonic handle 3, a connecting cable 4, an adapter 5, a locking component 6, and a power handle 7. The ultrasonic handle 3 converts high-frequency electrical energy into mechanical vibration and transmits the mechanical vibration to the blade head 1. The blade head 1 is located at the end of the blade shaft 2 and directly contacts bone tissue, using high-frequency vibration to achieve fine cutting and grinding. The end of the blade shaft 2 away from the blade head 1 is located on the ultrasonic handle 3. The other end of the ultrasonic handle 3 is connected to the adapter 5 via the connecting cable 4. The ultrasonic handle 3 and the power handle 7 are connected via a connecting cable, which effectively reduces the weight of the grip (i.e., the ultrasonic handle 3) and allows for more flexible operation of the grip. The adapter 5 is detachably connected to the power handle 7, and the connection between the adapter 5 and the power handle 7 is locked by the locking component 6. The ultrasonic handle 3 can be separated from the power handle 7, allowing the power handle to provide power for other instruments using the same adapter.

[0023] As attached Figure 3As shown, the ultrasonic transducer 12 is located inside the ultrasonic handle 3. The ultrasonic transducer 12 converts high-frequency electrical energy into mechanical vibration. The ultrasonic transducer 12 is connected to the ultrasonic guide rod 10 through the amplitude transformer 11. The amplitude transformer 11 can amplify the vibration amplitude of the ultrasonic transducer 12 and transmit it to the cutter head 1 through the ultrasonic guide rod 10. The ultrasonic guide rod 10 is connected to the cutter head 1 through the inside of the cutter rod 2. The cutter rod 2 is provided on the outside of the ultrasonic guide rod 10 for protection. In addition to providing the working environment required by the ultrasonic guide rod 10, the cutter rod 2 can also extend the working distance of the cutter head 1, so that the bone cutter can be inserted into the patient's body for operation.

[0024] The rectifier module 13 is connected to the receiver module 14 via the connecting cable 4. The receiver module 14 receives the alternating current generated from the magnetic column 17 and the winding coil 16 and transmits it to the rectifier module 13 via the connecting cable 4. The rectifier module 13 converts the alternating current transmitted by the receiver module 14 into high-frequency electrical energy required for the operation of the ultrasonic transducer 12. At the same time, it removes noise (such as low-frequency interference signals) through the filtering circuit and matches the resonant frequency of the ultrasonic transducer 12 through the tuning circuit.

[0025] It also includes a cable interface 9, a drive motor 15, and a drive shaft 19. The drive motor 15 is located inside the power handle 7. The drive shaft 19 is located at the output end of the drive motor 15. The cable interface 9 is located at the end of the power handle 7 away from the drive shaft 19. The cable interface 9 is connected to the drive motor 15 through a wire. The drive motor 15 directly drives the drive shaft 19 to provide the original mechanical power for the ultrasonic bone scalpel.

[0026] As attached Figure 4 As shown, the magnetic column 17 is rotatably mounted at one end of the receiving module 14 away from the connecting cable 4, and a driven shaft 18 is fixedly mounted at the other end of the magnetic column 17. A winding coil 16 is arranged around the outside of the magnetic column 17. The driven shaft 18 meshes with the driving shaft 19, and the two rotate synchronously. The driving shaft 19 and the driven shaft 18 mesh through a slot or a gear. When a slot is selected, protrusions and grooves are provided at corresponding positions at the ends of the driving shaft 19 and the driven shaft 18. The protrusions and grooves combine to achieve power transmission. When a gear is selected, crown gears are selected at the ends of both the driving shaft 19 and the driven shaft 18. The crown gears mesh with each other to achieve power transmission. The driven shaft 18 drives the magnetic column 17 to rotate inside the winding coil 16, generating alternating current by cutting magnetic field lines, and providing the alternating current to the receiving module 14.

[0027] It also includes a first protective sleeve 20 and a second protective sleeve 21. The first protective sleeve 20 is disposed on the outside of the drive shaft 19 and is fixedly connected to the power handle 7. The second protective sleeve 21 is disposed on the outside of the driven shaft 18 and is fixedly connected to the receiving module 14. The first protective sleeve 20 and the second protective sleeve 21 are detachably connected.

[0028] A first protective sleeve 20 is provided on the outside of the drive shaft 19, and an annular groove is provided on the outside of the first protective sleeve 20. A second protective sleeve 21 is provided on the outside of the driven shaft 18 of the ultrasonic handle 3. The first protective sleeve 20 and the second protective sleeve 19 are locked by threaded connection or magnetic adsorption. When threaded connection is selected, the top of the first protective sleeve 20 is provided with external thread, and the inside of the second protective sleeve 21 is provided with internal thread. The two are fixed by threaded connection. When magnetic adsorption is selected, magnets with opposite magnetic poles are provided at corresponding positions on the top side of the first protective sleeve 20 and the inner side of the second protective sleeve 21. The two are magnetically attracted and fixed.

[0029] After the adapter 5 and the power handle 7 are connected, they are locked by the locking element 6. The locking element 6 is designed as a rotating ring with a groove and a spring steel ball embedded inside. When the first protective sleeve 20 and the second protective sleeve 21 are connected, rotating the locking element 6 causes the steel ball to engage in the annular groove of the first protective sleeve 20, achieving mechanical locking; when rotated in the opposite direction, the steel ball retracts into the groove, allowing the handle to be quickly separated. A silicone sealing ring and a shock-absorbing pad are installed at the connection point of the two sleeves, effectively isolating external liquid intrusion and reducing vibration transmission noise, minimizing the impact of vibration on the structure, and improving the stability of use. Furthermore, the compact and tight fit of each component improves the accuracy of ultrasonic cutting.

[0030] The connection points of the connecting cable 4 with the rectifier module 13 and the receiver module 14 are respectively provided with cable connectors 9. The cable connectors 9 are rubber connectors, which can effectively protect the connecting cable 4 during the use of the ultrasonic bone scalpel.

[0031] The specific working principle of this application is as follows:

[0032] The drive motor 15 inside the power handle 7 is connected to an external power source or the main unit of the surgical power system via the cable interface 8, driving the drive shaft 19 to rotate. When the adapter 5 is locked to the power handle 7 via the locking member 6, the drive shaft 19 engages with the driven shaft 18 inside the ultrasonic handle, and mechanical power is transmitted to the driven shaft 18, causing the magnetic column 17 at its end to rotate at high speed within the winding coil 16. The magnetic column cuts the magnetic field of the coil to generate an alternating current. The alternating current is transmitted to the rectifier module 13 via the receiving module 14. The rectifier module 13 filters, rectifies, and modulates the frequency of the alternating current to generate a high-frequency current suitable for the operation of the ultrasonic transducer 12.

[0033] The ultrasonic transducer 12 converts high-frequency electrical energy into high-frequency mechanical vibration. After the amplitude is amplified by the amplitude transformer 11, it is transmitted to the cutter head 1 at the end of the cutter bar 2 by the ultrasonic guide rod 10, driving the cutter head 1 to vibrate. The high-frequency vibration energy of the cutter head 1 is concentrated on the contact surface with bone tissue, achieving precise cutting and grinding.

[0034] This invention generates the required high-frequency electrical energy by setting an adapter and a locking component at the rear end of the ultrasonic handle of the ultrasonic bone scalpel. The adapter contains a protective sleeve, a driven shaft, a winding coil, and a circuit board that are connected to the motor output shaft of the power handle. The tight connection and close fit between the unlocking component, the protective sleeve, the docking sleeve, the coil mounting sleeve, and the rubber ring facilitates the installation, locking, unlocking, and disassembly of the ultrasonic bone scalpel and the power handle. Ultimately, this invention enables the application of the ultrasonic bone scalpel to power equipment, saving resources such as the ultrasonic host and accessories, expanding the compatibility and reusability of the power system, and improving the ease of use and stability of the ultrasonic bone scalpel.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type ultrasonic bone scalpel suitable for surgical power equipment, characterized in that, The device includes a blade head (1), a blade rod (2), an ultrasonic handle (3), a connecting cable (4), an adapter (5), a locking component (6), and a power handle (7). The ultrasonic handle (3) converts high-frequency electrical energy into mechanical vibration and transmits the mechanical vibration to the blade head (1). The blade head (1) is located at the end of the blade rod (2). The end of the blade rod (2) away from the blade head (1) is located on the ultrasonic handle (3). The other end of the ultrasonic handle (3) is connected to the adapter (5) via the connecting cable (4). The adapter (5) is detachably connected to the power handle (7). The connection between the adapter (5) and the power handle (7) is locked by the locking component (6).

2. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes an ultrasonic guide rod (10), an amplitude transformer (11), and an ultrasonic transducer (12). The ultrasonic transducer (12) is located inside the ultrasonic handle (3). The ultrasonic transducer (12) is connected to the ultrasonic guide rod (10) through the amplitude transformer (11). The ultrasonic guide rod (10) is connected to the cutter head (1) through the inside of the cutter bar (2).

3. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes a rectifier module (13) and a receiver module (14), wherein the rectifier module (13) is connected to the receiver module (14) via a connecting cable (4).

4. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes a winding coil (16), a magnetic column (17), and a driven shaft (18). The magnetic column (17) is rotatably disposed at one end of the receiving module (14) away from the connecting cable (4). The driven shaft (18) is fixedly disposed at the other end of the magnetic column (17). The winding coil (16) is arranged around the outside of the magnetic column (17).

5. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes a cable interface (8), a drive motor (15), and a drive shaft (19). The drive motor (15) is located inside the power handle (7). The output end of the drive motor (15) is provided with a drive shaft (19). The end of the power handle (7) away from the drive shaft (19) is provided with a cable interface (8). The cable interface (8) is connected to the drive motor (15) through a wire.

6. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 5, characterized in that, The drive shaft (19) meshes with the end of the driven shaft (18), and the drive motor (15) drives the driven shaft (18) to rotate through the drive shaft (19).

7. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes a first protective sleeve (20) and a second protective sleeve (21). The first protective sleeve (20) is located outside the drive shaft (19) and is fixedly connected to the power handle (7). The second protective sleeve (21) is located outside the driven shaft (18) and is fixedly connected to the receiving module (14). The first protective sleeve (20) and the second protective sleeve (21) are detachably connected.

8. The split-type ultrasonic bone scalpel suitable for surgical power equipment according to claim 1, characterized in that, It also includes a cable connector (9), which is located at the connection between the connecting cable (4) and the ultrasonic handpiece (3), and at the connection between the connecting cable (4) and the adapter (5).

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