Hand-held ultrasonic bone drill

Abstract

The utility model discloses a handheld ultrasonic bone drill, including shell, drill, ultrasonic transducer, radio transmission subassembly, drive motor and switch subassembly, the shell includes installation shell part and holds shell part, drill is inserted in the installation shell part front end, ultrasonic transducer is located in the installation shell part, including back cover, piezoelectric element, electrode piece and amplitude transformer, amplitude transformer, piezoelectric element and electrode piece are installed in back cover in turn along the first direction, and amplitude transformer is connected with drill, radio transmission subassembly is electrically connected with electrode piece, and emits ultrasonic signal, drive motor is driven to be connected with ultrasonic transducer, and drive drill rotation, switch subassembly includes the first control switch of radio transmission subassembly electric connection and the second control switch of drive motor electric connection, thus, when the drill rotates, the additional high frequency vibration improves the efficiency and precision of cutting and drilling, reduces the drilling force, improves the lubrication condition, improves the cooling effect, reduces the damage risk to the surrounding soft tissue, improves the operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of surgical treatment equipment technology, specifically to a handheld ultrasonic bone drill. Background Technology

[0002] In modern orthopedic surgery, precise and safe drilling of bone tissue is crucial. Traditional medical bone drills rely on mechanical rotation for drilling, which has many problems. They generate a lot of heat, which can easily lead to thermal damage to bone tissue and affect healing; excessive mechanical stress can damage surrounding soft tissue and cause complications; and for hard bone tissue, the cutting efficiency is low and the precision is poor, making it difficult to meet the requirements of surgical accuracy and safety. Utility Model Content

[0003] The main purpose of this invention is to provide a handheld ultrasonic bone drill to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model proposes a handheld ultrasonic bone drill, comprising:

[0005] The outer casing includes a mounting shell portion and a gripping shell portion that are connected to each other, the mounting shell portion extending along a first direction and the gripping shell portion extending along a second direction;

[0006] A drill bit is inserted at the front end of the mounting housing.

[0007] An ultrasonic transducer, disposed within the mounting housing, includes a rear cover plate, a piezoelectric element, an electrode plate, and an amplitude transformer. The amplitude transformer, the piezoelectric element, and the electrode plate are sequentially mounted on the rear cover plate along the first direction, and the amplitude transformer is connected to the drill bit.

[0008] A radio transmission component, electrically connected to the electrode plate, is used to transmit ultrasonic signals to the ultrasonic transducer so that the ultrasonic transducer generates ultrasonic vibrations.

[0009] A drive motor, connected to the ultrasonic transducer, drives the ultrasonic transducer to rotate the drill bit; and,

[0010] A switching assembly, disposed on the grip shell portion, includes a first control switch and a second control switch. The first control switch is electrically connected to the radio transmission component to control the operating state of the radio transmission component, and the second control switch is electrically connected to the drive motor to control the operating state of the drive motor.

[0011] Optionally, the rear cover plate includes a cover plate portion and a column portion, the column portion extending along the first direction, and the amplitude transformer, the piezoelectric element, the electrode sheet and the cover plate portion being sequentially sleeved on the outside of the column portion along the first direction.

[0012] Optionally, the radio transmission component includes a wireless transmitting unit and a wireless receiving unit. The wireless transmitting unit is used to transmit ultrasonic signals, and the wireless receiving unit is electrically connected to the wireless transmitting unit and the electrode plate to transmit the ultrasonic signals to the ultrasonic transducer for conversion into ultrasonic vibrations.

[0013] Optionally, the handheld ultrasonic bone drill further includes a torque transmitter, one end of which is connected to the ultrasonic transducer, and the drive motor is drivenly connected to the other end of the torque transmitter.

[0014] Optionally, the handheld ultrasonic bone drill further includes an adapter, one end of which is connected to the ultrasonic transducer flange and the other end of which is connected to the torque transmitter.

[0015] Optionally, the handheld ultrasonic bone drill further includes a bearing, which is fixedly installed inside the housing and sleeved on the adapter.

[0016] Optionally, the housing has multiple heat dissipation holes.

[0017] Optionally, the housing has at least one water inlet channel, which extends through the housing and has a port away from the drill bit for connecting to an external water source;

[0018] The drill bit has at least one cooling hole, which is provided through the drill bit along its length and is connected to the water inlet channel.

[0019] Optionally, a temperature sensor is provided inside the drill bit, and the temperature sensor is located near the front end of the drill bit to detect the temperature of the front end of the drill bit;

[0020] A display screen is provided on the outer wall of the housing, and the display screen is electrically connected to the temperature sensor.

[0021] In this invention, a drive motor provides rotational power to the drill bit, causing it to rotate. Simultaneously, a radio transmission component generates ultrasonic signals and transmits them to the ultrasonic transducer. These ultrasonic signals are then converted into ultrasonic vibrations and transmitted to the drill bit. This addition of high-frequency vibration during drill bit rotation improves cutting and drilling efficiency and accuracy, reduces drilling force, improves lubrication, enhances cooling, reduces the risk of damage to surrounding soft tissues, and increases surgical efficiency. Furthermore, the grip shell facilitates operation for the surgeon. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a structure of an embodiment of the handheld ultrasonic bone drill provided by this utility model;

[0024] Figure 2 for Figure 1 A cross-sectional view of a hand holding an ultrasonic bone drill;

[0025] Figure 3 A schematic diagram of another embodiment of the handheld ultrasonic bone drill provided by this utility model.

[0026] Explanation of icon numbers:

[0027] label name label name 100 Handheld ultrasonic bone drill 4 Radio transmission components 1 shell 41 Wireless Transmitter Unit 11 Mounting housing 42 Wireless receiver unit 12 Hold the shell 5 drive motor 2 drill 6 Torque Transmitter 21 Cooling holes 7 adapter 3 ultrasonic transducer 8 bearings 31 Rear cover 9 Switching components 311 Cover plate section 91 First control switch 312 Columnar section 92 Second control switch 32 piezoelectric elements 10 Display screen 33 luffing rod

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] 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.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] In modern orthopedic surgery, precise and safe drilling of bone tissue is crucial. Traditional medical bone drills rely on mechanical rotation for drilling, which has many problems. They generate a lot of heat, which can easily lead to thermal damage to bone tissue and affect healing; excessive mechanical stress can damage surrounding soft tissue and cause complications; and for hard bone tissue, their cutting efficiency is low and their precision is poor, making it difficult to meet the requirements of surgical accuracy and safety.

[0033] In view of this, the present invention provides a handheld ultrasonic bone drill 100. Figure 1 and Figure 2 An embodiment of the handheld ultrasonic bone drill 100 provided by this utility model.

[0034] Please see Figure 1 and Figure 2The handheld ultrasonic bone drill 100 includes a housing 1, a drill bit 2, an ultrasonic transducer 3, a radio transmission assembly 4, a drive motor 5, and a switch assembly 9. The housing 1 includes a connected mounting housing 11 and a gripping housing 12. The mounting housing 11 extends along a first direction, and the gripping housing 12 extends along a second direction. The drill bit 2 is inserted into the front end of the mounting housing 11. The ultrasonic transducer 3 is disposed inside the mounting housing 11 and includes a rear cover plate 31, a piezoelectric element 32, an electrode plate, and an amplitude transformer 33. The amplitude transformer 33, the piezoelectric element 32, and the electrode plate are sequentially mounted on the rear cover plate 31 along the first direction, and the amplitude transformer 33... The system is connected to the drill bit 2; the radio transmission component 4 is electrically connected to the electrode plate and is used to transmit ultrasonic signals to the ultrasonic transducer 3 so that the ultrasonic transducer 3 generates ultrasonic vibration; the drive motor 5 is drivenly connected to the ultrasonic transducer 3 to drive the ultrasonic transducer 3 to rotate the drill bit 2; the switch component 9 is located on the grip shell 12 and includes a first control switch 91 and a second control switch 92. The first control switch 91 is electrically connected to the radio transmission component 4 to control the working state of the radio transmission component 4, and the second control switch 92 is electrically connected to the drive motor 5 to control the working state of the drive motor 5.

[0035] In this invention, the second control switch 92 controls the drive motor 5 to provide rotational power to the drill bit 2, causing the drill bit 2 to rotate. Simultaneously, the first control switch 91 controls the radio transmission component 4 to generate ultrasonic signals and transmit them to the ultrasonic transducer 3. These ultrasonic signals are then converted into ultrasonic vibrations by the ultrasonic transducer 3 and transmitted to the drill bit 2. This addition of high-frequency vibration during the rotation of the drill bit 2 improves the efficiency and accuracy of cutting and drilling, reduces drilling force, improves lubrication, enhances cooling, reduces heat generation, lowers the risk of damage to surrounding soft tissues, improves surgical efficiency, and reduces patient discomfort. Furthermore, the grip shell 12 facilitates operation by providing a convenient grip for the surgeon.

[0036] It should be noted that the electrical connection methods between the first control switch and the radio transmission component 4, and between the second control switch and the drive motor 5, are existing technologies and will not be described in detail here. Furthermore, in this invention, both the first control switch 91 and the second control switch 92 can be operated simultaneously to control the radio transmission component 4 and the drive motor 5 to operate simultaneously, allowing the drill bit 2 to both rotate and vibrate ultrasonically. Alternatively, only the first control switch 91 can be operated to control the radio transmission component 4, causing the drill bit 2 to vibrate ultrasonically only; and only the second control switch 92 can be operated to control the drive motor 5, causing the drill bit 2 to rotate only. Thus, the handheld ultrasonic bone drill 100 has three operating modes for surgeons to choose from according to actual surgical needs, improving its practicality.

[0037] Further, please refer to Figure 2 The rear cover plate 31 includes a cover plate portion 311 and a column portion 312. The column portion 312 extends along the first direction. The amplitude rod 33, the piezoelectric element 32, the electrode sheet and the cover plate portion 311 are sequentially sleeved on the column portion 312 along the first direction.

[0038] Furthermore, the amplitude transformer 33 is threadedly connected to the column portion 312; the connection is stable and convenient for installation or disassembly. More specifically, in one embodiment of this utility model, the end of the column portion 312 near the drill bit 2 is provided with an external thread, and the inner circumferential wall of the amplitude transformer 33 is provided with an internal thread, the internal thread being adapted to the external thread so that the amplitude transformer 33 is threadedly connected to the column portion 312.

[0039] For details, please refer to Figure 2 The radio transmission component 4 includes a wireless transmitting unit 41 and a wireless receiving unit 42. The wireless transmitting unit 41 is used to transmit ultrasonic signals, and the wireless receiving unit 42 is electrically connected to the wireless transmitting unit 41 and the electrode plate, and is used to transmit the ultrasonic signals to the ultrasonic transducer 3 to convert them into ultrasonic vibrations.

[0040] It should be noted that in this utility model, the wireless transmitting unit 41 and the wireless receiving unit 42 use wireless communication technology for signal transmission. This technology is existing technology and will not be described in detail here.

[0041] Furthermore, in one embodiment of the present invention, an installation groove is provided on the inner sidewall of the outer shell 1, and the wireless transmitting unit 41 is installed in the installation groove.

[0042] For details, please refer to Figure 2The handheld ultrasonic bone drill 100 also includes a torque transmitter 6, one end of which is connected to the ultrasonic transducer 3, and the drive motor 5 is drivenly connected to the other end of the torque transmitter 6. Thus, the output shaft of the drive motor 5 drives the torque transmitter 6 to rotate, providing rotational power and torque.

[0043] Further, please refer to Figure 2 The handheld ultrasonic bone drill 100 also includes an adapter 7, one end of which is connected to the flange of the ultrasonic transducer 3, and the other end is connected to the torque transmitter 6. More specifically, the rear cover plate 31, the piezoelectric element 32, and the electrode plate are all disposed within the adapter 7, and the amplitude transformer 33 has a flange at the end away from the drill bit 2 for connection with the flange of the adapter 7.

[0044] Further, please refer to Figure 2 The handheld ultrasonic bone drill 100 also includes a bearing 8, which is fixedly installed inside the housing 1 and sleeved on the outside of the adapter 7, so as to achieve stable installation of the adapter 7 without affecting rotation.

[0045] More specifically, in one embodiment of this utility model, the bearing 8 is a ball bearing.

[0046] It should be noted that the number of bearings 8 in this invention is not limited; one or two bearings can be used, etc. For more details, please refer to [link / reference]. Figure 2 In one embodiment of this utility model, two bearings 8 are provided, and the two bearings 8 are spaced apart along the first direction. Furthermore, a washer is provided between the two bearings 8.

[0047] Specifically, in one embodiment of this utility model, the wireless receiving unit 42 is disposed on the outer periphery of the adapter 7.

[0048] Specifically, the outer casing 1 has multiple heat dissipation holes to facilitate heat dissipation and extend the service life of the electronic components inside the outer casing 1.

[0049] For details, please refer to Figure 3 The outer casing 1 has at least one water inlet channel that penetrates the casing 1, with its port furthest from the drill bit 2 used to connect to an external water source. The drill bit has at least one cooling hole 21 that extends along the length of the drill bit 2 and communicates with the water inlet channel. Thus, by supplying water to the cooling hole 21, the temperature of the drill bit 2 can be reduced, thereby decreasing the probability of thermal damage to bone tissue. More specifically, the external water source is physiological saline.

[0050] It should be noted that in this utility model, the water inlet channel can be provided through the mounting shell 11 or through the grip shell 12.

[0051] Further, please refer to Figure 3 In another embodiment of this utility model, the drill bit 2 has two cooling holes 21.

[0052] For details, please refer to Figure 3 The drill bit 2 is equipped with a temperature sensor located near its front end to detect the temperature of the drill bit's tip. A display screen 10 is mounted on the outer wall of the housing 1 and is electrically connected to the temperature sensor. This allows surgical personnel to conveniently monitor the temperature of the drill bit's tip in real time via the temperature sensor and the display screen 10.

[0053] Furthermore, based on the embodiment described above where "the drill bit 2 has two cooling holes 21", in another embodiment of this utility model, the drill bit 2 has an installation groove located between the two cooling holes 21, and the temperature sensor is located in the installation groove, thereby facilitating the surgeon to monitor the cooling status of the front end of the drill bit 2 in real time and avoid thermal damage to bone tissue.

[0054] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A hand-held ultrasonic bone drill, characterized by The handheld ultrasonic bone drill includes: The outer casing includes a mounting shell portion and a gripping shell portion that are connected to each other, the mounting shell portion extending along a first direction and the gripping shell portion extending along a second direction; A drill bit is inserted at the front end of the mounting housing. An ultrasonic transducer, disposed within the mounting housing, includes a rear cover plate, a piezoelectric element, an electrode plate, and an amplitude transformer. The amplitude transformer, the piezoelectric element, and the electrode plate are sequentially mounted on the rear cover plate along the first direction, and the amplitude transformer is connected to the drill bit. A radio transmission component, electrically connected to the electrode plate, is used to transmit ultrasonic signals to the ultrasonic transducer so that the ultrasonic transducer generates ultrasonic vibrations. A drive motor, connected to the ultrasonic transducer, drives the ultrasonic transducer to rotate the drill bit; and, A switching assembly, disposed on the grip shell portion, includes a first control switch and a second control switch. The first control switch is electrically connected to the radio transmission component to control the operating state of the radio transmission component, and the second control switch is electrically connected to the drive motor to control the operating state of the drive motor.

2. The hand-held ultrasonic bone drill of claim 1 wherein, The rear cover plate includes a cover plate portion and a column portion. The column portion extends along the first direction, and the amplitude transformer, the piezoelectric element, the electrode sheet, and the cover plate portion are sequentially sleeved on the outside of the column portion along the first direction.

3. The hand-held ultrasonic bone drill of claim 1 wherein, The radio transmission assembly includes a wireless transmitting unit and a wireless receiving unit. The wireless transmitting unit is used to transmit ultrasonic signals, and the wireless receiving unit is electrically connected to the wireless transmitting unit and the electrode plate to transmit the ultrasonic signals to the ultrasonic transducer for conversion into ultrasonic vibrations.

4. The hand-held ultrasonic bone drill of claim 1 wherein, The handheld ultrasonic bone drill also includes a torque transmitter, one end of which is connected to the ultrasonic transducer, and the drive motor is driven by the other end of the torque transmitter.

5. The hand-held ultrasonic bone drill of claim 4 wherein, The handheld ultrasonic bone drill also includes an adapter, one end of which is connected to the ultrasonic transducer flange and the other end is connected to the torque transmitter.

6. The hand-held ultrasonic bone drill of claim 5 wherein, The handheld ultrasonic bone drill also includes a bearing, which is fixedly installed inside the housing and sleeved on the outside of the adapter.

7. The hand-held ultrasonic bone drill of claim 1 wherein, The outer casing has multiple heat dissipation holes.

8. The hand-held ultrasonic bone drill of claim 1 wherein, The outer casing has at least one water inlet channel, which extends through the outer casing, and its port away from the drill bit is used to connect to an external water source; The drill bit has at least one cooling hole, which is provided through the drill bit along its length and is connected to the water inlet channel.

9. The hand-held ultrasonic bone drill of claim 1 or 8, wherein, The drill bit is equipped with a temperature sensor, which is located near the front end of the drill bit to detect the temperature of the front end of the drill bit. A display screen is provided on the outer wall of the housing, and the display screen is electrically connected to the temperature sensor.

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