An osteotome for training

Abstract

The present invention relates to a bone drill for training, which includes a bone drill body, a brushless motor, a reduction gearbox, a drill chuck, a drill bit, a pressure sensor, a distance sensor, an infrared temperature sensor, a data acquisition board, a Bluetooth transmitter, a circuit board, a handle and a backing plate; the probe of the pressure sensor contacts the backing plate and is used to detect the axial pressure transmitted by the drill bit; the infrared temperature sensor is installed on the upper left side of the handle, and the angle of its probe can be automatically adjusted, which is used to detect the temperature of the drill bit at the drilling point; the data acquisition board is installed at the rear end of the brushless motor and is used to collect the transmitted detection data. When the detected data value of the pressure sensor exceeds the set value of the axial pressure of the drill bit, it immediately feeds back to the circuit board and cuts off the power supply of the brushless motor; the Bluetooth transmitter is installed at the rear end of the data acquisition board and is used to transmit the detection data to the terminal. The functions described above of the present invention bring a better user experience to the operator and reduce the surgical risk.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a bone drill capable of measuring axial pressure and cutting point temperature. Background Art

[0002] Osteoporosis, bone fractures, fractures and other osteoarticular conditions are particularly prominent among the health problems of the elderly population. Therefore, the medical field urgently needs more adequate orthopedic surgeons and instrument resources. However, training a qualified orthopedic medical student requires overcoming many difficulties, such as a long training period, high training costs, etc. In the learning and training process of orthopedic medical students, the mastery of medical device operation is the most crucial. Only by deeply understanding the structural principles and usage methods of various medical devices and carrying out standardized and effective training can the proficient level be achieved. Among various orthopedic surgical medical devices, the role of the medical bone drill is more prominent. It plays a key role especially in surgeries such as fractures, drilling positioning holes, and minimally invasive repairs. Therefore, achieving proficient mastery of the operation skills of the medical bone drill through a large amount of training is an essential skill for orthopedic medical students.

[0003] Currently, most orthopedic medical students use ordinary medical bone drills for operation practice. For medical students lacking proficiency, directly using an ordinary medical bone drill for drilling, without knowing various cutting data, their operation standardization is poor, prone to errors or increasing safety hazards, and it is even more difficult to achieve the purpose of improving the operation accuracy of the bone drill. Summary of the Invention

[0004] Aiming at the limitations of the functions of current ordinary medical bone drills and the needs of orthopedic medical students for auxiliary medical devices, the purpose of the present invention is to provide a training bone drill to give orthopedic medical students better teaching and training conditions.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions.

[0006] A training bone drill includes a brushless motor, a reduction gearbox, a drill chuck, a drill bit, a data acquisition board, a Bluetooth transmitter, a handle, a distance sensor, an infrared temperature sensor, a switch button, a pressure sensor, and a circuit board.

[0007] Preferably, the reduction gearbox is installed between the brushless motor and the drill chuck. The reduction gearbox is connected to the brushless motor by gears and to the drill chuck by a key. The centers of the drill bit, the drill chuck, and the backing plate are all on the same axis, and all components are tightly connected, and there is no loss and interference in the transmission of the axial pressure received by the drill bit.

[0008] Preferably, a backing plate is fixed outside the thrust bearing seat ring of the reduction gearbox; the probe of the pressure sensor contacts the backing plate to detect the axial pressure transmitted by the drill bit; the pressure sensor is fixed on the pressure sensor fixing plate.

[0009] Preferably, the distance sensor is installed on the upper left side of the handle and is used to detect the distance between the distance sensor and the bone surface.

[0010] Preferably, the infrared temperature sensor and the distance sensor are jointly installed on the upper left side of the handle and are used to detect the temperature of the drill bit at the drilling point; a gear set is installed on the infrared temperature sensor and is used to adjust the angle of the probe of the infrared temperature sensor.

[0011] Preferably, the data acquisition board is installed at the rear end of the brushless motor and is used to collect the detection data transmitted by the pressure sensor, the distance sensor and the infrared temperature sensor; when the detected data value of the pressure sensor exceeds the set value of the axial pressure of the drill bit, it immediately feeds back to the circuit board; the circuit board controls the brushless motor and cuts off the power of the brushless motor to reduce the secondary injury to the bone tissue and the patient; when the detected data of the distance sensor changes, it immediately feeds back to the circuit board; the circuit board controls the rotation of the gear set and adjusts the angle of the probe of the infrared temperature sensor.

[0012] Preferably, the Bluetooth transmitter is installed at the rear end of the data acquisition board and is used to transmit the detection data to the terminal.

[0013] A bone drill for training in the present invention adopts a brushless motor, and the brushless motor has the characteristics of reducing the safety hazard caused by bone chips and other flying objects entering the motor during the operation of the motor and immediately braking when power is cut off to reduce the secondary injury to the bone tissue.

[0014] The present invention has the functions of real-time detecting the axial pressure and the cutting point temperature of the bone drill, and emergency stop protection. It brings a better use experience to the operator and reduces the surgical risk.

[0015] The present invention is suitable for use by orthopedic medical students during teaching and training. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the external structure of a bone drill for training in the present invention.

[0017] Figure 2 is a partial sectional view of a bone drill for training in the present invention.

[0018] Figure 3a and 3b is a schematic diagram of the process of a bone drill for training in the present invention performing a drilling operation.

[0019] The descriptions of the reference numerals in the above figures are as follows. 1 - Brushless motor; 2 - Reduction gearbox; 3 - Drill chuck; 4 - Drill bit; 5 - Data acquisition board; 6 - Bluetooth transmitter; 7 - Handle; 8 - Distance sensor; 9 - Infrared temperature sensor; 10 - Switch button; 11 - Pressure sensor; 12 - Pressure sensor fixing plate; 13 - Thrust bearing; 14 - Spacer; 15 - Circuit board; 16 - Gear set; 17 - Bone clamp platform; 18 - Bone; 19 - Drilling point. Specific embodiments

[0020] The present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings.

[0021] Figure 1 and Figure 2 are respectively the external structure schematic diagram and the partial sectional view of a bone drill for training of the present invention. As Figure 1 and Figure 2 shown, a bone drill for training of the present invention includes a brushless motor 1, a reduction gearbox 2, a drill chuck 3, a drill bit 4, a data acquisition board 5, a Bluetooth transmitter 6, a handle 7, a distance sensor 8, an infrared temperature sensor 9, a switch button 10, a pressure sensor 11, a circuit board 15 and a gear set 16.

[0022] Figure 3a and 3b are the process schematic diagrams of the drilling operation of a bone drill for training of the present invention. As Figure 3a and 3b shown, the operation object of a bone drill for training of the present invention is a bone 18; the bone 18 is fixed by a bone clamp platform 17; the contact position between the drill bit 4 and the surface of the bone 18 is called a drilling point 19.

[0023] The reduction gearbox 2 is installed between the brushless motor 1 and the drill chuck 3. The reduction gearbox 2 is connected to the brushless motor 1 by gears, and the reduction gearbox 2 is connected to the drill chuck 3 by a key. The centers of the drill bit 4, the drill chuck 3 and the spacer 14 are all on the same axis, and all components are tightly connected, and there is no loss and interference in the transmission of the axial pressure received by the drill bit 4.

[0024] A spacer 14 is fixed outside the seat ring of the thrust bearing 13 in the reduction gearbox 2; the probe of the pressure sensor 11 contacts the spacer 14 to detect the axial pressure transmitted by the drill bit 4; the pressure sensor 11 is fixed on the pressure sensor fixing plate 12.

[0025] The distance sensor 8 is installed on the upper left side of the handle 7 to detect the distance between the distance sensor 8 and the surface of the bone 18.

[0026] The infrared temperature sensor 9 and the distance sensor 8 are jointly installed on the upper left side of the handle 7 for detecting the temperature of the drill bit 4 at the drilling point; a gear set 16 is installed on the infrared temperature sensor 9 for adjusting the angle of the probe of the infrared temperature sensor 9.

[0027] The data acquisition board 5 is installed at the rear end of the brushless motor 1 for collecting the detection data transmitted by the pressure sensor 11, the distance sensor 8 and the infrared temperature sensor 9; when the detected data value of the pressure sensor 11 exceeds the axial pressure set value of the drill bit 4, it immediately feeds back to the circuit board 15; the circuit board 15 controls the brushless motor 1 and powers off the brushless motor 1 to reduce secondary damage to bone tissue and patients; when the detected data of the distance sensor 8 changes, it immediately feeds back to the circuit board 15; the circuit board 15 controls the rotation of the gear set 16 and adjusts the angle of the probe of the infrared temperature sensor 9.

[0028] The Bluetooth transmitter 6 is installed at the rear end of the data acquisition board 5 for transmitting the detection data to the terminal.

[0029] The following combines Figure 3a and 3b to elaborate on the working process of the present invention. A bone drill for training of the present invention is a handheld medical bone drill. The operator needs to hold the handle 7 and press the switch button 10 to make the drill bit 4 rotate. Before performing the drilling operation, the operator needs to use a measuring instrument for calibration to make the axis of the drill bit 4 perpendicular to the surface of the bone 18.

[0030] As the drilling depth of the drill bit 4 in the bone 18 increases, the distance between the distance sensor 8 and the surface of the bone 18 decreases, and the detected data of the distance sensor 8 changes. The data acquisition board 5 collects the changed data of the distance sensor 8 and immediately feeds back to the circuit board 15; the circuit board 15 controls the rotation of the gear set 16 and adjusts the angle of the probe of the infrared temperature sensor 9 to enable the infrared temperature sensor 9 to detect the temperature of the drilling point 19 in real time.

[0031] If the drill bit 4 is blocked during the drilling process or the operator makes a mistake resulting in the detected data value of the pressure sensor 11 exceeding the axial pressure set value of the drill bit 4, the data acquisition board 5 immediately feeds back to the circuit board 15 and powers off the brushless motor 1 to reduce the harm to the bone and the operator.

[0032] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A bone drill for training, characterized in that: It includes a brushless motor, a reduction gearbox, a drill chuck, a drill bit, a pressure sensor, a distance sensor, an infrared temperature sensor, a data acquisition board, a Bluetooth transmitter, a circuit board, a handle and a switch button; The infrared temperature sensor and the distance sensor are jointly installed on the upper left side of the handle and are used to detect the temperature of the drill bit at the drilling point; a gear set is installed on the infrared temperature sensor and is used to adjust the angle of the probe of the infrared temperature sensor; The data acquisition board is installed at the rear end of the brushless motor and is used to collect the detection data transmitted by the pressure sensor, the distance sensor and the infrared temperature sensor; when the detection data value of the pressure sensor exceeds the pressure set value of the drill bit, it immediately feeds back to the circuit board and powers off the brushless motor to reduce secondary damage to bone tissue and patients; when the detection data of the distance sensor changes, it immediately feeds back to the circuit board; the circuit board controls the rotation of the gear set and adjusts the angle of the probe of the infrared temperature sensor.

2. The bone drill for training according to claim 1, characterized in that: The reduction gearbox is installed between the brushless motor and the drill chuck.

3. The bone drill for training according to claim 1, characterized in that: A backing plate is fixed outside the thrust bearing seat ring of the reduction gearbox; the probe of the pressure sensor contacts the backing plate and is used to detect the axial pressure transmitted by the drill bit.

4. A bone drill for training according to claim 1, characterized in that: The distance sensor is installed on the upper left side of the handle and is used to detect the distance between the distance sensor and the bone surface.

5. The bone drill for training according to claim 1, characterized in that: The Bluetooth transmitter is installed at the rear end of the data acquisition board and is used to transmit the detection data to the terminal.

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