CN221060774U

CN221060774U - Bone drill

Info

Publication number: CN221060774U
Application number: CN202322670755.XU
Authority: CN
Inventors: 梁成; 魏巍; 姬涛
Original assignee: Beijing Laishibo Medical Technology Co ltd
Current assignee: Beijing Laishibo Medical Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-06-04
Anticipated expiration: 2033-09-28

Abstract

The application relates to a bone drill, which comprises a machine body, a driving assembly, a drill bit, a warning piece and a power supply assembly for providing electric energy for the driving assembly; the driving assembly and the power supply assembly are arranged on the machine body, the driving assembly comprises power equipment, a torque sensor and a control module, an output shaft of the torque sensor is respectively connected with an output shaft of the power equipment and a drill bit, and the output shaft of the power equipment, the output shaft of the torque sensor and the drill bit are coaxially arranged; the warning part is provided with a sound generating part and/or a color developing part; the power equipment, the torque sensor and the warning piece are all electrically connected with the control module. The application has the effect of effectively avoiding potential damage to human soft tissues in the operation process.

Description

Bone drill

Technical Field

The application relates to the field of medical equipment, in particular to a bone drill.

Background

Bone drilling is currently a common surgical procedure in clinical surgery, ranging from neurosurgical craniotomy biopsy, to spinal surgical spine partial reconstruction, to joint surgical joint replacement prosthesis installation, requiring a drilling procedure in the surgical field using a bone drill. In the traditional bone drill design, the motor rotates at a high speed to output, the speed is reduced and the torque is increased through the reduction gearbox, the drill clamp and the drill bit are driven to complete the rotary drilling and cutting function, and the operation of the bone drill instrument in clinical operation completely depends on the experience and hand feeling of doctors to identify the drilling and cutting depth and the drilling position. The inside and below of human skeleton mainly comprises soft tissues such as bone marrow, nerves and blood vessels, and surgical instruments and the soft tissues are prevented from being contacted as much as possible during bone surgery, so that irreversible damage to the soft tissues is avoided, but the effect can be achieved only by applying certain pressure to both hands of a doctor during drilling, and the force applied by the doctor can not be quickly withdrawn after the bone is drilled through, so that the associated damage to the soft tissues of the human body can not be completely avoided during the surgery.

Aiming at the related technology, the inventor considers that the defects of high operation difficulty, easy damage to human soft tissues and high operation level for medical staff exist.

Disclosure of utility model

In order to solve the technical problems, the application provides the bone drill which can effectively avoid potential damage to human soft tissues in the operation process.

The application provides a bone drill which adopts the following technical scheme:

A bone drill comprises a machine body, a driving assembly, a drill bit, a warning piece and a power supply assembly for providing electric energy for the driving assembly; the driving assembly and the power supply assembly are arranged on the machine body, the driving assembly comprises power equipment, a torque sensor and a control module, an output shaft of the torque sensor is respectively connected with an output shaft of the power equipment and a drill bit, and the output shaft of the power equipment, the output shaft of the torque sensor and the drill bit are coaxially arranged; the warning part is provided with a sound generating part and/or a color developing part; the power equipment, the torque sensor and the warning piece are all electrically connected with the control module.

Preferably, the power equipment comprises a driving motor and a speed reduction assembly connected with an output shaft of the driving motor, and an output shaft of the torsion sensor is connected with an output shaft of the speed reduction assembly.

Preferably, the power supply assembly includes a battery body and a switch for controlling the start and stop of the power device, the switch and the power device being connected in series between the positive electrode and the negative electrode of the battery body.

Preferably, the power supply assembly further comprises a power generation part for charging the battery body, wherein the power generation part is arranged on an output shaft of the power equipment, or an input shaft of the power generation part is in force transmission connection with the output shaft of the power equipment.

Preferably, the bone drill further comprises a drill clamp for clamping the drill bit, and the drill clamp is arranged at the output end of the power equipment.

Preferably, the machine body comprises a mounting part and a holding part which are vertically connected, and the holding part is connected with the end part or the middle part of the mounting part; the drill bit is arranged perpendicular to the holding part.

Preferably, the machine body is provided with an installation cavity, and the driving assembly, the power assembly and the warning piece are all arranged in the installation cavity.

Preferably, the mounting part and the holding part are connected in a T shape, the mounting part and the holding part are both provided with cavities, and the cavities of the mounting part and the holding part are communicated and are surrounded into a T-shaped mounting cavity.

Preferably, the power supply assembly is provided with a switch and a deflector rod for controlling the power equipment to rotate forwards or backwards; the power supply component and the warning piece are arranged in the inner cavity of the holding part; the side wall of the holding part is provided with an operation window exposing the switch and the deflector rod, or the switch and the deflector rod extend out of the mounting cavity.

Preferably, the warning member is a buzzer.

Through analysis, the bone drill provided by the scheme comprises a machine body, a driving assembly, a drill bit, a warning piece and a power supply assembly for providing electric energy for the driving assembly. The driving component and the power supply component are arranged on the machine body. The driving assembly comprises a power equipment torque sensor and a control module, an output shaft of the torque sensor is connected with an output shaft of the power equipment and the drill bit respectively, the output shaft of the power equipment, the output shaft of the torque sensor and the drill bit are coaxially arranged, resistance is met in the process that the drill bit drills bones, the resistance is transmitted to the other end of the torque sensor through the drill clamp, and therefore the torque sensor can detect real-time torque in the drilling process. When the drill bit penetrates through the bone, the resistance can be suddenly reduced, and the torque can be suddenly reduced. The warning part is provided with a sound generating part and/or a color developing part; the power equipment, the torque sensor and the warning piece are all electrically connected with the control module. The torque sensor transmits real-time torque data to the control module, when the drill bit drills through bones, the torque suddenly drops, the control module controls the sounding part and/or the color development part of the warning part to work according to set identification threshold parameters, at least one of sound information and visual information prompts an operator that bone parts are perforated, the operator stops the continuous deep movement of the bone drill in time, meanwhile, the information of the torque sensor is transmitted to the control module, and the control module synchronously controls the driving assembly to stop rotating when the warning part works.

In summary, the bone drill provided by the application can identify the torque born by the contact of the drill bit part and the bone in the drilling process in real time, and can automatically judge the drilling position on line by identifying the change of the torque. In one aspect, closed loop feedback is achieved by the control module and braking of the power plant is automatically controlled by monitoring data from the torque sensor. On the other hand, the preset working torque value of the warning piece can be reasonably set, so that sound information or visual information can be output before the data mutation of the torque sensor is stable, a certain response time is reserved for an operator, the situation that the operator continuously presses downwards to cause damage to human soft tissues while braking of power equipment and inertial rotation of a drill bit are effectively avoided, and the effect and effect of protecting a patient can be better achieved.

Drawings

Fig. 1 is a schematic structural view of a bone drill according to an embodiment of the present utility model.

Reference numerals illustrate: the drilling machine comprises a machine body, a 2-drill bit, a 3-warning piece, a 4-torque sensor, a 5-driving motor, a 6-speed reduction assembly, a 7-battery body, an 8-switch, a 9-drill clamp, a 10-deflector rod, an 11-mounting part and a 12-holding part.

Detailed Description

The present application will be described in further detail with reference to fig. 1.

The embodiment of the application discloses a bone drill, referring to fig. 1, which comprises a machine body 1, a driving assembly, a drill bit 2, a warning piece 3 and a power supply assembly for providing electric energy for the driving assembly. The driving component and the power supply component are arranged on the machine body 1. The drive assembly includes power equipment, torque sensor 4 and control module, and torque sensor 4's output shaft is connected with power equipment's output shaft and drill bit 2 respectively, and power equipment's output shaft, torque sensor 4's output shaft and drill bit 2 coaxial line set up, and drill bit 2 drilling skeleton in-process can meet the resistance, and this resistance is transmitted the other end of torque sensor 4 through drill jig 9, and torque sensor 4 can detect the real-time moment of torsion of drilling in-process like this. When the drill bit 2 penetrates the bone, the resistance will suddenly decrease, and the torque will suddenly decrease. The warning piece 3 is provided with a sound generating part and/or a color developing part; the power equipment, the torque sensor 4 and the warning piece 3 are all electrically connected with the control module. The torque sensor 4 transmits real-time torque data to the control module, when the drill bit 2 drills through bones, the torque suddenly drops, the control module controls the sounding part and/or the color development part of the warning piece 3 to work according to set identification threshold parameters, at least one of sound information and visual information prompts an operator that bone parts are penetrated, the operator stops the continuous deep action of the bone drill in time, meanwhile, the information of the torque sensor 4 is transmitted to the control module, and the control module synchronously controls the driving assembly to stop rotating while the warning piece 3 works.

In summary, the bone drill provided by the application can identify the torque born by the contact of the drill bit 2 and the bone in the drilling process in real time, and can automatically judge the drilling position on line by identifying the change of the torque. On the one hand, by monitoring the data of the torque sensor 4, closed-loop feedback is achieved by the control module and braking of the power plant is automatically controlled. On the other hand, the preset working torque value of the warning piece 3 can be reasonably set, so that sound information or visual information is output before the data of the torque sensor 4 suddenly changes and is stabilized, a certain response time is reserved for an operator, the situation that the operator continuously presses downwards to cause damage to human soft tissues while braking of power equipment and inertial rotation of the drill bit 2 are effectively avoided, and the effect and effect of protecting a patient can be better achieved.

In addition, compared with the prior art, the bone drill provided by the embodiment has the advantages that the external wiring structure is omitted due to the fact that the bone drill is provided with the power supply assembly, and the bone drill can be used in any place and any scene. In this embodiment, preferably, the power supply assembly includes a battery body 7 and a switch 8 for controlling the start and stop of the power device, the switch 8 and the power device are connected in series between the positive electrode and the negative electrode of the battery body 7, and the control module controls the brake of the power device by controlling the switch 8 to be turned off. The specific settings such as the type selection and the installation of the battery are not limited in this embodiment, and any one of the prior art may be selected as the battery suitable for this scheme.

In some embodiments, the battery is a single use non-rechargeable battery that is replaced after the battery is depleted. In some embodiments, the battery may also be a rechargeable battery that is charged by connecting to a power source through an external connection. As a preferred embodiment, the power supply assembly further includes a power generating part for charging the battery body 7, where the power generating part is disposed on the output shaft of the power device, or the input shaft of the power generating part is in force transmission connection with the output shaft of the power device, that is, the stator and the rotor for generating power may be sleeved on the output shaft of the power device, or may further be provided with a shaft in force transmission connection with the output shaft of the power device, for example, through gear connection and the like.

As shown in the figure, in this embodiment, the power device includes a driving motor 5 and a speed reducing assembly 6 connected to an output shaft of the driving motor 5, an output shaft of the torque sensor is connected to an output shaft of the speed reducing assembly 6, the speed reducing assembly 6 plays a role in matching the rotation speed and transmitting the torque, and the rotation of the driving motor 5 is reduced by the speed reducing assembly 6 and then is connected to one end of the torque sensor 4. The reduction assembly 6 may be any one of the possibilities of the related art, such as a gear reducer, a worm reducer, and a planetary gear reducer; such as single-stage reducers and multi-stage reducers.

In order to match the drilling requirements of different operations without using scenes, the bone drill preferably further comprises a drill clamp 9 for clamping the drill bit 2, the drill clamp 9 is arranged at the output end of the power equipment, and the drill clamp 9 can clamp drill bits 2 with different sizes and different models.

The warning member 3 is not particularly limited in this embodiment, and in some embodiments, the warning member 3 may be an indicator light. In this embodiment, preferably, the warning member 3 is a buzzer. In some embodiments, the buzzer may be configured to perform one-stage or two-stage frequency conversion, where the two-stage frequency conversion is adopted to enable an operator to know when the torque falls to a first interval, and when the torque falls to a second interval which is closer to 0 than the first interval, the buzzer emits sound with a faster frequency, so that the operator can determine more clearly.

As shown in the drawing, in this embodiment, the machine body 1 includes a mounting portion 11 and a holding portion 12 which are vertically connected, and the holding portion 12 is connected to an end portion or a middle portion of the mounting portion 11, that is, the machine body 1 is T-shaped or L-shaped as a whole. The drill bit 2 is arranged perpendicular to the holding part 12, so that an operator can hold and drill conveniently.

In order to guarantee safe in utilization, in this embodiment, organism 1 is equipped with the installation cavity, and drive assembly, power supply unit and warning piece 3 all locate the installation intracavity, and make each part more concentrated compactly, improve the whole practicality of bone drill.

As a preferred embodiment, the mounting portion 11 and the holding portion 12 are connected in a T-shape, the mounting portion 11 and the holding portion 12 are both provided with a cavity, and the cavity of the mounting portion 11 and the cavity of the holding portion 12 are communicated and surrounded to form a T-shaped mounting cavity. In this embodiment, at least drive assembly and drill clamp 9 locate in the cavity of installation department 11, and drill clamp 9 stretches out outside installation department 11, and then the clamping of being convenient for drill bit 2 is dismantled, avoids high-speed pivoted structure to expose outside organism 1 simultaneously, and then guarantees the safety of operation.

In the embodiment, the power supply assembly is provided with a switch 8 and a deflector rod 10 for controlling the power equipment to rotate forwards or backwards; the power supply component and the warning piece 3 are arranged in the inner cavity of the holding part 12; the side wall of the holding part 12 is provided with an operation window exposing the switch 8 and the deflector rod 10, or the switch 8 and the deflector rod 10 extend out of the installation cavity, namely, out of the holding part 12. After the operator releases the switch 8, the buzzer is automatically turned off, the driving motor 5 is restored to a standby state, and after the bone drill operator dials the deflector rod 10 to reverse, the operator presses the switch 8, and the driving motor 5 can drive the drill bit 2 to continue working.

The implementation principle of the bone drill in the embodiment of the application is as follows: the battery body 7 provides a power source for the driving motor 5 by closing the switch 8, and brakes the driving motor 5 by opening the switch 8. In the bone drill operating state, the torque rotation of the driving motor 5 is transmitted to the torque sensor 4 after being decelerated by the decelerator, and then transmitted to the external drill 2. The drill bit 2 encounters resistance during drilling of the bone, which is transmitted via the drill clamp 9 to the other end of the torque sensor 4, so that the torque sensor 4 detects the real-time torque during drilling. When the drill bit 2 breaks through bones, the resistance can suddenly drop and become small, the torque can suddenly drop, the torque sensor 4 controls the buzzer to work according to the set identification threshold parameters, so that an operator is prompted that bone parts are broken through, and meanwhile, the torque sensor 4 synchronously controls the switch 8 to automatically disconnect and stop the rotation of the driving motor 5, so that the purpose of protecting a patient is achieved.

When the operator releases the switch 8, the buzzer is automatically turned off, the driving motor 5 is restored to a standby state, the switch 8 is provided with a deflector rod 10 for forward and reverse locking, after the bone drill operator selects the deflector rod 10, the operator presses the switch 8, and the driving motor 5 drives the drill bit 2 to continue working.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The bone drill is characterized by comprising a machine body (1), a driving assembly, a drill bit (2), a warning piece (3) and a power supply assembly for providing electric energy for the driving assembly; the driving assembly and the power supply assembly are arranged on the machine body (1), the driving assembly comprises power equipment, a torque sensor (4) and a control module, an output shaft of the torque sensor (4) is respectively connected with an output shaft of the power equipment and the drill bit (2), and the output shaft of the power equipment, the output shaft of the torque sensor (4) and the drill bit (2) are coaxially arranged; the warning piece (3) is provided with a sound generating part and/or a color developing part; the power equipment, the torque sensor (4) and the warning piece (3) are all electrically connected with the control module.

2. A bone drill according to claim 1, characterized in that the power device comprises a drive motor (5) and a reduction assembly (6) connected to the output shaft of the drive motor (5), the output shaft of the torsion sensor being connected to the output shaft of the reduction assembly (6).

3. A bone drill according to claim 1, characterized in that the power supply assembly comprises a battery body (7) and a switch (8) for controlling the start and stop of the power device, the switch (8) and the power device being connected in series between the positive and negative poles of the battery body (7).

4. A bone drill according to claim 3, characterized in that the power supply assembly further comprises a power generation part for charging the battery body (7), which power generation part is provided on the output shaft of the power device or the input shaft of the power generation part is in force-transmitting connection with the output shaft of the power device.

5. A bone drill according to any one of claims 1-4, characterized in that the bone drill further comprises a drill clamp (9) for clamping the drill bit (2), the drill clamp (9) being provided at the output of the power device.

6. A bone drill according to any one of claims 1-4, characterized in that the body (1) comprises a vertically connected mounting portion (11) and a grip portion (12), the grip portion (12) being connected to an end or middle portion of the mounting portion (11); the drill (2) is arranged perpendicular to the holding part (12).

7. Bone drill according to claim 6, characterized in that the body (1) is provided with a mounting cavity, and the drive assembly, the power supply assembly and the warning element (3) are all arranged in the mounting cavity.

8. The bone drill according to claim 7, characterized in that the mounting portion (11) and the holding portion (12) are connected in a T-shape, the mounting portion (11) and the holding portion (12) are both provided with cavities, and the cavities of the mounting portion (11) and the holding portion (12) are communicated and surrounded to form the T-shaped mounting cavity.

9. A bone drill according to claim 8, characterized in that the power supply assembly is provided with a switch (8) and a lever (10) for controlling the forward or reverse rotation of the power device; the power supply component and the warning piece (3) are arranged in the inner cavity of the holding part (12);

An operation window exposing the switch (8) and the deflector rod (10) is arranged on the side wall of the holding part (12), or the switch (8) and the deflector rod (10) extend out of the installation cavity.

10. A bone drill according to any one of claims 1-4, 7-9, characterized in that the warning element (3) is a buzzer.