阅读说明：本技术 牙种植备孔防骨板穿透设备及其方法 (Dental implant preparation hole bone plate penetration preventing device and method thereof ) 是由 张丹 赵君雄 于 2020-09-09 设计创作，主要内容包括：牙种植备孔防骨板穿透设备,包括：手机组件、保险组件,保险组件设置于手机组件内,能够连通或断开手机的动力传输；本发明所述的牙种植备孔防骨板穿透设备巧妙采用拨片和电磁铁互相配合的保险组件,能够灵活设置钻头扭矩上限,当钻头扭矩达到设置的上限时停止钻头的旋转,并能同时发出声、光信号提醒,简单方便的预防了牙种植备孔过程中骨板被先锋钻钻头穿透的情况发生,帮助种植医生控制了唇颊侧或舌腭侧骨板侧穿,上颌窦穿透,下颌神经管穿孔等多种手术并发症,给患者带来了更好的安全体验。(Dental implant preparation holes bone plate penetration prevention apparatus comprising: the safety component is arranged in the mobile phone component and can be used for connecting or disconnecting the power transmission of the mobile phone; the dental implant preparation hole bone plate penetration preventing device skillfully adopts the safety component with the mutual matching of the poking piece and the electromagnet, can flexibly set the upper limit of the torque of the drill bit, stops the rotation of the drill bit when the torque of the drill bit reaches the set upper limit, and can simultaneously give out sound and light signal prompts, thereby simply and conveniently preventing the bone plate from being penetrated by the pioneer drill bit in the dental implant preparation hole process, helping an implanting doctor to control various operation complications such as the bone plate penetration on the labial side or the lingual side, the maxillary sinus penetration, the mandibular nerve canal penetration and the like, and bringing better safety experience to patients.)

1. Dental implant equipment hole prevents bone plate and pierces through equipment, its characterized in that includes: the safety component is arranged in the mobile phone component and can be used for connecting or disconnecting the power transmission of the mobile phone; the mobile phone assembly comprises: cell-phone handle, aircraft nose, drill bit, transmission shaft, cell-phone handle front end set up the aircraft nose, the drill bit is connected to the aircraft nose, sets up the transmission shaft in the cell-phone handle, motor is connected to transmission shaft one end, core in the aircraft nose is connected to the other end, the aircraft nose include: aircraft nose shell, core the core be located the aircraft nose shell, the core include: the drill bit is connected with the shaft core, the bearing is arranged between the shaft core and the shell of the machine head, and the transmission gear is arranged on the shaft core; the insurance subassembly include: outer ring gear, plectrum, electro-magnet, outer ring gear set up outside drive gear, the outer ring gear outer lane sets up the tooth, the tooth and the epaxial tooth meshing of transmission of outer ring gear outer lane, the outer ring gear inner circle sets up the plectrum, plectrum one end is connected on the outer ring gear inner circle, the other end stretches out forward and takes on the drive gear tooth, sets up the electro-magnet in the outer ring gear, the plectrum material can be attracted by the electro-magnet, the electro-magnet is fixed in the outer ring gear, the plectrum is.

2. The dental implant preparation hole bone plate penetration prevention apparatus of claim 1, wherein said safety assembly further comprises: the push switch is connected with the buzzer and the LED lamp, the push switch is in a normally open state, the circuit of the push switch is pressed to disconnect the buzzer, the buzzer does not sound, the LED lamp does not light, otherwise, the circuit is connected with the buzzer, the buzzer sounds, the LED lamp lights, the push switch is arranged in the outer gear ring, and when the electromagnet attracts the shifting piece, the push switch is pressed by the shifting piece.

3. The dental implant preparation hole bone plate penetration prevention apparatus of claim 1, wherein said safety assembly further comprises: the spring is arranged at the joint of the plectrum and the outer gear ring, and the plectrum is kept in a forward extending state by the spring.

4. The dental implant preparation hole bone plate penetration preventing device as claimed in claim 1, wherein an ammeter and a rheostat are connected in the electromagnet circuit, the resistance value of the rheostat can be adjusted to adjust the current passing through the electromagnet, the current value is displayed through the ammeter, and the change of the current causes the change of the attraction force of the electromagnet.

5. The dental implant hole bone plate penetration preventing device is characterized in that the using process comprises the following steps:

step 1, conventionally turning over the valve in the dental implantation area,

step 2, performing pilot drilling on the nose, testing the nose available state threshold of the cortical bone of the jaw bone of the patient at the implantation point, recording the ammeter value when the threshold is lower,

step 3, adjusting the rheostat to enable the value of the ammeter to be larger than the threshold value recorded in the step 2, drilling cortex lycii with a pioneer drill,

step 4, stopping drilling after the pioneer drills into cancellous bone, adjusting the rheostat to enable the numerical value of the ammeter to be smaller than the threshold value recorded in the step 2,

and step 5, restarting drilling until the pioneer drill finishes the preset drilling depth,

step 6, if the machine head is changed into an unavailable state in the drilling process in the step 5, the drilling is stopped, whether the drill bit drills to the cortex of the bone is detected so as to avoid causing damage,

and 7, taking down the pilot drill from the handpiece, adjusting the rheostat to enable the numerical value of the ammeter to be larger than the threshold value recorded in the step 2, and continuing the operation by devices such as the upper reamer and the like until the preparation of the hole is completed.

6. The dental implant preparation hole bone plate penetration preventing apparatus of claim 1, wherein said handpiece further comprises: the machine core cover is arranged between the machine head shell and the machine core, the machine core cover is in threaded connection with the machine head shell, and the machine core is fixed in the machine head shell by the machine core cover.

7. The dental implant preparation hole bone plate penetration prevention apparatus of claim 3, wherein the spring is a torsion spring.

8. The dental implant preparation hole bone plate penetration preventing device as claimed in claim 1, wherein the outer gear ring is provided with 2 groups of the shifting sheets and the electromagnet, and the 2 groups of the shifting sheets and the electromagnet are arranged at an inner ring of the outer gear ring in a 180-degree orientation.

9. The dental implant preparation hole bone plate penetration prevention apparatus of claim 5, wherein the ammeter value of the step 4 pilot drill in cancellous bone drilling is set to be between 30-60% of the threshold value recorded in step 2.

10. The dental implant hole penetration prevention apparatus of claim 5, wherein said step 7 is performed using another conventional dental implant handpiece.

Technical Field

The invention belongs to the field of dental implants, and relates to equipment for preventing a pilot drill from penetrating a bone plate during dental implant preparation holes.

Background

Dental implantation has become one of the preferred options for dentists and edentulous patients to repair a missing dentition. The implant can obtain the restoration effect which is very similar to the function, structure and aesthetic effect of natural teeth by drilling holes in the jaw bone, implanting an implant made of artificial materials (such as metal, ceramic and the like) into the holes to obtain the retention support with firm bone tissues and connecting and supporting the dental restoration at the upper part by a special device and a special mode. However, during the process of drilling the jaw bone by using the pioneer drill, the side of the labial or lingual or palatal bone plate may be penetrated, the maxillary sinus floor bone plate or the mandibular nerve tube may be penetrated, which may cause the exposure of the implant to secondary infection, increase the probability of implant implantation failure and numbness of the lower lip, so the surgeon needs to know the information of the jaw bone (including the height and width of the available bone mass and the positions of the maxillary sinus and mandibular nerve tube) in the implantation area accurately, and needs to select the implant with the proper length, i.e., the bone mass is used without penetrating the maxillary sinus floor or the mandibular nerve tube.

At present, information used by doctors mainly depends on CT or X-ray curved surface tomography, and three-dimensional jaw information is simulated by a computer system through the information, the length, the diameter, the implantation depth, the direction and the angle of an implant can be selected in the computer system, and important structures such as maxillary sinus floor, mandibular nerve tube and the like are avoided during operation, so that the operation safety is ensured. However, due to the deformation error, amplification distortion or artifact influence of the imaging system, the above methods have errors with certain probability, and various operation complications such as maxillary sinus penetration, mandibular nerve canal perforation and the like often occur in clinic, which brings pain to patients. Therefore, there is a great need for an implanter and method for preventing the pilot drill from penetrating the bone plate during implantation of a prepared hole.

Disclosure of Invention

The purpose of the invention is: an apparatus and method for preventing the penetration of a pilot drill through a bone plate during the implantation of a prepared hole is provided.

The technical scheme adopted by the invention is as follows: dental implant preparation holes bone plate penetration prevention apparatus comprising: the safety component is arranged in the mobile phone component and can be used for connecting or disconnecting the power transmission of the mobile phone; the mobile phone assembly comprises: cell-phone handle, aircraft nose, drill bit, transmission shaft, cell-phone handle front end set up the aircraft nose, the drill bit is connected to the aircraft nose, sets up the transmission shaft in the cell-phone handle, motor is connected to transmission shaft one end, core in the aircraft nose is connected to the other end, the aircraft nose include: aircraft nose shell, core the core be located the aircraft nose shell, the core include: the drill bit is connected with the shaft core, the bearing is arranged between the shaft core and the shell of the machine head, and the transmission gear is arranged on the shaft core; the insurance subassembly include: the outer gear ring is arranged outside the transmission gear, the outer ring of the outer gear ring is provided with teeth, the teeth of the outer ring of the outer gear ring are meshed with the teeth on the transmission shaft, the inner ring of the outer gear ring is provided with a shifting piece, one end of the shifting piece is connected to the inner ring of the outer gear ring, the other end of the shifting piece extends forwards and is lapped on the teeth of the transmission gear, the electromagnet is arranged in the outer gear ring, the material of the shifting piece can be attracted by the electromagnet, the electromagnet is fixed in the outer gear ring, and the shifting;

the safety assembly further comprises: the push switch is connected with the buzzer and the LED lamp, the push switch is in a normally open state, the circuit of the push switch is pressed to turn off the buzzer and turn off the LED lamp, otherwise, the circuit is connected with the buzzer and turn off the LED lamp, the push switch is arranged in the outer gear ring, and when the electromagnet sucks the shifting piece, the push switch is pressed by the shifting piece;

the safety assembly further comprises: the spring is arranged at the joint of the plectrum and the outer gear ring and keeps the plectrum in a forward extending state;

the electromagnet circuit is connected with an ammeter and a rheostat, the resistance value of the rheostat is adjusted to adjust the current passing through the electromagnet, the current value is displayed by the ammeter, and the change of the current causes the change of the attraction force of the electromagnet;

the electromagnet absorbs the shifting piece, the outer gear ring rotates to drive the shaft core to rotate, the buzzer does not sound, the LED lamp does not light, and the machine head is in a usable state. The electromagnet cannot suck the shifting piece, the outer gear ring cannot drive the shaft core to rotate when rotating, the buzzer sounds, the LED lamp is on, and the machine head is in an unavailable state; the cortical bone is very compact and hard, and the cancellous bone is relatively loose and much, the elastic modulus of the cortical bone is about 2 orders of magnitude higher than that of the cancellous bone generally, when the pioneer drill comes from the relatively loose cancellous bone to the compact and hard cortical bone, the resistance borne by the front end of the pioneer drill bit can be increased, and the sharp increase of the torque of the pioneer drill bit is the basis for realizing the purpose of the invention;

method for testing threshold value of available state of nose of cortical bone: setting the machine head to be in a usable state, and if the machine head is in a non-usable state, stopping the motor, adjusting a large current to continuously start the motor to trial drill until the machine head is in the usable state all the time during trial drilling, wherein the current value is a threshold value;

the use process of the dental implant hole bone plate penetration preventing device comprises the following steps:

step 1, conventionally turning over the valve in the dental implantation area,

step 2, performing pilot drilling on the nose, testing the nose available state threshold of the cortical bone of the jaw bone of the patient at the implantation point, recording the ammeter value when the threshold is lower,

step 3, adjusting the rheostat to enable the value of the ammeter to be larger than the threshold value recorded in the step 2, drilling cortex lycii with a pioneer drill,

step 4, stopping drilling after the pioneer drills into cancellous bone, adjusting the rheostat to enable the numerical value of the ammeter to be smaller than the threshold value recorded in the step 2,

and step 5, restarting drilling until the pioneer drill finishes the preset drilling depth,

step 6, if the machine head is changed into an unavailable state in the drilling process in the step 5, the drilling is stopped, whether the drill bit drills to the cortex of the bone is detected so as to avoid causing damage,

step 7, the nose takes down the pilot drill, the rheostat is adjusted to enable the numerical value of the ammeter to be larger than the threshold value recorded in the step 2, and devices such as the reamer and the like are used for continuing the operation until the hole preparation is completed;

preferably, the handpiece further comprises: the machine core cover is arranged between the machine head shell and the machine core, the machine core cover is connected with the machine head shell through threads, and the machine core is fixed in the machine head shell through the machine core cover;

preferably, the movement is provided with an upper bearing and a lower bearing;

preferably, the spring is a torsion spring;

preferably, the outer gear ring is provided with 2 groups of shifting pieces and electromagnets, and the 2 groups of shifting pieces and the electromagnets are arranged in the 180-degree direction in the inner ring of the outer gear ring;

preferably, the ammeter is a digital display type ammeter;

preferably, the rheostat is a knob type rheostat;

preferably, the electromagnet, the ammeter, the rheostat and the power supply form a series circuit;

preferably, the press switch, the buzzer, the LED lamp and the power supply form a series circuit;

preferably, the buzzer, the LED lamp, the ammeter and the rheostat are arranged on the handle of the mobile phone;

preferably, the buzzer, the LED lamp, the ammeter and the rheostat are arranged on the planter host;

preferably, the ammeter value of the pioneer drill in the step 4 is set to be 30-60% of the threshold value recorded in the step 2 when drilling spongy bone;

preferably, the step 7 is performed by using another common dental implant handpiece.

The equipment that dental implantation operation used is dental implant machine to electricity is power, generally includes: the planting machine is connected with the planting motor, the planting motor is connected with the planting mobile phone, the front end of the planting mobile phone is provided with a machine head, the machine head is connected with a ball drill, a pioneer drill, a reamer drill, a tapping drill and other equipment, the motor is controlled by the pedal switch, and water sprayed by the water pump is used for cooling the surgical site. The bone plate penetration preventing device for the dental implant preparation hole is powered by a motor, the power drives an outer gear ring to rotate through a transmission shaft, an electromagnet attracts a shifting piece, the outer gear ring pushes a transmission gear through the shifting piece to enable a shaft core to rotate, and a drill connected to the shaft core rotates along with the shaft core. The connection part of the shifting piece and the outer gear ring can rotate, when the electromagnet cannot suck the shifting piece, the shifting piece can be pushed away by the transmission gear, at the moment, the shifting piece cannot push the transmission gear to enable the shaft core to rotate, and the drill bit also stops rotating; the electromagnet attracts the shifting piece, the outer gear ring pushes the transmission gear and the shaft core to rotate, the attraction force of the electromagnet and the torque which can be borne by the drill bit form an incidence relation, the attraction force of the electromagnet is large, the torque which can be borne by the drill bit is also large, and the judgment can be carried out through the numerical value of the current. The suction force of the electromagnet is smaller than the torque of cortical bone by adjusting the rheostat, the torque of the pioneer drill bit for drilling in cancellous bone is smaller, the electromagnet can stably suck the plectrum, when the head of the pioneer drill bit is in contact with cortical bone at the other end of the bone plate or the cortex of the mandibular nerve canal, the torque of the drill bit is rapidly increased to be larger than the suction force of the electromagnet, so that the electromagnet cannot suck the plectrum, the plectrum is pushed away by the transmission gear, the outer gear ring rotates to no longer drive the transmission gear and the shaft core to rotate, the drill bit stops rotating, the phenomena of bone plate penetration or mandibular nerve canal penetration cannot occur, and the occurrence. The press switch is arranged in the machine head and is connected with the buzzer and the LED lamp, the installation position of the press switch is ingenious, when the electromagnet sucks the shifting piece, the press switch is pressed by the shifting piece and is in a non-connection state, and when the electromagnet cannot suck the shifting piece, the press switch is not pressed by the shifting piece and is recovered to the connection state, so that the buzzer and the LED lamp are powered on to emit acousto-optic reminding to remind that the shifting piece cannot be sucked by the electromagnet. The spring is arranged on the shifting piece, so that the shifting piece can automatically rebound to the original position after being bounced by the transmission gear, and the shifting piece can be reset quickly. The electromagnet, the rheostat and the ammeter are connected in series, the current of the electromagnet can be adjusted by adjusting the resistance, the magnetic force of the electromagnet with large current is large, the magnetic force of the electromagnet with small current is small, the current value can be visually observed and recorded through the ammeter, the recording and setting processes are convenient, and the digital display type ammeter is selected and is suitable for recording the current value. The device of the present invention is suitable for a process using a pilot drill, so it is preferable that the dental implant hole bone plate penetration preventing device is used in steps 1 to 6, and step 7 is performed using another common dental implant handpiece.

The dental implant preparation hole bone plate penetration preventing device skillfully adopts the safety component with the mutual matching of the poking piece and the electromagnet, can flexibly set the upper limit of the torque of the drill bit, stops the rotation of the drill bit when the torque of the drill bit reaches the set upper limit, and can simultaneously give out sound and light signal prompts, thereby simply and conveniently preventing the bone plate from being penetrated by the pioneer drill bit in the dental implant preparation hole process, helping an implanting doctor to control various operation complications such as the bone plate penetration on the labial side or the lingual side, the maxillary sinus penetration, the mandibular nerve canal penetration and the like, and bringing better safety experience to patients.

Description of the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of a handpiece of the present invention;

FIG. 4 is a longitudinal structural view of the outer ring gear of the present invention;

FIG. 5 is a schematic view of the transverse configuration of the outer ring gear of the present invention;

FIG. 6 is a detail view of the outer ring gear of the present invention;

FIG. 7 is a detail view of the handpiece of the present invention;

fig. 8 is a detailed view of the handle of the handset of the present invention.

Reference numerals:

1 mobile phone component, 2 insurance component, 3 mobile phone handle, 4 aircraft nose, 5 drill bit, 6 transmission shaft, 7 aircraft nose shell, 8 core, 9 axle core, 10 bearing, 11 drive gear, 12 core lid, 13 outer ring gear, 14 tooth, 15 plectrums, 16 electro-magnet, 17 push switch, 18 spring, 19 bee calling organ, 20 ampere meter, 21 rheostat.

Detailed Description