Disclosure of Invention
The invention aims to provide a bone shaping instrument for oral and maxillofacial surgery.
In order to achieve the above purpose, the present invention may adopt the following technical scheme:
The invention relates to a bone shaping instrument for oral and maxillofacial surgery, which comprises:
the support is internally provided with an installation cavity;
the waste liquid collecting tank is in an upper opening structure and is fixed on the top wall of the support;
the support upright post is fixedly connected to the support, and a controller is arranged on the support upright post;
The working table surface is horizontally arranged right above the waste liquid collecting tank, and liquid penetrating holes are uniformly distributed on the working table surface;
the lifting part is arranged on the supporting upright post and is provided with a lifting end and a manual operation end, the working table surface is connected with the lifting end of the lifting part, and the lifting part drives the lifting part to translate up and down;
the fixing part is arranged on the working table surface and used for fixing the bone body to be molded to move up and down along with the working table surface;
The cutting part is arranged on the supporting upright post between the controller and the working table surface and is electrically connected with the controller, and consists of a first speed regulating motor connected to the supporting upright post and a saw blade coaxially and fixedly connected to the end part of a driving shaft of the first speed regulating motor, and the saw blade is vertically arranged right above the fixing part;
The shaping part is arranged in the mounting cavity of the support and is electrically connected with the controller, the shaping part comprises a second speed regulating motor fixed in the mounting cavity of the support, a driving shaft of the second speed regulating motor horizontally penetrates out from the side wall of the support, a shaping grinding head is coaxially arranged at the outer end of the driving shaft of the second speed regulating motor, and the shaping grinding head is arranged at the outer end of the driving shaft of the second speed regulating motor
The power supply is arranged in the mounting cavity of the support and is used for supplying power to the controller, the cutting part and the shaping part.
Preferably, the lifting part comprises a longitudinal chute arranged on the support upright post and a sliding block arranged in the longitudinal chute, the sliding block is driven by a gear rack group arranged in the support upright post to slide up and down along the longitudinal chute, a gear shaft of the gear rack group extends out of the support upright post, an operating handle is arranged at the outer end part of the gear shaft, and the working table surface is fixedly connected to the sliding block and is driven by the sliding block to translate up and down.
Preferably, the fixed part comprises an angle adjusting disc fixed on the workbench surface and of a semicircular structure, an angle mark is arranged on the angle adjusting disc, a horizontally rotating width adjusting ruler is hinged at the center of the angle adjusting disc, a horizontal chute is formed in the width adjusting ruler along the length direction, a length mark is arranged on one long side of the horizontal chute, and a pair of clamping units for clamping the bone to be molded are slidably arranged in the horizontal chute.
Preferably, the clamping unit comprises a clamping seat with a rectangular structure, the length direction of the clamping seat is consistent with the width direction of the horizontal sliding groove, a sliding block which slides along the horizontal sliding groove is fixedly connected to the bottom surface of the clamping seat, a clamping groove is formed in the top surface of the clamping seat along the length direction, a push rod is vertically and spirally connected to one side wall of the clamping groove, a screwing handle is arranged at the outer end of the push rod, and clamping plates which move forwards and backwards in the clamping groove are vertically and fixedly connected to the inner end of the push rod through a bearing seat.
Preferably, a rubber anti-slip pad or a silica gel anti-slip pad is attached to the clamping surface of the clamping plate and the inner side surface of the clamping groove opposite to the clamping plate.
Preferably, the end part of the driving shaft of the first speed regulating motor is coaxially and fixedly connected with a connecting seat, at least two groups of internal thread connecting holes are formed in the outer end surface of the connecting seat, connecting perforations corresponding to the adaptation of the internal thread connecting holes are formed in the saw blade, and the saw blade is fixedly connected to the connecting seat through connecting bolts penetrating through the connecting perforations and being fixedly connected to the internal thread connecting holes.
The elastic speed regulating unit comprises a motor chute vertically arranged on the support upright, a connecting block connected with the first speed regulating motor is slidably arranged in the motor chute, a guide rod vertically penetrating through the lower end face of the motor chute downwards is arranged on the lower surface of the connecting block, a return spring is sleeved outside the guide rod, the upper end of the return spring is fixedly connected with the connecting block, the lower end of the return spring is fixedly connected with the lower end face of the motor chute, pressure electric signal sensors for acquiring and converting voltage analog quantities at two ends of a resistance value reflecting pressure change are arranged on the upper end face of the motor chute, a gap between the lower end acquisition faces of the pressure electric signal sensors is arranged above the upper top face of the connecting block, and the pressure electric signal sensors are used for converting upward top pressure of the connecting block into voltage digital quantities and transmitting the voltage digital quantities to the controller, so that the rotating speed of the first speed regulating motor is controlled by the controller.
Preferably, a waste collection tank fixed to the upper opening on the side wall of the support is provided directly under the dressing grinding head.
Preferably, a blocking cover is covered above the saw blade, and the blocking cover is connected to the outer wall of the controller through an up-and-down telescopic rod.
Preferably, a C-shaped buckle for clamping the physiological saline bottle is arranged on the outer wall of the controller, a spraying hose is arranged on the outer wall of the controller below the C-shaped buckle, a bottle plug puncture drainage needle for penetrating into the physiological saline bottle is arranged at the upper end of the spraying hose, the lower end of the spraying hose is communicated with a spray header on the shielding cover in an adapting way, a peristaltic pump is arranged on the outer wall of the controller below the C-shaped buckle, the middle part of a pipe body of the spraying hose is arranged on the peristaltic pump, and the peristaltic pump drives the physiological saline in the physiological saline bottle to be sucked and sprays the physiological saline on the saw blade.
The invention has the advantages that the cutting part and the shaping part on the support are controlled by the controller, so that the cutting and polishing of the bone to be shaped can be easily realized when the oral and maxillofacial bone is transplanted, the multifunctional saw blade is realized, the saw blade is matched with a working table surface connected to the supporting upright post by the lifting part and a fixing part which is arranged on the working table surface and moves up and down along with the working table surface, the bone to be shaped can be easily clamped, the bone to be shaped can be cut according to any adjustment angle, the accurate shaping and efficient polishing of the bone to be shaped are ensured, in addition, the elastic speed regulating unit which is arranged on the supporting upright post and connected with the cutting part can also enable the cutting part to have certain elasticity to move upwards, so that when the bone to be shaped moves up along with the working table surface to push the saw blade of the cutting part, the saw blade moves upwards along with the first speed regulating motor, the pressure electric signal sensor which is arranged on the upper end face of the motor chute is pressed, the collected voltage analog quantity is converted into digital quantity, the digital operation is carried out by the controller, the digital operation is further, the rotational speed of the first electric signal is controlled by the operation output, the first electric signal is cut off by the motor to be cut off, the first electric signal is rapidly, the first speed regulating motor is cut off, the accuracy is greatly reduced, the accuracy is high, and the accuracy is reduced, and the surgical speed is reduced, and the accuracy is high, and the surgical speed is cut is reduced, and the speed is lower.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1, the bone shaping instrument for oral and maxillofacial surgery comprises a support 1, a waste liquid collecting tank 2, a supporting upright post 3, a workbench surface 4, a lifting part 5, a fixing part 6, a cutting part 7, a trimming part 8 and a power supply 9.
Specifically, the support 1 has a rectangular structure, and a mounting cavity for mounting equipment is formed in the support, and the mounting cavity has a closed structure so as to prevent the equipment in the support from being soaked and damaged. In addition, universal wheels (not shown in the figure) with brake devices can be arranged at four corners of the bottom of the support 1, so that the position of the support 1 can be moved as required.
The waste liquid collecting tank 2 is a rectangular structural tank cavity with an upper opening, and the size of the cross section of the waste liquid collecting tank is consistent with the size of the top wall of the support 1, so that the waste liquid collecting tank can be correspondingly fixed on the top wall of the support 1, and the overall aesthetic property is improved. In addition, a drain pipe (not shown) communicated with the bottom of the tank cavity of the waste liquid collecting tank 2 can be arranged on one side wall of the waste liquid collecting tank 2, and a manual opening and closing valve is arranged on the drain pipe, so that the waste liquid stored in the waste liquid collecting tank 2 can be easily discharged.
The supporting upright 3 is a column body which is vertically arranged and is fixedly connected to the support 1, and most preferably, the supporting upright 3 is fixedly connected to the rear side wall of the support 1, a controller 10 (the controller 10 adopts stm32F103C8T6 chips) for controlling the operation of the bone shaping instrument according to pressure signals is arranged on the supporting upright 3, the controller 10 is provided with a calculation processing and control output function, and the front wall of the controller 10 is provided with a main switch 11, a display screen 12 and a control panel, and of course, the display screen 12 can be directly arranged as a touch screen, so that the control panel is not required to be arranged.
The workbench surface 4 is horizontally arranged right above the waste liquid collecting tank 2, liquid permeation holes 13 (shown in fig. 2) are uniformly distributed on the workbench surface 4, and meanwhile, the size of the workbench surface 4 is smaller than or equal to the cross section size of the tank cavity of the waste liquid collecting tank 2, so that the liquid permeation holes 13 are right above the tank cavity of the waste liquid collecting tank 2, and the waste liquid on the workbench surface 4 directly flows downwards into the waste liquid collecting tank 2.
The lifting part 5 is arranged on the supporting upright 3 and is provided with a lifting end and a manual operation end, and the working table 4 is connected with the lifting end of the lifting part 5, so that the lifting part 5 can drive the lifting part to move up and down. Specifically, as shown in fig. 3, the lifting part 5 includes a longitudinal chute 5.1 provided on the support upright 3, and a slider 5.2 provided in the longitudinal chute 5.1, the slider 5.2 is driven by a rack and pinion set 5.3 installed in the support upright 3 to slide up and down along the longitudinal chute 5.1, a gear shaft of the rack and pinion set 5.3 extends out of the support upright 3, an operating handle 5.4 for conveniently rotating the gear shaft is provided at an outer end of the gear shaft, the slider 5.2 is a lifting end of the lifting part 5, and the operating handle 5.4 is a manual operating end of the lifting part 5, at this time, the workbench surface 4 should be fixedly connected to the slider 5.2, so that the upper and lower translation of the workbench surface 4 can be controlled by the operating handle 5.4.
The fixing part 6 is arranged on the working table 4 and is used for fixing the bone body to be shaped, so that the bone body to be shaped moves up and down along with the working table 4. Specifically, as shown in fig. 4, the fixing portion 6 includes an angle adjusting disc 6.1 fixed on the working table 4 and having an angle mark 6.2 on the angle adjusting disc 6.1, a horizontally rotating width adjusting rule 6.3 hinged at the center of the angle adjusting disc 6.1, a horizontal chute 6.4 provided on the width adjusting rule 6.3 along the length direction, a length mark 6.5 provided on a long side of the horizontal chute 6.4, a pair of clamping units 6.6 sliding in the horizontal chute 6.4 for clamping the bone to be molded, and a pair of clamping units sliding in the horizontal chute 6.4 through the clamping units, so as to realize clamping and fixing of the bone to be molded with different lengths, and a top fixing screw is vertically screwed on the width adjusting rule 6.3, so that the top fixing screw can rotate at the top of the width adjusting rule 6.3 at the center of the angle adjusting disc 6.1, and the top fixing screw can rotate downwards after the width adjusting rule 6.3 rotates at the center of the angle adjusting rule 6.1, so as to realize the angle adjustment of the bone to be fixed at the top of the disc 6.1. Further, as shown in fig. 5, the clamping unit 6.6 includes a clamping seat 6.6.1 with a rectangular structure, the length direction of the clamping seat 6.6.1 is consistent with the width direction of the horizontal sliding groove 6.4, the bottom surface of the clamping seat 6.6.1 is fixedly connected with a sliding block 6.6.2 sliding along the horizontal sliding groove 6.4, a clamping groove 6.6.3 is formed on the top surface of the clamping seat 6.6.1 along the length direction, the clamping groove 6.6.3 is a through groove penetrating left and right, a push rod 6.6.4 is vertically threaded on one side wall of the clamping groove 6.6.3, a screwing handle 6.6.5 is arranged at the outer end of the push rod 6.6.4 positioned at the outer side of the clamping groove 6.6.3, a clamping plate 6.6.7 is vertically fixedly connected at the inner end of the push rod 6.6.4 positioned at the inner side of the clamping groove 6.6.3 through a bearing seat 6.6.6.6, the bearing seat 6.6 is coaxially arranged with the push rod 6.6.4, so that the screwing force of the push rod 6.6.4 can be eliminated, and only the push rod 6.6.7 moves forward and backward in the clamping groove 6.6.3, and the clamp plate 6.6.7 is ensured not to rotate together with the push rod 6.6.4. In addition, a rubber anti-slip pad 6.6.8 can be attached to the clamping surface of the clamping plate 6.6.7 and the inner side surface of the clamping groove 6.6.3 opposite to the clamping surface of the clamping plate 6.6.7, and the rubber anti-slip pad 6.6.8 can be replaced by a silica gel anti-slip pad, so that the friction force during clamping the bone to be molded can be increased, and the clamping effect can be improved.
The cutting part 7 is arranged on the support upright 3 between the controller 10 and the workbench surface 4 and is electrically connected with the controller 10, and the cutting part 7 is provided with a cutting end, so that the cutting end of the cutting part 7 can be controlled by the controller 10 to finish cutting the bone body to be molded fixed on the fixing part 6. Specifically, the cutting part 7 is composed of a first speed regulating motor 7.1 connected to the support upright 3 and a saw blade 7.2 coaxially and fixedly connected to the end part of the driving shaft of the first speed regulating motor 7.1, wherein the saw blade 7.2 is the cutting end of the cutting part 7 and is vertically arranged right above the fixing part 6.
Further, as shown in fig. 6, for facilitating replacement of the saw blade 7.2, a connecting seat 14 may be coaxially and fixedly connected to the end portion of the driving shaft of the first speed adjusting motor 7.1, at least two sets of internal threaded connecting holes 15 are formed on the outer end surface of the connecting seat 14, a connecting through hole 16 corresponding to the internal threaded connecting holes 15 is formed in the saw blade 7.2, and the saw blade 7.2 is fixedly connected to the connecting seat 14 by a connecting bolt penetrating through the connecting through hole 16 and being fixedly connected to the internal threaded connecting hole 15 in a threaded manner, so that the saw blade 7.2 is detachably and fixedly connected to the end portion of the driving shaft of the first speed adjusting motor 7.1.
Furthermore, in order to enable the first speed regulating motor 7.1 to automatically change the rotation speed according to the actual operation, an elastic speed regulating unit 17 capable of moving up and down should be further provided on the support upright 3, and the first speed regulating motor 7.1 should be connected to the support upright 3 through the elastic speed regulating unit 17. Specifically, as shown in fig. 7, the elastic speed regulation unit 17 includes a motor chute 17.1 vertically opened on the support upright 3, a connection block 17.2 connected with the first speed regulation motor 7.1 is slidably provided in the motor chute 17.1, a guide rod 17.3 vertically penetrating downwards on the lower end surface of the motor chute 17.1 is provided on the lower surface of the connection block 17.2, a return spring 17.4 is sleeved outside the guide rod 17.3, the upper end of the return spring 17.4 is fixedly connected with the connection block 17.2, and the lower end of the return spring is fixedly connected with the lower end surface of the motor chute 17.1, so that when the connection block 17.2 slides upwards under the action of force, once the force disappears, the return spring 17.4 pulls the connection block 17.2 to slide downwards to return under the guide action of the guide rod 17.3, thereby enabling the first speed regulation motor 7.1 jacked upwards to return again automatically; in addition, a pressure electric signal sensor 17.5 (the pressure electric signal sensor 17.5 adopts a high-precision high-gain 24-bit A/D conversion chip HX711 as a core and a bridge sensor combined by resistance sheets as a sampling element) connected with the controller 10 is further arranged on the upper end face of the motor chute 17.1, the lower end collecting face of the pressure electric signal sensor 17.5 is arranged above the upper top face of the connecting block 17.2 at intervals, when the connecting block 17.2 slides upwards to push the pressure electric signal sensor 17.5, the pressure electric signal sensor 17.5 converts the top pressure into different resistance values, voltage signals changing at two ends of the collecting resistance are transmitted to the A/D conversion chip HX711 (namely the pressure electric signal sensor 17.5) for digital-analog conversion, then the converted digital quantity is transmitted to the controller 10, the first speed regulating motor 7.1 is controlled by the related calculation of the controller 10 to accelerate the rotating speed, the pressure electric signal sensor 17.5 is realized to receive larger pressure, the faster the first speed regulating motor 7.1 rotates. at this time, once the saw blade 7.2 on the first speed adjusting motor 7.1 cuts off the bone body to be molded, the first speed adjusting motor 7.1, the saw blade 7.2 and the connecting block 17.2 move downwards to return under the pulling action of the return spring 17.4, and the lower end collecting surface of the pressure electric signal sensor 17.5 and the upper top surface of the connecting block 17.2 are arranged in a clearance way, so that the first speed adjusting motor 7.1, The distance of the downward movement of the saw blade 7.2 and the connecting block 17.2 is small and negligible, the purpose of the return spring 17.4 is to pull the connecting block 17.2 downwards to be in disconnection with the collecting surface of the pressure electric signal sensor 17.5, so that the pressure electric signal sensor 17.5 is not supported upwards, at the moment, the voltage signal collected by the pressure electric signal sensor 17.5 can be changed rapidly, the logic result reflecting disconnection of the downward pulling connecting block 17.2 and the collecting surface of the pressure electric signal sensor 17.5 can be obtained in calculation through data transmitted to the controller 10 after digital-to-analog conversion, and the controller 10 can further control the first speed regulating motor 7.1 rapidly to reduce the rotating speed, so that the cutting speed of a bone body to be shaped is greatly improved, the cutting accuracy and the operation safety are improved, and the operation risk is reduced.
The shaping part 8 is arranged in the mounting cavity of the support 1 and is electrically connected with the controller 10, and the shaping part 8 is provided with a polishing end extending out of the mounting cavity, so that the cut bone body to be shaped can be polished. Specifically, the shaping part 8 comprises a second speed regulating motor 8.1 fixed in the mounting cavity of the support 1, a driving shaft of the second speed regulating motor 8.1 horizontally penetrates out of the side wall of the support 1, a shaping grinding head 8.2 is coaxially arranged at the outer end of the driving shaft of the second speed regulating motor 8.1, and the shaping grinding head 8.2 is the grinding end of the shaping part 8. Further, in order to avoid powder or scraps of the bone to be molded polished by the dressing grinding head 8.2 from splashing and scattering, a waste collecting tank 18 fixed on the side wall of the support 1 and opened upwards may be arranged under the dressing grinding head 8.2, and the dressing grinding head 8.2 should be located right above the notch of the waste collecting tank 18. In addition, a protective cover (not shown in the figure) can be covered on the outer side of the grinding head 8.2, and the protective cover can be buckled on the outer side wall of the support 1 in a movable buckle mode, and can be connected on the outer side wall of the support in a hinging mode that the lower edge is turned upwards.
The power supply 9 is disposed in the mounting cavity of the support 1, and is used for supplying power to the controller 10, the cutting portion 7 and the trimming portion 8, and specifically, the power supply 9 may be a storage battery, and a charging port (not shown in the figure) for charging the power supply 9 is disposed on a side wall of the support 1.
In addition, a shielding cover 19 can be covered above the saw blade 7.2, the shielding cover 19 is a transparent cover body, so that powder splashes to injure operators accidentally when the saw blade 7.2 cuts a bone to be molded, and meanwhile, the shielding cover 19 is connected to the outer wall of the controller 10 through an up-and-down telescopic rod 20, so that the shielding cover 19 can be moved upwards when the saw blade 7.2 is replaced, and the shielding cover 19 is prevented from affecting the replacement of the saw blade 7.2. Further, an illumination lamp 21 may be provided on the bottom surface of the controller 10, so that illumination can be performed during the bone cutting operation to be shaped. Further, a C-shaped buckle 23 for clamping the physiological salt water bottle 22 can be further arranged on the outer wall of the controller 10, the C-shaped buckle 23 is erected above the controller 10 through a bracket, a spray hose 24 is arranged on the outer wall of the controller 10 below the C-shaped buckle 23, the spray hose 24 can be fixed on the outer wall of the controller 10 through a clamping clip arranged on the outer wall of the controller 10, and in addition, the spray hose 24 can adopt a commercially available disposable oral cavity water pipe, so that the physiological salt water bottle can be discarded after each operation is completed, and a new spray hose 24 is replaced in the next operation, so that the sterility of the physiological salt water bottle is ensured. The upper end of the spraying hose 24 is provided with a bottle stopper puncture drainage needle 25 which is used for puncturing into the physiological saline bottle 22, the lower end of the spraying hose is communicated with a spray header 26 which is fixedly penetrated on the shielding cover 19 in an adapting way, meanwhile, the outer wall of the controller 10 which is positioned right below the C-shaped buckle 23 is provided with a peristaltic pump 27, the middle part of the pipe body of the spraying hose 24 is arranged on the peristaltic pump 27, so that the spraying hose 24 can be driven by the peristaltic pump 27 to suck the physiological saline in the physiological saline bottle 22 and spray the physiological saline onto the saw blade 7.2 through the spray header 26, and the physiological saline can be sprayed onto the saw blade 7.2 when the saw blade 7.2 rotates at a high speed to cut the bone to be molded, so that the bone to be molded is prevented from being burned by heat generated when the saw blade 7.2 rubs the bone to be molded.
When in actual use, firstly, the distance between the two clamping units 6.6 on the fixing part 6 is adjusted according to the length of the bone body to be molded, so that the bone body to be molded is clamped on the fixing part 6, and the rotation angle of the bone body to be molded is adjusted according to the cutting requirement.
Then, the shield 19 is adjusted downwards, so that the shield 19 is arranged above the saw blade 7.2, and the main switch 11 on the controller 10 is turned on, so that the controller 10 controls the first speed regulating motor 7.1 to be turned on (i.e. the control output end of the controller 10 is electrically connected with the control input end of the first speed regulating motor 7.1) to drive the saw blade 7.2 to rotate.
Then, the operating handle 5.4 of the lifting part 5 is manually adjusted, so that the working table 4 connected to the lifting part 5 is lifted, the bone body to be molded clamped on the fixing part 6 is driven to lift and contact with the lower end of the saw blade 7.2, and the rotation of the saw blade 7.2 is utilized to cut the bone body to be molded.
When the bone to be molded is hard, the working table top 4 can be continuously adjusted upwards, so that the bone to be molded pushes the saw blade 7.2 to move upwards, the first speed regulating motor 7.1 and the connecting block 17.2 are pushed to move upwards, the connecting block 17.2 pushes the pressure electric signal sensor 17.5 on the upper end face of the motor chute 17.1, the signal collecting end of the pressure electric signal sensor 17.5 is electrically connected with the A/D conversion chip HX711 (namely the pressure electric signal sensor 17.5) to convert analog quantity into digital quantity, the collected and converted digital signal is transmitted to the controller 10, the controller 10 processes the voltage signal and controls the first speed regulating motor 7.1 to increase the rotating speed, the greater the pressure applied to the pressure electric signal sensor 17.5 is, the faster the rotating speed of the first speed regulating motor 7.1 is, and the cutting speed of the bone to be molded is greatly increased.
When the bone body to be molded is cut off by the saw blade 7.2, the bone body to be molded does not push the saw blade 7.2 upwards at the moment, so that the first speed regulating motor 7.1, the saw blade 7.2 and the connecting block 17.2 return downwards under the traction action of the return spring 17.4, the contact between the connecting block 17.2 and the collecting surface at the lower end of the pressure electric signal sensor 17.5 is disconnected, the pressure electric signal sensor 17.5 is not pressed any more at the moment, a logic result reflecting the disconnection of the connecting block 17.2 and the collecting surface of the pressure electric signal sensor 17.5 in the downward traction is obtained by a voltage signal transmitted to the controller 10, the controller 10 can further rapidly control the first speed regulating motor 7.1 to reduce the rotating speed, the cutting accuracy and the operation safety are improved, and the operation risk is reduced.
In addition, in the process of cutting the bone body to be molded by the saw blade 7.2, a physiological saline bottle 22 can be clamped and fixed on the C-shaped buckle 23, a new spraying hose 24 is taken, the physiological saline bottle 22 is communicated with a bottle stopper puncture drainage needle 25 at the upper end of the spraying hose 24, the lower end of the spraying hose 24 is communicated with a spray header 26 on the baffle cover 19 in an adapting and inserting way, meanwhile, the middle part of the spraying hose 24 is loaded to the peristaltic pump 27, at the moment, the physiological saline in the physiological saline bottle 22 can be sucked by controlling the peristaltic pump 27 and sprayed on the saw blade 7.2, the aim of reducing the temperature of the saw blade 7.2 is fulfilled, the bone body to be molded is prevented from being burnt by the saw blade 7.2 due to overhigh temperature, meanwhile, the physiological saline can not damage the bone body to be molded, and the sprayed waste liquid can directly flow into the waste liquid collecting tank 2 through a liquid penetrating hole 13 on the working table top 4, and is accumulated in the waste liquid collecting tank 2, and after a certain amount of waste liquid is accumulated, the waste liquid can be discharged through a liquid discharging pipe on the side wall of the waste liquid collecting tank 2.
When the cutting of the bone body to be shaped is completed, the second speed regulating motor 8.1 of the shaping part 8 can be controlled to work through the controller 10 (namely, the control output end of the controller 10 is electrically connected with the control input end of the second speed regulating motor 8.1) to drive the shaping grinding head 8.2 to rotate so as to grind the bone body to be shaped after the cutting is completed, an on-off switch (not shown in the figure) for controlling the on-off of the second speed regulating motor 8.1 can be directly arranged on the side wall of the support 1, and a speed regulating knob (not shown in the figure) for regulating the rotating speed of the second speed regulating motor 8.1 can be directly connected with the second speed regulating motor 8.1 by the power supply 9 at the moment to supply power for the second speed regulating motor.