112results about How to "Shorten the recovery cycle" patented technology

The invention provides a kerve-free sublevel filling mining method. The kerve-free sublevel filling mining method specifically comprises the following steps: dividing sublevel chambers and splitting ore blocks, carrying out mining preparation and cutting engineering arrangement, carrying out kerve explosion, firstly carrying out extraction and filling operation of splitting ore blocks, carrying out extrusion groove explosion to form a cutting groove during extraction of adjacent ore blocks, utilizing a compensation space formed by extrusion explosion to carry out normal explosion extraction operation, after the extraction of a second splitting ore block, entering the next adjacent splitting ore block, forming the cutting groove through extrusion groove explosion, carrying out extraction, and cycling the extraction process of the adjacent ore blocks. Kerve-free explosion is adopted from the second splitting ore to form a stope cutting groove; compared with a normal cutting kerve method, the engineering of cutting a level and cutting a dooryard is eliminated, the operating time is reduced, the stope extraction period is reduced, the mining operation cost is reduced, the stope labor efficiency is improved, the method is suitable for mining ore deposits with poor stability of surrounding rock, and stope top base plate and hanging side surrounding rock collapse can be effectively controlled.

The invention discloses a method for reinforcing the heat transfer efficiency and creep-resistance for pidgeon process reduction tanks, a method for realizing pidgeon process reduction tank automatic charging and discharging, a method for continuous monitoring the pidgeon metal reduction procedure, a method for reclaiming reaction by-product base metals, a vertical reduction tank employing the methods and a pidgeon process reduction furnace constructed by employing the vertical reduction tank.

The invention discloses an ankle joint training adapter, ankle joint training equipment and a training control method thereof. The ankle joint training adapter comprises a foot adapter and a motion control host. The foot adapter comprises an adjuster, an ankle joint position adjusting mechanism, a pedal and a foot fixing piece arranged on the pedal. One end of the ankle joint position adjusting mechanism is connected with the adjuster, and the other end of the ankle joint position adjusting mechanism is connected with the pedal. The motion control host comprises a driving device and a control module. The driving device comprises a motor and a speed reducer connected with the motor. The adjuster is connected with the speed reducer and can rotate relative to an output shaft of the speed reducer. The control module is connected with the motor. The control module comprises an angular position change detection module, a motor current change detection module and a mode selection module. The invention can effectively assist a patient in joint exercise, improve muscle strength, improve joint movement degree, as well as draw and relax stiff joints.

The invention discloses a self-adjustment leg muscle massage wheelchair which comprises a seat. A front leg supporting seat and a rear leg supporting seat are in hollow structures and hinged to the right lower corner of the seat, a massage cushion is connected to the right side of each leg supporting seat, an elastic plate is arranged in each leg supporting seat, the right end face of each elasticplate is connected with the corresponding massage cushion through springs, a plurality of massage hammers are uniformly arranged on the right end face of each elastic plate, right ends of the massagehammers are abutted against the massage cushions, and magnets are arranged on the elastic plates respectively. Second slide rails are arranged on inner left side walls of the leg supporting seats, right sides of the second slide rails are in slide connection with iron blocks respectively, a second speed reducing motor is arranged at the top of each leg supporting seat, a motor shaft at the bottomend of each second speed reducing motor penetrates the top of the corresponding leg supporting seat to connect with a screw rod, and each screw rod penetrates the corresponding iron block and is in threaded connection with the same. By magnetic force of the magnets and elastic force of the springs, the massage hammers vibrate side to side, and the vibration force is transmitted through the massage cushions to massage leg muscles of a patient so as to promote leg blood circulation of the patient.

The invention discloses an automatic cervical vertebra rehabilitation traction chair and relates to the field of medical rehabilitation. Aiming at the problem that the cervical vertebra rehabilitationcycle is long since cervical vertebra rehabilitation operation is not conveniently implemented for a cervical vertebra patient, the invention discloses the scheme that the chair comprises chair legs,a chair plate, a backrest plate and a handle, wherein a connecting rod is rotationally mounted at the top end of the backrest plate; a transverse plate is fixedly connected with the top end of the connecting rod; a first guide wheel is rotationally mounted on the transverse plate; the first guide wheel is arranged close to the front end of the transverse plate; and a second guide wheel is rotationally mounted on the back side of the transverse plate. By adopting the chair, cervical vertebra rehabilitation training operation of a patient can be assisted, the physical power of the patient can be saved, and meanwhile, no labor resource is taken; in addition, the patient can be prevented from toppling over; a face fixing support rack can be adjusted, so that the device can be adaptive to patients of different head shapes to implement cervical vertebra rehabilitation training operation, the practicability of the device is improved, the rehabilitation cycle of the patient can be shortened,and popularization can be benefited.

A leakage method of obstruction reducing furnace intrinsic heat towards the furnace outside along reduction bank; a method which can simultaneously strengthen the coefficient of overall heat transmission and creep resistance of the reduction bank; an air cooling method for metal ingot cylinder of the reduction bank; a method of carrying automatic shipping and delivery of the reduction bank using earth gravity; an on-line continuous monitoring method for matallic reducing process. A vertical reduction bank is built with the said method. A vertical reducing furnace built with the said vertical reduction bank is characterized in that it is of high calorific efficiency, short reduction cycle, long reduction bank age and automatic charge, and can perform on-line observation for reduction process.

The invention discloses an on-bed leg support device for orthopedic nursing and relates to the field of medical nursing. Aiming at the problem that the rehabilitation time is long since an orthopedicpatient lying or sitting cannot have support training on legs, the invention discloses the scheme that the device comprises support columns and a suspension rack, wherein two support columns are symmetrically distributed; a U-shaped suspension rack is mounted at the top ends of the two support columns in a sliding manner; U-shaped side walls of the suspension rack are mounted inside the support columns in a sliding manner; moveable plates are mounted inside the support columns in a sliding manner; clamping blocks are fixedly connected with sides, close to side walls of the suspension rack, ofthe moveable plates; airbags are arranged inside the support columns; and the airbags are positioned on sides, far away from the suspension rack, of the moveable plates. The device not only can be stably clamped and fixed on a hospital bed to provide a suspension and support function on a patient, but also is capable of assisting the patient to take effective rehabilitation training operation andshortening the rehabilitation time of legs of the patient, and is applicable to popularization.

The present invention relates to metal reducing apparatus, and is especially one metal Mg, Ca and Sr reducing apparatus. The metal Mg, Ca and Sr reducing apparatus includes a reducing furnace, a reducing pot inside the reducing furnace, and a support in the bottom of the reducing furnace. The reducing furnace has vertical hearth with upper port in the top and lower port in the bottom; the reducing pot has slag tap in its bottom, slag pipe fixed to its bottom, sealing cover in the lower end of slag pipe, sealing ring between the sealing cover and the slag pipe, and water jacket set to the lower section of the slag pipe. The metal Mg, Ca and Sr reducing apparatus has greatly simplified slag tapping operation and raised material reducing effect.

The invention discloses a magneto-rheological force feedback type active-passive lower limb rehabilitation training device and a control method. The magneto-rheological force feedback type active-passive lower limb rehabilitation training device comprises a left lower limb device and a right lower limb device, wherein the left lower limb device and the right lower limb device are of mirror symmetry structures, the left lower limb device comprises a thigh mechanism, a knee joint mechanism and a shank supporting mechanism, and the knee joint mechanism comprises a rotary magneto-rheological damper and a knee joint driving mechanism. When passive lower limb rehabilitation training is performed, a first spiral push rod device, the knee joint driving mechanism and a second spiral push rod deviceare switched on and respectively drive thigh hip joints, knee joints and ankle joints of the human body to perform passive movements. When active lower limb rehabilitation training is performed, a first linear magneto-rheological damper, a rotary magneto-rheological damper and a second linear magneto-rheological damper are switched on and drive thigh hip joints, knee joints and ankle joints of the human body to perform active movements to increase resistance. The magneto-rheological force feedback type active-passive lower limb rehabilitation training device meets the requirement that a rehabilitation trained person performs active-passive rehabilitation training of two legs simultaneously, and a rehabilitation period is shortened.

The invention relates to an inferior tibiofibular bolt elastic fixing device, which comprises an elastic rod, cones arranged at both ends of the elastic rod, a connecting rod and a nut, wherein the cones are vertical to the elastic rod; one end of the connecting rod is fixedly connected with the middle part of the elastic rod while the other end of the connecting rod is provided with an external thread part; and the nut is screwed with the external thread part. With the adoption of the structure, when the inferior tibiofibular bolt elastic fixing device is used, a tunnel is drilled through the middle of the tibiofibula by a drill, the connecting rod passes through the tunnel, and the external thread part of the connecting rod is screwed with the nut; and tips of the cones on the elastic rod are embedded into the tibia to different extents, so that over-shift front and back and up and down of the tibiofibula and loss of reset are avoided. The surgical procedure is not only minimally invasive, but also has great value for improving the surgical quality, shortening the surgical time, reducing the intraoperative hemorrhage and shortening the postoperative rehabilitation periods of a patient.

The invention discloses an integrated fixing device for an olecranal fracture. The integrated fixing device comprises a banded knitted part and a rope bolt, wherein one end of the banded knitted part is connected with the tail end of the rope bolt; the other end of the banded knitted part is connected with a traction needle; the rope bolt is arranged in an olecranal fracture part for connection; and the banded knitted part is pressed on the olecranal fracture part and is tightened and fixed. The integrated fixing device has excellent biocompatibility; stimulation of implants to the implanted part is avoided; the difficulty that the implants need to be taken out by a secondary operation is avoided; the banded knitted part has relatively low elasticity modulus; blood supply of the fixed part is effectively protected when efficient fixation is provided; the postoperative pain of a patient is reduced; the recovery cycle of the patient is shortened; the banded knitted part provides an effective fixing mode for the slight comminuted olecranal fracture; and in addition, 'minimally invasive idea' is introduced, so that the problems that a previous surgery is complicated in operation, large in wound, serious in post operational pain and local stimulation and the like are solved.

An internal heat exchange method of the production reaction vessel made of magnesium spongy titanium and the equipment of it. The method is as following, the heat exchanger will be inserted into the inner of the reactor, and air-blown medium will be input into the heat exchanger to cool the magnesium spongy titanium in the reactor. The above heat exchanger is tube-in -tube heat exchanger, and the air-blown medium is compressed air and compressed argon. The equipment is tube-in -tube heat exchanger, the inside tube is installed in outer tube by the ring flange, intake tube will be installed on the upside profile of the inside tube, the sihghtglass will be installed on the top of the inside tube, the return tube will be installed on the topside profile of the outer tube. The assemblage ring flange used to connect with the reactor will be installed under the joint between the outer tube and the return tube. The ring shaped charging box will be welded to the outside of the tube-in -tube heat exchanger and the upside of the assemblage ring flange, several feed openings connected with the ring charging box locate uniformly on the ring flange along the circle. The locally high temperature can be banished by this method and this equipment, and the densification of the product can be prevented. And it can also shorten the production cycle, and improve the production energy.

The invention provides an extremity rehabilitation training system. The rehabilitation training system comprises a mechanical structure module and a function module, wherein the function module at least comprises a sensing unit, a mobile terminal and a data processing cloud terminal; the data processing cloud terminal finishes first matching with expert data stored in the data processing cloud terminal on the basis of data, at least comprising pressure data and / or time data and / or journey data, collected by the sensing unit; and the data processing cloud terminal finishes second matching with the first matching result on the basis of user personal information data collected by the mobile terminal, stores the second matching result into the data processing cloud terminal, and using expert data of the second matching result at least comprising one-time training duration and / or training times each day and / or training cycle and / or movement mileage and / or size of support force provided by pedals as a rehabilitation training recommended solution to be sent to the mobile terminal.

The invention discloses a fixing device for a patella fracture. The fixing device comprises a strap-shaped knitting part and hollow screws. A traction needle is connected to at least one end of the strap-shaped knitting part. The hollow screws are arranged in reserved drill holes in the patella fracture. The strap-shaped knitting part penetrates into center holes of the hollow screws under driving of the traction needles and presses the patella fracture in an intersecting mode. The fixing device has excellent biocompatibility, stimulation on the implanting position from the implantation material is avoided, and the problem that the implantation material needs to be taken out through a secondary operation is solved; the strap-shaped knitting part has low elasticity modulus, the screws have a dynamic pressurizing characteristic, blood supply to the fixed part is effectively protected while efficient fixing is provided, postoperative pain of a patient is relieved, and the rehabilitation period of the patient is shortened; the strap-shaped knitting part provides an effective fixing mode for the slight comminuted patella fracture.

The invention provides an ocean dietary composition for treating weakness and after-disease and operative conditioning and a preparation method thereof. The composition comprises DHA-containing algal oil powder, ocean fish oligopeptide powder, wheat oligopeptide, casein phosphopeptide, colla corii asini peptide powder, red dates powder, Chinese yam extract, roxburgh rose powder, concentrated wild jujube juice, water-soluble dietary fiber, vitamin and mineral. The composition is conducive to improving immunity, promoting postoperative wound healing, shortening rehabilitation period and lowering patient's postoperative depression trend. In addition, the composition combines ocean functional factors with conventional traditional Chinese medicine theories and is unique in formulation, simple and convenient in technological process and suitable for industrial production.

The invention discloses a rehabilitation walking stick for the orthopedics department. The rehabilitation walking stick for the orthopedics department comprises a holding supporting module and a telescoping storing module, the holding supporting module comprises a supporting mounting cylinder, threaded mounting cylinders are symmetrically arranged at the left end and the right end of the supporting mounting cylinder, orienting mounting holes are formed in both threaded mounting cylinders at the left side and the right side, supporting holding columns are arranged matched with all the threadedmounting cylinders and the orienting mounting holes, a mounting threaded column is installed at one end of each supporting holding column matched with the corresponding threaded mounting cylinder, orienting mounting columns are inwards installed on the mounting threaded columns matched with the mounting threaded columns, a deformation holding cylinder is embedded to the outer side of each supporting holding column at the outer side of the corresponding mounting threaded column, several reset spring columns are uniformly arranged at the inner side of each deformation holding cylinder at equal intervals, and variable diameter flow guide holes are inwards formed in the deformation holding cylinders matched with the orienting mounting columns. The orthopedics department rehabilitation walkingstick has the advantages of being compact in structure, stable in conveying, high in adaptability, convenient to store, short in rehabilitation cycle and the like.

The invention discloses a method for continuously preparing metal samarium through direct thermal reduction, and belongs to the technical field of nonferrous metallurgy. The preparation method comprises the following steps: Sm2O3, Al, CaO or MgO are mixed, wherein a reducing agent is Al, and can be replaced by an Si-Fe alloy with 75 mass% of Ca or Si; the batching and the pelletizing are performed; and then, the high-temperature reduction reaction is performed for pellets in flowing inert gas or nitrogen atmosphere; and finally, high-temperature samarium steam carried out by flowing inert carrier gases or nitrogen in a high-temperature reduction furnace is condensed to obtain the metal samarium. The method adopts the relative-vacuum manner, cancels a vacuum system and a vacuum reduction tank, realizes the continuous preparation of the metal samarium, shortens the reduction period, and improves the preparation efficiency; the recovery rate of the metal samarium can reach above 97%; as the energy consumption is obviously reduced, the method is a novel energy-saving green process for preparing the metal samarium with low cost; and the method is simple in operation, is simpler in equipment, is low in requirement, and reduces the equipment investment and the operation cost.

The invention relates to a method for preparing a membrane electrode with a carbon tube film as a carrier, comprising the following steps: S1, uniformly dispersing carbon nanotube powder in an alcoholsolvent; 2, uniformly adhere that carbon nanotube powder on the gas diffusion lay through a filtering process to form a carbon tube membrane; S3, uniformly spraying a catalyst precursor containing aplatinum salt solution on the surface of the carbon tube film, and reducing the catalyst precursor so that the platinum salt is reduced into platinum particles to obtain a uniformly dispersed carbon-supported platinum film sheet; S4, uniformly spraying a layer of ionic conductor solution on the carbon-loaded platinum film, drying, and forming an ionic conductive layer on the surface of the platinum particles; 5, place that proton exchange membrane on the ion conductive layer and press the membrane electrode by a hot pressing process. The invention overcomes the problem of low utilization rateof platinum caused by the traditional carbon black as the carrier, realizes the accurate and controllable catalyst and electrolyte layer loading, short reduction cycle, simple equipment requirements,improves production efficiency and reduces cost.

The invention discloses a gradient motor function automatic evaluation system and an implementation method thereof, for solving the problem that an existing patient motion function evaluation mode is time-consuming, labor-consuming and high in cost. The gradient motor function automatic evaluation system comprises an evaluation motion guiding module, a motion evaluation module connected with the evaluation motion guiding module, a microsensor human motion capturing system connected with the motion evaluation module, and a motion connecting module connected with the motion evaluation module and the evaluation motion guiding module at the same time. The gradient motor function automatic evaluation system is reasonable in design, convenient to operate, high in degree of automation, capable of conveniently, rapidly and accurately evaluating the motion function of limbs of patient and saving in both time and labor, and greatly saves labor cost, and meanwhile also improves the work efficiency of doctors, and therefore, the gradient motor function automatic evaluation system has high application value.

The invention belongs to the technical field of non-ferrous metal metallurgy and relates to a method for continuously producing titanium sponge. The method comprises adding molten magnesium and other metal into a reaction container, adding TiCl4 into the metals, carrying out a reaction process to obtain a liquid titanium-containing alloy, periodically extracting the liquid titanium-containing alloy and MgCl2, periodically supplying liquid magnesium and other alloy, and carrying out vacuum distillation separation on the extracted liquid titanium-containing alloy to obtain metal titanium, wherein other metal is one of bismuth, tin and zinc. The method is free of production stopping, realizes continuous production of titanium sponge and has the advantages of low energy consumption, short production cycle and high utilization rate of equipment.

The invention discloses a dental implant surgery drill bit with an auxiliary drill bit. The dental implant surgery drill bit comprises a main drill body, an auxiliary drill and an auxiliary drill driving assembly, wherein the main drill body is a cylinder, the side wall of the main drill body is provided with at least one notch, the notch extends into the main drill body to form a flat auxiliary drill moving cavity, a rotating shaft installation through hole is also formed in the main drill body, two ends of the rotating shaft installation through hole are respectively communicated with the auxiliary drill moving cavity and the bottom surface of the main drill body, the auxiliary drill is disposed in the auxiliary drill moving cavity, the auxiliary drill driving assembly comprises a rotating shaft, an auxiliary drill gear and a main driving shaft, the auxiliary drill gear is disposed below the bottom surface of the main drill body, the rotating shaft penetrates through the rotating shaft installation through hole and is fixedly connected with the auxiliary drill and the auxiliary drill gear, and the main driving shaft is hinged to the bottom surface of the main drill body and engaged with the auxiliary drill gear. By adopting the dental implant surgery drill bit with the auxiliary drill bit, the bone mass of an alveolar bone of a patient can be reserved as far as possible in adrilling process, the injury of the patient is reduced, and the rehabilitation period of the patient is shortened.

The present invention relates to metal reducing apparatus, and is especially one metal Mg, Ca and Sr reducing apparatus. The metal Mg, Ca and Sr reducing apparatus includes a reducing furnace, a reducing pot inside the reducing furnace, and a support in the bottom of the reducing furnace. The reducing furnace has vertical hearth with upper port in the top and lower port in the bottom; the reducing pot has slag tap in its bottom, slag pipe fixed to its bottom, sealing cover in the lower end of slag pipe, sealing ring between the sealing cover and the slag pipe, and water jacket set to the lower section of the slag pipe. The metal Mg, Ca and Sr reducing apparatus has greatly simplified slag tapping operation and raised material reducing effect.

The invention discloses a reciprocating linear saw. The reciprocating linear saw comprises a transmission mechanism, a cutting line and a power device. The power device is connected with the cutting line through the transmission mechanism. The cross section of the cutting line is in a triangular shape. The transmission mechanism comprises a wheel disc, a worm, a turbine connection sleeve, a turbine and a coupler. The reciprocating linear saw is mainly used for a ligament cutting operation, for example, a mouse hand. The reciprocating linear saw is a novel medical electric tool used for the ligament cutting minimally invasive operation. The cutting line is fixed to a guide needle and penetrates from one end of a ligament to the other end during the operation, the cutting line is then brought out and fixed to two rotating pins of the linear saw, a power switch is turned on, and then operation can be started. Therefore, completeness of the hand shape of a patient can be ensured, and the treatment and rehabilitation period of the patient is shortened.

The invention discloses a magnesium electrolytic bath production line and a magnesium ingot melting method in the technical field of magnesium electrolysis. The production line comprises a head groove, electrolytic baths and a separation groove connected in sequence through connecting channels; the multiple electrolytic baths are serially connected with each other; magnesium ingot frames capable of placing magnesium ingots are arranged in the connecting channels between the electrolytic baths; and an air pressure pump is arranged in the separation groove for conveying electrolyte melts in the separation groove into the head groove to form a circulating production line. The magnesium electrolytic bath production line and the magnesium ingot melting method have the following beneficial effects: the magnesium ingot frames are arranged in the connecting channels of the electrolytic bath production line, and the magnesium ingots are put in the magnesium ingot frames, so that redundant heat in electrolytes is used for melting the magnesium ingots; the molten magnesium flows into the separation groove for gathering along with the electrolytes, and is conveyed to sponge titanium reducing production procedures by a two-man ladle for direct reduction of titanium tetrachloride, so that the reducing production period is shortened, and the improvement of the sponge titanium production quality and the acceleration of stable and efficient operation of the production line magnesium electrolysis process are facilitated.

The invention discloses a shape memory alloy driven rope pulling type finger rehabilitation training device and method. The device comprises a vertically-arranged frame, a fixing platform is arranged in the frame, a first pulley, a third pulley and a guiding ring are arranged on the top inside the frame, five second pulleys are arranged at the bottom inside the frame, and a rotating shaft is rotationally installed inside the frame; the device further comprises fingerstalls arranged on the five fingers of the palm in a sleeving mode, an upper steel wire rope connected with the fingerstalls is wound around the first pulley and the third pulley and then penetrates through the guiding ring to be fixed to the rotating shaft, and a lower steel wire rope connected with the fingerstalls is wound around the second pulleys and then is fixed to the middle of the rotating shaft; a magneto-rheological damper and a belt pulley are arranged on one side of the frame, the magneto-rheological damper is connected with the rotating shaft through an internal rotor, the rotating shaft is connected with the belt pulley through a key, a steel wire rope is wound around the belt pulley, and the two ends of the steel wire rope are connected with the bottom of the frame through shape memory alloy wires and springs. The method is applicable to five-finger active / passive coordinated rehabilitation training of a finger hemiplegic patient or a finger injured patient.

The invention provides a device for smelting magnesium, calcium, strontium and barium and belongs to the technical field of metallurgy. The device comprises an inner tank, an outer tank, a heat transfer enhancement device and a water cooling crystallizer. The diameter of the outer tank is greater than that of the inner tank and the inner and outer tanks are of single end-closed structures, and theopening direction of the inner and outer tanks are opposite; the heat transfer enhancement device is arranged in the inner tank at the center axially, the water cooling crystallizer is arranged at one end of the inner and outer tanks and the other end is a welding position. Heat in the device is transferred to a pelletizing feed from the inner and outer tanks simultaneously, so that the heat transfer efficiency is higher. As the inner tank also plays a role of transferring heat, the place with the lowest temperature in the reducing process is transferred from the position of an accessory of acentral tube of a conventional structure to the position between the inner tank and the outer tank, so that the reducing period can be reduced by the device under the condition of a same heating time. On the premise of a same reducing degree, the reduction rate can be increased.

The invention relates to a movement bed, in particular to a lumbar traction movement bed for orthopedic treatment. The technical problem to be solved is to provide the lumbar traction exercise bed for orthopedic treatment, which is high in safety and can relieve the fatigue of a patient. The lumbar traction exercise bed for orthopedic treatment comprises a base and a bed frame, and the bed frame is arranged at the top of the base; the turnover mechanism is arranged on one side of the upper part of the bed frame; the upper bed plate is arranged on the turnover mechanism; the lower bed plate is arranged on one side of the upper part of the bed frame in a sliding manner. Through cooperation of the turnover mechanism and the servo motor, a patient can lie down to do lumbar vertebra rehabilitation exercise, the comfort of the patient is improved, fatigue of the patient is relieved, and operation is convenient; through the stretching device, the lower body of a patient can be driven to slightly stretch while the upper body of the patient twists, the rehabilitation effect is enhanced, and the rehabilitation period is shortened.

The invention discloses a tooth implanting device realizing vibration reduction through electromagnetic suspension. The tooth implanting device comprises a casing, a casing cover, a central body, a vibration shaft, a drive element and a central body cover. The tooth implanting device is safe and efficient, a tooth implant implanted by the device has better initial stability. For interference implanting through vibration, only a small implanting hole is needed to be prepared, the amount of alveolar bone of a patient is kept as much as possible, injury of the patient is reduced, and recovery period of the patient is shortened. An eccentric swing part can promote the whole structure to vibrate during rotation due to the fact that the center of gravity of the part is away from the rotating center, and the design is easy, stable and reliable. The design of integration of a shaft body and the eccentric swing part is compact, violent shaking and collision are not produced easily, and assemblyoperation is facilitated. The device is divided into multiple sections for manufacture and assembly, assembly is facilitated, and cost is reduced.