65 results about "Parafacial" patented technology

The invention relates to the fields of computer-aided technology and maxillofacial plastic medical apparatus and instruments, in particular to an optimal design and manufacturing method for a jaw defect individual restoration. The optimal design and manufacturing method is characterized by comprising the following steps: conducting CBCT scanning on the maxillofacial part of a patient, obtaining DICOM data, guiding the data into three-dimensional modeling software-MIMICS (Materialise, Belgium) to reconstruct a jaw three-dimensional model, designing the individual restoration, designing models of a plurality of virtual screw according to the size of retention screws supposed to be adopted, then moving the models to the appropriate positions of the jaw to simulate the situation to the screw retention restoration, obtaining Von Mises stress and a strain nephogram, and manufacturing entities of various materials through the fast forming technology. The jaw defect individual restoration made through the manufacturing method for the jaw defect individual restoration has good performance in biomechanical properties including breaking strength, stress-strain distribution, the service life and the like. So far, a patient with upper and lower jaw defects accepting an implanting operation is observed for two years, and no bad complications of fracture, exposure and the like happen.

The invention belongs to the field of maxillofacial plastic medical instruments, and in particular relates to a CT (computerized tomography) and CBCT (cone beam computerized tomography) fusion data based digital occlusion guide plate and a reconstruction method thereof. The guide plate has a horseshoe-shaped body, and the guide plate body is provided with a guide plate upper jaw surface, a guide plate lower jaw surface, a guide plate lip outer side and a guide plate lip inner side, wherein the guide plate upper jaw surface and the guide plate lower jaw surface are provided with a groove respectively, and the shape of each groove is fit with the shape of a corresponding tooth crown. Aiming at the difficulty of reconstructing an occluding relation and the problems that the surgical precision of a conventional model needs to be improved and the like, a CBCT and spiral CT fusion data based virtual occlusion reconstruction method, by simulating operative reduction, virtually reconstructing the occluding relation, designing an occluding plate, recording the occluding relation and performing 3D printing to generate a guide plate real object, is used for operatively reconstructing the occluding relation, reducing the operation difficulty, shortening the operation time, ensuring the operation effect, and improving the reconstruction precision.

The invention discloses a positioning method for a craniomaxillofacial surgery. The positioning method comprises the following steps of: first, producing an occlusal splint referring tracer according to a plaster model of dentition of a patient; secondly, fixing an occlusal splint in an oral cavity of the patient, performing CT (Computed Tomography) scanning on the patient to obtain CT scanning image data, and segmenting and reconstructing the CT scanning image data through CT image reconstruction software to obtain a triangular mesh model of soft and hard craniomaxillofacial tissues of the patient and the occlusal splint referring tracer; and thirdly, arranging a standard fixing reference frame at the head of the patient, reading a transformation matrix M2 of the occlusal splint referring tracer in a three-dimensional coordinate system of the standard fixing reference frame, solving a transformation matrix M of the standard fixing reference frame in the three-dimensional coordinate system of the head, solving a transformation matrix Mf of a light-reflecting ball array of a tool in the three-dimensional coordinate system of the head, tracing and navigating the light-reflecting ball array of the tool relative to the three-dimensional coordinate system of the head in real time, and positioning the light-reflecting ball array of the tool.

The invention discloses a method for obtaining mid-facial defect target reference data through anatomical feature point matching, and the method comprises the following steps: selecting, from all CT data of an imaging department, normal human craniomaxillofacial CT data as data in a normal Chinese craniomaxillofacial three-dimensional form database; for all models which meet a database inclusion standard and have complete craniomaxillofacial three-dimensional morphological data, manually marking 70 anatomical mark points of the craniomaxillofacial, and recoding original three-dimensional coordinates Pi (xi, yi, zi) of the anatomical mark points; calculating the weights of all the feature points through an algorithm, and then taking the product of the coordinate distance and the weight corresponding to each feature points as the error corresponding to the feature point; after preoperative CT data of all incorporated patients are obtained, segmenting and removing the displaced fracture blocks, and marking remaining skull anatomical mark points. According to the method, the matching algorithm is improved, the precision of the method is verified through a defect simulation experiment,so that a more accurate mid-facial target data acquisition method is expected to be obtained, the database capacity is expanded, and the precision is verified through the simulation experiment and canbe applied clinically.

The invention discloses a maxillofacial oral clinical diagnosis device, which relates to the technical field of oral treatment, in the existing oral treatment, a doctor needs to hold forceps to expandthe oral cavity of a patient, therefore, fingers of the doctor are tired; and the operation of the other hand of the doctor is inconvenient. The device comprises movable arms, a supporting plate iswelded to the right end of the movable arm, a fixing plate is welded to the left end of the supporting plate, a screw rod rotatably connected to the sides, close to each other, of the two fixed plates, a threaded pipe is arranged on the outer ring of the screw rod in a threaded sleeving mode, a first gear is fixedly arranged on the outer ring of the threaded pipe in a sleeving mode, a supporting rod is hinged to the sides, close to each other, of the two movable arms, and bearings are fixedly arranged on the outer ring of the supporting rod in the sleeving mode. The device is novel in design and easy to operate, the opening degree of the supporting plate can be conveniently and automatically adjusted, the handheld operation is not needed, the labor is saved, convenience is achieved, the illumination direction of a lamp can be conveniently adjusted, and examination and treatment of doctors are facilitated.

The invention belongs to the field of oral digitization, and particularly discloses a fixed correction and invisible correction mixed treatment system based on a digital twinborn model, comprising a data acquisition module used for acquiring soft and hard tissue image data and the like of the dental and maxillofacial neck of a patient; the data processing module is used for processing the collected images and data; the digital twinborn module is used for uniformly integrating the data acquisition information, the processing information and the data scanning information, and constructing a digital twinborn model and performing operation processing; the machine learning module is used for collecting data processing and scheme design of fixed correction and invisible correction mixed treatment; the scheme selection module is used for selecting a fixed correction scheme and / or an invisible correction scheme; the correction effect prediction module is used for outputting soft and hard tissue change conditions after tooth correction; and the scheme revision module revises a preferred treatment scheme according to the predicted correction effect. According to the system, the advantages of different correctors are fully combined, and the treatment time can be greatly shortened.

The invention discloses a maxillofacial fixing device for plastic surgery and a maxillofacial plastic surgery instrument, and belongs to the technical field of beauty instruments. According to the technical scheme, the device is characterized by comprising a fixing frame, wherein supporting devices which are uniformly distributed are fixedly connected to the inner bottom wall of the fixing frame; a headrest is fixedly connected to the tops of the supporting devices; clamping devices are arranged on the two sides of the fixing frame; the clamping devices penetrate through the fixing frame and extend into the fixing frame; air bags are arranged on the opposite sides of the two clamping devices; and inflation pipes are arranged on the opposite sides of the two air bags. Accordingly, by arranging an auxiliary opening device, the size of a medical lantern ring can be changed according to the specific condition of a patient, the patient can open the upper jaw bone and the lower jaw bone more precisely, surgery of medical staff is facilitated, and the treatment effect is better; and by arranging a second limiting rod and a circular limiting groove, a second bevel gear can be limited, the second bevel gear is prevented from deviating in the adjusting process, and normal and reasonable operation of the device is guaranteed.

Methods of conducting object-related procedures and associated system involve a secure and physical interaction being formed between a fiducial device and a site having an associated object to form a fiducial marker. A virtual plan is formed, detailing the procedure on the object at the site, in registration with and with respect to the fiducial marker. Movement of a procedure-conducting device is physically regulated with a guidance device responsive to a controller device and with respect to the fiducial marker. The guidance device physically regulates movement of the procedure-conducting device, according to the virtual plan and corresponding with physical manipulation of the procedure-conducting device by the user, to conduct the procedure. Tactile feedback is provided to the user, via the procedure-conducting device, if the physical manipulation by the user causes the procedure-conducting device to deviate from the virtual plan.

The invention belongs to the technical field of oral medical machinery, and particularly relates to an oral and maxillofacial surgery tumor excision device. The device comprises a pollution discharge mechanism, an endoscope, a mouth gag, a scalpel and a surgical clamp. The pollution discharge mechanism comprises an air pump and an air pipe; one end of the air pipe is connected with the air pump, and the other end is placed in the oral cavity; the device further comprises a cushion block, a disc, a motor and a controller. The cushion block is arranged to be in a U shape, an opening of the cushion block is upward, the cushion block is clamped on the neck, and the head sleeve is arranged beside the cushion block. The head sleeve is composed of two elastic bands. The two elastic bands are vertically connected, and one of the elastic bands is connected end to end. The motor drives the sliding block to move along the sliding rod, the sliding block and the screw rod enable the disc to abut against the cheek side of a patient, and therefore the stability of tumors on the oral and maxillofacial surfaces close to the cheek side in the excision process is improved, and then the excision difficulty of the tumors on the oral and maxillofacial surfaces close to the cheek side is lowered; meanwhile, the efficiency and the success rate of excising tumors on the oral and maxillofacial surfaces by workers are improved.

The invention provides an oral care device used after oral and maxillofacial surgery, and relates to the technical field of medical instruments. The oral care device used after oral and maxillofacialsurgery comprises a medical rubber sheet and an occlusion body, a square hole is formed in the middle of the upper side wall of the medical rubber sheet, a middle protrusion of the occlusion body is slidably connected with the square hole, two conical grooves are formed in the upper surface of the medical rubber sheet, and a conical protrusion is arranged on the lower surface of the occlusion body. The conical protrusions are connected with the conical grooves in a sliding mode, and steel hoop connecting grooves are formed in the positions, located on the edges of the two sides, of the upper surface of the meshing body. An outer cylinder drives the connecting plate and the extrusion teeth to press a yarn roll or a cotton ball into the tooth extraction position through the screws, a patientor a doctor does not need to press the yarn roll or the cotton ball for a long time, discomfort of the patient is reduced, ventilation is conducted through the ventilation grooves and the ventilationholes, and it can be guaranteed that the tooth extraction position has good breathability; and the medical rubber sheet and the occlusion body are connected to two sides of the tooth extraction position, so that a patient can normally eat.

The invention discloses a tumor clamping device for the oral and maxillofacial surgery, which comprises a supporting device and a clamping device, the supporting device comprises two supporting columns and two mounting strips, the two supporting columns are oppositely arranged in the left-right direction, the front surfaces of the two supporting columns are each provided with two connecting pieces which are oppositely arranged in the up-down direction, the two mounting strips are oppositely arranged in the up-down direction, the two ends of the two mounting strips are connected with the front ends of the connecting pieces respectively, an adjusting column is vertically arranged between the two mounting strips and can slide in the length direction of the mounting strips, a mounting piece is arranged on the outer surface of the middle of the adjusting column, the clamping device comprises an operating rod, an adsorption assembly and a clamping assembly, the operating rod is arranged on the mounting piece in a front-back moving mode, the adsorption assembly is arranged in the middle of the operating rod in a front-back adjustable mode and used for adsorbing a tumor, and the clamping assembly is arranged on the periphery of the adsorption assembly in an opening-closing mode and used for clamping and fixing the tumor. The tumor clamping device is convenient to use, stable in clamping, high in practicability, wide in applicability and good in using effect.

The invention discloses a post-radiotherapy mouth opening exercising device for a head and neck tumor patient. The device comprises a connecting mechanism, a mounting strip, a button battery, a driving mechanism, a connecting strip, a control mechanism, an anti-rotating pin and a pressing block. According to the post-radiotherapy mouth opening exercising device for a head and neck tumor patient, apatient does not need to actively open the mouth, and the mouth of the patient can subjected to reciprocating mouth opening training treatment in a passive state for, so that the phenomena that reactive exudation, hardening, maxillofacial soft tissue fibrosis, adhesion, contracture and limited joint movement are generated on the treatment part of the patient. Therefore, by means of the device, the exercise effect of the mouth of the patient is improved, and the exercise efficiency of the mouth of the patient is also improved.

The invention discloses a mandibular ascending branch inner side drag hook special for maxillofacial surgery and relates to the technical field of medical treatment. The mandibular ascending branch inner side drag hook comprises an L-shaped grab handle and an end rod, an angle adjusting mechanism is mounted on one side of the L-shaped grab handle, an extension rod is mounted on one side of the angle adjusting mechanism, a locking nut is connected to one side of the extension rod, a supporting rod is connected to one side of the locking nut, an inner groove is formed in the supporting rod, an adjusting nut is arranged in the inner groove, a connecting screw rod penetrates through the adjusting nut, and an auxiliary lighting mechanism is installed on one side of the connecting screw rod. Themandibular ascending branch inner side drag hook is provided with an end rod, a bent hook and a supporting rod. The arc-shaped structure of the end rod can effectively adapt to the internal conditionof the oral cavity, the hook can hook the lower jaw ascending branch to expose the operation field, the inferior alveolar nerve can be prevented from being damaged, and the integrated structure of the end rod, the hook and the supporting rod can improve the convenience of force application.

The invention discloses a wing-type bite wing holding frame capable of being used for measuring data, and relates to the technical field of oral and maxillofacial medical imaging. The holding frame includes a bite plate, a connecting piece, an imaging plate and a scale ruler; the imaging plate is connected with the bite plate through the connecting piece; the imaging plate is perpendicular to thebite plate; the scale ruler is built in the center line of the bite plate; and the scale ruler is parallel to the imaging plate. The invention further discloses a using method of the wing-type bite wing holding frame capable of being used for measuring the data, and the using method comprises the steps of instructing a patient to bite the scale ruler with upper and lower teeth in an aligned manner, and using a projecting source to make the teeth imaged on the imaging plate. The holding frame makes imaging elements of an imaged bite wing have the significance of accurate data analysis, can carry out collection analysis, record retention, and evaluation and comparison of the data, is more convenient and sanitary to operate, has more accurate and standardized retention, meets the hospital infection requirement, and has very high clinical and scientific research value.

The invention provides a maxillofacial surgery auxiliary system and a method based on an MR head-mounted device. The system comprises the MR head-mounted device and a surgical robot. The surgical robot is used for performing maxillofacial modeling for a patient based on maxillofacial scanning data of the patient to obtain a three-dimensional model for an affected part, conducting planning to obtain a surgical plan according to the three-dimensional model, and matching with a positioning device on the maxillofacial region of the patient to complete the maxillofacial surgery. The MR head-mounted device is used for receiving the three-dimensional model for the affected part transmitted by the surgical robot, acquiring field images, and overlaying the three-dimensional model on a corresponding position of the affected part on the field image so as to monitor the maxillofacial surgery process. The maxillofacial surgery auxiliary system of the present invention can be used for accurately assisting in completing the maxillofacial surgery and reducing pain of patients.

The invention provides an intelligent maxillofacial plastic surgery robot, and belongs to the technical field of beauty, and the intelligent maxillofacial plastic surgery robot comprises a supporting assembly and a sliding bed assembly. The supporting assembly comprises a bottom frame, a saddle, a bed frame and a head frame. A patient lies in the annular groove in the surface of the sliding table with the back facing downwards, the head of the patient faces upwards and is limited and fixed through the annular groove in the surface of the sliding table, the trunk and the head of the patient are rapidly positioned before an operation, and after a doctor anesthetizes the patient, the head of the patient is sent into an operation area through the sliding bed hydraulic cylinder. The lower end of the head of a patient is subjected to arc limiting through the annular groove in the surface of the sliding table in the shaping process, shaking and deviation caused by operation cutting in the maxillofacial shaping process of the patient are reduced, the trunk and the head of the patient are rapidly straightened through the arc limiting design, and the head of the patient is blocked and limited through the arc side wall; and head stress deviation caused by cutting in the operation is reduced, the maxillofacial plastic operation precision is improved, and the maxillofacial plastic effect is better.

The invention discloses an auxiliary device for a maxillofacial surgeon operation. The auxiliary device comprises a square shell, a door plate, a drainage mechanism and a sterilization mechanism, an opening structure is arranged on one side surface of the square shell; the door plate is fixedly arranged on one side surface of the opening structure of the square shell through a spring hinge; the drainage mechanism is fixedly installed on the top wall of the square shell, the sterilization mechanism is installed in the square shell, the sterilization mechanism and the drainage mechanism are arranged in a matched mode, and the drainage mechanism comprises a fixed sleeve, a hose, a hollow handle, a hollow connecting rod, a hollow ball, a negative pressure pump, a connecting pipe, a quartz glass transparent substrate, a liquid discharging pipe and a liquid collecting bucket. According to the auxiliary device, effusion in the oral cavity of a patient in the operation process can be sucked out in time, so that it is guaranteed that a clear operation field can be provided for a doctor; and therefore, it is guaranteed that an operation can be conducted smoothly; the multiple UV lamp tubes can be used for conducting irradiation sterilization on liquid in the diversion channels in the quartz glass transparent substrate, and iatrogenic pollution can be avoided.

The invention relates to a U-shaped suspension drag hook for oral endoscopic surgery. The drag hook comprises a U-shaped drag hook body and a suspension structure. The U-shaped drag hook body is of a U-shaped structure consisting of strip-shaped plates, one end of the U-shaped structure is an extending end, and the other end of the U-shaped structure is a suspension end. The suspension structure is connected with the suspension end of a U-shaped plate. One end of the U-shaped drag hook body extends into a separated tissue gap, the other end of the U-shaped drag hook body passes through the suspension structure. The tissue is pulled to form a gap by adjusting pulling of the suspension structure, and an endoscopic minimally invasive surgery is conducted through the gap.

The invention belongs to the field of oral cavity digital models, and particularly discloses an oral cavity tooth maxillofacial neck digital twinning model mapping system and an establishment method.The oral cavity tooth maxillofacial neck digital twinning model mapping system comprises a data acquisition module, a data processing module, a 3D printing module, a mechanical analysis module, a data scanning module, a digital twinning module and an output module; image data of soft and hard tissues of a maxillofacial region of a patient are collected, and face images, breath, pronunciation, saliva, blood and genes are collected; image data of soft and hard maxillofacial tissue of the patient are collected, wherein the image data of the jaw bone, the face and the neck of the patient are collected through CT, the intraoral scanner scans intraoral tooth data, and the face scanner scans the contour of the soft tissue of the face. According to the twinborn model, the difference of three-dimensional model data, biochemical data, language, breathing and facial expression changes of different individuals is fully considered, the optimal treatment scheme is screened, and the visual distress treatment effect is achieved.

The name of the invention is a maxillofacial pneumatic tourniquet, and relates to a maxillofacial wound compression bandage material. The invention mainly solves the problems that a known bandage is not easy to bind and fix, affects the functions of maxillofacial, ear, eye and other organs, and has a poor compression hemostasis effect. The maxillofacial pneumatic tourniquet of the invention has three fixing belts, which are convenient to fix; a sponge dressing contains a bactericidal and hemostatic drug and has the function of preventing and treating infection and hemostasis; in addition to anelastic fabric, the tourniquet main body is additionally provided with a pneumatic air bag, which has a double pressurization means, enhances the compression hemostasis effect and overcomes the shortcomings of inconvenient fixation and poor compression hemostasis effect of the traditional bandage.

The invention discloses a craniomaxillofacial state analysis method and device and electronic equipment. The analysis method comprises the steps of obtaining a soft tissue sequence image and a black bone sequence image of the head craniomaxillofacial surface of a target user, wherein the soft tissue sequence image and the black bone sequence image are magnetic resonance images MRI; determining a brain midline of the target user, and positioning a median sagittal plane of the head craniomaxillofacial surface by adopting the brain midline; and analyzing whether the head craniomaxillofacial surface of the target user has abnormal deformation or not based on the median sagittal plane. According to the method and the device, the technical problem that the comprehensive craniomaxillofacial statecannot be obtained due to the defect of large error in the determination process of the median sagittal plane of the craniomaxillofacial surface because of the irregularity of the skull in related technologies is solved.

The invention discloses a head-wrapping towel used in general anesthesia for oral and maxillofacial surgery. The head-wrapping towel includes a triangle towel, a connection mechanism and a limit mechanism; and the triangle towel is provided with the connection mechanism, the triangle towel is provided with the limit mechanism, the connection mechanism includes a towel folding indication center line, a towel folding indication horizontal line, head circumference fixing stickers, a forehead protection pad and a rolled towel fixing sticker, and the towel folding indication center line is arrangedat the midpoint of the front of the triangle towel. Compared with the prior art, the head-wrapping towel provided by the invention has the following beneficial effects: the triangle towel, the towelfolding indication center line, the towel folding indication horizontal line, the head circumference fixing stickers, the forehead protection pad, the rolled towel fixing sticker, fixing blocks and nasal cannula fixing buckles cooperate with one another to realize the head-wrapping towel used in the general anesthesia for the oral and maxillofacial surgery, the head-wrapping towel is simple in structure and convenient to use, has a good head wrapping effect, and can be sterilized at high temperature, fix a nasal cannula and protect nose wings, so that the practicality and applicability of thehead-wrapping towel are improved, and the head-wrapping towel brings great convenience to users.

The present disclosure is directed to a customizable distractor for oral and maxillofacial surgery and a system and method for designing and making the same. The distractor includes a steering apparatus that is movable along the helical-shaped distraction path to create gap between the first and second bone segments, an anchoring member for coupling the steering apparatus a first and second bone segment, and a distraction drive mechanism is used to drive movement of the steering apparatus along the distraction path.

The invention discloses a dilator for oral and maxillofacial surgery, and relates to the technical field of medical mouth gags, the dilator comprises a mounting bottom plate and two mounting blocks, the surface of the mounting bottom plate is provided with a mounting hole, the surface of the mounting bottom plate is fixedly connected with a headrest, the surface of each mounting block is fixedly connected with a lower bite plate, and the inner wall of each mounting block is fixedly connected with a limiting rod; the surface of the limiting rod is slidably sleeved with a transmission bent rod, the inner wall of the transmission bent rod and the surface of the limiting rod are jointly and fixedly connected with a first spring, and the surface of the mounting block is provided with a first through hole allowing the transmission bent rod to penetrate out and slidably connected with the transmission bent rod. Through the mutual cooperation of the structures, the mouth distraction device has the effects that the mouth distraction device is suitable for being used by patients of different body types, the mouth distraction degree is controlled by the patient, the comfort degree of the patient is higher, the phenomena of chin dislocation or cramp and the like of the patient are effectively avoided, and the mouth can be manually adjusted for the patient incapable of opening the mouth by himself / herself.