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 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 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.

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 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 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 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.