36 results about "Alveolar cavity" patented technology

The invention relates to a medical dental implant with the surface biomimetic function and a manufacturing method thereof. The medical dental implant is characterized in that the medical dental implant comprises an implant body and further comprises an outer layer of a bionic artificial bone structure, the outer layer is integrally combined with the outer surface of the implant body and capable of simulating the alveolar cavity bone tissue structure around the tooth root portion of a missing tooth of a patient. According to the medical dental implant and the manufacturing method thereof, the outer layer of the bionic bone structure, which is formed in a 3D printing mode and of a massive structure, serves as the outer layer of the tooth implant body, and therefore an ideal embodiment used for simulating the artificial bone surface structure is provided. More importantly, a good activity surface layer structure foundation beneficial to bone marrow stem cell and bone-formation related cell adhesion, proliferation and growth and capable of playing the final bone-formation function is provided, the surface of the foundation is loaded with chemical components such as calcium and phosphate and bioactive molecules such as collagens, hence, a bone-formation promotion microenvironment is created, bone cell generation is induced, and fast and firm bone combination can be achieved at the early stage.

The invention relates to a magnetic hydroxyapatite bioceramic and a preparation method thereof, belonging to the field of biomaterials. The magnetic hydroxyapatite bioceramic is prepared from the following components in parts by weight: 30-55 parts of hydroxyapatite, 6-10 parts of magnetic nano particles, 2-6 parts of magnesium oxide, 1-4 parts of nano titanium oxide, 1-3 parts of boron oxide and 6-20 parts of calcium oxide. The preparation method of the magnetic hydroxyapatite bioceramic comprises the following steps: (1) preparing the hydroxyapatite; (2) mixing the components: (3) cold-press molding powder; (4) calcining at a high temperature; and (5) cooling and taking out the finished product. The magnetic hydroxyapatite bioceramic provided by the invention has high mechanical strength, good toughness and good biocompatibility, is non-irritating, can not be absorbed, can be used for patching and filling alveolar cavities and defected bone, can be used in brain surgery and can be further used for preparing ossicular chain material and cosmetic plastic material.

The invention relates to the technical field of medical treatment, in particular to an intraoperative implant precision detection system and method for dental implant surgery. The system comprises an alveolar cavity, a probe, a connector, an implant, an oral cavity positioning clamp, an implant tooth navigation system, an infrared binocular camera and a mechanical arm. The three-dimensional position of the current implant is obtained in real time by using an interaction mode that a probe is in contact with the implant in an operation, so that the implant precision is calculated in real time in a dental implant operation process, and whether the implant is implanted to an ideal position or not is displayed and judged in real time through the dental implant navigation system; a doctor can adjust the implantation depth in time according to the real-time position of the implanted tooth, so that an operation can be completed more accurately and efficiently.

The invention belongs to the field of comprehensive treatment of dental departments and in particular discloses a digital 3D implanting guide plate manufacturing method and a system thereof. Aiming atthe problems that conventional operation is high in cost and operation can be implemented only after an implanting guide plate is positioned by using a plurality of positioning threads, the inventiondiscloses a scheme that the system comprises a data management center, wherein detection equipment, demonstration equipment, manufacturing equipment, operation equipment and a cloud server are respectively arranged at a connecting end of the data management center; a 3D printer is adopted to manufacture the implanting guide plate; and the implanting guide plate comprises a main body, a tooth implanting hole, a positioning hole, adhesion blocks and an occlusion block. As a plurality of convex points are arranged on the surface of the adhesion blocks at both ends of the implanting guide plate,the friction of the implanting guide plate and an alveolar cavity ridge mucosa in contact and adhesion can be increased, sliding of the main body of the guide plate can be reduced, and in addition, anextra positioning function can be achieved for the main body of the guide plate; and the positioning threads placed in the positioning hole can be reduced to one or two, so that the operation cost can be reduced, and the operation time can be shortened.

An endosseous implant for an implantation in a periodontal tissue made of a sintered ceramic material. The first surface of the implant is configured to be implanted in an alveolar bone tissue. The first surface texture has patterns of recessed alveolar cavities with a closed outline whose average width lies between 8 μm and 15 μm and a surface finish lying between 1 μm and 3 μm. The second surface of the implant is configured to be implanted in a cortical bone tissue. The second surface texture has a pattern of recessed alveolar cavities with a closed outline whose width lies between 1.5 μm and 5 μm and a surface finish lying between 0.1 μm and 0.5 μm. The first and second textures replicate surface texture of tissues similar to the implantation alveolar bone tissue and implantation cortical bone tissue, respectively.

The invention discloses a hydroxy apatite / zirconia composite bio-ceramic and a preparation method thereof, and relates to the field of biological materials. The hydroxy apatite powder is taken as the basic material, nano zirconia is taken as the cladding material, and the nano zirconia is coated on the surface of the hydroxy apatite surface; wherein the average particle size of the hydroxy apatite powder is 10 to 50 [mu]m, the thickness of the nano zirconia cladding layer is 100 to 300 nm; and the hydroxy apatite powder is prepared through a precipitation reaction method or a hydrothermal method. The preparation method comprises steps of preparing hydroxy apatite powder, carrying out chemical vapor deposition reactions, and performing high temperature solid state method. The provided hydroxy apatite / zirconia composite bio-ceramic has a high mechanical strength and good biocompatibility, can be used to repair or fill tooth or alveolar cavity and repair bone damage, and can also be used as artificial bone cores to treat bone tuberculosis.

The invention discloses a method for making a guide plate for complete denture implantation, which is characterized in that polycaprolactone material is injected through a molding die to form a general oral alveolar bone shape, and multiple holes are formed on the surface along the alveolar direction. positioning holes. Beneficial effects of the present invention: the guide plate for implantation of the present invention satisfies the requirement for the implant doctor to quickly and accurately complete the implant operation under the condition of ideal bone density of the patient’s full-mouth gums; using the complete denture implant guide plate, the implant surgery plan is accurate , fast and safe, and can shorten the patient's operation time and reduce the pain of the patient.

The invention belongs to the field of inorganic nonmetal materials, particularly belongs to a preparation method of an anti-bacterial tooth growing and repairing material, and relates to a growing and repairing anti-bacterial tooth material used in an alveolar cavity without a tooth or on the surface of an incomplete tooth. The anti-bacterial tooth growing and repairing material comprises the following main ingredients: apatite crystals containing silver, copper, calcium and phosphorus, titanium oxide and zinc oxide. Under the regulation and control effect of a binary polyelectrolyte compound consisting of water-soluble cationic polyelectrolyte and organic polyatomic acids, ingredients of the tooth growing and repairing material are synthesized with soluble calcium salt, soluble phosphate, copper sulfate and silver nitrate salt, a crystal natural growing method is used, and a dental matrix comprising the apatite crystals containing the silver, the copper, the calcium and the phosphorus, the titanium oxide and the zinc oxide are subjected to adsorption reaction fully. Crystalline grains of the anti-bacterial tooth growing and repairing material are in nanoscale, the copper and the silver can be fine and are uniformly distributed in the tooth growing and repairing material, diameters of metal particles are 30-80 nanometers, and the anti-bacterial tooth growing and repairing material can release anti-bacterial elements quickly and continuously.

The invention discloses a use method of a dental suppository channel type attachment. The use method comprises the following steps: determining position information of the suppository channel type attachment according to alveolar cavity information; acquiring shape information of a suppository channel, and performing conventional preparation on an abutment tooth in front of a tooth lacking gap; acquiring inclination information of an abutment tooth behind the tooth lacking gap, and performing conventional preparation on the abutment tooth behind the tooth lacking gap; preparing a tooth impression according to the alveolar cavity information, preparing a rear half part fixed false tooth according to the tooth impression, and placing a suppository body at a position close to the center of the alveolar cavity; manufacturing a front half part fixed false tooth according to the tooth impression; mounting the rear half part fixed false tooth in an alveolar cavity of a patient, and fixedly mounting the front half part fixed false tooth at one end, far away from the alveolar cavity, of the rear half part fixed false tooth by using an adhesive. The suppository body and abutment teeth on oneside are used for obtaining a common positioning channel, and teeth are ground as little as possible on the other side, so that the purpose of storing tooth tissue as possible is achieved.

The invention discloses an oral implant device. The oral implant device comprises an alveolar bone, wherein a screw-in body is fixedly installed in a bottom groove of an alveolar cavity of the alveolar bone, a base is arranged on the portion, located on the upper side of the screw-in body, in the alveolar cavity of the alveolar bone, a thread groove is formed in the end, away from the screw-in body, of the base, and a thread base is in threaded connection with an inner groove wall of the thread groove. According to the device, through a screw nail which goes deep into the alveolar bone, the bottom end of an implant is fixed to the screw-in body which is screwed in the alveolar bone, moreover, by filling a filling cavity, provided with the screw nail, of the base of the implant with hydroxyapatite and making a filler filling connector communicate with the filling cavity and the alveolar cavity of the alveolar bone, an implant tooth is stably installed in the alveolar cavity of the alveolar bone, and movement is avoided; and by flexibly clamping clamping boards, which are located on an installation base provided with the false tooth, between a lifting board and fixing blocks, the false tooth can be flexibly installed and replaced without moving a lower end portion of the false tooth of the implant, so that secondary damage to a patient is avoided, and the working efficiency of amedical worker is improved.

The invention discloses a novel application of naringin in preparation of a medicine for treating chronic obstructive pulmonary disease. In particular to application of naringin in preparation of drugs for treating chronic obstructive pulmonary diseases induced by diesel PM2.5 particles, including preparation of drugs for treating lung tissue elastic resistance reduction, lung tissue airway resistance increase or lung tracheal wall or alveolar cavity thickening induced by diesel PM2.5 particles. Tests prove that the naringin can be used as a medicinal active component and can be matched with a pharmaceutically acceptable carrier, so that a basis is provided for preventing and treating the chronic obstructive pulmonary disease, and the life quality of a patient is improved.

The invention discloses an oral health detector with an automatic fixing function. An extension cavity is formed in a detector body, an extension rotating shaft is rotatably connected to the left wallof the extension cavity, an extension cam is fixedly connected to the axis of the right end face of the extension rotating shaft, the extension cam is provided with an upper protruding end and a lower protruding end which are symmetrical about the axis, the upper and lower protruding ends of the extension cam are connected with extension connecting rods by hinges, and the upper and lower sides ofthe detector body are provided with two piezoelectric elements capable of sliding up and down. In a mode that the piezoelectric elements generate current and drive the detector to be started, a useroccludes the piezoelectric elements through the teeth and fixes the whole detector firstly, then a camera, a light-emitting bulb and a reflector are driven by magnetic force to illuminate and shoot the rear alveolar cavity in the oral cavity, and meanwhile, the detector can play images shot by the camera through a screen, so that the user can see the health degree of the oral cavity by himself / herself; and the detector is convenient to use.

The invention relates to a buccal type stutter corrector. A buffer rod is arranged on the left side of a right alveolar cavity, a buffer rod is arranged on the right side of a left alveolar cavity, and the left alveolar cavity is connected with the right alveolar cavity through a supporting rod. The buccal type stutter corrector is made of transparent silica gel and is free of toxins and smells, the buccal type stutter corrector is embedded into teeth through the left alveolar cavity and the right alveolar cavity, the tongue is stimulated through the buffer rods on the alveolar cavities, pronunciation of a patient is corrected in a stimulated mode, the firmness on the teeth is improved through U-shaped blocks in the left alveolar cavity and the right alveolar cavity, the privacy of the patient is well protected, the nervousness degree of the patient is reduced to a certain degree, and the purpose of treating stutter is achieved.

The invention discloses a gastroscope device with an auxiliary nursing function, and relates to the technical field of medical instruments. The gastroscope device comprises a fixing mechanism and an alveolar cavity supporting component, wherein a hydraulic telescopic rod is fixedly connected with a first fixing arc plate; the first fixing arc plate is fixedly connected with a pressure sensor diaphragm; an upper arc-shaped alveolar cavity is fixedly connected with a lower arc-shaped alveolar cavity through connecting springs and an arc-shaped supporting plate; a liquid pumping cylinder communicates with a waste liquid collecting tank; the liquid pumping cylinder is in sliding connection with a piston push plate; the piston push plate is rotatably connected with a sealing round cover; and a reset spring is fixedly connected between the piston push plate and the sealing round cover. Saliva can be pumped out through the liquid pumping cylinder and the waste liquid collecting tank, the body and the head of a patient can be fixed through the fixing mechanism, the size of the alveolar cavity supporting component can be reduced, and the problems that a saliva suction component of an existing gastroscope device is unreasonable in a design structure, the size of an oral cavity supporting component can not be adjusted, and the body and the head of the patient are difficult in fixing are solved.

The invention belongs to the technical field of biological medicines, and discloses application of intervening BOK in preparation of a medicine for treating novel coronavirus pneumonia. In order to find a new immunotherapy scheme for comprehensive treatment of novel coronavirus pneumonia, the research on the lung tissue of novel coronavirus pneumonia patients finds that the expression quantity of BOK in the lung tissue cell of the novel coronavirus pneumonia patients is increased, BOK gene knockout can inhibit the apoptosis of human lung cells and vascular endothelial cells induced by a novel coronavirus membrane protein, and BOK knockdown by injecting lentivirus into the trachea of a mouse to express shRNA (short hairpin Ribonucleic Acid) aiming at BOK can inhibit the apoptosis of the lung tissue induced by the novel coronavirus membrane protein, which indicates that BOK is expected to be applied to the comprehensive treatment of the novel coronavirus pneumonia and is prepared into the form of a medicine for treating the novel coronavirus pneumonia, which can relieve lung injury and alveolar cavity fluid infiltration of the novel coronavirus pneumonia patients, and is suitable for protecting lung tissues and organs in the novel coronavirus pneumonia process.

An oral cavity imbedded breathing trachea capable of continuously adsorbing saliva is disclosed, a gum fixing block is arranged on a breathing trachea body, the gum fixing block is fixed on a gum through an upper tooth groove and a lower tooth groove, an extension body extending to the outside of the oral cavity is arranged on the outer side of the gum fixing block, and a saliva adsorption mechanism is arranged in the extension body. The saliva adsorption mechanism comprises an adsorption cavity and a downward extending area, the downward extending area is located in the inner side wall of the lower alveolar cavity, saliva holes facing the interior of the oral cavity are distributed in the surface of the downward extending area, and the adsorption cavity and the downward extending area are filled with water-absorbing cotton yarn. The core of the saliva adsorption mechanism is the adsorption cavity with the water-absorbing cotton yarn and the downward extending area, so that saliva endocrine in the oral cavity of a patient can be adsorbed by the water-absorbing cotton yarn through the saliva hole, and the saliva can be continuously adsorbed only by regularly taking out and replacing the water-absorbing cotton yarn in the saliva adsorption mechanism; saliva is prevented from being accumulated in the oral cavity of the patient and entering the airway to cause danger.

The invention provides an alveolar bone contour prediction model generation method and device, and a prediction method and device. The alveolar bone contour prediction model generation method comprises the following steps: acquiring training sample data, wherein the training sample data comprises a feature image before correction, correction parameters and deformation quantities of upper and lower alveolar cavity contour lines after correction based on the correction parameters; taking correction parameters, a control point of an upper alveolar lingual side contour line before correction, a control point of an upper alveolar labial side contour line before correction, a control point of a lower alveolar lingual side contour line before correction, a control point of a lower alveolar labial side contour line before correction, a contour of upper incisors before correction and a contour of lower incisors before correction as input of an initial network model; performing supervised training by taking the corrected deformation quantity of the upper and lower alveolar contour lines as the output of the initial network model to obtain an alveolar bone contour prediction model. The alveolar bone after orthodontics can be scientifically and reasonably predicted through the obtained alveolar bone contour prediction model.

The utility model belongs to the field of medical instruments, and particularly relates to a buccal device suitable for nasopharyngeal carcinoma radiotherapy, which comprises a Y-shaped supporting rod, the Y-shaped supporting rod is of a hollow structure, the bottom of the Y-shaped supporting rod is in threaded connection with a balloon, a one-way valve is fixedly mounted in an inner cavity of the balloon, and the one-way valve is connected with the Y-shaped supporting rod. Two alveolar cavity bite pads are fixedly mounted on the inner side of the Y-shaped supporting rod; according to the tongue muscle training device, the Y-shaped supporting rod is matched with the tooth groove biting pad, the tongue muscle training device can be suitable for mouth shapes of different sizes, in the using process, the tooth groove biting pad is bitten by teeth and is not prone to sliding, the tongue of a patient can be efficiently positioned through matching of the shaking block and the tongue muscle training block, and tongue muscle training of the patient is facilitated; the problems that an existing oral device for radiotherapy is prone to sliding in the mouth of a patient, a tongue depressor wound with adhesive tape or a small medicine bottle needs to be stuffed into the mouth of the patient to achieve the effects of opening the mouth and fixing the tongue, the mode is not standard, and the effects of opening the mouth and fixing the tongue are not ideal are solved.

The invention relates to the technical field of dental implants and discloses a healing-promoting dental implant which comprises a device body, the device body comprises a soaking box and a dental implant, a sealing plate is mounted above the dental implant, a connecting hole is formed in the center of the surface of the sealing plate, a threaded body is mounted below a healing plate, and medicine outlet pipes are mounted on two sides of a medicine storage groove. And a tooth root pad is arranged below the medicine storage groove. According to the dental implant capable of promoting healing, the sealing plate and the healing plate can be tightly attached to an implant opening by utilizing the circular cone structure of the sealing plate, so that the sealing performance and the compatibility are improved, the strength of the dental implant is improved and the service time of the device is prolonged by utilizing SLA blasting sand, titanium, alloy and a composite material at the periphery of the threaded body, and liquid medicine penetrates through small holes to be in contact with tissue of a tooth part; the bottom end of the dental implant is in contact with the inner bottom end of an alveolar cavity by utilizing the position relation of the tooth root pad and the soft tissue structure of the dental implant, so that the buffering effect during occlusion is improved.

The invention discloses an alveolar bone defect repair bone nail, and the bone nail comprises a rod part; a thread is arranged on the outer wall of the rod part, the thread is provided with an alveolar cavity, the alveolar cavity comprises a bearing tooth side, a guide tooth side, a first arc surface and a second arc surface, and the bearing tooth side, the second arc surface, the first arc surface and the guide tooth side are sequentially arranged from front to back; the rear side of the first cambered surface and the leading flank are in smooth transition; the rear side of the second cambered surface and the front side of the first cambered surface are in smooth transition, the front side of the second cambered surface and the bearing tooth side are in smooth transition, and the arc radius of the second cambered surface is smaller than that of the first cambered surface. According to the alveolar bone defect repair bone nail, the alveolar bone is more attached to the first arc surface and the second arc surface, so that the stability of the bone nail is improved after the bone nail is screwed into the alveolar bone; and the alveolar cavity forms a barb structure, so that the alveolar cavity of the thread and the alveolar bone form an occlusion structure, and the stability of the bone nail screwed into the alveolar bone is improved. The invention can be applied to dental auxiliary appliances.

The invention discloses an oral implant device, comprising alveolar bone, a screw-in body is fixedly installed in the bottom groove of the alveolar bone cavity, and a base is arranged in the alveolar bone cavity on the upper side of the screw-in body, One end of the base away from the screw-in body is provided with a threaded groove, and the inner groove wall of the threaded groove is threadedly connected with a threaded seat. In the device, the bottom end of the implant is fixed on the screw-in body screwed into the alveolar bone through a screw that penetrates deep into the alveolar bone, and hydroxyapatite is filled in the filling cavity provided with the screw at the base of the implant. The connection port is connected with the filling cavity and the alveolar bone cavity, so as to ensure the stable installation of the implant in the alveolar cavity cavity and avoid loosening; the device flexibly clamps the clamping plate on the installation seat with the denture Between the lifting plate and the clamping plate, it can flexibly install and replace the denture without moving the lower part of the implant denture, avoid secondary injury to the patient, and improve the work efficiency of medical staff.

The invention discloses an application of a pyroptosis pathway inhibitor in protection of plateau brain impact lung injury, the pyroptosis pathway inhibitor is applied to preparation of a medicine for preventing and / or treating lung injury caused by plateau brain impact injury, the pyroptosis pathway inhibitor acts on a Caspase-1 / GSDMD signal pathway, the inhibitor comprises a Caspase-1 inhibitor, an ASC inhibitor or a GSDMD-D inhibitor, and the inhibitor comprises a Caspase-1 inhibitor, an ASC inhibitor or a GSDMD-D inhibitor. The medicine is used for improving lung function impairment caused by plateau brain impact injury. The lung function indexes comprise at least one of the maximum inspiration flow rate, the maximum expiration flow rate, the respiratory rate and the accumulated volume, and the medicine is used for relieving lung tissue pathological injury caused by the plateau brain impact injury; the pathological injury comprises at least one of pulmonary alveolar wall thickening, inflammatory cell infiltration, pulmonary alveolar cavity internal hemorrhage and pulmonary alveolar rupture and fusion into pulmonary bulla. The invention provides a new target spot and strategy for clinical prevention and treatment of the secondary lung injury of the plateau craniocerebral impact injury.

The invention belongs to the field of inorganic nonmetal materials, particularly belongs to a preparation method of an anti-bacterial tooth growing and repairing material, and relates to a growing and repairing anti-bacterial tooth material used in an alveolar cavity without a tooth or on the surface of an incomplete tooth. The anti-bacterial tooth growing and repairing material comprises the following main ingredients: apatite crystals containing silver, copper, calcium and phosphorus, titanium oxide and zinc oxide. Under the regulation and control effect of a binary polyelectrolyte compound consisting of water-soluble cationic polyelectrolyte and organic polyatomic acids, ingredients of the tooth growing and repairing material are synthesized with soluble calcium salt, soluble phosphate, copper sulfate and silver nitrate salt, a crystal natural growing method is used, and a dental matrix comprising the apatite crystals containing the silver, the copper, the calcium and the phosphorus, the titanium oxide and the zinc oxide are subjected to adsorption reaction fully. Crystalline grains of the anti-bacterial tooth growing and repairing material are in nanoscale, the copper and the silver can be fine and are uniformly distributed in the tooth growing and repairing material, diameters of metal particles are 30-80 nanometers, and the anti-bacterial tooth growing and repairing material can release anti-bacterial elements quickly and continuously.

The invention relates to an implantation data encryption sharing database based on a cloud platform and a matching method, and the database comprises: a data encryption module which is used for obtaining to-be-implanted alveolar data uploaded by a hospital, carrying out the encryption processing of the to-be-implanted alveolar data, and taking the corresponding to-be-implanted alveolar data subjected to the encryption processing as to-be-referenced data of a component; a data storage module which is used for storing the to-be-referenced data of the component in a preset block chain network; a data sharing module whch is used for acquiring a downloading request message of a target designer for the to-be-referenced data of the component, decrypting the to-be-referenced data of the component according to the downloading request message, acquiring decryption information, performing anti-counterfeiting identification on the decryption information, and sending the to-be-implanted alveolar cavity data to the target designer if the anti-counterfeiting identification is passed, so that a target designer can determine the processing parameters of the implant component according to the data of the to-be-implanted tooth socket. According to the implantation data encryption sharing database and the matching method, the information error condition in the planting component prefabricating process can be reduced.

The invention discloses a semi-movable bionic false tooth which comprises a bionic tooth, the bionic tooth is fixed on a base plate, a retainer is arranged on the periphery of the bionic tooth, a tooth root part of the bionic tooth is embedded into an alveolar cavity, the base plate is attached to an oral mucosa on the periphery of the bionic tooth, so that the bionic tooth obtains mechanical support, and the retainer is used for connecting a natural tooth and the bionic tooth. Therefore, the bionic teeth are effectively fixed. The bionic dentin is porous ceramic jointly constructed by hydroxyapatite modified by hollow aluminum-oxygen cluster porous balls and calcium silicate, hydrogel is filled in the hollow aluminum-oxygen cluster porous balls and in macroporous channels and mesoporous channels of the porous ceramic, and the components of the hydrogel are the same as those of the hydrogel of the bionic dental pulp (3). The invention can promote oral wound healing, treat or prevent oral inflammation, increase the retention ability of false teeth and reduce the absorption speed of alveolar bones, and is especially suitable for teenagers and patients with weak physique and easy infection.

A method for assisted implant replacement based on deep learning, an assisted intelligent system, and a computer-readable storage medium, wherein the system is used to obtain tooth information by segmenting 2-dimensional images of teeth to assist in the selection of implants, and by predicting the implant area Cavity data at the alveolar bone to assist the design of the preoperative implant plan, including: a panoramic image generation unit, which is used to convert the 3D oral data CBCT of the tooth image file to be processed into 2D image data in a panoramic format; The tooth segmentation unit is used to input the image data into the preset image classification model for segmentation to obtain the segmented image data of the tooth; and the alveolar bone information prediction unit is used to perform feature extraction on the segmented image data using the preset feature extraction model, To determine the cavity data related to the alveolar bone. In this way, it can assist the physician to judge the patient's tooth condition to select the appropriate implant, and assist the design of the preoperative implant plan by predicting the data of the alveolar bone cavity.

The present application relates to a kind of nasal sinus dental implant, comprising: dental implant body, external thread and multiple spiral cut slots, the opposite ends of the dental implant body are respectively set as group end and drill end, and, the position of the drill end of dental implant body is provided with recess to be connected with each spiral cut slot and drill area to surround the periphery of recess, and the spiral direction of external thread and spiral cut slot is not same with each other, wherein, drill area is distinguished into multiple drill segments by multiple spiral cut slots, the opposite sides of each drill segment are distributed in different height positions, so that drill segment has drill low and drill high higher than drill low, thereby, when nasal sinus dental implant is implanted in alveolar cavity and contacts the bottom surface of alveolar cavity, drill end can slowly cut alveolar cavity by drill low, and then can avoid the idle running situation that nasal sinus dental implant only rotates without moving.

The invention relates to a preparation method and application of an amphiphilic Janus nano preparation, in view of the excellent biocompatibility of a polylactic acid-glycolic acid copolymer and the anti-inflammatory activity of mesoporous polydopamine, PLGA is selected as a hydrophobic phase, mPDA is selected as a hydrophilic phase, the amphiphilic Janus nano preparation is successfully prepared, the nano preparation can reach a pulmonary alveolar cavity after being inhaled and dosed, and the amphiphilic Janus nano preparation can be applied to the pulmonary alveolar cavity. On one hand, the function of a pulmonary surfactant can be simulated, the pulmonary alveolar interfacial tension is effectively reduced, and the pulmonary alveolar structure is kept stable; on the other hand, the lung microenvironment can be adjusted in an auxiliary mode through self characteristics, a new action path is provided for intervention of lung diseases, and the lung pathological state and disease progress are improved in an assisted mode.

The invention relates to the technical field of medical instruments, in particular to an electronic endoscope for medical image imaging, which comprises an oral pad, placing grooves with trapezoidal groove structures are symmetrically formed in the upper side and the lower side of the front end of the outer surface of the oral pad, inclined rod grooves are formed in the left side and the right side of the groove bottom of each placing groove, and adjusting mechanisms are arranged in the rod grooves. According to the electronic endoscope for medical imaging, when intestinal and gastroscope detection is carried out on a bucktooth patient with maxillary protrusion deformity or bimaxillary protrusion deformity, the inclination degree of an alveolar cavity is adjusted through the adjusting mechanism, so that the electronic endoscope adapts to mouth shapes of different bucktooth patients, teeth of the bucktooth patients can enter the alveolar cavity, the burden of the upper jaw and the lower jaw is reduced, and the medical imaging quality is improved. Unnecessary injury to a patient due to dislocation is avoided; the ball is arranged on the front side of the interior of the tube hole, abrasion between the mirror tube and the tube hole is reduced, and meanwhile the column body can stretch out and draw back in the cylindrical hole under the action of the spring so as to adapt to mirror tubes with different diameters.

The invention relates to an adjustable fixed gingival separator for dental implanting surgery. The adjustable fixed gingival separator comprises a tooth covering structure, a separating structure and a regulating structure, wherein the front end of the tooth covering structure is connected with the separating structure; the rear end of the tooth covering structure is connected with the regulating structure; the tooth covering structure and the separating structure are in crossed connection; the tooth covering structure is in a left and right two-sheet structure form, is basically anastomotic with the tooth shape and is a straight sheet-shaped structure; the separating structure is of a left and right two-sheet structure, is basically anastomotic with the alveolar cavity shape and is a vertical sheet-shaped structure; a left tooth covering structure sheet is connected with a right separating structure sheet; a right tooth covering structure sheet is connected with a left separating structure sheet; the rear ends of the left and right tooth covering structure sheets are connected; a connecting section is arranged between the corresponding tooth covering structure sheet and the separating structure sheet; the connecting section is arranged in a structure which does not influence the regulation of the tooth covering structure and the separating structure; the regulating structure is arranged on the left and right tooth covering structure sheets; the rear end structure of the regulating structure is longer. The gingival separator has the advantages that gingivae can be effectively separated out; the operation is simple and convenient.