30 results about "Alveolar cavity" patented technology

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 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 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 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.

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 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.

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 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.

The invention belongs to the technical field of biological medicines, and discloses application of intervening BOK in preparation of a medicine for treating COVID-19. In order to search a new immunotherapy scheme for comprehensive treatment of COVID-19, the lung tissue of patients with COVID-19 is researched, and a research result prove that the expression quantity of BOK in the lung tissue cells of the patients with COVID-19 is increased, and BOK gene knockout has an effect on inhibiting new coronal virus membrane protein from inducing apoptosis of human lung cells and vascular endothelial cells; and the effect of inducing lung tissue apoptosis by the new crown virus membrane protein can be inhibited by injecting lentivirus into the trachea of a mouse to express shRNA aiming at BOK, and the knock-down of BOK indicates that BOK is expected to be applied to the comprehensive treatment of COVID-19. The BOK is made into a medicine for treating COVID-19 so as to relieve lung injury and alveolar cavity fluid infiltration of patients with COVID-19, and the medicine is suitable for protecting lung tissues and organs in the development process of COVID-19.