272 results about "Occlusion" patented technology

The invention discloses a high-precision and automatic dental crown generation method. The method comprises seven steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection, and dental crown generation and multi-dimensional refinement. The method comprises the steps of oral cavity three-dimensional data acquisition, full-mouth tooth semantic segmentation, upper and lower jaw point cloud precise registration, abutment and associated gingiva precise segmentation and trimming, abutment surrounding environment multi-tissue segmentation, neck-edge line secondary precise detection and dental crown generation. Through combination of deep learning and a point cloud algorithm, high-precision segmentation of teeth and gingiva and precise reduction of an occlusion relationship are realized, an oral anatomical feature library and a clinical repair standard are fused, and through multi-dimensional fine adjustment optimization, a dental crown 3D model which is high in fitting degree, harmonious in occlusion and capable of meeting clinical requirements is generated. The method is full-process automatic, greatly improves efficiency, reduces operation threshold, reduces material waste and diagnosis and treatment cost, remarkably improves repair success rate, and is suitable for various oral repair scenes.

The invention relates to the technical field of three-dimensional analysis, in particular to an oral cavity three-dimensional motion analysis system based on dynamic occlusion scanning. The system comprises an oral cavity occlusion feature extraction module, a dynamic occlusion reconstruction module, an occlusion track smoothing module and an oral cavity motion abnormity identification module, and a multi-view structured light scanner can be used for carrying out image scanning on the oral cavity in the dynamic occlusion process so as to obtain a multi-frame original occlusion image sequence; occlusal feature extraction and three-dimensional occlusal reconstruction are carried out on the multiple frames of original occlusal image sequences to construct corresponding three-dimensional occlusal model sequences; a dynamic occlusion trajectory prediction model is constructed based on the three-dimensional occlusion model sequence, oral cavity three-dimensional motion analysis and occlusion trajectory smoothing filtering processing are carried out, and a smooth three-dimensional occlusion motion trajectory is generated; and performing oral cavity motion abnormity identification according to the smooth three-dimensional occlusion motion track so as to generate an oral cavity occlusion three-dimensional motion abnormity identification result. According to the invention, accurate capture and analysis of three-dimensional motion of the oral cavity can be realized.

The invention relates to a method and a system for improving oral cavity digital data fitting accuracy by using a noninvasive 3D modeling marking module. The method comprises the following steps: designing and obtaining a standardized marking module with a plurality of digital marking points on the surface through 3D modeling; non-invasively and reversibly adhering to the surface of an abutment which is used as an auxiliary reference system; the method comprises the following steps: acquiring oral cavity digital model data with a marking module after different intervention processing or in different data acquisition modes, detecting point-line-surface features of the marking module and preferentially matching, and default that corresponding data are overlapped and established in the same three-dimensional coordinate reference system to finish optimal fitting alignment; therefore, the digital data fitting accuracy of the oral cavity is improved; the marking module-assisted fitting method can be used for 1) comparing the accuracy of different digital data acquisition modes; 2) multi-unit temporary tooth data transfer errors are reduced; and (3) the acquisition error of the missing occlusion data of multiple teeth is reduced, so that the precise design of the target prosthesis is assisted.

The utility model discloses a dental component which comprises a first matching structure arranged corresponding to the tongue side or the cutting end of anterior teeth of an upper jaw and a second matching structure arranged corresponding to the lip side or the cutting end of anterior teeth of a lower jaw, and the first matching structure and the second matching structure are configured as follows: when the upper jaw and the lower jaw are occluded, the first matching structure is matched with the second matching structure; the first matching structure and the second matching structure abut against each other to generate force or moment, and the force or moment at least comprises lip tilting force corresponding to the anterior teeth of the upper jaw or lip tilting moment corresponding to the anterior teeth of the upper jaw. In the correction process, at least the maxillary anterior teeth generate lip inclination, firstly, the relative positions of the maxillary anterior teeth and the alveolar bone can be gradually adjusted, so that the maxillary anterior teeth are suitable for being pressed down; on the second aspect, the gap between the upper jaw anterior teeth and the lower jaw anterior teeth can be enlarged so that the first matching structure and the second matching structure can be conveniently installed and designed; and thirdly, the anterior teeth of the upper jaw have certain inclination, so that the anterior teeth of the lower jaw can interact with the anterior teeth of the lower jaw conveniently, and the anterior teeth can be depressed, adducted and the like conveniently.

The utility model discloses an oral biomechanics capsule type detector, which comprises a main body made of an elastic material and provided with a tooth stress area for receiving tooth occlusion and a tongue and lip stress area for receiving tongue pressing and / or lip furling pressure; the capsule type detection structure comprises a plurality of cavities which are formed in the main body and are communicated with one another and a pressure sensor used for measuring the pressure of an integral cavity formed by the plurality of cavities, and the tooth stress area and the tongue and lip stress area are each provided with at least one capsule type detection structure. The measuring device can be used for measuring tooth occlusal force, lip smoothing force and tongue force in the upper jaw jacking direction, has the characteristics of simple structure, safety, sanitation, high comfort level, reliability in measurement, convenience in operation, reusability after cleaning and the like, is beneficial to clinical evaluation and diagnosis, and provides an effective auxiliary means for oral rehabilitation and orthodontic treatment.

The utility model discloses a unicondylar replacement rongeur, which relates to the technical field of medical instruments and comprises a jaw, a front arm, a rear arm, a front shaft, a middle shaft, a handle, a limiting clamp, a plate spring and a rear shaft. The jaw is arranged at the front ends of the front arms, the two front arms are rotationally connected through the front shaft, and the occlusion opening distance of the jaw is large and can reach 9 mm to the maximum. The occlusion opening is enlarged, so that larger and thicker osteophyte can be accommodated, occluded and removed; hyperplastic osteophyte at each part of the quasi-circular patella and osteophyte at the edge of the femoral condyle can be bitten and removed through the design of the circular bend of 100 degrees, and convenience and high efficiency are achieved; the front mouthpiece which is long enough can cover patella length of any countryside, so that osteophyte can be treated conveniently; and the distance between the two shafts is increased, so that a farther and more hidden osteophyte can be processed.

Ablation, crossing, and cutting systems, devices and associated methods can relate to a crossing device that includes, in combination a spring-enhanced handle and body configured to controllably extend and retract an interventional tool within a microcatheter for addressing an occlusion within a vessel of a patient to provide improved access for supplemental treatment and reperfusion.

The utility model discloses a saliva aspirator which comprises a saliva aspirating head, an occlusion part is arranged on the saliva aspirating head, an anti-skid structure is formed on the occlusion part, a cavity is formed in the saliva aspirating head, a plurality of aspirating holes are formed in the saliva aspirating head, and the aspirating holes are communicated with the cavity; one end of the connecting tube is connected with the saliva suction head, and a circulation channel is formed in the connecting tube and communicated with the cavity. According to the saliva aspirator disclosed by the utility model, the friction force between the tooth occlusal surface and the saliva aspirating head can be increased by arranging the anti-slip structure on the occlusal part, so that the saliva aspirating head can be effectively prevented from being separated during use, the reliability of the saliva aspirator during use can be improved, and the aspirating continuity of saliva can be ensured; meanwhile, in the attachment bonding process, the teeth tightly bite the saliva suction head, and the saliva suction head can play a role similar to chewing, so that the invisible orthodontic appliance template is tightly attached to the teeth, and the attachment bonding accuracy and firmness can be improved.

The invention relates to the technical field of medical instruments, in particular to a multi-channel oropharyngeal ventilation device for the anesthesiology department, the multi-channel oropharyngeal ventilation device for the anesthesiology department comprises a ventilation pipe, a functional pipe and a mounting plate, two through holes are symmetrically formed in the side face of the mounting plate, and the ventilation pipe and the functional pipe are arranged in parallel and movably connected to the inner walls of the through holes of the mounting plate respectively; the device further comprises a guide plate fixedly connected to the middle of the mounting plate, occlusion blocks are symmetrically connected to the two sides of the guide plate in a sliding mode, the occlusion blocks are used for being occluded and limited between the upper teeth and the lower teeth of a patient, and the ends, facing ventilation, of the occlusion blocks are arc-shaped end faces. Through the vent pipe and the functional pipe which are arranged in parallel, ventilation support and clinical drainage, dosing and other operations in an anesthesia state are achieved respectively, repeated intubation is avoided, the locking assembly is matched to automatically lock the vent pipe and the functional pipe at the target depth after the device is in place, a catheter is effectively prevented from sliding or dislocation in an operation, and the operation efficiency is improved. And the accuracy and the safety of medical operation are ensured.

An occlusion clip comprising: (a) a first elongated occlusion arm; (b) a second elongated occlusion arm; (c) a first elongated biasing arm coupled to a distal portion of the first elongated occlusion arm; (d) a second elongated biasing arm coupled to a distal portion of the second elongated biasing arm is coupled to a proximal portion of the second elongated biasing arm, where the first elongated occlusion arm extends parallel to the first elongated bias arm along a majority of its length, and where the second elongated occlusion arm extends parallel to the second elongated bias arm along a majority of its length.

The utility model discloses a pediatric nursing sputum aspiration auxiliary device, including inlet portion, flaring portion and silicone rubber layer, the inside of the inlet portion is through and is square tube structure, the inside of the flaring portion is through and is round tube structure, the inlet portion and the flaring portion are mutually connected and through, the silicone rubber layer is sleeved on the inlet portion. The tongue of a child is pressed through the inlet part according with the ergonomic design, displacement is not prone to occurring, the inlet part is sleeved with the silicon rubber layer, a child patient can conduct oral cavity operation such as chewing and biting, and therefore anxiety and impatience caused by the fact that the oral cavity of the child patient cannot move are avoided; therefore, the emotion of the child patient can be well relieved, the comfort of the child patient is effectively improved, a medical worker can insert a sputum suction pipe into the oral cavity to suck sputum after the sputum suction pipe sequentially penetrates through the flaring part and the inlet part, and reliability is high.

This invention relates to an occlusion device comprising a fixing part and a sealing part. The fixing part includes a mesh-woven structure and a plurality of radially extending wings. The occlusion device is provided with at least one limiting member, which connects to at least two positions of the fixing part. Compared with the conventional fixing part design with a cylindrical outer edge (i.e., a circular cross-section), the fixing part of the occlusion device provided by this invention has a plurality of wings that can adaptively engage with the grooves and protrusions of the implantation area, facilitating the anchoring member to abut or penetrate the surface of the implantation area in the corresponding area, thereby obtaining better anchoring capability.

The utility model discloses an artificial nose capable of preventing facial indentation, which comprises an artificial nose body, an air delivery pipe and an intubation tube, the air delivery pipe and the intubation tube are communicated with the input end and the output end of the artificial nose body, and a telescopic tube used for adjusting length and a steering tube used for adjusting orientation are additionally arranged between the intubation tube and the output end of the artificial nose body. The position of the artificial nose body can be adjusted through the telescopic pipe, so that the artificial nose body can avoid the face of a patient and can move to a bed surface on the outer side of the face of the patient, and due to the hardness of the material of the artificial nose body, the situation that a pipeline is blocked due to bending and the air conveying function is affected is avoided; the device can be matched with the telescopic pipe to move to an area which does not hinder operation of a doctor, and operation hindrance cannot be caused.

The invention provides an orthodontic appliance system, which is used for staged mixed orthodontic teeth and comprises a tooth position correction tooth socket unit, a tooth space closing tooth socket unit and a dentition and occlusion shaping tooth socket unit. The tooth position correction tooth socket unit is used for being arranged on an initial dentition in a sleeving mode to obtain a corrected dentition. The tooth space closed tooth socket unit is used for being fixed on the correction dentition to obtain a tooth space closed dentition. The dentition and occlusion shaping tooth socket unit is used for being arranged on the tooth space closed dentition in a sleeving mode to obtain a shaping dentition. Therefore, the orthodontic appliance system can improve tooth arrangement and tooth spacing closure of a user.

The utility model relates to the technical field of oral occlusion positioners, and discloses an occlusion positioner which comprises an upper jaw positioning assembly, the upper jaw positioning assembly comprises an upper jaw positioning piece, a lower jaw positioning assembly is arranged on one side of the upper jaw positioning piece, and the lower jaw positioning assembly comprises a lower jaw positioning piece. An adjusting assembly is arranged on the end face of the side, close to the lower jaw positioning piece, of the upper jaw positioning piece and comprises a mold closing piece arranged on the end face of the side, close to the lower jaw positioning piece, of the upper jaw positioning piece in an attached mode, a positioning assembly is connected between the adjusting assembly and the lower jaw positioning assembly, and the positioning assembly comprises a central positioning screw. The occlusion positioner well solves the problems of muscle de-programming, bad induction of tooth tip inclined planes, induction of maxillofacial deflection, insufficient vertical distance between the jaws and the like, and can find out the fixed position of the jaw position in the positive axis even if the occlusion of a patient is deflected and the positions of the upper jaw and the lower jaw are deflected; during occlusal model taking, the occlusal positioner can better assist doctors in positioning and facilitate recording of model taking data.

The present application relates to the technical field of oral cavity medical equipment, in particular to an oral cavity implant bridge and a using method thereof, the installation assembly comprises an antiskid plate, a connecting plate and an extension plate, the upper surface of the cleaning plate is provided with the extension plate, the extension plate is arc-shaped, the upper surface of the arc-shaped extension plate is fixedly provided with the connecting plate, the connecting plate is inclined, and the inclination angle of the connecting plate is thirty to forty-five degrees; beneficial effects: when the whole bridge is installed on the upper surface of the corresponding dental bed of the patient, after installation is completed, the patient can bite from the inside of the oral cavity, judge whether the tooth model is suitable, if not, communicate with the doctor in time, adjust the tooth model, then the doctor installs the false tooth according to the tooth model, through the effect of the antiskid plate, it is ensured that the patient will not slide in the process of occlusion, and it is ensured that the patient will not hurt the human tissue in the oral cavity.

The utility model belongs to the technical field of false tooth appliances, and particularly relates to an occlusion center measuring scale which comprises a base, a connecting plate and a measuring needle, the connecting plate is connected to the base in a sliding mode so that the connecting plate can be adjusted back and forth in a reciprocating mode and adjusted up and down in a reciprocating mode, and positions of the connecting plate are locked through a first locking piece and a second locking piece respectively. The measuring needle is connected to the connecting plate in a sliding mode so that the measuring needle can be adjusted up and down in a reciprocating mode, and the position of the measuring needle can be locked through a third locking piece, the meshing center measuring ruler is simple in structure and convenient to use, the relative position of the measuring needle can be adjusted according to different individuals, the position can be adjusted, and the measuring accuracy is improved. The tooth position can be accurately indicated, and the precision is improved.

The invention discloses an automatic tooth arrangement mechanism which comprises a rack, a cam mechanism, a swing mechanism, a tooth clamping mechanism, a punching mechanism and a wedge-shaped extrusion mechanism, Y wires are continuously conveyed into the tooth clamping mechanism at equal intervals and stretch out by a zipper tooth height, and the cam mechanism drives the tooth clamping mechanism to move backwards; a cutter in the punching mechanism cuts off a Y wire to form a zipper tooth blank, the zipper tooth blank falls into the tooth clamping mechanism and is adsorbed by negative pressure to be temporarily fixed, in the process, the cam mechanism drives the swing mechanism to drive the punching mechanism to punch a protrusion on the head of the zipper tooth blank, one face of the head is a cavity, the other face of the head is a protrusion, and an occlusion point of zipper teeth is formed; the cam mechanism drives the tooth clamping mechanism to move forwards and interact with the wedge-shaped extrusion mechanism, when the two symmetrically-arranged forming mechanisms are subjected to mold closing, formed zipper teeth can be pressed on a cloth belt and subjected to secondary reinforcement, the actions are repeated, automatic continuous cutting, forming, pressing and secondary reinforcement of the zipper teeth are achieved, and the working efficiency and reliability are greatly improved.

This invention relates to the field of medical devices, and particularly to a novel tracheostomy occlusion device, comprising an operating table, a fixation plate, an adjustment mechanism, and an execution mechanism. This invention addresses the following problems encountered in the practical use of tracheostomy auxiliary retraction devices: prolonged holding of the retractor by the surgical assistant can cause soreness and lead to shaking of the retractor, which in turn can cause neck movement, affecting the normal progress of the surgery and potentially causing further trauma to the patient's trachea. Furthermore, it cannot effectively manage blood flowing from the neck, which may lead to blood entering the trachea and causing respiratory discomfort, even threatening the patient's life; the portion of the tracheostomy cannula inside the trachea obstructs the airway, affecting the patient's ability to cough up sputum and leading to inaccurate assessments of the patient's coughing ability; and it can easily cause blind sinus tracts to form at the tracheostomy site.

The systems and methods are configured for vascular and / or neurointerventional procedures. The systems and methods allow safe and rapid access, including percutaneous access, to the carotid arteries, as well as cerebral or intracranial arteries, for the introduction of interventional devices, such as to treat disease conditions. The methods and devices may include vascular access and retrograde systems.

The application discloses a kind of digital lower jaw accurate positioning and customized removable denture preparation integrated method, it is related to stomatology technical field. Including: initial diagnosis data collection;Digital modeling and jaw position adjustment;Design treatment jaw position guide plate;Try on jaw position guide plate, check lower jaw movement, confirm facial form beautiful, prepare silicon rubber final impression, record the actual occlusion relationship of patient;Based on occlusion relationship preparation-final denture, the obtained-final denture is carried out clinical evaluation.The application is for complex oral conditions, such as occlusion disorder, temporomandibular joint disorder patient, by obtaining personalized fitting removable denture, adjusting the relative position relationship of upper and lower jaw bones, relieving abnormal stress of joint, assisting the stability and recovery of temporomandibular joint, realizing the unity of stability and aesthetic effect of stomatognathic system after repair.

The flexible gear comprises a flexible gear body, the flexible gear body is provided with the tooth head, the tooth head comprises a base body, a transition layer and a wear-resistant layer, the transition layer covers the surface of the base body, the wear-resistant layer covers the outer side of the transition layer, and the wear-resistant layer covers the outer side of the transition layer. The base body and the transition layer are connected through a physical interlocking structure. Through the three-layer structural design of the base body, the transition layer and the wear-resistant layer and physical interlocking connection between the base body and the transition layer, the bonding strength between the wear-resistant layer and the base body is remarkably improved, and the problem that the wear-resistant layer is prone to stripping in the prior art is solved. The transition layer is additionally arranged, the base body and the transition layer are connected through the physical interlocking structure, mechanical meshing is achieved, the binding force is enhanced, and the binding strength is greatly improved compared with traditional plane attachment. And meanwhile, the transition layer is arranged to effectively disperse the interface stress, and the interface cracking risk caused by stress mutation is reduced.

The invention belongs to the technical field of oral occlusion relation preparation, and particularly relates to an occlusion quantitative lifting auxiliary tool and an occlusion relation preparation method. The problems that a direct preparation method cannot quantitatively lift occlusion and depends on patient training and doctor experience are accurately solved, accurate control over the vertical distance is achieved through standardized structural design, recording errors caused by unstable occlusion height and material deformation are thoroughly avoided, and the manufacturing precision of oral cavity devices such as an occlusal plate is remarkably improved. Through the modular design of the replaceable occlusion part, the lower jaw guide sliding block, the upper jaw guide sliding block and the like, all occlusion relation making scenes where the vertical distance of a tooth jaw patient needs to be increased are matched, multiple horizontal relations such as the muscle position, the stable position and the protraction position are covered, the defects that an existing tool is single in function and only suitable for snore resisting equipment making are overcome, and the tool is suitable for being used for making snore resisting equipment. And meanwhile, materials such as traditional wax sheets and occlusion recording silicon rubber are compatible, and the modern mode of direct preparation of a digital optical scanner is adopted, so that different clinical operation requirements are met.

The utility model belongs to tools used for orthodontic treatment of oral and maxillofacial surfaces, and particularly relates to an improved orthodontic movable retainer for malocclusion. The problems that in the background technology, a steel wire used for manufacturing a labial arch and a clamping ring is a 09 steel wire and cannot be too thin, when the steel wire passes through an occlusal surface gap between 34 and 56, teeth are prone to being cushioned, the occlusal degree is too high, the tooth gap is prone to being widened, the adjacency relation of teeth is damaged, and a patient feels uncomfortable when wearing the steel wire are solved. If a groove is ground at the position, the problem of overhigh occlusion is solved. According to the technical scheme, an upper jaw base and a lower jaw base are fixedly connected with a hyperbolic labial arch through connecting steel wires respectively, a clamping ring is formed at the rear end of the hyperbolic labial arch, a check block is arranged on the arc top of the upper jaw base, and a traction curve is formed on the front portion of the clamping ring on the hyperbolic labial arch connected with the lower jaw base. The device is suitable for maintaining the oral and maxillofacial orthodontic state.

Apparatus is provided for treating a vascular malformation, including an orifice section, an occlusion section, and a connecting section. When the apparatus is unconstrained, the orifice and occlusion sections are shaped so as to define orifice-section and occlusion-section curves that wind around non-coaxial orifice-section and occlusion-section central axes, respectively, at changing distances from the axes. The orifice-section curve defines an orifice-section central opening. A projection of the occlusion-section curve occludes at least 25% of a orifice-section-central-opening cross-sectional area of an orifice-section central opening; the projection of the occlusion-section curve is in a direction along the orifice-section central axis, onto an orifice-section plane perpendicular to the orifice-section central axis. Other embodiments are also described.

Occlusion devices are disclosed herein. According to some embodiments, the present technology includes a mesh configured to be positioned within an aneurysm cavity, the mesh having a low-profile configuration for delivery through a catheter to the aneurysm cavity and an expanded configuration for implantation in the aneurysm cavity. The mesh can include a first portion configured to be positioned over the aneurysm neck and a second portion configured to be positioned between the first portion and a dome of the aneurysm. The mesh can include a copper material at the second portion of the mesh, wherein the copper material is configured to promote thrombosis within the aneurysm cavity.

A method for modeling temporomandibular joint osteoarthritis, 6-week-old rats are selected, the rats are confirmed to have entered an anesthetized state before surgery, the rat's mandibular incisors are first checked and confirmed to be normal, the first arm of the device is sleeved on one side of the mandibular incisor, and the palatal side of the maxillary incisor is made to touch the slope surface of the second arm of the device, the device is checked and confirmed to not affect the rat's mandibular movement and occlusion, not significantly raise the bite, have no early contact, and the upper and lower jaw relationship is relatively stable; the device and the mandibular incisor sleeved with the device are fixed; then the rat is put back into the cage, and soft food or powdered feed is given after waking up; the device is removed after being fed for 8 weeks or more. It is verified that the condylar process of the rat changes significantly, the overall condylar process is significantly reduced, the subchondral bone is destroyed, and the expression of the cartilage matrix is also reduced. Thus, a TMJOA rat model exhibiting mandibular retrusion is formed.

The utility model discloses an invisible tooth socket component which comprises a first invisible tooth socket matched with a first tooth jaw, a second invisible tooth socket matched with a second tooth jaw and a guide plate, the first invisible tooth socket comprises a first buccal labial surface, a first lingual surface and a first contact surface connected with the first buccal labial surface and the first lingual surface; the second invisible tooth socket comprises a mounting surface corresponding to an adjacent tooth gap of the second tooth jaw, the guide plate is connected with the mounting surface, and when the first invisible tooth socket and the second invisible tooth socket are in an occlusion state, the guide plate abuts against the first contact surface so as to realize lowering, leading or retracting of the first tooth jaw. The guide plate is arranged corresponding to the adjacent tooth gap of the second tooth jaw, and when the first invisible tooth socket and the second invisible tooth socket are in an occlusion state, no matter which area of the first contact surface is abutted by the guide plate, the guide plate can apply acting force to the first contact surface; the first contact surface can transfer the acting force to the first tooth jaw so as to realize lowering, leading or retracting of the first tooth jaw.

To provide an oral cavity model capable of reproducing the state of upper and lower teeth and occlusion of a patient. [Solution] The oral cavity model 10 is three-dimensionally shaped for each patient and has an upper jaw section 20 with a plurality of upper teeth sections 21 that mimic all of the patient's upper teeth and an upper gum section 22 that mimics the upper gums, a lower jaw section 30 with a plurality of lower teeth sections 31 that mimic all of the patient's lower teeth and a lower gum section 32 that mimics the lower gums, and a connecting member 40 that connects the upper jaw section and the lower jaw section in an openable and closable manner.