6 results about "Dental examination" patented technology

This disclosure discloses an oral cavity observation instrument, relating to the field of dental examination technology. The specific implementation scheme is as follows: a chamber and a working surface are formed within the outer shell of the main body of the oral cavity observation instrument, with the working surface located on one surface of the chamber; it also includes a camera module and at least one light source; the at least one light source includes a violet light source; the camera module and the at least one light source are respectively disposed within the chamber at positions where they intersect with the working surface, the acquisition window of the camera module faces outwards from the chamber to ensure that the camera module can acquire images outside the chamber; the illumination direction of the at least one light source faces outwards from the chamber to ensure that the at least one light source can emit illumination light outwards from the chamber; a controller is also disposed within the chamber, the controller being used to suppress the original blue pixel information in the original tooth image acquired by the camera module under violet light illumination; and to regenerate a target tooth image based on the information of the original red and green pixels in the original tooth image.

The oral cavity opening size adjusting device comprises a fixing frame and a measuring assembly, rotating seats are rotationally clamped to the two ends of the fixing frame correspondingly, through holes are formed in the rotating seats, a sliding rod and a threaded rod are slidably clamped in the two through holes correspondingly, and fixing blocks are fixedly connected to the bottom ends of the sliding rod and the threaded rod through longitudinal rods correspondingly; the measuring assembly comprises a guide rail connected between the two fixing blocks, a moving seat is slidably clamped on the outer side of the guide rail, and a pair of pneumatic rods are rotatably connected to one side, close to the guide rail, of the moving seat; the external shape of teeth of a patient can be measured by the measuring assembly and synchronized to the soft strip clamped in the shaping clamp, then the occlusion block is arranged in the extension direction of the soft strip and clamped to teeth of the lower jaw of the patient, and finally, the occlusion block is pulled through the fixing block so as to be matched with the fixing frame to open the oral cavity of the patient for auxiliary fixing.

The invention discloses an oral cavity tooth examination method and device, and the method comprises the steps: carrying out the preprocessing of a CBCT image of oral cavity teeth; carrying out coarse segmentation on the CBCT image; determining a target segmentation point of the CBCT image after coarse segmentation, and performing fine segmentation processing on the CBCT image after coarse segmentation based on the target segmentation point to obtain a tooth segmentation image; performing color feature extraction processing on the tooth segmentation image based on an octree to obtain tooth color features; calculating the inclination degree of each tooth in the tooth segmentation image, and carrying out tooth crack detection on the tooth segmentation image based on Hough space to obtain a tooth crack detection result; and performing tooth abnormality examination based on the tooth color features, the inclination degree of each tooth and the tooth crack detection result. According to the invention, the obtained tooth abnormality examination result is more comprehensive and accurate, so that the tooth abnormality examination can achieve a more ideal effect.

The oral cavity dilator comprises a deck chair and a head sleeve, a longitudinal first groove is formed in the middle of a chair back of the deck chair, a first threaded rod is rotationally connected to the inner wall of the first groove, and the first threaded rod is in threaded connection with the rear end of the head sleeve; the front end of the head sleeve is in threaded connection with a first fixing bolt, the tail end of the first fixing bolt is arranged in the head sleeve and is rotationally connected with an arc-shaped fixing block, and a rotary telescopic device is arranged on the outer wall of one side of the head sleeve. The two denture supports are separated from each other by rotating the threaded rod, so that the opening effect is achieved, the neck pillow is arranged on the lower portion of the head cover, neck fatigue is effectively prevented, the situation that the detection of a dentist is affected due to the fact that a child moves randomly in the detection process is prevented, the mouth can be opened to the maximum degree, and neck fatigue is reduced.

The oral tooth spreader for stomatology department examination comprises a fixed seat, spreading plates are hinged to the left side of the fixed seat, and the spreading plates are symmetrically distributed up and down relative to the center point of the fixed seat; a bidirectional threaded rod and a telescopic rod are hinged to the left sides and the right sides of the opposite faces of the two opening plates correspondingly, movable sleeves are arranged on the outer sides of the two ends of the bidirectional threaded rod in a sleeving mode, tooth grooves are formed in the right sides of the opposite faces of the two opening plates, and a rotary disc is fixedly arranged on the outer side of the middle of the bidirectional threaded rod in a sleeving mode. According to the oral tooth dilator for stomatology department examination, an instrument is placed in the oral cavity of a patient, a rotating disc is rotated, a bidirectional threaded rod rotates, two movable sleeves are driven to move oppositely, two dilating plates can rotate oppositely, the oral cavity of the patient is dilated, medical staff can conveniently examine the oral cavity of the patient, meanwhile, a second air bag is expanded, and the oral cavity of the patient is dilated. Therefore, the comfort degree of the oral teeth of the patient when the oral teeth of the patient are opened is improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a dental examination flaring device which comprises flaring plates which are symmetrically arranged, and further comprises an adjusting assembly arranged between the two groups of flaring plates, the adjusting assembly comprises adjusting bases which are symmetrically and fixedly connected to the surface of one flaring plate and close to the surface of the other flaring plate, adjusting rods which are symmetrically and fixedly connected to the surface of the other flaring plate and close to the sides of the adjusting bases, and teeth which are fixedly connected to the surface of the adjusting rod on the lower side and close to the sides of the adjusting bases. A containing groove for the adjusting rod to slide is formed in the adjusting seat; and through the arranged adjusting assembly, the distance between the two groups of flaring plates can be flexibly adjusted according to the oral cavity size of a patient, so that the device can be conveniently used by patients with different oral cavity sizes, medical staff can conveniently use the device, and the application range of the device is expanded.