34 results about "Mandibular angle" patented technology

The invention relates to a navigation physical system for precisely cutting the bone of a mandible, in particular to a manufacturing method of a navigation entity for an individuation angle of mandible obesity operation. Aiming at cutting the bone with obese angle of mandible which is a common cranio-jaw-facial operation, the invention realizes the three dimensional accurate cutting bone of the angle of mandible through the operation navigation entity which is formed by the rapid manufacturing technique, improves the operation quality and reduces complications. Compared with the conventional technique, the invention has the advantages that the individuation operation navigation entity is formed by the rapid manufacturing technique, thus guiding the accuracy of cutting bone and bilateral symmetry. In addition, on the basis, the accurate operation navigation technique which is realized by the rapid molding also can be applied to other cranio-jaw-facial plastic operations, thus realizing the digitizing and accuracy of the operation.

The invention provides a head rest for an operating table. The head rest for the operating table comprises a base and a head fixture, wherein the base is connected with an operating table; and the head fixture is connected with the base. The head fixture comprises a first supporting part, a second supporting part, a first clamping part and a second clamping part, wherein the first supporting part is used for supporting the frontal bone of a patient's head; the second supporting part rotatably connected with the first supporting part is used for supporting the cheekbone of the patient's head; the first clamping part which is connected with the first supporting part and capable of rotating in the vertical direction is used for clamping the occipital bone of the patient's head; and the second clamping part arranged on the second supporting part is used for clamping the mandibular angle of the patient's head. The base is provided with a hollow projection area corresponding to the portion just below the patient's neck. Traction of the patient's neck or accurate displacement of the patient's head in horizontal and vertical directions can be realized by moving the head rest during surgery.

The invention discloses an instrument for cutting bones, particularly a special swaying saw for cutting bone on the corner of the lower jaw, mainly used for undertaking bone-cutting on the corner of the lower jaw within the oral cavity.

The present invention discloses a mandibular angle curved osteotomy guider which comprises a similar fan-shaped positioner having a hook, a long rod having a hook, and a similar fan-shaped connector; the similar fan-shaped positioner having a hook is slidably connected with the similar fan-shaped connector in a sleeving manner; the long rod having a hook is connected with the similar fan-shaped connector; and the hook portion of the long rod having a hook is designed to be hollow. By adoption of the guider, the position of an osteotomy line can also be accurately determined under a blindness condition, the bilaterally symmetric effect is achieved, operation risk is reduced, operation time is shortened, and operation effect is improved.

The invention discloses a transcutaneous electrical stimulation snore relieving device comprising a snore relieving band and a transcutaneous electrical stimulation host; the snore relieving band comprises an upper fixing portion for fixing heads and a lower fixing portion for fixing jaws; the lower fixing portion is provided with an electrode slice fixing portion; the electrode slice fixing portion is positioned in the middle of a lower mandibular angle and a jaw and above a throat; an electrode slice is fixed in the electrode slice fixing portion; the electrode slice is connected with an output terminal of a pulse generator of the transcutaneous electrical stimulation host through an electrode wire; each of the upper fixing portion and the lower fixing portion is provided with an electrode wire fixing portion for fixing the electrode wire so that the electrode wire extends along the back of the ear toward the top of the head. The transcutaneous electrical stimulation host also comprises an MCU, a regulating module and a power supply. The MCU is used for controlling the pulse generator to generate a corresponding pulse signal according to preset parameters. The beneficial effects of dual treatment of OSAHS can be obtained by the present invention by using the technical solution combining snore relieving band and transcutaneous electrical nerve stimulation.

The invention discloses a head lymph massage instrument and a using method thereof, and relates to the field of neurosurgery, the head lymph massage instrument comprises a drainage pump and an inflation drainage head sleeve, and the drainage pump comprises an inflation module, a control module, a display module, a shell and a switch. According to the head lymph massage instrument and the using method thereof, a physical therapy is used for replacing manual massage, pressing type drainage is conducted on lymphatic systems in front of the ears, behind the ears and at the lower jaw of a patient, and drainage in front of the ears and behind the ears is drained to the clavicle from top to bottom in the jugular vein direction; the chin drainage starts from the chin and drains towards the inflection point of the mandibular angle from front to back along the mandible, so that a doctor can be helped to massage the head lymph of a patient by using a physical technique under the condition of not performing craniotomy or skull drilling and intubation, the intracranial pressure of the patient is reduced, the surgical pain of the patient is relieved, the intracardiac pressure is reduced, and the postoperative infection risk is avoided.

The invention discloses a mandibular angle drag hook, which comprises a handle and a working end, wherein the working end and the handle form an included angle ranged from 30 degrees to 60 degrees; the working end is in a Y shape and comprises divaricating ends and a connecting end; hook angles extending downwards are respectively arranged on tips of the divaricating ends; the connecting end is connected with the handle. The mandibular angle drag hook has the advantages that (1) the reasonable design is adopted, and the working end is designed to be the Y shape and respectively goes deep into the lower edge of a mandibular body and the rear edge of a mandibular ramus, so that the wider visual operative field is exposed; (2) the connecting end is designed to be a half moon shape and conforms to a mouth shape, so that the maximum contact area is ensured, the hurt to the mouth is reduced, meanwhile, the mouth can be pulled and opened, and the deep visual operative field is exposed; (3) since the area of the working end is larger than that of a traditional drag hook, a power drill can be fully separated from soft tissues, accidental injury is avoided, and masseter and buccal mucosa can be protected.

The invention relates to the field of medical instruments for maxillofacial orthopedics, in particular to an inferior alveolar nerve protection guide plate based on mandible cystic lesion scaling. The inferior alveolar nerve protection guide plate comprises a guide plate body. The guide plate body is provided with a guide plate inner side face and a guide plate outer side face, and is further provided with a guide plate front edge, a guide plate rear edge, a guide plate upper edge and a retainer. The guide plate front edge and the guide plate rear edge serve as the left end and the right end of the guide plate body respectively, the end of the guide plate front edge is provided with a cystic lesion anterior boundary indication edge, and the end of the guide plate rear edge is provided with a cystic lesion posterior boundary indication edge. The guide plate upper edge is located at the upper end of the guide plate body, the end of the guide plate upper edge is provided with a guide plate upper edge line, and the form of the guide plate upper edge line is completely fit with that of a cystic lesion lower edge needed for preoperative simulation. The retainer is located at the bottom end of the guide plate inner side face and is concave, and the form of the retainer is completely fit with that of a mandibular angle needed for preoperative simulation. Through the protection guide plate, important anatomical structures such as the inferior alveolar nerve are positioned and protected, and meanwhile intra-operative guidance is provided; the guide plate is easy and convenient to operate and low in price.

The present invention relates to a method and a device for detecting a nerve, the method comprising the steps of: acquiring a learning image including a plurality of splices arranged in a coronal plane direction; generating learning data in which a nerve and mental tubercle and/or a mandibular angle, serving as a reference for detecting the nerve, are set in the learning image, and learning the learning data so as to generate a learning model; inputting a target image into the learning model; and detecting a nerve from the target image on the basis of the learning data, and application through other embodiments is possible.

The present invention relates to a plastic range limitation device of mandibular angle. It includes a spacing sheet and two fixed sheets which are respectively positioned on outer side edge of said spacing sheet, the described fixed sheets can be bent along outer side of said spacing sheet and connected with said spacing sheet, the inside edge of said spacing sheet is matched with predefined cutting line. Said invention also provides a method for manufacturing said limitation device.

A mandible support device comprising a structural member comprising a support component and an adhesive component. The support component is configured to extend from the head or face above the mandible to the region of the gonial angle, or from the gonial angle on a first side of a face to the gonial angle on a second side of a face, across the premaxilla region of the face. The adhesive componentis configured such that the structural member can be temporarily attached to the skin.

The invention relates to a special protractor for measuring the degree of deviation of the mandibular angle of the torticollis of a child from the midline of a human body. The protractor comprises a container and an angle ruler arranged on the container, and the angle ruler comprises a median ruler and a rotary ruler; a horizontal line is arranged on the side wall of the container, a straight line where the projection of the median ruler on the side wall is located penetrates through the middle point of the horizontal line and is perpendicular to the horizontal line, and the container is used for containing liquid used for judging whether the horizontal line is in a horizontal state or not. The projection of the rotating center of the rotary ruler on the side wall coincides with the midpoint of the horizontal line, and the included angle between the rotary ruler and the median ruler is the degree of the angle ruler. By adopting the technical scheme, an accurate mandibular angle deviation median position degree value can be provided for rehabilitation evaluation, and accurate data comparison is provided in the rehabilitation process.

The invention discloses a lower-jaw holder and a mask with the same. The lower-jaw holder comprises a lower-jaw holding plate. Mandibular angle holding hooks extending upwardly are arranged on the left side and the right side of the rear end of the lower-jaw holding plate respectively. A first binding strip located at the mandibular angle holding hook on the left side is arranged on the lower-jawholding plate. A second binding strip located at the mandibular angle holding hook on the right side is arranged on the lower-jaw holding plate. A third binding strip is arranged on the left side of the front portion of the lower-jaw holding plate. A fourth binding strip is arranged on the right side of the front portion of the lower-jaw holding plate. The lower-jaw holder can lift the lower jaw of a patient to hold it, and accordingly, the effect of opening an airway of the patient is achieved; the lower-jaw holder fits the anatomical structure of the human face, is attached to the skin closely, and accordingly, the skin injury is avoided; the lower-jaw holder is connected through the binding strips, and the lower jaw is lifted according to the mechanics principle; the lower-jaw holder issimple and convenient to use and practical, and can be operated and used smoothly by one person, so that labor and time are saved, burdens of medical staff are relieved, the lower-jaw holding effectis improved, and rescuing efficiency and effect are improved.

The invention discloses a quantitative measurement and analysis system for temporal-mandibular joints on a magnetic resonance image. The system comprises the following steps: step 1, taking a condyle process maximum cross-section image in an MRI image as a measurement object, describing condyle process and mandibular ramus forms, selecting a most prominent point of the condyle process backwards and a most prominent point of the mandibular ramus backwards at the rear edge of the mandibular ramus, and connecting the two points to form a mandibular ramus trailing edge tangent line, namely a vertical reference line; and step 2, making a straight line perpendicular to the tangent line of the rear edge of the mandibular ramus to be tangent to the B-shaped incisura of the mandible, and determining a horizontal reference line. The system has the advantages that: a stable TMJ MRI measurement system can be established, the condylar process height can be effectively evaluated, comparison before and after treatment is carried out, and the treatment effect is evaluated; and the severity of the TMJ organic lesion can be evaluated by comprehensively evaluating the discoid-condylar distance, the joint discoid length and the condylar process height, so that formulation of a treatment scheme is guided, and the treatment effect is predicted.

The invention relates to operating forceps used for mandibular angle fracture reduction. The operating forceps comprise a first forcep body and a second forcep body. The two forcep bodies are hinged through a pin roll. Each forcep body comprises a forcep claw section on the front part and a handle section on the rear part. The front end of the forcep claw section is provided with a forcep mouth which is used to insert into a corresponding auxiliary retention hole by the side of a fracture line to apply a fold reset force. The forcep claw section on each forcep body is connected with a corresponding handle section in a bending transition manner through a bending section. The pin roll is arranged on the two forcep claw sections, so that the operating forceps used for mandibular angle fracture reduction form an oral cavity drag hook structure. The two forcep claw sections form a hook head of the oral cavity drag hook structure. The two handle sections form a handle of the oral cavity draghook structure. The pin roll is arranged on the two forcep claw sections, so that opening and closing degree of the two forcep claw sections is relatively low. When an oral cavity drag hook formed bythe operating forceps pulls an oral tissue, the oral tissue overflown between the two forcep claw sections is few, so as to reduce visual field shielding, and a single person can perform a reductionoperation.

The invention belongs to the technical field of computer modeling, and discloses a human maxillofacial region explosion injury simulation and biomechanical simulation method and system and a medium. The method comprises the following steps: selecting a TNT explosive as an injuring object, taking an explosion target as a left mandibular angle midpoint, establishing a human maxillofacial region anatomical geometrical form through ANSA software, establishing a particle model of the human mandibular and TNT explosives through adoption of a smooth particle dynamics method, setting an explosive particle spacing, and analyzing the influence of explosive shock waves on soft and hard tissues of the human maxillofacial region. According to the method, the injury process and biomechanical characteristics of the human mandibular soft and hard tissue explosion injury are analyzed, the effectiveness of a smooth particle dynamics method in research of the human mandibular soft and hard tissue explosion injury is analyzed, and a new method is provided for a maxillofacial soft and hard tissue explosion injury model. Compared with a finite element research method, the smooth particle dynamics methodhas remarkable advantages in soft and hard maxillofacial tissue blast injuries, and a new method is provided for maxillofacial blast injury model research.