35 results about "Mandibular angle" patented technology

A novel type of method for mandibular angle fracture operation requiring only incision of lateral of mandible and its devices are provided. Only 20 mm of the incision of mandible makes it possible for an operator to perform the operation and to save time and recover time without incision of patient's face because the operator uses the patient's mouth to broaden the operator's view. A mandibular retractor comprising a handle, a frame, an activated shaft having a tip and a controller lever is provided for cutting or holding the target area of the mandibular. A drill-driver comprising a handle, a neck, a power transferring member, a head including a tip hole and an operation axis and a power connection member provided for fix a metal plate on the bone. A tweezers comprising a body portion, a pair of leg portions which are twisted by 90 degree about the body portion and paralleled each other is provide for holding a bolt or nut.

The brace for supporting a jaw angle comprises: a mounting portion extending from the middle of the chest and along the pair of collarbones, and supported on the collarbones; at least one elastic supporting portion extending from the mounting portion and upward along at least one side surface of the neck; and a jaw rest portion extending below the mandible from the elastic supporting portion, andsupporting the jaw by means of the elastic supporting force of the elastic supporting portion.

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 slices 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.

The invention relates to mandibular angle fracture reduction forceps, including a first forcep body and a second forcep body. The two forcep bodies are hinged together through a pin roll. Each forcepbody 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. Each forcep claw section is provided with a support top surface which is used to abut against the surface of a mandibular angle bone on the corresponding side of the fracture line to ensure fracture broken ends on two side of the fracture line to be aligned when the forcep mouth applies fold reset force. The support top surface is arranged on the rear part of the front end of the corresponding forcep claw section in a staggered manner. After the forcep mouth is inserted into the auxiliary retentionhole, through the support top surface on the rear abutting against the mandibular angle bone on the two sides of the fracture line, even though no operation field exists when the reduction forceps apply reset force, the mandibular angle bone on two sides of the fracture line can be ensured to be aligned. The reduction forceps can prevent bones from being damaged since the forcep mouth is insertedtoo deep in the auxiliary retention hole.

The invention discloses a mandible angle osteotomy navigation template preparation method, and the method comprises the steps: (1), building a virtual mandible three-dimensional model; (2), designing an osteotomy line; (3), marking an osteotomy initial body, registering the initial body, and obtaining a thickened registered body and a thickened osteotomy body; (4), carrying out the local Boolean addition of the thickened registered body and the thickened osteotomy body through employing the local Boolean operation, enabling the thickened registered body and the thickened osteotomy body to become an integrated navigation template, and carrying out the smoothening of the external surface; (5), obtaining a mandible angle osteotomy navigation template, and opening a 2.5mm*2.5mm window at a second molar position of the mandible angle osteotomy navigation template. The method provided by the invention is simple in preparation of the mandible angle osteotomy navigation template, and the template is provided with an effective registering part, wherein the registering part can accurately determine the position of the template.

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.