41 results about "Oral and maxillofacial surgery" patented technology

The invention relates to a device that may be used in maxillofacial surgery and dentistry. The device comprises a translating bracket with a cylinder and a fixed bracket with a chamber. A distraction screw is mounted through the cylinder and with one end resting on the chamber. By turning this screw when the device has been mounted on bone pieces osteogenesis can be achieved. The device can be made suitable for both dentulous and edentulous patients with alveolar defects.

A maxillofacial or cranial-facial surgical stabilizer comprising a head frame fully or partially surrounding the head of a patient at an angle running from ears to temple, and that is fixated to the skull of the patient by multiple screws and/or ear holders and screws. One or more flexible/locking arms are removably attached to the head frame for holding and positioning a plurality of interchangeable instruments or accessories. One flexible/locking arm is a medial/center arm accessorized with a dental arch mold. A method of using a head frame to position the pieces of bones during maxillofacial or cranio-facial surgery is also provided.

The invention relates to a navigation system for dental and cranio-maxillofacial surgery, comprising a surgical handpiece (2), an imaging unit (4) which is movably attached to the surgical handpiece (2), and a marker member (6; 44, 46) which is attachable to a cranial bone, a facial bone (26), a tooth or teeth of a patient. The marker member (6; 44, 46) comprises a plurality of marker elements (8, 10; 46) which are detectable by the imaging unit (4). Further, the invention relates to a positioning tool (40) for use with the navigation system, wherein the positioning tool (40) is configured for positioning the marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth and comprises a die element (42) and the marker member (44, 46). The marker member (44, 46) comprises a deformable material (44), the deformable material (44) is releasably received in the die element (42) and the plurality of marker elements (46) are arranged on a surface of the deformable material (44) which faces the die element (42), The invention further relates to a navigation method for dental and craniomaxillofacial surgery using the navigation system and to a method of positioning a marker member (44, 46) on a patient's cranial bone, facial bone (26), tooth or teeth using the positioning tool (40).

The invention discloses a covering device for an oral and maxillofacial surgery operation. The covering device comprises two mutually parallel baseplates and a face mask, wherein upright rods perpendicular to the surface of each baseplate are arranged at the two ends on the surface of the baseplate; the upright rods are telescopic; the top ends of the upright rods at the two ends of each baseplate are connected through a cross rod; the side surface of each cross rod is sleeved by rod sleeves; a connecting rod is welded on the side surface of each rod sleeve; the end, away from each rod sleeve, of the corresponding connecting rod is connected with the side surface of the face mask; the front end of the face mask is flat; an arc-shaped groove is formed in the bottom in the front of the face mask; a mounting groove is formed in the upper surface on the back side of the face mask; an arc-shaped glass plate is mounted in the mounting groove; a first guide tube and a second guide tube are respectively arranged on the left side of the face mask in a penetrating manner; the first guide tube is communicated with a humidifier through a hose. According to the covering device, the use is convenient and can be repeated, the resources can be saved, the stability of a patient in the operation can be improved, and the operation can be normally performed.

The invention provides an iodine-loaded titanium alloy implant with functions of resisting bacteria and promoting osteogenic differentiation and mineralization, and a preparation method of the iodine-loaded titanium alloy implant. According to the preparation method, an iodine coating is fixed to a titanium alloy through a covalent grafting and redox reaction method, the prepared iodine coating titanium sheet shows antibacterial performance, can promote osteogenic differentiation of bone marrow mesenchymal stem cells, and can promote generation of a calcium phosphorylation layer in simulated body fluid. The preparation process provided by the invention is simple and feasible, has the advantages of high efficiency, low cost and good repeatability, and can effectively improve clinical defects of an existing titanium alloy implant applied to the orthopedics department, the oral and maxillofacial surgery department and the neurosurgery department can be effectively overcome, so that the occurrence rate of postoperative early infection after the titanium alloy implant is implanted into a body can be reduced, and related complications such as implant looseness caused by excessive inflammatory reaction is reduced.

A head frame apparatus is secured to a human head during maxillofacial surgery and includes devices to easily position and secure an endotracheal (breathing) tube and an anesthesia delivery circuit for the patient that reduces the likelihood that the flow of oxygen through the tube is restricted thereby reducing the risk of severe injury or death. The head frame apparatus also includes a removable reference indicator, which may be easily attached and removed while identifying a reference point of the patient's face. Also the reference indicator includes a universal joint and pointer with an attached ruler. A transport apparatus positions multiple preset reference indicators and allows for preoperative transportation and removal, while protecting the preset reference indicators from inadvertent adjustment. A bendable reference indicator used in an articulator for preoperative modeling allows for easily identifying reference points in a cast model. An orbiting segment apparatus positions a portion of a cast of a jaw in relation to a condyle ball of the articulator.

The invention discloses a tumor cutting device for the oral and maxillofacial surgery. The device comprises a supporting plate, locking universal wheels are arranged on the lower surface of the supporting plate, and a fourth electric retractable rod is arranged at the left side of the upper surface of the supporting plate; an operation panel is arranged on the upper end face of the fourth electricretractable rod, an arc supporting plate is arranged at the left side of the upper surface of the operation panel, and a first electric retractable rod is rotatably connected to the supporting platethrough a bearing which is arranged in the middle of the upper surface of the supporting plate; a second gear sleeves the lower end of the outer side face of the first electric retractable rod, a speed reducer is arranged at the end, close to the first electric retractable rod, of the upper surface of the supporting plate, and a motor is arranged on an input shaft of the speed reducer. The tumor cutting device for the oral and maxillofacial surgery is compact in structure, convenient to use and easy to operate, and the tumor of the occlusal surface of the oval cavity of a patient can be quickly cut off; through arrangement of a medicine storage box, medicine is stored and placed conveniently; through arrangement of an elastic fixing band, the head of the patient is fixed conveniently; through arrangement of a waste can, medical waste is collected conveniently.

The various embodiments of the present invention provide an inferior alveolar nerve (IAN) protector instrument for proper protection of neurovascular bundle and to prevent the traumatic injuries during oral and maxillofacial surgeries. The IAN protector instrument made of stainless steel has a shank, a blade and a handle. The shank is formed to serve as a soft tissue flap retractor while supporting the blade. The handle is designed with a finger rest for more control and in the pear shape for palm grasp. The shank is bent twice at 120 degrees. The blade is curved with a radius of curvature equal to ⅙-⅛ of a complete circle. The dissecting edge and both lateral line angles are rounded to avoid untoward cutting. The instrument is designed separately for right and left sides of the mouth.

The invention discloses a fixing false tooth false gingiva attachment body and a manufacturing method thereof. The fixing false tooth false gingiva attachment body includes a periodontal obstructing device, fixing false teeth, an attachment body and attachment body connecting mechanisms; the periodontal obstructing device combines with the attachment body connecting mechanisms; the fixing false teeth combines with the attachment body connecting mechanisms; and the periodontal obstructing device combining with the attachment body connecting mechanisms is connected to the fixing false teeth combining with the attachment body connecting mechanisms through the attachment body; The manufacturing method includes preparing crown and bridge prosthesis having the attachment body connecting mechanisms, molding in an oral cavity to form an alveolar bone defect zone model, finishing the model, demolding, placing the negative pole and positive pole of the attachment body, performing mold reversing,performing injection molding, performing polishing, etc. The problems that the periodontal obstructing device (false gingiva) and the fixing false teeth cannot be worn in the same time can be solved;the fixing false tooth false gingiva attachment body has advantages which the periodontal obstructing device and the fixing false tooth restoration have; operation wound brought by traditional oral and maxillofacial surgery bone grafting can be reduced; and the fixing false tooth false gingiva attachment body is accurate in molding, economical in price and comfortable and convenient to wear.

The invention discloses a dual-polarity plasma operation electrode for maxillofacial surgery. The dual-polarity plasma operation electrode comprises a handle. One side of the handle is provided with an outer layer sheath. An outer layer tool bar is inserted into the outer layer sheath. A middle layer sheath is sleeved with the outer layer tool bar. A middle layer tool bar is inserted in the middle layer sheath. An inner layer sheath is sleeved with the middle layer tool bar. An inner electrode matched with the handle is inserted in the inner layer sheath. The dual-polarity plasma operation electrode has the advantages that it is effectively ensured that dual-polarity plasma cutting and ablation are realized under the quite small diameter condition, precise excision and hole-forming ablation treatment can be conducted on minimal lesions in narrow positions where a conventional electrode cannot conduct operations, the requirement for postoperative wound attractive appearance of maxillofacial surgery patients is met since the wound formed by the smaller diameter of the electrode is smaller, and the dual-polarity plasma operation electrode can be used for stripping off soft tissue in maxillofacial surgery and can be used for conducting precise excision and hole-forming ablation treatment on the minimal lesions in narrow positions in maxillofacial surgery.

The invention relates to a U-shaped suspension drag hook for oral endoscopic surgery. The drag hook comprises a U-shaped drag hook body and a suspension structure. The U-shaped drag hook body is of a U-shaped structure consisting of strip-shaped plates, one end of the U-shaped structure is an extending end, and the other end of the U-shaped structure is a suspension end. The suspension structure is connected with the suspension end of a U-shaped plate. One end of the U-shaped drag hook body extends into a separated tissue gap, the other end of the U-shaped drag hook body passes through the suspension structure. The tissue is pulled to form a gap by adjusting pulling of the suspension structure, and an endoscopic minimally invasive surgery is conducted through the gap.

The invention discloses an oral and maxillofacial surgery tumor resection device, and belongs to the technical field of medical instruments. The oral and maxillofacial surgery tumor resection device comprises a first handle and a second handle, one end of the first handle and one end of the second handle are fixedly provided with a first clamping head and a second clamping head respectively, the first clamping head and the second clamping head are each internally provided with a knife storage box, a box cover is arranged outside each knife storage box, a cutting knife is arranged inside each knife storage box through a connecting rope, and movable grooves are formed in the side walls of the first clamping head and the second clamping head. According to the tumor resection device, a clamping and cutting assembly capable of achieving automatic clamping is arranged on the tumor resection device, during cutting, the device is directly rotated, effective girdling of a tumor is completed, the included angle between the first clamping head and the second clamping head is gradually reduced according to the cutting amount, the design is reasonable and ingenious, automatic clamping and cutting treatment of tumor tissue is achieved, the stability of tumor tissue cutting is effectively guaranteed, meanwhile, the operation difficulty of the device is lowered, the operation difficulty is lowered, and the operation effect is improved.

The invention relates to a simulation device for scalp expansion transplantation. The device comprises a head prosthesis, the head prosthesis is covered with a covering, a plurality of expanders which can be controlled in size and shape are arranged between the head prosthesis and the covering, and water inlets are formed in the expanders. Before a doctor carries out surgery on a patient, the doctor can make the expanders and place the expanders at the corresponding position of the simulation device according to the specific condition of the patient, then, hot water is injected into the expanders so that the expanders can expand to the needed sizes, and the doctor can simulate surgery operation on the device after the expanders are cooled. The success rate of operations can be increased, the operation time can be shortened, the pain of the patient can be relieved, secondary injury is avoided, the device can be used for basic skill training of undergraduate students of stomatology, grassroots doctors of oral surgery, doctors in further education, graduate students of oral and maxillofacial surgery and the like, preoperative simulation deign devices can be provided for various complex soft facial tissue operations, and the operation result is guaranteed.

The invention relates to the technical field of medical instruments for oral and maxillofacial surgery, in particular to an in-position guide plate applied to multi-segment fibula double-stack reconstruction of the mandible, aims at solving the problem in the prior art that the height of a single-layer segment of fibulas after transplantation cannot help a patient in rehabilitation of the occlusalchewing function on the basis of rehabilitation of the appearance of the patient subsequently. The in-position guide plate applied to multi-segment fibula double-stack reconstruction of the mandibleis technically characterized by comprising a first guide plate and a second guide plate, wherein the first guide plate is located above the second guide plate, the inner side of the first guide plateand the inner side of the second guide plate are provided with arc-shaped grooves for cut fibula segments to be placed after double stacking, the arc-shaped grooves are closely fit with the surface ofthe fibulas, and the first guide plate and the second guide plate are symmetrically provided with retention holes. The mandibular reconstruction operation is completed through the digitally designedguide plate, and the guide plate is more perfect in appearance and can functionally achieve a desired effect.

The invention discloses a head-wrapping towel used in general anesthesia for oral and maxillofacial surgery. The head-wrapping towel includes a triangle towel, a connection mechanism and a limit mechanism; and the triangle towel is provided with the connection mechanism, the triangle towel is provided with the limit mechanism, the connection mechanism includes a towel folding indication center line, a towel folding indication horizontal line, head circumference fixing stickers, a forehead protection pad and a rolled towel fixing sticker, and the towel folding indication center line is arrangedat the midpoint of the front of the triangle towel. Compared with the prior art, the head-wrapping towel provided by the invention has the following beneficial effects: the triangle towel, the towelfolding indication center line, the towel folding indication horizontal line, the head circumference fixing stickers, the forehead protection pad, the rolled towel fixing sticker, fixing blocks and nasal cannula fixing buckles cooperate with one another to realize the head-wrapping towel used in the general anesthesia for the oral and maxillofacial surgery, the head-wrapping towel is simple in structure and convenient to use, has a good head wrapping effect, and can be sterilized at high temperature, fix a nasal cannula and protect nose wings, so that the practicality and applicability of thehead-wrapping towel are improved, and the head-wrapping towel brings great convenience to users.

The present disclosure is directed to a customizable distractor for oral and maxillofacial surgery and a system and method for designing and making the same. The distractor includes a steering apparatus that is movable along the helical-shaped distraction path to create gap between the first and second bone segments, an anchoring member for coupling the steering apparatus a first and second bone segment, and a distraction drive mechanism is used to drive movement of the steering apparatus along the distraction path.

The invention discloses a dilator for oral and maxillofacial surgery, and relates to the technical field of medical mouth gags, the dilator comprises a mounting bottom plate and two mounting blocks, the surface of the mounting bottom plate is provided with a mounting hole, the surface of the mounting bottom plate is fixedly connected with a headrest, the surface of each mounting block is fixedly connected with a lower bite plate, and the inner wall of each mounting block is fixedly connected with a limiting rod; the surface of the limiting rod is slidably sleeved with a transmission bent rod, the inner wall of the transmission bent rod and the surface of the limiting rod are jointly and fixedly connected with a first spring, and the surface of the mounting block is provided with a first through hole allowing the transmission bent rod to penetrate out and slidably connected with the transmission bent rod. Through the mutual cooperation of the structures, the mouth distraction device has the effects that the mouth distraction device is suitable for being used by patients of different body types, the mouth distraction degree is controlled by the patient, the comfort degree of the patient is higher, the phenomena of chin dislocation or cramp and the like of the patient are effectively avoided, and the mouth can be manually adjusted for the patient incapable of opening the mouth by himself/herself.

The invention discloses a dilator for oral and maxillofacial surgery. The dilator comprises a movable frame, a supporting frame and an adjusting box, scale marks are arranged on the front face of theadjusting box, a two-way threaded lead screw is movably installed in the adjusting box, a first threaded sleeve part is movably installed on the two-way threaded lead screw, the movable frame is fixedly installed at the top of the limiting base, the supporting frame is movably installed on the outer side of the movable frame, an upper supporting base is movably installed on the back face of the movable frame through a threaded rod, and a lower supporting base is movably installed at the bottom of the upper supporting base. A bidirectional threaded screw rod is movably installed in the adjusting box, the bidirectional threaded screw rod is rotated to drive a movable frame to relatively move, a pointer is matched with scale marks, the opening distance can be conveniently mastered, and the lower supporting base is movably installed at the bottom of the upper supporting base, the patient can occlude on the upper supporting base and the lower supporting base and is not easy to fall off so that the operation is convenient and quick.

The invention relates to the technical field of tooth trimming devices, and discloses a tooth trimming device for oral and maxillofacial surgery, the tooth trimming device comprises a fixed handle, arc-shaped lifting grooves are formed in the upper parts of the front surface and the rear surface of the fixed handle, hollow columns are slidably connected to the inner sides of the arc-shaped lifting grooves, annular grooves are formed in the inner sides of the hollow columns, and the inner sides of the annular grooves are connected with the arc-shaped lifting grooves. A cylinder is rotationally connected into the hollow column, and a plurality of balls are slidably connected to the position, located on the inner side of the annular groove, of the outer side wall of the cylinder. During use, the fixed handle is held by a hand, starting of the micro motor is controlled by starting a switch of a power supply, so that the micro motor drives the grinding wheel to rotate, teeth are conveniently ground and trimmed, and the mounting block rotates in the hollow column through the cylinder and slides in the arc-shaped lifting groove in cooperation with the hollow column; the grinding wheel can better grind the teeth according to the distribution of the teeth in a rotating and lifting manner, and the teeth can be automatically adjusted.

The invention discloses a tumor cutting-off device for oral and maxillofacial surgery. The device comprises a disinfection cabinet. A cabinet door is formed in the front face of the disinfection cabinet, multiple scalpels are arranged in the disinfection cabinet, an image displayer is arranged on the top of the disinfection cabinet, a signal transmission line is connected to the image displayer, and a handheld rod is arranged at the end, away from the image displayer, of the signal transmission line. According to the tumor cutting-off device for the oral and maxillofacial surgery, the scalpelsare used for cutting off tumors of the oral and maxillofacial surgery, the direction of an image probe can be adjusted according to actual requirements, the working range of the image probe is widened, thus, more precise image videos can be provided, a doctor can more precisely control the scalpels, and then the doctor can better perform surgical operation. By means of the disinfection cabinet, the scalpels can be conveniently disinfected at any time; by means of universal wheels, the whole device can be conveniently moved by people, and the device is suitable for use and popularization.