49 results about "Maxillofacial surgery department" patented technology

The invention relates to a biocompatible bleed-stopping and bone healing promoting material and a preparation method thereof. The material is applied to the bone surface or bone section of a human body or an animal, and is characterized in that the biocompatible bleed-stopping and bone healing promoting material is modified starch prepared by modifying natural starch serving as a raw material, and comprises one or more than two of modified starch granules, modified starch sponges, modified starch films, modified starch foams or modified starch glues, wherein the molecular weight of the modified starch is 15,000 to 10,000,000, and the water absorption rate is 1 to 100 times; in the natural starch serving as the raw material, the content of the amylopectin is at least no less than 70 percent of the total amount of the raw material. The invention fulfills the aim of stopping bleeding through direct spraying, daubing and pasting the biocompatible bleed-stopping and bone healing promoting material to touch the bone bleeding surface of wound; meanwhile, the biocompatible bleed-stopping and bone healing promoting material has a function of promoting bone healing, and can be used in the bleed stopping in the sternotomy of Cardio-Thoracic Surgery, spinal surgeries and joint surgeries of orthopedics department, Craniotomy and maxillo-facial surgery and the bleed stopping in the process of trauma care.

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.

The invention discloses a jaw bone positioning system and method for maxillofacial surgery. The system comprises a personalized jaw fork, a registration frame, a reference frame, a mechanical arm anda control module, and the control module can receive pose information from the registration frame, the reference frame and the like and three-dimensional data of a target object and can control the mechanical arm to position a jaw bone block needing to be positioned at the target position. The application of the system is beneficial to accurate implementation of surgery, the safety and controllability of the surgery are improved, deviation caused by human hands and subjective judgment errors in the operation is avoided, and the surgery efficiency is improved. The jaw bone positioning method disclosed by the invention has the effect corresponding to that of the jaw bone positioning system.

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.

The invention discloses an oral and maxillofacial surgical distractor, which includes a dental distraction device. The dental distraction device is movably connected with one end of a short rod. The other end of the short rod and a first connecting rod are fixedly connected through an undercut area of a buckle device. One side of the first connecting rod is welded with one end of a lip-cheek expansion device, one side of which is provided with a plastic cushion. The other end of the lip-cheek expansion device is welded with a second connecting rod. The second connecting rod and a first supporting adjustable lever are welded. One end of the first supporting adjustable lever is welded with one end of a second supporting adjustable lever. The other end of the first supporting adjustable leveris vertically welded with one end of a first spring lever. The other end of the second supporting adjustable lever is welded with one end of a second spring lever, the other end of which is welded with the other end of the first spring lever. The bottom ends of the second supporting adjustable lever and the first spring lever are equipped with a same dental distraction device and a same lip-cheekexpansion device as the top end. The oral and maxillofacial surgical distractor of the invention is simple to operate and has a good fixing effect.

The invention discloses a drainage tube used in oromaxillofacial surgery gap infection abscess incision drainage. The drainage tube comprises a drainage tube body, wherein a connecting mechanism usedin cooperation with the drainage tube body is fixedly installed at the bottom end of the drainage tube body; the drainage tube body comprises a center body, a round blunt shape, a supporting part anda drainage hole; the top end of the center body is arranged to be the round blunt shape; and the supporting part matched with the center body is fixedly connected to the surface of the center body. According to the drainage tube, through cooperation of the center body, the round blunt shape, the supporting part, the drainage hole, a fixing lantern ring, an elastic rubber block, a connecting hole and an arc-shaped part, the drainage tube used in oromaxillofacial surgery gap infection abscess incision drainage is achieved, use is convenient, the drainage effect is good, and the problems that a traditional drainage tube is likely to be blocked by blood clots and necrotic tissue, flushing and drainage are not smooth in postoperative treatment, and then the treatment effect is affected can be avoided.

The invention belongs to the technical field of oral medical machinery, and particularly relates to an oral and maxillofacial surgery tumor excision device. The device comprises a pollution discharge mechanism, an endoscope, a mouth gag, a scalpel and a surgical clamp. The pollution discharge mechanism comprises an air pump and an air pipe; one end of the air pipe is connected with the air pump, and the other end is placed in the oral cavity; the device further comprises a cushion block, a disc, a motor and a controller. The cushion block is arranged to be in a U shape, an opening of the cushion block is upward, the cushion block is clamped on the neck, and the head sleeve is arranged beside the cushion block. The head sleeve is composed of two elastic bands. The two elastic bands are vertically connected, and one of the elastic bands is connected end to end. The motor drives the sliding block to move along the sliding rod, the sliding block and the screw rod enable the disc to abut against the cheek side of a patient, and therefore the stability of tumors on the oral and maxillofacial surfaces close to the cheek side in the excision process is improved, and then the excision difficulty of the tumors on the oral and maxillofacial surfaces close to the cheek side is lowered; meanwhile, the efficiency and the success rate of excising tumors on the oral and maxillofacial surfaces by workers are improved.

The invention provides an oral care device used after oral and maxillofacial surgery, and relates to the technical field of medical instruments. The oral care device used after oral and maxillofacialsurgery comprises a medical rubber sheet and an occlusion body, a square hole is formed in the middle of the upper side wall of the medical rubber sheet, a middle protrusion of the occlusion body is slidably connected with the square hole, two conical grooves are formed in the upper surface of the medical rubber sheet, and a conical protrusion is arranged on the lower surface of the occlusion body. The conical protrusions are connected with the conical grooves in a sliding mode, and steel hoop connecting grooves are formed in the positions, located on the edges of the two sides, of the upper surface of the meshing body. An outer cylinder drives the connecting plate and the extrusion teeth to press a yarn roll or a cotton ball into the tooth extraction position through the screws, a patientor a doctor does not need to press the yarn roll or the cotton ball for a long time, discomfort of the patient is reduced, ventilation is conducted through the ventilation grooves and the ventilationholes, and it can be guaranteed that the tooth extraction position has good breathability; and the medical rubber sheet and the occlusion body are connected to two sides of the tooth extraction position, so that a patient can normally eat.

The invention discloses a dental operation real-time auxiliary system based on augmented reality three-dimensional imaging, wherein based on a medical image system, a three-dimensional reconstruction module, an operation planning module, a matching positioning module, a motion capture system and an AR display system for assisting in the whole operation process, the real-time three-dimensional display and dynamic capture tracking are realized; and when the body position or tissue of a patient moves, such as head shaking and mouth opening, the position of the three-dimensional virtual image can be changed in real time, so that the complete attaching effect is achieved, the three-dimensional real image and the three-dimensional virtual image are displayed on the same interface in real time through the AR display system at the same time, and the perspective function can be achieved in the operation process; in the operation process, the focus part can be found more easily, and an ideal implantation site or an ideal incision and excision angle direction can be found more easily. Compared with the traditional operation, the auxiliary system provided by the invention has the advantage that the precision is higher, and the requirement of the dental department and the maxillofacial surgery on the precision is very high.

The invention discloses a tumor clamping device for the oral and maxillofacial surgery, which comprises a supporting device and a clamping device, the supporting device comprises two supporting columns and two mounting strips, the two supporting columns are oppositely arranged in the left-right direction, the front surfaces of the two supporting columns are each provided with two connecting pieces which are oppositely arranged in the up-down direction, the two mounting strips are oppositely arranged in the up-down direction, the two ends of the two mounting strips are connected with the front ends of the connecting pieces respectively, an adjusting column is vertically arranged between the two mounting strips and can slide in the length direction of the mounting strips, a mounting piece is arranged on the outer surface of the middle of the adjusting column, the clamping device comprises an operating rod, an adsorption assembly and a clamping assembly, the operating rod is arranged on the mounting piece in a front-back moving mode, the adsorption assembly is arranged in the middle of the operating rod in a front-back adjustable mode and used for adsorbing a tumor, and the clamping assembly is arranged on the periphery of the adsorption assembly in an opening-closing mode and used for clamping and fixing the tumor. The tumor clamping device is convenient to use, stable in clamping, high in practicability, wide in applicability and good in using effect.

The invention discloses a mandibular ascending branch inner side drag hook special for maxillofacial surgery and relates to the technical field of medical treatment. The mandibular ascending branch inner side drag hook comprises an L-shaped grab handle and an end rod, an angle adjusting mechanism is mounted on one side of the L-shaped grab handle, an extension rod is mounted on one side of the angle adjusting mechanism, a locking nut is connected to one side of the extension rod, a supporting rod is connected to one side of the locking nut, an inner groove is formed in the supporting rod, an adjusting nut is arranged in the inner groove, a connecting screw rod penetrates through the adjusting nut, and an auxiliary lighting mechanism is installed on one side of the connecting screw rod. Themandibular ascending branch inner side drag hook is provided with an end rod, a bent hook and a supporting rod. The arc-shaped structure of the end rod can effectively adapt to the internal conditionof the oral cavity, the hook can hook the lower jaw ascending branch to expose the operation field, the inferior alveolar nerve can be prevented from being damaged, and the integrated structure of the end rod, the hook and the supporting rod can improve the convenience of force application.

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.

Exemplary cutting and alignment guide assemblies for use in microsurgical, plastic surgical, otolaryngological, maxillofacial, orthopedic, dental, or other surgical procedures include a first section configured to engage a first bone graft section, a second section configured to engage a second bone graft section, a first fixation mechanism configured to couple the first section with the first bone graft section, and a second fixation mechanism configured to couple the second section with the second bone graft section. The first section and the second section can be coupled via a hinge mechanism. Neo-mandible assemblies for implantation at a native mandibular defect of a patient can include a cutting and alignment guide coupled with one or more bone graft sections. In some cases, bone graft sections include bone segments from a fibula of the patient.

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 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 relates to a spreader, in particular to a spreader for oral and maxillofacial surgery. According to the dilator for the oral and maxillofacial surgery, the upper jaw and the lower jaw of a patient can be supported, the oral cavity of the patient can be prevented from being hurt by sharp objects, and the distraction range can be conveniently adjusted. The dilator for the oral and maxillofacial surgery comprises a first cushion block, a second cushion block, a guide mechanism, an up-down distraction mechanism and the like, the first cushion block and the second cushion block are arranged up and down, and the guide mechanism used for guiding is arranged between the first cushion block and the second cushion block. And the guide mechanism is provided with an up-down opening mechanism for assisting the opening of the oral cavity of the patient. The upper jaw and the lower jaw of a patient can be supported through the first cushion block and the second cushion block, the oral cavity of the patient can be prevented from being hurt by sharp objects, the opening range of the oral cavity of the patient can be conveniently adjusted by rotating the screw rod, and a doctor does not need to hold the oral cavity for a long time.

The invention provides a maxillofacial surgery auxiliary fixator which comprises an elastic supporting plate, tooth bases are arranged at the two ends of the elastic supporting plate, tooth connecting sleeves are arranged on the tooth bases, the tooth connecting sleeves are used for covering the outer walls of teeth, and during use, the two tooth connecting sleeves are used for being connected with the teeth of the upper jaw and the lower jaw of the oral cavity respectively; the elastic supporting plate is located in the oral cavity and is bent towards the far cheek side. Through the arrangement of the structure of the elastic supporting plate and the tooth base, and the elastic supporting plate is located in the oral cavity and bent towards the far buccal side, the effects of fixing the posture of the oral cavity, not obstructing operation and reducing shielding can be achieved. In a preferable scheme, the cheek support can support the cheek in a non-invasive mode, and the position of the cheek support can be conveniently adjusted.