17 results about "TOOTH EXTRACTIONS" patented technology

This invention discloses a method for preparing biomimetic calcium phosphate particles carrying type III recombinant human collagen, relating to the field of new biomedical materials. The particle formulation, by mass percentage, contains 50%-90% hydroxyapatite and 10%-50% type III recombinant human collagen. The preparation process involves artificially synthesizing hydroxyapatite precipitate, then compounding it with type III recombinant human collagen. The compounded material is then spread, naturally dried, crushed, and sieved to form particles. The resulting particles have a uniform and controllable particle size. When mixed with blood or water, they can quickly form a high-viscosity, malleable, and stable filling material, directly adapting to the site preservation requirements of alveolar sockets after tooth extraction. The advantages are: the degradation rate of these particles precisely matches the bone regeneration rate after site preservation surgery, efficiently guiding bone tissue regeneration while significantly shortening the waiting period for implantation after tooth extraction. This solves the clinical promotion difficulties caused by the long waiting period and complex operation of site preservation surgery, contributing to the widespread application of this technology in oral clinical practice.

The utility model relates to medical instrument technical field especially is involved in tooth forceps, including the first handle and second handle of split type design, the first handle front end is connected with the first bill, the second handle front end is connected with the second bill, and the first bill and the second bill are articulated through the fulcrum pivot between, be provided with the connecting rod adjusting mechanism for adjusting the fulcrum pivot position on the first handle, and the connecting rod adjusting mechanism includes with slide rail assembly and multilink linkage assembly, and slide rail assembly extends along the first handle inner surface axial direction, and slide rail assembly and multilink linkage assembly one end swing joint, multilink linkage assembly is connected between the fulcrum bearing and slide rail assembly, and one end of multilink linkage assembly is fixed on the second handle, the utility model discloses through setting adjustable clamping fulcrum structure, realizes the adjustment to the mouthful of clamping fulcrum position, to adapt to the anatomical form of different tooth root, reduces the risk of crown fragmentation, and promotes the efficiency and safety of tooth extraction operation.

The application provides tooth extraction socket filling hemostatic material and a preparation method thereof, and relates to the technical field of tissue repair materials.The tooth extraction socket filling hemostatic material provided by the application comprises the following components in parts by mass: bioactive ceramic powder 0.1-10 parts, glycerol 0.1-4 parts, starch 2-10 parts, solidification liquid 0.01-3 parts and plasticizing agent 0.01-5 parts.In the tooth extraction socket filling hemostatic material, the molecular chain of the starch is significantly stretched after the starch is infiltrated by glycerol rich in hydrogen bonds, so that the amount of exposed hydroxyl groups is increased, the recruitment of blood cells is accelerated, the formation of blood clots is accelerated, and the adhesion strength of the material to the tissue is significantly increased.The addition amount of the bioactive ceramic powder, glycerol, starch, solidification liquid and plasticizing agent is controlled, so that the tooth extraction socket filling hemostatic material has the function of plasticity, rapid hemostasis can be realized, the wet adhesion is good, and stability can be maintained in the oral environment.

The application discloses a bone regeneration kit and implant system for immediate implantation, and belongs to the technical field of oral implant medical devices. The kit comprises a patient personalized component and a universal component; the patient personalized component comprises a segmented personalized abutment and a rigid barrier membrane, the abutment comprises, from top to bottom, a transgingival forming part, a titanium mesh fixing part and an implant connecting part, and the rigid barrier membrane is fixed to the titanium mesh fixing part through a mounting hole; the universal component comprises a plasma matrix preparation component and a bone crumb collector. The application further provides an implant system comprising the kit, an implant and a complete autologous plasma matrix bone block. The rigid barrier membrane is directly fixed to the abutment to form a three-level rigid support, and the titanium nail fixing is omitted; the transgingival forming part of the abutment is customized based on digital scanning to realize soft tissue simultaneous sealing and aesthetic shaping; the bone crumb collector scrapes autologous bone crumb from the bundle-shaped bone area of a tooth extraction socket, and the autologous bone crumb is mixed with autologous plasma matrix to form a bone block without adding exogenous materials. The application realizes the synergistic effect of rigid maintenance of bone space, complete autologous bone regeneration and soft tissue simultaneous forming.

The application discloses a protective structure for wisdom tooth extraction, which comprises a protective baffle, a first fixing part and a second fixing part. The protective baffle is arc-shaped. The first fixing part and the second fixing part are respectively arranged at two ends of the protective baffle. The first fixing part is suitable for connecting the gum at the back of the wisdom tooth, and the second fixing part is suitable for connecting any tooth. The protective structure can be stably and reliably fixed in the oral cavity, isolates the tooth extraction operation area from other parts in the oral cavity, limits the movement range of the tongue, avoids the tongue from extending into the operation area, thereby significantly reduces the risk of the tongue being injured by mistake in the operation, and provides effective protection for the tongue and surrounding tissues. Meanwhile, the protective structure can effectively block the oral mucus from entering the operation area, and provides a safer operation environment for the patient.

This utility model discloses an auxiliary cleaning frame for extraction forceps, relating to the field of medical device technology. It includes two symmetrical T-shaped seats, each with an I-shaped groove. A second telescopic rod and two first telescopic rods are connected between the two T-shaped seats. Multiple limiting sleeves are fitted onto the second telescopic rods. Each end of the first telescopic rod is fixedly connected to a locking block, which penetrates the I-shaped groove. The first telescopic rods and the two second telescopic rods work together to provide three-point support for the extraction forceps. The adjacent limiting sleeves further enable positioning of the forceps. The lengths of the first and second telescopic rods can be adjusted to accommodate different numbers of extraction forceps for support and cleaning. The height and spacing of the two first telescopic rods are also flexibly adjustable, making it suitable for supporting and cleaning extraction forceps of different sizes and models. It is highly adaptable and very convenient to use.

The application discloses a kind of based on real virtual constraint environment and biomechanics analysis's impacted wisdom tooth minimally invasive extraction intelligent surgical planning method and system, belong to oral medical computer-aided surgery technical field, including: obtaining the oral cavity data of patient oral cavity maxillofacial part, and utilize deep learning model to carry out automatic segmentation to oral cavity data, generate oral cavity maxillofacial three-dimensional model;Anatomical constraint parameters are extracted based on oral cavity maxillofacial three-dimensional model;Based on anatomical constraint parameters and operating space constraint parameters, the optimal global tooth extraction strategy is determined by strategy decision model;According to the global tooth extraction strategy, path planning is carried out, and the optimal extraction path for the whole or each tooth body segment after tooth is divided is generated;The optimal extraction path is converted into robot executable operation instruction sequence.Through three-dimensional modeling, anatomical constraint extraction, strategy decision and path planning, the intelligent surgical planning of impacted wisdom tooth minimally invasive extraction is realized.

This utility model relates to the field of auger machining technology and discloses a hydraulic cylinder-driven auger structure, including a base. A placement seat is fixedly installed inside the base extending to the top. A workpiece to be processed is placed outside the placement seat. A connecting seat is fixedly installed on the right side of the base. A driving mechanism is located on the right side of the connecting seat extending outside the base, and a auger mechanism is located on the right side of the connecting seat extending inside the base. This hydraulic cylinder-driven auger structure, through its driving mechanism, allows a sliding seat to slide via a hydraulic cylinder during use. This sliding seat then engages with the auger rod, feeding the workpiece. Simultaneously, a contact and limit switch structure determines the sequence of operation of the hydraulic cylinder and hydraulic motor. Furthermore, by placing the overall driving mechanism outside the base and the sliding seat inside the base, the overall size can be reduced.

The utility model discloses a kind of six-leaf spherical bone drill, it is related to medical instrument field, wherein, six-leaf spherical bone drill includes: front end spherical tool bit, middle straight rod body and rear end limiting connection structure composition, wherein, the front end spherical tool bit includes six-leaf helical cutting edge, the structure of helical cutting edge is spherical helix structure;The diameter of the front end spherical tool bit is D1, wherein, 1.60mm≤D1≤4.40mm;The helix angle of six-leaf helical cutting edge set in the front end spherical tool bit is angle1, wherein, 27°≤angle1≤33°;Six-leaf spherical bone drill provided by the utility model is used for the bone in fresh tooth extraction nest, uneven alveolar ridge top to take out bone mud can be used in periodontal surgery to cover exposed tooth root, assist tooth firmness;The bone mud removed can be used in implant surgery to increase, widen in operation area, cover exposed implant surface, improve the survival rate of implant.

The utility model discloses a training model for tooth extraction surface scratch operation, a training model for tooth extraction surface scratch operation, including the hinged seat of the rotation of certain angle, detachably install a pair of model base of simulating alveolar bone on the front end of hinged seat up and down symmetry, be equipped with tooth extraction nest in the position of corresponding human tooth on model base, be equipped with gum model of simulating gum on the outer package of model base, be equipped with the installation groove of corresponding communication tooth extraction nest bottom end on the outside surface of model base of corresponding human maxillary first molar, detachably install maxillary sinus bottom mucous membrane model spare in installation groove, and be equipped with granulation model spare in the bottom bonding of tooth extraction nest. The utility model is favorable to the direct view simulation demonstration periodontal damage situation, is favorable to the student and promptly discovers and corrects scratch operation, can improve the training effect of scratch operation.

This utility model discloses a replaceable sponge-headed toothbrush after tooth extraction, including a handle, a brush head, and bristles. The brush head is provided with bristles, and a U-shaped groove is formed at the end of the brush head away from the handle. A replaceable sponge cleaning pad is installed in the U-shaped groove, and the replaceable sponge cleaning pad has a U-shaped structure that is interference-fitted with the U-shaped groove. Side limit blocks are provided on both sides of the brush head, and front limit strips are provided at the top and bottom of the front end of the brush head. This replaceable sponge-headed toothbrush after tooth extraction avoids direct contact between the brush bristles and the wound by adding a replaceable sponge cleaning pad to the brush head, reducing the patient's fear. The sponge cleaning pad is made of medical-grade hemostatic sponge, which avoids bleeding and tearing caused by secondary contact of the toothbrush with the wound. The "replaceable" design ensures that the sponge pad can be replaced after use or periodically to maintain the hygiene of the toothbrush. It is easy to clean after use, and the openings in the side limit blocks make it easier to shake off water accumulated in the stabilized part by swinging the toothbrush.

This invention discloses a manual negative pressure saliva aspirator after tooth extraction, comprising: a mouth-holding structure and a negative pressure generating element; the mouth-holding structure includes an arc-shaped support base and a flexible suction element, the arc-shaped support base being for holding in the mouth, one end of the flexible suction element being located on the arc-shaped support base, and the other end of the flexible suction element extending along the direction of gravity and used to absorb saliva in the oral cavity; the negative pressure generating element is connected to the flexible suction element through a flow guiding structure and is used to aspirate saliva within the flexible suction element through negative pressure. The patient manually operates the negative pressure generating element to generate negative pressure, which is transmitted through the flow guiding structure to the closed cavity inside the flexible suction element, thereby aspirating the saliva absorbed by the flexible suction element and exiting it from the oral cavity. Throughout the aspiration process, the negative pressure is transmitted through direct contact between the flexible suction element and the saliva, rather than through atmospheric pressure within the oral cavity acting on the wound surface. Therefore, while effectively absorbing saliva, it avoids pulling on the wound due to negative pressure, thus preventing damage to the protective blood clot.

Conventionally, there are many types of forceps, so it may take time to distinguish or replace instruments during surgery. Trainees or inexperienced medical staff have difficulty distinguishing between the various forceps, which causes delays in surgery time or inconvenience to both the patient and the operator. Accordingly, the present invention comprises an extraction forceps designed to be deformable into a shape suitable for the upper jaw, lower jaw, and various tooth areas, comprising: a forceps head having a rotatable structure; a forceps head hinge having a structure to which the forceps head is coupled and which rotates the forceps head; and a forceps handle integrally connected to the forceps head hinge and which allows a user to grasp and open / close the forceps head.

The application discloses a wet-adhesion nanofiber composite membrane for promoting healing of tooth extraction sockets, a preparation method thereof and application thereof, and comprises the following steps: step one: dissolving a first material in an organic solvent, uniformly mixing to obtain a first solution; step two: dissolving a second material in deionized water and / or an organic solvent, uniformly mixing to obtain a second solution; step three: using an electrospinning technology, electrospinning the first solution in a first syringe to prepare an outer nanofiber membrane; electrospinning the second solution in a second syringe to directly form an inner nanofiber membrane on the surface of the outer nanofiber membrane, and obtain the wet-adhesion nanofiber composite membrane; wherein the first material at least comprises any one of thermoplastic polyurethane and polyacrylonitrile; the second material at least comprises polyacrylic acid; the voltage used in the electrospinning is 10kV-25kV, the receiving distance is 10cm-20cm, and the sample injection rate is 0.3mL / h-1.5mL / h. The wet-adhesion nanofiber composite membrane can promote rapid reformation of gingival epithelium and maintain stable morphology of alveolar ridges through guided bone integration.