37 results about "Bone dust" patented technology

Proposed is a vertebral cage including a body which is inserted between a vertebra and a neighboring vertebra, and is provided with a space part that can be filled with bone powder; a blade which is rotatably provided on an inner side surface of the body. The cage also includes a locking means which fixes the blade, which has or has not been rotated on the body, on the inner side surface of the body, wherein the locking means comprises fixing protrusions and groove parts which are provided on mutually facing surfaces of the body and the blade, and coupled to each other.

The invention discloses a body temperature responsive wet adhesive as well as a preparation method and application thereof in bone defect repair, and belongs to the technical field of preparation of bone defect repair materials. Carbon-carbon double bonds in methoxyethyl acrylate (MEA), N-isopropylacrylamide (NIP) and acrylic acid (AA) are subjected to a free radical polymerization reaction to generate a polymer chain, and a cross-linking agent containing metal cations is added for cross-linking. The body temperature responsive wet adhesive has a good wet adhesion effect and the ability of improving the stability of bone meal, and can solve the technical problem of bone substitute displacement caused by unstable fixation of a barrier membrane.

1. The name of the design product: dental bone powder conveyor. 2. The use of the design product: bone powder conveyor for dental use. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view.

The invention discloses a digital auxiliary PRF bone meal complex preparation method applied to periodontal minimally invasive surgery, belongs to the technical field of PRF bone meal complex preparation, and overcomes the defects that in the prior art, PRF bone meal complex and minimally invasive surgery combination is ineffective, and MIST curative effect improvement is limited due to poor adaptability of bone grafting materials. The method comprises the following steps: constructing a matched three-dimensional oral cavity model according to multi-source oral cavity data of a patient; reconstructing and cutting the three-dimensional oral cavity model to obtain an operation area surface data model; performing optimization and manufacturing adaptation processing on the surface data model of the operation area to obtain a three-dimensional digital model of the subbony pocket form female die; according to the three-dimensional digital model, preparing a subosseous pocket form female die, and preparing the PRF bone powder complex matched with the subosseous pocket in the subosseous pocket form female die.

The invention discloses a traditional Chinese medicine ingredient modified bone graft material and a preparation method thereof, and relates to the technical field of bone graft materials. The feed additive is prepared from the following raw materials: calcined bone meal and a traditional Chinese medicine extract, the traditional Chinese medicine extract comprises a radix salviae miltiorrhizae extract and / or a radix scutellariae extract. The preparation method comprises the following steps: preparing calcined bone meal, preparing simulated body fluid and preparing the modified bone graft material. The product material can be applied to a dental bone grafting material. The traditional Chinese medicine extract is loaded on the bone material, and the bone material is modified, so that the bone graft material with good biocompatibility, osteogenesis promoting capability and better osteogenesis induction potential can be obtained.

The application provides a ceramic raw material iron red glaze and a preparation method thereof, and belongs to the technical field of inorganic material preparation. The ceramic raw material iron red glaze comprises the following components in parts by weight: 15.5-17.5 parts of potash feldspar, 22.5-23.5 parts of soda feldspar, 7-8 parts of white kaolin in Panxi region, 14-18 parts of quartz, 6-7 parts of calcite, 10-12 parts of calcined talc, 10-12 parts of bone powder and 14-16 parts of vanadium titanium magnetite. The bone powder comprises the following components in percentage by mass: 0.85-2.35% of SiO2, 0.36-0.74% of Al2O3, 44.56-46.75% of CaO, 0.76-1.50% of MgO, 0.03-0.12% of K2O, 0.53-0.86% of Na2O, 0.12-0.14% of Fe2O3, 0.03-0.05% of TiO2, 36.76-48.79% of P2O5, and the balance of inevitable impurities. The iron red glaze provided by the application is bright and dynamic, rich in changes, and has yellow silk-like flow lines interspersed in the sheet of fire red color, which is colorful and makes the whole vessel have the quality of being rare, noble and dignified. The application is mainly used for tea bowls, cups and other tea utensils, and can also be used for bowls, plates, toys, ink stones and other living utensils.

The utility model relates to the technical field of bone fetchers, in particular to a bone fetcher for tooth implantation, which comprises a connecting rod, a clamping groove and a stop guide component, the clamping groove is arranged on the inner side of the connecting rod, the stop guide component is fixedly connected with the tail end of the lower side of the connecting rod and comprises a stop plate, and a clamping hole is arranged on the inner side of the stop plate. The guide limiting assembly comprises a clamping pin, a limiting clamping ring is fixedly connected to the tail end of the lower side of the clamping pin, a rubber ring is arranged on the inner side of the limiting clamping ring, a fixing rod is fixedly connected to the outer side of the lower end of the limiting clamping ring, and a guide limiting ring is fixedly connected to the tail end of the lower side of the fixing rod. According to the bone meal collecting and storing device, the device can adapt to work at different angles, the phenomenon of deviation and inclination of the stopping ring is avoided, the bone meal collecting and storing effect and the rotating performance of a drill bit are guaranteed, and therefore the efficiency and safety of a dental implant operation are improved.

The utility model discloses a 3D (three-dimensional) printing implant for oral implantation in the technical field of medical equipment, which comprises an implant structure, the implant structure comprises an implant body, the implant body is of a gradient pore net structure, a bioactive layer is arranged on the outer side of the implant body, and the bioactive layer is made of a transparent material. A bone meal attaching and guiding structure is arranged on the inner wall of a mesh hole of the implant body, a surface fixing structure is arranged on the surface of the implant body, and a bottom fixing structure is arranged at the bottom of the implant body. According to the utility model, the implant body is arranged into the net-shaped structure, and the bone meal attachment and guide structure is matched, so that the bone meal can be guided to directionally grow along the net-shaped pores, the traditional osteogenesis waiting stage is skipped, the implant implantation and bone increment are synchronously completed, and the damage to soft tissues caused by repeated bone meal filling and pressing operation is avoided.

The invention relates to the technical field of infusion bone repair materials, in particular to an infusion bone repair material and a production process thereof, the infusion bone repair material comprises alpha-calcium sulfate hemihydrate, allogeneic bone powder particles and a modified hyaluronic acid solution with the mass fraction of 2.5%; wherein the preparation process of the modified hyaluronic acid comprises the following steps: preparing methacrylated hyaluronic acid: stirring methacrylated hyaluronic acid and a poloxamer solution, and controlling the stirring time to be 10-30 minutes and the stirring temperature to be 20-25 DEG C, so as to obtain the poloxamer modified methacrylated hyaluronic acid; the preparation method comprises the following steps: carrying out reaction on poloxamer modified methacrylated hyaluronic acid and a solution of BMP-2-loaded mesoporous silica for 2 minutes under the condition of a rotating speed of 800 rpm to obtain modified hyaluronic acid; the infusible bone repair material has the effects of unification of high-strength support and low-resistance injection, matching of the material storage period and the osteogenesis process and bioactivity synergism.

The invention provides a preparation method and application of a digital plasma matrix bone block, and belongs to the technical field of medical materials. By combining a digital technology and a plasma matrix technology, the personalized plasma matrix bone block with regeneration activity and mechanical strength is immediately prepared in an operation according to the defect condition of a patient. Compared with a traditional bone regeneration scheme, the digital plasma matrix bone block can be shaped immediately in an operation and is matched with a defect area; in addition, the digital plasma matrix bone block has good mechanical strength, and the collapse problem after traditional bone meal transplantation or the exposure problem after a titanium mesh is applied can be avoided; more importantly, the digital plasma matrix bone block has good bone regeneration effects including bone conduction, bone induction, bone regeneration and the like. The digital plasma matrix bone block is more economical for a patient, is convenient for an operator to operate, has good biological safety, and provides a personalized solution for regeneration and repair of bone tissue defects.

The invention relates to a composite bone repair material as well as a preparation method and application thereof, the composite bone repair material is prepared from the following raw materials: composite bone meal, alpha-calcium sulfate hemihydrate and curing liquid, and the composite bone meal is prepared from the following raw materials: modified bioactive glass and polycitrate. The prepared composite bone repair material is moderate in degradation rate and can provide space maintenance and mechanical support effects for bone tissue repair, and the interface compatibility of the modified composite bone meal is improved.

The present invention provides a bone graft composite material and a manufacturing method therefor. The bone graft composite material is applied to wound repair of a user in orthopedic surgery and dental surgery, and is used to promote wound healing of the user, induce growth of an autologous bone cell of the user, and induce fusion of a transplanted bone of the user with the autologous bone cell. The bone graft composite material comprises a high molecular polymer, bone powder, and exosomes. Compared with the prior art, the bone graft composite material provided by the present invention has better osteoinductivity and compatibility, and can stably release biological factors, thereby promoting the repair and regeneration of bone.

The application discloses an ultrasonic probe structure and a method for detecting vascularization and osteogenesis of bone powder, and comprises a probe main body and a shell cover. The probe main body is detachably connected to the inside of the shell cover, the detection surface of the probe main body is exposed to the outside of the shell cover, and a baffle is detachably connected to the side wall of the shell cover and located on both sides of the detection surface of the probe main body. The probe main body shell cover combination device with added coupling agent is placed on the position of the patient's alveolar bone defect, the bilateral baffles are tightly attached to the inner and outer sides of the gums, the coupling agent is injected above the alveolar bone defect and is relatively fixed between the two baffles, the detection surface of the probe main body and the surrounding teeth, so that the loss of the coupling agent is avoided, air is prevented from entering between the detection surface and the bone defect, and the image quality is affected. In addition, the method for detecting the vascularization and osteogenesis of the bone powder after the bone powder is used for repairing the bone defect is provided, and the method has the advantages of non-invasion and non-radiation compared with the traditional imaging method.

A preparation method of a bone ash product relates to the technical field of funeral devices, and comprises the following steps: S1, grinding cremation bone ash by a ball mill, sieving by a 300-mesh sieve, and mixing 300-mesh bone meal with jade porcelain powder and silicate according to a certain proportion to prepare slurry; s2, a plaster mold is adopted for slip casting, a kiln is adopted for low-temperature primary firing for 10 hours at the temperature of 200 DEG C, and a product is taken out and cooled at the normal temperature; s3, brushing a metal coloring material on the product, putting the product into a kiln, calcining at the high temperature of 1200 DEG C for 15 hours, taking out the product, and cooling at normal temperature; and S4, glazing the product, putting the product into the kiln, continuously calcining for 10 hours at the high temperature of 1600 DEG C, reducing the temperature of the kiln to 800 DEG C, calcining for 5 hours, reducing the temperature of the kiln to 300 DEG C, calcining for 2 hours, taking out the product, and cooling to normal temperature. According to the invention, the bone ash is refined into a product, so that the problem that bone ash treatment modes (such as burial, seascattering and the like) are difficult to meet the requirement of retaining souvenirs of departed saints in some families is solved.

The invention discloses a 3D printing photocuring bone repair membrane and a preparation method thereof, the bone repair membrane is formed by photocuring 3D printing of a photocuring resin composition, the thickness of the bone repair membrane is 0.1-0.3 mm, and the bone repair membrane has a three-dimensional communicated pore structure; the light-cured resin composition comprises macromolecular resin, a reactive diluent and a photoinitiator, the mass ratio of the macromolecular resin to the reactive diluent is (0.5-3): 1, and the mass of the photoinitiator is 0.1%-10% of the mass of the macromolecular resin. The 3D printing light-cured bone repair film is used in cooperation with bone meal with a bone wound surface filling effect, can be tightly attached to the surface of the bone wound surface filled with the bone meal, does not need to be sutured and fixed, and simplifies the clinical operation process, so that the barrier effect is achieved, and the secondary injury risk of the wound surface is reduced; the bone repair membrane has good biocompatibility, controllable degradability and a three-dimensional communicated pore structure, can be matched with the bone tissue regeneration rate, is high in process controllability, can precisely regulate and control the structure and performance, and meets the bone tissue repair requirement.

The application discloses a kind of bone ash-based dense ceramics and its preparation method, the ceramic raw material comprises the bone ash 80~92 parts after pre-burning treatment according to weight fraction, crystal powder 8~20 parts;The crystal powder is obtained by melting reaction of cremated bone ash or bone powder and phosphoric acid under high temperature condition, and the crystal block is obtained after cooling, and then the crystal block is ground into powder.The crystal powder is used as the liquid phase of bone ash-based dense ceramics, and the preparation process includes bone ash pre-burning treatment, crystal powder preparation, bone ash and the crystal powder are uniformly mixed according to a certain proportion, and the bone ash-based dense ceramics is obtained by sintering at 750~950 DEG C after polishing and sieving and preforming.

The invention relates to the technical field of bone meal injectors, in particular to a recyclable bone meal injector which comprises an injection tube, a bone particle storage tube is detachably connected into the injection tube, a sealing mechanism is arranged in the bone particle storage tube and the injection tube jointly, and the bone particle storage tube is arranged in the sealing mechanism; the bone particle storage tube is arranged at one end of the injection tube in a penetrating mode, and an injection mechanism is arranged in the injection tube. According to the bone particle injection device, the filter suction cap and the injection head can be quickly mounted and dismounted according to needs, and the bone particle storage tube can be mounted according to needs, so that bone powder, normal saline and autoblood in the bone particle storage tube can be mixed through cooperation of the filter suction cap and the bone particle storage tube; the injection position can be quickly positioned through the injection head and the bent pipe fitting so that filling can be carried out, all the components in the device can be detached according to needs, cleaning and disinfection are facilitated, and recycling is facilitated.

The invention relates to the technical field of dental restoration, and provides a dental restoration planting bone powder filler which comprises a filling pipe, a material limiting ring is fixedly mounted at the bottom of the inner wall of the filling pipe, the bottom of the material limiting ring is flush with the bottom of the filling pipe, a discharging hole is formed in the middle of the material limiting ring, and a plug is arranged at the discharging hole; the pushing rod is arranged in the filling pipe, a blocking column matched with the discharging hole is fixedly installed at the bottom of the pushing rod, and the bottom of the blocking column is flush with the bottom of the filling pipe; the fixing ring is arranged at the bottom of the outer wall of the filling pipe in a sleeving manner, and a plurality of guide holes are formed in the peripheral surface of the fixing ring; the two sides of the annular air bag are fixedly connected with the upper side and the lower side of the fixing ring respectively, a plurality of guide rods are arranged in the annular air bag, the first ends of the guide rods are fixedly connected with the inner wall of the lower side of the annular air bag, and the second ends of the guide rods make sliding contact with the inner wall of the guide hole; and the control assembly is used for inflating or sucking air into the annular air bag.

This invention discloses a method for expanding the volume of a composite matrix, an osteogenic composition, and its applications. The components of this invention are entirely autologous, posing no risk of immune rejection or disease transmission. The composite matrix in the osteogenic composition provides a bone conduction scaffold, while the volume-expanding agent provides bone-inducing signals while simultaneously expanding the composite matrix, thus providing a dual osteogenic mechanism. This invention requires only a conventional centrifuge and sterile containers, making it suitable for outpatient surgery. It also eliminates the need to purchase expensive bone powder, offering advantages such as ease of operation and low cost. Furthermore, the materials of this invention exhibit good stability; the composite matrix, after being encapsulated by the volume-expanding agent, does not easily dissipate and conforms well to the defect morphology.

1. The name of the design product: bone powder delivery device. 2. The use of the design product: for dental delivery of bone powder. 3. The design features of the design product: in shape. 4. The picture or photo that best shows the design features: perspective view.

The application relates to a transcrestal maxillary sinus bottom lifting auxiliary bone grafting device and a working method thereof, and belongs to the technical field of medical devices. The device comprises a flaring device and a fixer. The flaring device comprises a hollow cylinder, a conical block and a cylindrical filling block which are sequentially arranged from top to bottom, the flaring device is funnel-shaped as a whole, and the hollow cylinder is symmetrically provided with fixing holes. The fixer comprises a connecting column, a nut, a sliding block, a positioning protrusion, two first connecting rods and two second connecting rods. The connecting column is provided with a thread at one end, the thread is provided with the nut, the other end of the connecting column is hingedly connected with the two second connecting rods, the sliding block is slidably sleeved on the connecting column, the two first connecting rods are respectively hingedly connected to the two second connecting rods, and the two second connecting rods are respectively provided with the positioning protrusions at the ends. The application can fully expose the bone defect position, ensure the filling position accuracy of the bone powder filling device, conveniently observe the bone powder filling amount, and improve the bone powder filling effect.

The application relates to a preparation method of a self-barrier oral bone powder and the preparation method, and relates to the technical field of medical treatment. The problems that there is no adhesion between particles in the existing GBR operation, the particles are relatively dispersed, are easy to be displaced, need to be combined with an oral repair film for joint use, and the operation requirement of a doctor is relatively high are solved. The preparation method comprises the following steps: mixing and ball milling calcium phosphate salt powder and photosensitive resin according to a proportion, and forming a slurry after the ball milling; printing a plurality of independent particles with a straight-through hole structure from the slurry through 3D printing technology; calcining the printed particles; mixing and loading the calcined particles and calcium sulfate hemihydrate powder into a booster with a porous filter head according to a proportion; and adding a liquid medium into the booster and uniformly mixing, so that a paste-shaped composite material which can be pushed out is prepared; the paste-shaped composite material has the effects of self-curing, forming a hard inorganic substance which cannot be moved, can act as a barrier film, is beneficial to cell ingrowth, and reduces the operation difficulty.

The utility model discloses a building recycled aggregate classification screening device which comprises an equipment body and an aggregate inlet, the aggregate inlet is connected to the top of the equipment body and communicated with the internal space of the equipment body, at least two sieve plate bodies are arranged in the equipment body and arranged in an inclined mode, and the sieve plate bodies are arranged in the equipment body. Each sieve plate main body comprises a protection plate and a sieve net, the sieve net is connected into the protection plate, each sieve plate main body is provided with a horizontal shaking assembly, each horizontal shaking assembly comprises an extrusion rod and a rotating disc which are connected to the bottom of the protection plate, and each rotating disc is provided with an arc-shaped surface; the extrusion rod and the rotating disc are both located at the higher end of the sieve plate body, the driving assembly is suitable for driving the rotating disc to rotate, then the arc-shaped face is driven to rotate so as to extrude the extrusion rod, and bone meal is evenly dispersed on the sieve net through left-right reciprocating shaking of the sieve plate; and the screening efficiency and quality are improved.

The invention belongs to the technical field of periodontal repair medical instruments, and particularly relates to a pair of three-dimensional viscous bone forming forceps for periodontal tissue regeneration, which comprises two forceps handles, a hinge piece and locking structures arranged at the tail ends of the forceps handles, the working ends of the two forceps handles are provided with detachable lip side viscous bone forming structures or tongue side forming structures. Each lip side viscous bone forming structure comprises a first arc-shaped concave block, a second arc-shaped concave block and a third arc-shaped concave block, wherein the first arc-shaped concave block is fixed to the end of one forceps handle through a screw; the first arc-shaped convex block is fixed to the end of the other clamp handle through a screw, the outer convex face of the first arc-shaped convex block is matched with the arc face of the first arc-shaped concave block in an inserted mode, and a first working groove and the like are formed in the face, close to the first arc-shaped convex block, of the first arc-shaped convex block. According to the three-dimensional-configuration viscous bone forming forceps, through physical property improvement (viscosity solidification) and shape presetting (dissecting to be matched with a groove type) of a bone grafting material, the three major pain points of bone meal collapse, insufficient increment of key sites and operation dependence on experience in a traditional PAOO operation are solved, and the bone increment accuracy and long-term stability are remarkably improved.

This invention discloses an injectable bone powder with anti-inflammatory biological activity, its preparation method, and its application. The bone powder is a hydrogel internally loaded with a hydroxyapatite composite material, wherein the hydroxyapatite composite material is hydroxyapatite with membrane vesicles coated on its surface; the membrane vesicles are derived from pulp-derived suppressor cells; the mass-to-volume ratio of the hydroxyapatite composite material to the hydrogel is 20-30%. This injectable bone powder with anti-inflammatory biological activity, containing membrane vesicles derived from pulp-derived suppressor cells coated on the surface of the hydroxyapatite, has biological effects that inhibit T cell proliferation and macrophage differentiation into osteoclasts, thus blocking the inflammatory environment, suppressing the inflammatory response, and promoting alveolar bone repair and regeneration.

The utility model relates to the technical field of medical instruments, and provides a bone meal container for oral surgery, which comprises a body and a filter bowl, the body is provided with a cavity with an open top end, the side surface of the body is provided with a through groove, the through groove comprises a first groove section and a second groove section which are communicated with each other, the first groove section extends along the vertical direction and penetrates through the top surface of the body, and the second groove section extends along the vertical direction. The second groove section is located at the top end of the first groove section and extends in the circumferential direction of the body, the bottom wall face of the second groove section is located above the bottom wall face of the first groove section, the first groove section and the second groove section are both communicated with the containing cavity, the filter bowl is provided with filter holes allowing liquid to pass through, the filter bowl is used for containing bone meal, and a handle is arranged on one side of the filter bowl. The handle penetrates through the through groove, and one end of the handle is located on the outer side of the body. Therefore, bone meal soaked in normal saline does not need to be transferred into another container, and waste can be reduced.

The invention discloses an AI-assisted bone powder implant for alveolar bone repair. The AI-assisted bone powder implant comprises a biodegradable integrated composite stent, a micro sensing unit, a piezoelectric micro pump, a micro processing unit and a micro battery, the integrated composite scaffold is of a bionic heterostructure formed through 3D printing and sequentially comprises a cancellous bone layer, a cortical bone layer and a soft tissue layer from bottom to top. A reserved cavity in which the piezoelectric micro pump, the micro processing unit and the micro battery are embedded is formed in the cancellous bone layer; the micro sensing unit is integrally formed on the surface of the cancellous bone layer through 3D printing, and at least comprises a micro pH sensor and a piezoelectric impedance composite sensor; the micro processing unit receives signals of the micro sensing unit, the signals are processed by the trained AI analysis model, a control instruction is generated to drive the piezoelectric micro pump to release medicine according to needs, and the micro battery is used for supplying power. According to the method, active monitoring and active and self-adaptive repairing can be performed without external intervention, and the predictability and stability of repairing quality are remarkably improved.

The invention discloses a preparation method of an allogeneic bone shaping material, which comprises the following steps: S1, bone pretreatment to obtain freeze-dried bone powder and demineralized bone powder; s2, bone gelatin extraction; s3, preparing an excipient, wherein the bone gelatin in the step S2 is added into water containing polyvinylpyrrolidone to be swelled; and S4, mixing the freeze-dried bone powder and the demineralized bone powder in the step S1 with the excipient in the step S3 in proportion to obtain the allogeneic bone shaping material. According to the preparation method, polyvinylpyrrolidone is added, the proportion of freeze-dried bone powder to demineralized bone powder in the mixed bone powder is adjusted, the degradation rate of the allogeneic bone powder can be adjusted, and the allogeneic bone powder can be effectively degraded on the basis that good bone induction and bone conduction performance of the allogeneic bone powder is reserved. And the material is endowed with good injectability and plasticity.

The invention discloses a surgical electric drill with a precise positioning function, and belongs to the technical field of medical instruments. The surgical electric drill comprises an electric drill shell, and through holes are symmetrically formed in the left and right sides of the lower end of the electric drill shell; an alternate cleaning and recycling mechanism is mounted in the electric drill shell; the alternate cleaning and recycling mechanism comprises a driving assembly and a movable assembly; the flushing hose is mounted in the left movable component; the suction hose is installed in the right movable assembly. A linkage blocking mechanism is installed on one side of the lower end of the electric drill shell and the movable assembly. The linkage blocking mechanism comprises an overturning sealing assembly and a linkage assembly. By means of the mode, in the drilling process, the device can flush and suck bone meal chippings on the surgical site in time, and the extra workload that medical workers need to take out an electric drill shell and then conduct flushing operation is avoided.

The embodiment of the utility model provides an alveolar bone chipping drill for dental implant, which comprises a straight-rod-shaped handle part, a drill bit body is arranged at the front end of the handle part, and a connecting part matched with external dental handpiece equipment is arranged at the tail end of the handle part; the drill bit body comprises a first cutting part and a second cutting part; the first cutting part and the second cutting part are coaxial; and the cutting radius of the first cutting part is different from the small cutting radius of the second cutting part. According to the alveolar bone chip taking drill for the dental implant, the alveolar bone can be drilled into a shape which is close to an implant and similar to a cone through the first cutting part and the second cutting part which are different in radius, so that the implanting of the cone-shaped implant is facilitated, and the positioning effect of the positioning drill bit on the drill bit body is improved; the annular cutting drill body located on the periphery of the positioning drill bit can effectively guarantee center positioning. And bone scraps can be effectively collected through the bone scrap storage cavity, and bone scrap loss is avoided.