56 results about "Implant surface" patented technology

The invention belongs to the technical field of biological implant materials, and discloses a medical titanium alloy implant surface modification method and application, and the medical titanium alloy implant surface modification method comprises the following steps: grinding and polishing a titanium alloy surface, and then carrying out ultrasonic cleaning and drying in ethanol; the titanium alloy is placed in multi-arc ion plating equipment, high-purity tantalum serves as a target material, and a tantalum coating is deposited on the surface of the titanium alloy; the surface of the titanium alloy is coated with photoresist, and then a micropore array is formed in the surface of the tantalum coating through the photoetching technology; the titanium alloy is placed in the electrolyte, a Ti plate serves as a cathode, a Ta plate serves as an anode, and hydroxyapatite is deposited in a porous structure through electrochemical deposition; and removing the photoresist to expose the tantalum coating, ultrasonically cleaning with deionized water, and drying. The titanium alloy implant provided by the invention has excellent corrosion resistance, biocompatibility and mechanical properties, and makes up for the deficiency of a single material, so that the titanium alloy implant subjected to surface modification has wider application.

The application provides a preparation method of a high-efficiency piezoelectric coating on a titanium implant surface. The preparation method of the application uses a hydrothermal treatment and an in-situ piezoelectric deposition technology to in-situ synthesize a nano strontium titanate-noble metal piezoelectric coating on the titanium implant surface. The coating can generate a piezoelectric potential and active oxygen through ultrasonic driving to degrade extracellular polymers and kill bacteria. In addition, the piezoelectric coating can also promote the osteogenic differentiation of bone marrow mesenchymal stem cells under piezoelectric stimulation, and finally realize the effects of bioactivity, long-acting drug-resistant bacteria and high-efficiency bone integration in the body. The application can provide a new surface treatment technology and research idea for controlling the drug-resistant bacteria infection on the implant surface, help to break through the limitations of the existing theory and technology in removing bacterial infection on the titanium implant surface, and provide beneficial guidance for the control of bacterial biofilm on other parts and the prevention and treatment of related infectious diseases.

To provide a simple method for hydrophilizing a surface of a dental implant body.SOLUTION: A method for hydrophilizing a surface of a dental implant body includes drying the implant body after immersing it in ozone nanobubble water. Even when the implant body is exposed to atmosphere before being immersed in the ozone nano-bubble water and a surface thereof becomes contaminated and hydrophobized by organic substances such as hydrocarbons in the atmosphere, the surface contaminants are decomposed by drying the implant body after immersion in the ozone nano-bubble water, to clean the surface as well as making the surface hydrophilic, thereby facilitating acquisition of osteointegration.SELECTED DRAWING: Figure 1

The present application relates to a kind of nasal ala base subperiosteal implant retention method, belong to plastic surgery medical instrument technical field.The present application provides a kind of nasal ala base subperiosteal implant soft tissue suspension retention method and its implant and system.The method includes: implant is placed into maxillary bone subperiosteal interstice, and implant fixed wing is fixed with the soft tissue anchor point such as alar base ligament of alar elevating lip muscle using drug-loaded degradable suture and is suspended and fixed.Implant surface is provided with the microporous structure of guiding tissue ingrowth, and is provided with the drug depot recess of filling load immunomodulator temperature-sensitive hydrogel.Postoperative healing process, suture is released under the action of tension to accelerate proangiogenic factor and promote local vascularization, and temperature-sensitive hydrogel slow-release immunomodulator induces macrophage to repair type polarization, and cooperatively promotes the biological chimeric fixation of implant and soft tissue.The present application can realize the double stable retention of implant, reduces postoperative displacement risk.

A method for treating the surface of a dental implant to impart surface roughness is disclosed. The method for treating the surface of a dental implant according to the present invention includes a first surface treatment step of forming grooves in a regular pattern on the entire or part of the implant surface using a laser, and a second surface treatment step of imparting roughness to the grooves and their surroundings through acid etching. The first surface treatment step may include a first laser treatment step of processing a plurality of first grooves that are continuous in a first direction and spaced apart in a second direction, and a second laser treatment step of processing a plurality of second grooves that are continuous in the second direction and spaced apart in the first direction, forming craters at each intersection between the first and second grooves.

The present invention relates to a device (1) for recording the use of one or more implants (8) inserted during surgery, the implants (8) having identifiers (10) on their implant surfaces (9). One or more implants are provided for surgery and can be used during said surgery. The device comprises a housing (2) having a housing interior (3) in which at least one light source (4) and at least one camera (5) are arranged for recording images of multiple implants (8) of a surgical set (6) before and after surgery, and an image evaluation device for evaluating images recorded before and after surgery by at least one camera (5) to identify one or more implants (8) inserted during surgery. According to the present invention, at least one light source (4) and at least one camera (5) are configured to reduce reflections on the implant surface (9) in order to adequately recognize the identifiers. The present invention further relates to a method using this type of device (1) and to the use of surface-coated implants (8).

The present disclosure provides a 3D tissue reconstruction implant having a hydrophilic implant surface and consisting of a bioabsorbable material wherein the implant surface is considered hydrophilic when evaluated using an ink test that follows ISO 8296: 2003 and adapts to the 3D surface, and wherein the implant surface is not hydrophilic when evaluated using an ink test that follows ISO 8296: 2003 and adapts to the 3D surface. Wherein the ink test comprises incubating the implant in a solution consisting of an ink having a surface tension of 72 mN / m and water for 1 minute, and wherein after the implant is incubated in the solution, the ink colored implant surface is an indication of a hydrophilic implant surface. The disclosure also provides the implant for tissue reconstruction, (soft) tissue support, tissue compatibilization and / or implant repair, and the use of the implant for reconstruction, compatibilization and / or repair of tissue and / or support of (soft) tissue, respectively, where the implant is embedded in a patient. The present disclosure further provides a method of manufacturing a tissue reconstruction implant having a hydrophilic implant surface.

The present invention relates to a method for manufacturing a medical implant, particularly a medical clip, wherein the implant surface of the medical implant has a colored finish. [Solution] To improve medical clips, particularly in the form of aneurysm clips, which comprise two clamp arms 24 and a biasing element 32, it is proposed that in each case one clamp arm is positioned or formed on the free end of the biasing element, the two clamp arms are in contact with each other in a basic position and are movable to an open position so as to move away from each other against the movement of the biasing element, and that at least a portion of the surface of the clip is colored to achieve clear distinguishability of the clip, and that the clip defines at least three spatially separated clip regions 38, 46, 42, and that at least three clip regions are colored in different colors.

A device and method for documenting a use of implants inserted in an operation. The, implants include an identifier on an implant surface and implants are provided for an operation, The device includes housing with a housing interior in which at least one light source and at least one camera for recording images of a plurality of implants of a surgical set before and after an operation are positioned, and an image evaluating apparatus for evaluating the images recorded before and after the operation by the at least one camera for the purpose of determining the implant or implants inserted during the operation. According to the invention, it is provided that the at least one light source and the at least one camera are configured such that reflections on the implant surfaces are reduced for the purpose of sufficient recognition of the identifiers.

This application relates generally to the field of implants and more specifically to drug eluting vascular stents and methods of making and using same. Specifically, this technology relates to controlled release of drug from an implant and particular from a stent without the presence of polymer or alteration of the implant surface.

The present application provides an implantation system and method for implanting a flexible neural electrode. The implantation system comprises a flexible neural electrode and an auxiliary implantation assembly. The flexible neural electrode is provided with an auxiliary implantation part. The auxiliary implantation assembly comprises a cannula assembly and a guide wire, the cannula assembly comprises an inner cannula and an outer cannula, the guide wire has a retracted state in which it is retracted within the inner cannula and an extended state in which it penetrates out of a distal end of the inner cannula, and an extended end of the guide wire is connected to the auxiliary implantation part. Wherein, when the guide wire is in the retracted state, the flexible neural electrode is in a curled state in which it is curled between the inner cannula and the outer cannula; when the guide wire is in the extended state, the flexible neural electrode moves to an intended target area along with the guide wire and unfolds, so as to transition from the curled state to an unfolded state. The above structure can achieve the objective of implantation through a small slit on the target object, and can ensure precise implantation and flat adherence of flexible neural electrodes on the surface of the implant by strategy of the auxiliary implantation assemblies.

Methods, systems, and devices for heating orthopedic implants. The system includes an orthopedic implant receiving heat from a heating device. The heating device includes a heating element and a casing supporting or housing the heating element. A control unit provides precise and reliable operation of the heating element by managing power delivery, regulating temperature, and ensuring safe and effective functioning of the heating device during orthopedic surgical procedures. The casing is shaped and dimensioned for engagement with an orthopedic implant. Briefly, according to the method, resistive heat is applied to the orthopedic implant by first accessing an exposed implant surface, applying a retractor instrument to aid in exposure of the orthopedic implant and protection of surrounding soft tissues, attaching a heating device to the exposed implant surface, and activating the heating device.

The invention discloses a method for in-situ construction of an anti-corrosion / bone repair promoting bifunctional composite coating on the surface of a magnesium-based implant, which comprises the following steps: (1) removing impurities from the surface of a magnesium-based material substrate, cleaning, and drying for later use; (2) treating the magnesium-based material substrate with a sodium phytate solution, and forming a magnesium phytate passivation layer on the surface of the magnesium-based material substrate in situ; and (3) coating the surface of the magnesium-based material substrate with a coating solution containing ethyl cellulose and oleoylserine, and drying to form the polymer functional layer. The composite material has the functions of resisting corrosion and promoting bone repair, the problem that magnesium and magnesium alloy are corroded too fast is solved, and meanwhile the biocompatibility and the biological function are improved.

Methods, systems, and devices for heating orthopedic implants are disclosed. The system includes an orthopedic implant receiving heat from a heating device. The heating device includes a heating element and a casing supporting or housing the heating element. A control unit provides precise and reliable operation of the heating element by managing power delivery, regulating temperature, and ensuring safe and effective functioning of the heating device during orthopedic surgical procedures. The casing is shaped and dimensioned for engagement with an orthopedic implant. Briefly, according to the method, resistive heat is applied to the orthopedic implant by first accessing an exposed implant surface, applying a retractor instrument to aid in exposure of the orthopedic implant and protection of surrounding soft tissues, attaching a heating device to the exposed implant surface, and activating the heating device.

The present disclosure relates to methods of manufacturing Ohmic contacts on a silicon carbide (SiC) substrate including providing a 4H—SiC or 6H—SiC substrate, implanting dopants into a surface region of the 4H—SiC or 6H—SiC substrate, annealing the implanted surface regions to form a 3C—SiC layer, and depositing a metal layer on the 3C—SiC layer. An implanting sequence of the implantation of dopants includes a plurality of plasma deposition acts with implantation energy levels including at least two different implantation energy levels. The implantation energy levels and one or more implantation doses of the plurality of plasma deposition acts are selected to form a 3C—SiC layer in the surface region of the 4H—SiC or 6H—SiC substrate during the annealing act. A method of manufacturing a semiconductor device having a structure including at least three layers including a 4H—SiC or 6H—SiC layer, a 3C—SiC layer, and a metal layer, by applying one or more of the techniques described herein, and semiconductor devices obtained with one or more of the techniques described herein are described.

The utility model relates to the technical field of cleaning, in particular to an implant surface cleaning device which comprises a shell, a cleaning area is arranged in the shell, an electric push rod is fixedly connected to the top face of the shell, and an ultrasonic generator is connected to the front surface of the shell in an embedded mode. The partition plate with holes drives the implant in the limiting cylinder to move, so that the cleaning liquid more uniformly covers the surface of a cleaned object, ultrasonic energy in the cleaning liquid is ensured to be uniformly distributed, a cleaning blind area is avoided, the stirring effect can physically help loosen and remove dirt attached to the surface of the object, and the cleaning effect is improved. Especially for the dirt which is difficult to be independently removed through the ultrasonic cavitation effect, the stirring can provide additional mechanical acting force to help the dirt to be separated.

Provided is a surface treatment method for a surgical implant that improves fatigue strength of the surgical implant while maintaining the microscopic surface structure of the surgical implant. A surface treatment method for a surgical implant, including: placing an additive manufactured surgical implant in a processing liquid, the surgical implant including a microscopic surface structure having a complete penetration area and an incomplete penetration area; and causing a nozzle immersed in the processing liquid to eject a cavitation jet of the processing liquid to the surgical implant to remove the incomplete penetration area remaining on a surface of the surgical implant and apply a compressive residual stress to the surface of the surgical implant.

The invention relates to the technical field of oral cavity teaching models, in particular to a teaching model for oral peri-implantitis surgery, which comprises a suitcase and an implant, and further comprises tool boxes symmetrically mounted in the suitcase, and implant surface cleaners and regenerative surgical tools are respectively accommodated in the two tool boxes; an adjusting part is mounted in the suitcase and is used for adjusting the heights of the implant and the tool box in the suitcase; the rotating component is mounted on the adjusting component and used for adjusting the angle of the model; according to the scheme, an adjusting component is arranged, so that the model can be conveniently and visually displayed, oral cavity problems can be conveniently teaching, meanwhile, after teaching is completed, the model, a tool box and the like can be conveniently stored, and practicability is achieved.

The invention relates to the technical field of antibacterial coatings, in particular to a titanium-based implant antibacterial coating, a preparation method of the titanium-based implant antibacterial coating and a prepared titanium-based implant. The coating is a Bi-TCPP compound formed by coordination bonding of bismuth ions and tetra (4-carboxyphenyl) porphyrin, and is covalently fixed on the surface of the titanium-based implant through a silane coupling agent layer. The preparation method comprises the following steps: performing cleaning and alkali heat treatment on a titanium substrate to construct an active surface; grafting a coupling agent layer through silanization reaction; the preparation method comprises the following steps: preparing a Bi-TCPP compound by a solvothermal method; and immobilizing the compound on the surface of a substrate through amidation reaction. According to the coating, efficient sterilization is achieved through pseudo-iron metabolism interference of bismuth ions and the double synergistic effect of TCPP on a bacterial membrane electron transfer chain, selective antibiosis is achieved through the structural difference between bacteria and human cells, and cytotoxicity is effectively avoided. The coating has the ultrasonic response characteristic, on-demand controlled release of antibacterial factors can be achieved, and the antibacterial efficiency and durability are remarkably improved.

The present application provides an implantation system and method for implanting a flexible neural electrode. The implantation system comprises a flexible neural electrode and an auxiliary implantation assembly. The flexible neural electrode is provided with an auxiliary implantation part. The auxiliary implantation assembly comprises a cannula assembly and a guide wire, the cannula assembly comprises an inner cannula and an outer cannula, the guide wire has a retracted state in which it is retracted within the inner cannula and an extended state in which it penetrates out of a distal end of the inner cannula, and an extended end of the guide wire is connected to the auxiliary implantation part. Wherein, when the guide wire is in the retracted state, the flexible neural electrode is in a curled state in which it is curled between the inner cannula and the outer cannula; when the guide wire is in the extended state, the flexible neural electrode moves to an intended target area along with the guide wire and unfolds, so as to transition from the curled state to an unfolded state. The above structure can achieve the objective of implantation through a small slit on the target object, and can ensure precise implantation and flat adherence of flexible neural electrodes on the surface of the implant by strategy of the auxiliary implantation assemblies.

The invention relates to the technical field of medical materials, and particularly discloses a titanium surface composite coating with osteogenesis promoting and antibacterial functions. The micro-arc magnesium oxide coating is arranged on the surface of the titanium substrate; the chitosan coating is arranged on the surface of the micro-arc magnesium oxide coating; the chlorogenic acid is loaded in the chitosan coating; a magnesium-containing porous microstructure is constructed on the surface of a titanium substrate through a micro-arc oxidation technology, so that the biological activity and corrosion resistance of the coating are improved; furthermore, chitosan is used as a biocompatible carrier to load a traditional Chinese medicine active ingredient chlorogenic acid, so that the surface of the implant has excellent osteogenic differentiation promoting capability and broad-spectrum antibacterial property at the same time. Physical modification, biopolymer drug loading and traditional Chinese medicine active ingredients are combined, and the problems that a traditional titanium implant is high in surface biological inertness, infection is likely to be caused and osseointegration is poor are solved through the synergistic effect on the three aspects of the structure, the material and the biological function.

The application discloses a kind of responsive antibacterial hydrogel coating modified implants and preparation method.The present application provides a kind of implant antibacterial hydrogel coating modification method, using hydrogel coating solution is modified implant by immersion, spin coating or spraying method, forms antibacterial coating on the surface of implant;The hydrogel coating solution is composed of tannic acid, 3-formyl phenyl boronic acid, tobramycin and deionized water according to weight ratio (30-60) :(40-70) :(20-45) :1000, pH value is 8.0-10.0.The modification method of the present application is simple in operation, raw material is easy to obtain, process flow is less, and the hydrogel coating does not need initiator and external stimulation, can be in situ gel on the surface of implant at normal temperature and pressure, also has pH, active oxygen stimulation responsiveness and excellent antibacterial performance, and the hydrogel coating of the present application has extensive substrate adhesion, and can be used on the surface of metal, ceramic or composite material etc..

The invention provides an orthopedic implant coded character image expansion method, which comprises the following steps: aiming at an initial point cloud data set, adopting a curved surface fitting algorithm to reconstruct a complex curved surface model, determining a curvature change area and a character distribution position, and integrating a pixel transition width and a noise suppression mechanism to obtain a fitting curved surface grid; calculating the depth value of each character according to the sharpened character boundary data set, and obtaining depth distribution mapping by comparing the difference between the curved surface reference height and the character recess height and fusing path integral calculation and surface curvature correction; and integrating surface roughness data from the interval distribution sequence, removing interference of roughness noise on interval measurement by adopting a filtering algorithm, and meanwhile, referring to gradient amplitude calculation and pixel transition width to obtain refined interval parameters. According to the method, the measurement precision and the reduction reliability of the micron-sized characters on the surface of the implant are remarkably improved, and an efficient solution is provided for character feature analysis of a complex curved surface.

A device (25) for drilling holes in bone and configured to determine bone screw length, the device (25) including a surgical power drill (2) comprising: a) a housing (12) and; b) a measuring device (1) releasably attached or fixed to the housing (12), wherein the measuring device (1) is configured to measure the distance (x) covered by the housing (12) in the direction of the longitudinal axis (7) and relative to a surface of an implant (26) or a bone during a drilling process, wherein the measuring device (1) comprises a processing unit (14) to record the distance (x) covered with respect to time; the processing unit (14) comprises one or more differentiators to determine at least the first and second derivatives of the distance (x) covered with respect to time; and the processing unit (14) further comprises a peak detector to analyze one or more peaks occurring in the graph of the highest derivative with respect to time, and wherein the measuring device (1) comprises a laser device or an ultrasound position sensor for displacement assessment.

An implant system and a method of forming the implant system including an implant to be implanted into living bone. The implant includes titanium. The implant includes a first surface geometry on a first portion of a surface of the implant and a second surface geometry on a second portion of the surface of the implant. The first surface geometry includes at least a submicron topography including tube-like structures and the second surface geometry includes a first micro-scale topography, a second micro-scale topography superimposed on the first topography, and a submicron topography superimposed on the first and second micro-scale topographies, the submicron topography including the tube-like structures.

A dental implant made of a ceramic material including an implant surface having at least partially a contact angle of less than 20°, the implant surface being at least partially covered by a protective layer. The protective layer includes a dextran having a molecular weight of more than 15,000 Da.

The present invention relates to an implant for insertion in a body lumen, wherein at least a portion of the surface is arranged to contact a wall of the body lumen and / or bodily fluid flowing through the lumen when the implant is inserted in the body lumen. The abovementioned portion of surface is covered with a surface sealing which is designed to dissolve within about 30 seconds when inserting the implant in the body lumen, such that this portion of surface is exposed to the body lumen. The present invention also relates to a method of manufacturing an implant as above described, comprising the steps of obtaining an implant with a surface; providing at least a portion of such surface with target characteristics; and covering such at least a portion of surface with a surface sealing to preserve the target characteristics. The present invention also refers to an implant set comprising an implant as defined and to a use of such an implant for treating an animal or a human body, wherein the treatment procedure comprises dissolving the surface sealing covering at least a portion of a surface of the implant by flushing the surface with a dissolving solution.

The application discloses a method for constructing a corrosion-resistant / bone-repair-promoting bifunctional composite coating on a magnesium-based implant surface in situ, which comprises the following steps: (1) removing impurities from the surface of a magnesium-based material substrate, cleaning the magnesium-based material substrate, and drying the magnesium-based material substrate for standby use; (2) treating the magnesium-based material substrate with a sodium phytate solution to form a magnesium phytate passivation layer on the surface of the magnesium-based material substrate in situ; and (3) coating a coating liquid containing ethyl cellulose and oleoyl serine on the surface of the magnesium-based material substrate, and drying the magnesium-based material substrate to form a polymer functional layer. The magnesium-based implant surface has both corrosion resistance and bone-repair-promoting functions, the problem of too fast corrosion of magnesium and magnesium alloys is solved, and the biocompatibility and biological functions are improved.

The utility model relates to the technical field of implant processing, in particular to a bacteriostatic smearing device for the surface of a dental implant. The device comprises a base, a clamping component, a spraying component and a trowelling component, wherein the clamping component is rotatably arranged on the base along the circumferential direction and is used for fixing an implant; the spraying component is fixedly arranged on the base and is used for spraying liquid onto the surface of the implant; and the trowelling component is movably arranged on the base and is used for uniformly smearing the liquid on the surface of the implant. The device solves the problem that an existing device is difficult to uniformly smear antibacterial liquid on the surface of an implant.