123 results about "Implant prosthesis" patented technology

The invention belongs to the technical field of medical implant prostheses, and particularly relates to a self-stability cervical interbody fusion cage which comprises a fixing plate and a fusion cage body. An adjusting rod is mounted in the fusion cage main body, a mounting groove is formed in the fusion cage main body, the adjusting rod and a sliding block are mounted in the mounting groove, a check block is mounted on the adjusting rod, and the check block drives the sliding block to move; an adjusting groove is formed in the fusion cage body, a connecting plate and a protruding tooth rod are installed in the adjusting groove, a contact plate is installed on the connecting plate, and a top block and a sliding block are connected through a pull rope; when the interbody fusion cage is implanted, the protruding toothed rod retracts, the surface of the protruding toothed rod is kept flat and smooth, implantation of the interbody fusion cage is facilitated, extrusion, friction and scratching are avoided, then after implantation, the protruding toothed rod stretches out, friction force between the interbody fusion cage and the vertebral body end plate is increased, and it is guaranteed that the fixing effect and stability of the interbody fusion cage are good; the treatment effect is improved.

An implantable prosthetic device can include a radially expandable and compressible annular frame comprising an inflow end portion and an outflow end portion, and a plurality of leaflets arranged within the frame. Each leaflet can include one or more commissure tabs. The commissure tabs of two adjacent leaflets coupled to a commissure attachment member to form a commissure. The commissure can be secured to the frame via first and second sutures, each suture extending through a respective commissure tab, through the commissure attachment member, crossing over the other suture and being secured to the frame. The commissure can define a bending axis disposed radially inwardly of the frame such that a main body of each leaflet is prevented from contacting the frame when the valvular structure is in an open configuration.

Embodiments of an implantable prosthetic valve are disclosed. The valve can have an annular frame having a plurality of frame members and a skirt assembly. The skirt assembly can include a laminate having a fabric layer sandwiched between a first covering member and a second covering member. At least one surface of the fabric layer can be exposed at one or more windows in the second covering member. The skirt assembly can be coupled to the annular frame by a suture extending through the fabric layer at the one or more windows and around at least one of the plurality of frame members. Methods for making such an implantable prosthetic valve are also disclosed.

The invention provides an integrated splicable porous mandibular implant prosthesis, which comprises a left prosthesis module, a right prosthesis module, a splicing connection part and a porous structure part, and is characterized in that the left prosthesis module and the right prosthesis module are detachably connected through the splicing connection part to form an integral structure; porous structure parts are arranged in the middle main body areas of the left prosthesis module and the right prosthesis module respectively, a plurality of double-end guide holes are evenly formed in the porous structure parts, and each double-end guide hole forms an independent hole opening in the front surface and the rear surface of the corresponding prosthesis module. The front hole opening and the rear hole opening are communicated with each other through communicating hole channels formed in the porous structure part; the splicing connecting part comprises an insertion tenon part arranged on the left prosthesis module and a mortise groove part arranged on the right prosthesis module; the splicing connecting part is provided with a limiting clamping structure; the left prosthesis module and the right prosthesis module are respectively provided with a plurality of fixing holes. During use, rapid assembly of the prosthesis modules is facilitated, and growth of bone tissue is facilitated.

An implantable prosthetic device can include a radially expandable and compressible annular frame comprising an inflow end portion and an outflow end portion, the frame comprising one or more axially extending struts that defining one or more commissure windows. The device can further include a valvular structure comprising a plurality of leaflets arranged within the frame, each leaflet comprising a main body and one or more commissure tabs, and a commissure comprising a flexible connector and the commissure tabs of two adjacent leaflets coupled to the flexible connector via one or more primary sutures. The commissure can be secured to a respective commissure window via one or more secondary sutures, each secondary suture extending through a radially outer layer of the flexible connector, a respective commissure tab, a radially inner layer of the flexible connector, and a free edge portion of the flexible connector.

The invention relates to a self-healing bionic intervertebral disc capable of improving service stability and a nucleus pulposus preparation method of the self-healing bionic intervertebral disc, and belongs to the field of bionic implant prostheses. The self-healing bionic intervertebral disc capable of improving the service stability is composed of an upper end plate, a bionic fibrous ring layer, a lower end plate and a bionic nucleus pulposus, the bionic nucleus pulposus adopts dynamic cross-linked hydrogel to simulate the viscoelasticity and moisture regulation function of a natural nucleus pulposus, and the buffering and self-healing characteristics of the bionic intervertebral disc are achieved; the bionic fiber ring layer achieves gradient mechanical properties through directionally-arranged composite materials, and three-dimensional physiological movement of the artificial intervertebral disc close to the lumbar vertebra of a human body is achieved. The bionic intervertebral disc provided by the invention is matched with viscoelasticity of a natural intervertebral disc, recovers natural matching with three-dimensional physiological movement of a human spine, can buffer dynamic load and maintain intervertebral height, can perform micro-injury self-repair through dynamic crosslinking of chemical bonds in bionic nucleus pulposus, and has a good application prospect. And the kinematic mechanical stability of long-term service in a human body is realized.

An implantable sensor assembly for use during spinal fusion. An implantable sensor assembly may include a component of an implantable prosthesis and an implantable cartridge associated with the component. The implantable cartridge may include at least one sensor capable of detecting one or more kinematic measurements associated with the patient and generating sensor data, and an antenna in electrical communication with the at least one sensor, where the antenna transmits the sensor data to a receiver at a remote location.

Implantable prostheses and related methods are generally described. In some embodiments, the prosthesis may be used for soft tissue reconstruction. The prosthesis may be formed from a three-dimensional load-bearing porous scaffold having interconnected networks of pores, thereby enabling tissue infiltration and allowing native tissue, blood vessels, and cells to colonize on the scaffold. In some embodiments, the scaffold may be formed from a biodegradable material such that it may degrade during the tissue infiltration process, leaving native tissue. In some embodiments, the stent may be formed from a triple periodic minimum surface, such as a helical tetracosahedron, to achieve high compressibility and high porosity. The compressibility of the implant may simulate the mechanical behavior of native tissue and allow the implant to be delivered through a small incision site (e.g., with an implant delivery funnel).

A deployment device for a tissue repair system includes a front delivery assembly that is detachable from a base assembly of the deployment device. The front delivery assembly includes at least one prosthesis and at least one driven assembly that actuates the at least one prosthesis. The base assembly includes a driving assembly that may engage the at least one driven assembly of the at least one prosthesis. The front delivery assembly can be rotated so that the position of a prosthesis in the front delivery assembly is moved in and out of alignment with the driving assembly. A kit of parts may be provided that includes a base assembly as well as two or more detachable front delivery assemblies.

An implantable prosthetic device has a coaption element, a pair of paddles, and at least one cover. The coaption element is configured to be positioned within the native heart valve orifice to help fill a space where the native valve is regurgitant and form a more effective seal. The cover can at least partially cover the coaption element and / or the pair of paddles. The cover is at least partially closed by alternating in and out stitches that are substantially unexposed when the cover is secured on the device.

The present application relates to a skirt assembly for an implantable prosthetic valve. Embodiments of the implantable prosthetic valve are disclosed. The valve may have an annular frame having a plurality of frame members and a skirt assembly. The skirt assembly may include a laminate having a fabric layer sandwiched between a first cover member and a second cover member. At least one surface of the fabric layer may be exposed at one or more windows in the second cover member. The skirt assembly may be coupled to the annular frame by sutures extending through the fabric layer at the one or more windows and around at least one of the plurality of frame members. A method for manufacturing such an implantable prosthetic valve is also disclosed.

The present invention relates to a zirconia ceramic containing a glass phase, comprising 1.0-5.5 wt% of a YASZ glass phase and the balance a 3Y-TZP crystalline phase, wherein the YASZ glass phase is located between grains of the 3Y-TZP crystalline phase. The YASZ glass phase comprises 15-35 wt% Y2O3, 10-30 wt% Al2O3, 35-55 wt% SiO2, and 4-10 wt% ZrO2, and the dihedral angle formed between the YASZ glass phase and the 3Y-TZP crystalline phase is 62-85°. The present invention also relates to a bone implant prosthesis prepared from the zirconia ceramic containing the glass phase.

An implantable sensor assembly for use during spinal fusion may include an implantable prosthesis component and an implantable cartridge associated with the component. The implantable cartridge may include at least one sensor capable of detecting one or more kinematic measurements associated with the patient and generating sensor data, and an antenna in electrical communication with the at least one sensor, the antenna transmitting the sensor data to a receiver at a remote location.

Embodiments of an implantable prosthetic valve are disclosed. The valve can have an annular frame having a plurality of frame members and a skirt assembly. The skirt assembly can include a laminate having a fabric layer sandwiched between a first covering member and a second covering member. At least one surface of the fabric layer can be exposed at one or more windows in the second covering member. The skirt assembly can be coupled to the annular frame by a suture extending through the fabric layer at the one or more windows and around at least one of the plurality of frame members. Methods for making such an implantable prosthetic valve are also disclosed.

Disclosed herein is an implantable prosthetic valve that is configured to substantially reduce vascular nebula formation and / or uncontrolled tissue ingrowth along the implantable prosthetic valve. Methods of making such implantable prosthetic valves are also disclosed herein. Also disclosed herein are kits comprising one or more sutures configured to substantially reduce vascular nebula formation and / or uncontrolled tissue ingrowth along the implantable prosthetic valve.

The invention relates to the field of medical instruments, and provides a conicity-locked osseointegration prosthesis. The osseointegration prosthesis comprises an implantation prosthesis, a percutaneous device and an abutment screw, a plurality of fixing ridges are arranged on the periphery of the implantation prosthesis, intraosseous fixation is achieved in a press-fit mode, a taper locking structure is combined to prevent the implantation prosthesis from sinking, and it is ensured that the position of the implantation prosthesis is fixed after implantation; a flushing hole communicated with the internal flushing cavity is further formed in the periphery of the implant prosthesis, and the implant prosthesis can be used for injecting medicine into the medullary cavity, implanting bone materials and the like or used for follow-up flushing treatment for intramedullary infection possibly occurring in the later period. The percutaneous device and the implanted prosthesis are connected through the anti-rotation structure and the taper locking structure, the percutaneous section has the surface state formed through surface treatment, stimulation to surrounding soft tissue is reduced, the anti-infection capacity is improved, and the percutaneous sealing effect is improved. By optimizing the implantation structure and the percutaneous interface design, the intraoperative operation difficulty is reduced, the intraoperative time is shortened, meanwhile, the percutaneous stoma is reduced, and the infection risk is reduced.

To provide implantable, mechanically expandable prosthetic devices, such as prosthetic heart valves, and delivery apparatus and methods for implanting the prosthetic heart valves.SOLUTION: A delivery apparatus for implanting a prosthetic valve includes a handle, a first shaft, a plurality of actuation shafts, and a control mechanism. The first shaft has one or more lumens extending from a first end portion to a second end portion. The actuation shafts each have a proximal end portion and a distal end portion, and the actuation shafts extend through the one or more lumens of the first shaft. The control mechanism is coupled to the actuation shafts and to the handle. The control mechanism is configured such that the actuation shafts can move axially relative to each other in a first operational mode and such that the actuation shafts can be moved axially simultaneously in a second operational mode. Additionally or alternatively, the first shaft can include a plurality of helical lumens configured for receiving the actuation shafts.SELECTED DRAWING: Figure 23

The present application relates to a prosthetic septal device for a heart valve. An implantable prosthetic device includes a septal member configured to be disposed between leaflets of a native heart valve positioned between a first chamber and a second chamber of a heart. The prosthetic device further includes a plurality of anchoring members coupled to the septal member and configured to capture the leaflets between respective anchoring members and the septal member such that the prosthetic device is held between the leaflets. When the leaflets are captured between the anchoring members and the septal member, the septal member is configured to provide a flow path through the prosthetic device between the first chamber and the second chamber such that blood can flow retrograde through the septal member from the second chamber to the first chamber.

The application discloses a prosthesis system for minimally invasive femoral head replacement, which comprises a bone cutting assembly, a prosthesis, an extension rod, a guide frame and a locking nail. In the operation, only a small opening is needed on the lateral side of the femoral neck, and then a channel is established, and the prosthesis is implanted in the channel, so that the degree of trauma, the operation time and the blood loss are greatly reduced. A detachable extension rod is arranged on the implanted prosthesis, and after the extension rod is positioned by cooperating with the guide frame, the extension rod can guide the path of the locking nail, so that the locking nail is connected with the prosthesis, and is fixed with the large and small trochanters of the patient, so that the prosthesis can be combined with the relatively hard bone and the surface layer of the femoral neck to achieve stable combined support and avoid loosening of the prosthesis.

Improved prosthetic heart valves, their methods of manufacture, and systems and devices for manufacturing the valves are described. The prosthetic heart valves can be configured for transcatheter implantation. The prosthetic heart valves can have artificial leaflets. The prosthetic heart valves can be manufactured in numerous ways, such as by polymeric dipping processes.

An implantable prosthetic device for repairing a native valve includes a first clip, a second clip, a first cord, and a second cord. The first clip has a first arm and a second arm and is moveable between an open position and a closed position. The second clip has a third arm and a fourth arm and is moveable between an open position and a closed position. The first cord is operatively coupled to the first clip for moving the first clip between the open and closed position. The second cord is operatively coupled to the second clip for moving the second clip between the open and closed position. The device is configured to clamp a first leaflet of the native mitral valve between the first arm and the second arm and to clamp a second leaflet of the native mitral valve between the third arm and the fourth arm.

The invention provides a degradable breast patch used for covering an implant prosthesis, the surface of the implant prosthesis comprises a first area used for being away from pectoral muscles and a second area used for being positioned to the pectoral muscles, the breast patch is used for at least covering the first area, the part used for covering the first area is a first forming patch, and the part used for covering the second area is a second forming patch. The overall contour of the support is of a curved surface structure and comprises an inner surface contour surface and an outer surface contour surface, the internal structure of the support comprises a support body with a plurality of meshes, and any mesh is communicated with other meshes in the X-axis, Y-axis and Z-axis directions of the mesh; a plurality of submicron fibers penetrate through any mesh, and any submicron fiber extends from the outer surface contour surface to the central axis of the inner surface contour surface. Through the synergistic effect of the three-dimensional space pore structure and the penetrating mesh oriented submicron fibers, a regeneration tissue layer matched with the biomechanical property of a natural breast fat layer is finally formed on the surface of the prosthesis, and therefore continuous inhibition of capsule contracture and long-term stable fixation of the prosthesis are achieved.

Prosthetic ankle replacements, prostheses, and associated methods of implanting prosthetic ankle and other joint replacements. In one form, a tibia stem has a geometry to facilitate implant installation while providing means to transfer load over a larger surface area through a press-fit, scratch-fit or cortical fit, thus lowering the contact stresses at the tibia-metal implant interface. The design and its implantation procedure also address minimization of misalignment. A talus element presents a partial-hemispherical surface; a tibial element which is to be affixed within the tibia, having an elongated stem part which extends into and within a canal of the tibial inner cortex, an intermediate body part which smoothly widens in radius toward an end which is a base to the tibial element, the base having a concavity formed therein shaped to match the partial-hemispherical surface of the talus element with a plastic cap between the two.

The present invention relates to the field of medical devices, and particularly to an anti-disengagement anchoring mechanism applied to an implantable prosthesis; it includes an implantable prosthesis, a pushing device and an anti-disengagement anchoring mechanism. The valve prosthesis includes a valve sewing section and an anchoring area. The anti-disengagement anchoring mechanism includes an anchoring member and an anti-disengagement member. One end of the anchoring member is connected to one end of the anti-disengagement member. The pushing device pushes the anti-disengagement anchoring mechanism, and the other end of the anchoring member passes through the anchoring area and is connected to the heart tissue in a matching manner. When the anti-disengagement anchoring mechanism is further pushed, the other end of the anti-disengagement member passes through the anchoring area and then folds back and finally forms two or more connection points with the anchoring area; in the present invention, the anchoring member passes through the anchoring area and is connected to the heart tissue in a matching manner, so that the stent is fixed in the heart. At the same time, the anti-disengagement member passes through the anchoring area and is finally connected to the anchoring area, so that the anti-disengagement anchoring mechanism is locked on the anchoring area, avoiding the loosening of the anchoring member relative to the anchoring area and the situation of disengaging from the anchoring area.

An assembly includes a nose cone, a stylet, and a spacer. The nose cone forms a distal end of a delivery apparatus for implanting a prosthetic medical device. The nose cone includes a tapered body that narrows to an apex at a distal end of the nose cone and an axial bore extending through a center of the tapered body. The stylet includes a shaft extending through the axial bore of the nose cone and an end portion that is wider than the shaft and disposed outside and distal to the apex of the nose cone. The spacer is disposed around the shaft of the stylet, distal to the apex, and configured to offset the end portion of the stylet from the apex.

The invention discloses an implanted prosthesis releasing device and a conveying system, and the implanted prosthesis releasing device comprises a loading assembly which comprises a first loading body and a second loading body, and the first loading body and the second loading body define a loading area; the driving assembly is connected with the first loading body and the second loading body; the axial limiting assembly is used for being in contact with the axial end part of the implanted prosthesis; the restraining assembly is connected with the loading assembly and the axial limiting assembly; when the first loading body and the second loading body move in the axial direction away from each other, the restraining assembly limits the axial displacement of the axial limiting assembly and the implanted prosthesis through a preset restraining relation. According to the restraining assembly, through the preset restraining relation and direct contact between the axial limiting assembly and the end of the implanted prosthesis, axial restraining on the implanted prosthesis is formed, it is ensured that the prosthesis is always located at the preset axis position before being released, when the first loading body and the second loading body move relatively, axial movement of the axial limiting assembly and the implanted prosthesis is limited, and the effect of restraining the implanted prosthesis is achieved. The operation risk is reduced.

Implantable prostheses and related methods are generally described. In some embodiments, the prosthesis (100) may be a generally ellipsoidal (e.g., spherical) shape formed from one or more subunits (20). The subunits may be tapered or frustoconical, formed by manipulating a two-dimensional substrate material. The sidewalls of the subunits may be secured to each other to enhance the stiffness of the prosthesis. In some embodiments, markers (30) may be used to assist in distinguishing prostheses in an implant site by medical imaging (e.g., x-ray imaging). In this manner, an implant site can be easily identified, which can also be a site of recent biopsy and / or resection of diseased tissue. The prosthesis may be formed from a porous material to induce tissue infiltration, which may promote natural tissue regeneration to achieve a more natural tissue appearance and feel. The tissue infiltration enables the prosthesis to have enhanced anti-migration ability after implantation.

The present disclosure provides a method, device, electronic device, storage medium and program product for evaluating the installation position of an elbow joint prosthesis. The method includes: constructing a biomechanical model of the elbow joint with an implanted prosthesis, the model including a coupled skeletal prosthesis model and a muscle model, the skeletal prosthesis model including a humeral prosthesis equivalent mass block and an ulnar prosthesis equivalent mass block; obtaining multiple position data to be evaluated of the prosthesis rotation axis, each position data to be evaluated is used to represent a position to be evaluated of the prosthesis rotation axis between two prosthesis equivalent mass blocks; for each position data to be evaluated, based on the prosthesis rotation axis corresponding to the position data to be evaluated, using a dynamic method to perform motion simulation calculation on the biomechanical model of the elbow joint with the implanted prosthesis, to obtain muscle force data of a reference muscle in the muscle model; and determining an evaluation result of each position data to be evaluated based on the muscle force data corresponding to each position data to be evaluated.