82 results about "Implant prosthesis" patented technology

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.

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).

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.

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.

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.

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.

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 invention relates to implantable prosthetic devices, such as prosthetic heart valves, and to attachment configurations and methods of attaching soft components, such as leaflets or skirts, to frames of such prosthetic valves.

A heart valve repair system includes an implantable prosthetic device configured to attach to at least two leaflets of a native heart valve of a patient and hold the at least two leaflets in a relatively fixed position, and a connector that is separate from the implantable prosthetic device, the connector including first and second tissue anchors and being configured to be attached to the at least two leaflets of the native valve of the patient when the at least two leaflets are held by the implantable prosthetic device in the relatively fixed position, the implantable prosthetic device being configured to be detached from the at least two leaflets and removed from the patient with the connector remaining attached to the at least two leaflets.

Robotic surgical systems and methods for preparing a glenoid for a receiving an implant in a shoulder joint replacement surgery. A control system associates, with the glenoid, a virtual boundary that defines a volume of material that should be removed from the glenoid and a virtual line haptic being defined based on a planned trajectory of a screw to be implanted into the glenoid to facilitate installation of the implant. The control system controls a robotic manipulator to operate and constrain a first cutting tool relative to the virtual boundary to remove the volume of material from the glenoid to prepare a surface of the glenoid to receive a base of the implant. The control system controls the robotic manipulator to operate and constrain a second cutting tool relative to the virtual line haptic to form a center hole within the glenoid to receive the screw.

The invention discloses a navigation method and device for hip replacement surgery and electronic equipment, and relates to the field of medical engineering. The method comprises the following steps: acquiring a three-dimensional skeleton model of a patient before a hip joint replacement operation and a first target position of a to-be-implanted prosthesis of the patient in the three-dimensional skeleton model; establishing a mark coordinate system according to the plurality of reference mark points; acquiring a patient position of the patient and a tool position of the handheld tool in the surgical space; a mapping relation between a mark coordinate system and an image coordinate system is established through image registration, the image registration comprises coarse registration and fine registration, and the image coordinate system is a coordinate system where the three-dimensional skeleton model is located; determining a second target position of the to-be-implanted prosthesis in the operation space according to the mapping relation; and combining the patient position, the tool position and the second target position to guide the doctor to perform hip replacement surgery. By implementing the technical scheme provided by the invention, the accuracy of image registration is improved through coarse registration and fine registration, and then the accuracy of prosthesis implantation is improved.

An implantable prosthesis for repairing tissue defects includes a layer of repair fabric and a plurality of microtextured grip segments mounted to the repair fabric. The grip segments include a pattern of perforations on a tissue facing surface to promote tissue ingrowth.

This application relates to a sealing element for a prosthetic heart valve. An implantable prosthetic valve, radially collapsible into a collapsible configuration and radially expandable into an expandable configuration, includes an annular frame having an inlet end, an outlet end, and a longitudinal axis. Leaflet structures are positioned within and secured to the frame, and a sealing element is secured to the frame. The sealing element includes a first braided portion extending circumferentially around the frame. The first braided portion includes a plurality of interlaced filaments. The sealing element also includes a second braided portion extending circumferentially around the frame and spaced from the first braided portion along the longitudinal axis of the frame. At least a portion of the filaments exits the braid of the first braided portion and forms loops extending radially outward from the frame.

An implantable prosthetic valve (10, 200) includes an annular frame (12) that is radially expandable from a radially compressed state to a radially expanded state. The frame (12) has a longitudinal axis (L). The prosthetic valve (10, 200) also includes a plurality of leaflets (40) positioned to regulate blood flow from an inflow end to an outflow end of the frame (12), and a skirt assembly (15). The skirt assembly (15) includes a laminate having a textile layer sandwiched between a first encapsulation layer (84) and a second encapsulation layer (86). The first and second encapsulation layers are made of an elastomer, and the textile layer includes a first set of yarns (302) and a second set of yarns (304) interwoven with the first set of yarns, wherein the first and second sets of yarns are neither perpendicular nor parallel to the longitudinal axis.

This invention relates to the field of medical device technology and discloses a delivery device for implantable prostheses. This invention also discloses a method for manufacturing an implantable prosthesis system and an implantable prosthesis delivery device. In the process of delivering the implantable prosthesis into the human body, the delivery device utilizes the cooperation of a limiting member and a limiting structure to control the rotation direction of the rotating shaft, thereby adjusting the rotation direction of the drive wire. The above design simplifies the structure of the implantable prosthesis system and gives the implantable prosthesis system strict unidirectional actuation.

Implantable prostheses and related methods are generally described. In some embodiments, the prosthesis may be a generally ellipsoidal (e.g., spherical) shape formed from one or more subunits. 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, the markers 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 invention provides a shoulder replacement surgery navigation system and method, which relates to the field of computer technology. The system includes: a controller and a navigation positioning device; the controller is communicatively connected to the navigation positioning device; the controller includes a preoperative planning module, a preoperative simulation module, and an intraoperative execution module. The present invention provides a shoulder replacement surgery navigation system and method. By combining preoperative medical images of the affected bone and medical images of the healthy bone corresponding to the affected bone, the healthy morphology of the affected bone can be more accurately reflected when the affected bone has bone defects and / or morphological abnormalities. Furthermore, prosthesis planning can be performed based on the three-dimensional bone model of the affected bone, making preoperative surgical planning more objective and quantitative. Based on the parameter information of the prosthesis to be implanted, the range of motion of the patient's surgical shoulder joint after the prosthesis is implanted in the affected bone can be simulated, further improving the accuracy and rationality of prosthesis planning, and significantly improving the accuracy and reliability of orthopedic surgery.

The present invention relates to a positioning device (100) for implantation of prosthesis in a long bone, in particular for implantation of humeral prosthesis, comprising: at least one centering element (101) with a channel (102) configured to house an intramedullary nail (11); a support element (103) configured to hold a reference mask (200) on a plane (12) at a resected metaphysis of the long bone; an adjustment element (104) configured to connect the centering element (101) and the support element (103), wherein the adjustment element (104) further comprises a displacement device (105) configured to provide a controlled offset to the support element (103) for displacing the reference mask (200) over the plane (12) of the resected metaphysis.

Procedures for performing shoulder arthroplasties are disclosed, such procedures including performing various preparation steps for the humerus and glenoid to receive implants, and proceeding through placement of implants and / or prostheses at the surgical site. The techniques disclosed afford the benefit of being tissue sparing, and thus minimize damage or trauma to tissue at the surgical site, including allowing the subscapularis tendon to remain intact throughout the procedures. Various devices that enable the procedures are disclosed, including but not limited to humeral resection guides, glenoid guides, humeral guides, and handle assemblies, among other tools, components, and the like that can be used with such devices. In at least some embodiments, preparation steps include resecting a humeral head, and reaming and broaching the resulting humeral resection surface to receive an implant, and then a prosthesis, as well as reaming a glenoid so it can also receive an implant.

An implantable prosthesis for preventing, reinforcing and / or mending an anatomical defect, including a parastomal hernia which may occur following the formation of a stoma or ostomy opening, such as formed in conjunction with an ileostomy or colostomy. The prosthesis may include a body of biocompatible material having a preformed three-dimensional channel configured to receive a portion of a lateralized bowel formed in conjunction with a parastomal hernia repair or ostomy creation. An adhesion resistant barrier may be located on an inner side of the channel to isolate the portion of the lateralized bowel from a tissue infiltratable surface of the body to reduce or eliminate potential adhesions between the body and the lateralized bowel. A portion of the channel may include a flared segment extending inwardly from the outer periphery to reduce pressure on the portion of the lateralized bowel at the open end of the channel.