41 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.

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.

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 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.

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.

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.

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.

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.

Through observation, it has been determined that deployment of the delivery sleeve may cause one or more portions of the delivery sleeve to extend beyond one end of the endoluminal device, resulting in material overhanging. The overhang may affect blood flow through the endoprosthesis or otherwise affect performance, including promoting unwanted tissue growth. Various inventive concepts are provided to address (reduce or remove) the overhang of the restraint jacket.

Systems and methods for implantation of an intervertebral disc prosthesis include the prosthesis, a cartridge, and an instrument. Prior to implantation of the prosthesis, the cartridge receives and engages with the prosthesis to form an assembly. In addition, the instrument receives the assembly within an opening in an outer housing and engages the cartridge with a coupler of a locking shaft. Following implantation of the cartridge, actuation of a release driver causes an expansion bit of the release driver to engage release tabs on the cartridge to cause the cartridge to disengage from the prosthesis. The systems and methods optionally include a trial implant and / or an osteotome for trialing prior to implantation of the prosthesis.

An implantable prosthetic valve that is radially collapsible to a collapsed configuration and radially expandable to an expanded configuration includes an annular frame having an inflow end, an outflow end, and a longitudinal axis. A leaflet structure is positioned within the frame and secured thereto, and a sealing element is secured to the frame. The sealing element includes a first woven portion extending circumferentially around the frame. The first woven portion includes a plurality of interwoven filaments. The sealing element further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. At least a portion of the filaments exit the weave of the first woven portion and form loops extending radially outwardly from the frame.

An implantable prosthesis for hernia repair is designed for minimally invasive, robotic, or laparoscopic surgery. Various embodiments of the implantable prosthesis are tailored for inguinal hernia repair, including direct, indirect, and bilateral hernia defects, as well as for femoral hernia repair.

An implantable prosthetic device has two anchor portions. Each anchor portion is configured to attach the prosthetic device to a native valve leaflet. The two anchor portions can be opened both simultaneously by a single actuator and can also be opened independently by two or more separate actuators.

This invention discloses an implant for lower eyelid enhancement, relating to the field of medical aesthetics. The implant is elongated, characterized by a triangular cross-sectional shape; the maximum width of the cross-section does not exceed 3mm. The implant is constructed to fit snugly into a cavity above the lower tarsal plate, and its structure ensures that even if the implant flips within the cavity, one corner of the triangle remains upward, thus preventing the upper edge of the implant from pressing upward and causing ingrown eyelashes. The implant of this invention can recreate the mountain-like structure of the lower eyelid when viewed from the side, maintaining softness while retaining a specific shape and height. Furthermore, the length of the implant is designed to be cut to fit the user's palpebral fissure length.

The invention discloses a surface middle personalized PEEK (Polyether Ether Ketone) implant prosthesis and a design method thereof. The prosthesis is used for maxillary bone block fixing and face middle shape repairing after orthognathic Lefort I-type osteotomy, and polyether-ether-ketone is adopted as the material; the thickness and shape of the outer side surface of the prosthesis are obtained by guiding the ideal side appearance contour and the three-dimensional shape of the middle part of the surface; the prosthesis is composed of an inner wing, an outer wing, an isthmus part and a lower edge, wherein the inner wing part extends to the area beside the nose; the outer wing part is distributed along the zygomatic maxillary strut; the distance between the lower edge and the upper tooth root tip is not less than 5mm; the isthmus needs to avoid the suborbital foramen. Compared with a traditional titanium fixing plate, the elastic modulus of polyether-ether-ketone is close to that of the jaw bone, and the stress shielding effect can be reduced. The personalized polyetheretherketone prosthesis is designed according to the shape of the bone section end of the maxilla after the operation, the bone blocks of the upper section and the lower section of the maxilla are integrally fixed, errors generated by bending a titanium plate in the operation are avoided, and the accuracy and stability of bone block movement and positioning are ensured.

The present invention pertains to the field of medical devices, and in particular relates to a biological patellar groove replacement assembly and an operation method. The biological patellar groove replacement assembly includes a prosthesis, a trial implant and a base block. The trial implant has an upper surface generally coinciding and height consistent with those of the prosthesis and can be used to simulate a mounting orientation of the prosthesis. Tuning holes in the trial implant can be used to preliminarily position the trial implant and facilitate tuning of its orientation. Drilling shafts can be inserted into locating holes in the trial implant and first and second locating holes in the base block and then used to drill first and second mounting holes in an osteotomy surface of a femur, enabling accurate positioning of the base block and the prosthesis. In this way, a positional match between the mounting holes in the osteotomy surface of the femur and mounting pegs on the prosthesis can be ensured, which in turn better ensures that the prosthesis can be mounted at an orientation determined by the trial implant, effectively improving the success of a procedure for implanting the prosthesis.

This invention discloses an implant for lower eyelid enhancement, adapted for implantation below the orbicularis oculi muscle of the lower eyelid. The implant is elongated with a triangular cross-section, the triangle having three corners. In the implanted state, the implant maintains a triangular shape with one corner pointing upwards, used to support and elevate the lower eyelid; the maximum width of the cross-section does not exceed 3mm. The implant of this invention can restore the mountain-like structure of the lower eyelid when viewed from the side, without widening. Its small volume and upward-pointing shape effectively avoid the risk of the upper edge of the implant pressing upwards and causing induced trichiasis.

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 method of assembling a prosthetic valve includes threading a primary suture in an in-and-out pattern through a cusp end portion of a leaflet, approximating the cusp end portion with the primary suture threaded there-through to at least one strut of a frame of the prosthetic valve, and stitching a secondary suture through the primary suture and around the at least one strut in a manner that forms a plurality of self-tightening constructs. Each self-tightening construct is formed to include at least one loop configured to constrict under tension around the strut.

An implantable prosthetic valve that is radially collapsible to a collapsed configuration and radially expandable to an expanded configuration includes an annular frame having an inflow end, an outflow end, and a longitudinal axis. A leaflet structure is positioned within the frame and secured thereto, and a sealing element is secured to the frame. The sealing element includes a first woven portion extending circumferentially around the frame. The first woven portion includes a plurality of interwoven filaments. The sealing element further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. At least a portion of the filaments exit the weave of the first woven portion and form loops extending radially outwardly from the frame.

This invention discloses an implant for lower eyelid enhancement, adapted for implantation below the orbicularis oculi muscle and above the tarsal plate. The implant is elongated, with a cross-section of a triangular structure with three sides concave inward. The triangular structure has three corners; in the implanted state, one corner faces upward to support and elevate the lower eyelid. The implant of this invention can recreate the mountain-like structure of the lower eyelid when viewed from the side. Its small size and effective corner support effectively avoid the risk of the upper edge of the implant pressing upward and causing ingrown eyelashes.

Systems and methods for implantation of an intervertebral disc prosthesis include the prosthesis, a cartridge, and an instrument. Prior to implantation of the prosthesis, the cartridge receives and engages with the prosthesis to form an assembly. In addition, the instrument receives the assembly within an opening in an outer housing and engages the cartridge with a coupler of a locking shaft. Following implantation of the cartridge, actuation of a release driver causes an expansion bit of the release driver to engage release tabs on the cartridge to cause the cartridge to disengage from the prosthesis. The systems and methods optionally include a trial implant and / or an osteotome for trialing prior to implantation of the prosthesis.

Disclosed herein is an implantable prosthetic valve, the implantable prosthetic valve comprising: an annular frame, the annular frame comprising a plurality of struts; a valvular structure, the valvular structure comprising one or more leaflets, each leaflet having an inner surface and an outer surface and positioned at the inner surface of the annular frame; wherein at least a portion of an edge portion of the one or more leaflets is attached to at least a portion of the plurality of struts of the annular frame in a suture-free manner with an adhesive composition to form a coupling portion, wherein the coupling portion encloses the at least a portion of the plurality of struts and seamlessly extends into the at least a portion of the edge portion of the one or more leaflets. The invention further discloses a manufacturing method.

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.