23 results about "Prosthesis Fixation" patented technology

The invention discloses a data processing method and device for a prosthesis fixing nail, a storage medium and electronic equipment. The method comprises the following steps: performing three-dimensional reconstruction according to medical image data of a target object and an acetabular cup prosthesis to obtain an initial three-dimensional model; according to a current nail hole of the acetabular cup prosthesis in the initial three-dimensional model, generating a first implantation parameter of a first fixing nail; according to the first implantation parameter, performing simulated implantation operation in the initial three-dimensional model to obtain a simulated three-dimensional model; and performing safety evaluation on the simulated three-dimensional model, and determining target implantation parameters of the fixing nails of the acetabular cup prosthesis according to the first implantation parameters under the condition that a safety evaluation result represents that the safety evaluation is passed. According to the method and the device, the problem that the accuracy of determining the implanting position and direction of the fixing nail is relatively low due to the fact that the implanting position and direction of the fixing nail of the acetabular cup are determined depending on artificial experience in related technologies is solved.

A flanged healing abutment for securing to an implant that has a bone graft. The flexible flange extends out laterally from the healing abutment body to contact the adjacent gingiva. The flange securely contacts the gingiva in a manner that contains the bone graft, and prevents bacterial infection of the bone graft. The flanged abutment is also able to form gingival emergence profiles. A method for securing a prosthesis to an implant utilizing a flanged healing abutment is also provided.

The utility model provides a multifunctional breast cancer postoperative corset for preventing upper limb lymphedema, which comprises a pressurizing chest strap, two ends of the pressurizing chest strap are detachably connected with each other, breast areas on two sides of the pressurizing chest strap are respectively provided with a breast nursing cover, and the bottom of each breast nursing cover is provided with a nursing window capable of being opened and closed; the two shoulder straps are arranged at the positions, corresponding to shoulder blades, of the pressurizing chest strap respectively, and the front end of each shoulder strap extends to the breast position of the pressurizing chest strap and is detachably connected with the pressurizing chest strap; the two low-elasticity oversleeves are located on the two sides of the pressurizing chest strap respectively, and the low-elasticity oversleeves are used for being arranged on the arms in a sleeving mode; the shoulder part of each low-elasticity oversleeve is detachably connected with the shoulder strap on the corresponding side through a connecting strap. The problem of edema of the upper limb of the affected side of a postoperative patient can be solved, the uninjured-side low-elasticity oversleeve can be converted into a prosthesis fixing band and an affected-side upper limb restraint band, and adaptability is high.

This application provides a knee femoral prosthesis. The knee femoral prosthesis includes: an anterior portion configured for fitting onto the distal anterior condylar osteotomy surface of the femur; a posterior portion configured for fitting onto the distal posterior condylar osteotomy surface of the femur; a middle portion configured to connect the anterior and posterior portions; and at least two through-holes configured to receive fasteners to secure the knee femoral prosthesis to the distal femur. The at least two through-holes include through-holes whose bore axes intersect or are opposite to each other. Using the knee femoral prosthesis according to this application, a more targeted prosthesis fixation strategy can be provided based on the patient's individual condition, thereby achieving better initial prosthesis stability. Furthermore, this application also relates to a knee prosthesis system incorporating this prosthesis.

The invention relates to a prosthesis retaining plug (200) for securing a prosthesis (302) comprising polymer material to a bone. The prosthesis retaining plug comprises a body (202) having a first end (208) and a second end (210), the first end insertable into a cavity in the bone, and the second end having an opening (204) adapted to receive at least a portion of the prosthesis. The body comprises a polymeric material having a repeat unit of formula (1) where t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2, and at least a portion of the body is resiliently deformable to receive said portion of the prosthesis.

The invention relates to a prosthesis retaining plug (200) for securing a prosthesis (302) comprising polymer material to a bone. The prosthesis retaining plug comprises a body (202) having a first end (208) and a second end (210), the first end insertable into a cavity in the bone, and the second end having an opening (204) adapted to receive at least a portion of the prosthesis. The body comprises a polymeric material having a repeat unit of formula (1) where t1 and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2, and at least a portion of the body is resiliently deformable to receive said portion of the prosthesis.

The invention discloses a novel mandible prosthesis based on 3D printing, which comprises a prosthesis main body, a dental implant abutment and a fixing assembly, the dental implant abutment is arranged on the top surface of the prosthesis main body, and the fixing assembly is used for connecting the prosthesis main body with a first mandible and a second mandible; the fixing assembly comprises a fastening screw, a pre-embedded nut and an expansion sleeve, preformed holes are formed in the contact faces of the first mandible and the second mandible and the prosthesis body, the expansion sleeve is arranged in the preformed holes, the pre-embedded nut is screwed in the expansion sleeve, and the expansion sleeve deforms under extrusion of the pre-embedded nut so as to be expanded in the preformed holes. Connecting holes corresponding to the preformed holes are formed in the two sides of the prosthesis main body, the fastening screws are screwed in the connecting holes, and the tail ends of the fastening screws are fixedly connected with the embedded nuts. Reasonable structural design can be carried out on the mandible prosthesis fixing device and the dental implant abutment by utilizing the characteristics of a 3D printing technology, the structure is simple, the installation is quick, the stability is good, and meanwhile, the convenience and success rate of an operation can be improved.

Systems and methods recited herein provide for affixation of a prosthetic valve to surrounding tissue, by at least one anchor and an anchor deployment device. The surgical anchor includes a distal end tapered to a distal tip configured to pierce and anchor into tissue; a proximal head; and a tension component integrally connected with the distal end and the proximal head; wherein the tension component is configured to exert a force on the proximal head when the distal end is anchored into the tissue.

The application relates to the field of medical devices, in particular to a heart implant, which comprises an anti-reflux prosthesis, a fixing member and a limiting member, the anti-reflux prosthesis is anchored on atrial tissue through the fixing member, one end of the limiting member is connected with the anti-reflux prosthesis, and the other end of the limiting member is fixed on apical tissue, the anti-reflux prosthesis comprises a closing aid and a barrier, the distal end of the barrier is fixed on the middle region of the closing aid, the proximal end of the barrier is connected with the limiting member, and the proximal end part of the closing aid is free; the application not only can increase the coaptation area with adjacent native leaflets to achieve ideal repair effect, but also can avoid the closing aid from floating into the atrium, and has good clinical significance.

A method of side-suturing a prosthetic to human tissue is disclosed. The method includes accessing a surgical site on a body portion of a patient; identifying the human tissue within the surgical site; endomechanically positioning the prosthetic adjacent the human tissue within the surgical site; aligning a surgical tool proximate the tissue with the prosthetic between the tool and the tissue, the surgical tool having an elongated member with distal and proximal ends; actuating the surgical tool in-situ to drive deployment members of the surgical tool outwardly away from the surgical tool, through the prosthetic and into the tissue; and retracting the deployment members back into the surgical tool, whereby the deployment members deploy a fastener to fixatedly suspend the prosthetic to the human tissue.

A dental engraving and milling machine includes a housing, a controller, an X-axis moving assembly, a Z-axis moving assembly, a Y-axis moving assembly, a first A-axis moving assembly, a second A-axis moving assembly, and a B-axis moving assembly. When a dental prosthesis blank needs to be processed, the B-axis moving assembly is driven by the X-axis moving assembly to move, and the first A-axis moving assembly and the second A-axis moving assembly are driven to reach a required height. The Z-axis moving assembly is driven by the Y-axis moving assembly to move in a Y-axis direction. Before the Z-axis moving assembly is made to reach a first dental prosthesis fixture or a second dental prosthesis fixture, a cutting spindle is driven by the Z-axis moving assembly to move in a Z-axis direction, thereby processing the dental prosthesis blank through a tool on the cutting spindle.

The utility model provides a personalized mandible prosthesis which can be fixed more stably and has more excellent biocompatibility, and relates to the technical field of prostheses. The personalized mandible prosthesis comprises a main body part matched with a mandible defect part and fixing ear plates arranged at the two ends of the main body part respectively to be connected with a mandibular branch, and the main body part is of a hollow structure and comprises a mandibular bottom area shell and a mandibular top area shell located above the mandibular bottom area shell; porous structure layers are arranged on the two sides of the lower jaw bottom area shell, a plurality of suture holes are further formed in the two sides of the lower jaw top area shell, and the lower jaw top area shell is of a single-layer net structure and comprises a plurality of mutually-connected composition rods. The prosthesis disclosed by the utility model is longer in service life and better in mandible repairing effect.

A prosthesis kit 100 for fixing a prosthesis to a bone, comprising: a mounting plate 200 for coupling to the bone; a prosthesis 102 for coupling to the mounting plate, comprising a body 104, shaped to

The invention is suitable for the technical field of medical instruments, and provides a universal joint screw for fixing an acetabular prosthesis and a using method thereof.The universal joint screw comprises a main body assembly and a connecting assembly, the main body assembly comprises a screw body and a self-tapping head, and the connecting assembly comprises a first fixing block, a first connecting base, a universal joint, a second connecting base and a second fixing block; the first fixing block and the second fixing block are respectively connected with the screw body and the self-tapping head; the first connecting seat and the second connecting seat are both connected with the universal joint; the universal joint is movably connected with the first connecting base and the second connecting base in a multi-angle rotating mode and used for adjusting the relative position of the screw body and the self-tapping head in the screw screwing-in process. The universal joint is constructed in the long acetabular screw, long-distance fixing of the long screw perpendicular to the acetabular prosthesis is achieved, the mechanical stability of the acetabular prosthesis is improved, the fixing failure risk is reduced, the reoperation probability is reduced, reliable fixing of the rebuilt acetabular prosthesis can be rapidly and accurately completed, the operation efficiency is improved, and postoperative rehabilitation of a patient is accelerated.

The invention provides an anti-dislocation ankle joint tibia prosthesis assembly, and belongs to the technical field of orthopedic medical instruments. Comprising an ankle joint tibia prosthesis assembly and an auxiliary positioning assembly used for conducting auxiliary installation on the ankle joint tibia prosthesis assembly, the ankle joint tibia prosthesis assembly comprises a tibia tray, an embedded part and a chamfer cutting talus part, and the embedded part is located between the tibia tray and the chamfer cutting talus part; mounting columns for mounting the tibia and the talus are symmetrically arranged above the tibia tray and on the outer wall of one side of the bottom of the chamfer cutting talus part, an anti-dislocation limiting part is arranged in each mounting column, and anti-dislocation self-resetting structures are arranged on the embedded part and the chamfer cutting talus part close to the outer edge; the innovative design that the hollow mounting column is matched with the expansion limiting piece is combined with the nickel-titanium memory alloy material, the fixing stability of the prosthesis is remarkably improved, dislocation can be effectively prevented through the unique self-resetting structure, the secondary operation requirement is reduced, and the postoperative life quality of a patient is improved.

The invention relates to a female part (16) for forming a detachable connection between a prosthesis (13) and a counter-piece (2) which can be secured in the mouth, the female part (16) having a housing (12) and an insert (11). The housing (12) can be fixed to the prosthesis (13) and has a closed housing terminating face (21), on the edge of which a housing collar (18) is circumferentially provided, and the interior (17) has an inner thread (22) and, in an outer region facing the opening (55) of the interior (17), a conical contact inner surface (19). The insert (11) has an insert terminating face (42), on the edge of which an insert collar (33) is provided, the insert collar having an at least partly curved contact surface (41), which transitions into a free inner surface (40) via an undercut (58), and having at least one slot (43) extending in the axial direction, and the insert (11) has an outer thread (36) in the region of the insert terminating face (42), the outer thread being used to screw the insert (11) into the inner thread (22) of the housing (12).

The application provides an anti-dislocation ankle joint tibial prosthesis assembly, and belongs to the technical field of orthopedic medical instruments. The anti-dislocation ankle joint tibial prosthesis assembly comprises an ankle joint tibial prosthesis assembly and an auxiliary positioning assembly used for assisting in installation of the ankle joint tibial prosthesis assembly. The ankle joint tibial prosthesis assembly comprises a tibial tray, an embedded part and a chamfered cutting talus part. The embedded part is located between the tibial tray and the chamfered cutting talus part. The tibial tray and the bottom side outer wall of the chamfered cutting talus part are symmetrically provided with installation columns used for installation of tibia and talus. Each installation column is internally provided with an anti-dislocation limiting part. The embedded part and the chamfered cutting talus part are provided with an anti-dislocation self-resetting structure near the outer edge. The hollow installation column cooperates with the innovative design of the expansion limiting part, and is combined with a nickel-titanium memory alloy material, so that the prosthesis fixing stability is significantly improved. The unique self-resetting structure can effectively prevent dislocation, reduce the need for secondary surgery, and improve the postoperative life quality of patients.

The invention relates to the field of hip joint bone tumor replacement, in particular to an articular surface retaining type extendable proximal femur tumor prosthesis which comprises an upper femur section, a medullary cavity extension handle and an adjusting assembly, the upper femur section is used for being connected to the proximal femur, the medullary cavity extension handle is used for being connected to a femur body, and the adjusting assembly is connected between the upper femur section and the medullary cavity extension handle and can adjust the distance between the upper femur section and the medullary cavity extension handle. The adjusting assembly comprises an adjusting shaft, a locking pin, a driving shaft, a fixing nut and the like. The thighbone upper section comprises a working section, an ox horn, a fixing steel plate and a fixing nail, and a bone trabecula layer structure is arranged on part of the surface; the medullary cavity extension handle is provided with a bone filling area, a stand column and a spring column are arranged in the bone filling area, and a bone trabecula sleeve is sleeved outside the bone filling area. According to the femoral prosthesis, the technical effects that the femoral length can be effectively adjusted, the femoral prosthesis can better adapt to the physical condition of the patient, bone growth and prosthesis fixation are promoted through the design of the bone trabecula layer structure, the bone filling area and the like, and the treatment effect and the rehabilitation quality of the patient are improved are achieved.

This application discloses a data processing method, apparatus, storage medium, and electronic device for a acetabular cup fixation screw. Relating to the field of medical technology, the method includes: performing three-dimensional reconstruction based on medical imaging data of the target object and the acetabular cup prosthesis to obtain an initial three-dimensional model; generating first implantation parameters for a first fixation screw based on the current screw holes of the acetabular cup prosthesis in the initial three-dimensional model; performing a simulated implantation operation in the initial three-dimensional model based on the first implantation parameters to obtain a simulated three-dimensional model; conducting a safety assessment on the simulated three-dimensional model, and, if the safety assessment result indicates that the safety assessment is passed, determining the target implantation parameters for the acetabular cup fixation screw based on the first implantation parameters. This application solves the problem in related technologies where the determination of the implantation position and orientation of the acetabular cup fixation screw relies on human experience, resulting in low accuracy in determining the implantation position and orientation.

A tibial component includes a baseplate component that has an articular side and a bone contact side opposite the articular side. A peg extends from the bone contact side such that an acute angle is formed between a longitudinal axis of the peg and the bone contact side of the baseplate component. The peg includes a distal tip, an anterior portion, and a posterior portion. The distal tip defines a first radius of curvature, the anterior portion has a spherical portion that defines a second radius of curvature and extends from the distal tip, and the posterior portion has a conical portion that defines a taper angle relative to a longitudinal axis of the peg and extends from the distal tip.

A delivery device system and method for delivering an endoluminal prosthesis to patient. The delivery device has an inner cannula; a prosthesis retention region in a proximal region of the delivery device; a positioner catheter disposed at least partially coaxially over the inner cannula and having an inner lumen, a sidewall and a hole disposed within the side wall; a sheath hub having an inner chamber configured to receive flushing fluid from a flushing port in fluid communication with the inner chamber; a sheath disposed at least partially coaxially over the positioner, the inner cannula, and the prothesis retention region and extending from a proximal end of the sheath hub, the sheath having an open distal end in fluid communication with the inner chamber; an annular space between the inner cannula and the positioner in fluid communication with the inner chamber and the hole; and an annular space between the positioner and the sheath in fluid communication with the inner chamber and the hole. Upon injection of a flushing fluid into the inner chamber annular space between the positioner and the sheath is configured to receive fluid from the chamber and the annular space between the inner cannula and the positioner and the lumen of the positioner are configured to receive fluid from the chamber through the hole whereby residual air in the system is reduced. A method for reducing air in the delivery system is also provided.

The invention relates to a tackle prosthesis (1) adapted to accommodate the patella of a diseased animal. The prosthesis comprises a fixing device (7) capable of fixing the prosthesis to the femur and a pulley extension (5) defining an extension of the prosthesis. The shape of the prosthesis (1), and in particular the shape of the trochlea extension (5), makes it possible to accommodate the prosthesis (1) on the trochlea groove of the affected animal while retaining a majority of the femoral trochlea and a majority of the femoral condyle. The invention also relates to a device for implanting such a prosthesis (1), comprising a guide assembly (9) capable of precisely positioning a guide wire (23) serving as a reference for removing a bone part of the femur in order to obtain a flat surface on which a drilling centering fixture (27) is placed, a seating part for the fixing device (7) is formed by the drilling centering clamp (27). The invention also relates to a kit for securing said prosthesis.

The invention provides a reconstruction prosthesis for a proximal femur bone defect part and application of the reconstruction prosthesis. The reconstruction prosthesis covers one end, close to a femoral head prosthesis, of a femoral stem prosthesis, and comprises a main body part, the main body part is of a multi-layer pore structure and is provided with a through hole, and the main body part comprises a connecting end used for being inserted into a marrow cavity of a femur and a filling end matched with the anatomical form of a proximal bone defect part of the femur in the extending direction of the main body part, the femoral stem prosthesis is inserted into the through hole; the metal cylinder is arranged in the main body part and divides the main body part into an inner side main body part and an outer side main body part along the thickness direction; and the bone cement connecting piece is formed by bone cement filled in the inner side main body part and is used for connecting the femoral stem prosthesis with the metal cylinder and fixing the femoral stem prosthesis. The reconstruction prosthesis provided by the invention is applied to an orthopedic hip joint prosthesis revision operation, and has the advantages of good bone defect filling effect and good hip joint prosthesis fixing effect.