385 results about "Joint prosthesis" patented technology

An orthopaedic implant includes a tibial component having a metal base with a polymer bearing molded thereto. A method for making a tibial component is also disclosed.

The invention relates to the technical field of joint prostheses, in particular to an ankle joint prosthesis implantation system based on zirconium-niobium alloy, which comprises a tibia prosthesis (10), a talus prosthesis (30) and a liner (20), the tibia prosthesis (10) and the talus prosthesis (30) are both made of zirconium-niobium alloy material and are integrally formed by 3D printing, the tibia prosthesis (10) comprises a tibia body (101), and the liner (20) is arranged on the tibia body (101). The first bone contact layer (100) is integrally formed on the tibia body (101), and the first bone contact layer (100) is of a porous structure of which the pore diameter is gradually reduced from outside to inside; the talus prosthesis (30) comprises a talus body (301) and a second bone contact layer (300) integrally formed on the talus body (301), and the second bone contact layer (300) is of a porous structure with the aperture gradually reduced from outside to inside.

An orthopaedic joint prosthesis assembly includes a head part of an orthopaedic joint prosthesis component and an alignment guide. The head part has a spherical bearing surface for articulation with a corresponding joint surface, and an assembly surface having a first bore formed in it for receiving a spigot on another part of the orthopaedic joint prosthesis. The bore has a first axis that extends perpendicular to the assembly surface. The alignment guide has an axial portion defining a second axis and an arm extending from the axial portion. The arm includes a distal portion which is configured to engage the assembly surface, with the axial portion being arranged to engage the bearing surface of the head part when the head part is mounted within the guide such that an impaction force applied along the second axis is directed along the first axis.

The invention discloses a low-speed reciprocating type curved surface friction testing machine for simulating human knee joints, and relates to the technical field of testing material friction performance, the low-speed reciprocating type curved surface friction testing machine comprises a machine body, the machine body is movably provided with an upper clamping assembly for clamping an upper experiment piece and a lower clamping assembly for clamping a lower experiment piece; the machine body is also provided with a lifting driving mechanism for driving the lower clamping assembly to move upwards, and the lifting driving mechanism drives the lower experiment piece to ascend to enable the top of the lower experiment piece to abut against the bottom of the upper experiment piece with preset pre-pressure so as to simulate the load state of the knee joint of the human body; the machine body is further provided with a swing driving device for driving the upper clamping assembly to swing back and forth, and the swing driving device drives the upper experiment piece to swing back and forth so that friction can be formed between the upper experiment piece and the lower experiment piece to simulate friction movement of the knee joint of the human body. Friction movement of a human knee joint in a load state is simulated, so that an in-vitro experiment on a human knee joint prosthesis material is realized, and medical negligence caused by unqualified materials is avoided.

The invention discloses an artificial intelligence-assisted standard artificial temporomandibular joint automatic placement method. The method comprises the following steps: training a three-dimensional reconstruction model used for extracting a mandible and zygomatic bone zygomatic arch joint prosthesis placement area; based on an improved 3D U-Net neural network, carrying out segmentation extraction on the interested areas of the glenoid fossa and the mandibular branch, and obtaining a space geometric structure for prosthesis installation; the method comprises the following steps: extracting outer bone surface point cloud data of a zygomatic arch and a mandibular ramus on the basis of a space geometric structure of prosthesis installation, identifying anatomical key points, and generating a standard prosthesis fitting surface through geometric fitting and constrained optimization; determining the relative position relation between the maxillary joint fossa prosthesis and the mandibular branch prosthesis, and determining the installation direction, the hole position definition and the assembly reference point; and determining a contact area, a posture direction and a placement position of the prosthesis, and completing three-dimensional positioning and posture matching of the prosthesis in the patient model as a surgical planning scheme.

The invention relates to a hip joint prosthesis peripheral fracture steel plate cable binding and fixing device which comprises a head portion at the near end and a body portion at the far end, and the head portion and the body portion are integrally arranged. The inner surfaces of the head part and the body part are arc-shaped curved surfaces which are tightly attached to the outer surface of the thighbone of a human body; the head is of an anatomical structure matched with the physiological appearance of the outer side face of the greater trochanter of the femur. The body part is of an anatomical structure matched with the physiological shape of a thighbone body at the proximal end of the thighbone; at least one clamping hook is arranged at the near end of the head part, and the clamping hook is in an anatomical radian shape attached to the outer side of the top end of the major trochanter; and the body part is provided with a plurality of lock hole structures. The device is placed on the outer side face of the femur with the vertex of the greater trochanter as a mark; the device is suitable for patients who fail in internal fixation in a proximal femur fracture operation and need revision and suffer from fracture around a femur prosthesis after a joint replacement operation, at least one clamping hook is specially arranged at the proximal end of the head, a fracture block can be grabbed through the clamping hook, and reduction failure is avoided.

The invention provides an elbow joint prosthesis installation position evaluation method and device, electronic equipment, a storage medium and a program product, and the method comprises the steps that an elbow joint biomechanical model of an implanted prosthesis is constructed, and the model comprises a skeleton prosthesis model and a muscle model which are coupled, the skeleton prosthesis model comprises a humerus prosthesis equivalent mass block and an ulna prosthesis equivalent mass block; acquiring a plurality of pieces of to-be-evaluated position data of the prosthesis rotation axis, wherein each piece of to-be-evaluated position data is used for representing a to-be-evaluated position of the prosthesis rotation axis between the two prosthesis equivalent mass blocks; for each piece of to-be-evaluated position data, based on a prosthesis rotation axis corresponding to the to-be-evaluated position data, performing motion simulation calculation on the elbow joint biomechanical model implanted with the prosthesis by using a dynamics method to obtain muscle force data of reference muscles in the muscle model; and determining an evaluation result of each piece of to-be-evaluated position data according to the muscle force data corresponding to each piece of to-be-evaluated position data.

An orthopaedic knee prosthesis includes a femoral component and a tibial insert including a post. The femoral component is configured to articular on the tibial insert. The post of the tibial insert includes features that facilitate the medial pivoting of the femoral component through a range of flexion.

An implant part for an orthopedic knee joint prosthesis has a surface region which faces and contacts bone in an implanted state. A least part of the implant part is made from a plastics material, in particular polyether ether ketone or polyether ether ketone composite material. The implant part has a three-dimensional surface structure in the surface region facing the bone. The three-dimensional surface structure includes a rib structure, a first rib portion extending in a plane on a surface of the surface region, or a first rib of the rib structure extending in the plane on the surface of the surface region, and a second rib portion extending in the plane on the surface of the surface region, or a second rib of the rib structure extending in the plane on the surface of the surface region extending in the plane in different directions, at least in portions.

The invention discloses a method for generating a simulated X-ray image in hip joint prosthesis planning and electronic equipment. The method comprises the steps that a left thighbone model, a right thighbone model and a three-dimensional CT image are acquired; processing the three-dimensional CT image based on the left thighbone model and the right thighbone model to obtain a first image, a second image and a third image; determining all first voxels located in the prosthesis model based on the third image and the prosthesis model, and setting the colors of all the first voxels as the colors corresponding to the prosthesis model to obtain a fourth image; and synthesizing the first image, the second image and the fourth image to obtain a simulated three-dimensional CT image. According to the method, the fourth image is obtained by setting the colors of all the first voxels as the colors corresponding to the prosthesis model, and the hip joint prosthesis planning result can be presented to the user for reference through the simulated three-dimensional CT image.

The utility model provides a multi-curvature ankle joint prosthesis which comprises a tibia prosthesis connected with a tibia, a talus prosthesis connected with a talus and a cushion block with one side connected with the tibia prosthesis, a joint contact surface is arranged on the other side of the cushion block, and a talus contact surface matched with the joint contact surface is arranged on one side of the talus prosthesis. The curvature of the sagittal plane Z in the talus contact face is reduced from front to back, and the instantaneous rotation center of the talus prosthesis on the joint contact face is in an arc shape. According to the multi-curvature ankle joint prosthesis, the talus contact face and the anatomical structure of the human body are high in consistency, the natural form and the motion mode of the ankle joint are accurately restored, the ankle joint prosthesis better conforms to biomechanics and kinematics in the motion process, the motion stability of the human body is improved, local friction stress of the ankle joint prosthesis is smaller, and the ankle joint prosthesis is more stable in motion. And the service life of the ankle joint prosthesis is prolonged, so that the durability of the ankle joint prosthesis is improved.

The invention relates to an orthopaedic knee joint prosthesis (2) having a metallic femoral implant part (4), a metallic tibial implant part (6) and a meniscus replacement part (8); according to the invention, it is proposed that the femoral implant part (4) and in particular also the tibial implant part (6) are manufactured additively by metallic 3D printing, that the femoral implant part (4) and / or the tibial implant part (6) have / has a three-dimensionally porous surface structure (30, 32) formed by the 3D printing, in surface regions (10, 16) facing the bone, to allow incorporation of the bone into the implant part (4, 6), and that the femoral implant part (4) and / or the tibial implant part (6) have / has at least in some areas a coating (52, 54) in surface regions (14, 20) not in contact with the bone and not in contact with the meniscus replacement part (8) but in contact with soft tissue, by means of which coating a surface roughness of these surface regions (14, 20) is reduced.

A joint socket (2) for a joint prosthesis (1) that can be fixed in a bone structure (6) and has a socket insert (3) for receiving at least a partially spherical joint body, wherein the joint socket (2) has at least one projection (7) facing the bone structure (6) and designed to engage in a groove-shaped recess (9) of the bone structure (6) that is radially spaced from a recess (8) for the socket insert (3) in the bone structure (6), which surrounds the socket insert (3) circumferentially, in particular concentrically, and wherein the projection (7) has at least a partially convex outer surface (10) and a concave inner surface (11) so that the projection (7) can be inserted into the groove-shaped recess (9) in a form-fitting manner with the outer surface (10) and the inner surface (11), characterized in thatthat the socket (2) has a retaining frame (14) with a passage width (D) that is variable, in particular against an elastic restoring force, and is less than the great circle diameter of the socket insert (3), and two projections (7) which are spaced apart from each other in the circumferential direction within an annular area limited by the outer contour and by the inner contour, and the retaining frame (14) in turn has two projections (7') which are connected flush with the two projections (7) of the socket (2).

Femoral implant part (4) or tiboral implant part (6) for an orthopedic knee joint prosthesis (2), wherein the implant part (4) has at least one surface area (10, 12) facing the bone and in contact with the bone in the implanted state, wherein the implant part (4) is at least partially, at least the surface area (10, 12) in contact with the bone, made of a plastic, in particular polyetheretherketone (PEEK) or a polyetheretherketone (PEEK) composite material. The implant part (4) has a three-dimensional surface structure (22, 24) in the surface area (10, 12) facing the bone.The three-dimensional surface structure (14) comprises a rib structure (26), wherein a first rib section (30) extending in a plane on a surface of the surface region (10, 12) or a first rib (28, 28-1) of the rib structure (26) extending in a plane on the surface of the surface region (10, 12) and a second rib section (30) extending in a plane on the surface of the surface region (10, 12) or a second rib (28, 28-2) of the rib structure (26) extending in a plane on the surface of the surface region (10, 12) extend in a plane at least sectionally in different directions.

The invention relates to the technical field of joint prostheses, in particular to an ankle joint prosthesis based on a bionic bone trabecula, the ankle joint prosthesis comprises a tibia prosthesis (10), a talus prosthesis (30) and a liner (20), the tibia prosthesis (10) and the talus prosthesis (30) are both made of metal materials and are integrally formed through 3D printing, the tibia prosthesis (10) comprises a tibia body (101), and the liner (20) is arranged on the tibia body (101). The first bone contact layer (100) is integrally formed on the tibia body (101), and the first bone contact layer (100) is of a porous structure of which the pore diameter is gradually reduced from outside to inside; the talus prosthesis (30) comprises a talus body (301) and a second bone contact layer (300) integrally formed on the talus body (301), and the second bone contact layer (300) is of a porous structure with the aperture gradually reduced from outside to inside.

The invention discloses an artificial joint frictional wear simulation testing machine and a testing method thereof. The testing machine comprises a motion loading module, a sample clamping module and a motion coupling module, the motion loading module mainly drives an upper sample of the sample clamping module to generate fundamental frequency swing through a double four-bar-planetary gear train composite mechanism, and the sample clamping module integrates a quick disassembly and assembly clamp and a temperature control lubrication system to fix various joint prostheses and simulate the physiological environment of the human body. And the motion coupling module cooperates with the motion loading module based on the six-degree-of-freedom parallel platform to realize composite action and suppress vibration interference. Through cooperative control of the three modules, the problems that an existing artificial joint friction and wear simulation testing machine is limited to a single joint type and cannot adapt to various artificial joint prostheses, and the degree of freedom of motion is limited, so that various motion forms of the artificial joint cannot be completely restored are solved.

Kits and methods for use in intraoperative trialling of hip prostheses to determine an appropriate length for the femoral neck component of a prosthetic hip joint, are described. A kit for use in selecting a femoral neck component of an orthopaedic joint prosthesis kit comprises a first and a second broach. Each of the first and second broaches has a neck connection element comprising a projection extending from a proximal surface of the broach, each projection having a length. The projection on the first broach has a different length than the projection on the second broach. The kit also includes a trial femoral neck component having a neck connection element in the form of a recess in a distal surface. The recess is configured to mate with the projection on each of the first or second broaches such that mating of the trial femoral neck component with the first broach provides an assembly with a first neck length, and the mating of the trial femoral neck component with the second broach provides an assembly with a second neck length.

The invention relates to a hip joint prosthesis. The hip joint prosthesis comprises an interstitial acetabular prosthesis and a femoral head reconstruction device. The interstitial acetabular prosthesis is stably connected with a pelvic acetabular fossa through the interstitial acetabular cup, the fixing screw and the interstitial acetabular lining, and adaptability and stability are enhanced through multiple designs such as petal openings and damping parts; the femoral head reconstruction device comprises a joint friction surface prosthesis and a bone ingrowth supporting cage frame, and reconstruction and stable supporting of the femoral head are achieved. According to the hip joint prosthesis, the technical effects of improving the stability and durability of the hip joint prosthesis, reducing postoperative discomfort of a patient and promoting bone tissue growth are achieved.

The ankle joint prosthesis comprises a tibia prosthesis and a talus prosthesis, the tibia prosthesis is provided with a keel, the keel is used for being implanted into a tibia and extends in the front-back direction of the tibia prosthesis, the talus prosthesis is arranged on the lower side of the tibia prosthesis, the talus prosthesis is provided with a fixing rod, and the fixing rod is arranged on the lower side of the tibia prosthesis. The fixing rod is used for being implanted into the talus and obliquely extends downwards from front to back, an included angle alpha is formed between the extending direction of the keel and the extending direction of the fixing rod, and alpha is larger than or equal to 10 degrees and smaller than or equal to 85 degrees. The ankle joint prosthesis is reasonable in structural design, the stability of the ankle joint prosthesis in the human body movement process can be enhanced, and the dislocation risk of the prosthesis is reduced.

The invention provides a hip joint prosthesis. The hip joint prosthesis comprises a femoral stem body; the driving part is arranged on the femoral stem main body; the transmission part is movably arranged in the femoral stem main body, and the driving part drives the transmission part to move; the plug connector is telescopically arranged on the femoral stem main body to have a plug-in position and a first storage position, and the transmission part moves to drive the plug connector; when the plug connector is located at the plug-in position, the plug connector extends out of the femoral stem main body; when the plug connector is located at the first storage position, the plug connector retracts into the femoral stem main body; the force measuring piece comprises a dynamometer and a first elastic piece connected to the dynamometer, the dynamometer is movably arranged in the femoral stem body, and the dynamometer drives the first elastic piece to stretch out and draw back on the femoral stem body so that the first elastic piece can have a force measuring position and a second containing position. According to the technical scheme, the problem that the hip joint prosthesis in the related technology cannot give consideration to the stability after implantation and the convenience of later maintenance at the same time is solved.

The invention relates to an orthopedic knee joint prosthesis (2) comprising a metallic femoral implant part (4), a metallic tiboral implant part (6), and a meniscus replacement part (8) which forms a sliding partner for the femoral implant part (4) and is held on the tiboral implant part (6), wherein the femoral implant part (4) in the implanted state has surface areas (10) facing the bone and in contact with the bone, wherein the femoral implant part (4) in the implanted state has articulating condylar surface areas (12) in sliding contact with the meniscus replacement part (8) as a sliding partner, wherein the tiboral implant part (6) in the implanted state has surface areas (16) facing the bone and in contact with the bone, and wherein the tiboral implant part (6) in the implanted state has surface areas (18) in contact with the meniscus replacement part (8).wherein the femoral implant part (4) and the tiboral implant part (6) each have surface areas (14, 20) in the implanted state that are not in contact with the bone or the meniscus replacement part, but are in contact with the soft tissue, wherein the femoral implant part (4) has at least a hardening and wear-reducing, in particular multilayer, coating (38) on the articulating condylar surface areas (12) that are in sliding contact with the sliding partner; according to the invention, it is proposed that the femoral implant part (4) and / or the tiboral implant part (6) has a three-dimensionally porous surface structure (30, 32) in the surface areas (10, 16) facing the bone to promote bone ingrowth into the implant part (4, 6),and that the femoral implant part (4) and / or the tiboral implant part (6) has a coating (52, 54) on the surface areas (14, 20) that are not in contact with the bone and not with the meniscus replacement part (8) but are in contact with soft tissue, at least in some areas, by means of which the surface roughness of these surface areas (14, 20) is reduced.

The invention provides a knee joint prosthesis and a tibial plateau thereof, and the tibial plateau comprises a second supporting platform and a first supporting platform which are arranged at an interval, and the position of the second supporting platform can be adjusted relative to the first supporting platform; the first end of the transmission part is movably arranged on the first supporting platform, and the second end of the transmission part is arranged on the second supporting platform; the driving structure comprises a mounting part and a driving part rotatably arranged on the mounting part, the rotating axis of the driving part is perpendicular to the axis of the mounting part, and the mounting part is rotatably arranged on the first supporting platform around the axis of the mounting part, so that the driving part drives the transmission part to rotate around the axis of the mounting part; the driving part is in driving fit with the transmission part so as to drive the transmission part to rotate in the direction parallel to the rotating axis of the driving part. According to the technical scheme, the problem that in the prior art, the relative position of the first supporting platform and the second supporting platform of the tibial plateau is inconvenient to adjust is effectively solved.

The application relates to a wrist joint prosthesis and relates to the technical field of artificial joint prostheses. The wrist joint prosthesis comprises: a carpal bone assembly for being fixed with one side of a hand-shaped bone, which comprises a carpal bone pad, a carpal bone support block embedded in one side of the carpal bone pad, a carpal bone printing column and a screw connected to the other side of the carpal bone support block, and a support block adjusting device arranged on the embedded side of the carpal bone support block, one end of the support block adjusting device being located in the carpal bone pad, and the carpal bone pad being provided with a locking piece for locking the adjusted position of the support block adjusting device; and a radius bone assembly for being fixed with a radius bone marrow cavity, which comprises a radius bone support, the radius bone support being arranged on the side of the carpal bone pad away from the carpal bone support block. The wrist joint prosthesis has the advantages of shortening the waiting time for surgery.

The invention provides a hip joint prosthesis which comprises an acetabular cup provided with a containing cavity, the acetabular cup is provided with a first magnetic part and a limiting ring groove, and the limiting ring groove is communicated with the containing cavity; the ball head is rotatably arranged in the accommodating cavity; the clamping ring is arranged outside the equator part of the ball head in a sleeving mode, the ball head can swing relative to the clamping ring, a second magnetic piece is arranged on the clamping ring, the second magnetic piece is matched with the first magnetic piece in a magnetic attraction mode so that the ball head can be connected with the acetabular cup, at least part of the clamping ring swings in the limiting ring groove along with the ball head, and the clamping ring can be matched with the side wall of the limiting ring groove in a limiting mode; and the femoral stem is fixedly connected with the ball head. According to the technical scheme, the problem that in the prior art, the movement range of a hip joint prosthesis is insufficient, and the joint flexibility is affected is effectively solved.

A knee joint prosthesis moves between an extended and flexion positions. The prosthesis includes a femoral component configured to be mounted to a femur, the femoral component having a femoral gear including a plurality of posts arranged along a helical trajectory. The prosthesis also includes a tibial component configured to (i) be mounted either directly or indirectly to a tibia, and (ii) engage the femoral component. The tibial component has a tibial gear including a plurality of recesses that are configured to mesh with the posts of the femoral gear. The tibial gear has two intersecting portions including a horizontally-oriented curved portion and a vertical portion, wherein each portion includes at least one of the recesses. The plurality of posts follow a helical trajectory to cause movement of the tibial component in either a medial or lateral direction as the knee joint prosthesis is moved to the extended position.

The invention discloses an artificial temporomandibular joint replacement bone trimming device, and relates to the technical field of joint prostheses, the artificial temporomandibular joint replacement bone trimming device comprises a positioning plate similar to a temporomandibular joint in shape, a prosthesis used as an artificial temporomandibular joint replacement bone is arranged in the positioning plate, and an osteotomy guide plate assembly used for osteotomy and positioning of the prosthesis is arranged in the positioning plate; a prosthesis grinding assembly is further arranged on the positioning plate; the right-angle threaded rod structures are driven to be close to or far away from each other by rotating the adjusting rotary drum, so that osteotomy grooves among the articular fossa guide plate, the articular head guide plate and the connecting plate are adjusted, positioning screws penetrate through the guide plates and positioning holes in the prosthesis for positioning, and sick part excision and prosthesis implantation operation are performed. The rack is driven by the driving gear to rotate along the positioning plate, the edge of the prosthesis is ground through the bone file, and ground powder is sucked and recycled; the device has the advantages of being high in operation efficiency, good in safety, convenient to use and simple in structure.

An orthopedic knee prosthesis includes a femoral component configured to couple to a lower portion of a femur, and including one or more curved condyle surfaces, a tibial bearing including a top portion including one or more concave bearing surfaces configured to articulate with the one or more curved condyle surfaces, a tibial coupler configured to be dynamically coupled to the tibial bearing and configured to couple to an upper portion of a tibia, a first magnetic portion statically coupled to the tibial coupler and including a first pole having a first pole polarity, and a second magnetic portion statically coupled to the tibial bearing and including a second pole configured to generally face the first pole and having a polarity that is the same as the polarity of the first pole, wherein movement of the tibial bearing in relation to the tibial coupler that causes the first pole and the second pole to decrease their relative distance from each other causes an increase in a magnetic repulsive force between the first magnetic portion and the second magnetic portion.

A distal femoral joint replacement system includes a femoral component having condylar articular surfaces, a stem extending from the femoral component, and a void filler for filling a bone void within a femur. The void filler includes a body and a plurality of legs extending from the body. The body has a sidewall defining an opening for receipt of the stem which extends along a length of the body and extends through the sidewall so as to form a side-slot in the sidewall that extends along an entire length of the sidewall. The plurality of legs each have a first end connected to the body and a second end remote from the body. The legs each have an outer surface that tapers between the first and second ends and is configured to register with a corresponding inner surface of a bone void when implanted in an end of the femur.

The invention relates to the technical field of balance systems, in particular to a load and gap balance system in a knee joint replacement operation. Mainly aiming at the problems that a doctor realizes symmetrical gap balance and ligament stress by virtue of a manual technology and subjective evaluation, an unsatisfactory result can be caused, and complications, such as instability, limited movement range and premature wear of an artificial knee joint prosthesis, are possibly caused, the following technical scheme is provided: the artificial knee joint comprises a knee joint, the knee joint comprises a femur and a tibia, and a medial collateral ligament and an lateral collateral ligament are connected between the femur and the tibia; the first osteotomy guider is used for cutting off the thighbone, the thighbone part of the first osteotomy guider is cut off to form a far-end osteotomy plane, and a thighbone prosthesis is installed at the position of the far-end osteotomy plane. According to the invention, the gap can be accurately measured, the ligament can be accurately tensioned, personalized alignment is realized, prosthesis selection is optimized, and the surgical effect of knee joint replacement, the satisfaction degree of a patient and the long-term durability of the prosthesis are effectively improved.

The invention relates to the technical field of biomedical materials, in particular to multi-material 3D printing bionic gradient soft-hard integrated hydrogel as well as a preparation method and application thereof. Based on a copolymerization system of high-strength supramolecular N-acryloylglycinamide and vinyl phosphoric acid, an NAGA aqueous solution and an NAGA-VPA aqueous solution are printed into hydrogel of a gradient structure by adopting a DLP multi-material printing technology, then the hydrogel is sequentially soaked in a calcium-phosphorus mixed aqueous solution (Ca / P = 1.67), ammonia water, a calcium chloride aqueous solution and deionized water, and the hydrogel is prepared through a hydrothermal method. Therefore, in-situ gradient deposition and curing of hydroxyapatite (HAP) are realized. The multi-material 3D printing bionic gradient soft-hard integrated hydrogel prepared by the method has a continuous biochemical-mechanical gradient, a surface layer low-modulus area is matched with cartilage performance, a deep layer high-mineralization area is integrated with bone tissue, the HAP crystallinity of a transition area is in spatial dependence distribution, and the hydrogel is suitable for osteochondral defect repair and manufacturing of bionic joint prostheses.