8 results about "Tibial tuberosity" patented technology

A surgical kit for performing a tibial tubercle osteotomy (TTO) is provided. The surgical kit comprises a primary surgical module configured to be secured to a patient's tibia and a bone-fastener predrilling module. The primary surgical module has a bone-contacting surface configured to be superposable against the patient's tibia and conforming thereto in a single predetermined position and orientation and an operative side. The primary surgical module includes an anchor portion securable to the patient's tibia, a primary cutting portion defining a coronal cutting plane, and a proximal cutting portion defining a proximal cutting plane. The coronal and the proximal cutting planes are configured to guide a surgical cutting tool to create a resection in the patient's tibia and to at least partially delimit a tibial tubercle fragment.

The utility model discloses a split tibial tubercle osteotomy guide plate, its characterized in that, including: tibial tubercle osteotomy guide plate, four oblique kirschner wires, handle pole, handle pole is installed tibial tubercle osteotomy guide plate, tibial tubercle osteotomy guide plate is equipped with four through -hole, and one oblique kirschner wire is inserted in each through -hole, tibial tubercle osteotomy guide plate still is equipped with a osteotomy groove, the utility model has simplified the surgical operation step, convenient to use, has extensive clinical application value.

The utility model relates to a fixing needle and a traction device matched with a tibial tuberosity part, the fixing needle comprises a needle body, the needle body is provided with a tip end, a threaded section and a tail end, the threaded section is located between the tip end and the tail end, and the threaded section is provided with a first section, a second section and a third section which are continuously arranged; wherein the first section is provided with a first external thread, the first thread major diameter of the first external thread is D1, the first thread height is H1, and the first thread pitch is L1; the second section is provided with a second external thread, the second thread major diameter of the second external thread is D2, the second thread height is H2, and the second thread pitch is L2; the third section is provided with a third external thread, the third thread major diameter of the third external thread is D3, the third thread height is H3, and the third thread pitch is L3; d1 = D2 = D3, H1 = H2 = H3, and L2 > = L1 = L3. According to the application, the fixation and traction of the tibial tuberosity part are realized.

The invention discloses a positioning method, system and tool used in movable plateau unicompartmental knee arthroplasty, and the method comprises the following steps: when a patient is in a lithotomy position, vertically and upwards extending the inward 1 / 3 position of a tibial tuberosity of the patient to the upper edge of patella and then extending to the body surface connecting line of anterior superior spine of iliac, and determining the ilioshin line of the patient; determining the inner side edge of the vertex of the tibial spine on the inner side of the patient as an osteotomy starting point; determining that the saw blade direction of osteotomy is parallel to the ilioshin line; the installation position of the thighbone drilling guider is located at the position with the distance of 5.25-7.25 mm from the vertical osteotomy face of the tibia through a quantification method; the rotating position of the femoral prosthesis is limited through geometric constraint, so that the connecting line of the center points of the two preset fixing nails on the femoral prosthesis is perpendicular to the tibia osteotomy surface. Good tibia prosthesis rotation is obtained by accurately guiding tibia vertical osteotomy through the body surface iliotibia line, good liner inner and outer side positions are obtained by quantifying the distance between the thighbone drilling guider and the tibia vertical osteotomy surface, and a good liner movement track can be provided.

The application discloses a cutting guide plate for a proximal tibia and a preparation method thereof, and belongs to the technical field of orthopedic cutting guide plates. The cutting guide plate comprises a positioning plate, the bottom surface of the positioning plate is attached to a tibial articular surface and lateral bone, a cutting groove is formed in the side surface of the positioning plate, the cutting groove is inclined backward by 3-5 degrees, an avoiding hole is formed in the top surface of the positioning plate, and at least two fixing holes are arranged on the positioning plate; and a positioning line is arranged on the upper end surface of the positioning plate, and the positioning line is used for pointing to the inner 1 / 3 of a tibial tuberosity. The cutting guide plate is used for tibial cutting surgery, effectively improves the cutting and prosthesis installation accuracy, shortens the operation time, reduces the operation complications, and helps the patient to quickly recover.

The application provides a method and device for measuring the angle between two bone blocks forming a joint, which can be used for real-time measurement of the flexion, valgus and varus angles of a knee joint in computer-aided knee joint replacement. The conversion relationship between the coordinate system of a 3D virtual bone model and the coordinate system of the markers collected from the actual bone surface is established by using an optical tracking system, and the angles are calculated by using the marker points extracted from the model, which are selected from the hip joint center H, the femoral knee joint center FK, the lateral epicondyle LE, the medial epicondyle ME, the tibial knee joint center TK, the tibial tuberosity TB and the ankle joint center AK. The method comprises the following steps: calculating the femoral mechanical axis direction vector and the tibial mechanical axis direction vector; calculating the flexion angle when the knee joint moves around the transverse axis on the sagittal plane. The valgus and varus angles can be determined by projecting the femoral axis and the tibial axis on the coronal plane Pc or the transverse plane. The application also provides a surgical robot system, a storage medium and a measuring device.

The invention discloses a fixing device for posterior cruciate ligament avulsion fracture, which comprises a fixing plate main body, the fixing plate main body is integrally formed by a far end, a middle end and a near end, the near end is provided with a locking screw hole I, the near end is provided with two wire passing grooves, the bottom of each wire passing groove is internally connected with a vertical column, the vertical column is provided with an annular winding groove, and the annular winding groove is provided with a locking screw hole II; the stand column is in threaded connection with a pressing cap through an external thread, the pressing cap comprises a straight section and an external expansion section, a gap is formed between the inner wall of the external expansion section and the lower edge of the outermost end of the annular winding groove, and two threading grooves are formed in the bottom of the external expansion section; a plurality of second locking screw holes are formed in the middle end and the far end. The fixing plate body can be bent on site according to the actual condition of a patient, so that the fixing plate body can be better attached to the tibial tuberosity, and the adhesive force is increased through the rough surface; the sewing rope can be pressed on the stand column through the pressing cap, and the sewing rope at the sewing position is prevented from being loosened when the two ends of the sewing rope are knotted.

The present invention provides rotational movement tights that can assist the rotational movement of the wearer's lower body. [Solution] The rotational movement tights 1 comprises a main body 10 configured to be attached to the lower body 110 of the wearer 100, and a tightening part 20 attached to the main body 10 and having greater elasticity than the main body 10. The tightening part 20 is positioned on at least one of the wearer 100's right lower body 111 and left lower body 112 when the main body 10 is attached to the wearer 100's lower body 110. The tightening part 20 is spirally configured to sequentially cover the wearer 100's gluteus maximus, posterior greater trochanter, biceps femoris, posterior joint space, and tibial tuberosity in at least one of the right lower body 111 and left lower body 112. The tightening part 20 includes an anchor part 21. The anchor part 21 diagonally covers the tibial tuberosity from the outside to the inside.