135 results about "Osteotomy guide" patented technology

The utility model provides a guide plate system for ulna osteotomy, which relates to the field of medical instruments and comprises an ulna steel plate and an osteotomy guide plate, first fixing holes are arranged at two ends of the ulna steel plate, a second fixing hole is arranged at one end of the ulna steel plate, and a first inclined hole is arranged on the inner side of the second fixing hole. The other end of the ulna steel plate is provided with a first strip-shaped hole and a second strip-shaped hole, and the first fixing hole and the second strip-shaped hole are both provided with steel nails used for fixing the ulna steel plate to the ulna. The osteotomy guide plate comprises a guide plate body and a connecting plate which can slide relatively, the guide plate body and the connecting plate are connected through a bolt, and the connecting plate is provided with a bolt piece used for fixing the connecting plate and the ulna steel plate. The surface of the connecting plate is provided with scale marks, the surface of the guide plate body is provided with a scale observation window for showing the scale marks and marked lines, and the side face of the guide plate body is provided with a beveling channel. The second fixing hole and the third fixing hole are provided with first fixing needles matched with the second fixing hole and the third fixing hole, the first strip-shaped hole and the fourth fixing hole are provided with second fixing needles matched with the first strip-shaped hole and the fourth fixing hole, the second fixing needles can slide in the first strip-shaped hole, the required osteotomy length can be adjusted according to the actual situation, and the application range is wider.

The invention discloses a hip replacement lower limb equal-length control system and method based on individualized three-dimensional modeling. The hip replacement lower limb equal-length control system comprises a data preprocessing module, a medical image processing module, a dynamic implantation simulation module, a biomechanical analysis module, a guide plate generation module and a postoperative evaluation module. The method comprises the following steps: acquiring bilateral lower limb CT data and carrying out multi-modal registration; segmenting a skeleton structure by using a deep learning model, and constructing a three-dimensional model; reconstructing a complete sphere through affected side femoral head multi-plane fitting, and determining a target femoral head center in combination with uninjured side mirror image data; dynamically adjusting the space posture of the prosthesis to enable the center of the prosthesis head to coincide with the center of the target; performing finite element analysis to optimize stress distribution; and generating a 3D printing file of the individualized osteotomy guide plate and the positioning pointer. According to the method, preoperative accurate planning, intraoperative real-time control and postoperative quantitative evaluation are achieved, the operation precision is effectively improved, and complications of unequal lengths of lower limbs are avoided.

The invention discloses a lower jaw sagittal splitting osteotomy positioning guide plate. Comprising a lower supporting type positioning guide plate, a middle occlusion positioning plate and an upper supporting type positioning guide plate which are sequentially connected through connecting rods, wherein the lower supporting type positioning guide plate is manufactured according to the outer side form of a lower jaw body part; the middle occlusion positioning plate is manufactured according to first molars and first premolars of a patient; the upper supporting type positioning guide plate is manufactured according to the outer side form of a lower jaw ramus; the upper supporting type positioning guide plate extends towards the inner side of the mandibular branch to form a mandibular branch inner side horizontal osteotomy guide rod set according to the position of a small tongue of the mandibular branch, and the lower end of the lower supporting type positioning guide plate is provided with a lower edge supporting type positioning guide plate manufactured according to the shape of the lower edge of the mandibular branch. The lower supporting type positioning guide plate is provided with a vertical osteotomy guide groove which is designed and manufactured according to an operation. According to the guide plate, the osteotomy and reduction process in the sagittal split operation of the lower jaw is more accurate through accurate design and positioning, inferior alveolar nerves can be effectively protected, the postoperative stability is improved, compared with the prior art, the safety, accuracy and efficiency of the operation are remarkably improved, risks in the operation are reduced, and the operation cost is reduced. The important clinical application value is realized.

Instruments, devices, systems and methods for maintaining, correcting and / or fusing joint deformities are disclosed. Guide systems including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including a body, a first alignment member coupled to and extending away from a superior surface of the body, and a second alignment member coupled to and extending away from an inferior surface of the body. Methods of assembling and using the osteotomy guides and systems for maintaining, correcting and / or fusing joint deformities are also disclosed.

The invention discloses an HTO operation positioning osteotomy guiding auxiliary device, and relates to the technical field of medical instruments, the HTO operation positioning osteotomy guiding auxiliary device comprises a component A, a component B and a component C. The component B and the component C are assembled on the component A in a replaceable mode; the component A is connected with the component B, the component B is provided with at least one group of steel needle guide holes used for guiding steel needles to be placed, a swing saw guide hole parallel to the section where the steel needle guide holes are located and a coronal osteotomy guide hole forming an included angle of 110 degrees with the section where the steel needle guide holes are located, the component A is connected with the component C, and the component C comprises a first fixing part and a second fixing part. The first fixing part and the second fixing part are fixed with the tibia through bone nails, the second fixing part is overturned relative to the first fixing part, and the first fixing part is provided with a protractor for measuring the overturning angle of the second fixing part. According to the device, steel needle implantation, osteotomy, distraction and steel plate installation in the whole HTO operation can be completed, cost is low, and use is convenient.

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.

The invention discloses a set instrument for acetabulum tenon-and-mortise structural bone grafting and application, relates to the field of orthopedic surgical instruments, adopts a cylindrical ring file, a wedge-shaped angle file, a hollow trephine and a wedge-shaped osteotomy guide plate as the set instrument for acetabulum tenon-and-mortise structural bone grafting, and introduces a tenon-and-mortise structure mechanical embedding principle of Chinese traditional woodworking science into the field of acetabulum reconstruction. According to the acetabular cup prosthesis, a mortise and tenon structural bone grafting of an autologous femoral head is adopted, a Mortia and Tenon Bone Grafting technology (Mortia and Tenon Bone Grafting, MTBG) is innovatively put forward, an acetabular bone groove and a bone grafting block which are matched are prepared in a standardized mode, acetabular defects are embedded and filled through the accurately matched bone block, and the coverage rate and initial stability of the acetabular cup prosthesis are remarkably increased, and the bone fusion prospect of the acetabular cup prosthesis is remarkably improved; the hip joint function of the patient is obviously improved, pain is relieved, the walking ability is improved, and the life quality is improved; the invention provides a reliable and efficient new structural bone grafting technology, and the safety and long-term effect of DDH acetabulum reconstruction can be improved.

The invention provides a method for designing an osteotomy surface of an osteotomy guide plate, which belongs to the field of medical instruments and comprises the following steps of: establishing an xoz coordinate system in a sagittal view image on a three-dimensional bone model, and establishing a yoz coordinate system in a coronal view image on the three-dimensional bone model; in the three-dimensional coordinate system, on the basis that the highest point of the normal tibia part is a point P1, the osteotomy surface S1 passes through the point P1 and is parallel to the xoy surface, the spatial position of the osteotomy surface S1 in the three-dimensional coordinate system is obtained; an osteotomy line L1 is determined in a sagittal image, an osteotomy line L2 is determined in a coronal image, and the spatial position of an osteotomy surface S2 in a three-dimensional coordinate system is obtained based on the osteotomy line L1 and the osteotomy line L2; the first osteotomy surface and the second osteotomy surface of the osteotomy guide plate are set according to the 3D printing technology in combination with the relative position relation of the osteotomy surface S1 and the osteotomy surface S2, the osteotomy guide plate is obtained, the osteotomy guide plate is designed according to the osteotomy plane equation, and operation errors are reduced.

This invention discloses a guide plate device for spinal osteotomy and correction. Each first support member is fixed to the first guide plate body for connection with screws. The first guide plate body has a first window for locating the spinal laminectomy area. A rib resection groove is formed at the edge of the first window to determine the rib resection area. There are two rib resection grooves, arranged opposite each other on both sides of the first window. Each second support member is fixed to the second guide plate body for connection with screws. The second guide plate body has a second window for locating the pedicle osteotomy guide plate's resection area. There are two second windows, arranged opposite each other. The spinal laminectomy guide plate and the pedicle osteotomy guide plate share a single screw assembly. This invention avoids errors in judging the resection area based on human experience, and also avoids hand-holding the guide plate and guide plate position deviation during surgery.

The application provides an osteotomy guiding device, comprising a measuring rod with a first measuring scale arranged along the axial direction of the measuring rod; a first clamping structure and a second clamping structure, the second clamping structure being adjustably arranged on the measuring rod; wherein the first clamping structure and the second clamping structure each comprise a fixing column arranged along the vertical direction, and an upper clamping jaw, a lower clamping jaw and a first locking member arranged on the fixing column, the upper clamping jaw and the lower clamping jaw being used for clamping a bone, the upper clamping jaw being movably arranged on the fixing column, the first locking member being used for locking the upper clamping jaw and the lower clamping jaw, a first osteotomy groove being arranged on the upper clamping jaw, a second osteotomy groove being arranged on the lower clamping jaw, and a mounting hole being further arranged on the upper clamping jaw, the measuring rod being arranged in the mounting hole of the first clamping structure and the mounting hole of the second clamping structure. The technical scheme of the application can effectively solve the problem of poor clamping stability of the osteotomy guiding tool in the related art, which leads to uneven osteotomy surface.

The present invention relates to the technical field of medical devices, and particularly relates to a positioning structure and method for osteotomy and bone reconstruction. The positioning structure for osteotomy and bone reconstruction includes a positioning assembly; the positioning assembly includes an upper jaw positioning guide plate, a lower jaw osteotomy guide plate, and a reconstructed bone positioning guide plate; the upper jaw positioning guide plate has an upper jaw occlusal surface, an upper N-shaped splicing mechanism, a plurality of positioning holes, and a plurality of fixing holes; the lower jaw osteotomy guide plate has a lower N-shaped splicing mechanism, a connection area, a lower jaw lower edge indication area, and an osteotomy guiding surface; the reconstructed bone positioning guide plate includes an indication guide plate and a plurality of C-shaped connecting rods; after the upper jaw positioning guide plate is fixed, the insertion and cooperation of the two lower jaw guide plates can guide all the key steps of the operation, without repeated disassembly and adjustment, and maintain accurate positioning and intermaxillary distance to facilitate subsequent implant restoration; based on the upper jaw dentition, the lower jaw osteotomy position and the reconstructed bone position can be positioned, and it can be applied to patients with tooth loosening or lower jaw dentition loss caused by various reasons.

The positioning and guiding device is used for knee joint osteotomy and comprises an osteotomy guide plate, an adjusting assembly and a tracing frame, and the osteotomy guide plate is provided with an osteotomy guide groove used for guiding the direction of a saw blade; the adjusting assembly comprises a positioning base, a connector and three adjusting units, the positioning base is used for being connected with a target skeleton, the adjusting assembly is detachably connected with the osteotomy guide plate through the connector, and the three adjusting units are connected in series between the positioning base and the connector; the adjusting module is used for adjusting the position and posture of the osteotomy guide plate relative to a target bone so as to adjust the osteotomy amount, the forward-backward inclination angle and the inward-outward turning angle of an osteotomy surface, and the osteotomy surface is a plane to be guided and cut by the osteotomy guide groove; the tracing frame is used for being detachably connected with the osteotomy guide plate and indicating the position of the osteotomy guide plate in the operation space during connection. The defects of a traditional operation scheme and an operation scheme assisted by a mechanical arm in the prior art are overcome, positioning accuracy is guaranteed, and economical efficiency and reliability are both considered.

The utility model relates to a high-adaptation type femur osteotomy guiding device, which belongs to the technical field of medical instruments and comprises a bone attaching guide plate positioning base, an integrated support frame is fixedly connected to the top of the bone attaching guide plate positioning base, and a visual force line laser indicator is fixedly arranged at the top of the integrated support frame. A vertical force line guide needle device is fixedly arranged at the bottom of the integrated supporting frame, a guide needle is assembled in the vertical force line guide needle device, and the guide needle is matched with an osteotomy guide plate. According to the utility model, the guiding device which is simultaneously provided with the accurate bone-sticking positioning base, the visual force line display and the osteotomy guiding positioning nail is arranged, the accurate positioning of the foundation is completed by utilizing the bone-sticking guide plate positioning base which is attached to the thighbone surface of a patient, and the visual force line of the simulated patient is combined with the osteotomy guide plate which is vertical to the force line of the simulated patient; accurate vertical force line osteotomy is achieved, and the success rate of an operation is greatly guaranteed.

The present invention relates to a distal femoral osteotomy positioning device, comprising a positioning block, a spacer, and an osteotomy guide. The positioning block has a first positioning surface, the first positioning surface being used to contact the tibial osteotomy surface so that the positioning block is positioned on the tibia; the spacer has a second positioning surface opposite to the first positioning surface, the second positioning surface being used to contact the distal articular surface of the femur, and an angle is formed between the first positioning surface and the second positioning surface; the osteotomy guide has an osteotomy groove. The distal femoral osteotomy positioning device of the present invention can maintain a posterior tilt angle of 3° to 7° during tibial osteotomy so that the tibial plateau conforms to the physiological morphology of the knee joint, while reducing the situation in which the distal femoral osteotomy thickness varies due to inconsistent insertion depth of the positioning block into the knee joint, thereby maintaining the accuracy of osteotomy positioning.

The invention provides a mandibular angle osteotomy surgical robot system which is characterized in that an osteotomy guide plate assembly comprises a first osteotomy guide plate and a second osteotomy guide plate, the second osteotomy guide plate comprises a supporting guide plate and a fixed guide plate, and the supporting guide plate and the fixed guide plate are assembled to form an osteotomy groove body; the special-shaped scalpel comprises a saw blade part and a handle part, the handle part is provided with a bent structure, and an observation space is formed below the handle part. The driving module is used for driving the special-shaped scalpel to execute cutting operation according to a preset track; the monitoring module monitors the cutting operation state of the saw blade part through the observation space; the main control module is used for establishing a human jaw three-dimensional model, generating a personalized osteotomy guide plate assembly based on the human jaw three-dimensional model, obtaining the cutting operation state of the saw blade part through the monitoring module, and controlling the special-shaped scalpel to execute cutting operation through the driving module.

The utility model discloses a universal osteotomy guide plate for fixing ankle joint talus, which comprises a positioning osteotomy seat and a fixing component, a part of talus matching part is arranged on the bottom surface of a connecting block, and the top of the connecting block is connected with the fixing component; the first end of the first curved surface is located on the bottom face of the connecting block, the second end of the first curved surface extends towards the top of the connecting block, the first end of the second curved surface is connected with the second end of the first curved surface, and the second end of the second curved surface extends to the top of the connecting block and is connected with the fixing assembly. The first groove and the second groove are formed in the first curved surface and the second curved surface respectively; the first fixing block is arranged at the top of the connecting block, two first fixing holes are formed in the second end of the first fixing block, the first fixing holes penetrate through the first fixing block, the first kirschner wire penetrates through the two first fixing holes and is inserted into the talus, so that the talus is fixed, recycling of the osteotomy guide plate is achieved, and cost is saved.

The utility model belongs to the field of medical instruments, and provides a tibia osteotomy guide plate which comprises a tibia osteotomy guide part, a tibia first attaching part and a tibia second attaching part, and the tibia osteotomy guide part is provided with a tibia osteotomy groove; the tibia first attaching part is connected with the tibia osteotomy guide part, and the tibia first attaching part is provided with a tibia first attaching face used for being attached to a tibia articular face; the second tibia attaching part is connected with the tibia osteotomy guiding part, the second tibia attaching part is provided with a second tibia attaching face used for being attached to the side face of the near end of the tibia, and the second tibia attaching part is provided with a tibia positioning hole; wherein a tibia side anti-skid structure is formed on the tibia first binding surface and / or the tibia second binding surface. The tibia osteotomy guide plate can be stably and accurately attached to the proximal end of the tibia.

The present invention discloses an individualized osteotomy and repositioning surgical guide system for mandibular body osteotomy, including an individualized osteotomy guide and a bone plate; the osteotomy guide can be fitted with the front of the mandible and used for osteotomy of the mandibular body, and the bone plate can be fitted with the mandibular body after osteotomy and used to locate and fix the bone end. The osteotomy guide is an integrated structure, including a first guide plate, a second guide plate, and a third guide plate covering the front of the mandible. The bone plate is a split structure, including a first bone plate and a second bone plate; the first bone plate and the second bone plate each include an integrated bone plate body, the bone plate body is rectangular as a whole, and a first extension portion and a second extension portion are also provided thereon. The present invention also discloses a preparation method of the above-mentioned surgical guide system and its application in mandibular deformity correction.

The invention provides an osteotomy guide plate and an osteotomy guide assembly, the osteotomy guide plate comprises a main body part, a switching part and a lateral part, the main body part is provided with an inner surface and an outer surface which are oppositely arranged, and a near end surface arranged between the inner surface and the outer surface, and the main body part is provided with a transverse osteotomy groove penetrating through the inner surface and the outer surface; the adapter part is connected to one end of the main body part, the lateral part is connected to one end, away from the main body part, of the adapter part, the lateral part is provided with an inner side facing the main body part and an outer side away from the main body part, and the lateral part is provided with a vertical osteotomy groove penetrating through the inner side and the outer side. The osteotomy guide assembly comprises the osteotomy guide plate, a first distraction block and a second distraction block. After osteotomy is conducted through guiding of the transverse osteotomy groove and the vertical osteotomy groove, the first osteotomy seam and the second osteotomy seam which are communicated with each other are formed in the near end of the tibia, correction of the force line of the tibia of a patient and adjustment of a sunk tibia platform can be achieved, and therefore the osteotomy device can be suitable for the tibia near-end combined osteotomy operation.

An osteotomy guide (100) includes an inner surface (102) that faces the bone (300), and an outer surface (104) opposite the inner surface (102) along an outward direction (Do). The inner surface (102) defines proximal and distal bone contacting regions (118,120) that are spaced from one another by a gap (124) that extends into the inner surface (102) towards the outer surface (104). The guide (100) includes an ascending guide surface (134) that extends along an ascending direction so as to define an ascending cutting path into the bone (300). The guide (100) includes a transverse guide surface (138) that extends along a transverse direction so as to define a transverse cutting path into the bone (300).

This invention discloses a series of osteotomy guides for condylar osteotomy and their manufacturing method, relating to the field of medical device technology. The manufacturing method includes the following steps: creating a hard plaster dental model; establishing a virtual three-dimensional craniomaxillary model; acquiring virtual dentition data and replacing the dentition data in the three-dimensional model with virtual data; determining the target position of the mandibular bone segment; planning and virtually designing the osteotomy lines for coracoid and condylar resection, and virtually resecting the affected side's coracoid and condylar processes, and virtually designing the affected side's temporomandibular joint reconstruction to obtain a three-dimensional model of the affected side's ascending ramus; drawing the coracoid osteotomy guide; drawing the condylar osteotomy guide based on the mandibular morphology and osteotomy line position; and three-dimensionally printing the guide. By employing the above method, the guide can be fixed using its own shape, eliminating the need for additional fixation measures, reducing the difficulty of the procedure, shortening the operation time, and improving the accuracy of condylar resection; it also reduces the possibility of design errors caused by multi-data matching and fusion during the digital design process.

The utility model discloses a multifunctional guider for olecranal fracture and osteotomy, and belongs to the technical field of surgical auxiliary instruments. Comprising a guide fixing plate and a guide assembly, the guide fixing plate is provided with a positioning hole, a fixing hole and olecranon hooks, the guide fixing plate is an arc-shaped plate capable of being attached to the olecranon end of the ulna, the positioning hole and the fixing hole transversely and longitudinally penetrate through the guide fixing plate respectively, the two olecranon hooks are symmetrically arranged on the guide fixing plate, and the olecranon hooks are arranged on the guide assembly. A guide assembly is arranged on the guide fixing plate between the two olecranon hooks, the guide assembly comprises two sighting device sleeves, and a V-shaped osteotomy guide opening is further formed in the guide fixing plate; the olecranon fracture reduction and fixation device can assist in olecranon fracture reduction and fixation, accurate screw placement and needle insertion, meanwhile, accurate osteotomy can be achieved during olecranon osteotomy, follow-up reduction and fixation are completed, and good clinical prognosis is achieved.

An osteotomy guide to improve accuracy and efficiency of tibial plateau leveling osteotomy (TPLO) procedure. The guide comprises a concave shaped body with two ends on the opposite sides of the body wherein both ends are flushed, or one end is flushed and the other end is extended to form a flare. The flare also comprises a first end which may be extended from the first end of the guide. The guide also comprises a tibial plateau facing inner surface and an outer surface opposite the inner surface. The inner surface has a notch or groove or notches or grooves, which can be used as a landmark for tibial rotation. Further, the area enclosed by the two ends and inner and outer surfaces has plurality of orifices or fixation holes that are used for placing, securing and inserting mechanisms to secure the guide. The guide is durable, reusable or single-use and available in different sizes.

The present invention relates to the field of medical devices, and in particular to a pelvic bone tumor osteotomy guide and a construction method thereof. The present invention provides a method for constructing a pelvic bone tumor osteotomy guide model, comprising: obtaining a pelvic bone three-dimensional model and an osteotomy line; obtaining a guide cutting fitting surface; extending outward based on the guide cutting fitting surface to construct a guide body model; constructing a first detour model; constructing a second detour model; constructing a reinforcing rib model; constructing a fixed arm model; and constructing a nail channel model on the guide body model. The pelvic bone tumor osteotomy guide provided by the present invention can facilitate surgeons to perform osteotomy according to the preoperative plan during surgery, achieve personalized treatment for each patient, accurately and quickly remove the tumor entity, and can avoid damage to surrounding normal tissue structures to the greatest extent, thereby improving the accuracy of the surgery, reducing the operation time, and facilitating the recovery of patients after surgery.

A joint revision surgical system is provided that includes: (a) an osteotome blade / surgical osteotome guide block assembly having: a centrally located cavity and a plurality of anterior osteotome blade guide slots; a shank trunnion fastening member mountable within the central cavity and fastened to the osteotome blade guide block; the L-shaped adjustable blade guide plate is movably positioned in the plurality of osteotome blades / surgical osteotome guide grooves positioned at the front part; and a plurality of posterior osteotome blade / surgical osteotome guide slots, the plurality of posterior osteotome blade / surgical osteotome guide slots for receiving an osteotome blade and a surgical osteotome; (b) a surgical ram assembly; (c) an osteotome blade / surgical osteotome locking handle assembly; and (d) a plurality of osteotome blades / surgical osteotomes including osteotome blades having flexible and rigid blade shafts; wherein the assembled osteotome blade / surgical osteotome guide block is attached to an implanted femoral stem to be removed by attaching the stem trunnion fastening member to a trunnion of the stem.

The present application relates to a kind of femur osteotomes, the femur osteotome includes: clamping assembly and guide plate assembly, the clamping assembly includes connected clamp head and clamping arm component, the clamping arm component has for clamping femur clamping channel, the size of the clamping channel is adjustable, the guide plate assembly includes osteotomy guide plate and first connecting component, the osteotomy guide plate is detachably connected with the clamp head by the first connecting component, osteotomy groove is provided on the osteotomy guide plate, and the groove wall of the osteotomy groove is orthogonal to the axial direction of the clamping channel.The femur osteotome of the present application is higher in accuracy, easy to assemble, and simple to operate.

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 discloses a lateral malleolus reconstruction osteotomy guide plate based on 3D printing, which belongs to the technical field of medical instruments and comprises a guide plate body. Through the arrangement of a fixing assembly, a first horizontal positioning groove, an indicating groove, a first inclined positioning groove, a first kirschner wire hole, a second horizontal positioning groove, a second inclined positioning groove, a second kirschner wire hole and a third kirschner wire hole, the first horizontal positioning groove, the first inclined positioning groove, the second horizontal positioning groove and the second inclined positioning groove cooperate with one another; a positioning surface can be provided for proximal fibula cutting, an osteotomy starting plane can be conveniently positioned by naked eyes in an operation through the indication groove, and then the proximal fibula can be fixed under the action of the fixing assembly, the first kirschner wire hole, the second kirschner wire hole and the third kirschner wire hole so as to ensure the stability of osteotomy. Therefore, a more stable and standard osteotomy environment is provided for fibula near-end wedge-shaped osteotomy, and stability, reliability and accuracy of osteotomy are ensured.

The utility model relates to the technical field of medical auxiliary instruments, in particular to an adjustable osteotomy guide plate assembly, a fixed guide plate comprises a second main body part and a guide plate fixing part, the guide plate fixing part is fixed to one side of the second main body part in the third direction, and the guide plate fixing part is fixed to the other side of the second main body part. A sliding groove extending in the first direction is formed in the second main body part, the first main body part is in sliding fit with the sliding groove in the first direction, a first via hole is formed in the second main body part, and the first via hole is a through hole extending in the second direction. The first via hole is a kidney-shaped hole, the length direction of the kidney-shaped hole is parallel to the first direction, and the column hole corresponds to the first via hole in position. The adjustable osteotomy guide plate assembly aims at solving at least one technical problem related in the prior art.

The utility model relates to the technical field of orthopedic surgical instruments, in particular to a pair of minimally invasive osteotomy guide forceps, which comprises a first forceps handle and a second forceps handle, the guiding clamp is reasonable and compact in structure, in the osteotomy process, only periosteum at the position to be subjected to osteotomy needs to be stripped, after the guiding clamp is closed, the left portion of the upper bendable clamp head and the left portion of the lower bendable clamp head can surround the periphery of a bone, the upper guiding groove and the lower guiding groove are synchronously combined, and at the moment, a fretsaw penetrates through the upper guiding groove and the lower guiding groove to conduct osteotomy. The fretsaws can be separated from the corresponding guide grooves to cut off the skeleton by alternately drawing the two ends of the fretsaws; during an operation, the fretsaw is protected by the upper bendable clamp head and the lower bendable clamp head, so that an operative incision cannot be expanded, peripheral nerves, blood vessels and soft tissues of bones can be effectively protected, unnecessary damage to surrounding tissues is avoided, the operation time is greatly shortened, the possibility of postoperative complications is reduced, and the postoperative rehabilitation time of a patient is shortened.