355 results about "Osteotomy" patented technology

An apparatus, system, and method are disclosed for remediating a condition present in a patient's foot. In some implementations, a resection guide includes a bone engagement feature configured to engage at least a portion of at least one foot bone to position the resection guide. The bone engagement feature may be least partially determined based on a model of the patient's foot, which is defined based on medical imaging of the patient's foot. The resection guide further includes a resection feature that extends through the resection guide from a superior side of the resection guide to an inferior side. The resection feature is configured to guide a cutting tool to form a first osteotomy in a first bone along a first trajectory. Additionally, the resection guide includes a first bone attachment feature configured to engage the first bone and a second bone attachment feature configured to engage a second bone.

A patient specific instrument is disclosed for correcting a condition present in a patient. The patient specific instrument includes a body that includes an inferior side having a bone engagement surface shaped to match a first surface of a first bone and a second surface of a second bone of a joint. The instrument also includes a superior side having a first guide feature and a second guide feature that together, with the bone engagement surface overlying the first surface and the second surface, are positioned to guide resection of the first bone and the second bone during a surgical osteotomy for correcting the condition. The body is configured to seat transverse to the joint with the bone engagement surface engaging the first surface of the first bone and the second surface of the second bone.

The invention provides an osteotomy path adjusting system in robot-assisted knee arthroplasty, and belongs to the technical field of knee joint detection. The system comprises a multi-modal data acquisition unit which comprises a knee joint pressure measuring gasket, an optical acquisition module and a kinematics data acquisition module, the knee joint pressure measuring gasket is used for acquiring knee joint pressure signals in an operation, and the optical acquisition module is used for acquiring relative poses of a femur and a tibia; the kinematics data acquisition module is used for acquiring kinematics data of the mechanical arm; the main control calculation unit comprises a data fusion module and a dynamic compensation module, and the data fusion module is used for constructing a synchronous spatio-temporal data set; and the dynamic compensation module is used for outputting a compensation instruction to the mechanical arm to adjust an osteotomy path based on the synchronous spatio-temporal data set, the preoperative predicted pressure prediction matrix and the soft tissue stiffness matrix. The pressure change in the operation can be responded in real time, the operation precision of the knee arthroplasty is improved, and the dependence on the experience of doctors can be reduced.

A surgical system and method for use in implanting a neural device in a minimally invasive manner. The surgical system can include an adjustable cranial guide and various surgical tools that are dimensioned for creating a minimally invasive osteotomy and working within the subdural space.

A system, includes a first screw mechanism including: a first block; a first screw threaded through the first block and including a first skin-interfacing portion; and an intramedullary (IM) member extending from and attached to the first block and including an end portion configured to be inserted into an intramedullary canal of a first bone fragment, wherein a first lateral force is generated between the first skin-interfacing portion against a second bone fragment, adjacent to the first bone fragment, and a holding force provided by the end portion when the first screw is rotated and the end portion is located in the intramedullary canal.

A minimally invasive method of correcting a bunion includes performing an osteotomy to divide the metatarsal into first and second portions, creating a pocket in the first portion implanting a nail in the pocket, securing a suture to the joint capsule, tensioning the suture to align the great toe with the metatarsal, attaching the suture to the nail, and fastening the nail to the second portion. The nail includes an anchor portion for anchoring in the first portion, a head for attachment to a second portion, a passage for attachment of the suture, a first aperture for a fastener to attach the head with the first portion, and a second aperture for a fastener to attach the head with the second portion.

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and / or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and / or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and / or the second surface.

The invention relates to an osteotomy planning method and device, computer equipment, a storage medium and a program product. The method comprises the following steps: determining a feature axis and a feature point of a knee joint structure according to a three-dimensional model corresponding to the knee joint structure; determining a target pose of the knee joint structure according to the feature axis of the knee joint structure and the feature point of the knee joint structure; and obtaining an osteotomy planning scheme according to the feature points, the target pose and the osteotomy planning parameters. By using the osteotomy planning method provided by the invention, a more accurate osteotomy planning scheme can be obtained.

The invention discloses an adjustable positioning module, a knee joint replacement positioning platform and a knee joint replacement positioning method.The adjustable positioning module comprises a positioning table; the first supporting plate is used for supporting the upper body of the human body; the second supporting plate is used for supporting the legs of the human body, and the second supporting plate is in an inverted V shape; the third supporting plate is used for supporting the feet of the human body; the first supporting plate is obliquely and slidably arranged on the positioning table, a first driving mechanism used for driving the first supporting plate to obliquely and linearly slide relative to the positioning table is arranged on the positioning table, the second supporting plate is horizontally and linearly slidably connected to the positioning table, and the third supporting plate is slidably arranged on the positioning table. The positioning table is provided with a second driving mechanism used for driving the third supporting plate to vertically and horizontally slide linearly relative to the positioning table. The knee joint osteotomy device can be suitable for patients with different leg lengths, knee joint replacement surgery is facilitated, and the convenience and accuracy of osteotomy operation can be improved.

The embodiment of the invention is suitable for the technical field of medical treatment, and provides a preoperative planning method and medical device.The method comprises the steps that according to a first three-dimensional model corresponding to a target skeleton, the feature axis of the target skeleton and the feature point of the target skeleton are determined; according to a preset space coordinate system and the feature axis of the target skeleton, adjusting the pose of the target skeleton of the first three-dimensional model to obtain a second three-dimensional model; and determining a target osteotomy direction and a target osteotomy position in the second three-dimensional model according to the feature points, the feature axis and the osteotomy planning parameters. By adopting the method, the time required by the knee joint replacement operation can be shortened.

The invention provides an auxiliary flexible fixing device for oral cranio-maxillofacial osteotomy, which is mounted on a bed body, pawl rack assemblies are respectively arranged on two sides of the bed body, the pawl rack assemblies are connected with side fixing plates of the bed body through supporting assemblies, and the pawl rack assemblies on two sides are respectively connected with flexible clamp assemblies through guide rail connecting pieces; the flexible clamp assembly comprises a positioning plate, the positioning plate is connected with the guide rail connecting piece through a supporting column and a side plate in sequence, a plurality of pressing columns arranged at intervals are arranged on the positioning plate, second springs are arranged between the ends, away from the positioning plate, of the pressing columns and the side plate, and ball heads are arranged at the ends, exposed out of the positioning plate, of the pressing columns. The supporting assemblies, the pawl rack assemblies and the flexible clamp assemblies which are used in pairs are adopted, the mode of one-time moving positioning and double locking is completed, and due to reverse locking devices of pawls and ratchets, the first locking mode is achieved; the pressing column of the flexible fixing device fits the shape of the skull of the patient, the pressing column is locked, and a second locking mode is achieved.

An apparatus, system, and method are disclosed for remediating a condition present in a patient's foot. In some implementations, a resection guide includes a bone engagement feature configured to engage at least a portion of at least one foot bone to position the resection guide. The bone engagement feature may be least partially determined based on a model of the patient's foot, which is defined based on medical imaging of the patient's foot. The resection guide further includes a resection feature that extends through the resection guide from a superior side of the resection guide to an inferior side. The resection feature is configured to guide a cutting tool to form a first osteotomy in a first bone along a first trajectory. Additionally, the resection guide includes a first bone attachment feature configured to engage the first bone and a second bone attachment feature configured to engage a second bone.

The invention discloses a control method and device of a surgical robot, a storage medium and electronic equipment. The method comprises the following steps: determining a plurality of simulated osteotomy surfaces of a target object according to a preoperative plan of knee joint replacement; under each simulated osteotomy surface, calculating a working space of the surgical robot to obtain a plurality of first working spaces; and determining a target working space of the surgical robot according to the plurality of first working spaces, and controlling the surgical robot to execute actions based on the target working space. By means of the method and device, the problem that in the prior art, due to kinematics constraint, an under-degree-of-freedom surgical robot cannot be adjusted to all necessary operation postures, and the accuracy of surgical robot control is low is solved.

A tibial implant may include a plurality of implant subunits. The implant subunits may be configured for individual insertion within a wedge-shaped-void of the tibia. The implant subunits may further be configured for assembly in order to provide an implant substantially covering an exposed portion of cortical bone formed when performing a surgical osteotomy. Methods and kits for insertion and assembly of implants are further described.

The invention discloses a digital guide plate for oral cavity tumor excision and contemporaneous bone implantation and a preparation method, the digital guide plate comprises a tumor excision indication guide plate, an autogenous bone osteotomy indication guide plate, an implantation indication guide plate, an implantation reduction guide plate and an autogenous bone reduction guide plate, and the preparation method comprises the following steps: constructing a virtual model and determining a tumor excision range; oral implantation planning is conducted, the position and range of a reconstructed titanium plate are determined, a digital guide plate is printed in a 3D mode, and a temporary abutment is connected to an implantation reduction guide plate through model operation training. By applying the digital guide plate, tumor resection, autogenous bone resection, autogenous bone reduction and precise implant implantation can be achieved in the same operation process. The digitized guide plate is used for guiding the implant to be implanted, the position of the implant is used as a reference, autogenous bone reduction can be accurately guided, and the precision of implant repair can be remarkably improved. The technical problems that in the prior art, the implant position is judged according to experience of doctors, and the autogenous bone reduction precision is not ideal can be solved.

The invention discloses a orthognathic surgery robot system, which comprises a multi-modal data fusion module, a cone beam CT (Computed Tomography) and intraoral scanning are integrated, a high-resolution three-dimensional bony structure image is acquired through the cone beam CT to reconstruct a three-dimensional anatomical model of maxillofacial skeletons, submillimeter details of tooth surfaces and occlusal relationships are captured through the intraoral scanning, and the submillimeter details of the tooth surfaces and occlusal relationships are acquired through the intraoral scanning; constructing a functional occlusion model; the navigation module is used for planning a navigation path through a preset self-adaptive path planning algorithm based on the three-dimensional anatomical model and the functional occlusion model of the maxillofacial skeleton of the target object; and the mechanical arm execution module is used for executing removal, osteotomy and fixation actions based on the navigation path. Through the multi-modal data fusion module, a personalized operation scheme can be formulated according to the specific anatomical structure and occlusal relationship of each patient.

The invention provides a distraction device and distraction equipment suitable for wedge high tibial osteotomy, and relates to the technical field of medical surgical instruments, the distraction device comprises a support, a first knife group, a second knife group and a first actuating part; the first cutter set is arranged on the support and protrudes out of the support in the first direction. The second cutter set is arranged on the support and protrudes out of the support in the second direction forming a first included angle with the first direction. And the first actuating part is configured to drive the bracket to rotate around the fixed shaft of the rotating shaft, so that the first knife group or the second knife group faces and extends into the bone seam. Wherein the thickness of the first knife group is configured to be smaller than that of the second knife group.

The present disclosure provides a knee joint osteotomy planning apparatus, an automatic knee joint osteotomy apparatus, and a related device, and relates to the technical field of robot control. In the present disclosure, according to prosthesis dimension information of a knee joint prosthesis to be assembled and tool dimension parameters of an osteotomy tool, relative pose relationships between osteotomy cutting-in poses for each tibial / femoral assembly surface of the knee joint prosthesis to be assembled and corresponding tibial / femoral prosthesis reference regions are determined in a reference coordinate system; upon acquisition of desired assembly pose information of the tibial / femoral prosthesis reference regions relative to the actual tibia / femur to be osteotomized in a base coordinate system of a surgical robot, desired osteotomy cutting-in poses for each assembly surface in the base coordinate system are calculated according to the desired assembly pose information and the relative pose relationships; then, in view of surface dimension information of the corresponding assembly surfaces, planar osteotomy trajectories for the corresponding assembly surfaces in the base coordinate system are planned, so as to realize the automatic osteotomy function of the surgical robot, thereby improving osteotomy accuracy and ensuring that the TKA surgery achieves expected outcomes.

The invention belongs to the technical field of instruments for knee arthroplasty, and particularly relates to a rotatable central positioning angle-adjustable tibia osteotomy template, which mainly comprises a fixed frame, an angle adjusting device, an angle adjusting device and an angle adjusting device, the guide frame is arranged in the mounting groove, an osteotomy groove is formed in the guide frame in a penetrating mode, the guide frame is provided with a first rotating track and a second rotating track relative to the fixed frame, and the axis of the first rotating track is perpendicular to the axis of the second rotating track; the first angle adjusting mechanism is connected with the fixed frame and the guide frame, and the first angle adjusting mechanism is constructed to be capable of driving the guide frame to rotate in the mounting groove along a first rotating track; the second angle adjusting mechanism is connected with the fixed frame and the guide frame, and the second angle adjusting mechanism is configured to drive the guide frame to rotate in the mounting groove along a second rotating track; and when the guide frame rotates along the first rotating track, the second angle adjusting mechanism synchronously moves along with the guide frame.

The invention provides a chin osteotomy angle calculation method and system, and the method comprises the following steps: constructing a chin osteotomy angle calculation model according to an aesthetic proportional relation and an aesthetic plane standard; the accurate angle of chin osteotomy is calculated through the chin osteotomy angle calculation model, and the chin osteotomy angle position is obtained. According to the technical scheme, by means of the calculated chin osteotomy angle, accurate operation guidance can be provided for doctors, it is ensured that the osteotomy angle in the operation process conforms to preoperative design, the accuracy and success rate of the operation are improved, and standardization of determination of the chin osteotomy angle is achieved.

The invention provides a multi-column integrated biological fixation partial femoral head replacement device, and relates to the field of medical instruments. The device comprises a bone nail, an auxiliary fixing piece and a joint prosthesis, the bone nail is provided with a first end part and a second end part nailed into a femoral neck medullary cavity, and the first end part, the auxiliary fixing piece and the joint prosthesis are integrally formed; the auxiliary fixture has a first surface and a second surface in contact with the conical osteotomy femoral head to prevent sinking and lateral rotation. The joint prosthesis only replaces the cut part of the necrotic femoral head, more normal sclerotin can be reserved, trauma is small, femoral head supporting and bearing are not affected or changed, long-term stability of the joint prosthesis is guaranteed, and meanwhile future rebuilding is facilitated. In addition, the first end part, the auxiliary fixing piece and the joint prosthesis are integrally formed, so that joint prosthesis failure caused by looseness or corrosion among the first end part, the auxiliary fixing piece and the joint prosthesis can be avoided.

The present invention provides a lateral fibular bone transport external fixator device, which includes a fibular transport device, a tibia fixation device, and a connection device. The fibular transport device drives the synchronous movement of the fibular transport frame through the movement of the adjustment device, so as to realize the position offset of the bone block of the osteotomy segment of the fibula. The tibia fixation device includes a tibia fixation frame and a deviation correction adjustment device, and the deviation correction adjustment device can adjust the fixation position of the tibia fixation frame and the connection device. The connection device connects the fibular transport device and the tibia fixation device. The present invention also provides a method for using the lateral fibular bone transport external fixator device. The present invention only sets the fixed fulcrum on the tibia, reduces the number of wound surfaces on the tibia side, does not affect the load-bearing capacity of the tibia after surgery, and at the same time sets the bone transport operation on the fibular side to realize the lateral fibular bone transport. The fibula is located deep in the skin fascia and is wrapped by the anterior and posterior muscle groups of the fibula. There is a richer capillary basis for bone transport at the fibular end, and the effect of repairing blood circulation is better.

According to an aspect, a preoperative planning method for a high-tibial knee osteotomy procedure is provided. The method includes: a) constructing a 3D model of a patient's bones; b) analyzing the 3D model to select a desired correction angle to apply to the patient's tibia bone to adjust a mechanical axis thereof; c) determining surgical steps required to apply the desired correction angle to the patient's tibia bone; d) designing a patient-specific guide to guide generic surgical tools in performing the surgical steps, the patient-specific guide being designed to conform to the anatomy of the patient's bones based on the 3D model; and e) manufacturing the patient-specific guide designed in step d). A corresponding kit, system and computer readable medium for performing the method are also provided.

The invention relates to a femoral stem and a hip joint prosthesis. The femoral stem comprises a near-end prosthesis stem, a far-end prosthesis stem and a locking rod. A mounting channel is arranged in the near-end prosthesis handle, the mounting channel penetrates through the near-end prosthesis handle in the direction from the near end of the near-end prosthesis handle to the far end of the near-end prosthesis handle, and a crimping surface is arranged on the near-end prosthesis handle; the far-end prosthesis handle is detachably mounted at the far end of the near-end prosthesis handle, and the far-end prosthesis handle is provided with an anti-retreating structure; one end of the locking rod penetrates through the mounting channel and abuts against the crimping surface, and the other end of the locking rod is connected with the far-end prosthesis handle. The femoral stem can pressurize a human body femoral metaphyseal osteotomy surface and a human body femoral shaft osteotomy surface, so that the contact area between the two osteotomy surfaces is increased, and the stability and the healing speed after the femoral stem is implanted are improved.

The invention provides a chin osteotomy operation guide plate which comprises a guide plate body, and the guide plate body is provided with a tooth fixing part used for being fixed to teeth; the chin nodule fixing part is used for fixing a chin nodule at the lower end of the chin; and the chin lateral fixing part is used for fixing the chin lateral chin bone edge. According to the technical scheme, the accuracy of osteotomy positioning is improved, accurate control over the osteotomy angle is ensured, meanwhile, surgical operation is simplified, and surgical efficiency and safety are improved.

A fixing device for improving fracture stability of an HTO hinge comprises a supporting plate, an attached wing plate, a first locking nail, a second locking nail and a plurality of fixing screws. The wing-attached wing plate is fixed to the supporting plate through a first locking nail, and a second locking nail is driven into the wing-attached wing plate from the rear inner side to the front outer side. The novel fixing device is provided for the outer hinge fracture in the inner side opening wedge-shaped tibia high-position osteotomy, the side wing plate is additionally arranged on the basis of an original supporting plate, the second locking nail which is nailed from the upper portion of the rear inner side to the lower portion of the front outer side is provided for supporting, and therefore the stability of the fracture is improved.

The invention provides a vascular nerve function evaluation system and method after diabetic foot osteotomy. The diabetic foot osteotomy postoperative vascular nerve function evaluation system comprises a data acquisition module, a data processing and analysis module, a user interaction module, a data storage module and a communication module, and the data acquisition module, the data processing and analysis module and the user interaction module are sequentially connected. The user interaction module is connected with the processing and analyzing module, and the communication module is connected with the data storage module. According to the diabetic foot osteotomy postoperative vascular nerve function evaluation system and method, accurate evaluation of postoperative vascular reconstruction, nerve recovery and wound healing is achieved through multi-modal data collection, dynamic modeling and intelligent analysis, objective curative effect comparison and prognosis prediction can be provided for clinic, and the system and method have the advantages of being high in practicability and wide in application prospect. And the scientificity and efficiency of diabetic foot postoperative management are effectively improved.

A surgical guide adapted to receive and guide a surgical instrument for performing a bone osteotomy, the surgical guide including a body formed as an elongate block, the block further including first and second fixation apertures, the second fixation aperture adapted to receive a secondary fixation device on a second angle oblique to angle of the first fixation aperture, one or more further positioning apertures and a cutting channel.

A personalized ankle osteotomy 3D printing guide plate comprises a 3D printing main body which is fixed to an operation part through a kirschner wire during use, and is characterized in that a guide hole penetrating through the main body and a plurality of positioning holes are formed in the main body, the guide hole is used for guiding the osteotomy cutting direction, the positioning holes are used for allowing the kirschner wire to penetrate through, and the 3D printing main body is designed through computer aided design; the inner side face of the main body of the guide plate is matched with the peripheral face of the tibia of the surgical site, personalized customization can be carried out according to the shape of the peripheral face of the tibia of the surgical site of a patient, a surgical auxiliary tool which is more suitable for the condition of the patient and is simple in structure is provided for the patient, and the guide hole can better guide operation of a doctor during surgery. The main body is fixed on the peripheral surface of the tibia through the positioning hole by using a kirschner wire, so that the main body can be more stably fixed on an operation part.

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.