461 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 embodiment of the invention is applicable to the technical field of computer-aided medical treatment and osteotomy, and provides an osteotomy control system, computer-aided medical equipment and a computer program product, the osteotomy control system comprises a data processing unit, an optical positioning system and mechanical arm equipment; wherein the optical positioning system is used for collecting three-dimensional image information of an operation area of a patient and a tool at the tail end of the mechanical arm and transmitting the three-dimensional image information to the data processing unit; the data processing unit is used for calculating relative position information between the mechanical arm tail end tool and the osteotomy safety boundary according to the three-dimensional image information, and generating a control instruction when the mechanical arm tail end tool exceeds the osteotomy safety boundary; the mechanical arm equipment is used for applying acting force to the mechanical arm tail end tool according to the control instruction, and the mechanical arm tail end tool is prevented from exceeding the osteotomy safety boundary. By the adoption of the osteotomy control system, the safety and osteotomy precision of orthopedic surgery can be improved, and the operation burden of doctors is reduced.

A dental drill bit for creating a particularly shaped osteotomy in a human jawbone includes: a mounting shank and cutting head. The cutting head includes: four blades protruding away from an axis of the drill bit, each blade having a thickness and being positioned 90 degrees to each adjacent blade to form a cruciform-shaped cross-section, with two pairs of the blades each positioned 180 degrees apart. Each of the pair of blades positioned 180 degrees apart are offset laterally a distance about equal to the blade thickness, and each blade has a shaped periphery that includes: a first radiused periphery; and a second radiused periphery. The first radiused periphery is shaped to form a hemisphere frustum-shaped socket portion when rotated about the axis of the drill bit, and the second radiused periphery is shaped to form a bullet shaped socket portion when rotated about the axis of the drill bit.

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.

An apparatus, system, and method are disclosed for remediating a condition present in a patient. In some implementations, a resection guide includes a first resection feature that guides a cutting tool to form a first osteotomy in a bone, the first resection feature extends along a first trajectory. A second resection feature guides a cutting tool to form a second osteotomy in the bone, the second resection feature extends along a second trajectory. A third resection feature guides a cutting tool to form a third osteotomy in the bone, the third resection feature extends along a third trajectory. At least one of the trajectories is determined based on a bone model of a portion of the bone, which bone model is based on medical imaging of the patient's foot. The device also includes a bone attachment feature to secure the resection guide to the bone.

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.

The invention provides a multi-disease artificial intelligence surgical robot system for the whole orthopedics department, and the system comprises a total hip joint replacement module which is used for preoperative planning, intraoperative total hip joint replacement and real-time display; the total knee joint replacement module is used for preoperative planning, intraoperative total knee joint replacement and real-time display; the unicondylar joint replacement module is used for preoperative planning, intraoperative unicondylar joint replacement and real-time display; the acetabulum periphery osteotomy module is used for pre-operation planning, acetabulum periphery osteotomy during operation and real-time display; the sports medicine module is used for bone tunnel planning and ligament reconstruction and real-time display; the spine screw placement positioning navigation module is used for positioning navigation and real-time display of intraoperative spine screw placement; and the trauma positioning and navigation module is used for performing trauma positioning and navigation and real-time display during operation. According to the embodiment of the invention, the auxiliary operation can be quickly and accurately carried out.

The present invention relates to a system for determining the angle of osteotomy. The system comprises a plurality of liners, a pressure measurement apparatus and a processing module. Each liner comprises a liner body having an upper surface and a lower surface. A longitudinal distance between a slope region of each upper surface and a planar region of the upper surface gradually increases from a position near the geometric symmetry central axis of the liner to both sides of the liner, so as to define the degree of a tilt angle. The pressure measurement apparatus is used for measuring a pressure applied by each of two extremity sides of a bone joint, so as to determine a pressure difference value. The processing module is configured to determine an angle of osteotomy for the extremity sides on the basis of the tilt angles of the liners that balance the tension of the two extremity sides. The present invention restores the tension condition in a real working state of a joint before osteotomy and takes into account the balance state of the tension of soft tissue as a consideration for the angle of osteotomy, thereby effectively solving the problem of unbalanced tension between soft tissue at the inner and the outer sides of knee joints after total knee arthroplasty, and keeping the original mechanical performance of knee joints of patients after surgery.

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 systems and methods for performing an osteotomy are disclosed herein. A surgical system includes a frame including a first section, second section, third section, fourth section, and a window. The surgical system can include a cut guide that can fit within the window and contact the first side, the second side, the third side, and the fourth side. The surgical system can include an aligner that can fit within the window and contact the first side, the second side, the third.

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.

Osteotomy systems, devices, and methods for using the osteotomy systems are disclosed. The osteotomy system including an alignment device, at least one k-wire for insertion into the alignment device, and a cut guide with at least one hole for receiving at least one k-wire and a slot for receiving a saw blade. An osteotomy kit including an alignment device, cut guide, and position rotation device. The alignment device, cut guide, position rotation device, and bone plate are also disclosed. Finally, a method for fusing bones using the osteotomy system is also disclosed.

The invention provides an osteotomy guider capable of fixing a single condyle and adjusting a gap, and belongs to the technical field of medical apparatuses and instruments. An osteotomy guider upper body; the fixing block is fixedly connected to the lower end of the osteotomy guider upper body; the osteotomy guider lower body is arranged at the lower end of the osteotomy guider upper body; the sliding groove is formed in one side end of the fixing block; the function of adjusting the joint gap and the function of adjusting the thighbone osteotomy amount are added on the basis of an original thighbone osteotomy guider, meanwhile, thighbone single-side fixation is changed into thighbone and tibia double-side fixation, the function of filling the joint gap is achieved without being matched with other instruments for use after modification, the instrument accuracy can be improved, the osteotomy accuracy is guaranteed, and the application range of the thighbone osteotomy guider is widened. Meanwhile, the thighbone and the tibia are fixed on the two sides, so that the stability of the osteotomy position and angle is ensured, and the condition that the osteotomy position and angle deviate is avoided.

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.

Provided are a surgical instrument and a surgical instrument system which has a simple structure and with which an osteotomy can be done with a simple operation. A surgical instrument includes a spacer part having a predetermined thickness, a guide part extending in a direction perpendicular to the guide part. The spacer part includes a first surface that abuts on one of posterior condyles of a femur at a bent position of a knee joint. The guide part includes a second surface that extends perpendicular to the first surface and abuts on a distal end part of the femur, and a guide slit penetrating the guide part along a direction parallel to the first surface and through which an osteotomy instrument is inserted.

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.

The invention discloses an osteotomy and assembly integrated guide plate for a thighbone mechanics experiment, and relates to the technical field of orthopedic mechanics experiments. The osteotomy and assembly integrated guide plate for the thighbone mechanics experiment comprises a first main clamping plate, a second main clamping plate, a first auxiliary clamping plate and a second auxiliary clamping plate, and the first main clamping plate, the second main clamping plate, the first auxiliary clamping plate and the second auxiliary clamping plate are fastened through bolts and form a fixing sleeve wrapping the end of a thighbone; the head of the femur is wrapped by the four clamping plates and then cut, compared with a current direct cutting mode, the cutting face is smoother, the position is controllable, two sections of femur can be assembled again through tightening after cutting, the femur alignment effect in nine states can be formed by adjusting the positions of the clamping plates, display and research are facilitated, and the application range is wide. Due to the integrated design of the osteotomy assembly guide plate, the difficulty required for making a fracture model can be integrated on one guide plate, and the operation is simple, convenient and rapid.

The invention discloses a unicondylar joint replacement tibial plateau vertical osteotomy positioning device, relates to the technical field of tibial replacement positioning, and provides the following scheme that the unicondylar joint replacement tibial plateau vertical osteotomy positioning device comprises a base, and two up-and-down position adjusting pieces are arranged on the surface of the top of the base in an up-and-down stacked mode. According to the technical scheme, the tibia fixator and the up-down position adjusting piece are arranged, the tibia is clamped and fixed through the tibia fixator, it is ensured that the tibia does not slide in the operation process, the silicon rubber case and the pressure sensor are arranged on the portion, making contact with the tibia, of the clamp, and the clamping force can be monitored while the surface of the tibia is prevented from being damaged. The vertical position adjusting part can adjust the clamping position of the clamp on the ankle, and the osteotomy angle adjusting part is additionally arranged to enable the linear laser transmitter to change the angle, so that rays with angles are projected on the tibia, a doctor can be helped to finely adjust the angle according to actual needs, and accurate positioning is ensured.

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 present application belongs to the field of medical surgical instruments, and provides an elbow joint surgical instrument, which includes a head, fixed wings, and a fixed cage. The head is used to cover the surface of the distal end of the humerus; the fixed wings are connected to the side of the head and are used to connect to the humerus; the fixed cage is connected to the head and forms a bone crushing groove with the head for accommodating the filling bone, and the fixed cage also has a limiting structure for cooperating with the bone tissue of the distal end of the humerus. The elbow joint surgical instrument provided by the present application can greatly reduce the amount of osteotomy, which is conducive to later revision surgery. The filling bone placed in the bone crushing groove is conducive to promoting the patient's postoperative recovery and postoperative weight-bearing. The limiting structure cooperates with the bone tissue in the corresponding area of ​​the distal end of the humerus, which is conducive to strengthening the stability of the elbow joint surgical instrument fixed on the distal end of the humerus.

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 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 parallel positioning osteotomy device comprises an operation plate, an osteotomy sleeve, a guide sleeve and a guide rod, one end of the osteotomy sleeve is fixed to one side of the operation plate and is perpendicular to the operation plate, an osteotomy channel is formed in the center of the osteotomy sleeve, and the osteotomy channel penetrates through the osteotomy sleeve and the operation plate at the same time; the osteotomy channel comprises at least three transversely arranged positioning holes, and the adjacent positioning holes are communicated through an osteotomy groove; the two guide sleeves are fixed to one side of the operation plate and are parallel to each other, the two guide sleeves are arranged on the two sides of the osteotomy sleeve respectively and are perpendicular to the osteotomy sleeve, and the guide rods penetrate through the guide sleeves. By arranging the two parallel guide sleeves, the two osteotomy devices can be kept in a parallel state during osteotomy, so that two osteotomy planes are parallel to each other, the consistency of bone regeneration directions is ensured, pressurized healing after two carried bone blocks are finally aligned is facilitated, and the bone carrying operation effect is improved.