2700 results about "Gonial angle" patented technology

A method for aligning 3D objects in an extended reality (XR) system involves obtaining 3D objects from a volumetric imager or surface scanner, where the volumetric imager captures a three-dimensional voxel array representing an anatomical structure and the surface scanner generates a polygonal mesh or point cloud of the same structure. The method includes detecting a set of points on the 3D objects by identifying distinct anatomical landmarks, such as facial landmarks for soft tissue or tooth landmarks for hard tissue, and assigning each point a unique identifier. A video feed from XR goggles or a prerecorded video is obtained, providing real-time or prerecorded imagery of the patient's anatomical structure from various angles. Corresponding points on the video feed that align with the set of points detected on the 3D objects are identified using image processing techniques, ensuring accurate correspondence. The registered 3D objects are rendered to match the corresponding points on the patient's anatomical structure, with the alignment switching between soft tissue points when the patient's mouth is closed and hard tissue points when the patient's mouth is open for enhanced precision.

According to particular embodiments, the present staple includes a low-profile bridge and has the capacity for high sustained compression. In some embodiments, the staple includes a bridge with a continuous cross-section, and one or more pairs of legs with teeth cut therein, the inner legs and outer legs each including an angle of about 16 degrees.

The invention provides a tumor type bone defect reconstruction method and system. The method comprises the following steps: acquiring bone defect information; constructing a bone defect restoration; constructing a bone defect three-dimensional model; and bone defect simulation surgery. According to the method, the bone defect information is obtained by evaluating the illness state of the patient, meanwhile, the anatomical structure of the bone tumor of the patient is subjected to structural evaluation through modern medical imaging, and the bone defect restoration is constructed in combination with the corresponding bone defect information; then, according to preset prosthesis design data, carrying out repair design on the bone defect prosthesis and obtaining three-dimensional skeleton data of a patient in real time, then, according to the obtained three-dimensional skeleton data, constructing a three-dimensional bone defect model and carrying out a bone defect simulation operation, and finally, predicting and optimizing the implantation position, direction and angle of the bone defect prosthesis. The effect of improving the construction accuracy of the bone defect prosthesis is achieved, and the problem that in the prior art, the construction accuracy of the bone defect prosthesis is low is solved.

The invention provides an oral surgery positioning and navigation method and system and a storage medium, and the method comprises the steps: calibrating an implanted mobile phone to obtain a unit vector of a rotating shaft of a drill bit and a three-dimensional coordinate value of the tip of the drill bit under an optical three-dimensional coordinate system, scanning to obtain a CT three-dimensional model of a patient, and segmenting to obtain a tooth CT model and an alveolar bone CT model; generating a tooth three-dimensional point cloud according to the real-time pattern of the speckle structured light on the teeth of the patient, acquiring a matrix transformation relation between a CT three-dimensional coordinate system and an optical three-dimensional coordinate system, and performing real-time navigation on the implanted mobile phone according to the real-time point position deviation and the real-time angle deviation of the drill bit. According to the technical scheme, the matrix transformation relation between the CT three-dimensional coordinate system and the optical three-dimensional coordinate system is calculated through the tooth CT feature points and the tooth point cloud feature points, and auxiliary navigation is carried out by comparing the target position of the implant with the real-time pose of the tip of the drill bit, the direction vector of the planting path and the unit vector of the rotating shaft of the drill bit. Operation is convenient and positioning precision is high.

An orthopedic tool includes a main body and a reference member. The reference member may be configured to engage an anatomical feature of a patient, such as the patient's bone. The angle of the reference member may be adjusted using a knob.

Systems and methods for providing assistance to a surgeon during an implant surgery are disclosed. A method includes defining areas of interest in diagnostic data of a patient and defining a screw bone type based on the surgeon's input. Post defining the areas of interest, salient points are determined for the areas of interest. Successively, an XZ angle, an XY angle, and a position entry point for a screw are determined based on the salient points of the areas of interest. Successively, a maximum screw diameter and a length of the screw are determined based on the salient points. Thereafter, the screw is identified and suggested to the surgeon for usage during the implant surgery.

An implant for therapeutically separating bones of a joint has two endplates each having an opening through the endplate, and at least one ramped surface on a side opposite a bone engaging side. A frame is slideably connected to the endplates to enable the endplates to move relative to each other at an angle with respect to the longitudinal axis of the implant, in sliding connection with the frame. An actuator screw is rotatably connected to the frame. A carriage forms an open area aligned with the openings in the endplates. The openings in the endplates pass through the carriage to form an unimpeded passage from bone to bone of the joint. The carriage has ramps which mate with the ramped surfaces of the endplates, wherein when the carriage is moved by rotation of the actuator screw, the endplates move closer or farther apart.

A sacral fixation system, comprising a plate (10) comprising:a proximal face (16) and a distal face (17), a plate plane extending between the distal and proximal faces,a first housing (21) extending along a first axis (X21)a second housing (22) extending along a second axis (X22),a plate axis, the second axis forming a first angle with the plate plane, and the second axis and the plate axis forming a second angle comprised between 45 degrees and 110 degrees;a second screw (12), received in the second housing to penetrate at least the vertebra S2 of the patient's sacrum;a locking cap (13), which comprises a skirt (36), being received in the second housing by interposing the skirt between the second screw and the second housing.

The present disclosure is a femoral preparation guide and a kit of surgical components related to the femoral preparation guide. The femoral preparation guide is for use on a condyle of a femur during a surgical procedure in which the condyle receives a femoral condylar implant. The femoral preparation guide includes a posterior portion for fitting over a posterior region of the condyle and a distal portion for fitting over a distal region of the condyle. The distal portion is at an angle relative to the posterior portion. The distal portion includes first and second resections slots for receiving cutting tools that provide two resections of the condyle. The first and second resections slots being at angles relative to each other.

The invention provides a personalized adjustable artificial vertebral body, and belongs to the technical field of medical instruments. An end plate adjustable rod; the sliding groove is formed in the end plate adjustable rod; the external thread is fixedly connected between the inner walls of the two sides of the end plate adjustable rod, and the external thread is located in the sliding groove; the notch and the structure are designed individually, customization can be carried out according to the requirements of different patients, and better adaptability and clinical effects are provided; the angle adjusting function is achieved, and the angle of a vertebral body can be adjusted through combination of an end plate adjusting rod and an external thread; the length can be adjusted, and personalized adjustment of the length of the vertebral body is achieved through cooperation of the adjusting nut and the adjusting screw rod; the stability is high, the stability of initial implantation is provided by a spine and a support frame structure, and bone induction and long-term fixation fusion are promoted in a bone trabecula area; the operation is simple, the use method is clear, and doctors can perform surgical operations conveniently.

The invention relates to a convenient preparation tool for palatal side free gingiva and a use method thereof, the convenient preparation tool comprises a disposable handle and a head cutting device, the disposable handle is rigidly connected with the head cutting device, the head cutting device comprises a cutting module and a collecting channel, the collecting channel is arranged behind the cutting module, and the collecting channel is connected with the disposable handle. The cutting module comprises a horizontal blade and a vertical blade, the instrument can adapt to the anatomical form of the curved surface of the palate in the cutting process through the width limiting and arc design of the horizontal blade, the width is controllable, and the influence of subjectivity of an operator on the quality of a prepared graft is reduced; through height limitation of the vertical blades on the two sides, the stable cutting depth is maintained, the thickness uniformity of the graft is remarkably improved, the edge integrity of the graft is kept, the problem that the graft is broken or too thin due to angle deviation or uneven force application in traditional operation is solved, meanwhile, accidental injuries to deep vascular nerve plexus are reduced, and the survival rate of the graft is increased. And the risk of complications such as postoperative bleeding, pain and donor healing delay is reduced.

A minimally invasive ultrasonic knife head and a minimally invasive ultrasonic bone power system, the minimally invasive ultrasonic knife head comprises a knife rod and a head end, the head end is located at the front end of the knife rod, the head end is curved to the side at a certain angle, and the knurled teeth or bevel teeth are arranged on the curved part. By bending the head end, the bone tissue around the intervertebral foramen mirror can be removed, so that the operator has more operation space under the limited foramen mirror channel, and the bone removal efficiency is improved. The knurled teeth or bevel teeth are arranged on the curved part, so that the bone tissue around the intervertebral foramen mirror can be better polished or cut.

The invention discloses a joint dilator of an orthopedic knee arthroscope and a control method thereof, and relates to the technical field of medical instruments, the method comprises the following steps: acquiring a geometric center of a preset distraction range and a rotating fulcrum of the dilator, and constructing a preset Y axis according to the geometric center and the rotating fulcrum; when the spreader performs initial rotation by taking a preset Y axis as a rotation axis, the graph acquisition piece acquires an actual image contour in real time; comparing the actual image contour with the target image contour in real time; when the coincidence degree between the actual image contour and the target image contour is a second coincidence degree, the position of the preset Y axis is confirmed again according to the coincident contour between the actual image contour and the target image contour in the first coincidence degree, and an actual Y axis is set; the angle control device is combined with the actual Y axis to control the dilator, through the arrangement, it can be ensured that the dilated range of the dilator coincides with the range corresponding to the actual injury characteristic, and then the wound area of a patient is reduced.

Devices, systems, and methods relating to biased angle receivers for modular pedicle screw assemblies are described herein. The receiver may include a body and a retainer. The body may be configured to be coupled to a bone fastener and a rod for spinal stabilization. The body may also include a base defining an opening from a top end to a bottom end of the base and having a bottom axis at the bottom end of the base. The bottom axis may be obliquely angled with respect to the longitudinal axis of the body. A chamber may be defined within the base and be in communication with the opening. A retainer may be disposed in the chamber and may be configured to expand in an upper section of the chamber to receive a bulbous head of the bone fastener up through a bottom opening of the retainer.

The embodiments provide various interbody fusion spacers, or cages, for insertion between adjacent vertebrae. The cages may have integrated ratchet assemblies that allow the cage to change size and angle as needed, with little effort. The cages may have a first, insertion configuration characterized by a reduced size to facilitate insertion through a narrow access passage and into the intervertebral space. The cages may be inserted in a first, reduced size and then expanded to a second, larger size once implanted. In their second configuration, the cages are able to maintain the proper disc height and stabilize the spine by restoring sagittal balance and alignment. Additionally, the intervertebral cages are configured to be able to adjust the angle of lordosis, and can accommodate larger lordotic angles in their second, expanded configuration. Further, these cages may promote fusion to further enhance spine stability by immobilizing the adjacent vertebral bodies.

The invention provides a zygomatic and wing penetration implantation operation path selection method and device, a medium and a terminal, and the method comprises the steps: setting coordinate information of a plurality of operation path starting points and a target operation region according to the obtained whole head image information of a patient; according to the obtained coordinate information of the multiple preset anatomical points, angle ranges of the multiple preset anatomical points and the target operation area relative to the multiple operation path starting points are obtained through calculation; according to the obtained multiple preset anatomical points and the angle range of the target operation area relative to the multiple operation path starting points, the distances from the operation path to the multiple preset anatomical points are calculated; and according to the calculated distances from the operation path to the plurality of preset anatomical points, calculating to obtain an optimal operation path range and a recommended operation path range. The optimal operation path in the zygomatic and wing penetrating implanting operation process can be calculated, a doctor is assisted in safely and efficiently implementing the zygomatic bone penetrating implanting operation, and the blank of the current market is filled.

The invention discloses a multifunctional guider for olecranal fracture and osteotomy and an implementation method, and belongs to the technical field of surgical auxiliary instruments. The guider comprises a guide fixing plate, a guide sleeve and an adjustable guide assembly, a plurality of sets of positioning holes are formed in the head portion of the guide fixing plate, each set of positioning holes comprises two collinear positioning holes located in the two sides of the head portion of the guide fixing plate respectively, the guide sleeve is installed in one positioning hole in the head portion of the guide fixing plate, and the adjustable guide assembly is installed in the other positioning hole in the head portion of the guide fixing plate. An adjustable guide assembly with an adjustable angle is arranged at the tail of the guide fixing plate, the adjustable guide assembly comprises two sighting device sleeves which are parallel to each other, olecranon hooks are arranged on the guide fixing plate on the two sides of the adjustable guide assembly respectively, and an osteotomy guide opening and a plurality of fixing holes are formed in the middle of 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, accurate osteotomy can be achieved during olecranon osteotomy, follow-up reduction and fixation are completed, and good clinical prognosis is achieved.

Embodiments of the inventive concepts disclosed herein are directed to an angular digital device for loss of distal joint extension. A device formed from a thin, rigid material shaped to fit the dorsal soft-tissue contour of the middle phalanx of a digit with one or more apex volarly angled distal projections which arise at the level of the distal interphalangeal joint and with a thin sling of material secured to the distal projection(s) by which the volar pad of the distal phalanx is supported in order to provide hyperextension of the distal joint of the digit while maintaining tactile function of the pad of the digit.

First and second tracker assemblies each having a single optical marker are secured to a bone, with the first tracker assembly also including a motion sensor. A localizer optically tracks the optical marker positions, and a pose of a tracker coordinate system (TCS) associated with the tracker assemblies according to three positional DOF and two rotational DOF is determined from the tracked marker positions. Measurements from the motion sensor are utilized to determine an angle of inclination with respect to gravity, and an orientation of the TCS according to a further rotational DOF defined about a virtual line extending between the optical markers is determined from the angle of inclination. A pose of the bone according to six DOF is then determined from the determined pose of the TCS according to three positional and two rotational DOF and the orientation of the TCS according to the further rotational DOF.

The invention relates to the technical field of pediatric orthopedic saws, and particularly discloses a multifunctional orthopedic saw which comprises a straight moving mechanism arranged at the bottom of a swing saw body and used for linear limiting movement; the angle adjusting mechanism is arranged at the bottom of the straight moving mechanism, and the angle adjusting mechanism is used for adjusting the angle, so that it is guaranteed that the limb of the patient can be clamped at the needed position when the limb of the patient is clamped; by arranging the clamping mechanism, the two telescopic mechanisms can be driven to get close, then the two telescopic mechanisms are driven to be clamped on the outer side of the limb of the patient, the position of the swing saw body can be fixed by clamping the outer side of the limb of the patient, and the clamping angle can be fixed before clamping by adjusting the position angle of the swing saw body; and after being clamped on the limb part of a patient, the supporting action force can be provided for a doctor to hold, and finally the phenomenon that the arm of the doctor is tired is avoided.

The invention provides a special clinical stomatoscope for the stomatology department, and belongs to the field of medical instruments. Comprising a holding rod, a mirror frame is arranged at the top end of the holding rod, a mouth mirror body is fixedly connected to the inner wall of the mirror frame, a direction adjusting assembly used for adjusting the direction of the mouth mirror body is arranged on the holding rod, and an angle adjusting assembly used for adjusting the angle of the mouth mirror body is arranged on the holding rod. When the stomatoscope body is rotated to an angle at which the oral cavity of the patient can be observed conveniently, the handle is loosened, the first spring rebounds, the sliding block drives the connecting plate, and the stomatoscope body is rotated to an angle at which the oral cavity of the patient can be observed conveniently; a connecting plate drives a bolt to be inserted into a slot to limit a first rack plate, and an angle adjusting assembly is matched, so that the oral cavity of the patient can be examined in multiple directions, and the oral cavity health condition of the patient can be known more comprehensively.

The invention relates to the technical field of medical instruments, and discloses an angle-adjustable artificial hip joint prosthesis structure which comprises a thighbone connecting assembly, an acetabulum connecting assembly and a movable part movably connected between the thighbone connecting assembly and the acetabulum connecting assembly. The thighbone connecting assembly comprises a first connecting unit fixedly connected with the movable part, a thighbone stem detachably connected to the lower end of the first connecting unit, and a connecting screw fixedly connected to the upper end of the thighbone stem and in threaded connection with the first connecting unit. The acetabulum connecting assembly comprises a second connecting unit fixedly connected with the movable part and an acetabulum fixedly connected to the second connecting unit. Stable rotating connection is achieved through the double-shaft moving part, and a traditional easily-abraded spherical surface structure is replaced; the locking assembly is matched to realize personalized angle adjustment and locking; the femoral stem can be detached and replaced, and adaptability is improved; the surface composite coating promotes osseointegration and improves biocompatibility, the overall structure stability is high, adaptability is high, and postoperative recovery is fast.

The invention relates to the technical field of surgery for correcting abnormal femoral neck forward inclination angle, and discloses an assist device for correcting abnormal femoral neck forward inclination angle and a using method thereof.The assist device comprises two handles arranged in parallel, and arc-shaped jaws are fixedly installed at the tail ends of the front end heads; the pressing rod is adjustably mounted at the end of the handle; wherein an arc-shaped bottom plate is fixedly mounted on the outer wall of one arc-shaped plier mouth, and the other arc-shaped plier mouth is rotationally mounted on the arc-shaped bottom plate. According to the assist device for correcting the abnormal femoral neck anteversion angle, through cooperation of the two sets of arc-shaped clamp mouths and the pressing rods, the two sides of a femoral truncation position can be rapidly and stably clamped in an operation, the angle of the truncation femoral can be conveniently adjusted, the truncation femoral can also be held, and after the truncation femoral is rotated to the target angle, the femoral neck anteversion angle can be accurately corrected. The bone fracture plate can be perfectly attached to the bone surface, pressurization and healing of the broken end of the bone are facilitated, and then the postoperative recovery effect is improved.

The invention relates to the technical field of information, and particularly provides a complete denture arrangement virtual simulation method and system, and the method comprises the steps: obtaining the medical record data of a user; the medical record data comprises edentulous jaw soft and hard tissue data, jaw bone data, alveolar ridge morphological parameters, jaw position relation data and facial feature data; determining an initial dental arch curve based on the medical record data; inputting the initial dental arch curve and preset aesthetic parameters into a preset deep learning model to obtain a plurality of initial tooth arrangement schemes; screening the plurality of initial tooth arrangement schemes according to tooth arrangement constraint conditions to obtain tooth arrangement schemes meeting constraints; the tooth position and angle of each tooth arrangement scheme meeting the constraint are adjusted until the preset occlusion balance condition is met, and the first tooth arrangement scheme is obtained, so that the tooth arrangement scheme efficiency of the complete dentures can be improved on the premise that the quality of the tooth arrangement scheme of the complete dentures is guaranteed.

An orthopedic staple system and orthopedic staple are configured to facilitate bone healing through dynamic and adjustable compression. The system comprises the orthopedic staple having a bridge portion and one or more legs that anchor into bone structure. The bridge portion is configurable to include compression features, comprising a pre-compressed chevron, an “S” shaped deformable path, or other suitable geometries to enable active post-operative compression. The staple can be configured to accommodate a single screw or multiple screws, which interact with the bridge to apply targeted compressive forces. Screws can be seated in either fixed or translatable pockets within the bridge, facilitating variable angle adjustments and bone remodeling. This system is optimized for minimally invasive surgical applications, promoting healing and integration, and enhancing overall patient outcomes.

The angle-variable feeding clamping jaw mechanism comprises a supporting rod, a universal joint and a feeding clamping jaw, one end of the supporting rod is connected with a servo motor, the other end of the supporting rod is connected with the feeding clamping jaw, the universal joint is installed between the supporting rod and the feeding clamping jaw, and the feeding clamping jaw is rotationally connected with the supporting rod through the universal joint. A limiting halfpace is further arranged at the joint of the feeding clamping jaw and the supporting rod and fixed to the supporting rod through a bolt. The feeding clamping jaw comprises a connecting part, a supporting part and a clamping part, the connecting part is connected with one end of the supporting part, the clamping part is connected with the other end of the supporting part, the connecting part is located in the limiting halfpace, and the connecting part is rotationally connected with the universal joint. The universal joint is additionally arranged at the connecting position of the clamping jaw air cylinder and the supporting rod, so that the angle of the feeding clamping jaw can be changed when the feeding clamping jaw is subjected to resistance during feeding, packaging materials can be effectively prevented from being burst during bagging of plastic bags and the like, material and labor waste caused by breakage of the packaging bags is reduced, and the qualified rate of equipment products is increased.

The invention relates to a bone cement injection device for skull repair. The bone cement injection device comprises an outer sheath tube, a separate injection structure and an outer push rod, a pushing channel extending in the axial direction is formed in the outer sheath tube, the tube wall of the outer sheath tube is provided with a first hole group and a second hole group which are symmetrically distributed by 180 degrees in the circumferential direction, and each hole group comprises a plurality of via holes arranged at equal intervals in the axial direction; the two symmetrically-arranged separated injection structures are arranged corresponding to the first hole set and the second hole set respectively, each separated injection structure comprises a separated injection pipe, the separated injection pipe is inserted into the pushing channel, a perfusion channel extending in the axial direction is arranged in the separated injection pipe, the near end of the perfusion channel is through, and the far end of the perfusion channel is closed; the rigid contact pins are arranged at equal intervals in the axial direction of the separate injection pipe and penetrate through the side wall of the separate injection pipe at the same circumferential angle, and the inner end of each contact pin is communicated with the perfusion channel. The repairing block can be effectively filled with bone cement, and the effect after skull repairing is improved.

A modular retractor may include a first body portion that houses a distraction mechanism for opening and closing a first arm and a second arm. A first pivoting member may be coupled to a distal end of the first arm and a second pivoting member may be coupled to a distal end of the second arm, for example. A first pin receiving cannula may be coupled to the first pivoting member and a second pin receiving cannula may be coupled to the second pivoting member. The first and second pin receiving cannulas may receive a threaded pin therein and be independently inclinable. Various embodiments may include at least one quick connect coupler. During use, a first pin and a second pin may be secured to a first and second vertebrae for distracting and / or adjusting an angle of inclination of the first and second vertebrae.

Systems and methods for real-time navigation of reaming of an acetabulum are disclosed. A first tracking element is interfaced to a reamer. A second tracking element is interfaced at or near the acetabulum. The first tracking element can be interfaced to an outer casing surrounding a portion of the shaft of the reamer. A depth and a tilt angle of the reamer with respect to the acetabulum are determined, based on a location of the first and second tracking elements. Based on a surgical plan, the depth and the tilt angle, the volume of removed bone from the acetabulum can also be determined.

The utility model relates to the technical field of medical instruments, in particular to a pair of anti-slip rotatable bent three-blade forceps with a suction function for laparoscopic surgery, which comprises a forceps seat, blades, an opening mechanism, a forceps tube, a rotating mechanism, an inner tube, a rotating wheel, a pull rod, a pull wire, a handle and a suction tube, the blade is connected with the clamp seat through an opening mechanism, a rotating opening is formed in the head end of the clamp pipe, the clamp seat is installed on the rotating opening, the inner pipe is located in a pipe cavity of the clamp pipe, a rotating hole is formed in the tail end of the clamp pipe, the inner pipe penetrates through the rotating hole, the head end of the inner pipe is connected with the clamp seat through a rotating mechanism, and the rotating axis of the clamp seat is perpendicular to the rotating axis of the inner pipe. The utility model has the advantages that the front end of the blade is provided with the arc-shaped hook claw, so that deep pelvic tissues can be firmly grasped, and slipping can be effectively avoided; the rotating wheel is operated to adjust the angle of the clamp seat at the rotating opening through the inner pipe and the rotating mechanism, so that the traction effect of the blades is improved; a special suction channel is arranged in the forceps tube and used for sucking smoke, blood and interstitial fluid generated in the operation process.