117 results about "Bone cutting" patented technology

A metatarsus adductus technique may involve cutting an end of one or both of a second metatarsal and an intermediate cuneiform to create a wedge-shaped opening between the end of the second metatarsal and the intermediate cuneiform. The method may further involve cutting an end of one or both of a third metatarsal and a lateral cuneiform to also create a wedge-shaped opening between the end of the third metatarsal and the lateral cuneiform. The second metatarsal and the third metatarsal can then be moved in a transverse plane to close a metatarsus adductus angle. Movement of the second and third metatarsal may close the wedge-shaped openings forming during bone cutting. With the second and third metatarsals appropriately realigned, the clinician can fixate the moved position of the second metatarsal and the third metatarsal.

The invention relates to the technical field of oral medicine, in particular to an intelligent navigation system and method for alveolar bone finishing based on image data fusion, and the system comprises a real-time bone mineral density sensing module which obtains a bone mineral density value through laser scanning and adjusts the temperature; the personalized bone mineral density self-adaptive control module is used for adjusting a bone trimming tool and temperature compensation according to the bone mineral density value; the multi-sensor data fusion module is used for dynamically monitoring the bleeding amount and compensating mechanical vibration of equipment; and the bone cutting path space sensing module is used for acquiring a bone cutting path by combining laser scanning data, CT data and optical coherence tomography data, and determining a real-time path of the tool according to temperature and bleeding amount change. According to the system, through an anti-penetration protection mechanism combining real-time bone mineral density perception, multi-scale tactile feedback and visual enhancement, the penetration risk is remarkably reduced, the operation safety is improved, and the penetration risk is reduced by 93% through the anti-penetration mechanism.

A surgical bone cutting system includes a trajectory guide and an osteotome or trepanation tool with a generally square cutting tip that creates a corridor through bone, for example, in the context of spine, through a facet joint or other vertebral structure and to the disc space between two vertebrata for any of a variety of surgical procedures, including but not limited to disc prep and cage insertion. The osteotome fits into the trajectory guide to contact bone and effect creating a bony corridor. In some embodiments, the trajectory guide includes a cylindrical allograft collection chamber, and the trajectory guide and osteotome fit into standard tubular retractors and are agnostic with respect to receiving standard drill bits or a powered auger insertable through a center through channel.

The invention discloses a bending-adjustable endoscope type liver cutting radiofrequency ablation electrode, and relates to the technical field of medical apparatuses and instruments. The device comprises a handle, the top of the handle is provided with a depth adjusting block, one side of the handle is provided with a trigger, the top of the trigger is provided with an extension rod, one side of the extension rod is fixedly connected with an adjustable bent pipe, and one side of the adjustable bent pipe is provided with a cutting electrode. Through the design of the adjustable bent pipe and the snake bone cutting structure, the front end of the instrument can realize multi-angle flexible bending, the surgical operation range is obviously expanded, the instrument is particularly suitable for areas such as the back of the liver which are difficult to directly touch, dependence on other auxiliary instruments is reduced, the flexibility and operability of the surgery are improved, and the surgical efficiency is improved. The depth limiting head is linked with the trigger, and the seven-gear design of the depth adjusting block is matched, so that the depth of the cutting electrode penetrating into the liver can be accurately controlled, excessive puncture or insufficient ablation is avoided, and the safety and effectiveness of an operation are improved.

Bone channel preparation systems and methods are provided herein. In one exemplary embodiment, a rotary input shaft, a drill guide, a roller cam, a bone cutting bit, and a flexible or articulating drive shaft are provided. The roller cam may be sized and shaped to be slidably received within an aperture of the drill guide. The bone cutting bit may be coupled to the roller cam, and the flexible or articulating drive shaft may be configured to rotationally couple the roller cam and the bone cutting bit to the rotary input shaft while allowing lateral movement therebetween. In this exemplary arrangement, the roller cam is configured to follow an inner contour of the aperture such that the bone cutting bit cuts a non-circular bore into one or more bone segments for receiving a complementary shaped non-circular implant.

The application discloses a preparation method of a customized porous TMJ prosthesis deposited with europium-doped black phosphorus nanosheets, and comprises the following steps: S1, CBCT is used to shoot medical image data, which is imported into Mimics software to reconstruct a model, the reconstructed model is imported into Geomagic software to simulate bone cutting, and a craniofacial model STL file is obtained; S2, TMJ prosthesis customization design is performed on the craniofacial model STL file; S3, SLM printing technology is adopted to perform 3D printing on the customized TMJ prosthesis model, and a prosthesis entity is obtained; and S4, a polydopamine europium-doped black phosphorus nanosheet surface coating is constructed on the porous region of the prosthesis entity model. The application realizes product customization by adopting computer-aided design and three-dimensional printing technology; the europium-doped black phosphorus nanosheet coating is constructed on the porous region of the prosthesis, the mandibular stump and the buccal region are promoted to grow into bone, the traditional "two-dimensional fixation" is changed into "three-dimensional fixation", and the limitation of screw loosening, falling off and bone resorption is got rid of.

A guide device includes: a guide portion guiding a bone cutting tool; a retractor portion arranged so as to be spaced apart from the guide portion in a first direction; a connection portion that connects the guide portion and the retractor portion; and a fixing portion that fixes the guide portion with respect to the tibia. The guide portion has a guide hole penetrating the guide portion in the first direction and extending in a second direction intersecting the first direction. The retractor portion is disposed in a region overlapping at least the guide hole in a plan view in the first direction.

This invention discloses an automatic poultry carcass segmentation machine and a method for separating M-bone or small breast carcass halves, relating to the technical field of poultry processing equipment. The automatic segmentation machine includes a transfer track, an M-bone cutting unit, and a small breast carcass halves cutting unit. The M-bone cutting unit is located downstream of the transfer track and includes a cutting track, a first conveyor chain, and an M-bone cutter. The M-bone cutter has a cutting working position and a clearance working position. When it is necessary to cut and separate the M-bone from the carcass to be segmented, the M-bone cutter is in the cutting working position; when it is not necessary to cut and separate the M-bone from the carcass to be segmented, the M-bone cutter is in the clearance working position. The small breast carcass halves cutting unit and the M-bone cutting unit selectively receive the carcass to be segmented, and include a discharge guide rod, a small breast carcass slide rail, a second conveyor chain, and a small breast carcass halves cutting unit. This invention can flexibly adapt to two processing needs, has a high degree of automation and production efficiency, and is suitable for large-scale continuous production.

The present invention provides a deep learning-based automated planning method and system for simulated knee joint surgery. The method comprises: acquiring a medical image of the knee joint and converting pixels in the image into actual lengths; selecting key area images of the knee joint image, performing target detection on the key area images, and extracting key points; using the coordinates of the extracted key points, annotating the key points and force lines, calculating the correction angle, and then calculating the rotation angle, simulating bone cutting and rotation to obtain a surgical planning image, and automatically planning two types of surgeries: high tibial osteotomy and distal femoral osteotomy. The present invention uses deep learning technology to predict the locations of key points and calculate the angles of force lines in lower limb X-rays. The surgeon can select from eight surgical options based on the displayed angles. The system automatically plans and simulates the options, eliminating the need for manual operation and significantly improving work efficiency.

The invention discloses an oral osteotomy navigation system based on mixed reality interaction, which relates to the technical field of stomatology and comprises a preoperative sensing module, an oral model construction module and a deformation analysis module. According to the method, real-time acquisition of intraoperative biomechanical signals is realized through a sensor array, an oral cavity model is established to reproduce the geometrical morphology and spatial relationship of bones and nerve blood vessels, key anatomical labeling and biomechanical attribute labeling are performed on an oral cavity operation area, the biomechanical signals are input into a pre-trained deformation prediction model, and a deformation prediction result is obtained. The method comprises the following steps: dynamically updating the structural shape of an oral cavity model, predicting the movement risk of a surgical instrument in the next few seconds based on the updated model, calculating and generating a three-dimensional virtual safety protection area according to an operation prediction risk result and the real-time position of the surgical instrument, and defining a clear safety range for surgical operation. And the safety protection area range and the warning intensity are automatically adjusted according to the bone hardness and the instrument approaching speed, and operation constraint and guidance on the physical level are achieved.

The utility model discloses a jean bone cutting and collecting device, which relates to the field of meat product processing, and comprises a connecting arm, a transverse air cylinder, a vertical air cylinder, an L-shaped seat, a material pushing plate and two vertical arms, the connecting arm is detachably arranged at the top ends of the two vertical arms, the bottom ends of the vertical arms are provided with connecting assemblies used for being connected with a cutting table, and the transverse air cylinder and the vertical air cylinder are arranged on the L-shaped seat. The L-shaped base, the vertical air cylinder and the material pushing plate are made to move rightwards by controlling extension of the transverse air cylinder, after the material pushing plate moves to a proper position, extension of the vertical air cylinder is controlled, the material pushing plate is made to make contact with the table top of the cutting table, and the material pushing plate is made to move leftwards by controlling contraction of the transverse air cylinder. The material pushing plate pushes the jeans on the cutting table into the collecting frame in the moving process, so that automatic pushing and collecting of the jeans are achieved, manual intervention is reduced, product sanitation is guaranteed, and production efficiency is improved.

The present disclosure relates to the technical field of medical instruments, in particular to a series of instruments for exposure of lesions posterior to talus dome, including: a lesion exposure spreader configured to spread an ankle joint, a retractor configured to laterally retract tissue, and a talus lesion bone extractor configured for lesion debridement and bone extraction. The lesion exposure spreader includes a fixed handle. A supporting strip is fixedly arranged on one side of the fixed handle. A movable handle and a locking mechanism are slidably connected to the supporting strip. Fixing nails are arranged at the tail ends of the fixed handle and the movable handle. The retractor includes a retractor handle. The tail end of the retractor handle is bent and extends downwards, and the bent and extending part is a retractor blade. The talus lesion bone extractor includes a round bone extraction rod and a steering rod. The steering rod is detachably connected to the head end of the round bone extraction rod. A bone cutting end and a bone extraction section are sequentially arranged at the tail end of the round bone extraction rod. The bone cutting end is a conical annular cutting edge. A bone extraction groove is formed in the side wall of the bone extraction section. The bone extraction groove is communicated with the bone cutting end, and a bone block cut by the bone cutting end is extracted from the bone extraction groove. According to the present disclosure, lesion exposure and surgery field illumination are increased.

The present application provides a total knee arthroplasty robot auxiliary system, a control method, electronic device and a computer readable medium. The auxiliary system comprises: a preoperative planning system configured to formulate a preoperative plan, preoperative plan data including a knee joint image; an intraoperative planning system configured to formulate an intraoperative plan, wherein the knee joint image in the preoperative plan and a knee joint surface contour of the patient determined in an operation are subjected to image registration, knee joint dynamic spacing force line data at a continuous flexion-extension angle is acquired, a dynamic spacing force line data graph is visually displayed, and a prosthesis plan is adjusted according to the visual display of the dynamic spacing force line data graph to obtain the intraoperative plan; and an executing system, wherein a bone-cutting guide mounted at an operating end of a mechanical arm of a surgical robot is guided to be located in a planned predetermined position according to the intraoperative plan, and the bone-cutting guide is configured to locate a bone-cutting saw.

The invention discloses an electric gun type occlusal cutting device for a bony structure, which comprises a handle, an electric gun and an electric gun, the motor is mounted on the base; the fixed clamp body is fixedly mounted at one end, far away from the motor, of the base; the push-pull clamp body is connected to the fixed clamp body in a sliding manner; one end of the sliding assembly is connected to the motor, the other end of the sliding assembly is connected with the push-and-pull clamp body, the sliding assembly is used for pushing the sliding action of the push-and-pull clamp body so as to shear bones, the motor is arranged to drive the sliding assembly to move, the push-and-pull clamp body is pushed to slide on the fixed clamp body, and therefore the bones can be sheared. A shearing effect is formed between the push-pull forceps body and the fixed forceps body, bone cutting is achieved, rotating motion of the motor is converted into linear sliding motion of the push-pull forceps body, the problem of abrasion of gear transmission can be avoided, the linear motion is easier to accurately control, and improvement of operation accuracy is facilitated.

A system for performing a minimally invasive interventional fusion procedure on a sacroiliac joint of a patient. The system may include a disposable sterile packed implant and kit including access, bone cutting, accessory and extraction instruments.

The utility model relates to the technical field of orthopedic appliances, and discloses an osteotomy device which comprises a fixed rod part, a rotating rod part and an osteotomy needle knife positioning insertion plate part, one end of a second rod body of the rotating rod part is connected to a connecting shaft end arranged on a first rod body, and an angle arc rod is arranged at the other end of the first rod body. The other end of the second rod body is arranged on the angle arc rod in a sleeving mode through the sleeve frame end, and the osteotomy needle knife positioning insertion plate part is movably installed in the connecting groove channel, so that the osteotomy needle knife positioning insertion plate part can move on the first rod body and the second rod body; the distance between the osteotomy needle knife positioning insertion plate part and the positioning stop lever is adjusted by moving the osteotomy needle knife positioning insertion plate part, so that bones with different diameters can be conveniently clamped and fixed, and the angle between the first rod body and the second rod body is adjusted by rotating the second rod body, so that the angle between osteotomy needle knives inserted into the osteotomy needle knife positioning insertion plate part is adjusted.

1. The name of this design product: Ring saw. 2. Purpose of this design product: used for bone cutting and repair in surgical operations. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The application discloses a prosthesis system for minimally invasive femoral head replacement, which comprises a bone cutting assembly, a prosthesis, an extension rod, a guide frame and a locking nail. In the operation, only a small opening is needed on the lateral side of the femoral neck, and then a channel is established, and the prosthesis is implanted in the channel, so that the degree of trauma, the operation time and the blood loss are greatly reduced. A detachable extension rod is arranged on the implanted prosthesis, and after the extension rod is positioned by cooperating with the guide frame, the extension rod can guide the path of the locking nail, so that the locking nail is connected with the prosthesis, and is fixed with the large and small trochanters of the patient, so that the prosthesis can be combined with the relatively hard bone and the surface layer of the femoral neck to achieve stable combined support and avoid loosening of the prosthesis.

An apparatus and methods are provided for a one-step dental implant that avoids pressure points and heat production within a patient's bone. The dental implant includes a bone cutting portion having a centering tip surrounded by bone cutting edges and soft tissue knives. The centering tip perforates the gingiva while the soft tissue knives dissect the gingiva with a precise circular cut. The bone cutting edges chisel the bone as the dental implant is tightened into the bone. Deflecting sides direct bone powder into axial bone storage areas. A gingival sealing portion includes a cylindrical portion that fits into cortical bone without friction or exerting pressure on the bone. The cylindrical portion removably retains components that include a silicone O-ring. Engaging sections of the cylindrical portion enable driving the dental implant into the patient's bone. Internal threads of the cylindrical portion enable clamping abutments onto the dental implant.

1. The name of the design product: bone cutting knife. 2. The use of the design product: for cutting bone. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The top view has been embodied in perspective view 2, so the top view is omitted; the bottom view has been embodied in perspective view 1, so the bottom view is omitted.

The utility model belongs to the technical field of medical instruments, and particularly relates to a gingival cutting and bone cutting combined type guide plate which comprises a gingival protecting guide plate made of rubber materials, an adjusting guide plate is installed on the left side face of the gingival protecting guide plate, and the adjusting guide plate and the gingival protecting guide plate are made of the same materials. A first tooth fixing plate is fixedly connected to the position, close to the front face, of the right side face of the gum protecting guide plate, a first movable adjusting plate is fixedly connected to the position, close to the back face, of the right side face of the gum protecting guide plate, the first movable adjusting plate and the first tooth fixing plate are both made of hard plastic materials, and a second movable adjusting plate is fixedly connected to the position, close to the front face, of the left side face of the adjusting guide plate. A second tooth fixing plate is fixedly connected to the position, close to the back face, of the left side face of the adjusting guide plate, and the gingival cutting and bone cutting combined guide plate has the advantages that the guide plate can be applied to gingival cutting and bone cutting operations, so that the cost is effectively saved, and loss is reduced.

Embodiments of the present application provide a surgical reference scheme generation method and device, and relate to the technical field of data processing. The method comprises: obtaining a three-dimensional model of a distorted part of an object body, and obtaining bone cutting line information and a correction angle for correcting a distorted bone of the distorted part based on the three-dimensional model; determining a key point on the distorted bone in the three-dimensional model; adjusting data of the distorted bone in the three-dimensional model based on the bone cutting line information and the correction angle, to obtain an adjusted three-dimensional model as a three-dimensional model of the distorted part after a bone cutting operation on the distorted bone; determining a position of installing a steel plate on the distorted bone based on a target position and a preset position conversion relationship; and generating a surgical reference scheme with position information of the determined position as reference information. The scheme provided by the embodiments of the present application can generate a surgical reference scheme, and can provide reference information for doctors.

The application discloses a cutting-off machine with a composite cutter mechanism and relates to the technical field of bone cutting machines. The cutting-off machine comprises a workbench, a fixed matching cutter arranged on the workbench, a moving cutter arranged above the fixed matching cutter, a movable matching cutter arranged below the fixed matching cutter, and a driving mechanism capable of driving the moving cutter to move. The driving mechanism is connected with the moving cutter, so that the moving cutter cooperates with the fixed matching cutter and the movable matching cutter to realize cutting. The workbench is provided with a cutter holder for mounting the movable matching cutter. A connecting device is arranged between the movable matching cutter and the cutter holder. An elastic member is arranged between the movable matching cutter and the cutter holder. The movable matching cutter is provided with an adjusting device for adjusting the connecting device. The application is suitable for cutting off small batches of food such as meat and bones, can better cut off meat with more tendons, has small noise and low energy consumption, and the cutting knife is convenient to disassemble, grind or replace.

A surgical instrument employs a mass-spring system to drive the periodic reversal of the rotational direction of a bone dissection head. The instrument comprises a housing, a harmonic oscillator contained in the housing, an output member at least partially received in the housing and configured to be driven by the harmonic oscillator to reversibly rotate about a longitudinal axis in alternating directions, a dissection head having an attachment portion configured to be selectively driven in alternating rotational directions by the output member to remove material from a target bone, and a controller operable to initiate and stop the harmonic oscillator.

The invention discloses an efficient intelligent feedback bone cutting device and method based on multi-laser monitoring, and the device comprises a sample table for fixing a to-be-cut bone, a composite laser cutting module for cutting the to-be-cut bone, and a laser flow measurement module for monitoring and adjusting the water flow state. The laser density measurement module is used for measuring the density and the laser absorptivity of the bone to be cut in a non-contact manner; the distance laser ranging module is used for measuring the distance between a cutting laser head and a cutting surface; the temperature detector is directly aligned with the cutting area and used for monitoring the temperature of a cutting point in real time; the ultrasonic thickness gauge is used for measuring the thicknesses of different positions of the cut bone; the indication light source is used for indicating a laser cutting position and assisting in positioning; the computer controller is used for data acquisition, processing and closed-loop control; according to the invention, accurate presetting of composite laser parameters is realized through analysis of skeleton features, high-precision cutting of different skeletons is carried out, and monitoring and key parameter detection of the skeletons and the cutting process thereof are carried out.

The utility model discloses a tibia vertical osteotomy auxiliary device for unicompartmental knee arthroplasty, and relates to the technical field of unicompartmental knee arthroplasty. The device comprises a base, a stand column, a machine box, a winding shaft, an inhaul cable and a drag hook, a fixing area is arranged in the middle of the base, the stand column is arranged at the upper end of the base, the machine box is arranged above the stand column, and a small self-locking motor is fixed in the machine box. According to the utility model, the inhaul cable and the drag hook are locked through the small self-locking motor, the winding disc, the motor driver and the touch screen, so that medical personnel can adjust the degree of tightness of traction according to the number of turns of winding of the winding disc as required, and an assistant can carry out long-time bare-handed traction; secondly, the two extendable extension rods and the corresponding drag hooks are mounted on the mounting seat, so that the medical staff can adjust the distance between the two drag hooks according to the exposure requirement of the surgical incision, the surgical exposure area is expanded, and a doctor can conveniently perform an operation.

The application provides a plane cutting control method and device and a storage medium, which comprises the following steps: positioning a mechanical arm to a preset cutting surface, and constructing a saw blade coordinate system; obtaining a force F of the saw blade; projecting the force F onto a plane of the saw blade; determining an offset; determining a coordinate transformation matrix T of a current point relative to an initial point a ; judging whether an offset point is within a preset safety boundary; if yes, determining the offset point as a target point to which the saw blade will go at a next moment; if no, determining an intersection of a line connecting the current point and the offset point and the safety boundary, and setting the intersection as the target point; and determining a spatial motion instruction to be sent to the mechanical arm in a current control period. By using the above technical scheme, the plane control precision can be improved, the mechanical arm motion can be ensured within the bone cutting plane, the influence of the force perpendicular to the plane on the bone cutting plane precision can be reduced, the mechanical arm motion can be ensured within the safety boundary, and the patient can be prevented from being injured by mistake.

The invention discloses a cutting device for butt joint hand bone surgery, and relates to the technical field of medical equipment, the cutting device comprises a bottom plate, a front end module fixed on the bottom plate, a rear end module and a cutting knife; the rear end module comprises a fixed plate and a sliding plate, the sliding plate is slidably connected to the right end of the fixed plate, a locking ring is slidably connected to the interior of the fixed plate, the locking ring is connected with the sliding plate through a pull rope, and the locking ring is driven by movement of the sliding plate to conduct traction type fixation on the phalanx; an adjusting unit is arranged between the fixing plate and the sliding plate and used for being matched with the pull rope to pull, fix and adjust the finger bone cutting position. The technical effects that the cutting range is expanded, the positioning flexibility is improved, the application range is expanded, and the cutting precision is improved can be achieved.

The application provides an oral bone cutting navigation system, method and storage medium based on mixed reality interaction, and belongs to the oral medical field. The oral bone cutting navigation system comprises a data processing module, a mixed reality display module, a navigation module and related navigation markers. The system combines the mixed reality display technology with the navigation system to realize accurate navigation of the oral bone cutting operation. The system can intuitively display the bone cutting line and the virtual operation area, so that the doctor does not need to frequently switch the line of sight during the operation, and can obtain the bone cutting position, depth and angle and other information in real time and accurately, thereby improving the operation precision and efficiency, reducing the operation trauma and improving the operation effect.

The invention discloses a precise osteotomy device for oral and maxillofacial regions, which relates to the field of jaw osteotomy and comprises a bone saw and a connecting ring. A saw blade is arranged at the end of the bone saw, a fixing base is fixedly connected to the bone saw, a water spraying pipe used for spraying normal saline to the saw blade is slidably connected to the fixing base, and the end of the water spraying pipe communicates with a connecting pipe. The bone saw comprises a saw blade and a connecting ring fixed to the end of the bone saw, a connecting column is fixedly connected to the end of the connecting ring, and an automatic spraying structure is arranged in the connecting column and used for automatically spraying normal saline to the saw blade. Normal saline is sprayed to the saw blade, and in the process, the water spraying pipe is driven to move front and back under the action of the moving assembly, so that the saw blade is rapidly and uniformly cooled, and the problem that in the prior art, normal saline needs to be manually injected to the saw blade for cooling the saw blade, and consequently osteotomy is inconvenient to operate is solved.