152 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.

A bone cutting device, such as a burr or saw blade, is irrigated to cool not only the bone cutting device itself, but also the bone of the subject on which a bone resection procedure is being performed. The bone cutting device can have one or more (e.g., a plurality of) internal flow channels that eject a cooling medium (e.g., water or an inert gas) from the bone cutting device. This emission of the cooling medium can not only flush bone chips from the resection site, thereby reducing frictional heating of the bone cutting device, but can also provide internal cooling to the bone cutting device while flowing through the one or more internal flow channels and also can cool the surface of the bone via conductive heat transfer (e.g., by the flow stream of the cooling medium impinging on the bone surface).

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.

An orthopedic implant includes a main body, which has a downward tapered configuration formed of a plurality of steps of different diametrical sizes arranged along a drilling axis, each of the steps includes a cylindrical and a conical section, and the conical section of the lowest and diametrically smallest step is downward tapered into an apex; an external thread, which is externally formed on the main body to cover all the cylindrical sections but not the conical sections; a plurality of lateral cutting flutes, which are formed on the external thread into the main body and extended from the apex to the diametrically largest step with a spacing distance left between upper ends of the lateral cutting flutes and a top of the largest step. The orthopedic implant can be independently driven into a bone without the need of bone cutting using drill bits in advance and enables good osseointegration.

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.

The utility model relates to the technical field of medical instruments, in particular to a multi-scene use bone hammer which comprises a handle rod, a bone hammer column head arranged at one end of the handle rod, a first bone hammer head arranged at one end of the bone hammer column head and a second bone hammer head arranged at the other end of the bone hammer column head. And the second bone hammer head is a plastic bone hammer head. In a knee joint replacement operation, an original bone surface needs to be cut off, a bone hammer and a bone knife are used in cooperation, at the moment, a first bone hammer head (namely a metal bone hammer head) needs to be used for knocking the tail of the bone knife, bone cutting is achieved, and after the bone is cut off, a metal joint is fixed to the surface of the joint after the bone is cut off; the second bone hammer head (namely the plastic bone hammer head) is used for knocking a metal joint, fixation and replacement of the joint are achieved, the applicability of the bone hammer is improved, and the multi-scene use requirements of the bone hammer are met.

Surgical instruments with ultrasonic cutting and sensing capabilities, as well as related systems and methods, are disclosed herein. In one aspect, the present disclosure provides a surgical instrument including a housing; an ultrasonic transducer contained in the housing and capable of acting as an ultrasonic receiver; an output member at least partially received in the housing and configured to be driven by the ultrasonic transducer; a dissection head having an attachment portion configured to be selectively driven by the ultrasonic transducer; and a controller operable to initiate and stop the ultrasonic transducer according to an alternating duty cycle.

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 present invention relates to an automatic "scissors"-type bone groove decompression head device for spinal surgery, which includes a head connecting seat. A stepped cavity is arranged inside the head connecting seat, and a telescopic guiding device is arranged inside the stepped cavity. The telescopic guiding device includes a telescopic column. An adjustment space is arranged between the stepped cavity and the telescopic column. An upper telescopic spring is arranged at the upper end of the adjustment space, and a lower telescopic spring is arranged at the lower end of the adjustment space. The upper end of the telescopic column is connected with a bone cutting power device, and an electric knife and a suction device are arranged inside the telescopic column. Thus, through the cooperation between the clip and the working channel, a clip structure can be formed, which is convenient for clamping the spinous process for positioning. By the vertex of the clip, the head is rotated to judge whether the head is perpendicular to the human bone, which is convenient for improving the surgical precision. The telescopic column automatically adapts to the height change of the lower surface of the bone, and the bone cutting power device and the electric knife hook form a "scissors-like" structure, which is beneficial to safely realizing bone groove decompression.

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.

The invention belongs to the field of osteotomy robot control, and particularly relates to a tibia resection operation virtual wall construction method based on force vector prediction, which comprises the following steps of: 1) calibrating and acquiring a multi-coordinate system transformation matrix among a mechanical arm base coordinate system, a navigator coordinate system, a sawdust placing end coordinate system and an osteotomy plane coordinate system; 2) collecting an acting force vector in real time through a six-dimensional force sensor, and mapping force information into a position increment of the tail end of the mechanical arm; (3) the position of the sawdust swinging end of the mechanical arm at the next moment is predicted according to the position increment; 4) judging whether the current position and the predicted position exceed the boundary or not; and 5) dynamically adjusting the position constraint of the swing saw dust end according to the border crossing state of the current position and the predicted position, so that the tail end of the swing saw blade is always in the virtual border. The real-time position information collection and prediction algorithm is combined, the hysteresis problem of a traditional pure vision system is solved, the virtual wall limitation can be generated in advance when the swing saw is close to the operation boundary, and quick response of the system is ensured.

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.