103 results about "Bone removal" patented technology

An improved orthopedic broach used to prepare an intramedullary canal of a patient's bone such as, for example, a patient's femur, to receive an orthopedic implant such as, for example, a hip stem implant. The broach has differential teeth or tooth patterns. In one preferred example, the broach includes three different types of teeth including diamond teeth, compaction teeth, and extraction teeth. The different teeth patterns being specifically arranged on the sides of the broach to optimize bone removal and bone compaction for a subsequently implanted hip stem implant. In addition, the different teeth patterns and locations enhancing rotational stability. As such, the broach is configured to compact bone in certain areas while removing bones in other areas, all while maintaining broach rotation.

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 manufacturing and application method of a lower jawbone sagittal splitting deboning and nerve protection guide plate, and belongs to the field of medical instruments in surgical operations. The manufacturing method comprises the following steps: S01, acquiring CT data of the lower jawbone of a patient; s02, importing the CT data of the lower jawbone of the patient into three-dimensional software to segment and reconstruct a model of the lower jawbone and the inferior alveolar nerve of the patient; s03, on the segmented and reconstructed mandible model, simulating a sagittal splitting operation of the mandible; s04, according to the simulated osteotomy line, designing a boning and nerve protection guide plate matched with the mandible model; and S05, the boneless and nerve protection guide plate is manufactured through 3D printing. Compared with the prior art, the deboning and nerve protection guide plate matched with the lower jawbone of the patient is customized in a personalized mode through the CT image digital design and the 3D printing technology, and the deboning position of the patient is accurately positioned; and meanwhile, a hand doctor can be helped to control the position of the inferior alveolar nerve, and the inferior alveolar nerve is prevented from being injured during boning.

A system for surgical registration. The system may include at least one computing device in communication with a surgical navigation system and the surgical device. The at least one computing device: a) receiving external bone registration data corresponding to locations on the exterior surface of the femur; b) calculating a first registration transform based on the external bone registration data; c) transforming a first bone removal plan of a surgical plan to the operative coordinate system based on the first registration transform; d) receiving internal bone canal registration data corresponding to at least one of location or orientation data from the inner canal of the femur; e) calculating a second registration transform based on both of the external and internal bone canal bone registration data; and f) transforming a second bone removal plan of the surgical plan to the operative coordinate system based on the second registration transform.

The invention relates to the technical field of medical instruments, in particular to an adjustable bone-to-bone fixing device with a main nail and an implanting mechanism device.The adjustable bone-to-bone fixing device comprises the main nail, a fixing coil, a first auxiliary nail and a second auxiliary nail. Early load-bearing exercise of ankle joints of a patient is facilitated, ankle joint degeneration and traumatic arthritis are reduced, and the risk of fracture of an implant is greatly reduced; compared with elastic fixation, two fixing points are taken on the tibia, one fixing point is taken on the fibula, all the fixing points are connected through sutures, and the length of the sutures is adjustable, so that the tibia can bind the fibula in a surrounding mode through the sutures, compared with a single-strand suture transverse fixation mode, the fixation mode is closer to a native ligament, and fixation is more stable and reliable; and moreover, the micro-motion function between the tibia and the fibula is reserved while the bone removal amount is less.

The poultry claw and tarsal articular cartilage removing device comprises a first connecting block, a second connecting block, a scraping block, a limiting block and an adjusting rod, the scraping block is arranged at the front end of the first connecting block, and the rear end of the first connecting block is connected with the upper end of the second connecting block; the adjusting rod is arranged below the first connecting block and is adjustably connected with the first connecting block or the second connecting block, and the limiting block is arranged at the front end of the adjusting rod. According to the cartilage deboning device, the distance between the limiting block and the scraping block can be adjusted through the adjusting rod, so that the cartilage deboning device can adapt to poultry claws of different specifications, the cartilage deboning efficiency can be effectively improved, and food material waste caused by skin and meat involved by articular cartilage in the deboning process is avoided.

The utility model discloses a chicken leg boning machine which comprises a trapezoid cylinder, a lower pressing rod and a guide rail, the trapezoid cylinder is used for installing the whole device, the lower pressing rod is used for ejecting chicken leg bones, and the guide rail is used for guiding movement of the lower pressing rod; wherein the lower pressing rod comprises a placing base, a limiting block and an abutting plate, the placing base is used for limiting placing of objects, the abutting plate is used for abutting placing of objects needing to be machined, the limiting block is used for sliding of the placing base and the lower pressing rod, and the upper end of the lower pressing rod is slidably connected with a connecting base; the connecting base comprises a rotating disc used for moving the position of the lower pressing rod, and a plurality of connecting bases are fixedly arranged on the peripheral side of the rotating disc. The guide rail is in a high-low shape, so that the downward pressing rods can move from the high part to the low part, then the downward pressing rods can conduct deboning on chicken leg bones, the number of the downward pressing rods is multiple, and therefore the chicken leg bone deboning device can be used by multiple persons, and work efficiency is improved.

The utility model relates to the technical field of meat product processing, in particular to a boning device for meat product processing, which comprises a supporting mechanism and a boning mechanism for boning chicken legs, and the boning mechanism is fixed above the supporting mechanism. According to the chicken leg boning device, the boning mechanism is arranged, the small end of a chicken leg is inserted into the insertion hole, the motor is started, the motor operates to drive the bidirectional threaded rod to rotate forwards, the two clamping blocks are close to each other, and the two clamping blocks close to each other cooperate to clamp and fix the small end of the chicken leg; then the electric push rod contracts to drive the driving box and the clamping block to move leftwards, the clamping block pulls the chicken legs to move leftwards, the chicken leg bones smoothly penetrate through the insertion holes under pulling of the clamping block, the chicken leg meat cannot penetrate through the insertion holes under blocking of the vertical plate, and after the chicken leg bones are separated from the chicken leg meat, the chicken leg meat falls into a right collecting box under the action of gravity; then the motor drives the two-way threaded rod to rotate reversely, the two clamping blocks are far away from each other, and the chicken leg bones fall into the left collecting box under the action of gravity.

A method of providing a guidance device for guiding a bone removal instrument for the removal of bone from a cervical vertebra and providing a vertebral body replacement device for placement into a void in a cervical spine between two endplates of a single vertebra during the course of an anterior spinal surgical procedure upon the cervical spine wherein the vertebral body replacement device has been given a PLR product code from the Food and Drug Administration (FDA).

The disclosed subject matter relates to a system and method for preparing a surface of a bone proximate a joint, in which the preparation includes boring a plurality of arced channels / troughs in the bone surface using an arch drill assembly guided by plural guide bores along a predetermined longitudinal arc. The bored troughs create a scalloped surface on the bone to which an inverse contoured joint insert / implant having cooperating convex ridges engages. The plural guide bores are also defined by the predetermined longitudinal arc which may be circular or helical. The disclosed subject matter minimizes bone removal and allows greater access options for preparing the bone surface.

Methods and systems of placing a medical fastener at a predetermined depth in a bone are described. A surgical tool can include an attachment assembly configured to interchangeably engage a medical fastener and a cutting element or bone removal tool and a drive assembly coupled to the attachment assembly. The attachment assembly can be configured to automatically release the medical fastener in response to the drive assembly reaching its end or distal-most position to place the medical fastener at a predetermined depth within the bone.

Systems and methods of glenoid bone removal in accordance with a surgical plan are disclosed. The surgical plan, which includes a first depth, a second depth, a location, and a trajectory for a glenoid implant relative to a patient's anatomy may be obtained. A feature having the first depth may be resected into the patient's anatomy at the location. A guidewire may be inserted at the trajectory into the patient's anatomy assisted by the feature. Reaming may be performed over the guidewire to the first depth, and a center post hole with a canulated drill bit may be resected over the guidewire to a second depth.

A method for guiding bone removal during a surgical procedure includes receiving a two-dimensional image of at least a portion of a joint during a surgical procedure; determining an alignment of a pre-generated three-dimensional model of the at least a portion of the joint with the two-dimensional image based on one or more features in the two-dimensional image related to the at least a portion of the joint, wherein the pre-generated three-dimensional model contains a representation of planned bone removal; generating an overlay image containing an overlay of at least a portion of the representation of the planned bone removal on the two-dimensional image based on the determined alignment; and displaying the overlay image to guide the bone removal during the surgical procedure.

A method for guiding bone removal includes receiving at least one two-dimensional image of bony anatomy captured by a two-dimensional imaging system and at least one endoscopic image of the bony anatomy captured by an endoscopic imager. A three-dimensional model of the bony anatomy is registered with the endoscopic imager in a common reference frame using the two-dimensional image and a tracking system. A position and orientation of the three-dimensional model relative to the endoscopic image is determined based on registration of the three-dimensional model with the endoscopic imager in the common reference frame. The endoscopic image is displayed simultaneously with at least a portion of the three-dimensional model based on the determined position and orientation of the three-dimensional model relative to the endoscopic image.

To provide a deboning and butchering tool that can efficiently and easily remove the scapula from the processed meat after it has been divided during meat processing. [Solution] The bone removal and dismantling tool has a stem rod portion that extends in a straight line, a claw portion formed at one end of the stem rod portion, and a bone-holding portion that extends in a winding manner from the side to the front, starting from one side of the stem rod portion, and is characterized in that the tip of the bone-holding portion is positioned to cross and extend beyond the front of the stem rod portion.

The invention relates to the technical field of food processing, in particular to a chicken foot toe bone removing device. A second follow fixture is used for fixing chicken foot big bones, a phalanx ejector rod is located below the front side of the device and used for supporting chicken feet, the phalanx ejector rod is located over a phalanx pressing rod, and the phalanx pressing rod is used for being matched with a first ejector rod to fix the chicken feet; the removing device supporting frame comprises a guide column and a lifting device, a mounting seat is in power connection with the lifting device, the mounting seat slides up and down along the guide column under the action of the lifting device, a shaping block and a toe bone shaver are arranged on the mounting seat, the shaping block is located above a removing point of chicken foot toe bones and fixedly connected with the mounting seat, and an opening groove is formed in the extending end of the shaping block. The notch is close to the phalanx ejector rod, interference is formed between the notch wall and the end of the toe bone of the chicken claw, a toe bone shaver driving device is arranged on the installation base, and the toe bone shaver is connected with the toe bone shaver driving device and is close to or far away from the phalanx pressing rod. The problem of removing skin from the phalanx of the chicken claw is solved.

The present technical scheme discloses a bone extractor, comprising a positioning outer cylinder, a bone extracting inner cylinder, a first handle and a second handle; a positioning pin is provided at the front end portion of the positioning outer cylinder, and an internal thread is provided on the inner wall of the positioning outer cylinder; a cutting tooth is provided at the front end portion of the bone extracting inner cylinder, and a closing platform is provided at the rear end portion of the bone extracting inner cylinder; an external thread is provided on the outer wall of the bone extracting inner cylinder, which is mutually matched with the internal thread provided on the inner wall of the positioning outer cylinder, and a first connecting groove is provided on the closing platform; a first connecting key is provided on the first handle, and the first connecting key matches the first connecting groove; the second handle comprises a connecting crank, a rotating handle and a second connecting key, the connecting crank connects the second connecting key with the rotating handle to form a Z-shaped structure, and the second connecting key matches the first connecting groove; the bone extractor can improve the accuracy of bone extraction and realize the controllable bone extraction specifications.

Systems and methods are disclosed that provide a computerized framework for performing decision intelligence (DI)-based evaluation and / or surgery of a patient's spine. The disclosed spinal evaluation framework provides a robotically actuated screw placement and evaluation system. The disclosed framework can be implemented for performing pre-operative, intra-operative, and / or post-operative spinal evaluations / procedures. The disclosed spinal framework can be utilized for robotically actuated pedicle screw placement, robotically actuated bone removal, and / or spinal configuration optimization via spinal flexibility and alignment assessment.

A system for surgical registration. The system may include at least one computing device in communication with a surgical navigation system and the surgical device. The at least one computing device: a) receiving external bone registration data corresponding to locations on the exterior surface of the femur; b) calculating a first registration transform based on the external bone registration data; c) transforming a first bone removal plan of a surgical plan to the operative coordinate system based on the first registration transform; d) receiving internal bone canal registration data corresponding to at least one of location or orientation data from the inner canal of the femur; e) calculating a second registration transform based on both of the external and internal bone canal bone registration data; and f) transforming a second bone removal plan of the surgical plan to the operative coordinate system based on the second registration transform.

Disclosed herein are systems and methods for guiding bone removal. A two-dimensional image that includes bony anatomy and at least one radiopaque object is received. A position and orientation of the radiopaque object(s) relative to a three-dimensional model of the bony anatomy is determined based on the two-dimensional image. An endoscopic image that includes at least one feature associated with the radiopaque object(s) is received. A position and orientation of the feature(s) relative to the endoscopic image is determined. An alignment of the three-dimensional model relative to the endoscopic image is determined based on the position and orientation of the radiopaque object(s) relative to the three-dimensional model and the position and orientation of the feature(s) relative to the endoscopic image. At least a portion of the three-dimensional model is displayed based on the alignment of the three-dimensional model relative to the endoscopic image.

The present invention provides a master-slave dual-arm force-position hybrid control method for tail fork bone boning, including a dual robotic arm composed of a master arm and a slave arm and the following steps: establishing pose constraints and motion constraints between the tail fork bone and the master arm, and between the master arm and the slave arm, so as to form a closed kinematic chain between the dual robotic arm and the tail fork bone, and enabling the slave arm to follow the motion of the master arm; obtaining the position control equation of the robotic arm operation space according to the tail fork bone boning segmentation surface and the closed kinematic chain; obtaining the force control rate of the tail fork bone according to the force on the tail fork bone, and forming a force-position hybrid control law with the position control equation and the force control rate; performing constraint analysis on the tail fork bone meat-bone segmentation surface to determine the boning path and the boning direction at each point of the path; in the tail fork bone removal task, performing master-slave force-position hybrid control on the dual arms, with the master arm tightly holding the tail fork bone and the slave arm performing precise boning operations.

The present invention relates to a shoulder dislocation repair system, comprising: a working channel device for delivering a graft bone block from the front side of the shoulder joint, a guiding device for establishing a glenoid bone tunnel from the back to the front, and a fixing device for fixing the graft bone block in front of the glenoid. The shoulder dislocation repair system of the present invention simplifies the number of surgical tools and optimizes the structural design of surgical tools, thereby optimizing the surgical process and improving surgical efficiency; the shoulder dislocation repair system can use a posterior approach to establish the glenoid bone marrow, avoiding the dense areas of the arteries, veins, nervous system, and lymphatic system on the front side of the shoulder joint, so that the wound is small, the damage to the human body is small, the requirements for doctors are low, the surgical risk is small, and it is easy to promote; the use of suture steel plate pressure fixation can avoid the complications related to screw fixation; the bone removal site is changed to the ilium, which does not change the original physiological structure of the human body and will not cause unknown risks.

The utility model relates to food processing technical field, concretely discloses a kind of chicken feet bone removal device, including bone removal box, rotary motor is equipped in bone removal box, rotary motor's output shaft is fixedly equipped with carousel, the circumferential of carousel is uniformly arranged with multiple fixtures, positioning slot is opened in fixture, bone removal box is sequentially arranged with chicken feet opening mechanism, chicken feet bone removal mechanism and bone removal chicken feet clamping mechanism along the circumferential of carousel;Wherein, chicken feet opening mechanism includes three groups of main toe opening components and a group of big toe opening components, chicken feet bone removal mechanism includes big toe stripping component, three main toe stripping components and leg bone stripping component, along the circumferential of carousel is uniformly and continuously arranged, and is correspondingly equipped with pressing mechanism above fixture;Bone removal chicken feet clamping mechanism is correspondingly arranged above fixture.The utility model improves production efficiency, realizes the continuous, assembly line type automatic processing of chicken feet bone removal, reduces equipment injury risk.

Disclosed is a real-time bone removal ring saw with endoscopic scale visualization for the spine, which comprises a protective sleeve, a saw body, a spinal endoscope and a bone removal amount calculation device; the protective sleeve comprises a hollow tube body, one end of the hollow tube body is arranged in the form of an inclined surface, and the other end is provided with a first handle, the first handle is provided with a first through hole connected to the hollow tube body, the saw body comprises a hollow saw body main part, one end of the hollow saw body main part is provided with saw teeth and the other end is provided with a second handle, the second handle is provided with a second through hole connected to the hollow saw body main part, wherein the hollow saw body main part is arranged in the hollow tube body via the first through hole, and the spinal endoscope is arranged in the hollow saw body main part via the second through hole; and the bone removal amount calculation device calculates one or more of the bone removal area, bone removal depth and bone removal volume.

The present invention provides a tooth root extraction elevator, which relates to the technical field of oral medical instruments, and comprises a gripping part, a connecting part and an ejecting part; the gripping part is connected to the ejecting part through the connecting part, and the gripping part is convenient for transmitting force through the connecting part; the connecting part and the ejecting part are arranged at an obtuse angle, so when the ejecting part acts on the residual root, broken root or residual crown, the excessive pulling on the corners of the patient's mouth is reduced, and the risk of straining or tearing the corners of the mouth is reduced, thereby strengthening the protection of the corners of the mouth, and embodying the "love injury concept"; the inner concave part is provided with an arc groove, so that it can more smoothly reach the root bifurcation of the neck of the residual crown or the root surface near the root of the residual root and the broken root, or even the root apex, reducing the waste of time for flap bone removal and excessive damage to soft tissue, embodying the "minimally invasive concept", eliminating the difficulty that the tooth root extraction elevator cannot fit the root shape, and alleviating the technical problem in the prior art that the tooth elevator cannot accurately apply force, resulting in accidental injury and extraction failure.

A bone removal device, including an elongated shaft having a longitudinal axis, a distal end and a proximal end; a movable bone borer movably coupled to the distal end of the elongated shaft, wherein the movable bone borer is configured to rotate around the longitudinal axis; and a rotatable bone borer adjuster mounted on a proximal side of the elongated shaft and to the movable bone borer, wherein the adjuster is configured to rotate around an axis which is different from a rotation axis of the movable bone borer.

A method of providing a guidance device for guiding a bone removal instrument for the removal of bone from a cervical vertebra and providing a vertebral body replacement device for placement into a void in a cervical spine between two endplates of a single vertebra during the course of an anterior spinal surgical procedure upon the cervical spine wherein the vertebral body replacement device has been given a PLR product code from the Food and Drug Administration (FDA).

The present invention discloses a ball probe ultrasonic bone removal device that is designed to assist surgeons with foraminotomy procedures. The device comprises a shaft at a first end of the device and a spherical ball tip at a second end of the device. In between the shaft and the ball tip is a foot piece that connects to the shaft through an angle. On the foot piece, serrations or a coarse surface cover a portion of the circumference of the foot piece. In some embodiments, serrations or a coarse surface may also cover a portion of the circumference of the shaft. The spherical ball tip is smooth and designed to cause no damage to the sensitive nerves and tissue in the intervertebral foramina, but the surface with the serrations or the coarse protrusions are designed to remove bone and tissue under ultrasonic movement (e.g., vertical vibration, rotational oscillation).

A surgical device for cutting or shaving bone or tissue includes a housing (20) having an elongated tube (12) extending therefrom, the elongated tube (12) configured to support a surgical tool (100) at a distal end (16) thereof. A gear assembly (40) is disposed within the housing (20) and is configured to control oscillations of the surgical tool (100). A motor (50) is operably coupled to the housing (20) and is configured to drive the gear assembly (40) when the motor is actuated. The motor (50) is movable relative to the housing (20) to adjust one or more gears of the gear assembly, which in turn adjust an oscillation angle of the surgical tool to control invasiveness of the surgical tool when cutting tissue or bone.

A surgical device for cutting or shaving bone or tissue includes a housing having an elongated tube extending therefrom, the elongated tube configured to support a surgical tool at a distal end thereof. A gear assembly is disposed within the housing and is configured to control oscillation of the surgical tool. A motor is operably coupled to the housing and is configured to drive the gear assembly upon activation thereof. The motor is moveable relative to the housing to adjust one or more gears of the gear assembly which, in turn, adjusts an oscillation angle of the surgical tool to control the aggressiveness of the surgical tool when cutting tissue or bone.