40 results about "Bones parts" patented technology

The invention discloses an image processing method and device, equipment, a medium and a program product. The method comprises the following steps: acquiring three-dimensional image data and a two-dimensional projection image of a target bone segment; determining a target bone part in the two-dimensional projection image of the target bone segment according to the projection direction of the two-dimensional projection image of the target bone segment; segmenting the three-dimensional image data of the target bone segment to obtain three-dimensional image data of the target bone part; determining two-dimensional contour data of the target skeleton part based on the three-dimensional image data of the target skeleton part; and superposing the two-dimensional contour data of the target bone part into the two-dimensional projection image of the target bone section to generate a target image marked with the contour of the target bone part. According to the method, the display effect of the image is remarkably improved, and the readability and the information amount of the image in medical diagnosis and research are enhanced.

The present application discloses an artificial joint and a method for monitoring wear of the artificial joint. The artificial joint includes an acetabular part and a prosthetic bone part disposed within the acetabular part, and the prosthetic bone part and the acetabular part are capable of relative sliding. A dielectric layer is provided on a surface of the acetabular part facing the prosthetic bone part. When the prosthetic bone part and the acetabular part slide relative to each other, triboelectrification can occur between the prosthetic bone part and the dielectric layer. A first electrode and a second electrode are provided between the dielectric layer and the acetabular part, and both the first electrode and the second electrode are in contact with the dielectric layer. In the artificial joint of the present application, when the prosthetic bone part and the acetabular part slide relative to each other, an alternating current signal is generated between the first electrode and the second electrode due to contact electrification and the electrostatic induction effect. When debris is generated at the sliding interface between the prosthetic bone part and the dielectric layer, the alternating current signal decreases, thereby achieving the purpose of monitoring the generation of wear debris. The monitoring of wear debris is in-situ monitoring, which is more direct and timely, can give an early warning of the failure of the joint friction pair, and prevent the occurrence of corresponding diseases of the artificial joint.

The invention relates to a device (1) for treating bone fractures, in particular for treating femoral fractures, such as femoral neck fractures, comprising a fastening part (4) which can be fastened in or on a first bone part, the fastening part (4) having at least one opening (5) through which a bone screw (6) and an adjusting screw (7) are guided, a surface with a threaded surface is arranged on the inner side of the opening (5), an adjusting screw (7) is meshed in the threaded surface, a bone screw (6) can freely slide in the opening, and the adjusting screw (7) is configured to enable the bone screw (6) to selectively slide laterally and then abut against at least one limiting portion (26) of the adjusting screw (7). According to the invention, an adapter (10) which can be fixed in the bone screw (6) and which can be laterally released is provided, said adapter (10) forming a barrier (11) for the adjustment screw (7) when the adjustment screw (7) is laterally moved.

The invention relates to surgical forceps for holding two bone parts of a fractured bone at a bone fracture site comprising a first forceps part extending in a radial direction and a second forceps part extending in the radial direction rotatably held in a rotational direction about a pivot via a lock on the first forceps part, each forceps part having a forceps head with a clamping section at one end in the radial direction such that the bone parts are clampable between the forceps heads at the clamping sections, characterised in that each forceps part has a shoulder between the clamping sections and the lock, extending transversely to the radial direction and transversely to the direction of rotation, against which a plate can be placed against the radial direction for osteosynthesis of the bone parts.

The present disclosure relates to an apparatus for treating a fracture, comprising a nail which can be introduced into an intramedullary canal of a bone, wherein the nail comprises a bore that is aligned roughly transversely to a longitudinal axis of the nail, wherein a coupling device, is provided which can be introduced into the bore such that the coupling device protrudes past the bore on both sides and can be moved within the bore along a transverse axis in a lateral direction and a medial direction oriented in an opposing manner to the lateral direction, and which coupling device can be fixed in place at an end in a bone part, wherein an adjusting device is provided which can be fixed in place in different positions relative to the nail and wherein the adjusting device comprises a first stop surface that limits a mobility of the coupling device in a lateral direction when the coupling device and adjusting device are arranged on the nail, so that by changing the position of the adjusting device relative to the nail, a lateral end position up to which the coupling device can be moved relative to the nail in a lateral direction can be altered.

The present invention relates to an apparatus (10) for the automated processing of a plurality of poultry parts (11), in particular poultry legs (11), which have a first bone part connected in an articulated manner and a second bone part and also have an intermediate joint arranged between the first bone part and the second bone part, the apparatus comprising a conveying device (12) with a plurality of holding elements (15), and at least one detection unit (27) arranged along the conveying path (13), wherein the at least one detection unit (27) is designed and configured at least to detect and / or determine the position of the first bone part, the second bone part and / or the intermediate joint, wherein the conveying device (12) is designed and configured in such a way that the poultry parts (11) are conveyable along the conveying path (13) at a conveying speed, wherein the holding elements (15) in the region of the at least one detection unit (27) are conveyable at a separate conveying speed, in order to embody and configure a detection and / or determination substantially independent of the conveying speed. The invention further relates to a corresponding method for the processing of poultry parts (11), in particular poultry legs (11).

A processor derives a bone part image of a subject including a bone part based on a first radiation image and a second radiation image acquired by imaging the subject with radiation having different energy distributions, derives a fat percentage distribution or a muscle percentage distribution of the subject based on the first radiation image and the second radiation image, and derives a bone density in a bone region of the subject based on the bone part image, and the fat percentage distribution or the muscle percentage distribution.

The invention provides a spine abrasive drill sleeve with bone wax for assisting hemostasis, which comprises a pipe body for an abrasive drill to extend into, a limiting part for preventing the abrasive drill from polishing nerves below sclerotin is arranged below a first end part, extending into a patient, of the pipe body, and the spine abrasive drill sleeve further comprises a bone wax pipeline for accommodating the bone wax, a connecting piece is arranged between the limiting part and the first end part of the pipe body, a wax outlet is formed in the connecting piece, and the wax outlet is communicated with a bone wax pipeline. When the abrasive drill works, the bone wax can be smeared on the surface of the bone under the rotation of the abrasive drill after being extruded, so that a channel and a bone wax smearing device do not need to be additionally arranged, the bone wax can be smeared on the bone part while the abrasive drill grinds through the abrasive drill sleeve, an overlarge surgical working channel can be avoided, the operation can be simplified, and the working efficiency is improved. Operation of the abrasive drill and the bone wax is achieved on the independent abrasive drill sleeve, multiple doctors do not need to operate in a matched mode, and meanwhile the requirement for the experience level of the doctors is not too high.

A method and a guide system for performing a bone osteotomy. The guide system has a block defining first and second edges each for guiding a cutting component. The block and a cooperating base each is configured to be releasably fixed in an operative position relative to a bone. The block has a connector that cooperates with a connector on the base to guide relative movement of the base and block substantially along a first line. Separation of a bone fragment formed using the guided cutting component produces a gap of a first width between facing surfaces on relatively movable bone parts, with the base and block fixed one each thereto. The block and base are configured so that with the bone fragment separated, the block and base can be guidingly relatively moved to thereby: a) reduce the width of the gap from the first width; b) move the facing surfaces towards each other; and c) place the bone parts in a desired relationship. The bone parts can be fixed to each other in different manners to maintain the desired relationship.

Methods and systems for automatically reconstructing a three-dimensional bone model from MRI data. In a training method, paired MRI and CT scans are prepared; ground-truth bone segmentations are obtained in CT and linked to CT data; the MRI data is fused with the linked CT data separately for each region of interest corresponding to movable bone parts to produce MRI-aligned ground-truth datasets; a neural network is trained to predict bone segmentation from MRI by estimating tentative outputs and backpropagating a loss. A computer-implemented method receives MRI data, computes separate segmentation datasets for at least first and second bone parts with a trained network, and reconstructs a model with the parts represented distinctly. The model may be used for virtual surgical planning and for manufacturing patient-specific implants or surgical guides. Also disclosed are a computer-readable medium storing instructions and a system implementing these functions.

The invention discloses a combined type bone fracture plate for bone trauma, relates to the technical field of bone fracture plate appliances, and provides the following scheme that the combined type bone fracture plate comprises two main bone fracture plate pieces which are arranged up and down, and two auxiliary bone fracture plate pieces are arranged on the left side and the right side of each main bone fracture plate piece; three groups of bone fracture plate binding and collecting mechanisms are arranged between the main bone fracture plate and the auxiliary bone fracture plate; the main bone fracture plate comprises a bone fracture plate body and a bone fracture plate head arranged at the front end of the bone fracture plate body in an integrally formed mode. According to the scheme, the multiple sets of bone fracture plates are combined, the bone fracture plates surround the damaged bone part by a circle, so that the bone is fixed in multiple directions, the multiple sets of bone fracture plates can be freely disassembled or combined through the binding and collecting mechanism, different bone fracture modes can be selected according to the bone fracture degree, and the bone fracture effect is improved. The application range and the freedom degree of the bone fracture plate are increased; the length of the bone fracture plate is adjustable, so that the effect of enlarging or reducing the fixing range according to different bone fracture degrees is achieved.

A method for manufacturing a medical bone connecting device (10) is proposed that serves to connect two bones (V, H) or bone parts of a human or animal patient. The method comprises at least the following steps: a.) targeted deposition (80) in a common layer (17) of one or more strands (13) of reinforcing fibers (11) embedded in a matrix material (12), b.) repetition (81) of step a.) for a plurality of successive layers (17), in order to produce a preform (18) of the bone connecting device (10), and c.) compression (82) of the preform (18) in a mold (70) to form the bone connecting device (10). The strand or strands (13) are deposited in such a way in step a.) that they follow a multiple curved path (15) without crossing themselves or each other. Furthermore, a bone connecting device (10) manufactured according to this method is disclosed.

At least one surgical plaque is provided, which has at least one fixation plaque so as to fix the separated bone parts of the lower and upper jaws in orthognathic surgery. Accordingly, its novelty is to include the following: at least one vertical extension that is connected from one side of said fixation plaque so as to fix the broken parts of 1st mandibula, and at least one carrier element provided to move linearly on said vertical extension so as to provide skeletal anchorage.

A meat separator separates meat part attached to bone part by coming into contact with outer peripheral surface of the bone part of bone-in meat that moves relatively with respect to the meat separator. The meat separator includes a plurality of clamp blocks. The clamp blocks each include scraping contact portion that comes into contact with the outer peripheral surface of the bone part, and the scraping contact portions cooperate with each other so as to clamp the outer peripheral surface of the bone part. At least one of the clamp blocks is configured so that at least a part of the scraping contact portion of the clamp block is displaceable in a plurality of directions along outer surface shape of the bone part, and the at least one of the clamp blocks includes biasing function portion that elastically pushes back the displacement in direction moving away from bone part.

The radiation image analysis device acquires an X-ray image obtained by performing X-ray radiography on a subject including a bone part, acquires a rotation angle from a reference position of the bone part on the basis of the X-ray image, and acquires bone quantity information of the bone part by correcting pre-correction bone quantity information of the bone part obtained by converting a pixel value for each pixel of the X-ray image on the basis of the rotation angle.

A porous structural body 1 made of flexible resin or rubber, the porous structural body includes a skeleton part 2 throughout its entirety. The skeleton part includes a plurality of bone parts 2B and a plurality of coupling parts 2J coupling end parts of the plurality of respective bone parts with each other. The skeleton part has a plurality of annular parts 211 each constituted of the plurality of bone parts and the plurality of coupling parts into an annular shape. Each annular part zones a virtual surface V1 by its inner peripheral side edge part 2111. At least a part of each of one or a plurality of the virtual surfaces is covered with one or a plurality of partially connected films 31. Each of the one or plurality of partially connected films is connected to only a part of the annular part in a peripheral direction.

A human dummy for confirming comfort is provided with: a skeleton section molded from a resin material; a meat part which is formed of a material different from the resin material and surrounds the outer periphery of the skeleton part; and a skin part disposed on the surface side of the meat part, in which the bone part is molded from different resin materials according to the bone site, and has a bone weight of 10-60% of the bone weight of the bone part of the dummy for collision safety performance tests, which has been international standardized on the basis of human body data.

The clamp device for meat with bones comprises a plurality of holding blocks and a displacement limiting part. The gripping blocks have gripping parts capable of coming into contact with the outer peripheral surface of the periphery of the bone part of the boned meat, and are provided so as to be relatively displaceable in the direction in which the gripping parts approach and leave each other. The displacement restricting part restricts the displacement of a plurality of gripping pieces that grip the boned meat in a direction away from each other.

The invention provides an anti-radiation tubular material shielding structure, and belongs to the technical field of optical fiber control, and the structure comprises a skeleton assembly which comprises a plurality of skeleton parts which are arranged at intervals and a traction part which is disposed on the plurality of skeleton parts in a penetrating manner, the traction part is used for driving at least one skeleton part to move, and the plurality of skeleton parts are provided with accommodation areas for arranging optical fibers in a reserved manner; the skeleton assembly is sleeved with the tube body, and the tube body can be bent along with the skeleton assembly; the shielding assembly comprises a plurality of shielding units arranged on the tube body at intervals, the positions of the shielding units correspond to the positions of the skeleton parts one to one, the shielding units are arranged to be cylindrical, the length of the cylindrical shielding units is larger than or equal to the distance between the two adjacent skeleton parts, and gaps are formed between the shielding units and the tube body; and the shielding unit is made of an anti-radiation material. According to the radiation-proof tubular material shielding structure provided by the invention, effective radiation shielding can be realized while multi-degree-of-freedom controllable rotation of the optical fiber can be retained.

A method and device for describing the human body structure relationship based on spatial transformation, belonging to the field of medical information processing. It is set that each rigid component of the human body is represented by a spatial triangular surface formed by three adjacent bone feature points. Typical rigid components include the upper triangular plane of the shoulder, the left and right scapula planes, the thoracic vertebrae, the lumbar vertebrae, the pelvic plane, and the left and right lower limb planes. An independent local coordinate system of its own is established for each rigid component. The local coordinate system of its own of the rigid component pelvic plane is established as the base coordinate system, and the coordinate system where the upper camera is located is the global world coordinate system. The spatial rotation transformation matrix of each rigid component relative to the pelvic base coordinate system is obtained through the coordinate transformation under the local coordinate system of its own of each rigid component and the global world coordinate system. The singular value decomposition method is used to solve the relative spatial rotation transformation matrix, and a mathematical expression for describing the spatial position relationship between the bone parts of the human body with abnormal postures is constructed. The present invention is used to accurately detect the abnormal body postures and structures of the human body.

A method of, and a guide system for, performing a bone osteotomy. The guide system has at least a first edge for guiding a cutting component. A block and a cooperating base each is configured to be releasably fixed in an operative position relative to a bone. The block has a connector that cooperates with a connector on the base to guide relative movement of the base and block substantially along a first line. A gap of a first width is created between facing surfaces on relatively movable bone parts, with the base and block fixed one each thereto. The block and base are configured so that the block and base can be guidingly relatively moved to thereby: a) reduce the width of the gap from the first width; b) move the facing surfaces towards each other; and c) place the bone parts in a desired relationship. The bone parts can be fixed in relationship to each other in different manners to maintain the desired relationship.

Impact plate (10) for fixing a chipped or osteotomized bone fragment, which is designed in an insertion direction with a longer, first side (12) and a shorter, second side (14), which is tapered at the impact edge (16) and which has at least two spaced-apart drill holes (19), one of which is formed in the area of ​​the first side (12) and one in the area of ​​the second side (14), wherein the edges lateral to the insertion direction have at least partially serrations (22), wherein a guide pin (24) is provided at the proximal end of the impact plate, which is designed for positioning in an impact aid (30).

The invention discloses a control method of a skeletal surgery navigation and positioning system, and belongs to the technical field of electronic control, a skeletal image of a patient is shot, the image is transmitted to a computer, a proper prosthesis model is selected in the computer and placed on a lesion skeletal for matching, and the coincident part of the prosthesis model and the skeletal is the part needing to be cut and replaced. A sensor A and a magnetic field generator are installed, a bone image of the patient is shot again, the shooting range comprises the sensor A and a lesion bone part, a coordinate system is established in a computer with the sensor A as an original point, and the computer calculates an interface and coordinates of a prosthesis model and a bone overlapping part; a cutting tool, a grabbing tool and other tools are arranged at the front end of the mechanical arm, and a sensor B is installed at the front end of the mechanical arm. The surgical robot receives coordinates of the interface and commands the mechanical arm to conduct operations such as osteotomy resection, bone prosthesis placement or surgical channel opening in combination with position information fed back by the sensor B.

The invention provides orthopedic surgery registration equipment and device and a surgical robot system.The orthopedic surgery registration equipment comprises a processor, the processor is used for executing the following steps that an initial bone three-dimensional model is obtained, and the initial bone three-dimensional model is a three-dimensional model of a preset target bone part; acquiring position information of a plurality of points on the bone surface of the target bone part of the target object; and adjusting the initial bone three-dimensional model by using the position information of a plurality of points on the bone surface of the target bone part of the target object to obtain a target bone three-dimensional model corresponding to the target bone part of the target object. CT scanning does not need to be carried out on the patient in the whole registration process, so that radiation brought to the patient due to bone registration can be avoided; the target bone three-dimensional model is obtained by adjusting the preset initial bone three-dimensional model, reconstruction of the three-dimensional model in the bone registration process is avoided, the method is simple and convenient, the operation process is short, and then the time needed by bone registration is shortened.

The porous structure (1) is made of a flexible resin or rubber, wherein the porous structure has a skeleton part (2) throughout its entire range, the skeleton part includes a plurality of bone parts (2B) and a plurality of connecting parts (2J) that respectively connect the ends of the plurality of bone parts to each other, the skeleton part has a plurality of annular parts (211) each formed into an annular shape by a plurality of bone parts and a plurality of connecting parts, each annular part is divided into an imaginary surface (V1) by its inner peripheral side edge (2111), at least a portion of each of the one or more imaginary surfaces is covered by one or more local connecting membranes (31), and the one or more local connecting membranes are respectively only connected to a part of the circumference of the annular part.