81 results about "Bone splinters" patented technology

A system, includes a first screw mechanism including: a first block; a first screw threaded through the first block and including a first skin-interfacing portion; and an intramedullary (IM) member extending from and attached to the first block and including an end portion configured to be inserted into an intramedullary canal of a first bone fragment, wherein a first lateral force is generated between the first skin-interfacing portion against a second bone fragment, adjacent to the first bone fragment, and a holding force provided by the end portion when the first screw is rotated and the end portion is located in the intramedullary canal.

A surgical tool and related methods are provided for removal of a bone sliver from a resected joint. The tool can include a housing including an upper end, a lower end, and a channel extending from the upper end to the lower end. A paddle member extends from the lower end of the housing. The paddle member includes a paddle shaft and a paddle head. The surgical tool further includes an insertion member that has a handle end, an extension that extends from the handle end, and a cutting tip. The extension is translatable within the channel such that the handle end and the cutting tip can move relative to the housing between a retracted position and an advanced position.

The present disclosure relates to the field of medical image processing and, more in particular, to a method for determining an anatomical fracture reconstruction based on one or more medical images of a broken bone, and a system configured for the same. According to an aspect the method comprises the steps of: receiving medical image data associated with the broken bone, identifying the plurality of bone fragments in the medical image data, generating a plurality of 3D surface models that virtually represent the bone fragments; registering a plurality of landmarks matching the surface models; generating a reconstructed model representing a reconstructed form of the broken bone by selecting at least two landmarks; generating a template model representing an optimal alignment of the surface models; repositioning the surface models to align at the selected landmarks set using the template model as reference; iteratively refining the reconstructed model by selecting different landmarks; changing the position of the surface models to align at the different landmarks; evaluating a quality measure that quantifies how changing the position affects the quality of the reconstructed model until a stopping condition is satisfied; and determining an anatomical reconstruction of the broken bone by comparing the position of the identified bone fragments in the medical image data with the position of the corresponding surface models in the reconstructed model.

A device and system for inserting and impacting bone dowel allografts or bone chips into a bone tunnel. The surgical impacting system includes a surgical tamp having a proximal end and a distal end with an elongated shaft extending therebetween. The surgical tamp has an inner channel extending therethrough from the proximal end to the distal end. The distal end of the surgical tamp can have a distal tip. The surgical tamp may have a handle at the proximal end or a proximal tip at the proximal end. The surgical tamp may also have one or more slots extending through the exterior surface of the elongated shaft and into the inner channel. The surgical tamp can be configured for insertion into a delivery tube. The delivery tube serves the purpose of containing a bone dowel or bone chips therein for smooth insertion into the joint.

An orthopedic surgical guide for a surgical operation to fuse two bone fragments, wherein the guide includes:—a frame configured to be removably attached to at least one of the two bone fragments,—a cutting window

Device for the osteosynthetic treatment of bone fractures, in particular patella fractures, with a plate (1) which has a plurality of star-shaped cavities (4), each extending in the radial direction of the plate (1) from an open end (5) on the radially outer edge of the plate (1) to an opposite end which is closer to the center (6) of the plate (1) than the open end, and a plurality of arms (18, 19, 20, 21), each having two legs (22, 24, 25, 26, 27) arranged at an angle to one another, wherein the arms (18, 19, 20, 21) are radially continuously movable relative to the plate (1) after the one leg (22) has been received in the cavities (4) and can be releasably held in place in their respective position on the plate (1) by means of fastening means, characterized in that the arms (18, 19, 20, 21) are each individually detachably connectable to the plate (1) and independently movable relative to the plate (1), the arms (18, 19, 20,21) and the plate (1) each have at least one through-opening (13, 14, 16), and the fastening means have a plurality of screws (15, 17, 31) by means of which each arm (18, 19, 20, 21) can be detachably connected to the plate (1) and to at least one bone fragment, or the plate (1) can be detachably connected to at least one bone fragment.

A joint of an external retaining device for fragments of a bone (external fixator) with circular ribs and grooves having a V-shaped cross-section, the flanks of which form frustum-shaped friction surfaces, which enable a high friction force to prevent rotation of the joint, and thereby prevent inadvertent displacement of the retaining device, and enable adjustment of the retaining device using an adjustable friction force for aligning the fragments of the bone.

A method for controlled delivery of fluids to the exterior of bone and surrounding tissue of a patient includes providing a cannulated bone rod. The method further includes creating an aperture in the skin of a patient and fixating the rod along bones or bone fragments using a spinal fixation system through the aperture. A spinal fixation system includes a bone screw having a longitudinal access and a bone rod configured to connect the bone screw to at least one additional bone screw. The bone rod is lateral to the longitudinal axis. The method further includes the steps of providing a fluid source, coupling the fluid source to the bone rod, and delivering a fluid from the fluid source into the bone rod. An additional method includes using the fixation system as a point of drainage for the posterolateral fusion site.

To provide a device, a system, and a method for a preoperative plan and an intraoperative guidance for orthopedic surgery of a fractured joint suffering bone fragmentation.SOLUTION: A surgery system can be configured to acquire image data of a joint including at least a portion of humerus, segment the image data to determine a shape of a diaphysis of the humerus, determine a shape of the humerus before it becomes the estimated pathosis on the basis of the determined shape of the diaphysis, identify one or more bone chips in the image data on the basis of the estimated shape of the humerus, and generate an output on the basis of the bone chips identified in the image data.SELECTED DRAWING: Figure 35

A device and system for inserting and impacting bone dowel allografts or bone chips into a bone tunnel. The surgical impacting system includes a surgical tamp having a proximal end and a distal end with an elongated shaft extending therebetween. The surgical tamp has an inner channel extending therethrough from the proximal end to the distal end. The distal end of the surgical tamp can have a distal tip. The surgical tamp may have a handle at the proximal end or a proximal tip at the proximal end. The surgical tamp may also have one or more slots extending through the exterior surface of the elongated shaft and into the inner channel. The surgical tamp can be configured for insertion into a delivery tube. The delivery tube serves the purpose of containing a bone dowel or bone chips therein for smooth insertion into the joint.

The invention relates to a resorptive intramedullary implant between two bones or two bone fragments. The implant includes a single-piece body (1) having a generally elongate shape and having, at each end, areas for anchoring to the bone portions in question, characterized in that one of said areas (A1) has a cylindrical cross-section while the other area (A2) has a flat cross-section.

A medical device can include a first anchor for attachment to a first bone fragment and a second anchor for attachment to a second bone fragment. The second anchor attachment can be coupled to the first anchor via a compression element between the first anchor and the second anchor. The medical device can include a resorbable element maintaining the first anchor and the second anchor at a first distance. The resorbable element can be configured to at least partially resorb after insertion into a patient. After the resorbable element is at least partially sorbed, the compression element forces the first anchor and / or the second anchor to translate such that the first anchor and the second anchor are at a second distance, thereby compressing the first bone fragment and the second bone fragment.

The utility model relates to a skull craniotomy operation negative pressure suction device, including the flexible cover made of transparent material, the flexible cover one end big, one end small arrangement and small scale end cover set in one end of milling cutter, the cutter head of milling cutter is located in the chamber of flexible cover, flushes the head and is along the cover mouth circumference direction interval arrangement many groups of flexible cover, flushes the head with the liquid guide export of flush equipment and passes through the pipeline intercommunication, one end of suction pipe stretches into the chamber of flexible cover, the other end of suction pipe and the suction mouth of negative pressure suction device are connected through the pipeline, adopts transparent flexible cover to form the physical barrier, will the milling cutter head completely wrap up in the chamber, breaks out the bone splinter to the surrounding environment, and the flush head of circumference even distribution sprays physiological saline to the center, forms the spiral water flow in the chamber, can ensure the light transmittance of flexible cover, can clearly milling cutter head and the contact state of bone window, cooperation suction operation of suction pipe, can suck out the bone splinter that splashes out of flexible cover, and further can effectively prevent the bone splinter splashing problem.

An osteosynthesis plate (P) for fixing bone fragments incudes an elongate main body (G) with a top side (G1) and an underside (G2) opposite the top side (G1). The underside (G2) is provided for placing the osteosynthesis plate (P) on the bone fragments. The osteosynthesis plate (P) includes multiple openings (A) for accommodating one screw (SK) each. An annular insert (R) formed in one piece is arranged in at least one of the openings (A). The insert (R) includes a first and a second portion (R1, R2). The first portion (R1) faces the top side (G1) and is arranged directly adjacent to the second portion (R2) in the axial direction. The first portion (R1) has a non-rotationally symmetrical outer contour (AD1) and the second portion (R2) has a rotationally symmetrical outer contour (AD2).

A bone reduction and fixation device (1, 70) comprises an elongated biplanar plate along most of its length having an L-shaped profile defined by a first plate surface (3A, 4A) and one or more second plates (3B, 4B), in which the first and second plates comprise a plurality of countersunk holes (8) configured for receipt of bone-fixing screws (10). The biplanar plate comprises two biplanar L-shaped end sections (3, 4) defined by end parts of the first plate and second end plates, and a monoplanar central section (2) defined by a central part of the first plate, in which the central part of the first plate has a thickness greater than the end parts. The L-shaped end sections help guide bone fragments into correct alignment and hold the alignment while the surgeon adjusts one of or both of the fragments laterally and medially to reduce the fragments. The L-shaped profile of the plate also provides for greater bending and torsional stiffness, allowing the plate to have a reduced thickness.

A hook plate guide and method of use to facilitate engagement of a hook plate to a fracture fixation plate and to at least one bone fragment in a fractured bone; the guide comprising a proximal end, a distal end having a head, and a substantially elongated rigid body with a slot adapted to receive a hook plate guide fastener and adapted to slidably secure the hook plate guide to the fracture fixation plate; the head extending outward and having at least one reference hole and at least one drill hole adapted to be positioned over the at least one bone fragment; each at least one drill hole adjacent to a respective at least one reference hole.

Systems and methods for improved cranio-maxillo-facial distraction are provided. The disclosed subject matter can include a distraction device adapted for subcutaneous implantation in a patient, and a handheld device operationally coupled to the distraction device. The distraction device can include a distraction element, adapted to attach to opposing bony fragments of a bone and perform distraction osteogenesis on the bone, and a rotatable magnetic element, coupled to the distraction element such that rotation of the magnetic element controls the distraction element. The handheld device can include a magnetic element, operationally coupled to and magnetically aligned with the magnetic element of the distraction device, such that rotation of the magnetic element of the handheld device causes corresponding rotation of the magnetic element of the distraction device. The disclosed subject matter also provides techniques for implanting a distraction device to opposing bony fragments of a bone and using such a device.

Devices and methods for generating distraction between two or more bones to alleviate pressure on nerves are disclosed. A screw for securing a first bone fragment to a second bone fragment, said screw comprising: a proximal threaded region designed to grip bone; a distal threaded region designed to grip bone, wherein said proximal threaded region has a thread pitch greater than said distal threaded region.

The present invention concerns a method for obtaining an implantable plate for healing a fractured joint of a patient, comprising the steps of: 1) providing a 3D representation of a bone structure in a zone around a joint fracture, the zone comprising essentially all fragments of broken or ruptured bones and at least the ends of unbroken bones which form part of the fractured joint; 2) identifying different bone fragments within said 3D representation; 3) simulating a reduction of said bone fragments into a full joint; 4) calculating optimal parameter values for an implantable plate; 5) obtaining the implantable plate taking into account the calculated parameter values, whereby in step 3, the reduction is simulated by automatedly fitting positions and orientations of said bone fragments to a 3D representation of a healthy joint of said patient.

A screw element for the fixation of bone components and bone fragments is disclosed having a shaft with an outside screw thread and a longitudinal axis extending along the shaft and defining a distal direction and a proximal direction, and an insertion direction and an opposite removal direction, and has a tool attachment point starting radially inwards and the tool attachment point has a central opening and in the wall of this opening at least five tooth profiles directed radially outwards and mainly parallel to the screw axis directed radially outwards and mainly parallel to the screw axis are formed in the wall of this opening, and for each tooth profile an insertion wall in insertion direction and a removal wall in removal direction can be separated, and that the surface of the insertion wall is greater than the surface of the removal wall.

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.

An intramedullary pin (10) for fracture reduction of a fractured bone comprising a first bone fragment (100) and a second bone fragment (102). The intramedullary pin (10) comprising an elongate body (12) for insertion into a medullary canal (108) of the first bone fragment (100) and the second bone fragment (102) through an opening (112) in the first bone fragment (100). The elongate body (12) comprising a proximal end (14) and a distal end (16). The intramedullary pin (10) further comprises a blunt tip (18) at the distal end (16) for abutting against an end (114) of the medullary canal (108) within the second bone fragment (102), and an externally threaded section (20) along at least a portion of the elongate body (12) for engaging the first bone fragment (100).

To address such a problem that in a case of distal clavicle fractures requiring osteosynthesis, even when being fixed using a hook plate or tension band fixation, problems such as rotator cuff tears, restricted range of motion, acromial resorption, or insufficient fixation strength have been observed.SOLUTION: A distal end of a plate stem and a bent part allow for fixation of a distal bone fragment to a proximal bone fragment. When a locking screw is fixed within a bone marrow through a hole in the bent part, complications associated with hooks of conventional hook plates are eliminated and an effect similar to that of a hook plate is achieved. In addition, a tension band fixing method, etc. can be performed through the hole of the bent part. This solves problems such as the rotator cuff tears, restricted range of motion, acromial resorption, or insufficient fixation strength. It can also be applied to fractures other than acromioclavicular joint dislocation and distal clavicle fractures.SELECTED DRAWING: Figure 5

Assemblies and methods for fixation of bone or bone fragments using an orthopedic plate having a slot that causes the bone or bone fragments to compress as a screw is inserted into the slot and rotated therein. By anchoring the orthopedic plate to a first bone or bone fragment and rotating the screw into the second bone or bone fragment at an angle that may be up to approximately fifteen degrees from perpendicular to the top surface of the orthopedic plate, the screw head causes the orthopedic plate to traverse away from the first screw thereby causing the first bone or bone fragment to be drawn toward and / or compress with the second bone or bone fragment.

A method for bone regeneration and surgical planning comprising the following steps: Providing a digital dataset of a 3D image of the bones using digital X-ray, orthopantomography (OPT), computed tomography (CT), digital volume tomography (DVT) and / or magnetic resonance imaging (MRI); Identification of deviations from normal anatomy using 3D imaging; Creation of a real 3D model that corresponds to the 3D scan; Identifying deviations based on the real 3D model for planning a surgical intervention, whereby The real 3D model accurately reproduces the anatomy of the bones, including deviations within a tolerance range of ±0.05 mm. During the planning phase, the arrangement of bones and bone fragments is examined, as well as the accessibility of the bone fragments and whose removability is determined, Free-floating bone fragments that have no connection to the other bones are identified in the 3D scan before the actual 3D model is created, and In the 3D scan, appropriate spacers are incorporated between the free-floating bone fragments and the remaining bones. to hold the free-floating bone fragments.

The invention belongs to the field of surgical traction equipment, and discloses clinical surgical traction equipment for the general surgery department, and the clinical surgical traction equipment is characterized in that a propelling assembly is slidably clamped in a sliding groove, and an elastic assembly is arranged at the upper end of the propelling assembly; when the propelling assembly moves to a scalp and skull adhesion area, the elastic assembly is pressed and contracted, and the bottom of the propelling assembly is kept in contact with the surface of the skull through the elastic assembly; when the propelling assembly moves to the skull sunken area, the elastic assembly restores elastically, and the elastic assembly presses the propelling assembly downwards, so that the bottom of the propelling assembly is attached to the bone surface of the sunken area; meanwhile, the propelling assembly is driven by the second rope to synchronously move in the direction close to the wound, the propelling assembly in linkage with a hook above is arranged below the wound, synchronous mechanical movement of pulling the wound and pushing out bone fragments is achieved through transmission of a pulley mechanism, the risk that the fragments move inwards to cause dura mater scratching is effectively reduced, and the safety of the dura mater is improved. And fragments can be concentrated to a surgical field center, so that quick cleaning is facilitated.

The present invention relates to a high-collagen beef bone broth composition for improving skin beauty and joint health and a method for manufacturing the same. More specifically, the invention relates to a high-collagen beef bone broth composition for improving skin beauty and joint health and a method for manufacturing the same, which provides raw meat for beef bone broth in which collagen and gelatin components are richly extracted through a processing process including steps such as pretreatment, removal of blood, heat treatment, and cooling. Furthermore, the present invention aims to provide a high-collagen beef bone broth composition for improving skin beauty and joint health and a method for manufacturing the same, which can enhance the hygienic safety of the final beef bone broth product (food) and prevent the occurrence of a foreign object sensation upon consumption by minimizing the retention of inedible tissues and foreign substances, such as outer skin, inner skin, membrane tissue, and bone fragments, through pretreatment, cutting, and deboning processes.

The present invention provides a bone fixation plate for fixing bone fragments, and a method for manufacturing such a bone fixation plate. [Solution] A bone fixation plate (P) for fixing a bone fragment, comprising a long body (G) having an upper surface (G1) and a lower surface (G2) opposite to the upper surface (G1), the lower surface being provided for positioning the bone fixation plate on a bone fragment, the bone fixation plate having a plurality of openings for each receiving a screw, an integrally molded annular insert (R) being positioned in at least one of the openings, the insert comprising a first and a second portion, the first portion facing toward the upper surface and positioned directly adjacent to the second portion in the axial direction, the first portion having a non-rotationally symmetric outer contour, and the second portion having a rotationally symmetric outer contour.

A screw includes a screw head having a bevel and an elongate shaft attached to the screw head. The shaft has a central longitudinal axis. A tip is attached to the shaft, distal from the head. A method in implanting the screw into a bone or bone fragment is also disclosed.

The present application relates to the technical field of patient vertebral body image recognition, and particularly relates to a kind of osteoporotic fracture manual reduction auxiliary decision system based on vertebral body image.Threshold segmentation is used to obtain the region to be analyzed.Based on the edge shape and pixel distribution of the region, the boundary flatness is calculated, and the attribution degree of the vertebral body is evaluated by combining the flatness difference and number of adjacent regions, so as to screen the vertebral block region.The bone fragment probability is calculated by analyzing the area and distance from the vertebral block of the non-vertebral block region, and the bone fragment region is screened and classified to the corresponding vertebral body.The osteoporosis possibility is evaluated by comprehensively considering the boundary flatness, bone fragment number and gray distribution in the vertebral body region, and finally the osteoporosis degree of the patient is quantified according to the volume and region number of the vertebral block and fragment in the osteoporosis region, to provide decision support for the manual reduction of vertebral fracture.The present application can accurately identify osteoporotic fracture on the CT image of vertebral body, so that the analysis and judgment of relevant personnel for the patient are more accurate.