94 results about "Metatarsal bone part" patented technology

The invention is directed to a composite bone graft for implantation in a patient, and methods of making and using the composite bone graft, along with methods for treating patients by implanting the composite bone graft at a site in a patient. The composite bone graft includes two or more connected, discrete, bone portions, and includes one or more biocompatible connectors which hold together the discrete bone portions to form the composite bone graft. The composite bone graft may include one or more textured bone surfaces. The textured surface preferably includes a plurality of closely spaced protrusions, preferably closely spaced continuous protrusions. The composite bone graft is useful for repairing bone defects caused by congenital anomaly, disease, or trauma, in a patient, for example, for restoring vertical support of the anterior and / or posterior column. Implantation of the composite bone graft results in improved graft stability and osteoinductivity, without a decrease in mechanical strength. The composite bone graft does not shift, extrude or rotate, after implantation. The present composite bone graft can be appropriately sized for any application and can be used to replace traditional non-bone prosthetic implants.

The disclosed technology relates to robotic surgical systems for improving surgical procedures. In certain embodiments, the disclosed technology relates to robotic surgical systems for use in osteotomy procedures in which bone is cut to shorten, lengthen, or change alignment of a bone structure. The osteotome, an instrument for removing parts of the vertabra, is guided by the surgical instrument guide which is held by the robot. In certain embodiments, the robot moves only in the “locked” plane (one of the two which create the wedge—i.e., the portion of the bone resected during the osteotomy). In certain embodiments, the robot shall prevent the osteotome (or other surgical instrument) from getting too deep / beyond the tip of the wedge. In certain embodiments, the robotic surgical system is integrated with neuromonitoring to prevent damage to the nervous system.

An intramedullary lengthening device includes a housing and a distraction shaft. The intramedullary lengthening device is placed within a cavity of two bone sections (either already separated or purposely separated for insertion of the device). The distraction shaft of the intramedullary lengthening device is attached to the one of the bone sections using, for example, one or more attachment screws. The housing of the intramedullary lengthening device is attached to the second bone section using, for instance, one or more attachment screws. Over the treatment period, the bone is continually distracted, creating a new separation into which osteogenesis can occur. In one embodiment, the intramedullary lengthening device includes an actuator and an extension rod, which can be attached to one other.

Attachment element for a prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity. The prosthesis comprises a first articulation element associated with the top of the humerus, and a second articulation element associated with the glenoid cavity. The attachment element comprises a first part for removable anchorage to the first or second articulation element, and a second part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of the first and second articulation element.

The invention is an articulation section for an endoscope (10). The articulation section (50) is characterized in that each one of its vertebrae (52) is comprised of several pieces that can be easily assembled or disassembled. This arrangement allows the replacement of individual ones of the vertebrae and / or the replacement of individual ones of the wires, cables, fibers, and tubes that pass through the vertebrae section without having to disassemble and reassemble the entire articulation section.

The invention is an articulation section for an endoscope (10). The articulation section (50) is characterized in that each one of its vertebrae (52) is comprised of several pieces that can be easily assembled or disassembled. This arrangement allows the replacement of individual ones of the vertebrae and / or the replacement of individual ones of the wires, cables, fibers, and tubes that pass through the vertebrae section without having to disassemble and reassemble the entire articulation section.

Attachment element for a prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity. The prosthesis comprises a first articulation element associated with the top of the humerus, and a second articulation element associated with the glenoid cavity. The attachment element comprises a first part for removable anchorage to the first or second articulation element, and a second part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of the first and second articulation element.

A bone screw assembly constructed of allograft bone comprising a screw shank with a uniform diameter threaded portion, an unthreaded portion with a outwardly tapered end terminating in a drive head defining a wedge shaped configuration to form an undercut for the drive head. In operation a bore is drilled in the two bone sections, with one bone section being over drilled with the top portion of the over drilled bore having a tapered geometry which widens from the diameter of the bore. The bone screw is driven into the previously cut bore in the bone sections until the tapered surface of the bore engages the tapered undercut surface of the screw.

The various embodiments of the present invention provide a system, including methods, apparatus and kits for connecting bones and / or bone portions using a multi-part bone connector with one or more rotating joints.

An external fixing device for the treatment of bone fractures includes a first member, a second member, a central body arranged between the first member and the second member, a first ball joint for the articulated connection of the first member with the central body, a second ball joint for the articulated connection of the second member with the central body, locking means operatively associated to the first ball joint and with the second ball joint, respectively, the locking means being suitable for allowing / preventing the articulation of the first member and second member with respect to the central body, wherein the first member includes a first clamp, the second member includes a second clamp and the central body includes a third clamp for connection of the external fixing device to respective fractured bone portions to be treated.

A collapsible bone screw for healing bone fragments across a bone fracture includes an externally threaded inner screw member and an externally threaded outer screw member. The inner screw member is initially screwed into an inner bone portion. An unthreaded portion of the outer screw member is movably joined to the inner screw member. The outer screw member is screwed until it gains purchase in an outer bone portion. As impaction occurs over time, the collapsible bone screw apparatus may shorten in length as the two screw members slide, telescope or otherwise axially move toward each other to shorten the overall length, thereby preventing any portion of the screw apparatus from protruding out of the bone. A bone screw kit of multiple inner and outer screw members are provided as well as a method of surgically fastening bone fragments.

In order to improve a bone screw with a shaft defining a longitudinal axis and with a head which can be brought into engagement with a bone screw receiving means of a bone plate for the releasable connection of the bone screw to the bone plate, wherein a securing element for securing a connection between the bone screw and the bone plate is provided, wherein the bone screw can be brought from a position of engagement, in which the bone screw is held on the bone plate, into a release position, in which the bone screw can be released from the bone plate, wherein the securing element can be brought from a non-securing position, in which the bone screw can be brought into the release position, into a securing position for securing the connection between the bone screw and the bone plate, in which the bone screw takes up the position of engagement, such that a bone plate can be fixed to bone parts more easily and more securely it is suggested that the securing element be supported on the bone screw so as to be movable.

An improved guide system and method permits a user to insert a fixation device, such as a pin, screw, wire and / or the like, into a bone portion. A guide system may comprise a handle portion and a body portion, wherein the body portion comprises one or more channels configured to facilitate placement and insertion of a fixation device.

A method for performing an open wedge osteotomy, the method comprising:forming a cut in a bone;manipulating the portions of the bone adjacent to the cut so as to open the cut into a wedge-like opening;providing an osteotomy implant, wherein the osteotomy implant comprises:an elongated body characterized by a distal end and proximal end, the elongated body having a screw thread thereon;positioning at least the distal end of the elongated body into the wedge-like opening so that the screw thread engages the surrounding bone; andthreadingly advancing the elongated body into the wedge-like opening until the portions of the bone assume the desired positioning, with the elongated body stabilizing the bone portions in this position.

The present invention provides a sole structure of footwear which makes it possible for a user to walk in a special position such that a toe part is in a raised state, thus providing an exercise effect, and is constructed such that the inclination of the footwear can be smoothly changed forwards and backwards based on a metatarsal bone part, so that the user can naturally conduct exercise. To achieve the above purposes, the present invention comprises a main sole, which has an outline that approximately corresponds to an outline of a foot sole, a front cushion sole, which is coupled to a portion of the main sole which is ahead of the metatarsal bone part, and a rear cushion sole, which is coupled to a portion of the main sole which is behind of the metatarsal bone part.

A laminoplasty rod and rod system that allows for variable angulation, translation (distraction and / or compression) and rotation of a spinal lamina bone portion associated with a laminoplasty, prior to fixation thereof. The laminoplasty rod is configured for use with a polyaxial spinal rod bone screw assembly that is adapted to be anchored to the vertebra associated with the laminoplasty, and is attachable to the spinal lamina bone portion. The laminoplasty rod system provides positional attachment of the laminoplasty rod to the spinal components associated with the laminoplasty and fixation thereof in various orientations. The laminoplasty rod system is characterized by a configured laminoplasty rod that fits into or onto the head of a polyaxial spinal rod bone screw assembly. A bone screw boss, defining a bone screw attachment configuration, is formed at one end of the laminoplasty rod. Preferably, but not necessarily, the bone screw boss is situated at an angled end of the rod having a pre-defined bend that provides for greater variation in rod orientation.

Protective devices, to protect a body part having a bony portion with a soft tissue layer between the bony portion and an outer skin layer, have an inner surface which conforms to the body part to be protected and are applied to the body part to reduce pressure exhibited at the interface between the bony portion and the soft tissue layer, across the soft tissue and outer skin layers and at the interface between the outer skin layer and a support surface. The protective devices may be made of any material suitable for distributing the weight of the body part over an extended area and volume and may include a mushy material, a hard shell, a hydro absorptive material, and a wound dressing with medication. The body part to be protected includes at least one of the heel, trochanter, knee, sacrum, coccyx, ischium, scapula, elbow, ankle, buttocks and occiput; The protective devices may be secured to the body part directly or via a garment or any other suitable securing means.

Repairs of cartilage defects or of cartilage / bone defects in human or animal joints with the help of devices including a bone part (1), a cartilage layer (2) and a subchondral bone plate (4) or an imitation of such a plate in the transition region between the cartilage layer (2) and the bone part (1). After implantation, the bone part (4) is resorbed and is replaced by reparative tissue only after being essentially totally resorbed. In a critical phase of the healing process, a mechanically inferior cyst is located in the place of the implanted bone part (1). In order to prevent the cartilage layer (2) from sinking into the cyst space during this critical phase of the healing process the device has a top part (11). and a bottom part (12), wherein the top part (11) consists essentially of the cartilage layer (2) and the subchondral bone plate (4) and the bottom part (12) corresponds essentially to the bone part (1) and wherein the top part (11) parallel to the subchondral bone plate (4) has a larger diameter than the bottom part (12). After implantation in a suitable opening or bore (20), the cartilage layer (2) and the subchondral bone plate (4) are supported not only on the bone part (1) but also on native bone tissue having a loading capacity not changing during the healing process. Therefore, the implanted cartilage layer cannot sink during the healing process.

One describes a radiographic film positioning device, particularly de-signed for use in dentistry, provided with a first assembly for positioning at least one radiographic film that comprises at least one association means for association with a radiographic support, positionable substantially perpendicular to a bone portion of the patient.

A bone-fastening system includes an implant with a threaded screw, a distal nut with a threaded bore, and a proximal washer which may also be threaded. An instrument for implanting the implant includes a handle and a barrel terminating in a holder for the washer. A c-shaped bridge assembly has a first end connected to the barrel and a second end including a holder for the nut in axial alignment with the washer. A manually operated control on the instrument, coupled to an elongated element in the barrel, causes the washer to move toward the nut, thereby applying compressive pressure to bone portions to be fastened together. A drive mechanism disposed within the barrel has a distal end with a holder for the screw and a proximal end that is turned by a user, thereby advancing the screw through the washer to the nut to fasten the bone portions under compression. The manually operated control is preferably a trigger that is squeezed toward the handle by a user. A separate control, also preferably in the form of a trigger, is used to release pressure on the elongated element in the barrel, enabling the implant to be easily removed from the implant once in position.

The combination of a plate and inserter for the plate. The plate is configured to be operatively placed at a bone fracture site and secured with at least one fastener to stabilize bone portions between which a fracture is located. Structure cooperating between the plate and inserter is configured to releasably maintain the plate operatively engaged with the inserter. The operatively engaged plate is movable together with the inserter whereby a user can manipulate the operatively engaged plate through the inserter. The plate has a leading end with a tapered configuration to facilitate dissection of soft tissue from a bone surface to allow a surface on the plate that trails the advancing leading end to be operatively placed against the bone surface across the bone fracture site.

The invention discloses a manufacturing method of a biteplate for treating temporal-mandibular joint disc displacement by 3D printing. The manufacturing method comprises the following steps: (1) mandible condyle process positions of patients are recorded and fixed; (2) craniomaxillofacial surfaces of the patients are shot to obtain conical beam CT data of the patients; (3) upper and lower jawboneparts of the patients are rebuilt; and the head positions of the patients are adjusted according to frankfort planes of the patients; (4) bone tissue CT values, teeth and occlusalf surface areas are selected from three-dimensional drawing software for three-dimensional rebuilding of occulsalf surface data of the patients; (5) occulsalf surface three-dimensional models of the patients are rebuilt in the three-dimensional drawing software; (6) interference parts of the occulsalf surface three-dimensional models are removed; (7) the occulsalf surface three-dimensional models are guided into 3D printer mated software; (8) upper jaw parts and lower jaw parts of occlusal pads are designed; and (9) a 3D printer is used for printing to finish manufacturing of the occlusal pads. Through projectionsformed on the inner side of the biteplate, lower teeth cannot retreat due to stop by lower jaw projections of the biteplate, so that the lower jaws of the patients are maintained in a protraction state to treat the temporal-mandibular joint disc recoverable forward displacement.

A bone displacement system includes a body having a first arm and a second arm. The first arm is coupled to a first bone contacting leg configured to be connected to a first bone portion. The second arm is coupled to a second bone contacting leg configured to be connected to a second bone portion. A force application fixture is coupled to the first arm and the first bone contacting leg and configured to apply a force between the first arm and the first bone contacting leg.

This invention is directed to an assembled implant comprising two or more portions of bone that are held together in appropriate juxtaposition with one or more biocompatible pins to form a graft unit. Preferably, the pins are cortical bone pins. Typically, the cortical pins are press-fitted into appropriately sized holes in the bone portions to achieve an interference fit. The bone portions are allograft or xenograft.

Protective devices, to protect a body part having a bony portion with a soft tissue layer between the bony portion and an outer skin layer, have an inner surface which conforms to the body part to be protected and are applied to the body part to reduce pressure exhibited at the interface between the bony portion and the soft tissue layer, across the soft tissue and outer skin layers and at the interface between the outer skin layer and a support surface. The protective devices may be made of any material suitable for distributing the weight of the body part over an extended area and volume and may include a mushy material, a hard shell, a hydro absorptive material, and a wound dressing with medication. The body-part to be protected includes at least one of the heel, trochanter, knee, sacrum, coccyx, ischium, scapula, elbow, ankle, buttocks and occiput; The protective devices may be secured to the body part directly or via a garment or any other suitable securing means.

A bone manipulator system incorporates a bone manipulator and bone plate that enables two degrees of motion to position a fractured bone, including axial and lateral translation of a bone portion. The bone manipulator system incorporates a bone plate having a plurality of apertures and a bone manipulator having a fastener-arm and a foot-arm for engagement with the bone plate. The fastener coupler of the fastener-arm is configured for rotational engagement with a fastener inserted through one of the apertures of the bone plate and secured into the bone thereunder. The foot-arm has a flared foot end for engagement with a separate aperture of the bone plate. The fractured bone is manipulated by movement of the bone plate by the flared foot end while the bone plate slides and / or rotates about the fastener in the slotted aperture.

The present disclosure relates to a prefabricated dinosaur model comprising a skeleton frame which includes a head bone part, a neck bone part, a trunk bone part, a tail bone part, and a leg bone part and forms a skeleton corresponding to an external shape of the dinosaur when assembled; a joint connection part provided at a connection part of the skeleton frame to enable movement of the skeleton frame; and an outer skin which includes an outer skin of the head, an outer skin of the neck, an outer skin of the trunk, an outer skin of the tail, and an outer skin of the leg individually corresponding to the skeleton frame, and directly coupled to corresponding parts of the skeleton frame individually in a detachable manner.

The present invention discloses a securing device that is used to secure a fixation device to two bone portions to promote healing between the two bone portions. The bone portions commonly include a skull bone portion and a skull bone flap or implant, and the fixation device is commonly a cranial clamp. The securing device provides for securing the fixation device in a uniform, single movement asopposed to currently available products. The securing device has two handles pivotably connected, and a gripping means moveably associated with one handle. As the handles are activated, the gripping means travels proximally along the one handle and grips an elongated section of the fixation device and exerts a tensioning force along the shaft of the elongated section prior to the cutting means cutting the elongated shaft to secure the fixation device in place.