39 results about "Metatarsal bone part" patented technology

Examples of the invention relate to methods, implants, including bone plates, and instruments for compressing first and second bone portions or a bone portion and an implant together.

The present invention relates to a surgical spacer device (100) for a joint, comprising a substantially cylindrical or truncated-cone-shaped main body (101), internally hollow and configured for insertion in a distracted joint (1, 2); the main body (101) comprising: a first terminal surface (102) substantially flat and configured to abut onto a first bone portion (1) of the joint (1, 2); a second terminal surface (103) substantially annular and configured to abut onto a second bone surface (2) of the joint (1, 2) opposite the first bone portion (1), the second terminal surface (103) having a first opening (10) for access to the second bone portion (2); at least one lateral element (104) configured for maintaining a three-dimensional spaced structure between the first terminal surface (102) and the second terminal surface (103), the at least one lateral element (104) defining a second opening (20) configured for allowing a lateral access inside the main body (101) and further an access to the second bone portion (2) through the first opening (10).

The closure assembly (100) for securing parts of a severed bone comprises first and second telescopically mated sliding bodies (200, 300) with first and second interconnecting bridge members (210, 310) comprising mutually engageable upward and downward projecting teeth (220, 320). The first bridge member (210) has an interior with a base (240) for receiving the second bridge member (310) with an area having upward projecting teeth (220) and a distal access area (250a) between said area with upward projecting teeth (220) and a distal end (205a) of first bridge member (210). Base (240) also comprises a proximal access area (250b) between said area with upward projecting teeth (220) and a proximal end (205b) of first bridge member (210). First bridge member (210) has a pushing part (255) projecting towards the base (240) for pushing the second bridge member (310) towards the base (240) when inserted in first bridge member (210).

An implant system and method of placing the implant system. The implant system has: an intramedullary part with a stem configured to be directed into a bone / bone part; and a terminal part which in turn cooperates with another mechanical or anatomical part. Connectors on the intramedullary part and terminal part cooperate so that the connectors thereon can be placed in a starting position and thereafter relatively moved within a first path to be engaged. A fixation component is advanced into an opening defined by the intramedullary part and / or terminal part to produce a wedging action that generates forces between cooperating surfaces / parts on the intramedullary part and terminal part applied in directions other than along the line of the first path of the terminal part and the intramedullary part.

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.

A compressor-distractor device may be used during a surgical procedure, such as a surgical procedure to correct a bunion deformity. In some examples, the compressor-distractor includes first and second engagement arms having first and second pin-receiving holes, respectively. The first and second pin-receiving holes may be angled relative to each other. The compressor-distractor may also include an actuator operatively coupled to the first and second engagement arms. In some example uses, a clinician may pin a first surgical device to a patient's bones use a pair of parallel pins. After removing the surgical device over the parallel pins, the clinician may thread the parallel pins through the angled first and second pin-receiving holes of the compressor-distractor, causing the bones to move relative to each other. Thereafter, the clinician may actuate the actuator on the compressor-distractor to move the bones towards and / or away from each other.

A finger joint reduction simulation training device includes forearm, carpal, metacarpal, proximal phalanx, and middle phalanx portions, and at least one biasing element. The carpal portion is attached to a distal end of the forearm portion. The metacarpal portion is connected to the carpal attachment. The proximal phalanx portion has a proximal end that is connected to the metacarpal portion and a distal end opposite to the proximal end. The distal end includes a dislocation guide surface with a depression formed therein. The middle phalanx portion is positioned adjacent the proximal phalanx portion and includes a proximal end with a terminal surface configured to shift relative to the dislocation guide surface and includes a projection configured to extend into the depression of the dislocation guide surface. The biasing element is configured to bias the terminal surface of the middle phalanx portion against the dislocation guide surface.

Devices and techniques for adjusting an alignment for a first metatarsal may include making a plurality of cuts along the length of the first metatarsal. In different applications of the technique, a plurality of transverse cuts may or may not be made intersecting the longitudinal cuts. In either case, the cuts can separate the first metatarsal into two individual portions and release a removable wedge of bone. The different portions of the metatarsal can be moved relative to each other to adjust an anatomical alignment of one portion relative to another portion, for example in multiple planes. After suitably adjusting the alignment of the different bone portions, the portions can be fixed together.

The present application provides an anatomical sternoclavicular joint bone plate and a sternoclavicular joint internal fixation system. The anatomical sternoclavicular joint bone plate comprises a bone plate main body, the bone plate main body comprises a proximal end and a distal end, the proximal end of the bone plate main body is fitted with the clavicular part of the sternoclavicular joint, the proximal end of the bone plate main body is provided with a movable hole, the inner wall of the movable hole is a smooth surface, there is a gap between the inner wall of the movable hole and the screw penetrating therein, the central axis of the movable hole passes through the sternoclavicular joint, and the distal end of the bone plate main body is provided with a plurality of locking holes. The sternoclavicular joint internal fixation system comprises the anatomical sternoclavicular joint bone plate and a cancellous bone screw matched with the movable hole of the bone plate main body. The anatomical sternoclavicular joint bone plate can effectively ensure the stability after sternoclavicular joint dislocation, accelerate the repair and healing of the surrounding ligament, enable the patient to do early exercise, and has the advantages of early recovery of joint function.

The invention relates to an orthosis (1) for wearing on a hand (2) of a person for at least limiting the movement of the carpometacarpal joint (CMCj) of the thumb, preferably also limiting the movement of the metacarpophalangeal joint (MCPj) of the thumb (2-1), the orthosis (1) comprising a metacarpal portion (3) extending across the metacarpal bones of the fingers 2 to 5 and a thumb portion (4) in a curved or ring shape fitting around the thumb (2-1), preferably around the proximal phalanx (6) of the thumb (2-1). The thumb portion (4) is connected to the metacarpal portion (3) via a thumb metacarpal portion (7) extending along and / or around the thumb metacarpal (8) when the orthosis (1) is worn on the hand (2).

The invention relates to cages suitable for being implanted between two bone portions (OS1, OS2). The cage comprises a body (10) arranged so as to come into contact with the two bone portions; a cam (20) having a shaft (21); a blade (30) having a shaft (31), the cam (20) and the blade (30) being arranged so that they are entirely contained in the space (40); means for controlling the movement of the cam (20) and the blade (30) relative to the body (10) so that the cam (20) is able to partially emerge from the interfacial space via one (11-1) of the two bearing faces while the blade (30) remains contained in said space (40) and so that the blade (30) is able to partially emerge from the space (40) via one (11-1) of the two bearing faces. The invention may be used to facilitate the implantation of an intervertebral cage.

The utility model provides a maxillary alveolar bone segment traction device, which is characterized in that two opposite sides on an alveolar fracture are respectively a first side and a second side, and a dental bone corresponding to the first side is provided with an operation osteotomy line which is arranged at an interval with the first side; the maxillary alveolar bone segment traction device forms an osteotomy portion between the surgical osteotomy line and the first side by osteotomy along the surgical osteotomy line, the maxillary alveolar bone segment traction device includes two positioning cast crowns and a movable cast crown. According to the maxillary alveolar bone segment traction device, the positioning cast crowns are arranged on the molars on the two sides respectively, stable supporting is provided for the outer traction assembly and the inner traction assembly through the positioning cast crowns, and further, the outer traction assembly and the inner traction assembly can be matched with the elastic piece to provide arc-shaped guiding matched with a dental arch curve for the movable cast crowns; in addition, by arranging the traction assemblies on the inner side and the outer side of the dental arch, a good traction effect can be achieved.

A compressor-distractor device may be used during a surgical procedure, such as a surgical procedure to correct a bunion deformity. In some examples, the compressor-distractor includes first and second engagement arms having first and second pin-receiving holes, respectively. The first and second pin-receiving holes may be angled relative to each other. The compressor-distractor may also include an actuator operatively coupled to the first and second engagement arms. In some example uses, a clinician may pin a first surgical device to a patient's bones use a pair of parallel pins. After removing the surgical device over the parallel pins, the clinician may thread the parallel pins through the angled first and second pin-receiving holes of the compressor-distractor, causing the bones to move relative to each other. Thereafter, the clinician may actuate the actuator on the compressor-distractor to move the bones towards and / or away from each other.

A surgical tool includes a body defining an opening sized and configured to receive a first bone portion therein, a displacement tip coupled to a first end of the body, the displacement tip sized and configured for insertion into a medullary canal of a second bone portion, and a deployable retention block configured to be transitioned from a first position to a second position. The deployable retention block is configured to maintain the first bone portion in a predetermined position when the deployable retention block is in the second position.

An internal fixator device for epiphyseal block intervention, comprising: a bone plate (20) comprising a pair of retaining elements (21) having respective through-holes (23) and a structural central portion (22); a pair of fixation screws (30), each comprising a respective screw (31) for fixation to the bone portion and a screw head (32) held in the through-hole (23). The central portion (22) is configured to cause bending deformation of the bone plate (20) in epiphyseal block intervention. The screw heads (32) of the set screws (30) remain rotationally constrained with the respective retaining elements (21), and the screws (31) of the set screws (30) are configured to be separated to define an angle. The internal fixture device (10; 10 ') further comprises at least one sensor (40, 40') applied to the central portion (22) and configured to measure the bending deformation, and the sensor (40, 40 ') is further configured to wirelessly transmit data representing the bending deformation so as to calculate the defined angle of the screw (31) of the fixing screw (30).

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.

An implant system and method of placing the implant system. The implant system has: an intramedullary part with a stem configured to be directed into a bone / bone part; and a terminal part which in turn cooperates with another mechanical or anatomical part. Connectors on the intramedullary part and terminal part cooperate so that the connectors thereon can be placed in a starting position and thereafter relatively moved within a first path to be engaged. A fixation component is advanced into an opening defined by the intramedullary part and / or terminal part to produce a wedging action that generates forces between cooperating surfaces / parts on the intramedullary part and terminal part applied in directions other than along the line of the first path of the terminal part and the intramedullary part.

A method for placing an implant in one or more bone portions includes inserting a pinning and drilling instrument a first distance into the bone portion at a location in the bone portion such that a pin portion of the pinning and drilling instrument is inserted into the bone portion at the location; after inserting the pinning and drilling instrument the first distance into the bone portion, further inserting the pinning and drilling instrument a second, further distance into the bone portion at the location in the bone portion such that a drill portion of the pinning and drilling instrument is inserted into the bone portion to create an implant-receiving opening at the location; and placing an implant in the implant-receiving opening.

A processor is configured to acquire two radiation images acquired by imaging a subject including a bone part and a soft part with radiation having different energy distributions, derive a bone part image including a microstructure inside the bone part based on the two radiation images, and derive a likelihood of osteoporosis based on the bone part image or a partial image including a bone of interest in the bone part image.

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 surgical implant includes a tray extending from a first end to a second end along a first plane, the tray including an upper surface and a lower surface, a first post coupled to and extending from the tray away from the first plane and configured to be inserted into a bone portion, the first post including a first opening extending through the first post, a second post coupled to and extending from the tray away from the first plane and configured to be implanted into the bone portion, the second post including a second opening extending through the second post, and a fastener removably coupled to the first post and the second post, the fastener extending from a first fastener end to a second fastener end through the first opening and the second opening.

A method of assessing a joint may include identifying a first bone portion in an image of the joint. The method may further include identifying a cross-sectional area of the first bone portion and identifying a medial ligament in extension value, a lateral ligament in extension value, a medial ligament in flexion value, and a lateral side in flexion value; determining a lateral ligament laxity based on the lateral ligament in extension value; and determining one or more adjustment parameters based on the identified cross-sectional area and the lateral ligament laxity. The determining the adjustment parameters may include a predicted change in soft tissue laxity after the identified first bone portion is removed. The adjustment parameters may include an adjustment to a planned bone resection and / or an adjustment to a planned thickness of an implant. The method may further include outputting the determined adjustment parameters to a display.

A bone attachment assembly is provided for securing an orthopaedic implant to a resected bone portion. The assembly comprises a compress spindle having an interface surface configured to engage the resected end of a bone portion, an anchor plug configured for securement within an intramedullary canal of the bone portion, and a traction member extending between the compress spindle and the anchor plug. The traction member is configured to apply compressive force along a longitudinal axis between the compress spindle and the anchor plug, and is further configured to bend to permit relative movement between the compress spindle and the anchor plug in a direction transverse to the longitudinal axis. This configuration allows the assembly to accommodate non-coaxial alignment between the spindle and the anchor plug while maintaining axial compression.

A bone disunion instrument system may include a first bone pin, a second bone pin, and a guide block. The guide block may include first and second bone pin holes to receive the first and second bone pins, and a window intermediate the first and second bone pin holes. The first bone pin may be anchored in a first bone portion and inserted through the first bone pin hole, and the second bone pin may be anchored in a second bone portion and inserted through the second bone pin hole to impart a compression or distraction force on a bone disunion between the first and second bone portions. The window formed through the guide block may provide access for an implant placed through the window to stabilize the bone disunion while the bone disunion is placed under a compression or distraction force.

A method for modeling patient anatomy includes, generating and segmenting a point cloud of the patient anatomy to identify visible bone surface and soft tissue surface regions of the patient anatomy, registering a reference bone model to the identified visible bone surface regions to provide an initial patient anatomy model having an estimation of a pose of bone portions of the patient anatomy, augmenting the initial patient anatomy model with soft tissue bodies based on the estimation of the pose of the bone portions, where the augmenting provides a full patient anatomy model having (i) the soft tissue bodies representing soft tissue portions of the patient anatomy and (ii) elements representing the bone portions of the patient anatomy, and registering the full patient anatomy model to the segmented point cloud such that the full patient anatomy model accurately reflects a current position and pose of the patient anatomy.

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.

The invention relates to a bone transport system for a bone (4) comprising a first bone portion (4.4), a second bone portion (4.5) and at least a first bone segment (4.1) arranged between both bone portions (4.4, 4.5). The system (100) comprises a hollow carrier (3) configured for being secured to at least one of the bone portions (4.4, 4.5); at least one pulley (6) to be arranged inside the carrier (3); a first tension line (5.1) associated with the pulley (6) and secured to the first bone segment (4.1); and a driving line (7) associated with the pulley (6) and with the tension line (5.1) such that it causes the transport of the bone segment (4.1) when actuated.

A cerclage device configured for fixation of at least one bone portion and / or tissue of a subject's shoulder is disclosed. The cerclage device comprises an elongate member having a medial end and a lateral end. The cerclage device is configured to be irreversibly secured relative to the at least one bone portion and / or tissue when the medial end and / or the lateral end are moved in a fastening direction. The cerclage device may be coupled with a metaphyseal component or humeral prosthesis implanted in the subject's shoulder. A method for cerclage fixation of at least one bone portion and / or tissue of a subject's shoulder using a cerclage device is also disclosed. A cerclage device and method for cerclage fixation of at least one bone portion and / or tissue of a subject's body is also disclosed. The cerclage device may be coupled with a fixation support implanted in the subject's body.

The present invention relates to a medical subassembly (1) for releasable and rotationally stable anchorage within a bone part if the medical subassembly (1) is in use. As a result of an internal construction of an elongated housing member (41) of the medical subassembly (1) and as a result of ways in which an elongated expansion member (2) and an elongated actuator member (33) are arrangeable with respect to each other and with respect to the elongated housing member (41), the medical subassembly (1) has an improved sustainability and an increased application range compared to known medical devices in the field. The invention also relates to a medical assembly (100) that is suitable for fixation of bone parts that are separated by a gap. The medical assembly (100) comprises the medical subassembly (1) according to the invention.