134 results about "Metatarsal bone part" patented technology

Systems, devices, and techniques can be used to perform an osteotomy on a bone of a foot, to realign a cut bone portion relative to an adjacent bone portion, and / or to fixate a moved position of the cut bone portion relative to the adjacent bone portion for fusion. In some examples, the disclosed devices and techniques can be used as part of a metatarsal correction procedure in which a metatarsal is treated to correct a bunion deformity.

In some embodiments, a method comprises disposing a portion of a flexible fastening band into contact with a first bone portion and into contact with a second bone portion. The portion of the flexible fastening band having a substantially uniform shape configured to substantially compliment a shape of the first bone portion and a shape of the second bone portion. The method further includes inserting the portion of the flexible fastening band into a fastener and advancing the portion of the flexible fastening band through the fastener until the first bone portion and the and the second bone portion are stabilized.

An alignment device includes a first member, a second member, and a guide. The first member has an elongated body and is configured to be at least partially inserted into a canal in a first bone portion. The second member includes a body attachable to the first member and an arm extending from the body. The arm defines a track. The guide is configured to translate along the track defined by the arm. The guide includes an aperture configured to receive an alignment member therethrough. The guide is configured to be positioned at a desired position along the track to allow insertion of the at least one alignment member through the aperture and into the first bone portion at a desired trajectory.

Disclosed herein is a biocomposite that can be formed from a composition that includes at least one monomer suitable for photopolymerization, a photoinitiator, and a filler composition that includes at least one inorganic compound. The biocomposite can be formed by a process that includes 3D printing. Also disclosed herein are applicability of the composition and biocomposite, including any treatment of bone defects or repair of a portion of bone in a subject.

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.

A method of, and apparatus for, fixing an implant with respect to first and second bone parts at a joint. The method includes the steps of: obtaining a guide structure having a body with a first discrete projecting referencing arm; placing the guide structure in an operative position by directing the first discrete projecting referencing arm through a joint capsule to against a joint surface on the first bone part to establish a referencing location relative to the joint surface; with the guide structure in the operative position, using the guide structure to facilitate alignment of the implant in a desired seated position with respect to the first bone part; and thereafter fixing the implant in the desired seated position.

The invention relates to the technical field of balance systems, in particular to a load and gap balance system in a knee joint replacement operation. Mainly aiming at the problems that a doctor realizes symmetrical gap balance and ligament stress by virtue of a manual technology and subjective evaluation, an unsatisfactory result can be caused, and complications, such as instability, limited movement range and premature wear of an artificial knee joint prosthesis, are possibly caused, the following technical scheme is provided: the artificial knee joint comprises a knee joint, the knee joint comprises a femur and a tibia, and a medial collateral ligament and an lateral collateral ligament are connected between the femur and the tibia; the first osteotomy guider is used for cutting off the thighbone, the thighbone part of the first osteotomy guider is cut off to form a far-end osteotomy plane, and a thighbone prosthesis is installed at the position of the far-end osteotomy plane. According to the invention, the gap can be accurately measured, the ligament can be accurately tensioned, personalized alignment is realized, prosthesis selection is optimized, and the surgical effect of knee joint replacement, the satisfaction degree of a patient and the long-term durability of the prosthesis are effectively improved.

A fixation plate for securing together adjacent first and second bone sections of a bone with a bone cut extending thereinbetween, the fixation plate comprising: a first fixation portion having a bone interface side superposable against the first bone section and a second fixation portion extending away from the first fixation portion, the second fixation portion including a holding portion shaped to conform to an outer surface of the second bone section when superposed thereto and when the first and second bone sections are at a predetermined angular orientation relative to each other such that a snug fit of the second bone section with the holding portion provides an indication that the first and second bone sections are at the predetermined angular orientation relative to each other.

Systems, devices, and techniques can be used to perform an osteotomy on a bone of a foot, to realign a cut bone portion relative to an adjacent bone portion, and / or to fixate a moved position of the cut bone portion relative to the adjacent bone portion for fusion. In some examples, the disclosed devices and techniques can be used as part of a metatarsal correction procedure in which a metatarsal is treated to correct a bunion deformity.

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).

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.

A compression bone screw for compressing adjacent bone portions together, comprising: a head portion (104) comprised of a superior end (120) and an inferior end (124); a shank (108) extending distally from the inferior end to a distal end (116); and proximal threads (136) and distal threads (140) disposed along the shank, the proximal threads comprised of a first thread pitch and the distal threads comprised of a second thread pitch, such that the shank comprises a differential pitch.

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.

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).

The disclosure provides apparatus and methods of use pertaining to syndesmosis reinforcement. Embodiments include a clamp having two jaws that extend toward each other to clamp two bone portions therebetween. The clamp may include an angle gauge and an adjustment mechanism having a force gauge that combine to enable the compression of the two bone portions in an optimal direction or angle and at an optimal, measurable compression force. Embodiments also include a tension instrument configured to knotlessly lock a flexible strand construct between two anchors at the same optimal direction and tension applied by the clamp. Further embodiments include an exemplary syndesmosis reinforcement procedure that employs the clamp and the tension instrument to construct a ligament reinforcement construct that achieves optimal anatomic positioning in both directional alignment and the reduction force applied by the construct. Other embodiments are 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.

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.

Disclosed herein are stretching and compressing devices configured to be positioned between a first portion of bone and a second portion of bone, and which are scalable to a small implant size. In various embodiments, the device includes a stretching shaft having an internal cavity disposed therein and configured to be fixed to the first portion of bone, and a housing configured to be fixed to the second portion of bone, wherein the stretching shaft is configured to be axially movable relative to the housing and a portion of the housing is disposed therein. A drive element is disposed within the housing and configured to rotatably drive a gear assembly, and a lead screw assembly is disposed at least a portion of the internal cavity of the stretching shaft, and the lead screw assembly is configured to rotatably advance and / or retract a lead screw within the internal cavity and to be rotatably driven by a cycloidal gear assembly.

Systems, devices, and techniques can be used to perform an osteotomy on a bone of a foot, to realign a cut bone portion relative to an adjacent bone portion, and / or to fixate a moved position of the cut bone portion relative to the adjacent bone portion for fusion. In some examples, the disclosed devices and techniques can be used as part of a metatarsal correction procedure in which a metatarsal is treated to correct a bunion deformity.

Method and apparatus are provided for assisting with bone fracture detection. In particular, image data of a medical image is received in a processing unit from a device, which may be an imaging device, a data detection device or an image storage device. A bone structure is identified in the medical image. A fracture line in the identified bone structure is determined. A bone feature, which may include a portion of an outline of the identified bone structure, a point of the fracture line on an outline of the identified bone structure, a relative displacement of bone parts of the identified bone structure, or a combination thereof is detected. The bone feature may be classified and a corresponding output generated.

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.

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.

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.

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.

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).