78 results about "Metatarsal bone part" patented technology

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.

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 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.

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).

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.

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.

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.

To provide a bone preparation guide.SOLUTION: In some examples, a method for preparing one or more bones involves inserting a spacer into a space defined between a first bone and a second bone, such as a joint space between a first metatarsal and medial cuneiform. A bone preparation guide can be aligned with opposed ends of the first bone and the second bone using the spacer as an alignment reference. For example, the bone preparation guide may include an opening such that the guide can be installed across the joint space with the spacer received in the opening. A clinician may use the bone preparation guide to guide a tissue removing instrument to cut or otherwise prepare the ends of the first bone portion and second bone portion.SELECTED DRAWING: Figure 1

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.

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.

Systems and methods for bone reconstruction. In some implementations the systems and methods may be used to remove and replace a bone portion with an implant, which may be an allograft, biomaterial, metal implant, or any other type of implant. The systems and methods may be used to make accurate cuts in bone to remove a diseased bone portion and then reproduce the cuts in a donor material to recreate the precise geometry of the removed portion. Additionally or alternatively, the system can check the accuracy of reconstruction when a segment of bone is replaced.

Capture and fixation systems and methods for fracture reduction and fixation and / or tissue capture and fixation. A first implant is coupled to an elongated, flexible tension component via an attachment component of the first implant. The first implant and the flexible tension component are inserted into and fixed to a first bone portion. The flexible tension component is adjusted so as to position the first bone portion and a second bone portion in a reduced fracture configuration. A second implant is inserted into and affixed to the second bone portion. The second implant engages the flexible tension component, which causes tension in the flexible tension component that holds the first and second bone portions in the reduced fracture configuration. The second implant can also further capture a tissue and fixate it to the second bone portion.

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).

The present invention discloses a bidirectional rotating pelvic osteotomy orthosis and a control method thereof, belonging to the technical field of pelvic osteotomy orthosis, comprising a shaft and a spherical shaft fixed by the shaft and passing through the center of a ball, the shaft and the spherical shaft forming an integral structure, a support ring being provided on the outside of the spherical shaft, and two brackets for limiting the spherical shaft being symmetrically provided on the inner side of the support ring, a limiting cavity being provided at one end of the shaft, and a limiting through-hole being provided in the limiting cavity and passing through to the other end of the shaft, the head end of an embedded rod being movably inserted into the limiting through-hole, and the tail end of the embedded rod being connected to a clamping claw through a control assembly, the head end of the embedded rod being connected to the limiting assembly, and one end of the shaft being fixedly connected to a grip ring. The invention can facilitate the correction of the pelvic osteotomy part, and can facilitate the knowledge of the rotation angle of the pelvic osteotomy end in the sagittal plane and the coronal plane, thereby helping doctors to more accurately control the degree of the pelvic osteotomy part and helping doctors to perform pelvic correction surgery more intuitively.