61 results about "Osteosynthesis" patented technology

A method and suture anchor for treatment of spinal stenosis. The method includes the steps of cutting off a muscle origin or insertion from a spinous process, cutting off the spinous process at the transition to the lamina arcus vertebrae, at least partial resection of the lamina arcus vertebrae and thereby decompression of the spinal cord within the foramen vertebral, performing osteosynthesis of the spinous process, and placing a suture anchor within the spinous process and reattaching the muscle origin or insertion to the spinous process. Further methods for spine stabilization are provided wherein suture anchors are used to implement a tension band wiring. Further methods for reduction of unwanted effects after spinal treatment are provided.

The present invention provides an osteosynthesis plate for fixing bone fragments in the repair of bone, particularly the mandible. [Solution] The plate body P comprises a plate body having at least one bridge portion BU used to bridge a gap S extending between bone fragments K1, the plate body comprising fixing portions BA1, BA2 each associated with at least one fixing point, at least one fixing point BP1, BP2 of the fixing portions formed on an island portion IA, the island portion being connected to each associated fixing portion only via spring segments FS1, FS2 which allow elastically restorable relative displacement between each fixing portion and each island portion, at least one of the spring segments causing relative displacement between the island portion and the associated fixing portion when a load is applied in the principal loading direction of the bone, and increasing the distance between the island portion and at least one bridge portion.

A surgical guide for osteosynthesis surgery is disclosed. The surgical guide includes a guide body comprising a head and a base, the head extending from one end of the base. The surgical guide also includes a guiding portion allowing the surgical guide to be positioned on a targeting wire inserted into a bone and a locking device configured to secure the surgical guide on the targeting wire when the surgical guide is positioned on the targeting wire. The surgical guide also includes a targeting arm adapted to cooperate with the base of the guide body so as to be displaceable relative to the guide body, the targeting arm having at a distal end thereof at least one opening for supporting the at least one guiding wire.

A reusable surgical guide for osteosynthesis surgery, forming an aimer for guiding and inserting axial wires into bone portions. The guide includes a grip constituted by a head extending at the upper end of a base, a trigger adapted to be displaced in a first slide formed in the head of the grip and whose distal end is provided with a through hole for the insertion of a wire, a blade secured to the distal end of the head of the grip, under the trigger, and a so-called aiming piece adapted to be displaced in a second slide formed in the base of the grip. The aiming piece includes at the distal end thereof means for supporting at least one wire.

There is a fixation device for promoting fusion and / or osteosynthesis of a first bone segment and a second bone segment, comprising a bone plate portion including an outer surface, an inner surface and at least one fixation aperture extending from the outer surface to the inner surface and a bone wedge portion extending from the plate portion at a first end and a free opposite end, the bone wedge portion comprising a porous architecture configured to promote bone ingrowth, the wedge portion defining first and second engagement surfaces for engaging the first bone segment and a second bone segment, respectively. There is also a method of manufacturing a fixation device for promoting fusion and / or osteosynthesis of a first bone segment and a second bone segment, a method of promoting fusion and / or osteosynthesis of a first bone segment and a second bone segment, and a fixation kit.

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

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 utility model discloses an ulna coracoid process bone fracture plate through anterior approach, bone setting of ulna coracoid process is achieved through anterior approach, the bone fracture plate is of a T-shaped structure, the total length of the bone fracture plate is smaller than 2.5 cm, the bone fracture plate comprises an adaptive plate and a fixing plate which are in angle connection, the adaptive plate is located above the fixing plate, the adaptive plate is used for being matched with a far-end lateral column of the ulna coracoid process, and the fixing plate is used for being matched with the far-end lateral column of the ulna coracoid process. The adaptive plate comprises a positioning hole and suture holes formed in the two sides of the positioning hole; the fixing plate is narrower than the adaptive plate, an adjusting hole and a fixing hole are formed in the fixing plate, the adjusting hole is located between the positioning hole and the fixing hole and used for achieving adaptive adjustment of the bone fracture plate and the far-end outer side column, and the total length is the total distance between the top end of the adaptive plate and the bottom end of the fixing plate. According to the bone fracture plate, the matching stability of the bone fracture plate and the front portion of the elbow joint after bone fracture is improved, stimulation to local soft tissue is reduced, the contact area between the bone fracture plate and ulna coracoid processes is increased, the fixing strength between the bone fracture plate and the ulna coracoid processes is improved, the postoperative healing effect is improved, and the stress fracture risk is reduced.

FIELD: traumatology; orthopedics.SUBSTANCE: used in the treatment of displaced fractures of both columns of the acetabulum (AC). After performing repositioning and metal osteosynthesis of the anterior column of the acetabulum, X-ray control is performed. A proximal support consisting of two halves is formed on bone rods inserted into the iliac bones. On the hip, on the bone rods, on the side of the acetabulum fracture, in a position of its internal rotation by 10° , a distal support along the outer surface is formed with the possibility of movement, distraction and lateralization. The proximal and distal supports are connected by rods, with the help of which distraction along the axis of the femur is performed by 2 cm and its lateralization by rods by 1.5 cm, the apparatus is stabilized, and X-ray control is performed.EFFECT: method ensures anatomically correct restoration of the acetabulum and its reliable stabilization, allowing the patient to be activated at an early stage due to the formation of a proximal support from two halves on bone rods inserted into the iliac bones, creating the ability to produce and maintain internal rotation of the hip, distraction and lateralization of the hip along its axis due to internal rotation of the hip by 10°, creating tension in the short external rotators of the hip.1 cl, 4 dwg, 1 ex

The invention relates to an osteosynthesis plate (P) with an elongated base body (G) comprising a top surface (G1), a bottom surface (G2), a head section (KA), and a shaft section (SA). Several through-holes (A1 to A12) are arranged on the head section (KA) and on the shaft section (SA), each designed to accommodate a screw (SK) and extending between the top surface (G1) and the bottom surface (G2) of the base body (G) along a corresponding central axis (MA1 to MA12).The head section (KA) has four pairs of through-openings (APa1, APa2, APa3, APa4) and a single through-opening (A7), with the first pair of through-openings (APa1), then the second pair of through-openings (APa2), then the third pair of through-openings (APa3), then the single through-opening (A7) and finally the fourth pair of through-openings (APa4) following one another in the longitudinal direction of the base body (G) on the head section (K), starting from a proximal end (E1).

The present invention relates to a clamping screw (6) for osteosynthesis, comprising at least one screw thread (7, 10) along a main axis (X) and, at its end referred to as the apex end (11), having a socket (12) which, about said main axis (A), has evenly angularly distributed shapes designed to accept complementing shapes of a screwdriver (19) engaged in said socket (12), notable in that the socket (12) of the screw (6) comprises at least three regular shapes (13) of which the vertices are inscribed inside a circle referred to as circumscribed circle (30) and at least two adjacent vertices of the socket (21) are connected to form a convex lobe referred to as indexing lobe (16) of which the radius of curvature is equal to the radius of the circumscribed circle (30).

The present invention relates to an osteosynthesis device (1) comprising at least one fixation pin (2) suitable for embedding in bone material (R) so as to ensure at least partial reduction of a fracture, the osteosynthesis device (1) comprising locking means (3) designed to lock in place the fixation pin (2) embedded in the bone material (R), the locking means (3) comprising (a) a support structure (4) provided with means (41) by which the support structure (4) can be fixed on the bone material (R) and comprising a locking opening (42) suitable for the fixation pin (2) to pass through, and (b) a fastening means (5) fitted in the locking opening (42) and designed to abut against a portion of the fixation pin (2) to ensure the locking of the fixation pin (2) in place.

Osteosynthesis unit comprising an osteosynthesis device having at least one through hole, at least one screw having a threaded body and a head with a profile converging towards the threaded body, an elastically deformable insert engaged within the at least one hole, and comprising a longitudinal cavity through which the screw in use extends, and having such cavity a profile converging in the direction of insertion of the screw, and such insert having a longitudinal cut defining an interruption of the peripheral surface of the insert so that, when the head of the screw is engaged in the cavity, a load applied to the screw elastically expands the insert generating an elastic reaction force which closes the radial clearances between the head of the screw and the insert.

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

The invention discloses memory alloy rib bone fracture plate mounting forceps and a using method thereof.The memory alloy rib bone fracture plate mounting forceps comprise a holding rod and a forceps head, a middle section rod is further arranged between the holding rod and the forceps head, U-shaped grooves are formed in the end, close to the middle section rod, of the forceps head and the end, close to the holding rod, of the middle section rod correspondingly, and rotating columns are fixedly arranged in the U-shaped grooves; limiting teeth are further evenly arranged in the circumferential direction of the rotating column, connectors are fixedly arranged at the end, close to the tong head, of the middle section rod and the end, close to the middle section rod, of the holding rod, and positioning toothed plates matched with the limiting teeth are fixedly arranged on the connectors. When the installation clamp is used, the extending path of the installation clamp and the angle, needing to be adjusted, of the clamp head are observed through an endoscope, then after the angle is adjusted, the positioning toothed plate and the limiting teeth are meshed, the middle section rod and the clamp head can be fixed, in this way, direction locking is directly achieved, and operation convenience and safety are improved.

A method and system for producing a curvature of a rod of vertebral osteosynthesis material designed to support a vertebral column of a patient is provided. A production unit receives a model defining the curvature of the rod. The curvature of the rod is based on a preoperative X-ray of the vertical column and defined by a simulated correction to be applied to the lumbar segment to be treated, a deduced curved segment representing the curvature of the rod based at least in part on one or more of a lumbar lordosis or a first curvature above a repositioned apex point and the second curvature below the repositioned apex point, and a translated curved segment representative of the deduced curved segment being translated away from a mean line of the vertebral column. The production unit uses computer aided design to produce the rod.

An assembly for rectifying vertebrae, comprises: two bone anchoring means intended to be implanted on a same vertebra, a triangulation bar and a connection means for connecting the triangulation bar to each bone anchoring means and for holding the bone anchoring means in a given position in order to form, with the triangulation bar connected to the bone anchoring means by means of the connection means, a rigid triangular assembly, the triangulation bar comprising an attachment area for attaching a correction instrument arranged to ensure a rigid attachment in rotation and in translation of the correction instrument on the triangulation bar.

An osteosynthesis plate as replacement of a synarthrosis includes two fixation plate segments for securing the osteosynthesis plate to two bones. The osteosynthesis plate has a connecting segment interconnecting the two fixation plate segments, the connecting segments protruding from the fixation plate segments.

Abstract OSTEOSYNTHESIS PLATE The invention relates to an osteosynthesis plate (OP, OPʹ, OP", OP"ʹ), which is provided for a fixation of bone fragments (K1, K2) for the restoration of a bone (K), in particular a mandible, comprising a plate body (P, Pʹ), wherein the plate body (P, Pʹ) has at least one bridge section (BU, BU1, BU2) which is used to bridge a gap (S) extending between the bone fragments (K1, K2), wherein the plate body (P, Pʹ) is equipped with fixation sections (BA1, BA2, BA1ʹ, BA2ʹ, BA3ʹ) with each of which at least one fixation point (BP1, BP2, BP1ʹ, BP2ʹ, BP3ʹ) is associated, wherein the at least one fixation point (BP2, BP1ʹ, BP2ʹ) on at least one of the fixation sections (BA1, BA2, BA1ʹ, BA2ʹ, BA3ʹ) is formed on an island section (IA, IAʹ) which is connected to the respective associated fixation section (BA2, BA1ʹ, BA2ʹ) exclusively via spring segments (FS1, FS2, FS1ʹ, FS2) which permit a relative displacement of the respective fixation section (BA2, BA1ʹ, BA2ʹ) and of the respective island section (IA, IAʹ) relative to one another in an elastically resilient manner, wherein at least one of the spring segments (FS1, FS2, FS1ʹ, FS2) is aligned in such a way that, when a load (B) is applied in a main loading direction of the bone (K), a relative displacement takes place between the island section (IA, IAʹ) and the fixation section (BA2, BA1ʹ, BA2ʹ) associated with this island section (IA, IAʹ), during which a distance between the island section (IA, IAʹ) and the at least one bridge section (BU, BU1) increases. FIG. 1A Abstract FIG. 1A 20 25 27 15 58 01 D ec 2 02 5 A b s t r a c t 2 0 2 5 2 7 1 5 5 8 0 1 D e c 2 0 2 5 KLS0047P K1 BP1 K S IA D1 FS2 K2 BP2 S21 GS1 S11 P SM1 1 / 6 BA1 DO1 BU FS1 OP D2 OS DO2 BA2 S12 GS2 S22 Fig. 1A 2024-12-19 20 25 27 15 58 01 D ec 2 02 5 2 0 2 5 2 7 1 5 5 8 0 1 D e c 2 0 2 5 K L S 0 0 4 7 P 2 0 2 4 - 1 2 - 1 9

The present invention provides an osteosynthesis plate for fixing bone fragments in the repair of bone, particularly the mandible. [Solution] The invention comprises a plate body P, the plate body having an upper surface OS and a lower surface for positioning the plate body on bone fragments K1 and K2, the plate body having a plurality of fixing parts BA1 and BA2, the bone fixation plate OP being fixed to the bone fragments at the lower surface of the plurality of fixing parts, each of the plurality of fixing parts being associated with at least one fixing point BP1 and BP2, at least one fixing point of the fixing parts being formed on an island part IA, the island part being connected to the relevant fixing part of the plate body only via spring segments FS1 and FS2 that allow elastically restorable relative displacement between each fixing part and each island part, and the spring segments asymmetrically surrounding the fixing point associated with the spring segments.

The invention relates to an osteosynthesis plate (P) designed for attachment to the proximal humerus (H) for fixing bone fragments and comprising an elongated base body (G) with a top surface (G1) and an opposing bottom surface (G2). The base body (G) has two fastening sections (BA1, BA2) arranged longitudinally at the respective ends (E1, E2) of the base body (G), each of which is equipped with at least one through-hole (A1, A2, A3, A4), wherein the through-holes (A1, A2, A3, A4) are each provided for receiving one screw (SK). The osteosynthesis plate (P) is designed for anterior fixation to the proximal humerus (H), wherein the base body (G) is provided on the underside (G2) in the longitudinal direction between the fixation sections (BA1, BA2) with a recess (AS) which completely penetrates the base body (G) transversely.The invention further relates to an osteosynthesis set (O) with such an osteosynthesis plate (P).

The present invention provides a rib osteosynthesis plate. The rib osteosynthesis plate includes a plate body and a plurality of nail bodies protruding and extending from the plate body toward the same side. Both the nail bodies and the plate body are made by pouring silk fibroin solution. The nail bodies and the plate body are integrally formed. Each nail body includes multiple support layers arranged from the inside to the outside, and each support layer is inclined and penetrated with expansion grooves. When the nail body is subjected to axial pressure, it expands radially. The rib osteosynthesis plate and the rib osteosynthesis kit of the present invention, by providing an integrally connected plate body and nail bodies, enable the nail bodies to expand to achieve the fixation of the rib osteosynthesis plate, avoiding the risk of weakened fixation effect caused by screw loosening and further causing the displacement of the osteosynthesis plate, and effectively promoting the normal healing of fractures.

The invention relates to the application of the tension-band-aiming device for olecranon fracture osteosynthesis. The device may also be used in cases where osteotomy of the olecranon is needed. It comprises a main part and five other adjuvant elements one of which assists for the osteotomy. The device offers precision for optimal results and is easy to use. The invention also relates to a method for the application of the tension-band-aiming device for olecranon fracture osteosynthesis and to its use.

A method and system for producing a curvature of a rod of vertebral osteosynthesis material designed to support a vertebral column of a patient is provided. A production unit receives a model defining the curvature of the rod. The curvature of the rod is based on a preoperative X-ray of the vertical column and defined by a simulated correction to be applied to the lumbar segment to be treated, a deduced curved segment representing the curvature of the rod based at least in part on one or more of a lumbar lordosis or a first curvature above a repositioned apex point and the second curvature below the repositioned apex point, and a translated curved segment representative of the deduced curved segment being translated away from a mean line of the vertebral column. The production unit uses computer aided design to produce the rod.

The invention relates to a tightening screw for osteosynthesis comprising a thread (22) arranged along a main axis (A), and at its rear end an imprint having around the main axis (A) regular shapes distributed angularly, adapted to receive complementary shapes of a screwdriver engaging thereon, the rear face of the screw (28) having an inclination relative to a transverse plane of the screw (20), this screw being remarkable in that the imprint of the screw comprises at least one particular shape different from the other regular shapes.

System for osteosynthesis comprising a bone plate (2) having at least one receiving opening (8) and a bone anchor (3) comprising an anchor head (6), wherein the anchor head (6) is configured for fixation in the receiving opening (8) by forming a positive-locking and / or friction-locking connection with the bone plate (2), wherein the bone plate (2) is made of a magnesium alloy at least in a section comprising the receiving opening (8) and the bone anchor (3) is made of a magnesium alloy at least in a section comprising the anchor head (6), wherein the magnesium alloy of the bone anchor (3) and the magnesium alloy of the bone plate (2) have different hardnesses, characterized in that • the magnesium alloy with greater hardness has a material structure achieved at least in one step by cold forming and • the bone plate (2) has a coating (12) on a base body made of the respective magnesium alloy at least in a section encompassing the receiving opening (8) and / or the bone anchor (3) has a coating (12) on a base body made of the respective magnesium alloy at least in a section encompassing the anchor head (6).

The utility model provides a head frame with an improved adjusting assembly for a suturing traction osteogenesis. The head frame comprises a fixing frame, fixing plates are arranged on the two sides of the fixing frame, fixing rods are arranged at one ends of the fixing plates, fixing sleeves are arranged on the two sides of the fixing frame, the fixing rods are clamped in the fixing sleeves, and the fixing plates are connected with the fixing frame in a sliding mode. A plurality of sets of fastening screw holes are formed in the fixing plate, the fastening screws are arranged in the fastening screw holes in a penetrating mode, a sliding rod is arranged on the fixing frame, and a traction assembly is arranged below the fixing frame and arranged on the sliding rod in a sleeving mode. The fixing plates on the head frame are matched with the fixing sleeves on the fixing frame through the fixing rods, the distance between the two fixing plates can be adjusted, and therefore the fixing size of the fixing head frame can be adjusted according to the skull of a patient, it is ensured that the head frame can be perfectly attached to the skull of the patient, and the stable and reliable fixing effect is achieved. Meanwhile, the traction assembly can move up and down along the sliding rod and can be adjusted according to the actual condition of the patient, so that the optimal traction effect is achieved.

An osteosynthesis plate (OP, OP′, OP″, OP′″) for fixation of bone fragments (K1, K2) includes a plate body (P, P′) with at least one bridge section (BU, BU1, BU2) for bridging a gap (S) between the bone fragments (K1, K2). The plate body (P, P′) includes fixation sections (BA1, BA2, BA1′, BA2′, BA3′), each of which is associated with at least one fixation point (BP1, BP2, BP1′, BP2′, BP3′) that is formed on an island section (IA, IA′) connected to the respective associated fixation section (BA2, BA1′, BA2′) exclusively via spring segments (FS1, FS2, FS1′, FS2) that permit relative displacement of the respective fixation section (BA2, BA1′, BA2′) and of the respective island section (IA, IA′) in an elastically resilient manner. At least one of the spring segments (FS1, FS2, FS1′, FS2) is aligned such that, when a load (B) is applied in a main loading direction of the bone (K), a relative displacement takes place between the island section (IA, IA′) and the fixation section (BA2, BA1′, BA2′) associated with this island section (IA, IA′), during which a distance between the island section (IA, IA′) and the at least one bridge section (BU, BU1) increases.

The present invention concerns a surgical guide (1) for osteosynthesis surgery comprising: - a guide body (3) comprising a head and an base, the head extending from one end of the base, - a guiding portion allowing the surgical guide to be positioned on a targeting wire (2) inserted into a bone, - a locking device configured to secure the surgical guide on the targeting wire (2), when the surgical guide is positioned on the targeting wire. - a targeting arm (4) adapted to cooperate with the base (32) of the guide body (3) so as to be displaceable relative to the guide body, the targeting arm (4) having at a distal end thereof at least one opening (4b) for supporting the at least one guiding wire.