A MODULAR AND RECONFIGURABLE MULTI-JOINT ORTHOPEDIC EXTERNAL FIXATION FRAME

Abstract

The present invention provides a modular and reconfigurable multi-joint orthopedic external fixation frame, which relates to the field of orthopedic external fixation devices. The device comprises a shoulder assembly, an angle assembly, a support assembly, an adjustment assembly, fixation pins. The shoulder assembly is configured to provide a curved fixation position. The angle assembly is disposed at the front of the shoulder assembly and is configured to provide connection support at different angles. The support assembly is arranged on the angle assembly, is configured to provide a fixed position. The adjustment assembly is disposed on the support assembly, is configured to provide a linear fixation position. The fixation pins are arranged on the adjustment assembly and the shoulder assembly and are used to connect to the bone. By means of the adjustment assembly and support assembly, the device can meet both the positional and angular fixation requirements, providing strong adaptability.

Description

TECHNICAL FIELD The present invention relates to the technical field of orthopedic external fixation devices, specifically to . BACKGROUND The human body has multiple joints, such as the shoulder joint, wrist joint, and knee joint. When a patient suffers a joint fracture, external fixation frames are generally required. In the related art, for example, CN103445833A discloses a shoulder joint dynamic-static combined control external fixator, comprising a bone external fixation frame, a steel pin fixing clamp arranged on the bone external fixation frame, and a steel pin fixed through the steel pin fixing clamp; the bone external fixation frame comprises a proximal C-shaped hole ring and a distal C-shaped hole ring, the openings of the proximal C-shaped hole ring and the distal C-shaped hole ring facing the same direction, and both being uniformly provided with a plurality of holes; the central portions of the proximal C-shaped hole ring and the distal C-shaped hole ring are connected through an arcuate connecting rod, and the two ends of the proximal C-shaped hole ring and the distal C-shaped hole ring are connected by a dynamic traction joint. Traditional external fixation frames, especially those for the shoulder joint, have complex structures that surround both the anterior and posterior sides of the joint. This causes patients, when resting, to only be able to sleep on their side, severely affecting adjustment of sleeping posture, which is not conducive to the recovery of the fracture site. SUMMARY To address the deficiencies in the prior art, the present invention provides , which solves the problems of unreasonable distribution of external fixation frame structures that easily affect patient rest. To achieve the above objectives, the present invention is implemented through the following technical solution: , comprising: a shoulder assembly, wherein the shoulder assembly is configured to provide an arcuate fixation position; an angle assembly, wherein the angle assembly is arranged at the front of the shoulder assembly and configured to provide connection support at different angles; a support assembly, wherein the support assembly is arranged on the angle assembly and configured to provide a fixed position; an adjustment assembly, wherein the adjustment assembly is arranged on the support assembly and configured to provide a linear fixation position; a fixation pin, wherein the fixation pin is arranged on the adjustment assembly and the shoulder assembly and configured to connect to the bone. By arranging the adjustment assembly and the support assembly, and utilizing the cooperative operation of the adjustment assembly and the support assembly, the device can meet the requirements for fixation positions and angles, providing strong applicability. By arranging the angle assembly and the shoulder assembly, and utilizing the cooperative operation of the angle assembly and the shoulder assembly, the device can be suitable for fracture fixation at the shoulder joint. The structural design is reasonable, does not affect the adjustment of the patient’s posture, ensures normal rest, and promotes faster recovery of the affected area. Preferably, the shoulder assembly comprises a shoulder shell, the shoulder shell comprises an arcuate portion and a connecting shell, the arcuate portion is uniformly provided with mounting seats, and the mounting seats are provided with locking sleeves; the locking sleeves can lock the internal fixation pins by rotating their own screws. Preferably, the angle assembly comprises a vertical screw, the upper portion of the vertical screw is fixedly connected with a connecting shaft, the connecting shaft is rotatably connected with a horizontal screw, the vertical screw and the horizontal screw are both threadedly connected with position nuts, the connecting shaft is fixedly connected with a fixing disc, the fixing disc is uniformly provided with adjustment holes around the circumference, the horizontal screw is provided with a locking base, and the locking base is fixedly connected with the fixing disc through a locking element passing through the adjustment hole; the fixing disc is fixedly connected with the connecting shell. Preferably, the support assembly comprises an integrally fixed arcuate plate, straight-edge plate, and cooperating plate, the arcuate plate and the straight-edge plate are both provided with support holes; the vertical screw and the horizontal screw can both pass through the cooperating plate. Preferably, the adjustment assembly comprises an adjustment rod, the lower portion of the adjustment rod is threadedly connected with an adjustment nut, the upper portion of the adjustment rod is fixedly connected with a locking plate, the locking plate is uniformly provided with card slots around the circumference, the upper portion of the adjustment rod is rotatably connected with an adjustment sleeve through a rotating shaft, the adjustment sleeve is provided with a locking groove, the upper portion of the adjustment sleeve is provided with a sliding groove, the adjustment sleeve is threadedly connected with a clamping screw, the inner side of the adjustment sleeve is provided with a movable clamping block, the movable clamping block is fixedly connected with a locking post, the upper portion of the locking post slidably cooperates with the sliding groove, and the clamping screw rotatably cooperates with the movable clamping block; by rotating the clamping screw, the internal fixation pin can be locked. Preferably, the number of vertical screws and horizontal screws is two. Preferably, the movable clamping block and the locking groove are both provided with anti-slip pads. Preferably, the fixation pin can be any one of K-wires or screws. The present invention provides , having the following beneficial effects: By arranging the adjustment assembly and the support assembly and utilizing their cooperative operation, the device can meet the requirements for fixation positions and angles, providing strong applicability. By arranging the angle assembly and the shoulder assembly and utilizing their cooperative operation, the device can be suitable for fracture fixation at the shoulder joint. The structural design is reasonable, does not affect the adjustment of the patient’s posture, ensures normal rest, and promotes faster recovery of the affected area. All components of the present invention are modularly designed, allowing selection and reconfiguration according to joint positions, thereby meeting the requirements of various joints. BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 is a schematic diagram of the shoulder component structure of the present invention; Figure 4 is a schematic diagram of the angle component structure of the present invention; Figure 5 is a schematic diagram of the support component and adjustment component structure of the present invention; Figure 6 is a cross-sectional schematic diagram of the adjustment component of the present invention; Figure 7 is a schematic diagram of the adjustment component structure of the present invention. wherein, 1.Shoulder Assembly; 2.Angle Assembly; 3.Support Assembly; 4.Adjustment Assembly; 101.Shoulder Shell; 1011.Arcuate Portion; 1012.Connecting Shell; 102.Mounting Seat; 103.Locking Sleeve; 201.Vertical Screw; 202.Position Nut; 203.Connecting Shaft; 204.Fixing Disc; 205.Adjustment Hole; 206.Horizontal Screw; 207.Locking Base; 208.Locking Element; 301.Arcuate Plate; 302.Straight-edge Plate; 303.Support Hole; 304.Cooperating Plate; 401.Adjustment Nut; 402.Adjustment Rod; 403.Locking Plate; 4031.Card Slot; 404.Locking Groove; 405.Adjustment Sleeve; 406.Movable Clamping Block; 407.Clamping Screw; 408.Fixation Pin; 409.Locking Post; 4041.Rotating Shaft; 410.Sliding Groove DETAILED DESCRIPTION OF THE INVENTION The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making creative contributions are within the scope of protection of the present invention. As shown in FIGS. 1–7, the embodiment of the present invention provides , comprising: With reference to FIGS. 1 and 3, shoulder assembly 1, used to provide an arcuate fixation position; shoulder assembly 1 includes shoulder shell 101, which comprises arcuate portion 1011 and connecting shell 1012. Arcuate portion 1011 is evenly provided with mounting seats 102, and mounting seat 102 is provided with locking sleeve 103; the locking sleeve 103 can tighten the internal fixation pin 408 by turning its own screw. Arcuate portion 1011 is arc-shaped, simulating the human shoulder arc, and can be used for fixation of shoulder fractures. Connecting shell 1012 is approximately one-eighth of a spherical shell, used to connect the shoulder shell 101 and fixing disc 204, without affecting normal chest contour breathing or the patient’s ability to change sleeping positions; the patient can sleep on the side or on the back, ensuring adequate sleep and facilitating rapid recovery of the affected area. Locking sleeve 103 is a cylindrical structure with an opening; when its screw is tightened, the friction between the locking sleeve 103 and fixation pin 408 locks fixation pin 408. With reference to FIGS. 1, 2, and 4, angle assembly 2 is arranged at the front of shoulder assembly 1 to provide different-angle connection support. Angle assembly 2 includes vertical screw 201, whose upper part is fixedly connected to connecting shaft 203, which is rotatably connected to horizontal screw 206. Both vertical screw 201 and horizontal screw 206 are threadedly connected to position nuts 202. Connecting shaft 203 is fixedly connected to fixing disc 204, which is evenly provided with adjustment holes 205 on its circumference. Horizontal screw 206 is provided with locking base 207, which is fixedly connected to fixing disc 204 through locking element 208 passing through adjustment hole 205. Fixing disc 204 is fixedly connected to connecting shell 1012. The number of vertical screws 201 and horizontal screws 206 is two each. Angle assembly 2 can have multiple states, such as a 90-degree state or a straight-line state. To adjust the state, loosen the nut of locking element 208, remove the screw, rotate horizontal screw 206 to change its position, then reinsert the screw into locking base 207, pass through adjustment hole 205, and tighten the nut to lock the state. Connecting shell 1012 can be either welded directly to fixing disc 204 or detachably fixed using bolts and nuts; both methods are applicable. The two position nuts 202 function as a set; by tightening them, support assembly 3 can be locked in place, and the height can be flexibly adjusted. With reference to FIGS. 1, 2, and 5, support assembly 3, arranged on angle assembly 2, provides a fixation position. Support assembly 3 includes integrally fixed arcuate plate 301, straight-edge plate 302, and cooperating plate 304. Arcuate plate 301 and straight-edge plate 302 are both provided with support holes 303. Vertical screw 201 and horizontal screw 206 can pass through cooperating plate 304. Support holes 303 are for adjustment rod 402 to pass through for installation of adjustment assembly 4. The support holes 303 on arcuate plate 301 are arranged around the arm or shoulder bones, allowing selection of different insertion angles. Straight-edge plate 302 is located at the front, allowing insertion of fixation pin 408 from the front. Cooperating plate 304 is used to cooperate with vertical screw 201 and horizontal screw 206 for installation and connection. With reference to FIGS. 1, 2, 5, 6, and 7, adjustment assembly 4, arranged on support assembly 3, provides a linear fixation position. Adjustment assembly 4 includes adjustment rod 402, whose lower part is threadedly connected to adjustment nut 401, and whose upper part is fixedly connected to locking plate 403, with card slots 4031 evenly arranged on the circumference. The upper part of adjustment rod 402 is rotatably connected via rotating shaft 4041 to adjustment sleeve 405, which is provided internally with locking groove 404, has sliding groove 410 on the upper part, is threadedly connected to clamping screw 407, and has movable clamping block 406 on its inner side. Movable clamping block 406 is fixedly connected with locking post 409, whose upper side slides with sliding groove 410. Clamping screw 407 rotates with movable clamping block 406; tightening clamping screw 407 locks internal fixation pin 408. Anti-slip pads are provided inside movable clamping block 406 and locking groove 404. By passing adjustment rod 402 through support hole 303 and tightening adjustment nut 401, partial fixation of adjustment rod 402 is achieved. Adjustment sleeve 405 can rotate relative to adjustment rod 402. To rotate, loosen clamping screw 407, moving movable clamping block 406 and locking post 409 away from locking groove 404. Without the restriction of card slot 4031 on locking post 409, adjustment sleeve 405 can rotate. After positioning, tighten clamping screw 407, which drives movable clamping block 406 and locking post 409 toward locking groove 404, locking the lower side of locking post 409 into card slot 4031, fixing the angle of adjustment sleeve 405. Movable clamping block 406 and locking groove 404 also secure fixation pin 408. The internal anti-slip pads improve fixation stability. With reference to FIG. 2, fixation pin 408 is arranged on adjustment assembly 4 and shoulder assembly 1 to connect bones. Fixation pin 408 may be either a Kirschner wire or a screw. Both Kirschner wires and screws are commonly used components for bone connection and meet the requirements for fracture fixation. Each part is modular, allowing selective reconfiguration according to the joint location to meet the needs of various joint fractures. Operating principle: According to the fracture requirement, select the appropriate state of angle assembly 2. For example, at the shoulder joint, loosen the nut of locking element 208, remove the screw, rotate horizontal screw 206 to change its position, arranging a 90-degree angle between horizontal screw 206 and vertical screw 201, then reinsert the screw into locking base 207, pass through adjustment hole 205, and tighten the nut to lock the state. Connecting shell 1012 is integrated with fixing disc 204. Select an appropriate number of support assemblies 3, and pass vertical screws 201 and horizontal screws 206 through the corresponding cooperating plates 304, then lock them in place using position nuts 202. Next, pass adjustment rod 402 through support holes 303 and tighten adjustment nut 401 to partially fix adjustment rod 402. Adjustment sleeve 405 can rotate relative to adjustment rod 402. To rotate, loosen clamping screw 407, moving movable clamping block 406 and locking post 409 away from locking groove 404. Without the restriction of card slot 4031 on locking post 409, adjustment sleeve 405 can rotate. After positioning, tighten clamping screw 407, which drives movable clamping block 406 and locking post 409 toward locking groove 404. The lower side of locking post 409 engages with card slot 4031, thereby fixing the angle of adjustment sleeve 405. Movable clamping block 406 and locking groove 404 secure fixation pin 408. The fixation pins 408, already inserted into the corresponding bone positions, are thus locked in place, achieving stabilization of the fracture site. After use, this external fixation frame does not interfere with the patient’s sleeping posture; the patient can sleep on the side or on the back. Compared with traditional complex external fixation frames, it allows convenient patient rest while meeting requirements for fixation at various angles and positions. Although the embodiments of the present invention have been illustrated and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention. The scope of the present invention is defined by the appended claims and their equivalents. PREFERRED EMBODIMENT 1. , characterized in that it comprises: a shoulder assembly (1), the shoulder assembly (1) being configured to provide a curved fixation position; an angle assembly (2), the angle assembly (2) being disposed at the front of the shoulder assembly (1) and configured to provide connection support at different angles; a support assembly (3), the support assembly (3) being arranged on the angle assembly (2) and configured to provide a fixed position; an adjustment assembly (4), the adjustment assembly (4) being disposed on the support assembly (3) and configured to provide a linear fixation position; and a fixation pin (408), the fixation pin (408) being arranged on the adjustment assembly (4) and the shoulder assembly (1) and used for connecting to the bone. 2. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 1, characterized in that the shoulder assembly (1) comprises a shoulder shell (101), the shoulder shell (101) comprising an arcuate portion (1011) and a connecting shell (1012), the arcuate portion (1011) being uniformly provided with mounting seats (102), the mounting seats (102) being provided with locking sleeves (103); the locking sleeves (103) are configured to lock the internal fixation pins (408) by rotating their own screws. 3. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 2, characterized in that the angle assembly (2) comprises a longitudinal screw rod (201), the upper portion of the longitudinal screw rod (201) being fixedly connected with a connecting shaft (203), the connecting shaft (203) being rotatably connected with a transverse screw rod (206), the longitudinal screw rod (201) and the transverse screw rod (206) being threadedly connected with position nuts (202), the connecting shaft (203) being fixedly connected with a fixing disc (204), the fixing disc (204) being uniformly provided with adjustment holes (205) around its circumference, the transverse screw rod (206) being provided with a locking platform (207), the locking platform (207) being fixedly connected with the fixing disc (204) through the adjustment holes (205) by means of locking members (208); the fixing disc (204) being fixedly connected with the connecting shell (1012). 4. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 3, characterized in that the support assembly (3) comprises an integrally fixed arcuate plate (301), a straight-edged plate (302), and a mating plate (304), the arcuate plate (301) and the straight-edged plate (302) being provided with support holes (303); the longitudinal screw rod (201) and the transverse screw rod (206) can both pass through the mating plate (304). 5. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 1, characterized in that the adjustment assembly (4) comprises an adjustment rod (402), the lower portion of the adjustment rod (402) being threadedly connected with an adjustment nut (401), the upper portion of the adjustment rod (402) being fixedly connected with a locking plate (403), the locking plate (403) being uniformly provided with card slots (4031) around its circumference, the upper portion of the adjustment rod (402) being rotatably connected with an adjustment sleeve frame (405) through a rotating shaft (4041), the adjustment sleeve frame (405) being provided with a locking groove (404), the upper portion of the adjustment sleeve frame (405) being provided with a moving groove (410), the adjustment sleeve frame (405) being threadedly connected with a clamping screw (407), a moving clamp block (406) being arranged inside the adjustment sleeve frame (405), the moving clamp block (406) being fixedly connected with a locking post (409), the upper portion of the locking post (409) being slidably engaged with the moving groove (410), the clamping screw (407) being rotatably engaged with the moving clamp block (406); by tightening the clamping screw (407), the internal fixation pin (408) can be locked. 6. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 3, characterized in that the longitudinal screw rod (201) and the transverse screw rod (206) are both provided in a quantity of two. 7. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 5, characterized in that the moving clamp block (406) and the locking groove (404) are both provided with anti-slip pads. 8. The modular and reconfigurable multi-joint orthopedic external fixation frame according to embodiment 1, characterized in that the fixation pin (408) can be any one of Kirschner pins or screws. CONCLUSIONS 1. A modular and reconfigurable orthopedic external multi-joint fixation frame, characterized by the fact that it includes: a shoulder construction (1), where the shoulder construction (1) is configured to provide a curved fixation position; a corner construction (2), where the corner construction (2) is at the front of the shoulder construction (1) is located and is configured to to provide connection support at various angles; a support structure (3), where the support structure (3) on the corner structure (2) is fitted and configured to provide a fixed position; an adjustable mechanism (4), where the adjustable mechanism (4) on the support structure (3) has been installed and is configured to a linear to provide a fixation position; and a fixation pin (408), where the fixation pin (408) is attached to the adjustable construction (4) and the shoulder construction (1) and is used for connection with the bone. 2. The modular and reconfigurable orthopedic external multi-joint fixation frame according to claim 1, characterized because the shoulder construction (1) includes a shoulder shell (101), where the shoulder scale (101) has a curved section (1011) and a connecting shell (1012) includes, where the curved part (1011) The uniform is equipped with attachment points (102), where the fastening points (102) are equipped with locking sleeves (103); the locking sleeves (103) are configured to the internal fixing pins (408) to lock by turning their own screws. 3. The modular and reconfigurable orthopedic external multi-joint fixation frame according to claim 2, characterized because the angle construction (2) includes a longitudinal screw rod (201), where the upper part of the longitudinal screw rod (201) is fixed is connected to a connecting shaft (203), the connecting shaft (203) rotatably connected to a transverse screw rod (206), the longitudinal screw rod (201) and the transverse screw rod (206) are connected to each other by means of positioning nuts (202), the connecting shaft (203) is firmly connected to a fixing disc (204), the fixing disc (204) is evenly provided with adjustment holes (205) all around the circumference, the transverse screw rod (206) is equipped with a locking platform (207), the locking platform (207) is fixed connected to the fixing disc (204) by means of the adjustment holes (205) by means of locking elements (208); the fixing disc (204) is permanently attached to the connecting scale (1012). 4. The modular and reconfigurable orthopedic external multi-joint fixation frame according to claim 3, characterized because the support structure (3) is an integrally fixed curved plate (301), a straight-edged plate (302) and a counterplate (304) includes, where the curved plate (301) and the straight-edged plate (302) are provided with support holes (303); both the longitudinal screw rod (201) if the transverse screw rod (206) can pass through the counterplate (304) to walk. 5. The modular and reconfigurable orthopedic external multi-joint fixation frame according to claim 1, characterized because the adjustment device (4) includes an adjustment rod (402), whereby the lower part of the adjustment rod (402) with thread is connected with an adjustable nut (401), the upper part of the adjustment rod (402) is fixedly connected to a locking plate (403), the locking plate (403) is evenly provided with card slots (4031) around the circumference, the upper part of the adjustment rod (402) rotatable is connected to an adjustable sleeve frame (405) by means of a pivot shaft (4041), the adjustable sleeve frame (405) is equipped with a locking groove (404), the upper part of the adjustment sleeve frame (405) is equipped with a movable groove (410), the adjustable sleeve frame (405) is threaded and connected to a clamping screw (407), and a movable clamping block (406) is fitted in the adjustable sleeve frame (405), where the movable clamp block (406) is fixed to a locking pin (409), where the upper part of the locking pin (409) slides into the movable groove (410), and the clamping screw (407) rotates into the movable clamping block (406); by tightening the clamping screw (407), the internal fixing pin (408) can be adjusted. be locked. 6. The modular and reconfigurable orthopedic external multi-joint fixation frame according to claim 3, characterized because the longitudinal screw rod (201) and the transverse screw rod (206) both present in a quantity of two. 7. The modular and reconfigurable orthopedic external Multi-joint tie frame in accordance with claim 5, characterized because the movable clamping block (406) and the locking groove (404) They are equipped with anti-slip pads. 8. The modular and reconfigurable orthopedic external Multi-jointed tie frame according to claim 1, characterized so that the fixation pin (408) can be any Kirschner pin or screw . Fig.1

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