CN108378911A - A kind of hybrid external fixator based on needle flexible modulation - Google Patents

Abstract

A hybrid external fixator based on flexible adjustment of needles can be applied in the field of orthopedic surgery. The ring is connected with the fixed rod through the fixed rod clamp, and the ring can be adjusted in the longitudinal direction through the fixed rod. The ring fixed wire clip and the ring fixed pin clip are connected with the ring, which can realize the fixation of the humerus at any angle in the ring. The ring fixed pin clip can be The tibial joint can be fixed at any angle in the ring, and the position adjustment and positioning can be realized along the longitudinal direction of the fixing rod. The double-needle clip and single-needle clip mainly realize the fixation of the tibia, and can realize 360-degree angle adjustment around the fixation rod and fixation along the longitudinal direction of the fixation rod. The phalanx pin realizes 360-degree angle adjustment around the fixing rod and fixation in the longitudinal direction. The invention provides a hybrid external fixator with a large adjustment range and great flexibility, which can be applied to multiple parts such as the humerus, tibia and phalanx at the same time, and simultaneously solves the problem of flexible adjustment and precise positioning of the needle, and has a simple structure and low cost. .

Description

A Hybrid External Fixator Based on Needle Flexible Adjustment

technical field

The invention belongs to the field of orthopedic rehabilitation medical equipment, and in particular relates to a flexible-adjustable hybrid external fixator device based on needles.

Background technique

Human lower extremity fractures are a common orthopedic disease with a large number. The traditional method of treating this disease is immobilization with plaster, traction or open reduction and internal fixation. With the development of external fixation technology, external fixation bracket has become one of the more important tools in orthopedic treatment and has been widely used. , they basically hold the broken bones tightly together. These external fixators are not only a relatively rough splint or cast, but also include a variety of more modern and complex external fixation systems, including Llizarow ring external fixator, tubular external fixator, and unilateral powered unilateral external fixator. fixer etc. These commonly used fixator systems usually include a fixation rod for connecting and fixing multiple Kirschner wires inserted into the bone, each of which is fixed in a pin clip, and each clip is mounted on the fixation rod, However, each needle clamp has only a fixed angle relative to one Kirschner wire, so when the fixer system needs to use multiple Kirschner wires, the multiple Kirschner wires in one needle clamp limit the degree of freedom and cannot be flexibly adjusted. position of the needle.

With the improvement of the performance requirements of the external fixator, these problems of the above-mentioned fixator system urgently need to be solved. Flexible adjustment of the needle relative to the bone has always been a concern of the surgeon. In traditional external fixator systems, the flexible adjustment and precise positioning of the needles is very difficult and time-consuming, and is critical. In some cases, however, an optimal adjustment position of the needle is not possible due to limitations in the adjustment ability of the needle relative to the needle holder. In view of the above-mentioned deficiencies in the prior art and related problems, it is very meaningful to design an external fixator device based on needles that is fully adjustable in position and angle and is easy to use.

Contents of the invention

The technical problem to be solved by the present invention is to provide a hybrid external fixator that has a large needle adjustment range and great flexibility and can be applied to multiple parts such as the humerus, tibia, and phalanges at the same time, to solve the problem of flexible adjustment and precise positioning of the needle problem, and the structure is simple and easy to use. The external fixator is mainly composed of rings, ring fixing wire clips, ring fixing needle clips, fixing rods, fixing rod clips, single needle clips, double needle clips, and phalanx needle clips to achieve precise positioning and flexible adjustment of needles in various parts of the lower limbs. .

To achieve the above object, the present invention adopts the following technical solutions:

A needle-based flexible adjustable hybrid fixator, including thread (2), threaded needle (28), needle (32), ring (6), phalanx pin (10), fixation rod (1), fixation rod clamp ( 3), ring fixing wire clip (4), ring fixing needle clip (5), single needle clip (7), double needle clip (8) and phalanx needle clip (9): the ring (6) passes through the fixing rod clip (3) Connected to the fixed rod (1), the ring (3) can be adjusted in the longitudinal direction on the fixed rod (1), the ring fixed wire clip (4) and the ring fixed pin clip (5) are connected to the ring (6) , the thread (2) can realize the positioning of the humerus at any angle in the ring (6) through the ring fixing wire clip (4), and the threaded needle (28) can realize the arbitrary angle positioning of the tibial joint in the ring (6) through the ring fixing pin clip (5). The angle can be fixed, and the adjustment and positioning in the longitudinal direction can be realized along the fixing rod (1); The rod (1) is fixed in the longitudinal direction; the single needle clip (7) can realize the adjustment of any position and angle of the needle (32) along the fixed rod (1) without interference from other needles; the phalanx needle (10) passes through the phalanx The needle clamp (9) can realize 360-degree rotation adjustment around the fixing rod (1) and fixation in the longitudinal direction according to the position of the phalanx.

Further, the fixed rod clamp (3) includes a lock nut (11), a fixed rod ball sleeve (12), a fixed rod clamp spring (13), a fixed rod clamp frame (14), a ring clamp fastening screw (15 ); the fixed rod clamp frame (14) is fixed on the middle part of the upper surface of the ring (6) by the ring clamp fastening screw (15) and the ring groove (6-1); the fixed rod (1) is locked by locking Nut (11), fixed rod ball sleeve (12), fixed rod jumper (13) are connected with fixed rod clip frame (14), fixed rod jumper (13) is connected with fixed rod jumper groove (13-1), The fixed rod (1) is inserted in the fixed rod snap ring groove (13-1), the fixed rod ball sleeve (12) is connected with the inner side of the fixed rod jump ring (13), and the fixed rod (1) passes through the fixed rod ball sleeve hexagonal hole ( 12-5) is connected with the fixed rod ball sleeve (12); when the position of the fixed rod (1) relative to the fixed rod clamp (14) is determined, the fixed rod clamp (14) is connected to the fixed rod through the lock nut (11) Rod (1) is fixed.

Further, there are four ring fixing clamps (4), two wires (2), each wire (2) is respectively fixed by two ring fixing clamps (4), and the two ring fixing clamps (4 ) are respectively positioned close to the ports on both sides of the ring (6), and the other two ring fixing clamps (4) are positioned on the inner side of the ring (6) and on both sides of the fixing rod (1) according to the position of the bone. The wire (2) is connected to the ring fixing clamp (4) on one side of the ring (6) and the ring fixing clamp (4) opposite it, and the other wire (2) is connected to the other side of the ring (6) The ring clamp (4) of the port and the ring clamp (4) opposite it are connected. The connection mode of the four ring fixing clamps (4) and the two wires (2) is the same. The ring fixed wire clamp (4) includes a wire (2), a ring fixed wire clamp frame (16), a rotating base (17), a ring circlip (18), a wire ring sleeve (19), and a fastening nut (20) , hexagonal connector (21), adjusting screw (22), end nut (23) and stop pin (24): the fastening nut (20) passes through the ring circlip (18), the wire ball sleeve (19), The hexagonal connector (21) is fixed together with the rotating base (17), the ring circlip (18) is connected with the rotating base (17), the wire ring sleeve (19) is connected with the inner side of the ring circlip (18), and the hexagonal connector (21) Connect the hexagonal hole (19-1) of the wire ball sleeve with the wire ball sleeve (19), the adjustment screw (22) is connected with the hexagonal connector (21) through the internal thread (21-1) of the hexagonal connector, and fasten The nut (20) is fixed on the surface of the rotating base (17) through the ring circlip (18) and the wire ring sleeve (19), the wire (2) is connected with the adjustment screw (22) through the inner hole of the adjustment screw (22-1), and the end The nut (23) is connected with the surface of the adjusting screw (22) through the wire (2), and the stop pin (24) is fixedly connected with the wire (2) through the end nut (23).

Further, the rotating base (17) is fixedly connected to the ring fixed wire clamp frame (16) through the rotating base body screw (25), and the ring fixed wire clamp frame (16) is connected to the ring (6) through the wire clamp screw (26) .

Further, there are two ring fixing needle clips (5), two threaded needles (28), installed on the lower surface of the ring (6) and both sides of the fixing rod (1), each ring fixing needle clip ( 5) Connect a threaded needle (28), and the connection mode of the two ring fixing needle clamps (5) and the threaded needle (28) is the same. The ring fixed needle clamp (5) includes a turntable base (27), a threaded needle (28), a ring circlip (18), a needle ring sleeve (45), a ball sleeve connector (29), a fastening nut (20) , stop nut (30) and protective cap (31): the turntable base body (27) is connected to the position of the needle thread (28-1) through the needle thread (28-1) and the threaded needle (28), the turntable base body ( 27) Connect with the ring circlip (18) through the spring groove (27-1), the needle ring sleeve (45) is connected with the turntable base (27) through the ring circlip (18), and the ball sleeve connector (29) passes through the needle ring The sleeve hexagonal hole (45-1) is connected with the needle ball sleeve (45), and the threaded needle (28) is connected with the ball sleeve connector ( 29) connection, the fastening nut (20) is fixedly connected with the turntable base (27) through the ring circlip (18) and the needle ring sleeve (45), and the stop nut (30) is connected with the fastening thread through the needle thread (28-1) The surface of nut (20) is connected, and protective cap (31) is connected with stop nut (30) by needle thread (28-1), prevents the loosening of threaded needle (28).

Further, the double-needle clamp (8) is positioned on the fixed rod (1), located on the underside of the single-needle clamp (7), and includes a needle (32), a double-needle clamp frame (33), an anti-loosening spring (34 ), needle ball sleeve (36), needle clamp fastening nut (35): the needle (32) is connected with the double needle clamp frame (33) through the double needle clamp frame hole (33-1), and the anti-loosening spring (34 ) is connected with the surface of the double-needle clamp frame (33), the needle ball sleeve (36) is connected with the double-needle clamp frame (33) through the inner side of the anti-loosening spring (34), and the needle (32) passes through the needle ball sleeve hole (36- 1) Connect with the needle ball sleeve (36), and the needle clamp fastening nut (35) is fixedly connected with the double-needle clamp frame (33) through the anti-loosening spring (34) and the needle ball sleeve (36).

Further, the double-needle clamp frame (33) passes through the upper fixed rod ball sleeve (12-1), the upper fixed rod clip spring (13-3), the upper lock nut (11-1), the lower side The fixed rod jumper (13-2), the lower fixed rod ball sleeve (12-3) and the lower side lock nut (11-2) are fixedly connected with the fixed rod (1): the lower fixed rod ball sleeve ( 12-3) Connect with the fixed rod (1) through the hexagon hole (12-4) of the lower fixed rod ball sleeve, and connect the lower fixed rod clamp spring (13-2) with the lower fixed rod ball sleeve (12-3) The lower surface of the double-needle clamp frame (33) is connected, and the lower locking nut (11-2) secures the double-needle clamp through the lower fixed rod snap spring (13-2) and the lower fixed rod ball sleeve (12-3). Frame (33) is locked on the fixed rod (1); similarly, the upper side fixed rod ball sleeve (12-1) is connected with the fixed rod (1) through the upper side fixed rod ball sleeve hexagonal hole (12-2), The upper fixed rod ball sleeve (12-1) is connected to the upper surface of the double-needle clamp frame (33) through the upper fixed rod clip spring (13-3), and the upper lock nut (11-1) is fixed through the upper side Rod ball sleeve (12-1) and upper side fixed rod jump ring (13-3) fixed rod (1) is fixed on the upper surface of double-needle clip frame (33).

Further, the single-needle clamp (7) is connected with the fixed rod (1), and is positioned on the lower side of the upper ring (6) of the double-needle clamp (8), which includes a single-needle clamp frame (37), needle (32), needle ball sleeve (36), anti-loosening spring (34) and needle clamp fastening nut (35): described needle ball sleeve (36) is connected with the surface of single-needle clamp frame (37), and needle (32 ) is connected with the single needle clamp frame (37) through the needle ball sleeve (36), the anti-loosening spring (34) is connected with the single needle clamp frame (37) through the needle ball sleeve (36) outside, and the needle (32) is in the needle ball sleeve There is an angle adjustment range of 30° in (36), after adjusting the angle position of the needle, the needle clamp fastening nut (35) locks the needle (32) on the single needle through the needle ball sleeve (36) and the anti-loosening spring (34). on the surface of the needle holder (37).

Further, the connection between the single-needle clamp frame (37) and the fixed rod (1) is the same as the connection between the double-needle clamp frame (33) and the fixed rod (1), and the upper lock nut (11-1) passes through the upper The side fixed rod ball sleeve (12-1), the upper fixed rod clip spring (13-3) are fixedly connected with the upper surface of the single-needle clamp frame (37), and the lower lock nut (11-2) is fixed through the lower side The rod ball sleeve (12-3), the lower side fixed rod jump ring (13-2) are fixedly connected with the lower surface of the single-needle clip frame (37).

Further, the phalanx needle clip (9) is positioned on the lower end of the fixed rod (1) and the underside of the double needle clip (8), including the phalanx needle clamp frame (38), the phalanx needle ball sleeve (44), the phalanx clip Spring (43), phalanx pin lock nut (42) and phalanx pin (10): the phalanx pin (10) is connected with the pinhole (38-2) of the phalanx pin holder, and the phalanx pin ball sleeve (44) passes through the phalanx Pin (10) is connected with the phalanx needle clamp frame (38), and the phalanx needle ball sleeve (44) is connected with the inside of the phalanx jump ring (43), and the phalanx needle locking nut (42) passes through the phalanx needle ball sleeve (44), the phalanx clip Spring (43) is fixedly connected with phalanx pin holder (38).

Further, the phalanx pin holder (38) passes the upper phalanx fastening nut (41-1), the lower phalanx fastening nut (41-2), the upper phalanx ball sleeve (39-1), the lower phalanx ball Cover (39-2), upper side phalanx spring (40-1), lower side phalanx spring (40-2) are fixedly connected with fixing bar (1): said fixing bar (1) passes through phalanx pin holder hole (38 -1)

It is connected with the phalanx clamp frame (38), and the upper side phalanx ball sleeve (39-1) and the lower side phalanx ball sleeve (39-2) are respectively connected with the upper and lower sides of the phalanx pin clamp frame (38) through the fixing rod (1) , the upper phalanx spring (40-1), the lower phalanx spring (40-2) are respectively connected with the inner sides of the upper phalanx ball sleeve (39-1) and the lower phalanx ball sleeve (39-2), and the upper phalanx The fastening nut (41-1) and the lower phalanx fastening nut (41-2) respectively fix the fixing rod (1) on the phalanx through the upper phalanx spring (40-1) and the lower phalanx spring (40-2). The upper and lower sides of the needle clip frame (38).

Due to the adoption of the above technical solutions, the present invention innovatively designs a hybrid external fixator that can fully meet the rehabilitation needs of lower extremity fractures, has a simple structure, is convenient to use, occupies a small volume, and has low manufacturing costs. It not only ensures the simultaneous fixation function of the external fixator on the humerus, tibia and phalanx of the lower limb of the human body, but also ensures the flexible positioning of the needle in various parts of the lower limb. It better solves the shortcoming that the pins on the external fixator in the current market cannot be positioned flexibly, and improves the rigidity characteristics of the external fixator well.

A hybrid external fixator based on needle flexible adjustment of the present invention will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of the overall structure of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 2 is a top view of a flexible needle-based hybrid external fixator according to the present invention;

Fig. 3 is a side view of a hybrid external fixator based on needle flexible adjustment according to the present invention;

Fig. 4 is an exploded schematic view of the fixation rod clip of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 5 is an exploded schematic diagram of a ring fixation clip of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 6 is an exploded schematic diagram of a ring fixation needle clip of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 7 is an exploded schematic diagram of a double-needle clip of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 8 is a schematic diagram of the connection between the double-needle clip and the fixation rod of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 9(a) is a front view of the connection between the single-needle clip and the fixing rod of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 9(b) is a top view of the connection between the single-needle clip and the fixing rod of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 9(c) is a cross-sectional view of a single-needle clip of a hybrid external fixator based on flexible adjustment of needles according to the present invention;

Fig. 10 is an exploded schematic diagram of a phalanx pin clip based on a flexible needle-adjustable hybrid external fixator according to the present invention;

Figure 1—In Figure 10: 1—fixed rod; 2—line; 3—fixed rod clip; 4—ring fixed wire clamp; 5—ring fixed pin clip; Needle clip; 8—double needle clip; 9—phalangeal needle clip; 10—phalangeal needle; 11—lock nut; 11-1—upper side lock nut; 11-2—lower side lock nut; 12—fixing rod Ball sleeve; 12-1—upper fixed rod ball sleeve; 12-2—upper fixed rod ball sleeve hexagonal hole; 12-3—lower fixed rod ball sleeve; 12-4—lower fixed rod ball sleeve hexagonal hole ; 12-5—fixed rod ball sleeve hexagonal hole; 13—fixed rod clip spring; 13-1—fixed rod clip spring groove; 13-2—fixed rod clip spring on the lower side; 13-3—fixed rod clip spring on the upper side ;14—fixed rod clamp frame; 15—ring clamp fastening screw; 16—ring fixed line clamp frame; 17—rotating base; 18—ring circlip; 19—line global sleeve; ; Rotating base screw; 26—clamp screw; 27—turntable base; 27-1—spring groove; 28—thread needle; 28-1—needle thread; 29—ball sleeve connector; 29-1—ball sleeve connector inside Threaded hole; 30—stop nut; 31—protective cap; 32—needle; 33—double needle clamp frame; 33-1—double needle clamp frame hole; 34—locking spring; 35—needle clamp fastening nut; 36 —needle ball sleeve; 36-1—needle ball sleeve hole; 37—single needle clamp frame; 38—toe bone needle clamp frame; 38-1—toe bone needle clamp frame hole; 38-2—toe bone needle clamp frame pinhole; 39 -1—upper phalanx ball sleeve; 39-2—lower phalanx ball sleeve; 40-1—upper phalanx spring; 40-2—lower phalanx spring; 41-1—upper phalanx fastening nut; 41- 2—the fastening nut of the lower phalanx; 42—the lock nut of the phalanx needle; 43—the circlip of the phalanx; 44—the ball sleeve of the phalanx needle; 45—the ball sleeve of the needle;

Detailed ways

As shown in Figures 1-10, a hybrid external fixator based on flexible adjustment of needles, including thread (2), threaded needle (28), needle (32), ring (6), phalanx needle (10), Fixed rod (1), fixed rod clip (3), ring fixed wire clip (4), ring fixed needle clip (5), single needle clip (7), double needle clip (8) and phalanx needle clip (9): Before the operation, first position the rod clamp (3) in the middle of the ring (6): insert the rod clamp (14) into the upper surface of the ring (6), and fasten the screw (15) with the ring clamp The fixed rod clamp frame (14) is installed on the upper surface of the ring (6), according to the insertion position of the humerus, adjust the position of the ring (6) on the fixed rod (1), and tighten the lock nut (11) to fix the ring ( 6) The relative position with the fixed rod (1). During the operation, also according to the position of the humerus and the wire insertion, determine the angles and orientations of the four ring-fixed wire clips (4) on the ring (6), respectively tighten the wire clip screws (26) so that the two ends of the two wires (2) The ring fixing wire clip frame (16) is fixed with the ring (6), and then the four ring fixing wire clips (4) are respectively connected to the corresponding two wires (2), and the four ring fixing wire clips (4) are connected to the corresponding two wires The connection method of the wires (2) is the same: After passing the two wires (2) into the humeral wire hole, adjust the rotating base (17) for precise adjustment, realize the centering of the wire (2) and the insertion port of the humerus, and lock the rotating base The screw (25) keeps the rotating base (17) at the two ends of the line (2) and the ring fixed line clamp frame (16) fixed, and then the line (2) passes through the inner hole of the adjusting screw (22-1) and the adjusting screw (22 ) connection, tighten the fastening nut (20), fix the relative position of the wire (2) and the rotating base (17), then rotate the adjusting screw (22) to further increase the tension of the wire, and the end nut (23) is connected through Adjust the screw (22) and the wire (2), and insert the stop pin (24) on the end nut (23) to prevent the wire (2) from loosening.

As shown in Figures 5 and 6, the use of the ring fixation needle clip (5) is similar to that of the ring fixation wire clip (4), and the positions of the two ring fixation needle clips (5) are positioned according to the position of the upper needle hole of the humerus joint , and insert the corresponding two threaded needles (28) on the joint, and then further adjust the position of the two rings to fix the needle clamp (5) on the ring (6) according to the position of the needle, and also use the locking wire clamp screw ( 26) Lock and fix, then fine-tune, adjust the turntable base (27) and the threaded needle (28) to keep in the center, and tighten the fastening nut (20), so that the threaded needle (28) and the turntable base (27) remain fixed, And then by tightening the stop nut (30) on the needle thread (28-1), further strengthen the fixed connection of the threaded needle (28) and the ring fixing needle clamp (5), increase its rigidity, and finally tighten the threaded needle (28) Tighten the protective cap (31) at the end to prevent the threaded needle (28) from loosening.

As shown in Figure 9 (a-c), first insert the upper end of the tibia into the needle (32) and then determine the longitudinal position of the single-needle clamp frame (37) on the fixation rod (1) and the position around the fixation rod (1) according to the position of the needle insertion. direction angle, so that the needle (32) can be aligned with the pin hole, lock the upper locking nut (11-1) and the lower locking nut (11-2), and fix the single-needle clamp (37) on the On the fixed rod (1); due to the existence of the needle ball sleeve (36), the needle (32) has an adjustment range of 30 degrees, allowing the needle (32) to be finely adjusted in angle on the single needle clamp frame (37), so that The needle (32) is fully centered with the needle insertion hole, which can help reduce the loosening of the needle, relieve pain, and prevent needle tract infection. After the needle (32) is completely centered with the needle insertion hole, tighten the needle clamp fastening nut (35 ) to complete the fixing of the needle (32) on the single-needle clamp frame (37).

As shown in Figure 8, the use of the double-needle clip (8) is similar to that of the single-needle clip (7). The longitudinal position of the fixed rod (1) and the angular direction around the fixed rod (1), after the needle (32) can be aligned with the pin hole, tighten the upper lock nut (11-1) and the lower lock nut (11-2), fix the position of the double-needle clamp frame (33) on the fixed rod (1). Utilize the angle fine-tuning effect of the needle ball sleeve (36), make the needle (32) center with the pinhole, and lock the needle clamp fastening nut (35) so that the needle (32) is fixed on the double needle clamp (8).

As shown in Figure 10, similarly, the pin is inserted in the phalanx and according to the position of the pin insertion of the phalanx, adjust the longitudinal position of the phalanx pin holder (38) on the fixed rod (1), and the circumferential angle around the fixed rod (1) , lock the upper phalanx fastening nut (41-1) and the lower phalanx fastening nut (41-2), fix the position of the phalanx pin holder (38) on the fixing rod (1), and use the phalanx pin ball sleeve The 30 ° adjustment effect of (44) further makes the phalanx pin (10) fully centered with the pin hole, and tightens the phalanx pin lock nut (42), completes the fixing of the phalanx pin (10).

From the above, it can be seen that this flexible needle-based hybrid external fixator can simultaneously fix the humerus, humeral joint, tibia, and phalanx of the human lower limb, and effectively increase the adjustment range and positioning accuracy of the needle. Therefore, the hybrid fixator can effectively realize the rehabilitation of lower limb fractures.

Claims (1)

1. A hybrid external fixator based on flexible needle adjustment, including thread (2), threaded needle (28), needle (32), ring (6), phalanx needle (10), fixation rod (1), fixation Rod clamp (3), ring fixed wire clamp (4), ring fixed needle clamp (5), single needle clamp (7), double needle clamp (8) and phalanx needle clamp (9); The fixed rod clamp (3) includes a lock nut (11), a fixed rod ball sleeve (12), a fixed rod clip spring (13), a fixed rod clamp frame (14), and a ring clamp fastening screw (15); The fixed rod clamp frame (14) is fixed on the middle part of the upper surface of the ring (6) through the ring clamp fastening screw (15) and the ring groove (6-1); the fixed rod (1) is fixed through the lock nut (11 ), the fixed rod ball sleeve (12), the fixed rod jumper (13) are connected with the fixed rod clip frame (14), the fixed rod jumper (13) is connected with the fixed rod jumper groove (13-1), and the fixed rod ( 1) Insert it into the retaining ring groove (13-1) of the retaining rod, the retaining rod ball sleeve (12) is connected with the inner side of the retaining rod retaining spring (13), and the retaining rod (1) passes through the hexagonal hole of the retaining rod ball sleeve (12-5 ) is connected with the fixed rod ball sleeve (12); when the position of the fixed rod (1) relative to the fixed rod clamp (14) is determined, the fixed rod clamp (14) connects the fixed rod (1) through the lock nut (11) )fixed; There are four ring fixing wire clips (4), two wires, each wire is respectively fixed by two ring fixing wire clips (4), and the two ring fixing wire clips (4) are respectively positioned near the ring (6) The other two ring fixing wire clamps (4) are positioned on the inner side of the ring (6) and both sides of the fixing rod (1) according to the position of the bone, and one wire is connected to one side of the ring (6). The ring fixing clamp (4) of the port and the ring fixing clamp (4) opposite it are connected, and the other wire (2) is connected to the ring fixing clamp (4) of the port on the other side of the ring (6) and its opposite side The ring fixed wire clips (4) are connected; the four ring fixed wire clips (4) are connected in the same way as the two wires; the ring fixed wire clips (4) include wires (2), ring fixed wire clip frames (16), rotating base (17), ring circlip (18), cable ring sleeve (19), fastening nut (20), hexagonal connector (21), adjusting screw (22), end nut (23) And the stop pin (24): the fastening nut (20) is fixed together with the rotating base (17) by the ring circlip (18), the wire ball sleeve (19), the hexagonal connector (21), and the ring circlip ( 18) is connected with the rotating base (17), the wire ring sleeve (19) is connected with the inner side of the ring circlip (18), and the hexagonal connector (21) is connected to the wire ring sleeve (19) through the wire ring sleeve hexagonal hole (19-1) ) connection, the adjusting screw (22) is connected with the hexagonal connector (21) through the internal thread (21-1) of the hexagonal connector, and the fastening nut (20) is fixed on the Rotate the surface of the base (17), the wire (2) is connected with the adjustment screw (22) through the inner hole (22-1) of the adjustment screw, and the end nut (23) is connected with the surface of the adjustment screw (22) through the wire (2), The stop pin (24) is fixedly connected with the line (2) through the end nut (23); The rotating base (17) is fixedly connected to the ring fixed wire clamp frame (16) through the rotating base body screw (25), and the ring fixed wire clamp frame (16) is connected to the ring (6) through the wire clamp screw (26); There are two ring fixing pin clips (5) and two threaded needles, which are installed on the lower surface of the ring (6) and both sides of the fixing rod (1), and each ring fixing pin clip is connected with a threaded needle (28) , the connection mode of the two ring-fixed needle clips (5) and the threaded needle (28) is the same; the ring-fixed needle clip (5) includes a turntable base (27), a threaded needle (28), a ring retaining spring (18 ), needle ring sleeve (45), ball sleeve connector (29), fastening nut (20), stop nut (30) and protective cap (31): the turntable base (27) passes through the needle thread (28- 1) The threaded needle (28) is connected to the needle thread (28-1), the turntable base (27) is connected to the ring circlip (18) through the spring groove (27-1), and the needle ball sleeve (45) passes through the ring The jumper (18) is connected with the turntable base (27), the ball socket connector (29) is connected with the needle ball socket (45) through the hexagonal hole (45-1) of the needle ball socket, and the threaded needle (28) passes through the needle thread (28 -1) and the inner threaded hole (29-1) of the ball sleeve connector (29) are connected with the ball sleeve connector (29), and the fastening nut (20) is connected to the turntable base through the ring circlip (18) and the needle ring sleeve (45) (27) Fixed connection, the stop nut (30) is connected with the surface of the fastening nut (20) through the needle thread (28-1), and the protective cap (31) is connected with the stop nut (30) through the needle thread (28-1) ) connection to prevent loosening of the threaded needle (28); The double-needle clamp (8) is connected with the fixed rod (1), and is positioned at the underside of the single-needle clamp (7), including a needle (32), a double-needle clamp frame (33), an anti-loosening spring (34), a needle ball Cover (36), needle clip fastening nut (35): the needle (32) is connected with the double-needle clip frame (33) through the double-needle clip frame hole (33-1), and the anti-loosening spring (34) is connected with the double-needle clip frame The surface of the clamp frame (33) is connected, the needle ball sleeve (36) is connected with the double-needle clamp frame (33) through the inner side of the anti-loosening spring (34), and the needle (32) is connected with the needle ball sleeve hole (36-1) The ball sleeve (36) is connected, and the needle clamp fastening nut (35) is fixedly connected with the double-needle clamp frame (33) by the anti-loosening spring (34) and the needle ball sleeve (36); The double-needle clamp frame (33) passes through the upper side fixed rod ball sleeve (12-1), the upper side fixed rod clip spring (13-3), the upper side lock nut (11-1), the lower side fixed rod clip The spring (13-2), the lower side fixed rod ball sleeve (12-3) and the lower side lock nut (11-2) are fixedly connected with the fixed rod (1): the lower side fixed rod ball sleeve (12-3 ) is connected with the fixed rod (1) through the hexagonal hole (12-4) of the lower fixed rod ball sleeve, and the lower fixed rod clamp spring (13-2) is connected with the double-needle clamp through the lower fixed rod ball sleeve (12-3) The lower surface of the frame (33) is connected, and the lower side lock nut (11-2) is connected to the double-needle clamp frame (33) by the lower side fixed rod jumper (13-2) and the lower side fixed rod ball sleeve (12-3). ) is locked on the fixed rod (1); similarly, the upper fixed rod ball sleeve (12-1) is connected with the fixed rod (1) through the upper fixed rod ball sleeve hexagonal hole (12-2), and the upper side is fixed The rod ball sleeve (12-1) is connected to the upper surface of the double-needle clamp frame (33) through the upper fixed rod clamp spring (13-3), and the upper lock nut (11-1) is passed through the upper fixed rod ball sleeve (12-1) and upper side fixed rod clip spring (13-3) fixed rod (1) is fixed on the upper surface of double-needle clip frame (33); The single-needle clamp (7) is connected with the fixed rod (1), and is positioned on the underside of the upper ring (6) of the double-needle clamp (8), which includes a single-needle clamp frame (37), a needle (32) , needle ball sleeve (36), anti-loosening spring (34) and needle clamp fastening nut (35): the needle ball sleeve (36) is connected with the surface of the single needle clamp frame (37), and the needle (32) passes through the needle The ball sleeve (36) is connected with the single-needle clamp frame (37), and the anti-loosening spring (34) is connected with the single-needle clamp frame (37) through the needle ball sleeve (36) outside, and the needle (32) is in the needle ball sleeve (36) There is an angle adjustment range of 30° in the middle, after adjusting the angle position of the needle, the needle clamp fastening nut (35) locks the needle (32) on the single needle clamp frame through the needle ball sleeve (36) and the anti-loosening spring (34). on the surface of (37); The connection between the single-needle clamp frame (37) and the fixed rod (1) is the same as the connection between the double-needle clamp frame (33) and the fixed rod (1), and the upper side lock nut (11-1) passes through the upper side fixed rod The ball sleeve (12-1), the upper side fixed rod clip spring (13-3) are fixedly connected with the upper surface of the single-needle clamp frame (37), and the lower side lock nut (11-2) passes through the lower side fixed rod ball sleeve (12-3), the lower side fixing rod jumper (13-2) are fixedly connected with the lower surface of the single-needle clip frame (37); The phalanx needle clip (9) is positioned on the lower end of the fixed rod (1) and the underside of the double needle clip (8), and includes a phalanx needle clamp frame (38), a phalanx needle ball sleeve (44), a phalanx spring (43 ), the phalanx pin lock nut (42) and the phalanx pin (10): the phalanx pin (10) is connected with the pinhole of the phalanx clamp frame (38-2), and the phalanx pin ball sleeve (44) passes through the phalanx pin (10 ) is connected with the phalanx pin clamp frame (38), the phalanx pin ball sleeve (44) is connected with the inside of the phalanx snap ring (43), and the phalanx pin lock nut (42) passes through the phalanx pin ball sleeve (44), the phalanx snap ring (43 ) is fixedly connected with the phalanx pin holder (38); Described phalanx pin frame (38) passes upper side phalanx fastening nut (41-1), lower side phalanx fastening nut (41-2), upper side phalanx ball sleeve (39-1), lower side phalanx ball sleeve (39-2), the upper side phalanx spring (40-1), the lower side phalanx spring (40-2) are fixedly connected with the fixed rod (1): the fixed rod (1) passes through the phalanx pin holder hole (38- 1) Connect with the phalanx clamp frame (38), the upper side phalanx ball sleeve (39-1) and the lower side phalanx ball sleeve (39-2) respectively connect with the upper and lower sides of the phalanx clamp frame (38) through the fixing rod (1) Both sides are connected, the upper phalanx spring (40-1) and the lower phalanx spring (40-2) are respectively connected with the inner sides of the upper phalanx ball sleeve (39-1) and the lower phalanx ball sleeve (39-2). The side phalanx fastening nut (41-1) and the lower phalanx fastening nut (41-2) respectively fix the fixing rod (1) through the upper phalanx spring (40-1) and the lower phalanx spring (40-2) On the upper and lower sides of the phalanx clamp frame (38).