CN215914859U

CN215914859U - Clavicle fracture percutaneous reduction distraction pressurization fixing device

Info

Publication number: CN215914859U
Application number: CN202122223581.3U
Authority: CN
Inventors: 林焱斌; 赖志敏; 叶友友; 沈兆庆; 龙强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-01
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a clavicle fracture percutaneous reduction, distraction and pressurization fixing device which comprises a reduction fixing plate, wherein the reduction fixing plate is arranged on the body surface and is matched with the physiological radian of a clavicle, an arc-shaped sliding groove is formed in the reduction fixing plate, a plurality of screw components are connected in the arc-shaped sliding groove, each screw component comprises a screw body and a locking nut, each screw body comprises an upper screw rod part, a lower screw rod part and a step part positioned between the upper screw rod part and the lower screw rod part, the locking nut is matched and screwed on the upper screw rod part and is matched with the step part to lock the screw body on the reduction fixing plate, and a distraction pressurization fine adjustment mechanism which is positioned outside the body and is adjustable in length is connected between two adjacent screw components close to the fracture end. When the utility model is used, only a plurality of small incisions are respectively opened at two ends of the clavicle fracture, and a plurality of screw components locked into the clavicle are arranged in parallel, thereby well realizing minimally invasive surgery, reducing periosteum stripping, protecting blood circulation and reducing the occurrence of fracture nonunion by percutaneous external fixation.

Description

Clavicle fracture percutaneous reduction distraction pressurization fixing device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a clavicle fracture percutaneous reduction distraction pressurization fixing device.

Background

The clavicle is a long tubular bone which is firstly ossified by the human body, and forms two physiological bends in the development process, wherein the outer section is backward convex, and the inner section is forward convex, and the clavicle is shaped like a horizontal S lying in front of the top of the thorax. The outer 1/3 is flat (flatter forward) and the inner 1/3 is approximately triangular (flatter upward). The whole length is positioned under the skin, the proximal end and the sternum stem form a sternoclavicular joint, and the distal end and the acromion form an acromioclavicular joint. Is the only bony structure connecting the scapular band and the sternum. Clavicle fracture (fracture of the clavicle) occurs well in adolescents and children, and the incidence rate accounts for 5% -10% of the total fracture. It is usually caused by indirect violence. When the shoulder falls down, the shoulder touches the ground, the force is transmitted to the clavicle, and the oblique fracture occurs. Also, when the hand or elbow touches the ground, violence is transmitted to the clavicle through the shoulder, and oblique or transverse fractures occur.

The current treatment scheme for clavicle fracture is as follows: the operation treatment and the conservative treatment, the operation treatment comprises two main aspects of cutting the reduction steel plate internal fixation and the intramedullary fixation system. The surgical treatment steel plate can restore the anatomical position of the clavicle to the maximum extent by internal fixation, improve early pain and facilitate early functional rehabilitation exercise and later clavicle appearance restoration. However, the operation treatment still has the defects that the stripping is serious in the operation, the blood supply is damaged, and the healing of fracture ends in the later period is influenced; irregular internal fixation operation and the like affect the healing of fractured ends to generate bone nonunion; the cut scar formed by cutting and resetting affects the beauty; most patients are taken out in the second period of the period, so that the social and economic burden is increased. The intramedullary fixation system is difficult to close and reset in the operation, the fracture end is often required to be cut for resetting, the soft tissue stripping is increased, the minimally invasive in an absolute strict sense is difficult to achieve, the clavicle intramedullary fixation system is not absolutely and stably fixed, the probability of bone nonunion in the later period is high, and the intramedullary fixation system is often used as an auxiliary means for fixing a steel plate.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a clavicle fracture percutaneous reduction, distraction and pressurization fixing device, which mainly solves the technical problem that the clavicle fracture reduction and fixation system in the prior art is difficult to realize minimally invasive surgery.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a clavicle fracture percutaneous reduction distraction pressurization fixing device comprises a reduction fixing plate which is arranged on the body surface and matched with the physiological radian of a clavicle, an arc chute which is arranged along the length direction and penetrates through the upper surface and the lower surface of the reduction fixing plate is arranged in the reduction fixing plate, a plurality of screw components are connected in the arc chute, each screw component comprises a screw body and a locking nut, each screw body comprises an upper screw rod part, a lower screw rod part and a step part which is positioned between the upper screw rod part and the lower screw rod part, the upper screw rod part of each screw body is configured to be capable of being inserted into the arc chute from bottom to top in a matching manner and transversely slides along the arc chute, the locking nut is matched and screwed on the upper screw rod part and mutually matched with the step part to form a tightening positioning structure so as to lock the screw body on the reduction fixing plate, a distraction pressurization fine adjustment mechanism which is adjustable in length and positioned outside is connected between two adjacent screw components close to the end of the clavicle, two ends of the distraction pressurization fine adjustment mechanism are respectively and movably connected to two adjacent screw components close to the fracture end, so that distraction and pressurization fine adjustment correction of the position of the far and near ends of the clavicle can be carried out from the outside of the body through the distraction pressurization fine adjustment mechanism.

Furthermore, the spreading and pressurizing fine adjustment mechanism comprises a cylinder part and a telescopic rod part telescopically sleeved in the cylinder part, the telescopic rod part is configured to be capable of extending inwards and outwards relative to the cylinder part only through the rotation prevention limit of the rotation prevention limit structure, a first sleeving part is arranged on the outer side end of the telescopic rod part, a sleeving hole capable of being matched and sleeved at the upper end of the upper screw rod part of one screw body in two adjacent screw assemblies close to the fracture end is formed in the first sleeving part, the first sleeving part is fastened and locked with the upper end of the upper screw rod part through a first locking screw locked into the upper end of the upper screw rod part, a second sleeving part is arranged on the outer side end far away from the first sleeving part, a sleeving hole capable of being matched and sleeved at the upper end of the upper screw rod part of the other screw body is formed in the second sleeving part, and the second sleeving part is fastened and locked with the upper end of the other upper screw rod part through a second locking screw locked into the upper end of the other screw body, the telescopic rod part is provided with an external thread part, the cylinder part is movably connected with an adjusting knob capable of axially rotating relative to the cylinder part, the adjusting knob is internally provided with an internal thread part matched with the external thread part on the telescopic rod part, and the adjusting knob is connected with the external thread part through the internal thread part in a matching threaded manner, so that the adjusting knob can drive the telescopic rod part to internally and externally stretch relative to the cylinder part to adjust the length by rotating the adjusting knob.

Furthermore, limiting long grooves distributed along the length direction are formed in the peripheral wall of the cylinder part, a limiting pin connected to the inner side end of the telescopic rod part is arranged in each limiting long groove, and an anti-rotation limiting structure is formed by matching the limiting pin with the limiting long grooves.

Furthermore, be provided with on the section of thick bamboo section perisporium and mutually support with spacing pin and form the scale of length adjustment reading indication structure.

Further, adjust knob adaptation cup joints on the inboard end that second cup joint portion was kept away from to section of thick bamboo portion, and has served and seted up an annular groove on the inboard of section of thick bamboo portion, is connected with a fixed pin who corresponds the setting with the annular groove on the adjust knob, and adjust knob links together with section of thick bamboo portion through the location fit of fixed pin and annular groove.

Further, the screw body is of a hollow screw structure.

Furthermore, the middle position of the reset fixing plate is provided with a connecting rib part for reinforcement, and the arc-shaped sliding groove is separated by the connecting rib part to form a symmetrical two-section structure.

Furthermore, two sets of screw assemblies are respectively arranged in each section of the sliding chute part of the arc-shaped sliding chute.

Furthermore, the upper screw part of the screw body is provided with two anti-rotation limiting surfaces which are oppositely arranged and enable the screw body to only transversely slide in the arc-shaped sliding groove and cannot rotate.

Furthermore, the upper surface and/or the lower surface of the reset fixing plate are/is provided with first anti-slip teeth.

Furthermore, a second anti-skid tooth is arranged on the step part of the screw body.

The technical scheme has the following advantages or beneficial effects:

in the percutaneous reduction, distraction and pressurization fixing device for clavicle fracture, the appearance of the reduction fixing plate is matched with the physiological radian of the clavicle, the anatomical reduction of the clavicle can be realized, the reduction loss caused by axial rotation after the reduction is avoided, meanwhile, a plurality of screw components capable of being locked on the clavicle are arranged in the arc-shaped sliding chute of the reduction fixing plate, the lower part of each screw component is locked in the clavicle, the upper part of each screw component is mutually matched with the step part through the locking nut to form a fastening and fixing structure so as to lock the screw body on the reduction fixing plate, and a distraction, pressurization and fine adjustment mechanism which is adjustable in length and is positioned outside the body is connected between two adjacent screw components close to the fracture end, therefore, when in use, only a plurality of small incisions are respectively opened at the two ends of the clavicle fracture, and a plurality of screw components locked in the clavicle are arranged, minimally invasive surgery can be well realized, and the peeling of the periosteum can be reduced by percutaneous external fixation, blood circulation is protected, and the occurrence of fracture nonunion is reduced; the reduction accessible of clavicle fracture end is close to two adjacent screw subassemblies cooperation connection of fracture end and is carrying out pulling and drawing of fracture end around and upper and lower position and restore to the throne at external distraction pressurization fine-tuning, realize the distraction and the pressurization of the distal and proximal position of clavicle, and then reach and do not cut the fracture end and can realize the close anatomy of fracture end effect that resets, reduce patient's pain, reduce the soft tissue and peel off, reduce the deformity healing incidence, improve the operation scar, the bone non-union incidence has been reduced. And the mode that the fixed plate resets and strut the external setting of pressurization fine-tuning makes the later stage only need the outpatient service to demolish each screw subassembly, has avoided the secondary to get the internal fixation steel sheet, is favorable to alleviateing patient's operation pain and economic burden.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic perspective view of another embodiment of the present invention.

Fig. 3 is an exploded perspective view of the screw assembly and the reduction fixation plate according to the embodiment of the present invention.

Fig. 4 is an exploded perspective view of the distraction pressure fine adjustment mechanism according to the embodiment of the present invention.

Fig. 5 is a structural sectional view of an embodiment of the present invention.

FIG. 6 is a diagram illustrating a state of the reset key according to an embodiment of the present invention.

Description of reference numerals:

1. the reset fixing plate comprises a reset fixing plate, 2, a screw assembly, 3, a distraction pressurization fine adjustment mechanism, 4, reset pliers, 11, an arc-shaped sliding groove, 12, a connecting rib part, 13, first anti-skidding teeth, 21, a screw body, 22, a locking nut, 31, a barrel part, 32, a telescopic rod part, 33, a first locking screw, 34, a second locking screw, 35, an adjusting knob, 36, a limiting pin, 211, an upper screw part, 212, a lower screw part, 213, a step part, 311, a second sleeving part, 312, a limiting long groove, 313, a graduated scale, 314, an annular groove, 321, a first sleeving part, 322, an external screw thread part, 351, an internal thread part, 352, a fixing pin, 2111, an anti-rotation limiting anti-skidding surface, 2131 and second teeth.

Detailed Description

The utility model is further described with reference to the following figures and examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 6, an embodiment of the present invention provides a clavicle fracture percutaneous reduction distraction compression fixation device, which includes a reduction fixation plate 1 disposed on a body surface and adapted to a physiological curvature of a clavicle, an arc chute 11 disposed in the reduction fixation plate 1 along a length direction and penetrating through an upper surface and a lower surface of the reduction fixation plate 1, a plurality of screw assemblies 2 connected to the arc chute 11, each screw assembly 2 including a screw body 21 and a locking nut 22, the screw body 21 including an upper screw portion 211, a lower screw portion 212, and a step portion 213 disposed between the upper screw portion 211 and the lower screw portion 212, the upper screw portion 211 of the screw body 21 being configured to be inserted into the arc chute 11 from bottom to top and slide along the arc chute 11, the locking nut 22 being adapted to be screwed onto the upper screw portion 211 and cooperating with the step portion 213 to form a fastening position structure to lock the screw body 21 onto the reduction fixation plate 1, an opening and pressurizing fine adjustment mechanism 3 which is adjustable in length and located outside the body is connected between the two adjacent screw components 2 close to the fracture end, and two ends of the opening and pressurizing fine adjustment mechanism 3 are respectively and movably connected to the two adjacent screw components 2 close to the fracture end, so that the opening and pressurizing fine adjustment correction of the position of the clavicle far and near ends can be carried out outside the body through the opening and pressurizing fine adjustment mechanism 3. It can be understood that, in this embodiment, the shape of the reduction fixing plate 1 is adapted to the physiological curvature of the clavicle, so as to realize anatomical reduction of the clavicle, and avoid loss of reduction due to axial rotation after reduction, meanwhile, a plurality of screw assemblies 2 capable of being locked into the clavicle are arranged in the arc-shaped chute 11 of the reduction fixing plate 1, the lower part of each screw assembly 2 is locked into the clavicle, and the upper part is mutually matched with the step part 213 through the locking nut 22 to form a fastening position structure to lock the screw body 21 on the reduction fixing plate 1, and a distraction pressurization fine adjustment mechanism 3 which is adjustable in length and is positioned outside the body is connected between two adjacent screw assemblies 2 close to the fracture end, so that, when in use, only a plurality of small incisions are respectively opened at the two ends of the clavicle fracture, and a plurality of screw assemblies 2 locked into the clavicle are arranged, so as to realize minimally invasive surgery well, and the periosteum peeling off can be reduced through external fixation on the body surface, blood circulation is protected, and the occurrence of fracture nonunion is reduced; the reduction accessible of clavicle fracture end is close to two adjacent screw assembly 2 cooperation connection external strutting pressurization fine-tuning 3 and is carried out the front and back of fracture end and carry out carrying of upper and lower position and reset, realize the strutting and the pressurization of the distal and proximal position of clavicle, and then reach and do not cut the fracture end and can realize the effect that the nearly anatomy of fracture end resets, reduce patient's pain, reduce the soft tissue and peel off, reduce the deformity healing incidence, improve the operation scar, the bone non-union incidence has been reduced. And the mode that the fixed plate 1 resets and 3 external settings of pressurization fine-tuning struts makes the later stage only need the outpatient service to demolish each screw subassembly 2, has avoided the secondary to get the internal fixation steel sheet, is favorable to alleviateing patient's operation pain and economic burden.

Referring to fig. 1 to 5, in a preferred embodiment, the spreading and pressurizing fine adjustment mechanism 3 includes a barrel 31 and a telescopic rod 32 telescopically inserted into the barrel 31, the telescopic rod 32 is configured to be capable of extending inward and outward relative to the barrel 31 only by the rotation-proof limitation of the rotation-proof limiting structure, a first insertion portion 321 is disposed on the outer end of the telescopic rod 32, a first insertion portion 321 is disposed on the first insertion portion 321, a sleeve hole is disposed on the upper end of an upper screw rod 211 of one screw body 21 of two adjacent screw assemblies 2 close to the fracture end, the first insertion portion 321 is fastened and locked with the upper end of the upper screw rod 211 by a first locking screw 33 locked into the upper end of the upper screw rod 211, a second insertion portion 311 is disposed on the outer end of the barrel 31 far from the first insertion portion 321, a sleeve hole is disposed on the second insertion portion 311, the second insertion portion 311 is disposed on the upper end of the upper screw rod 211 of the other screw body 21, the second engaging portion 311 is fastened and locked with the upper end of the other upper screw portion 211 by a second locking screw 34 locked into the upper end of the other screw body 21, the telescopic rod portion 32 is provided with an external thread portion 322, the cylinder portion 31 is movably connected with an adjusting knob 35 capable of axially rotating relative to the cylinder portion 31, the adjusting knob 35 is provided with an internal thread portion 351 matched with the external thread portion 322 on the telescopic rod portion 32, and the adjusting knob 35 is connected with the external thread portion 322 through the internal thread portion 351 in a matching threaded manner, so that the telescopic rod portion 32 can be driven to extend and retract relative to the inside and outside of the cylinder portion 31 by rotating the adjusting knob 35 to adjust the length. It can be understood that, when using, can install earlier and reset fixed plate 1 and each screw subassembly 2, then pressurize or strut with the help of pincers 4 that reset to two adjacent screw subassemblies 2 that are close to the fracture end, will strut pressurization fine-tuning 3 and install after that, screw adjust knob 35 back, remove pincers 4 that reset again, follow-up can finely tune the correction according to the actual recovery condition of patient, only need can satisfy clinical demand through the regulation of strutting pressurization fine-tuning 3, help the patient to recover health as soon as possible.

Referring to fig. 4, in a preferred embodiment, a limiting long groove 312 is formed on a circumferential wall of the cylinder 31 and arranged along a length direction, a limiting pin 36 connected to an inner end of the telescopic rod 32 is disposed in the limiting long groove 312, and an anti-rotation limiting structure is formed by the cooperation of the limiting pin 36 and the limiting long groove 312. However, it should be understood by those skilled in the art that in other embodiments, the prevention function between the telescopic rod portion 32 and the barrel portion 31 can be achieved by other limit-preventing structures, and is not limited to the specific embodiments disclosed in the present embodiment.

Referring to fig. 4, in a preferred embodiment, a graduated scale 313 is disposed on the peripheral wall of the cylinder 31 and cooperates with the limit pin 36 to form a length adjustment reading indication structure.

Referring to fig. 4, in a preferred embodiment, the adjusting knob 35 is adapted to be sleeved on an inner side end of the cylinder portion 31 far away from the second sleeved portion 311, an annular groove 314 is formed on the inner side end of the cylinder portion 31, a fixing pin 352 corresponding to the annular groove 314 is connected to the adjusting knob 35, and the adjusting knob 35 is connected to the cylinder portion 31 through the positioning fit of the fixing pin 352 and the annular groove 314.

Referring to fig. 5, in a preferred embodiment, the screw body 21 is a hollow nail structure. In the operation, the screw body 21 can be used with a guide pin, so that the accuracy and the convenience of the operation are improved.

Referring to fig. 1, in a preferred embodiment, a connecting rib portion 12 for reinforcement is disposed at a middle position of the reduction fixing plate 1, and the arc-shaped sliding grooves 11 are separated by the connecting rib portion 12 to form a symmetrical two-segment structure. Preferably, two sets of screw assemblies 2 are provided in each runner section of the arcuate runner 11. Therefore, a total of four sets of screw assemblies 2 are arranged on the whole reset fixing plate 1, and two ends of the distraction pressurization fine adjustment mechanism 3 are respectively connected to two sets of screw assemblies 2 adjacent in the middle. However, it will be understood by those skilled in the art that in other embodiments, the locking may be performed by the physician by using only two sets of screw assemblies 2 or more sets of screw assemblies 2 than four sets according to the specific fracture condition of the patient, and the utility model is not limited to the embodiment disclosed in the present embodiment.

Referring to fig. 3, in a preferred embodiment, two anti-rotation limiting surfaces 2111 are disposed on the upper screw portion 211 of the screw body 21, which are opposite to each other and make the screw body 21 only slide laterally in the arc-shaped sliding slot 11 and cannot rotate.

Referring to fig. 3 and 5, in a preferred embodiment, first anti-slip teeth 13 are disposed on the upper surface and/or the lower surface of the reduction fixing plate 1. Preferably, the step 213 of the screw body 21 is provided with a second anti-slip tooth 2131. It can be understood that, by providing the second anti-slip teeth 2131 at the upper surface and/or the lower surface of the reset fixing plate 1 and on the stepped portion 213, the locking stability of the screw assembly 2 and the reset fixing plate 1 can be improved, thereby facilitating the improvement of the reset stability to prevent the reset from being lost.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not make the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention, so that all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. The utility model provides a clavicle fracture percutaneous reduction struts pressurization fixing device which characterized in that: comprises a reset fixing plate (1) which is arranged on the body surface and is matched with the physiological radian of the clavicle, an arc-shaped sliding groove (11) which is arranged along the length direction and penetrates through the upper surface and the lower surface of the reset fixing plate (1) is arranged in the reset fixing plate (1), a plurality of screw components (2) are connected in the arc-shaped sliding groove (11), each screw component (2) comprises a screw body (21) and a locking nut (22), each screw body (21) comprises an upper screw rod part (211), a lower screw rod part (212) and a step part (213) positioned between the upper screw rod part (211) and the lower screw rod part (212), the upper screw rod part (211) of each screw body (21) is configured to be inserted into the arc-shaped sliding groove (11) from bottom to top in a matching manner and transversely slide along the arc-shaped sliding groove (11), the locking nut (22) is in threaded connection with the upper screw rod part (211) and is matched with the step part (213) to form a fastening position structure so as to lock the screw bodies (21) on the reset fixing plate (1), the length-adjustable and external propping-open pressurizing fine-adjustment mechanism (3) is connected between the two adjacent screw components (2) close to the fracture end, and the two ends of the propping-open pressurizing fine-adjustment mechanism (3) are respectively and movably connected to the two adjacent screw components (2) close to the fracture end, so that propping-open and pressurizing fine-adjustment correction of the clavicle far and near positions can be carried out from the outside through the propping-open pressurizing fine-adjustment mechanism (3).

2. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 1, wherein: the distraction pressurization fine adjustment mechanism (3) comprises a barrel part (31) and a telescopic rod part (32) telescopically connected in the barrel part (31) in a penetrating and sleeving manner, the telescopic rod part (32) is configured to be capable of extending inwards and outwards relative to the barrel part (31) in an axial direction through the anti-rotation limit of an anti-rotation limiting structure, a first sleeving part (321) is arranged on the outer side end of the telescopic rod part (32), a sleeving hole which can be matched and sleeved on the upper end of an upper screw rod part (211) of one screw body (21) in two adjacent screw components (2) close to a fracture end is formed in the first sleeving part (321), the first sleeving part (321) is fastened and locked with the upper end of the upper screw rod part (211) through a first locking screw (33) locked into the upper end of the upper screw rod part (211), a second sleeving part (311) is arranged on the outer side end, far away from the first sleeving part (321), of the barrel part (31), and a second sleeving part (311) which can be matched and connected on the upper screw rod part (211) of the other screw rod part (21) is formed in a sleeving and arranged The end socket hole, and the second spigot joint portion (311) is locked into the second locking screw (34) of another screw body (21) upper end through one and is fastened and locked together with another upper screw portion (211) upper end, be provided with external screw thread portion (322) on flexible pole portion (32), swing joint has one can be relative barrel portion (31) axial pivoted adjust knob (35) on barrel portion (31), and set up internal thread portion (351) with external screw thread portion (322) looks adaptation on flexible pole portion (32) in adjust knob (35), adjust knob (35) are in the same place through the cooperation threaded connection of internal thread portion (351) and external screw thread portion (322), make and can drive flexible pole portion (32) relative barrel portion (31) through rotatory adjust knob (35) and stretch out and draw back inside and outside in order to adjust length.

3. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 2, wherein: limiting long grooves (312) distributed along the length direction are formed in the peripheral wall of the barrel part (31), a limiting pin (36) connected to the inner side end of the telescopic rod part (32) is arranged in each limiting long groove (312), and an anti-rotation limiting structure is formed by matching the limiting pin (36) with the limiting long grooves (312).

4. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 3, wherein: the peripheral wall of the cylinder part (31) is provided with a graduated scale (313) which can be matched with the limit pin (36) to form a length adjustment reading indication structure.

5. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 2, wherein: adjusting knob (35) adaptation is cup jointed on the inboard end that second portion of cup joint (311) is kept away from in section of thick bamboo portion (31), and has offered an annular groove (314) on the inboard end of section of thick bamboo portion (31), is connected with one on adjusting knob (35) and corresponds fixed pin (352) that set up with annular groove (314), and adjusting knob (35) link together with section of thick bamboo portion (31) through the location fit of fixed pin (352) and annular groove (314).

6. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 1, wherein: the middle position of the reset fixing plate (1) is provided with a connecting rib part (12) for reinforcement, and the arc-shaped sliding groove (11) is separated by the connecting rib part (12) to form a symmetrical two-section structure.

7. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 6, wherein: two sets of screw assemblies (2) are respectively arranged in each section of the arc chute (11).

8. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 1, wherein: two anti-rotation limiting surfaces (2111) which are oppositely arranged and enable the screw body (21) to only transversely slide in the arc-shaped sliding groove (11) and cannot rotate are arranged on an upper screw rod part (211) of the screw body (21).

9. The clavicle fracture percutaneous reduction distraction compression fixation device of any one of claims 1 to 8, wherein: the upper surface and/or the lower surface of the reset fixing plate (1) are/is provided with first anti-skidding teeth (13).

10. The clavicle fracture percutaneous reduction distraction compression fixation device of claim 9, wherein: the step part (213) of the screw body (21) is provided with a second antiskid tooth (2131).