Damage control device for lower limb fracture traction reduction

Abstract

The utility model relates to a injury control device for lower limb fracture traction reduction, which comprises a support assembly, a locking seat, an inserting cylinder, a hexagon nut, an arc-shaped frame, an inserting bolt, connecting long rods and a main Sirschner wire, the locking seat, the inserting cylinder, the arc-shaped frame and the inserting bolt form annular locking pieces, and the annular locking pieces are connected through the two connecting long rods; and the main Sirschner wire penetrates through the two inserting cylinders on the same annular locking piece. The threaded column is screwed in the threaded sleeve by screwing the screw cap, the steel wire cloth at one end of the threaded column extends into the inner side of the second locking cylinder, the steel wire cloth abuts against the side Sirschner wire, the side Sirschner wire is locked and fixed, the upper portion and the lower portion of the threaded connecting rod are screwed with the nuts respectively, the opening of the first locking cylinder is closed, and the first locking cylinder and the outer side of the arc-shaped frame are locked and fixed. The relative positions of the arc-shaped frame and the first locking cylinder are fixed, the first locking cylinder is locked at any position on the arc-shaped frame, and therefore the position of the side Sirschner wire is adjusted in a non-polarization mode.

Description

Technical Field

[0001] The invention belongs to the field of damage control devices, in particular to a damage control device for traction reduction of lower limb fractures. Background Art

[0002] As an interventional radiology medical device, the puncture needle is used to puncture the skin during interventional radiology surgery to further guide the interventional radiology equipment into the body. It is widely used in orthopedic surgery. The puncture needles on the market are tubular needles with a blade head. When performing puncture operations on the human body, the puncture position requires high accuracy.

[0003] The existing relevant patent, patent number CN202121646238.3, "A tibial fracture reduction traction device", has the characteristics of "rotating the adjustment device to make the arc-shaped connecting rod extend and retract to the middle or both sides, thereby realizing traction of the bones on both sides of the fracture end, and at the same time, through the setting of the arc-shaped connecting rod, the needle locking device, the smooth through hole, the main Schreiber wire, the slide rail and the adjustment threaded hole, the sliding slide rail can simultaneously rotate several Schreiber wires connected to the needle locking device, thereby resetting the rotation of the fracture end, and the two arc-shaped connecting rods set up increase the stability of the traction device, and after the bone is relocated, traction and fixation can be performed for a long time, saving the physical strength of medical personnel. The use of the entire traction device saves time and effort, stabilizes and fixes, improves the surgical quality of orthopedic surgery, and reduces secondary injuries to patients". However, it still has some shortcomings, such as using the adjustment threaded hole on the locking needle sleeve to adjust the relative position of the locking needle and the side Schreiber wire on the arc-shaped connecting rod, the adjustment position and angle are limited, and non-polarized adjustment cannot be performed. Therefore, a damage control device for traction reduction of lower limb fractures is proposed. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the following technical problems in the prior art: the relative positions of the needle locker and the side Schirmer needle on the arc connecting rod are adjusted by using the adjustment threaded hole on the needle lock sleeve, but the adjustment position and angle are limited and non-polarized adjustment is not possible.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a damage control device for traction reduction of lower limb fractures, comprising:

[0007] A bracket assembly, the bracket assembly includes a locking seat, a plug-in cylinder, a hexagonal nut, an arc frame, a plug-in bolt, a connecting long rod and a main Schirrer pin, the locking seat, the plug-in cylinder, the arc frame and the plug-in bolt constitute an annular locking piece, and the annular locking pieces are connected by two connecting long rods;

[0008] The main Schirmer pin passes through two plug-in tubes on the same annular locking piece, and the main Schirmer pin does not contact the connecting long rod;

[0009] Each annular locking member comprises two locking seats and two plug-in cylinders, each locking seat is provided with a plug-in cylinder, an arc frame is connected between the locking seats, and a plug-in bolt is provided at each end of the arc frame, and the two plug-in bolts correspond to the two locking seats one by one, and the plug-in bolts and the locking seats are plugged in correspondingly, and one end of the plug-in bolt after passing through the locking seat is threadedly connected with a hexagonal nut, and the two ends of the connecting long rod are respectively connected with a plug-in cylinder;

[0010] Support components, two support components are arranged on the arc frame;

[0011] Mounting assembly: each annular locking member is provided with a mounting assembly.

[0012] As a preferred technical solution of a damage control device for traction reduction of lower limb fractures, the support assembly includes a locking cylinder 1 and a lateral Schirmer pin, two locking cylinders 1 are sleeved on the arc frame, a locking cylinder 2 is arranged on the locking cylinder 1, and a lateral Schirmer pin is inserted into the inner side of the locking cylinder 2;

[0013] The locking cylinder 1 can be locked at any position on the arc frame, so that the position of the side Schmidt needle can be adjusted without polarization.

[0014] As a preferred technical solution of a damage control device for traction reduction of lower limb fractures, the support assembly further comprises a screw cap, a threaded column, a wire cloth and a threaded sleeve, the second locking cylinder is provided with a threaded sleeve, the threaded column is threadedly connected to the threaded sleeve, one end of the threaded column is provided with a wire cloth, the other end of the threaded column is provided with a screw cap, and the wire cloth is frictionally connected to the outer side of the lateral Schirmer wire;

[0015] The screw cap is twisted to screw the threaded column into the threaded sleeve, so that the wire cloth at one end of the threaded column extends into the inner side of the second locking cylinder, so that the wire cloth abuts against the side Schirmer pin, and the side Schirmer pin is locked and fixed.

[0016] As a preferred technical solution of a damage control device for traction reduction of lower limb fractures, the support assembly further includes a threaded connecting rod, a positioning bolt and a positioning hole, one side of the locking cylinder is not closed, the top of one side of the locking cylinder is provided with a positioning hole, the bottom of one side of the locking cylinder is provided with a positioning bolt, the positioning bolt is movably plugged with the positioning hole, a threaded connecting rod is also installed on the locking cylinder at a position away from the positioning bolt, the threaded connecting rod passes through the upper and lower parts of the locking cylinder, and the upper and lower ends of the threaded connecting rod are both threadedly connected with a nut;

[0017] The threaded connecting rod is respectively tightened with a nut at the top and the bottom to close the opening of the locking cylinder 1, so that the locking cylinder 1 is locked and fixed with the outer side of the arc frame, so that the relative positions of the arc frame and the locking cylinder 1 are fixed.

[0018] As a preferred technical solution of a damage control device for traction reduction of lower limb fractures, the mounting assembly includes a mounting rod, a pull ring, a plug connector, an abutment ring, a nut and a connecting thread, the bracket assembly also includes a locking column, the locking seat is provided with a locking column, a plug hole is provided on the locking column, the mounting rod passes through two plug holes on the same annular locking member in sequence, connecting threads are respectively provided at both ends of the outer side of the mounting rod, nuts are threadedly connected to the connecting threads, an abutment ring is provided on the nut, and the abutment ring is movably abutted with the adjacent locking column;

[0019] A plug connector is provided at one end of the mounting rod, and a pull ring is provided at the other end of the mounting rod;

[0020] The mounting assembly further comprises a rotating cylinder, a rotating cylinder is arranged on a side of the nut away from the abutment ring, and the rotating cylinder is sleeved with the mounting rod;

[0021] The rotating cylinders at both ends of the installation rod are rotated to make the abutment ring abut against the locking column, so that the position of the installation rod is locked and connected with the locking column.

[0022] As a preferred technical solution of a damage control device for traction reduction of lower limb fractures, the mounting assembly further comprises an annular groove and a spring plate, a spring plate is arranged on the inner side of one of the plug holes of each annular locking member, an annular groove is arranged on one end of the mounting rod close to the plug connector, and the annular groove is movably engaged with the spring plate;

[0023] The spring plate cooperates with the annular groove to temporarily lock the mounting rod.

[0024] The beneficial effects of the damage control device for traction reduction of lower limb fractures of the present invention are as follows: the threaded column is screwed into the threaded sleeve by twisting the screw cap, so that the wire cloth at one end of the threaded column extends into the inner side of the locking tube two, so that the wire cloth abuts against the side Schreiber wire, so that the side Schreiber wire is locked and fixed, and a nut is tightened up and down the threaded connecting rod respectively to close the opening of the locking tube one, so that the locking tube one and the outer side of the arc frame are locked and fixed, so that the relative positions of the arc frame and the locking tube one are fixed, and the locking tube one is locked at any position on the arc frame, so that the position of the side Schreiber wire can be non-polarized adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the positional relationship between the arc frame and the plug bolt of the present invention;

[0028] Figure 3 It is a schematic diagram of the positional relationship between the arc frame and the locking cylinder 1 of the present invention;

[0029] Figure 4 For the present invention Figure 1 A schematic diagram of the partially enlarged structure of part A;

[0030] Figure 5 For the present invention Figure 1 A schematic diagram of the local enlarged structure of part B;

[0031] Figure 6 It is a schematic structural diagram of the positional relationship between the locking column and the locking seat of the present invention.

[0032] Figure numerals: bracket assembly - 100, locking seat - 101, plug-in cylinder - 102, locking column - 103, hexagonal nut - 104, arc frame - 105, plug-in bolt - 106, connecting long rod - 107, main Schmidt pin - 108, support assembly - 200, locking cylinder one - 201, threaded sleeve - 202, side Schmidt pin - 203, threaded connecting rod - 204, positioning bolt - 205, positioning hole - 206, locking cylinder two - 207, screw cover - 209, threaded column - 210, wire cloth - 211, installation assembly - 300, installation rod - 301, pull ring - 302, plug connector - 303, annular groove - 304, spring plate - 305, abutment ring - 306, nut - 307, rotating cylinder - 308, plug-in hole - 309, connecting thread - 310. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] like Figure 1-6 As shown, the present invention provides a damage control device for traction reduction of lower limb fractures, comprising:

[0038] The bracket assembly 100 includes a locking seat 101, an inserting tube 102, a hexagonal nut 104, an arc frame 105, a plugging bolt 106, a connecting long rod 107 and a main Schirmer pin 108. The locking seat 101, the inserting tube 102, the arc frame 105 and the plugging bolt 106 constitute an annular locking member, and the annular locking members are connected by two connecting long rods 107.

[0039] The main Schirrer pin 108 passes through two insertion tubes 102 on the same annular locking member, and the main Schirrer pin 108 does not contact the connecting long rod 107 .

[0040] Each annular locking member includes two locking seats 101 and two plug-in cylinders 102, each locking seat 101 is provided with a plug-in cylinder 102, an arc frame 105 is connected between the locking seats 101, and a plug-in bolt 106 is provided at both ends of the arc frame 105, and the two plug-in bolts 106 correspond to the two locking seats 101 one by one, and the plug-in bolts 106 and the locking seats 101 are plugged in correspondingly, and one end of the plug-in bolt 106 after passing through the locking seat 101 is threadedly connected with a hexagonal nut 104, and the two ends of the connecting long rod 107 are respectively connected with a plug-in cylinder 102;

[0041] Support assembly 200, two support assemblies 200 are arranged on the arc frame 105;

[0042] The mounting assembly 300 is provided on each annular locking member.

[0043] The support assembly 200 includes a locking cylinder 1 201 and a side Schirmer pin 203. Two locking cylinders 1 201 are sleeved on the arc frame 105. A locking cylinder 207 is arranged on the locking cylinder 1 201. The side Schirmer pin 203 is inserted into the inner side of the locking cylinder 207.

[0044] The locking cylinder 201 can be locked at any position on the arc frame 105, so that the position of the side Schirmer needle 203 can be adjusted without polarization.

[0045] The support assembly 200 further includes a screw cap 209, a threaded column 210, a steel wire cloth 211 and a threaded sleeve 202. The locking cylinder 207 is provided with a threaded sleeve 202. The threaded column 210 is threadedly connected to the threaded sleeve 202. The steel wire cloth 211 is provided at one end of the threaded column 210. The screw cap 209 is provided at the other end of the threaded column 210. The steel wire cloth 211 can be frictionally connected to the outer side of the side Schmidt pin 203.

[0046] The screw cap 209 is turned to screw the threaded column 210 into the threaded sleeve 202, so that the wire cloth 211 at one end of the threaded column 210 extends into the inner side of the locking tube 207, so that the wire cloth 211 abuts against the side Schirmer pin 203, so that the side Schirmer pin 203 is locked and fixed.

[0047] The support assembly 200 further includes a threaded connecting rod 204, a positioning bolt 205 and a positioning hole 206. One side of the locking cylinder 201 is not closed, and a positioning hole 206 is provided at the top of one side of the locking cylinder 201. A positioning bolt 205 is provided at the bottom of one side of the locking cylinder 201. The positioning bolt 205 is movably plugged into the positioning hole 206. A threaded connecting rod 204 is also installed at a position of the locking cylinder 201 away from the positioning bolt 205. The threaded connecting rod 204 passes through the upper and lower parts of the locking cylinder 201. A nut is threadedly connected to the upper and lower ends of the threaded connecting rod 204.

[0048] The threaded connecting rod 204 is respectively tightened with a nut at the top and the bottom to close the opening of the locking cylinder 201, so that the locking cylinder 201 and the outer side of the arc frame 105 are locked and fixed, so that the relative positions of the arc frame 105 and the locking cylinder 201 are fixed.

[0049] The installation assembly 300 includes a mounting rod 301, a pull ring 302, a plug connector 303, an abutment ring 306, a nut 307 and a connecting thread 310. The bracket assembly 100 also includes a locking column 103. The locking seat 101 is provided with a locking column 103. The locking column 103 is provided with a plug hole 309. The mounting rod 301 passes through two plug holes 309 on the same annular locking member in sequence. Both ends of the outer side of the mounting rod 301 are respectively provided with connecting threads 310. The connecting threads 310 are threadedly connected with nuts 307. The nut 307 is provided with an abutment ring 306. The abutment ring 306 is movably abutted with the adjacent locking column 103.

[0050] A plug connector 303 is provided at one end of the mounting rod 301, and a pull ring 302 is provided at the other end of the mounting rod 301;

[0051] The installation assembly 300 further includes a rotating cylinder 308 . The rotating cylinder 308 is disposed on a side of the nut 307 away from the abutment ring 306 . The rotating cylinder 308 is sleeved with the installation rod 301 .

[0052] By rotating the rotating cylinders 308 at both ends of the installation rod 301 , the abutting ring 306 abuts against the locking column 103 , so that the position of the installation rod 301 is locked and connected with the locking column 103 .

[0053] The installation assembly 300 further includes an annular groove 304 and a spring plate 305. A spring plate 305 is disposed inside one of the plug holes 309 of each annular locking member. An annular groove 304 is disposed at one end of the installation rod 301 close to the plug connector 303. The annular groove 304 is movably engaged with the spring plate 305.

[0054] The spring plate 305 cooperates with the annular groove 304 to temporarily lock the mounting rod 301 .

[0055] The specific implementation method is as follows: the annular locking piece is connected to the two ends of the connecting rod 107 of suitable length, the annular locking piece is sleeved on the lower limb bone, and then the position of the locking cylinder 201 is determined, and a nut is tightened on the upper and lower parts of the threaded connecting rod 204 to close the opening of the locking cylinder 201, so that the locking cylinder 201 is locked and fixed to the outer side of the arc frame 105, so that the relative position of the arc frame 105 and the locking cylinder 201 is fixed;

[0056] First, insert the main Steiner pin 108 into the lower limb bone;

[0057] Then insert the side Schirschner pin 203 and twist the screw cap 209 to screw the threaded column 210 into the threaded sleeve 202, so that the wire cloth 211 at one end of the threaded column 210 extends into the inner side of the locking tube 207, so that the wire cloth 211 abuts against the side Schirschner pin 203, so that the side Schirschner pin 203 is locked and fixed.

[0058] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A damage control device for traction reduction of lower limb fractures, characterized in that: include: A support assembly (100), the support assembly (100) comprising a locking seat (101), a plug-in cylinder (102), a hexagonal nut (104), an arc frame (105), a plug-in bolt (106) and a connecting long rod (107), the locking seat (101), the plug-in cylinder (102), the arc frame (105) and the plug-in bolt (106) forming an annular locking member, and the annular locking members are connected via two connecting long rods (107); Each annular locking member comprises two locking seats (101) and two plug-in tubes (102), each locking seat (101) is provided with a plug-in tube (102), an arc frame (105) is connected between the locking seats (101), and a plug-in bolt (106) is provided at each end of the arc frame (105), and the two plug-in bolts (106) correspond to the two locking seats (101) one by one, and the plug-in bolts (106) and the locking seats (101) are plugged in correspondingly, and one end of the plug-in bolt (106) after passing through the locking seat (101) is threadedly connected with a hexagonal nut (104), and the two ends of the connecting long rod (107) are respectively connected with a plug-in tube (102); Support components (200), two support components (200) are arranged on the arc-shaped frame (105); A mounting assembly (300) is provided on each annular locking member.

2. The damage control device for traction reduction of lower limb fractures according to claim 1, characterized in that: The support assembly (200) comprises a locking cylinder 1 (201) and a side Schirrer pin (203); two locking cylinders 1 (201) are sleeved on the arc frame (105); a locking cylinder 2 (207) is arranged on the locking cylinder 1 (201); and the side Schirrer pin (203) is inserted into the inner side of the locking cylinder 2 (207).

3. The damage control device for traction reduction of lower limb fractures according to claim 2, characterized in that: The support assembly (200) further comprises a screw cap (209), a threaded column (210), a steel wire cloth (211) and a threaded sleeve (202); the second locking cylinder (207) is provided with a threaded sleeve (202); the threaded column (210) is threadedly connected to the threaded sleeve (202); one end of the threaded column (210) is provided with a steel wire cloth (211); the other end of the threaded column (210) is provided with a screw cap (209); the steel wire cloth (211) is frictionally connected to the outer side of the side Schmidt pin (203).

4. The damage control device for traction reduction of lower limb fractures according to claim 3, characterized in that: The support assembly (200) further comprises a threaded connecting rod (204), a positioning bolt (205) and a positioning hole (206); one side of the locking cylinder (201) is not closed; a positioning hole (206) is provided at the top of one side of the locking cylinder (201); a positioning bolt (205) is provided at the bottom of one side of the locking cylinder (201); the positioning bolt (205) is movably connected to the positioning hole (206); a threaded connecting rod (204) is also arranged at a position of the locking cylinder (201) away from the positioning bolt (205); the threaded connecting rod (204) passes through the upper and lower parts of the locking cylinder (201); and a nut is threadedly connected to the upper and lower ends of the threaded connecting rod (204).

5. The damage control device for traction reduction of lower limb fractures according to claim 1, characterized in that: The mounting assembly (300) comprises a mounting rod (301), a pull ring (302), a plug connector (303), an abutment ring (306), a nut (307) and a connecting thread (310). The bracket assembly (100) further comprises a locking column (103). The locking seat (101) is provided with a locking column (103). The locking column (103) is provided with a plug hole (309). The mounting rod (301) passes through two plug holes (309) on the same annular locking member in sequence. Both ends of the outer side of the mounting rod (301) are respectively provided with connecting threads (310). The connecting threads (310) are threadedly connected with nuts (307). The nut (307) is provided with an abutment ring (306). The abutment ring (306) is movably abutted with the adjacent locking column (103). One end of the installation rod (301) is provided with a plug connector (303), and the other end of the installation rod (301) is provided with a pull ring (302).

6. The damage control device for traction reduction of lower limb fractures according to claim 5, characterized in that: The installation assembly (300) further comprises a rotating cylinder (308), and a rotating cylinder (308) is provided on a side of the nut (307) away from the abutment ring (306), and the rotating cylinder (308) is sleeved with the installation rod (301).

7. The damage control device for traction reduction of lower limb fractures according to claim 6, characterized in that: The installation assembly (300) further comprises an annular groove (304) and a spring plate (305), wherein the inner side of one of the plug holes (309) of each annular locking member is provided with a spring plate (305), and an annular groove (304) is provided at one end of the installation rod (301) close to the plug connector (303), wherein the annular groove (304) is movably engaged with the spring plate (305).

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