External fixing frame for orthopedics department

Abstract

The utility model provides an orthopedic external fixing frame which comprises a first fixing plate and a second fixing plate, a connecting assembly is arranged between the first fixing plate and the second fixing plate, and mounting assemblies are arranged between the first fixing plate and a fixing needle body and between the second fixing plate and the fixing needle body. The mounting block can be fixed under the cooperation of the connecting screw rod and the limiting block, the limiting teeth can be clamped in the limiting tooth grooves, the situation that the mounting block swings in the using process is avoided, and the first fixing plate and the second fixing plate are movably connected conveniently by arranging the connecting base, the connecting rod and the connecting ball; the first fixing plate and the second fixing plate can be correspondingly adjusted in a swinging mode by medical staff according to requirements, the connecting ball located in the connecting base can be fixed after the locking screw is screwed down, the first fixing plate and the second fixing plate are prevented from swinging in the using process, and the using effect is improved. Therefore, the use stability of the first fixing plate and the second fixing plate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic fixation appliances, in particular to an orthopedic external fixator. Background Art

[0002] Orthopedics, also known as orthopedic surgery, is a medical specialty or discipline that specializes in the anatomy, physiology, and pathology of the musculoskeletal system. It uses medication, surgery, and physical methods to maintain and develop the normal form and function of this system, as well as to treat injuries to this system. External fixators are medical devices frequently used in orthopedic surgery. Their main function is to maintain the position of the patient's limbs during surgery and prevent further displacement after surgery.

[0003] Announcement No. "CN210749719U" provides an orthopedic external fixator, which is provided with a movable adapter on the basis of the existing orthopedic external fixator. The left and right mounting heads at both ends of the movable connecting rod can be used to connect the second fixing plate and the first fixing plate together, so that the entire fixing member has a bendable

[0004] The ability to fold makes it easier for doctors to adjust the fixing angle of the fixator according to the actual situation of the patient. A sliding needle clamp assembly is provided on the basis of the existing orthopedic external fixator. The clamping slider provided at the bottom of the clamping block can enable the needle clamp assembly to slide in the clamping slot on the plate body, thereby

[0005] It is convenient for medical staff to continuously perform telescopic adjustment on the fixing frame.

[0006] However, the above technical solutions and the prior art have the following defects:

[0007] First, the needle clamp assembly in the fixing frame cannot fix the fixed needle well during actual use, and the clamp block is prone to shaking during use, and the stability of use is poor. Secondly, the right connector and the left connector in the fixing frame do not have corresponding positioning structures to fix them, resulting in the movable adapter not being well positioned during use, thereby affecting the stability of the fixing frame. Utility Model Content

[0008] The purpose of the present invention is to provide an orthopedic external fixator to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] An orthopedic external fixator includes a first fixing plate, a fixing needle body and a second fixing plate, the second fixing plate is connected to the bottom of the first fixing plate, and the fixing needle bodies are installed on the sides of the first fixing plate and the second fixing plate, a connecting component is provided between the first fixing plate and the second fixing plate, and the connecting component is used to movably connect the first fixing plate and the second fixing plate, an installation component is provided between the first fixing plate and the second fixing plate and the fixing needle body, and the installation component is used to install the fixing needle body at the required positions on the sides of the first fixing plate and the second fixing plate respectively.

[0011] Preferably, the mounting assembly includes a mounting block, a fixing nut, a connecting screw, a limiting tooth, a mounting groove, a limiting block and a limiting tooth groove. The first fixing plate and the second fixing plate are both provided with mounting grooves on their sides, and the limiting block is inserted into the mounting groove. The left end face of the limiting block is connected to the connecting screw, and the fixing nut is installed on the annular side of the connecting screw. The left end faces of the first fixing plate and the second fixing plate are both provided with mounting blocks, and a limiting tooth groove is provided on the front side of the right end of the mounting block. The first fixing plate and the second fixing plate are both provided with limiting teeth on the front side of the left end, and the limiting teeth match the limiting tooth groove.

[0012] Preferably, the connecting assembly includes a connecting seat, a limit stop ring, a connecting rod, a locking screw and a connecting ball. The lower end of the first fixed plate and the upper end surface of the second fixed plate are fixedly connected to the connecting seat, the upper end surface of the connecting seat is installed with a limit stop ring, the locking screw is installed on the left side of the annular side surface of the connecting seat, a connecting ball is installed inside the connecting seat, and the lower end surface of the connecting ball is connected to the connecting rod.

[0013] Preferably, a limiting cavity is provided inside the connecting seat, and the limiting cavity matches the connecting ball. A second internally threaded through hole is provided on the left side of the annular side surface of the connecting seat, and the second internally threaded through hole is communicated with the limiting cavity.

[0014] Preferably, the limit stop ring is in the shape of a circular ring, the inner diameter of the limit stop ring is smaller than the diameter of the connecting ball, and the inner diameter of the limit stop ring is larger than the diameter of the connecting rod.

[0015] Preferably, the mounting block has symmetrically provided through holes on the upper and lower sides, and the through holes match the fixed needle body, the upper and lower end surfaces of the mounting block have symmetrically provided first internally threaded through holes, and the first internally threaded through holes are connected to the through holes, a fixing screw is installed inside the first internally threaded through holes, and a mounting through hole is provided in the middle position inside the mounting block, and the mounting through hole matches the connecting screw.

[0016] Preferably, the limiting block matches the mounting groove, the mounting groove is convex in shape, and the limiting block and the connecting screw are an integrated structure.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By loosening the fixing nut, the mounting block can be displaced outward for a certain distance, so that the limiting teeth are separated from the limiting tooth groove, so that medical personnel can adjust the mounting block up and down according to needs. After the adjustment is completed, tighten the fixing nut again, and the mounting block can be fixed with the cooperation of the connecting screw and the limiting block. The limiting teeth will be stuck in the limiting tooth groove to prevent the mounting block from swinging during use, thereby ensuring the stability of the mounting block. By tightening the fixing screw, the fixed needle body inserted into the through hole can be fixed;

[0019] 2. By respectively arranging a connecting seat, a connecting rod and a connecting ball, the first fixing plate and the second fixing plate can be movably connected, so that medical personnel can swing and adjust the first fixing plate and the second fixing plate according to needs, and the limit ring can prevent the connecting ball inside the connecting seat from being displaced and slipping during use. At the same time, when the locking screw is tightened, the connecting ball inside the connecting seat can be fixed to prevent the first fixing plate and the second fixing plate from swinging during use, thereby ensuring the stability of the first fixing plate and the second fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 It is a structural diagram of the installation components and connection components in the present utility model;

[0022] Figure 3 It is a front cross-sectional view of the installation component and the connection component in the present utility model;

[0023] Figure 4 This is a dispersed structural diagram (exploded diagram) of the connection components in the present utility model;

[0024] Figure 5 This is a partial dispersed structural diagram (exploded diagram) of the installation components in the present invention.

[0025] In the figure: 1. First fixing plate; 2. Mounting assembly; 21. Mounting block; 22. Through hole; 23. Fixing screw; 24. Fixing nut; 25. Connecting screw; 26. Limiting teeth; 27. Mounting groove; 28. Limiting block; 29. ​​Limiting tooth groove; 211. Mounting through hole; 212. First internally threaded through hole; 3. Fixed needle body; 4. Connecting assembly; 41. Connecting seat; 411. Limiting cavity; 412. Second internally threaded through hole; 42. Limiting retaining ring; 43. Connecting rod; 44. Locking screw; 45. Connecting ball; 5. Second fixing plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5 , the utility model provides a technical solution: Example

[0028] An orthopedic external fixator includes a first fixing plate 1, a fixing needle body 3 and a second fixing plate 5. The second fixing plate 5 is connected to the bottom of the first fixing plate 1. The first fixing plate 1 and the second fixing plate 5 have the same specifications. The first fixing plate 1 and the second fixing plate 5 with the same specifications can support the fixing needle body 3 through the installation component 2. The first fixing plate 1 and the second fixing plate 5 are both installed with fixing needle bodies 3 on the sides. The rear end of the fixing needle body 3 is implanted and fixed in the designated position of the patient's broken bone through an external bone screw, so that the patient's bone fracture can be better restored and healed after reduction in the later stage. Since the detailed installation steps and working principles of the fixing needle body 3 are relatively mature technologies in the existing technology, they will not be described in detail here.

[0029] A connecting component 4 is provided between the first fixing plate 1 and the second fixing plate 5, and the connecting component 4 is used to movably connect the first fixing plate 1 and the second fixing plate 5. An installation component 2 is provided between the first fixing plate 1 and the second fixing plate 5 and the fixing needle body 3, and the installation component 2 is used to install the fixing needle body 3 at the required positions on the sides of the first fixing plate 1 and the second fixing plate 5 respectively.

[0030] The mounting assembly 2 includes a mounting block 21, a fixing nut 24, a connecting screw 25, a limiting tooth 26, a mounting groove 27, a limiting block 28 and a limiting tooth groove 29. The first fixing plate 1 and the second fixing plate 5 are both provided with a mounting groove 27 on their sides. The mounting groove 27 is convex in shape. The convex mounting groove 27 not only facilitates the limiting block 28 to slide up and down inside the first fixing plate 1 and the second fixing plate 5, but also can limit and guide the limiting block 28 to avoid deviation of the limiting block 28 during use. In case of movement or shaking, a limiting block 28 is inserted into the mounting groove 27, and the limiting block 28 matches the mounting groove 27. The limiting block 28 can support the connecting screw 25, and the left end face of the limiting block 28 is connected to the connecting screw 25. The limiting block 28 and the connecting screw 25 are an integrated structure, and a fixing nut 24 is installed on the annular side of the connecting screw 25. The connecting screw 25 and the fixing nut 24 can respectively install and fix the mounting blocks 21 on the upper and lower sides to the required positions on the sides of the first fixing plate 1 and the second fixing plate 5.

[0031] The left end faces of the first fixing plate 1 and the second fixing plate 5 are both installed with mounting blocks 21, and the mounting blocks 21 can support the fixed needle body 3. A limiting tooth groove 29 is provided on the front side of the right end of the mounting block 21, and the left end faces of the first fixing plate 1 and the second fixing plate 5 are both provided with limiting teeth 26, and the limiting teeth 26 and the first fixing plate 1 and the second fixing plate 5 are an integrated structure, and the limiting teeth 26 match the limiting tooth groove 29. The matching limiting teeth 26 and limiting tooth groove 29 can limit the mounting block 21 to prevent the mounting block 21 from swinging during use. Through holes 22 are symmetrically provided on the upper and lower sides of the mounting block 21, and the through holes 22 match the fixed needle body 3 The insertion through hole 22 facilitates the insertion of the fixed needle body 3 into the interior of the mounting block 21. The upper and lower end surfaces of the mounting block 21 are symmetrically provided with first internally threaded through holes 212, and the first internally threaded through hole 212 is communicated with the insertion through hole 22. A fixing screw 23 is installed inside the first internally threaded through hole 212, and the first internally threaded through hole 212 is engaged with the fixing screw 23. The engaged first internally threaded through hole 212 and the fixing screw 23 can fix the fixed needle body 3 inserted in the insertion through hole 22. A mounting through hole 211 is provided in the middle position inside the mounting block 21, and the mounting through hole 211 matches the connecting screw 25. The mounting through hole 211 facilitates the connecting screw 25 to pass through the mounting block 21 for use. Example

[0032] On the basis of Example 1, in this embodiment, a connecting seat 41, a connecting rod 43 and a connecting ball 45 are respectively provided to facilitate the active connection between the first fixing plate 1 and the second fixing plate 5, so that medical personnel can swing and adjust the first fixing plate 1 and the second fixing plate 5 according to needs, and the limit ring 42 can prevent the connecting ball 45 inside the connecting seat 41 from being displaced and slipping during use. At the same time, when the locking screw 44 is tightened, the connecting ball 45 inside the connecting seat 41 can be fixed to prevent the first fixing plate 1 and the second fixing plate 5 from swinging during use, thereby ensuring the stability of the first fixing plate 1 and the second fixing plate 5.

[0033] The connecting assembly 4 includes a connecting seat 41, a limit stop ring 42, a connecting rod 43, a locking screw 44 and a connecting ball 45. The lower end of the first fixed plate 1 and the upper end surface of the second fixed plate 5 are fixedly connected with the connecting seat 41. The connecting seat 41 and the first fixed plate 1 and the second fixed plate 5 are all integrated structures. The connecting seat 41 facilitates the movable connection between the connecting ball 45 and the first fixed plate 1 and the second fixed plate 5. A limit stop ring 42 is installed on the upper end surface of the connecting seat 41. The limit stop ring 42 is in the shape of a circular ring. The inner diameter of the limit stop ring 42 is smaller than the diameter of the connecting ball 45, and the inner diameter of the limit stop ring 42 is larger than the diameter of the connecting rod 43. The limit stop ring 42 in the shape of a circular ring can not only prevent the connecting ball 45 inside the connecting seat 41 from being displaced and slipping during use, but also enables the connecting ball 45 to have a certain degree of rotation ability.

[0034] A connecting ball 45 is installed inside the connecting seat 41, and the connecting ball 45 facilitates the movable connection between the connecting rod 43 and the connecting seat 41. The lower end face of the connecting ball 45 is connected to the connecting rod 43, and the connecting rod 43 and the connecting ball 45 are connected by welding. The connecting rod 43 can support the connecting ball 45. A limiting cavity 411 is provided inside the connecting seat 41, and the limiting cavity 411 matches the connecting ball 45. The limiting cavity 411 facilitates the use of the connecting ball 45 inside the connecting seat 41. A second internally threaded through hole 412 is provided on the left side of the annular side surface of the connecting seat 41, and the second internally threaded through hole 412 is connected to the limiting cavity 411. A locking screw 44 is installed on the left side of the annular side surface of the connecting seat 41, and the second internally threaded through hole 412 is engaged with the locking screw 44. The engaged second internally threaded through hole 412 and the locking screw 44 can fix the connecting ball 45 inside the limiting cavity 411.

[0035] Working principle: After the rear ends of multiple fixing needle bodies 3 are implanted and fixed in the designated positions of the patient's fractured bones, the medical staff first loosens the fixing nuts 24 on the upper and lower sides respectively with the help of an external wrench. At this time, the mounting block 21 can be displaced outward for a distance to separate the limiting teeth 26 from the limiting tooth grooves 29, so that the medical staff can adjust the mounting block 21 up and down according to the needs and the installation position of the fixing needle body 3. After adjusting to the required position, tighten the fixing nuts 24 on the upper and lower sides respectively, so that the fixing nuts 24 can fix the mounting block 21 with the cooperation of the connecting screw 25 and the limiting block 28, and at the same time, the limiting teeth 26 will be stuck in the limiting tooth grooves 29 again to prevent the mounting block 21 from swinging during use; then loosen the locking screws 44 on the upper and lower sides respectively with the help of an external wrench, so that the connecting seats 4 on the upper and lower sides can be opened. 1 can make a swinging motion so that the medical staff can swing and adjust the first fixing plate 1 and the second fixing plate 5 respectively, so as to facilitate the medical staff to insert the front end of the fixing needle body 3 into the corresponding insertion through hole 22. When the fixing needle body 3 is inserted into the required position inside the insertion through hole 22, the fixing screws 23 on the upper and lower sides are tightened respectively with the help of an external wrench to fix the fixing needle body 3 in the insertion through hole 22. Then, the medical staff tightens the locking screws 44 on the upper and lower sides respectively with the help of an external wrench to fix the connecting ball 45 inside the connecting seat 41, thereby preventing the first fixing plate 1 and the second fixing plate 5 from swinging again, so that the first fixing plate 1 and the second fixing plate 5 can firmly support the fixing needle body 3 through the mounting block 21, thereby preventing the patient from suffering from fracture bone displacement again after surgery.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An orthopedic external fixator, comprising a first fixing plate (1), a fixing needle (3) and a second fixing plate (5), characterized in that: A second fixing plate (5) is connected below the first fixing plate (1), and fixing needle bodies (3) are installed on the sides of the first fixing plate (1) and the second fixing plate (5). A connecting component (4) is provided between the first fixing plate (1) and the second fixing plate (5), and the connecting component (4) is used to movably connect the first fixing plate (1) and the second fixing plate (5). A mounting component (2) is provided between the first fixing plate (1) and the second fixing plate (5) and the fixing needle body (3), and the mounting component (2) is used to mount the fixing needle body (3) at required positions on the sides of the first fixing plate (1) and the second fixing plate (5), respectively.

2. The orthopedic external fixator according to claim 1, characterized in that: The mounting assembly (2) comprises a mounting block (21), a fixing nut (24), a connecting screw (25), a limiting tooth (26), a mounting groove (27), a limiting block (28) and a limiting tooth groove (29). The first fixing plate (1) and the second fixing plate (5) are both provided with a mounting groove (27) on their sides. The limiting block (28) is inserted into the mounting groove (27). The left end face of the limiting block (28) is connected to the connecting screw (25). The annular side face of the connecting screw (25) is provided with a fixing nut (24). The left end faces of the first fixing plate (1) and the second fixing plate (5) are both provided with a mounting block (21). The front side face of the right end face of the mounting block (21) is provided with a limiting tooth groove (29). The front side face of the left end face of the first fixing plate (1) and the second fixing plate (5) are both provided with a limiting tooth (26), and the limiting tooth (26) matches the limiting tooth groove (29).

3. The orthopedic external fixator according to claim 1, characterized in that: The connecting assembly (4) comprises a connecting seat (41), a limit retaining ring (42), a connecting rod (43), a locking screw (44) and a connecting ball (45), wherein the lower end of the first fixing plate (1) and the upper end surface of the second fixing plate (5) are fixedly connected with the connecting seat (41), the limit retaining ring (42) is installed on the upper end surface of the connecting seat (41), the locking screw (44) is installed on the left side of the annular side surface of the connecting seat (41), the connecting ball (45) is installed inside the connecting seat (41), and the lower end surface of the connecting ball (45) is connected to the connecting rod (43).

4. The orthopedic external fixator according to claim 3, characterized in that: A limiting cavity (411) is provided inside the connecting seat (41), and the limiting cavity (411) matches the connecting ball (45). A second internally threaded through hole (412) is provided on the left side of the annular side surface of the connecting seat (41), and the second internally threaded through hole (412) is communicated with the limiting cavity (411).

5. The orthopedic external fixator according to claim 3, characterized in that: The limiting retaining ring (42) is in the shape of a circular ring, the inner diameter of the limiting retaining ring (42) is smaller than the diameter of the connecting ball (45), and the inner diameter of the limiting retaining ring (42) is larger than the diameter of the connecting rod (43).

6. The orthopedic external fixator according to claim 2, characterized in that: The mounting block (21) has symmetrically formed through holes (22) on the upper and lower sides thereof, and the through holes (22) match the fixed needle body (3). The mounting block (21) has symmetrically formed first internal threaded through holes (212) on the upper and lower end surfaces thereof, and the first internal threaded through holes (212) are connected to the through holes (22). A fixing screw (23) is installed inside the first internal threaded through holes (212). The mounting block (21) has a mounting through hole (211) formed in the middle thereof, and the mounting through hole (211) matches the connecting screw (25).

7. The orthopedic external fixator according to claim 2, characterized in that: The limiting block (28) matches the mounting groove (27), the mounting groove (27) is convex in shape, and the limiting block (28) and the connecting screw (25) are an integrated structure.

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