Internal fixing device for limb fracture

Abstract

The utility model relates to the field of orthopedics, in particular to an internal fixing device for limb fracture. The internal fixing device aims to solve the technical problems that in the prior art, a steel plate or a steel needle is easily fixed improperly, and dislocation of a bone fracture position is caused by improper fixation of the steel plate. An internal fixing device for limb fracture comprises a clamping assembly and a connecting assembly. By the adoption of the assembly design, the connecting assembly can be used in cooperation with clamping assemblies of different ring numbers, a doctor can select the clamping assembly of the corresponding ring number according to imaging examination (such as X-ray, CT or MRI) of a patient, during an operation, the clamping assemblies are stably fixed to the two sides of a broken bone in a surrounding mode, and after the two clamping assemblies are connected, the clamping assemblies can be fixed to the two sides of the broken bone in a surrounding mode. The adjusting assembly is operated to control the distance between the two clamping assemblies until the broken end of the fracture is reset, the supporting strip fixes and supports the fracture position, the design can greatly simplify the internal fixation operation of the fracture, the operation efficiency is improved, and meanwhile the fracture position is fixed very stably.

Description

Technical Field

[0001] The utility model relates to the field of orthopedics, in particular to an internal fixation device for limb fractures. Background Art

[0002] A fracture refers to a complete or partial break in the continuity of a bone structure. After timely repair or surgery, the patient can basically recover his original function.

[0003] However, existing internal fixation of limb fractures mainly uses steel plates, steel needles and other equipment, which are installed at the patient's fracture site. The steel plates play a stress supporting role in the patient's body, can maintain the firmness of reduction, and assist the normal healing of bones. During surgery, the steel plates or steel needles are prone to improper fixation at the fracture site. If the fixation is improper, the bone may be dislocated after the steel plate is installed, and it may be removed again, increasing the patient's pain. Utility Model Content

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an internal fixation device for limb fractures, which aims to solve the technical problem that improper fixation of steel plates or steel needles in the prior art may cause dislocation of the bone fracture.

[0005] The technical solution of the utility model is: an internal fixation device for limb fractures, comprising a clamping component, a connecting component, an adjusting component, a sealing cover, a connecting ear, and a fixing bolt; a connecting component that can connect the two clamping components is arranged at the rear end of the clamping component and another clamping component; an adjusting component for adjusting the distance between the two clamping components is arranged at the upper end of the connecting component; a sealing cover is embedded and connected at the upper end of the adjusting component; connecting ears are fixed at the left and right ends of the sealing cover; the connecting ears and the adjusting component are installed and connected by fixing bolts.

[0006] Preferably, in the first step, the fracture internal fixation device adopts an assembly design, and the connecting component can be used with clamping components of different circle numbers to meet the surgical needs of bones of different thicknesses; in the second step, during the operation, the doctor can select the clamping component with the corresponding circle number according to the patient's imaging examination (such as X-ray, CT or MRI); in the third step, during the operation, the doctor will operate according to the previously formulated fracture internal fixation device, fix the clamping components on both sides of the broken bone, use the connecting component to connect the two clamping components, operate from the upper end of the adjustment component, control the distance between the two clamping components, until the fracture ends are reset, and the support bar fixes and supports the fracture; in the fourth step, shorten the excess support bar, and then embed the sealing cover into the upper end of the adjustment component, and use the fixing bolt to pass through the mounting hole of the connecting ear to fix the sealing cover and the adjustment component.

[0007] Preferably, the number of clamping components is two; the clamping components include a fixing ring, anti-slip teeth, a first positioning hole, a second positioning hole, a steel nail and a threaded column; anti-slip teeth are arranged on the inner side of the fixing ring; a first positioning hole is opened in the left end area of ​​the fixing ring; a second positioning hole is opened in the right end area of ​​the fixing ring; the fixing ring is clamped on the outside of the broken bone, the fixing ring fits against the bone, and the anti-slip teeth on the inside can increase the friction between the fixing ring and the bone, making it difficult to shift, and then the steel nails are passed through the first positioning hole and the second positioning hole on the left and right sides, so that the fixing ring is firmly installed on the bone.

[0008] Preferably, the first positioning hole, the second positioning hole and the bone are fixedly connected by steel nails; a threaded column is fixedly connected to the middle position of the rear end of the fixing ring; the fracture internal fixation device adopts an assembly design, and the connecting components can be used with fixing rings of different ring sizes to meet the surgical needs of bones of different thicknesses.

[0009] Preferably, the connecting component includes a first mounting seat, a second mounting seat, a support bar and a slide groove; the first mounting seat is fixedly connected to the rear end of the clamping component; the second mounting seat is fixedly connected to the rear end of the other clamping component; threaded holes are provided at the front ends of the first mounting seat and the second mounting seat; during surgery, the support bar at the upper end of the first mounting seat is passed through the slide groove of the second mounting seat and the operating cavity of the adjustment component in turn, and when the straight tooth groove area of ​​the support bar is pulled toward the opening, the distance between the two clamping components can be adjusted until the fracture ends are repositioned, and the support bar fixes and supports the fracture.

[0010] Preferably, a support bar is fixedly connected to the upper end of the first mounting seat; a slide groove is provided at the lower end of the second mounting seat; the support bar and the slide groove are slidably connected; after releasing the hand, the clamping block presses against the straight tooth groove to position it.

[0011] Preferably, the adjustment assembly includes an operating cavity, a straight tooth groove, a block and an avoidance groove; the straight tooth groove with a support strip is slidably connected to the inner side of the operating cavity; the doctor cuts off excess support strips to complete the fracture internal fixation operation.

[0012] Preferably, a clamping block is provided inside the operating cavity; the clamping block is engaged with the straight tooth groove; and an avoidance groove matching the sealing cover is provided at the upper end of the operating cavity.

[0013] Beneficial effects of the utility model:

[0014] The utility model adopts an assembly design, and the connecting components can be used with clamping components of different circle numbers. The doctor can select the clamping components of the corresponding circle number according to the patient's imaging examination (such as X-ray, CT or MRI) to meet the surgical needs of bones of different thicknesses. During the operation, the clamping components are stably fixed on both sides of the broken bone in an embracing manner. After the two clamping components are connected, the adjustment component is operated to control the distance between the two clamping components until the fracture ends are reset. The support bar fixes and supports the fracture. This design can greatly simplify the internal fixation operation of the fracture and improve the efficiency of the operation. At the same time, the fixation of the fracture is very stable, which helps to restore the normal length of the bone, maintain the continuity of the bone, and reduce the pain of the fracture patient's recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is a three-dimensional structural schematic diagram of the internal fixation device of the utility model;

[0016] Figure 2 The figure shows a disassembled three-dimensional structure diagram of the internal fixation device of the present invention;

[0017] Figure 3 Shown is a schematic diagram of the structure of the clamping assembly of the internal fixation device of the present utility model;

[0018] Figure 4 What is shown is a schematic diagram of the cross-sectional structure of the adjustment component of the internal fixation device of the present invention.

[0019] Explanation of the accompanying drawings: 1. Clamping assembly; 101. Fixing ring; 102. Anti-slip teeth; 103. First positioning hole; 104. Second positioning hole; 105. Steel nail; 106. Threaded column; 2. Connecting assembly; 201. First mounting seat; 202. Second mounting seat; 203. Support bar; 204. Slide groove; 3. Adjusting assembly; 301. Operating cavity; 302. Straight tooth groove; 303. Block; 304. Avoidance groove; 4. Sealing cover; 5. Connecting ear; 6. Fixing bolt. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1The utility model provides an embodiment: an internal fixation device for limb fractures, comprising a clamping component 1, a connecting component 2, an adjusting component 3, a sealing cover 4, a connecting ear 5, and a fixing bolt 6; a connecting component 2 that can connect the two clamping components 1 is provided at the rear end of the clamping component 1 and another clamping component 1; an adjusting component 3 for adjusting the distance between the two clamping components 1 is provided at the upper end of the connecting component 2; a sealing cover 4 is embedded and connected at the upper end of the adjusting component 3; connecting ears 5 are fixed at the left and right ends of the sealing cover 4; the connecting ears 5 and the adjusting component 3 are installed and connected by fixing bolts 6.

[0022] See also Figure 2 In this embodiment, the connecting component 2 includes a first mounting seat 201, a second mounting seat 202, a support bar 203 and a slide groove 204; the first mounting seat 201 is fixedly connected to the rear end of the clamping component 1; the second mounting seat 202 is fixedly connected to the rear end of the other clamping component 1; the first mounting seat 201 and the second mounting seat 202 are both provided with threaded holes at the front ends; during the operation, the support bar 203 at the upper end of the first mounting seat 201 is sequentially passed through the slide groove 204 of the second mounting seat 202 and the adjusting component 3, when the straight tooth groove 302 area of ​​the support bar 203 is pulled toward the opening, the distance between the two clamping components 1 can be adjusted until the fracture end is reset, and the support bar 203 fixes and supports the fracture. The upper end of the first mounting seat 201 is fixedly connected with the support bar 203; the lower end of the second mounting seat 202 is provided with a slide groove 204; the support bar 203 and the slide groove 204 are slidably connected; after releasing the hand, the clamping block 303 is firmly pressed against the straight tooth groove 302 to position it.

[0023] See also Figure 3 In this embodiment, there are two clamping components 1; the clamping component 1 includes a fixing ring 101, an anti-slip tooth 102, a first positioning hole 103, a second positioning hole 104, a steel nail 105 and a threaded column 106; the anti-slip tooth 102 is arranged on the inner side of the fixing ring 101; the first positioning hole 103 is opened in the left end area of ​​the fixing ring 101; the second positioning hole 104 is opened in the right end area of ​​the fixing ring 101; the fixing ring 101 is clamped on the outside of the broken bone, the fixing ring 101 fits with the bone, and the anti-slip tooth 102 on the inner side can increase the fixing ring 10 1 and the bone to prevent it from shifting, and then the steel nails 105 are passed through the first positioning holes 103 and the second positioning holes 104 on the left and right sides, so that the fixing ring 101 is firmly installed on the bone, and the first positioning holes 103, the second positioning holes 104 and the bone are fixedly connected by the steel nails 105; the middle position of the rear end of the fixing ring 101 is fixedly connected with a threaded column 106; the fracture internal fixation device adopts an assembly design, and the connecting component 2 can be used with fixing rings 101 of different ring numbers to meet the surgical needs of bones of different thicknesses.

[0024] See also Figure 4In this embodiment, the adjustment component 3 includes an operating cavity 301, a straight tooth groove 302, a clamping block 303 and an avoidance groove 304; the straight tooth groove 302 with the support bar 203 is slidably connected to the inner side of the operating cavity 301; the doctor cuts off the excess support bar 203 to complete the fracture internal fixation operation, and a clamping block 303 is arranged on the inner side of the operating cavity 301; the clamping block 303 is engaged with the tooth groove of the straight tooth groove 302; the upper end of the operating cavity 301 is provided with an avoidance groove 304 matching the sealing cover 4.

[0025] During operation, in the first step, the fracture internal fixation device adopts an assembly design, and the connecting component 2 can be used with the clamping components 1 of different circle numbers to meet the surgical needs of bones of different thicknesses.

[0026] In the second step, during the operation, the doctor can select the clamping component 1 with the corresponding circle number according to the patient's imaging examination such as X-ray, CT or MRI.

[0027] In the third step, during the operation, the doctor will operate according to the previously formulated fracture internal fixation device, simply assemble the clamping component 1 and the connecting component 2, screw the threaded column 106 at the rear end of the clamping component 1 into the threaded hole of the mounting seat, and then fix the clamping component 1 on both sides of the broken bone, and clamp the fixing ring 101 on the outside of the broken bone. The fixing ring 101 fits the bone, and the anti-slip teeth 102 on the inside can increase the friction between the fixing ring 101 and the bone, making it difficult to shift. Then, the steel nails 105 are passed through the first positioning holes 103 and the second positioning holes 104 on the left and right sides. Install the fixing ring 101 firmly on the bone, use the connecting component 2 to connect the two clamping components 1, and pass the supporting bar 203 at the upper end of the first mounting seat 201 through the slide groove 204 of the second mounting seat 202 and the operating cavity 301 of the adjusting component 3 in sequence. When the straight tooth groove 302 area of ​​the supporting bar 203 is pulled toward the opening, the distance between the two clamping components 1 can be adjusted until the fracture ends are reset. The supporting bar 203 fixes and supports the fracture. After letting go, the clamping block 303 presses against the straight tooth groove 302 to position it.

[0028] In the fourth step, the redundant support strips 203 are cut short, and the sealing cover 4 is then embedded into the avoidance groove 304 of the adjustment component 3 , and the fixing bolts 6 are passed through the mounting holes of the connecting ears 5 to fix the sealing cover 4 and the adjustment component 3 .

[0029] Through the above steps, the connecting component 2 can be used with the clamping components 1 of different circle numbers. The doctor can select the clamping component 1 of the corresponding circle number according to the patient's imaging examination such as X-ray, CT or MRI to meet the surgical needs of bones of different thicknesses. During the operation, the clamping component 1 is stably fixed on both sides of the broken bone in an embracing manner. After connecting the two clamping components 1, the adjustment component 3 is operated to control the distance between the two clamping components 1 until the fracture ends are reset. The support bar 203 fixes and supports the fracture. This design can greatly simplify the internal fixation operation of the fracture and improve the efficiency of the operation. At the same time, the fixation of the fracture is very stable, which helps to restore the normal length of the bone, maintain the continuity of the bone, and reduce the pain of the fracture patient's recovery.

[0030] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A limb fracture internal fixation device, comprising a clamping assembly (1); characterized in that: The invention also comprises a connecting component (2), an adjusting component (3), a sealing cover (4), a connecting ear (5), and a fixing bolt (6); a connecting component (2) capable of connecting the two clamping components (1) is arranged at the rear end of the clamping component (1) and another clamping component (1); an adjusting component (3) for adjusting the distance between the two clamping components (1) is arranged at the upper end of the connecting component (2); a sealing cover (4) is embedded and connected at the upper end of the adjusting component (3); connecting ears (5) are fixed at the left and right ends of the sealing cover (4); and the connecting ears (5) and the adjusting component (3) are installed and connected via fixing bolts (6).

2. The internal fixation device for limb fractures according to claim 1, characterized in that: The number of the clamping components (1) is two; the clamping components (1) include a fixing ring (101), anti-slip teeth (102), a first positioning hole (103), a second positioning hole (104), a steel nail (105) and a threaded column (106); the anti-slip teeth (102) are arranged on the inner side of the fixing ring (101); the first positioning hole (103) is opened in the left end area of ​​the fixing ring (101); and the second positioning hole (104) is opened in the right end area of ​​the fixing ring (101).

3. The internal fixation device for limb fractures according to claim 2, characterized in that: The first positioning hole (103), the second positioning hole (104) and the bone are fixedly connected via steel nails (105); a threaded column (106) is fixedly connected to the middle position of the rear end of the fixing ring (101).

4. The internal fixation device for limb fractures according to claim 1, characterized in that: The connecting component (2) comprises a first mounting seat (201), a second mounting seat (202), a support bar (203) and a slide groove (204); the first mounting seat (201) is fixedly connected to the rear end of the clamping component (1); the second mounting seat (202) is fixedly connected to the rear end of the other clamping component (1); and threaded holes are provided at the front ends of the first mounting seat (201) and the second mounting seat (202).

5. The internal fixation device for limb fractures according to claim 4, characterized in that: The upper end of the first mounting seat (201) is fixedly connected with a support bar (203); the lower end of the second mounting seat (202) is provided with a slide groove (204); and the support bar (203) and the slide groove (204) are slidably connected.

6. The internal fixation device for limb fractures according to claim 4, characterized in that: The adjustment component (3) comprises an operating cavity (301), a straight tooth groove (302), a clamping block (303) and an avoidance groove (304); the straight tooth groove (302) of the support bar (203) is slidably connected inside the operating cavity (301).

7. The internal fixation device for limb fractures according to claim 6, characterized in that: A clamping block (303) is provided inside the operating cavity (301); the clamping block (303) is clamped and connected with the tooth grooves of the straight tooth grooves (302); An avoidance groove (304) matching with the sealing cover (4) is provided at the upper end of the operating chamber (301).

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