CN211325517U - Fracture adjusting and resetting device - Google Patents
Fracture adjusting and resetting device Download PDFInfo
- Publication number
- CN211325517U CN211325517U CN201921775253.0U CN201921775253U CN211325517U CN 211325517 U CN211325517 U CN 211325517U CN 201921775253 U CN201921775253 U CN 201921775253U CN 211325517 U CN211325517 U CN 211325517U
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- adjusting
- bone
- adjusting nut
- connecting rod
- fracture
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 26
- 208000010392 Bone Fractures Diseases 0.000 claims description 36
- 230000035876 healing Effects 0.000 abstract description 4
- 208000032170 Congenital Abnormalities Diseases 0.000 abstract description 2
- 206010061619 Deformity Diseases 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 206010063659 Aversion Diseases 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 30
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a fracture adjusting and resetting device, which comprises two adjusting nuts, at least two connecting blocks and a connecting rod, wherein the connecting blocks and the connecting rod are respectively fixed at the near end and the far end of a skeleton; the connecting rod is provided with a threaded part matched with the adjusting nut and a cylindrical part matched with two parallel round holes in the connecting block; two ends of one adjusting nut are respectively in threaded connection with a connecting rod, and the connecting block is sleeved on the two connecting rods connected with the two adjusting nuts at the same side through a round hole; the connecting block is provided with a threaded hole with the axis vertical to the round hole and is used for fixing the connecting block on a bone after a locking screw penetrates through the bone and is implanted into the bone; and the locking screw is used for implanting bone inside the adjusting nut in the adjusted position so as to lock the adjusting nut. The utility model discloses can realize the pressurization of fracture broken ends through adjusting nut under not demolising the screw, realize the axial pressurization effect, can change connecting rod length, realize the correction of the side angulation aversion of fracture broken ends, avoid the deformity healing.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a fracture adjustment resetting means.
Background
The fracture incision reduction internal fixation technology is the mainstream technology for treating fracture at present. Due to the shape, size and biological specificity of human bones, repeated drilling and screw position adjustment cannot be carried out on the bones during operation fixation, otherwise the holding force of the internal fixation on the bones is reduced. However, in actual practice, due to the difference in the reduction and fixation techniques and clinical experience of the operating physicians, the fracture end may not be reduced well after fixation, but cannot be adjusted, which may cause serious complications such as delayed union, nonunion, and abnormal union of the fracture, and may bring inconvenience in life and mental pain to the patients.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fracture adjustment resetting means to the technical defect who exists among the prior art.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a fracture adjusting and resetting device comprises two adjusting nuts, at least two connecting blocks and a connecting rod, wherein the connecting blocks and the connecting rod are respectively fixed at the near end and the far end of a bone; the connecting rod is provided with a threaded part matched with the adjusting nut and a cylindrical part matched with two parallel round holes in the connecting block; two ends of one adjusting nut are respectively in threaded connection with a connecting rod, and the connecting block is sleeved on the two connecting rods connected with the two adjusting nuts at the same side through a round hole; the connecting block is provided with a threaded hole with the axis vertical to the round hole and is used for fixing the connecting block on a bone after a locking screw penetrates through the bone and is implanted into the bone; and the locking screw is used for implanting bone inside the adjusting nut in the adjusted position so as to lock the adjusting nut.
Preferably, the locking screw is provided with a screw cap which is in threaded connection and matching with the threaded hole.
Preferably, the nut cap of the locking screw is of a regular polygon structure and contacts with the outer surface of the adjusting nut to prevent the adjusting screw thread from rotating.
Preferably, two round holes are symmetrically arranged in the connecting block, and the threaded hole is located between the two round holes.
Preferably, the connecting block is a plate having arc-shaped portions at both ends.
The utility model discloses following beneficial effect has:
1. after the fracture fixation is finished, the compression of the fracture end can be realized through the adjusting nut under the condition of not removing the screw, so that the fracture end is contacted more tightly, the fracture healing is promoted, and the axial compression effect is realized.
2. The length of the connecting rod is changed by adjusting one or two of the two adjusting nuts, so that the purpose of correcting angular displacement of the side of the fractured end is realized, and deformed healing is avoided.
3. For the case of nonunion, the gap between the broken ends of the fracture can be increased by adjusting the adjusting nut on the premise of not dismantling the original fixed object, the broken ends of the bone can be fully cleaned, and the bone can be pressurized and fixed again after the bone is implanted.
4. When the single connecting rod is fixed, the rotation and the displacement of the broken end of the fracture can be corrected, and the adjusting nut is screwed into the locking screw beside the adjusting nut after rotating to a satisfactory position, so that the rotation of the adjusting nut can be prevented from being limited.
Drawings
Fig. 1 is a combined schematic view of a fixing device in fracture adjustment and reduction.
Fig. 2-3 are a front view and a cross-sectional view along line a-a of a connecting block in a fracture adjustment reduction internal fixation device, respectively.
Fig. 4-5 are schematic diagrams of the front and left views of the locking screw in the internal fixation device for adjusting and reducing fracture.
Fig. 6 is a schematic view of a connecting rod in the internal fixation device for fracture adjustment and reduction.
Fig. 7-8 are schematic front and left views, respectively, of an adjusting nut in a fixation device in fracture adjustment reduction.
Fig. 9-10 are schematic front and right views, respectively, of a locking screw in a fracture adjustment reduction internal fixation device.
Fig. 11 is a schematic view of a broken bone using the internal fixation device for fracture adjustment and reduction.
Fig. 12 is a schematic view of the use of the internal fixation device for fracture adjustment and reduction.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-12, the fracture adjustment and reduction device of the present invention comprises two adjusting nuts 4, a plurality of connecting blocks 1 having two smooth round holes 1-1 arranged in parallel, respectively, and a connecting rod 3 engaged with the adjusting nuts 4 and the connecting blocks 1, wherein the connecting rod 3 has a threaded portion 3-1 engaged with the internal thread 4-1 of the adjusting nut 4 and a smooth cylindrical portion 3-2 engaged with the smooth round hole 1-1 of the connecting block 1; two ends of one adjusting nut 4 are respectively in threaded connection with one connecting rod 3, and a plurality of connecting blocks 1 are sleeved on the two connecting rods 3 connected with the two adjusting nuts 4 at the same side; the connecting block is provided with a threaded hole 1-2 of which the axis is vertical to the smooth round hole and is used for fixing the connecting block on the connecting rod after a locking screw penetrates through the connecting block and is implanted into a bone; and the locking screw is used for implanting bone inside the adjusting nut in the adjusted position so as to lock the adjusting nut.
The locking screw 2 is divided into a screw rod part 2-2 implanted into the bone and a threaded screw cap 2-1 matched with a threaded hole 1-2 on the connecting block 1.
Wherein the adjusting nut 4 is provided with an internal thread 4-1 and an external hexagonal shape 4-2 which are matched with the thread 3-1 in the threaded connecting rod 3.
The locking screw 5 is divided into a screw rod part 5-1 implanted into the bone and a screw cap 5-2 limiting the rotation of the adjusting nut 4, and is in a regular polygon structure, such as an external hexagon structure.
Specifically, when the fracture incision reduction fixation operation is performed, the fracture broken end is exposed and reduced, the connecting rod is connected with the adjusting nut, the connecting block penetrates through two ends of the connecting rod and is fixed on the proximal end 6-1 and the distal end 6-2 of the skeleton through the locking screw, the adjusting nut is adjusted to a proper position according to the reduction condition of the broken end, the locking screw is implanted into the inner side of the adjusting nut, the adjusting nut is prevented from rotating, and the operation is completed.
If the fracture end still has a gap, the adjusting nut can be screwed clockwise to realize the pressurization of the fracture end; for the case of nonunion, if a larger operation space is needed to clean the broken end of the bone, the adjusting nut can be adjusted counterclockwise to increase the fracture gap, and after the cleaning and the bone grafting are finished, the adjusting nut is adjusted clockwise to realize the pressurization of the broken end of the fracture; for the case of lateral angulation, one or two of the two adjusting nuts can be adjusted according to the angulation direction, the length of the connecting rod is changed, the purpose of correcting the lateral angulation displacement of the fracture broken end is achieved, and the deformity healing is avoided.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A fracture adjusting and resetting device is characterized by comprising two adjusting nuts, at least two connecting blocks and a connecting rod, wherein the connecting blocks and the connecting rod are respectively fixed at the near end and the far end of a bone; the connecting rod is provided with a threaded part matched with the adjusting nut and a cylindrical part matched with two parallel round holes in the connecting block; two ends of one adjusting nut are respectively in threaded connection with a connecting rod, and the connecting block is sleeved on the two connecting rods connected with the two adjusting nuts at the same side through a round hole; the connecting block is provided with a threaded hole with the axis vertical to the round hole and is used for fixing the connecting block on a bone after a locking screw penetrates through the bone and is implanted into the bone; and the locking screw is used for implanting bone inside the adjusting nut in the adjusted position so as to lock the adjusting nut.
2. The fracture adjustment and reduction device of claim 1, wherein the locking screw has a threaded nut that threadedly engages the threaded bore.
3. The device for adjusting and reducing bone fracture according to claim 1, wherein the nut of the locking screw has a regular polygonal structure and contacts with the outer surface of the adjusting nut to prevent the adjusting screw from rotating.
4. The device for adjusting and reducing bone fracture according to claim 1, wherein two circular holes are symmetrically arranged in the connecting block, and the threaded hole is located between the two circular holes.
5. The device for adjusting and reducing bone fracture according to claim 1, wherein the connecting block is a plate having arc-shaped portions at both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921775253.0U CN211325517U (en) | 2019-10-21 | 2019-10-21 | Fracture adjusting and resetting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921775253.0U CN211325517U (en) | 2019-10-21 | 2019-10-21 | Fracture adjusting and resetting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325517U true CN211325517U (en) | 2020-08-25 |
Family
ID=72132537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921775253.0U Active CN211325517U (en) | 2019-10-21 | 2019-10-21 | Fracture adjusting and resetting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211325517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120775A (en) * | 2020-09-26 | 2020-12-25 | 宋若怡 | A split type elastic pressure regulating steel plate |
| CN113842197A (en) * | 2021-09-28 | 2021-12-28 | 中国人民解放军空军军医大学 | An internal fixation device for posterolateral fracture of the tibial plateau |
-
2019
- 2019-10-21 CN CN201921775253.0U patent/CN211325517U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112120775A (en) * | 2020-09-26 | 2020-12-25 | 宋若怡 | A split type elastic pressure regulating steel plate |
| CN113842197A (en) * | 2021-09-28 | 2021-12-28 | 中国人民解放军空军军医大学 | An internal fixation device for posterolateral fracture of the tibial plateau |
| CN113842197B (en) * | 2021-09-28 | 2023-06-02 | 中国人民解放军空军军医大学 | An internal fixation device for posterolateral tibial plateau fractures |
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