CN213098242U - Fixing device for locking steel plate intramedullary nail - Google Patents
Fixing device for locking steel plate intramedullary nail Download PDFInfo
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- CN213098242U CN213098242U CN202021127434.5U CN202021127434U CN213098242U CN 213098242 U CN213098242 U CN 213098242U CN 202021127434 U CN202021127434 U CN 202021127434U CN 213098242 U CN213098242 U CN 213098242U
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- steel plate
- intramedullary nail
- fixing device
- screw hole
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Abstract
The utility model relates to the technical field of orthopedic medical instruments. The utility model provides a locking steel plate intramedullary nail fixing device, include: intramedullary nail, connecting structure, steel plate and screw hole; one end of the steel plate is of a cloverleaf structure, the other end of the steel plate is of a strip shape and is connected with the intramedullary nail structure through the connecting structure, the screw hole is located on the intramedullary nail and the steel plate, and the inner wall of the steel plate is provided with threads. Prevent the fracture of coaptation board stress concentration nature, can also reduce the oppression to local cortex lycii vascular network to the necrosis that local cortex lycii appears because of blood supply is not enough that significantly reduces promotes bone healing.
Description
Technical Field
The utility model relates to the technical field of orthopedic medical instruments, in particular to a locking steel plate intramedullary nail fixing device for fixation of eversion orthopedic surgery.
Background
In orthopedic treatment, fracture of long bones of limbs is a common disease and a frequently encountered disease clinically, and is mainly caused by natural disasters such as external force impact, falling, traffic accidents, earthquakes and the like. For fractures, the mature technique is intramedullary nail therapy, but some are good indicators of steel plate fixation, but for smaller proximal or distal fractures, steel plate fixation is certainly a better option. When using steel plate fixation, clinicians need to consider two situations: if the fixation is too stable, the formation of callus can be influenced, and the fracture healing speed is further influenced; if the fixation is unstable, local stress concentration occurs, and fatigue fracture of the steel sheet is likely to occur. Most notably, however, the steel plate is directly contacted with the bone surface and is pressurized, so that the periosteal vascular network is compressed, the blood supply of cortical bone is affected, local cortical bone necrosis occurs, the healing speed of the fracture is finally slowed down, and even delayed or non-healing phenomena of the fracture occur. In ankle surgery, eversion achieves the aim of correction by auxiliary screw fixation of metatarsal osteotomy correction at present, but in clinic, eversion is complex, moderate-severe eversion relates to the condition that the hallux valgus angle and the included angle between the first metatarsal and the second metatarsal of the first metatarsal distal end fixed angle exist at the same time, and the single osteotomy is difficult to achieve satisfactory correction at the same time.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model provides a locking steel plate intramedullary nail fixing device which is used for partial orthopedic operations.
In order to achieve the above object, the present invention provides a locking steel plate intramedullary nail fixing device, comprising: intramedullary nail, connecting structure, steel plate and screw hole; one end of the steel plate is of a cloverleaf structure, the other end of the steel plate is of a strip shape and is connected with the intramedullary nail structure through the connecting structure, the screw hole is located on the intramedullary nail and the steel plate, and the inner wall of the steel plate is provided with threads.
Preferably, each blade of the clover-shaped structure at one end of the steel plate is provided with at least 1 screw hole, and the strip-shaped structure at the other end of the steel plate is provided with at least 3 screw holes.
Preferably, said intramedullary nail has at least 3 of said screw holes.
Preferably, the width of the clover-shaped structure at one end of the steel plate is at least 12mm, and the length of the strip-shaped structure at the other end of the steel plate is at least 25mm and the width of the strip-shaped structure is at least 10 mm; the length of the intramedullary nail is at least 25mm, and the width of the intramedullary nail is at least 10 mm; the diameter of the screw hole is at least 2 mm.
Preferably, any two of the screw holes are spaced apart by at least 10 mm.
Compared with the prior art, the technical scheme of the utility model, its beneficial effect lies in:
the utility model provides a locking steel plate intramedullary nail fixing device, include: intramedullary nail, connecting structure, steel plate and screw hole; one end of the steel plate is of a cloverleaf structure, the other end of the steel plate is of a strip shape and is connected with the intramedullary nail structure through the connecting structure, the screw hole is located on the intramedullary nail and the steel plate, and the inner wall of the steel plate is provided with threads. Prevent the fracture of coaptation board stress concentration nature, can also reduce the oppression to local cortex lycii vascular network to the necrosis that local cortex lycii appears because of blood supply is not enough that significantly reduces promotes bone healing. The utility model discloses a perfect adaptation of locking steel sheet and intramedullary nail, can carry out the preflex to distal end steel sheet part, make fixed metatarsal head direction change, correct metatarsal head's inclination, match with first phalanx near-end articular surface more, through a fixing device, effectively solved and cut the correction that the bone can not reach three kinds of angles simultaneously, distal end steel sheet part is located the metatarsal inboardly, make the inboard cortex bone of distal end metatarsal meet with near-end metatarsal outside cortex bone, will cut off the sclerotin through the steel sheet screw and fix as to the cortex junction, the healing at osteotomy position has been increased.
Drawings
Fig. 1 is a structural diagram of a locking steel plate intramedullary nail fixing device according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, the present invention provides a locking steel plate intramedullary nail fixing device, which comprises: an intramedullary nail 1, a connecting structure 2, a steel plate 3 and a screw hole 4; one end of the steel plate 3 is of a clover-leaf structure, the other end of the steel plate is of a strip shape and is structurally connected with the intramedullary nail 1 through the connecting structure 2, the screw hole 4 is positioned on the intramedullary nail 1 and the steel plate 3, and the inner wall of the steel plate is provided with threads.
In a specific embodiment, the intramedullary nail 1 is positioned in a marrow cavity, and the intramedullary position is fixed through a screw hole and a screw to prevent displacement; the steel plate 3 is positioned on the outer side of the bone body, and the position of the bone body is fixed through screw holes and screws to prevent displacement; the connecting structure 2 can be bent to adjust to an optimal angle for facilitating surgery and achieving a surgery effect.
In another specific embodiment, the intramedullary nail fixing device of locking steel plate is used for the operation of hallux valgus, the intramedullary nail 1 structure is positioned inside the medullary cavity of metatarsal bones, and the intramedullary position is fixed by screw holes and screws; the steel plate 3 is positioned on the outer side of the phalanges and is used for intramedullary position fixing through screw holes and screws; and bending the connecting structure 2 to adjust the connecting structure to an optimal angle so as to facilitate the hallux valgus operation and achieve the operation effect.
In another specific embodiment, each blade of the clover-shaped structure at one end of the steel plate is provided with at least 1 screw hole, and the bar-shaped structure at the other end of the steel plate is provided with at least 3 screw holes. The intramedullary nail is provided with at least 3 screw holes. The width of the clover-shaped structure at one end of the steel plate is at least 12mm, and the length and the width of the strip-shaped structure at the other end of the steel plate are at least 25mm and at least 10mm respectively; the length of the intramedullary nail is at least 25mm, and the width of the intramedullary nail is at least 10 mm; the diameter of the screw hole is at least 2 mm. The interval of any two screw holes is at least 10 mm.
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 modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (5)
1. A locking plate intramedullary nail fixation device, comprising: an intramedullary nail (1), a connecting structure (2), a steel plate (3) and a screw hole (4); one end of the steel plate (3) is of a clover-leaf structure, the other end of the steel plate is of a strip shape and passes through the connecting structure (2) and the intramedullary nail (1) to be structurally connected, the screw hole (4) is located on the intramedullary nail (1) and the steel plate (3), and the inner wall of the steel plate is provided with threads.
2. The intramedullary nail fixing device with locking steel plate according to claim 1, wherein each blade of the clover-leaf structure at one end of the steel plate (3) has at least 1 of said screw holes (4), and the bar structure at the other end of the steel plate (3) has at least 3 of said screw holes (4).
3. The intramedullary nail fixation device of claim 1, wherein said intramedullary nail (1) has at least 3 of said screw holes (4).
4. The intramedullary nail fixation device with locking steel plates according to claim 1, wherein the width of the clover-leaf structure at one end of the steel plate (3) is at least 12mm, the length of the bar-shaped structure at the other end of the steel plate (3) is at least 25mm, and the width is at least 10 mm; the intramedullary nail (1) has a length of at least 25mm and a width of at least 10 mm; the diameter of the screw hole (4) is at least 2 mm.
5. The intramedullary nail fixing device according to claim 1, characterized in that any two of said screw holes (4) are spaced apart by at least 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127434.5U CN213098242U (en) | 2020-06-17 | 2020-06-17 | Fixing device for locking steel plate intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021127434.5U CN213098242U (en) | 2020-06-17 | 2020-06-17 | Fixing device for locking steel plate intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213098242U true CN213098242U (en) | 2021-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021127434.5U Active CN213098242U (en) | 2020-06-17 | 2020-06-17 | Fixing device for locking steel plate intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213098242U (en) |
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2020
- 2020-06-17 CN CN202021127434.5U patent/CN213098242U/en active Active
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