CN220608391U - Femoral neck power cross nail plate system - Google Patents
Femoral neck power cross nail plate system Download PDFInfo
- Publication number
- CN220608391U CN220608391U CN202321747819.5U CN202321747819U CN220608391U CN 220608391 U CN220608391 U CN 220608391U CN 202321747819 U CN202321747819 U CN 202321747819U CN 220608391 U CN220608391 U CN 220608391U
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- screw
- femoral neck
- plate
- head
- threads
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- 210000002436 femur neck Anatomy 0.000 title claims abstract description 42
- 210000001981 hip bone Anatomy 0.000 claims description 5
- 239000011295 pitch Substances 0.000 claims description 2
- 208000014674 injury Diseases 0.000 abstract description 5
- 208000020089 femoral neck fracture Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000008733 trauma Effects 0.000 abstract description 3
- 208000008924 Femoral Fractures Diseases 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000002513 implantation Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 210000001624 hip Anatomy 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 208000001132 Osteoporosis Diseases 0.000 description 1
- 230000002512 anti-withdrawal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000002391 femur head Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a femoral neck power cross screw plate system, which belongs to the technical field of internal fixation of femoral fracture, mainly solves the problem of fixed installation and resetting technology after femoral neck fracture, inherits the stability of a DHS power hip screw system, solves the defect of large operation complex trauma, inherits the minimally invasive effect of fixing three hollow screws, effectively forms a reasonable stable relationship, utilizes the stability of triangles to deviate the screws to different degrees after implantation, adopts double-lead cone threads when a locking screw 3 passes through a plate, effectively prevents the risk of screw withdrawal, ensures that an included angle is formed between an anti-rotation screw 4 and a main screw 2, ensures that all parts have mutually restricted relationship after the head part of the screw is fixed by adopting double-head threads and is integrally assembled and installed, has good stability, and has small trauma and short operation time, and only needs to open 2 or 3 small openings in the whole operation.
Description
Technical Field
A femoral neck power crossed nail plate system belongs to the technical field of medical appliances for femoral neck fracture and mainly relates to a femoral neck fracture fixing and resetting technology.
Background
Femoral neck fractures are a clinically common fracture type, with low energy injuries frequently seen in middle-aged and elderly patients and high energy injuries in young patients. The existing main internal fixation mode is a DHS dynamic hip screw system which has better mechanical stability, but is complex to operate, larger in wound and long in operation time; the other three hollow nails are fixed in the device, which belongs to minimally invasive surgery, but the mechanical stability is poor, the device can not go down as soon as possible after surgery, and the recovery time is long.
In order to improve the curative effect of internal fixation and reduce the risks of complications and failure, the internal fixation is designed to be a minimally invasive type which can give consideration to the strength of a dynamic hip screw system (DHS) and three hollow nails, namely a femoral neck dynamic cross nail plate system, and compared with the dynamic hip screw system (DHS), the femoral neck dynamic cross nail plate system is simple to operate, has smaller incision, causes less trauma to bones, occupies small space, and is more suitable for patients with small femoral neck diameter; compared with the fixation of three hollow nails, the screw has higher biomechanical strength; meanwhile, the femur neck power cross nail plate system is designed to allow the power rod to slide and shrink by 15mm in the nail plate sleeve without protruding outwards, so that the irritation to soft tissues is reduced, and the occurrence rate of thigh pain after operation of a patient is reduced.
Disclosure of Invention
According to the technical problems, the utility model discloses a femur neck power cross nail spanner system, which is a minimally invasive technology and is used for reasonably and effectively fixing and resetting a broken femur neck.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the femoral neck power cross nail plate system consists of a femoral neck angle plate 1, a main nail 2, a locking screw 3 and an anti-rotation screw 4, wherein the locking screw 3 and the femoral neck angle plate 1 can be firmly locked without looseness after being connected; after the femoral neck angle plate 1, the main nail 2 and the anti-rotation screw 4 are matched, the anti-rotation screw 4 and the main nail 2 are connected without obvious looseness, and the main nail 2 and the anti-rotation screw 4 can slide in the femoral neck angle plate 1 at the same time and do not deviate from each other; the femoral neck angle plate 1 is characterized in that two plate sides of the femoral neck angle plate 1 are horizontally arranged and form an included angle of 130 degrees, two double-lead conical threaded holes are designed on the plate sides of the included angle of 130 degrees, the threaded holes are vertically distributed with the plate on the same surface, the horizontal plate sides are connected with a main nail 2, the main nail 2 is provided with a threaded hole which forms an offset angle of 7.5 degrees with the center of the main nail 2, and when an anti-rotation screw 4 is screwed in, the anti-rotation screw just enters into hip bone to form a reasonable triangular fixing relation
Preferably, the screw head threads of the anti-rotation screw 4 are double-headed threads, the screw tail is single-headed threads, the screw pitches of the two screw threads of the screw head and the screw tail are different, the screw head is fixed on the main screw 2, and the screw tail is locked in the hip bone.
Preferably, the head of the locking screw 3 is a double-lead conical thread, the head is fixed on the femoral neck angle plate 1, the tail is a single thread, and the locking screw is fixed in the femoral neck.
The utility model has the beneficial effects that: the femoral neck power cross nailing plate system can bring good medical market expectation, and can acquire excellent economic benefit and social benefit, at present, the femoral neck power cross nailing plate system has formed a new development trend, and the inventor grasps the opportunity, follows the development trend of academic trend, and purposefully develops the femoral neck power cross nailing plate system, and the three-dimensional effective fixation is realized, and the minimally invasive time-saving and labor-saving effects are realized.
Drawings
FIG. 1 is a schematic diagram of the combination of the present utility model.
Fig. 2 is a schematic view of a femoral neck angle plate 1 of the present utility model.
FIG. 3 is a schematic view of the anti-rotation screw 4 of the present utility model
FIG. 4 is a schematic view of a locking screw 3 according to the present utility model
FIG. 5 is a schematic view of the main nail 2 of the present utility model
Detailed Description
The following technical solutions in this embodiment will be clearly described in conjunction with the accompanying drawings of the present utility model, and the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In one embodiment of the present utility model, as shown in fig. 1, when the femoral neck of a patient breaks, a small opening is formed at the head end of the femur, the femoral neck angle plate 1 is inserted into the outside of the femur head along the small opening, the placement position is adjusted under the action of the imaging machine, the horizontal end of the femoral neck angle plate 1 faces the small opening, the main nail 2 is inserted from the horizontal end of the femoral neck angle plate 1, the anti-rotation screw 4 is inserted along the threaded hole of the main nail 2, and the end of the anti-rotation screw 4 is fixed in the hip bone because the anti-rotation screw 4 has a naturally formed included angle with the main nail 2. According to the position of the femur neck angle plate 1 after adjustment, the fractured femur neck is determined, a small opening is formed in one side of the femur neck angle plate, the locking screw 3 is screwed in, the second locking screw 3 is screwed in according to fracture conditions, the whole operation only needs to be performed by opening 2 or 3 small openings for feeding the femur neck, a stable triangle relationship is formed after combination construction, each screw has an anti-withdrawal function, and therefore even the old people with osteoporosis can still be firmly fixed.
Claims (3)
1. The femoral neck power cross nail plate system consists of a femoral neck angle plate (1), a main nail (2), a locking screw (3) and an anti-rotation screw (4), wherein the locking screw (3) and the femoral neck angle plate (1) can be firmly locked after being connected, no obvious looseness exists, after the femoral neck angle plate (1), the main nail (2) and the anti-rotation screw (4) are matched, the anti-rotation screw (4) and the main nail (2) are not obviously loosened after being connected, and the main nail (2) and the anti-rotation screw (4) can simultaneously slide in the femoral neck angle plate (1) and cannot deviate from each other; the femoral neck angle plate (1) is characterized in that two plates of the femoral neck angle plate (1) are horizontally arranged at an included angle of 130 degrees on one side, two double-lead conical threaded holes are designed on the 130-degree angle clamping plate on the other side, the threaded holes are perpendicular to the plates on the same plane, a horizontal plate is connected with a main nail (2), a threaded hole is formed in the main nail (2), an offset angle of 7.5 degrees is formed between the threaded hole and the center of the main nail, and when an anti-rotation screw (4) is screwed in, the screw just enters into a hip bone, so that a reasonable triangular fixing relation is formed.
2. The femoral neck power cross screw plate system according to claim 1, wherein the screw head threads of the anti-rotation screw (4) are double-headed threads, the screw tail is single-headed threads, the screw pitches of the two threads of the screw head and the screw tail are different, the screw head is fixed on the main screw (2), and the screw tail is locked in the hip bone.
3. The femoral neck dynamic cross screw plate system according to claim 1, wherein the head of the locking screw (3) is a double lead conical screw thread, the head is fixed on the femoral neck angle plate (1), the tail is a single screw thread, and the head is fixed in the femoral neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321747819.5U CN220608391U (en) | 2023-07-01 | 2023-07-01 | Femoral neck power cross nail plate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321747819.5U CN220608391U (en) | 2023-07-01 | 2023-07-01 | Femoral neck power cross nail plate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220608391U true CN220608391U (en) | 2024-03-19 |
Family
ID=90228442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321747819.5U Active CN220608391U (en) | 2023-07-01 | 2023-07-01 | Femoral neck power cross nail plate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220608391U (en) |
-
2023
- 2023-07-01 CN CN202321747819.5U patent/CN220608391U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |