CN215384910U - Biological femoral stem prosthesis and periprosthetic fracture fixing system - Google Patents
Biological femoral stem prosthesis and periprosthetic fracture fixing system Download PDFInfo
- Publication number
- CN215384910U CN215384910U CN202121451593.5U CN202121451593U CN215384910U CN 215384910 U CN215384910 U CN 215384910U CN 202121451593 U CN202121451593 U CN 202121451593U CN 215384910 U CN215384910 U CN 215384910U
- Authority
- CN
- China
- Prior art keywords
- femoral stem
- stem prosthesis
- prosthesis
- locking
- nail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a biological femoral stem prosthesis and a peripheral fracture fixing system of the prosthesis, which comprise the femoral stem prosthesis, a fixing frame assembly consisting of a long side of a fixing frame, a short side of the fixing frame and a connecting rod, a modified intramedullary nail, an auxiliary positioning rod and a locking and pressurizing steel plate, wherein the long side of the fixing frame is provided with a plurality of positioning holes, the auxiliary positioning rod movably penetrates through the positioning holes, the upper part and the lower part of the modified intramedullary nail are both provided with screw structures for fixing, a plurality of preset threaded fixing holes are arranged on the modified intramedullary nail and the femoral stem prosthesis at intervals, the locking and pressurizing steel plate is arranged on the outer side of a femur, and a locking nail is sequentially sent into the locking and pressurizing steel plate and the femoral stem prosthesis by the auxiliary positioning rod from outside to inside. By adopting the technical scheme, the biological femoral stem prosthesis and the peripheral fracture fixing system of the prosthesis can solve the problems that the hip joint revision damages the original bone, the femoral stem prosthesis has poor stability, the peripheral fracture of the prosthesis cannot be effectively fixed and treated and the like in the prior art.
Description
Technical Field
The utility model relates to a femoral stem prosthesis and a fixing system for treating fracture around the prosthesis after hip replacement, belonging to the technical field of orthopedic medical instruments.
Background
With the improvement of medical level, the number of artificial hip joint replacements is increased year by year, the number of fractures around the femoral prosthesis is increased, and the risk of bone cement type femoral stem prosthesis revision surgery is increased. At present, the fixation operation of the fracture around the femoral stem prosthesis is difficult, the main reason is that the fracture around the femoral stem prosthesis is fixed by a single cortical screw or wound by a titanium cable, the fixation mode easily causes the problems of large operation trauma, more bleeding, long operation time, short working length of the screw, easy loosening, unstable fracture fixation and the like, and when the fracture around the prosthesis occurs to a patient, the patient can not be effectively and simply treated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provide a novel biological femoral stem prosthesis and a peripheral fracture fixing system of the prosthesis.
The technical scheme of the utility model is as follows:
the utility model provides a novel biological type femoral stem prosthesis and fixing system of fracture around prosthesis, includes the femoral stem prosthesis to and the mount subassembly of compriseing the mount long limit, mount minor face and connecting rod, wherein the mount minor face sets up in the femoral stem prosthesis and through two connecting rods and the outer mount long limit of femoral stem prosthesis be connected together fixedly, the mount still is provided with a set of locating hole simultaneously on the long limit, the end and the lock pin cooperation that the locating hole was passed in the activity of assistance-localization real-time pole, through the lock pin is in the same place with the locking pressurization steel sheet of the external setting of femoral stem prosthesis and femoral stem prosthesis connection fixation.
Furthermore, a modified intramedullary nail is arranged in the femoral stem prosthesis, the upper part and the lower part of the modified intramedullary nail are respectively provided with a screw rod part, and the lower end of the short side of a fixing frame arranged in the femoral stem prosthesis is connected with the screw rod part arranged at the upper part of the modified intramedullary nail arranged in the femoral stem prosthesis through threads.
Furthermore, a nail channel matched with the locking nail is arranged on the locking compression steel plate, thread fixing holes matched with the locking nail are arranged on the femoral stem prosthesis and the reconstruction intramedullary nail, and the locking compression steel plate and the femoral stem prosthesis are fixed together through the locking nail.
Furthermore, the number of the positioning holes is 6-9, the positioning holes comprise 2 inclined positioning holes and 4-7 positioning holes vertical to the long edge of the fixing frame, and each positioning hole is collinear with the axis of the threaded fixing hole on the femoral stem prosthesis and the reconstructed intramedullary nail. The thread fixing hole in the upper end of the femoral stem prosthesis is obliquely arranged relative to the locking nail, and the positioning hole on the long edge of the fixing frame matched with the thread fixing hole is obliquely arranged coaxially with the locking nail.
Furthermore, the locking compression steel plate and the femoral stem prosthesis are matched with the anatomical curved surface of the femur.
The utility model has the advantages and beneficial effects that:
1. the utility model provides a novel biological femoral stem prosthesis and a peripheral fracture fixing system of the prosthesis, which can solve the problems that the femoral stem prosthesis and peripheral fracture are difficult to fix in an operation and cannot be effectively and simply treated in the prior art by adopting the fixing system consisting of the femoral stem prosthesis, a fixing frame assembly, an auxiliary positioning rod, a locking pressurizing steel plate and a modified intramedullary nail.
2. According to the novel biological femoral stem prosthesis and the system for fixing fractures around the prosthesis, the locking nail is sequentially sent into the locking pressurizing steel plate, the femoral stem prosthesis and the modified intramedullary nail by the auxiliary positioning rod, so that the locking nail can more stably lock the locking pressurizing steel plate, the femoral stem prosthesis and the modified intramedullary nail, and the locking nail is not easy to loosen.
Drawings
FIG. 1 is a schematic view of a biological femoral stem prosthesis and a periprosthetic fracture fixation system according to the present invention;
FIG. 2 is a schematic view of a modified intramedullary nail of the biological femoral stem prosthesis and the periprosthetic fracture fixation system of the present invention;
FIG. 3 is a front view of the locking pin of the biological femoral stem prosthesis and the periprosthetic fracture fixation system of the present invention;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is a front view of the auxiliary positioning rod of the biological femoral stem prosthesis and the periprosthetic fracture fixation system of the present invention;
fig. 6 is a side view of fig. 5.
In the figure, 1, a femoral stem prosthesis, 2, a fixing frame assembly, 21, a fixing frame long edge, 22, a fixing frame short edge, 23, a connecting rod, 3, an auxiliary positioning rod, 4, a positioning hole, 5, a locking and pressurizing steel plate, 6, a locking nail and 7, a modified intramedullary nail are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
While the accompanying drawings, which form a part of this application, serve to provide a further understanding of the utility model, the exemplary embodiments of the utility model and their description serve to explain the utility model and do not constitute a limitation of the utility model.
Example 1:
referring to fig. 1 to 6, a novel biological femoral stem prosthesis and a peripheral fracture fixation system of the prosthesis, including a femoral stem prosthesis 1, a fixing frame assembly 2, an auxiliary positioning rod 3, a locking compression steel plate 5 and a modified intramedullary nail 7, wherein the fixing frame assembly 2 is a structure composed of a fixing frame long side 21, a fixing frame short side 22 and a connecting rod 23, and the fixing frame short side 22 is arranged in the femoral stem prosthesis 1 and is connected and fixed with the fixing frame long side 21 outside the femoral stem prosthesis 1 through the two connecting rods 23. The femoral stem prosthesis comprises a fixing frame, and is characterized in that a group of positioning holes 4 are formed in a long edge 21 of the fixing frame, the number of the positioning holes 4 is 6-9, the positioning holes 4 comprise 2 positioning holes 4 with inclined axes and 4-7 positioning holes 4 with axes perpendicular to the long edge 21 of the fixing frame, an auxiliary positioning rod 3 movably penetrates through the positioning holes 4, a threaded hole is formed in the lower end face of a short edge 22 of the fixing frame and is in fit connection with a screw rod part at the upper end of a modified intramedullary nail 7 (shown in figure 2), the modified intramedullary nail 7 is embedded into a femoral medullary cavity in the femoral stem prosthesis 1, and a locking pressurizing steel plate 5 is arranged on the outer side of the femoral stem prosthesis 1 and is matched with a femoral anatomical curved surface. The locking compression steel plate 5 is provided with a nail channel (with or without threads in the nail channel) matched with the locking nail 6, the femoral stem prosthesis 1 and the reconstruction intramedullary nail 7 are both provided with thread fixing holes matched with the locking nail 6, and the locking compression steel plate 5 and the femoral stem prosthesis 1 are fixed together through the locking nail 6.
The threaded fixing holes in the upper end of the femoral stem prosthesis 1 are obliquely arranged for treating the fracture between the femoral trochanters, the positioning holes 4 on the long sides 21 of the fixing frame matched with the threaded fixing holes are coaxially and obliquely arranged with the positioning holes (shown in figure 1), the number of the positioning holes is 2, the auxiliary positioning rods 3 (shown in figures 5 and 6) on the upper portion of the auxiliary positioning rods penetrate through the hexagonal cylinder parts at the tail ends of the positioning holes 4 which are obliquely arranged to be matched with the hexagonal grooves (shown in figures 3 and 4) at the end parts of the locking nails 6, and the locking nails 6 are sequentially conveyed into the locking pressurizing steel plate 5 and the femoral stem prosthesis 1 from left to right (namely from outside to inside) by rotating the auxiliary positioning rods 3.
The rest of the positioning holes 4 on the long side 21 of the fixing frame are horizontally arranged (namely vertically arranged with the long side of the fixing frame) and are matched with the fixing frame, nail channels matched with the locking nails 6 are arranged at corresponding positions on the locking and pressurizing steel plate 5, threaded fixing holes matched with the locking nails 6 are also arranged at corresponding positions on the femoral stem prosthesis 1 and the reconstruction intramedullary nail 7, and the threaded fixing holes arranged on the locking and pressurizing steel plate 5, the femoral stem prosthesis 1 and the reconstruction intramedullary nail 7 are collinear with the axes of the corresponding positioning holes 4.
According to the novel biological femoral stem prosthesis and the peripheral fracture fixing system of the prosthesis, the fixing system consisting of the femoral stem prosthesis 1, the fixing frame component 2, the auxiliary positioning rod 3, the locking pressurizing steel plate 5 and the modified intramedullary nail 7 is adopted, so that the problems that the femoral stem prosthesis 1 and peripheral fracture are difficult to fix in an operation, and effective and simple treatment cannot be achieved in the prior art can be solved by the fixing system.
Further, be provided with a screw hole of being convenient for spiro union transformation intramedullary nail 7 upper end screw rod on the lower terminal surface of mount minor face 22, the screw rod of fixing frame subassembly 2 connection transformation intramedullary nail 7 upper end promptly, back mount subassembly 2 will be stabilized after being connected together, further auxiliary positioning pole 3 sends locking pressurizing steel plate 5 into with the locking nail 6 in proper order, femoral stem prosthesis 1 with transform among the intramedullary nail 7, the auxiliary positioning pole 3 that can be accurate through on the mount subassembly 2 promptly lets the locking nail 6 pass through femoral stem prosthesis 1 and transform the screw thread fixed orifices on the intramedullary nail 7, make this locking nail 6 can more firm lock locking pressurizing steel plate 5, femoral stem prosthesis 1 and transform intramedullary nail 7, and locking nail 6 self is not fragile. The position for fixing the locking nail 6 can be adjusted according to the actual requirement by arranging a plurality of threaded fixing holes, the number of the positioning holes 4 is reasonably arranged, so that the locking nail 6 can be better locked on the locking pressurizing steel plate 5 and the femoral stem prosthesis 1, the femoral stem prosthesis 1 is favorably and firmly connected in the femur, further, the number of nail channels on the locking pressurizing steel plate 5 is the same as that of the positioning holes 4, the axes of the nail channels and the positioning holes 4 are collinear, namely, the number of the nail channels on the locking pressurizing steel plate 5 is 6-9, wherein 4-7 horizontal nail channels at the lower end of the locking pressurizing steel plate 5 are used for conveniently locking the femoral stem prosthesis 1 by the locking nail 6, 2 inclined nail channels at the upper end are used for conveniently locking the locking nail 6 when the intertrochanteric fracture occurs, and further, the locking pressurizing steel plate 5 is matched with the anatomical curved surface of the femur, the locking bone fracture plate can be better attached to the femur, and the healing of the fracture of a patient is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a fracture fixing system around biological type femoral stem prosthesis and prosthesis, includes femoral stem prosthesis (1), its characterized in that: still include the mount subassembly (2) of constituteing by the long limit of mount (21), mount minor face (22) and connecting rod (23), wherein mount minor face (22) set up in femoral stem prosthesis (1) and through connecting rod (23) with the outer long limit of mount (21) of femoral stem prosthesis (1) be connected fixedly together, be provided with a set of unthreaded locating hole (4) on the long limit of mount (21) simultaneously, the end and the lock pin (6) cooperation that each locating hole (4) was passed in assistance-localization real-time (3) activity, through lock pin (6) are in the same place with femoral stem prosthesis (1) outer locking pressurization steel sheet (5) that set up with femoral stem prosthesis (1) are connected fixedly.
2. The biologic femoral stem prosthesis and periprosthetic fracture fixation system of claim 1, wherein: the lower end of the short side (22) of the fixing frame arranged in the femoral stem prosthesis (1) is connected with a screw rod part arranged in the femoral stem prosthesis (1) and used for transforming the upper end of the intramedullary nail (7) through threads.
3. The biologic femoral stem prosthesis and periprosthetic fracture fixation system of claim 2, wherein: the locking compression steel plate (5) is provided with a nail channel matched with the locking nail (6), the femoral stem prosthesis (1) and the reconstruction intramedullary nail (7) are provided with a thread fixing hole matched with the locking nail (6), and the locking compression steel plate (5) and the femoral stem prosthesis (1) are fixed together through the locking nail (6).
4. The biologic femoral stem prosthesis and periprosthetic fracture fixation system of claim 3, wherein: the number of the positioning holes (4) is 6-9, the positioning holes comprise 2 inclined positioning holes (4) and 4-7 positioning holes (4) vertical to the long edge (21) of the fixing frame, and each positioning hole (4) is collinear with the axis of a threaded fixing hole on the femoral stem prosthesis (1) and the reconstructed intramedullary nail (7).
5. The biologic femoral stem prosthesis and periprosthetic fracture fixation system of claim 4, wherein: the thread fixing hole in the upper end of the femoral stem prosthesis (1) and the locking nail (6) are arranged in a relatively inclined mode, and the positioning hole (4) on the long edge (21) of the fixing frame matched with the thread fixing hole is coaxially arranged in an inclined mode.
6. The bioprosthetic femoral stem prosthesis and periprosthetic fracture fixation system according to any one of claims 1 to 5, wherein: the locking compression steel plate (5) and the femoral stem prosthesis (1) are matched with the femur anatomical curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451593.5U CN215384910U (en) | 2021-06-29 | 2021-06-29 | Biological femoral stem prosthesis and periprosthetic fracture fixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451593.5U CN215384910U (en) | 2021-06-29 | 2021-06-29 | Biological femoral stem prosthesis and periprosthetic fracture fixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215384910U true CN215384910U (en) | 2022-01-04 |
Family
ID=79642786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121451593.5U Active CN215384910U (en) | 2021-06-29 | 2021-06-29 | Biological femoral stem prosthesis and periprosthetic fracture fixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215384910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115192270A (en) * | 2022-08-16 | 2022-10-18 | 无锡市第九人民医院 | Hip joint prosthesis revision femoral stem with interlocking nail |
-
2021
- 2021-06-29 CN CN202121451593.5U patent/CN215384910U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115192270A (en) * | 2022-08-16 | 2022-10-18 | 无锡市第九人民医院 | Hip joint prosthesis revision femoral stem with interlocking nail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2782511B1 (en) | Implant system for bone fixation | |
| CN110974383A (en) | Femoral intramedullary nail device | |
| CN215384910U (en) | Biological femoral stem prosthesis and periprosthetic fracture fixing system | |
| CN209220462U (en) | A kind of near end of thighbone Medullary fixation device | |
| CN106821479A (en) | Fractured near end of thighbone improves intramedullary nail inner fixing device | |
| CN204484283U (en) | A kind ofly promote the bionical inner fixing device of the porous of union of fracture | |
| CN104323847A (en) | Intramedullary nail with lock | |
| CN107080581A (en) | Elastic internal fixation system and pressure-adjustable hold-down bars | |
| CN211131341U (en) | Porous lightweight femoral neck hollow screw based on 3D printing | |
| RU128482U1 (en) | LOCK FOR OSTEOSYNTHESIS OF FEMAL PROXIMAL FRACTURES | |
| CN202060854U (en) | Bone fracture plate with combination locking holes | |
| CN209864022U (en) | Thighbone LISS steel plate sighting device | |
| CN112006768A (en) | Combined fixing device for femoral intramedullary nail steel plate | |
| CN208710033U (en) | A kind of shin bone Medullary fixation device | |
| CN206852653U (en) | Fractured near end of thighbone improves intramedullary nail inner fixing device | |
| CN102961175B (en) | External fixing and locking nail plate system for treating femoral intertrochanteric fracture | |
| CN215458556U (en) | Pedicle screw | |
| CN209932946U (en) | Locking bone fracture plate and system for osteotomy correction | |
| CN212521978U (en) | Adjustable self-stress stimulation intramedullary nail | |
| CN108210054A (en) | A kind of memorial alloy femur fracture plate | |
| CN112773569A (en) | Intramedullary pressurization fixing device for reconstruction of adjacent joint bone defect prosthesis | |
| CN106725788A (en) | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine | |
| CN209864018U (en) | Bone fracture plate for proximal femoral fracture | |
| CN203017068U (en) | External fixation locking nail plate system used for curing femoral intertrochanteric fracture | |
| CN208659523U (en) | A kind of femur marrow inner fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |