CN211883989U - Proximal femur intramedullary and extramedullary combined fixing structure - Google Patents
Proximal femur intramedullary and extramedullary combined fixing structure Download PDFInfo
- Publication number
- CN211883989U CN211883989U CN201922373007.9U CN201922373007U CN211883989U CN 211883989 U CN211883989 U CN 211883989U CN 201922373007 U CN201922373007 U CN 201922373007U CN 211883989 U CN211883989 U CN 211883989U
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- China
- Prior art keywords
- intramedullary
- end plate
- support
- locking cap
- screw
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- 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.)
- Expired - Fee Related
Links
- 210000000689 upper leg Anatomy 0.000 title claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000013011 mating Effects 0.000 abstract description 4
- 210000001694 thigh bone Anatomy 0.000 abstract description 3
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 208000008924 Femoral Fractures Diseases 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002436 femur neck Anatomy 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- UZUFPBIDKMEQEQ-UHFFFAOYSA-N perfluorononanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F UZUFPBIDKMEQEQ-UHFFFAOYSA-N 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model provides a thighbone near-end marrow inside and outside is jointly fixed knot and is constructed, including intramedullary arch support and outside locking nail board, outside locking nail board comprises upper end plate, lower end plate, both sides short end plate constitution cross body structure, the upper end plate inwards becomes crooked, the unanimous incurvation of middle both sides short end plate and upper end plate direction, intramedullary arch support both ends are equipped with the screw thread, intramedullary arch support both ends pass and support locking cap mating holes A, support locking cap mating holes B and be connected with outside locking nail board through supporting locking cap screw-thread fit, outside locking nail board is fixed to reset the back, intramedullary arch support is connected outside locking nail board, cooperate the fix with screw again, make the internal fixation more reliable, the plane of loosing under the direct vision resets, avoid the internal fixation inefficacy. The structure forms a stable connecting and supporting structure combined with the inside and the outside of the marrow, so that the fracture part is fixed, the force transmission is changed, and the failure of broken nail and broken plate, namely internal fixation, caused by stress concentration is avoided.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to proximal femur intramedullary and extramedullary joint fixed knot construct.
Background
Proximal femoral fractures are common and frequent fractures of middle-aged and old people, the existing internal fixation devices have various PFNA DHS.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model aims at providing a thighbone near-end intramedullary and extramedullary fixed knot constructs that unites has compensatied the vacancy in the current structure, and this structure is the integration of intramedullary and extramedullary fixed knot structure as an organic whole, is applicable to various types of thighbone near-end fracture, has reduced the operation degree of difficulty promptly, has intramedullary, extramedullary fixed advantage again simultaneously, reaches the requirement of firm fixed, and specially adapted is complicated smashes, and inside and outside lateral wall all has cracked fracture.
In order to realize the purpose, the utility model discloses a technical scheme is:
a proximal femur intramedullary and extramedullary combined fixing structure comprises an intramedullary arch support and an outer locking nail plate, wherein the outer locking nail plate is of a cross-shaped integrated structure consisting of an upper end plate, a lower end plate and short end plates at two sides, the upper end plate is bent inwards, the short end plates at two sides in the middle are bent inwards in the same direction as the upper end plate, the top end of the upper end plate is provided with a support locking cap matching hole A, seven screw holes A are arranged in a circle of the support locking cap matching hole A, and three screw holes B are arranged in a triangular mode below the screw holes A; one side of the short end plates at two sides is provided with six screw holes C in a T shape, and the other side is provided with a screw hole D; the lower end plate is provided with five screw holes E in a zigzag shape, and another supporting locking cap matching hole B is arranged between the two screw holes E; threads are arranged at two ends of the intramedullary arch support, and two ends of the intramedullary arch support penetrate through the support locking cap matching hole A and the support locking cap matching hole B to be connected with the outer side locking nail plate through support locking cap thread matching.
The diameter of the screw hole A is smaller than that of the screw hole B; screw hole A, screw hole C, screw hole D, screw hole E are equal in diameter.
The supporting locking cap is an internal thread hexagon nut.
The intramedullary arch support can be in various radian specifications.
The utility model has the advantages that:
the structure forms a stable connecting and supporting structure combined with the inside and the outside of the marrow, so that the fracture part is fixed, the force transmission is changed, and the failure of broken nail and broken plate, namely internal fixation, caused by stress concentration is avoided.
Compared with the prior art, the internal fixator overcomes the defects of the prior internal fixator after operation taboo, is suitable for various types of proximal femoral fractures, has simple operation, is different from mastering, has low requirement on technical equipment, can be used for early getting out of bed for postoperative patients, and reduces the complications of lying in bed.
The intramedullary arch support is simply inserted and locked in the top hole of the nail plate.
The arched intramedullary support compensates the supporting force of the fracture of the inner side wall, passes through the reserved gap of the nail plate locking nail and does not interfere with each other.
The nail holes at the edge of the outside locking nail plate can be used for strengthening the neck of the femur and fixing broken bone blocks, so that the effect of deplanation and restoration is achieved.
The reinforcing design under the rotor is that the criminal side wall is released to prevent stress concentration and fracture, and the bone blocks of the front wall and the rear wall can be conveniently fixed in multiple angles.
The multiple holes at the upper and lower top ends of the outer locking nail plate can be used for fixing the tuberosity of the greater tuberosity.
The outer locking nail plate can be selected in various specifications, and the intramedullary arch support can be selected in various radian specifications.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
fig. 2 is a front schematic view of the outer locking nail plate of the present invention.
Fig. 3 is a schematic view of the intramedullary arch support structure of the present invention.
Fig. 4 is a schematic structural view of the support locking cap of the present invention.
Wherein, 1 is an intramedullary arch support; 2 is an outer locking nail plate; 3 is an upper end plate; 4 is a lower end plate; 5 is a short end plate at two sides; 6 is a matching hole A of the support locking cap; 7 is a screw hole A; 8 is a screw hole B; 9 is a screw hole C; 10 is a screw hole D; 11 is a screw hole E; 12 is a supporting locking cap matching hole B; 13 is a supporting locking cap; 14 are threads.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, a proximal intramedullary and extramedullary combined fixing structure for a femur comprises an intramedullary arch support 1 and an outer locking nail plate 2, wherein the outer locking nail plate 2 is a cross-shaped integrated structure consisting of an upper end plate 3, a lower end plate 4 and two short end plates 5, the upper end plate 3 is bent inwards, the short end plates 5 at two sides of the middle part are bent inwards in the same direction as the upper end plate 3, the top end of the upper end plate 3 is provided with a support locking cap matching hole a6, seven screw holes a7 are arranged in a circle in the support locking cap matching hole a6, and three screw holes B8 are arranged in a triangular shape below the screw holes a 7; one side of the short end plates 5 at two sides is provided with six screw holes C9 in a T shape, and the other side is provided with a screw hole D10; the lower end plate 4 is provided with five screw holes E11 in a zigzag shape, and another supporting locking cap matching hole B12 is arranged between the two screw holes E11; the two ends of the intramedullary arch support 1 are provided with screw threads 14, and the two ends of the intramedullary arch support 1 pass through the support locking cap matching hole A6 and the support locking cap matching hole B12 and are connected with the outer locking nail plate 2 through the screw thread matching of the support locking cap 13.
The diameter of the screw hole A7 is smaller than that of the screw hole B8; screw hole a7, screw hole C9, screw hole D10, and screw hole E11 are equal in diameter.
As shown in fig. 4, the support locking cap 13 is an internally threaded hexagonal nut.
As shown in FIG. 3, the intramedullary arch support 1 can have a variety of arc specifications.
The utility model discloses a theory of operation is:
the proximal femur strenghthened type intramedullary and extramedullary combines the locking roof to fix, there is cracked fracture internal fixation mainly in the complicated inside and outside lateral wall of proximal femur, outside locking nail board 2 is fixed to reset the back, intramedullary arch is supported 1 both ends and is penetrated support locking cap mating holes A6, support locking cap mating holes B12 on the top of outside locking nail board 2, after the suitable position, fix 1 both ends of intramedullary arch with supporting locking cap 13, cooperate the fix with screw again, make the internal fixation more reliable, the plane of relieving is reset under the direct vision, avoid the internal fixation inefficacy.
As shown in fig. 1 and 2, the appearance of the plate is completely attached to the proximal end of human femur in the planning state, the hole support locking cap matching hole a6, the support locking cap matching hole B12 is an arch support, the support locking cap matching hole B12 is placed and locked, the force transmission is changed, the force transmission is deviated to the center transmission, the screw hole B8 and the two holes around the screw hole B are three hollow locking screws placed in the femur, so that the femoral head and the locking plate are integrated, the screw hole a7, the screw hole C9, the screw hole D10, the screw hole E11 and other holes with the same size are firmly fixed by using the locking screws, the plate and the femur are combined into a whole in a firm, multi-angle and multi-plane mode, the design of multi-hole, multi-plane and multi-angle well solves the uncertainty of fracture.
Claims (4)
1. A proximal femur intramedullary and extramedullary combined fixing structure comprises an intramedullary arch support (1) and an outer locking nail plate (2), and is characterized in that the outer locking nail plate (2) is of a cross-shaped integrated structure consisting of an upper end plate (3), a lower end plate (4) and two side short end plates (5), the upper end plate (3) is bent inwards, the middle two side short end plates (5) are bent inwards in the same direction as the upper end plate (3), the top end of the upper end plate (3) is provided with a support locking cap matching hole A (6), seven screw holes A (7) are arranged in a circle of the support locking cap matching hole A (6), and three screw holes B (8) are arranged in a triangular mode below the screw holes A (7); one side of the short end plates (5) at two sides is provided with six screw holes C (9) in a T shape, and the other side is provided with a screw hole D (10); the lower end plate (4) is provided with five screw holes E (11) in a zigzag shape, and another supporting locking cap matching hole B (12) is arranged between the two screw holes E (11); threads (14) are arranged at two ends of the intramedullary arched support (1), and two ends of the intramedullary arched support (1) penetrate through the support locking cap matching hole A (6) and the support locking cap matching hole B (12) to be connected with the outer side locking nail plate (2) through the support locking cap (13) in a threaded matching mode.
2. The proximal intramedullary/intramedullary combination fixation structure of claim 1, wherein the screw hole a (7) has a diameter smaller than the screw hole B (8); screw hole A (7), screw hole C (9), screw hole D (10), screw hole E (11) are the same diameter.
3. The intramedullary and extramedullary united fixation structure of the proximal femur of claim 1, wherein the intramedullary arch support (1) can be used in a variety of arc sizes.
4. The intramedullary and intramedullary combination fixation structure of a proximal femur according to claim 1, wherein the support locking cap (13) is an internally threaded hexagonal nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373007.9U CN211883989U (en) | 2019-12-26 | 2019-12-26 | Proximal femur intramedullary and extramedullary combined fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922373007.9U CN211883989U (en) | 2019-12-26 | 2019-12-26 | Proximal femur intramedullary and extramedullary combined fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211883989U true CN211883989U (en) | 2020-11-10 |
Family
ID=73293770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922373007.9U Expired - Fee Related CN211883989U (en) | 2019-12-26 | 2019-12-26 | Proximal femur intramedullary and extramedullary combined fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211883989U (en) |
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2019
- 2019-12-26 CN CN201922373007.9U patent/CN211883989U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |