CN208926564U - Femoral interlocking nail structural system - Google Patents
Femoral interlocking nail structural system Download PDFInfo
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- CN208926564U CN208926564U CN201820780840.8U CN201820780840U CN208926564U CN 208926564 U CN208926564 U CN 208926564U CN 201820780840 U CN201820780840 U CN 201820780840U CN 208926564 U CN208926564 U CN 208926564U
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Abstract
The utility model relates to a kind of femoral interlocking nail structural systems, with the main nail of intramedullary nail, the nearly rear end of the main nail of intramedullary nail sets that there are two the first hole and two the second holes, the main nail front end of intramedullary nail is set there are two third hole and two the 4th holes, proximal end interlocking bone screws are inserted in two the first holes, anti- rotation screw is inserted in two the second holes, the first distal cortex bone screws are inserted in two third holes, the second distal cortex bone screws are inserted in two the 4th holes, proximal end interlocking bone screws and anti-rotation screw are arranged in parallel, angle is formed between first distal cortex bone screws and the second distal cortex bone screws；Back segment portion axis and proximal end interlocking bone screws axis angle are 54 °~56 °；Leading portion portion axis is vertical with the first distal cortex bone screws axis；First distal cortex bone screws axis and the second distal cortex bone screws axis angle are 14 °~16 °.The structure of femoral interlocking nail is simple, easy to operate, can effectively prevent operation and neutralizes the rotation of postop fracture end and shift separation.
Description
Technical field
The utility model relates to the technical field of orthopedic fixation device tool, especially a kind of femoral interlocking nail structural system.
Background technique
With the increase at age, the probability for occurring fracturing under femoral intertrochanteric, tuberosity is increasing.In recent years, clinically
It is often used the gamma type intramedullary nail treatment fracture.Influence of the gamma type intramedullary nail to fracture site is smaller, and using solid in marrow
Fixed, fixed axis is close to the axle center of femur, and the tensile stress and compression of receiving are minimum, and fracture site stress shielding is minimum, can be real
It now pressurizes, there is lot of advantages.However, because of design defect, operation neutralizes operation in most intramedullary nails existing at present
After can frequently result in fracture end rotation and shift separation, the problems such as broken ends of fractured bone is unstable, and intramedullary nail in femoral head by cutting out, usually need
It to perform the operation again and solve problem above, increase pain to patient, while wasting medical resource.
Summary of the invention
Technical problem to be solved by the utility model is: providing a kind of stock to overcome the deficiencies in the prior art
Intramedullary pin structural system, structure is simple, easy to operate, can effectively prevent operation and neutralizes the rotation of postop fracture end and separation shifting
Position.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of femoral interlocking nail structural system, tool
There is the main nail of the intramedullary nail being placed in femoral bone cavitas medullaris, the main nail of the intramedullary nail is hollow structure, and the main nail of intramedullary nail includes back segment portion
With leading portion portion, and angle is formed between the axis in the back segment portion and the axis in the leading portion portion, the main nail of intramedullary nail
Sealing cap is installed, the circumferential direction of the front end of the main nail of intramedullary nail has been uniformly arranged several arc grooves, the main nail of intramedullary nail at open rearward end
Nearly rear end is provided with two pairs of the first holes and two pairs of the second holes, and the front end of the main nail of intramedullary nail is provided with pairs of
Two third holes and two pairs of the 4th holes are interspersed with proximal end interlocking bone screws, institute in two pairs of first holes
It is interspersed with anti-rotation screw in two pairs of the second holes stated, is interspersed with the first distal end skin in two pairs of third holes
Matter bone screws are interspersed with the second distal cortex bone screws, the proximal end interlocking murices in described two pairs of the 4th holes
Nail and anti-rotation screw are arranged in parallel, and are formed with folder between the first distal cortex bone screws and the second distal cortex bone screws
Angle；The angle of the axis of the axis in the back segment portion of the main nail of the intramedullary nail and the proximal end interlocking bone screws is 54 °~
56°；The axis perpendicular of the axis in the leading portion portion of the main nail of the intramedullary nail and the first distal cortex bone screws；It is described
The axis of the first distal cortex bone screws and the angle of axis of the second distal cortex bone screws be 14 °~16 °.
Further specifically, in above-mentioned technical proposal, after first hole and the second hole are located at the main nail of intramedullary nail
In section portion, the third hole and the 4th hole are located in the leading portion portion of the main nail of intramedullary nail.
Further specifically, in above-mentioned technical proposal, the aperture in second hole is greater than the hole in first hole
Diameter, the aperture in the first hole are greater than the aperture in the third hole, and the aperture in the 4th hole is identical as the aperture in third hole.
Further specifically, first hole and second hole are pyriform hole, institute in above-mentioned technical proposal
The third hole stated is round hole, and the 4th hole is kidney slot.
Further specifically, in above-mentioned technical proposal, the anti-rotation screw includes the anti-rotation screw nail being sequentially connected
Head, anti-rotation screw shank and anti-rotation screw follow closely tail, and the anti-rotation screw ailhead is spiral cutter head, and the anti-rotation screw follows closely tail
Tail is followed closely for interior hexagonal, is provided with arc groove on the anti-rotation screw shank.
Further specifically, the proximal end interlocking bone screws include the proximal end being sequentially connected in above-mentioned technical proposal
Interlocking bone screws ailhead, proximal end interlocking bone screws nail rod and proximal end interlocking bone screws follow closely tail, the proximal end interlocking bone screws nail
There is screw thread, the proximal end interlocking bone screws nail tail is that interior hexagonal follows closely tail on head.
Further specifically, the first distal cortex bone screws include being sequentially connected in above-mentioned technical proposal
First distal cortex bone screws ailhead, the first distal cortex bone screws nail rod and the first distal cortex bone screws follow closely tail, described
There is screw thread, the first distal cortex bone screws nail tail is hexagonal nail in bulb in first distal cortex bone screws nail rod
Tail；The second distal cortex bone screws include the second distal cortex bone screws ailhead being sequentially connected, the second distal cortex
Bone screws nail rod and the second distal cortex bone screws follow closely tail, have screw thread, institute in the second distal cortex bone screws nail rod
The the second distal cortex bone screws nail tail stated is that hexagonal follows closely tail in bulb.
The beneficial effects of the utility model are: femoral interlocking nail structural system provided by the utility model, fundamentally solves
The problem of certainly rotation, separation of fracture end are unstable, and intramedullary nail in femoral head by cutting out, has structure simple, easy to operate, energy
The advantages of effectivelying prevent operation to neutralize the displacement of postop fracture end, nonunion；Meanwhile the structure letter of the femoral interlocking nail
It is single, meet human dissection feature, be consistent with the form of bone, therapeutic effect can be promoted.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments as described in this application, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model femoral interlocking nail；
Fig. 2 is the use state diagram of femoral interlocking nail；
Fig. 3 is the structural schematic diagram of the main nail of intramedullary nail；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the right view of Fig. 3；
Fig. 6 is the structural schematic diagram of proximal end interlocking bone screws；
Fig. 7 is the structural schematic diagram of anti-rotation screw；
Fig. 8 is the structural schematic diagram of the first distal cortex bone screws；
Fig. 9 is the structural schematic diagram of the second distal cortex bone screws.
Label in figure are as follows: A, femur；1, the main nail of intramedullary nail；1-1, arc groove；1-2, the first hole；1-3, the second hole；1-
4, third hole；1-5, the 4th hole；2, sealing cap；3, proximal end interlocking bone screws；3-1, proximal end interlocking bone screws ailhead；3-2, proximal end are handed over
Clavicle screw shank；3-3, proximal end interlocking bone screws follow closely tail；4, anti-rotation screw；4-1, anti-rotation screw ailhead；4-2, anti-rotation screw
Nail rod；4-2-1, arc groove；4-3, anti-rotation screw follow closely tail；5, the first distal cortex bone screws；5-1, the first distal cortex bone
Screw ailhead；5-2, the first distal cortex bone screws nail rod；5-3, the first distal cortex bone screws tail；6, the second distal cortex bone
Screw；6-1, the second distal cortex bone screws ailhead；6-2, the second distal cortex bone screws nail rod；6-3, the second distal cortex bone
Screw tail.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
See Fig. 1~9, femoral interlocking nail structural system has the main nail 1 of the intramedullary nail being placed in femur A pulp cavity, intramedullary nail master
The shape of nail 1 is designed as meeting the shape of femur A pulp cavity anatomical angle, and the main nail 1 of intramedullary nail is hollow structure, the main nail 1 of intramedullary nail
Including back segment portion and leading portion portion, and angle is formed between the axis in back segment portion and the axis in leading portion portion, after the main nail 1 of intramedullary nail
Sealing cap 2 is installed, the circumferential direction of the front end of the main nail 1 of intramedullary nail has been uniformly arranged several arc groove 1-1, the main nail of intramedullary nail at end opening
1 nearly rear end is provided with two pairs of the first hole 1-2 and two pairs of the second hole 1-3, and the front end of the main nail 1 of intramedullary nail is set
Two pairs of third hole 1-4 and two pairs of the 4th hole 1-5 are equipped with, are interspersed with proximal end in two pairs of the first hole 1-2
Interlocking bone screws 3 are interspersed with anti-rotation screw 4 in two pairs of the second hole 1-3, are interspersed in two third hole 1-4 in pairs
First distal cortex bone screws 5 are interspersed with the second distal cortex bone screws 6, proximal end interlocking bone in two pairs of the 4th hole 1-5
Screw 3 and anti-rotation screw 4 are arranged in parallel, and are formed with folder between the first distal cortex bone screws 5 and the second distal cortex bone screws 6
Angle；The angle of the axis of the axis and proximal end interlocking bone screws 3 in the back segment portion of the main nail 1 of intramedullary nail is 54 °~56 °；Intramedullary nail master
The axis in the leading portion portion of nail 1 and the axis perpendicular of the first distal cortex bone screws 5；The axis of first distal cortex bone screws 5
Angle with the axis of the second distal cortex bone screws 6 is 14 °~16 °.Wherein, the first hole 1-2 and the second hole 1-3 are located in marrow
In the back segment portion for following closely main nail 1, third hole 1-4 and the 4th hole 1-5 are located in the leading portion portion of the main nail 1 of intramedullary nail.The hole of second hole 1-3
Diameter is greater than the aperture of the first hole 1-2, and the aperture of the first hole 1-2 is greater than the aperture of third hole 1-4, the aperture of the 4th hole 1-5 and the
The aperture of three hole 1-4 is identical.First hole 1-2 and the second hole 1-3 is pyriform hole, and third hole 1-4 is round hole, the 4th hole 1-5
For kidney slot.Anti- rotation screw 4 includes anti-rotation screw ailhead 4-1, the anti-rotation screw shank 4-2 being sequentially connected and anti-rotation screw nail tail
4-3, anti-rotation screw ailhead 4-1 are spiral cutter head, and anti-rotation screw nail tail 4-3 is that interior hexagonal follows closely tail, are set on anti-rotation screw shank 4-2
It is equipped with arc groove 4-2-1.Proximal end interlocking bone screws 3 include proximal end interlocking bone screws ailhead 3-1, the proximal end interlocking being sequentially connected
Bone screws nail rod 3-2 and proximal end interlocking bone screws follow closely tail 3-3, have screw thread, proximal end interlocking on the interlocking bone screws ailhead 3-1 of proximal end
It is that interior hexagonal follows closely tail that bone screws, which follow closely tail 3-3,.First distal cortex bone screws 5 include the first distal cortex bone screws being sequentially connected
Ailhead 5-1, the first distal cortex bone screws nail rod 5-2 and the first distal cortex bone screws follow closely tail 5-3, the first distal cortex murices
Following closely has screw thread on nail rod 5-2, it is that hexagonal follows closely tail in bulb that the first distal cortex bone screws, which follow closely tail 5-3,；Second distal cortex bone
Screw 6 includes the second distal cortex bone screws ailhead 6-1, the second distal cortex bone screws nail rod 6-2 and second being sequentially connected
Distal cortex bone screws follow closely tail 6-3, have screw thread, the second distal cortex bone screws on the second distal cortex bone screws nail rod 6-2
Following closely tail 6-3 is that hexagonal follows closely tail in bulb.
Femoral interlocking nail structural system provided by the utility model, rotation, the separation for fundamentally solving fracture end are unstable
It is fixed, the problem of intramedullary nail in femoral head by cutting out, have structure simple, it is easy to operate, it can effectively prevent after operation neutralizes operation
The advantages of fracture end displacement, nonunion；Meanwhile the structure of the femoral interlocking nail is simple, meets human dissection feature, with bone
The form of bone is consistent, and can promote therapeutic effect.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of femoral interlocking nail structural system, it is characterised in that: have the main nail (1) of intramedullary nail being placed in femoral bone cavitas medullaris, institute
The main nail (1) of the intramedullary nail stated is hollow structure, and the main nail (1) of intramedullary nail includes back segment portion and leading portion portion, and the back segment portion
It is formed with angle between axis and the axis in the leading portion portion, sealing cap is installed at the open rearward end of the main nail (1) of intramedullary nail
(2), the circumferential direction of the front end of the main nail (1) of intramedullary nail has been uniformly arranged several arc grooves (1-1), the nearly rear end of the main nail (1) of intramedullary nail
It is provided with two pairs of the first holes (1-2) and two pairs of the second holes (1-3), the front end setting of the main nail (1) of intramedullary nail
There are a pairs of two third holes (1-4) and two pairs of the 4th holes (1-5), in two pairs of first holes (1-2)
Proximal end interlocking bone screws (3) are interspersed with, are interspersed with anti-rotation screw (4) in two pairs of second holes (1-3), it is described
The first distal cortex bone screws (5), two pairs of the 4th hole (1- are interspersed in two pairs of third holes (1-4)
5) the second distal cortex bone screws (6) are interspersed in, the proximal end interlocking bone screws (3) and anti-rotation screw (4) are arranged in parallel,
Angle is formed between the first distal cortex bone screws (5) and the second distal cortex bone screws (6)；The intramedullary nail
The angle of the axis of the axis and proximal end interlocking bone screws (3) in the back segment portion of main nail (1) is 54 °~56 °；The marrow
The axis in the leading portion portion of the interior main nail (1) of nail and the axis perpendicular of the first distal cortex bone screws (5)；Described first
The angle of the axis of distal cortex bone screws (5) and the axis of the second distal cortex bone screws (6) is 14 °~16 °.
2. femoral interlocking nail structural system according to claim 1, it is characterised in that: first hole (1-2) and
Two holes (1-3) are located in the back segment portion of the main nail (1) of intramedullary nail, and the third hole (1-4) and the 4th hole (1-5) are located at intramedullary nail
In the leading portion portion of main nail (1).
3. femoral interlocking nail structural system according to claim 1, it is characterised in that: the hole in second hole (1-3)
Diameter is greater than the aperture in first hole (1-2), and the aperture of the first hole (1-2) is greater than the aperture in the third hole (1-4), institute
The aperture in the 4th hole (1-5) stated is identical as the aperture of third hole (1-4).
4. femoral interlocking nail structural system according to claim 1, it is characterised in that: first hole (1-2) and institute
The second hole (1-3) stated is pyriform hole, and the third hole (1-4) is round hole, and the 4th hole (1-5) is kidney-shaped
Hole.
5. femoral interlocking nail structural system according to claim 1, it is characterised in that: the anti-rotation screw (4) includes
Anti- rotation screw ailhead (4-1), anti-rotation screw shank (4-2) and anti-rotation screw nail tail (4-3) being sequentially connected, the anti-rotation spiral shell
Following closely ailhead (4-1) is spiral cutter head, and anti-rotation screw nail tail (4-3) is that interior hexagonal follows closely tail, the anti-rotation screw shank
Arc groove (4-2-1) is provided on (4-2).
6. femoral interlocking nail structural system according to claim 1, it is characterised in that: the proximal end interlocking bone screws
It (3) include the proximal end interlocking bone screws ailhead (3-1) being sequentially connected, proximal end interlocking bone screws nail rod (3-2) and proximal end interlocking bone
Screw follows closely tail (3-3), has screw thread, the proximal end interlocking bone screws nail on the proximal end interlocking bone screws ailhead (3-1)
Tail (3-3) is that interior hexagonal follows closely tail.
7. femoral interlocking nail structural system according to claim 1, it is characterised in that: the first distal cortex murices
Nail (5) include the first distal cortex bone screws ailhead (5-1) being sequentially connected, the first distal cortex bone screws nail rod (5-2) and
First distal cortex bone screws follow closely tail (5-3), have screw thread in the first distal cortex bone screws nail rod (5-2), described
The first distal cortex bone screws nail tail (5-3) be bulb in hexagonal follow closely tail；The second distal cortex bone screws (6) include
The second distal cortex bone screws ailhead (6-1), the second distal cortex bone screws nail rod (6-2) and the second distal end skin being sequentially connected
Matter bone screws follow closely tail (6-3), have screw thread, second distal end in the second distal cortex bone screws nail rod (6-2)
It is that hexagonal follows closely tail in bulb that os integumentale screw, which follows closely tail (6-3),.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780840.8U CN208926564U (en) | 2018-05-23 | 2018-05-23 | Femoral interlocking nail structural system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820780840.8U CN208926564U (en) | 2018-05-23 | 2018-05-23 | Femoral interlocking nail structural system |
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| Publication Number | Publication Date |
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| CN208926564U true CN208926564U (en) | 2019-06-04 |
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ID=66714648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820780840.8U Active CN208926564U (en) | 2018-05-23 | 2018-05-23 | Femoral interlocking nail structural system |
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| CN (1) | CN208926564U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110604611A (en) * | 2019-09-16 | 2019-12-24 | 上海伯塔医疗器械有限公司 | Humerus intramedullary nail |
| CN111374744A (en) * | 2020-04-16 | 2020-07-07 | 赵滨 | Intramedullary cavity inner side supporting structure suitable for strengthening proximal femoral fracture internal fixation |
| CN113243982A (en) * | 2021-06-23 | 2021-08-13 | 苏州吉美瑞医疗器械股份有限公司 | Fixed angle positioning type locking screw |
-
2018
- 2018-05-23 CN CN201820780840.8U patent/CN208926564U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110604611A (en) * | 2019-09-16 | 2019-12-24 | 上海伯塔医疗器械有限公司 | Humerus intramedullary nail |
| CN111374744A (en) * | 2020-04-16 | 2020-07-07 | 赵滨 | Intramedullary cavity inner side supporting structure suitable for strengthening proximal femoral fracture internal fixation |
| CN113243982A (en) * | 2021-06-23 | 2021-08-13 | 苏州吉美瑞医疗器械股份有限公司 | Fixed angle positioning type locking screw |
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