CN208541393U - Dissect fixed intramedullary nail - Google Patents
Dissect fixed intramedullary nail Download PDFInfo
- Publication number
- CN208541393U CN208541393U CN201720920763.7U CN201720920763U CN208541393U CN 208541393 U CN208541393 U CN 208541393U CN 201720920763 U CN201720920763 U CN 201720920763U CN 208541393 U CN208541393 U CN 208541393U
- Authority
- CN
- China
- Prior art keywords
- buckle
- intramedullary nail
- rivet nut
- nut
- proximal end
- 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.)
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Abstract
The utility model belongs to the field of medical instrument technology, more particularly to solution plane fixed intramedullary nail, marrow is squeezed into using rivet nut, the fixed mode of insertion screw is punched in bone ends to fix fracture, it is unfavorable for the development of injury sclerotin, dissect fixed intramedullary nail, including intramedullary nail rivet nut, rivet nut is by proximally and distally constituting, the end of proximal end is provided with the first bulge, first bulge upper end is provided with the first nut, the end of distal end is provided with the second bulge, second bulge lower snap realizes tensioning by the second nut, bulge expands under the tension of nut and buckle, to fixed rivet nut, only the wound of very little need to be got in one end of insertion rivet nut, hammer into marrow, largely alleviate the slight illness of injury, reduce the influence developed to injury sclerotin.
Description
Technical field
The utility model belongs to the field of medical instrument technology, more particularly to solution plane fixed intramedullary nail.
Background technique
Intramedullary nail is usually composed of the main nail of intramedullary nail, lag screw and fixing screws.Intramedullary nail can be used for positioning
With the fracture of the long bone of fixed such as femur.With the further investigation of biomethanics, fracture at present to Shaft of human femur, intramedullary nail
Fixation is the preferred option for the treatment of.In the femur of fracture, the main nail of intramedullary nail can be inserted into the pulp cavity of femur and be placed
At the fracture line extension along femur.It is then possible to by fixing screws or other fix devices and be inserted through femur in fracture
On opposite side, it is formed in the hole in the main nail of intramedullary nail, to ensure that the opposite segment for the femur being broken is fixed together.If long bone
Head or neck, such as the head or neck of femur have been broken, and lag screw can be inserted into the transverse holes being formed in intramedullary nail main body
It is interior.The transverse holes be arranged such that lag screw extend through the neck of long bone and to the head of long bone and pass through fracture line, this
So that lag screw can be reduced the fracture of the head or neck of long bone, due to the increase at age, fracture under femoral intertrochanteric, tuberosity
Probability it is increasing.
205924144 U of Chinese utility model patent specification CN discloses a kind of near end of thighbone gamma type intramedullary nail；Including
Intramedullary nail rivet nut, lag screw and fixing screws；The intramedullary nail rivet nut includes front-end and back-end, before the intramedullary nail rivet nut
End is equipped with fixing screw hole；The fixing screw hole is two, and parallel at a distance of setting；The end of intramedullary nail rivet nut front end
In portion's outer rim, it is evenly distributed a plurality of arc grooves of setting；The rear end of the intramedullary nail rivet nut is equipped with lag screw hole；It is described
Angle between the central axes of intramedullary nail rivet nut front end and the central axes of intramedullary nail rivet nut rear end is 175 °；The pulling force spiral shell
Angle between the central axes of nail hole and the central axes of intramedullary nail rivet nut rear end is 51 °.This intramedullary needle still uses rivet nut
Squeeze into marrow, punch the fixed mode of insertion screw in bone ends to realize the purpose of fixed fracture, in fixation procedure
The sclerotin that punching is unfavorable for patient's script on bone develops and more pains of injury is applied to patient.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the utility model provides solution plane fixed intramedullary nail, solves
In the fixed rivet nut of bone punching two ends insertion screw, the problem of patient's sclerotin is developed is influenced.
Its technical solution is to dissect fixed intramedullary nail, including intramedullary nail rivet nut, the rivet nut is by proximally and distally structure
At, which is characterized in that the end of the proximal end is provided with the first bulge, and the end of the distal end is provided with the second bulge,
First bulge is by the strip toughness steel disc group between the first buckle, the second buckle and the first buckle and the second buckle
At first buckle is flexibly connected with rivet nut, and the second buckle is fixedly connected with rivet nut, and the first buckle upper end is provided with first
Nut, correspondingly, the screw thread that proximal end setting is used cooperatively with the first nut, second bulge buckles by third, the
Four buckles and third buckle the strip toughness steel disc composition between the 4th buckle, and the third buckle is fixed with rivet nut to be connected
It connects, the 4th buckle is flexibly connected with rivet nut, and the described 4th snaps through the second nut of the pull rod inside rivet nut and proximal end
It is connected, correspondingly, the screw thread that proximal end setting is used cooperatively with the second nut.
Further, outside the intra medullary nail far-end setting slight curvature and can flexible deformation expansion rod, it is described slightly
Bending and can the expansion rod of flexible deformation be fixed in the intra medullary nail far-end close to the end of proximal end, the slight curvature and
The expansion rod of energy flexible deformation is in end free wxpansion of the intra medullary nail far-end far from proximal end.
Further, the end nail tip far from the intramedullary nail proximal end of the intra medullary nail far-end is set as thick another on one side
Side gradually it is thinning and it is most advanced be acicular blade-like, between the intramedullary nail proximal end and the intra medullary nail far-end be in 5 ° of angles.
The utility model has the technical effect that, is expanded under the tension of nut and buckle using toughness steel disc, thus
Fixed rivet nut only need to get the wound of very little in one end of insertion rivet nut, hammer into marrow, it is not necessary to be inserted into fracture punching two ends
Screw fixes intramedullary nail rivet nut, largely alleviates the slight illness of injury, reduces the influence developed to injury sclerotin.
Detailed description of the invention
Fig. 1 is the main view for dissecting fixed intramedullary nail
Specific embodiment
Below in conjunction with Figure of description, specific embodiment is described in further details.
Embodiment one: being provided by Fig. 1, dissects fixed intramedullary nail, including intramedullary nail rivet nut 10, rivet nut 10 is by 1 He of proximal end
Distally 2 constitute, the end of proximal end 1 is provided with the first bulge 6, the first bulge 6 by first the 6.1, second buckle 6.2 of buckle with
And the first strip toughness steel disc 9 between buckle 6.1 and the second buckle 6.2 forms, the first buckle 6.1 with the activity of rivet nut 10 even
It connects, the second buckle 6.2 is fixedly connected with rivet nut 10, the first 6.1 upper ends of buckle is provided with the first nut 4, correspondingly, proximal end 1
The screw thread that end setting is used cooperatively with the first nut 4, after rivet nut squeezes into marrow, the first nut 4 is screwed down, the first card of compressing
Button 6.1 is moved down with rivet nut, so that the toughness steel disc 9 between the first buckle 6.1 and the second buckle 6.2 deforms, around
Spread 10 proximal end 1 of clamping rivet nut；Distally 2 end is provided with the second bulge 7, and the second bulge is by third buckle the 7.1, the 4th
Strip toughness steel disc 9 between buckle 7.2 and third buckle 7.1 and the 4th buckle 7.2 forms, third buckle 7.1 and rivet nut
10 are fixedly connected, and the 4th buckle 7.2 is flexibly connected with rivet nut 10, and the 4th buckle 7.2 passes through pull rod 8 and proximal end 1 inside rivet nut
Second nut 5 of end is connected, correspondingly, the screw thread that the setting of 1 end of proximal end is used cooperatively with the second nut 5, the second nut 5
Being threaded through pull rod 8 upwards drives the 4th buckle 7.2 to move up, so that tough between third buckle 7.1 and the 4th buckle 7.2
Property steel disc 9 deform, around spread clamping rivet nut 10 distal end 2.
Embodiment two: being arranged slight curvature on the basis of example 1, outside the intra medullary nail far-end 2 and can elasticity change
The expansion rod of shape, the slight curvature and can flexible deformation expansion rod the intra medullary nail far-end 2 close to proximal end 1 end into
Row is fixed, and the expansion rod of the slight curvature and energy flexible deformation is freely swollen in the end of the intra medullary nail far-end 2 far from proximal end 1
Swollen, it is gradually thinning that the end nail tip 3 far from the intramedullary nail proximal end 1 of the intra medullary nail far-end 2 is set as thick another side on one side
And most advanced is acicular blade-like, is in 5 ° of angles between the intramedullary nail proximal end 1 and the intra medullary nail far-end 2, both meets human body
Skeletal structure is conducive to rivet nut again and squeezes into marrow.
The utility model has the technical effect that, is expanded under the tension of nut and buckle using toughness steel disc, thus
Fixed rivet nut only need to get the wound of very little in one end of insertion rivet nut, hammer into marrow, it is not necessary to be inserted into fracture punching two ends
Screw fixes intramedullary nail rivet nut, largely alleviates the slight illness of injury, reduces the influence developed to injury sclerotin.
Above by specific embodiment and embodiment, invention is explained in detail, but these are not composition pair
Limitation of the invention.Without departing from the principles of the present invention, those skilled in the art can also make many deformations and change
Into these also should be regarded as protection scope of the present invention.
Claims (3)
1. dissecting fixed intramedullary nail, including intramedullary nail rivet nut (10), the rivet nut (10) is made of proximal end (1) and distal end (2),
It is characterized in that, the end of the proximal end (1) is provided with the first bulge (6), it is swollen that the end of the distal end (2) is provided with second
Swollen portion (7), first bulge (6) is by the first buckle (6.1), the second buckle (6.2) and the first buckle (6.1) and second
Strip toughness steel disc (9) composition between (6.2) is buckled, first buckle (6.1) is flexibly connected with rivet nut (10), the second card
Button (6.2) is fixedly connected with rivet nut (10), first buckle (6.1) upper end is provided with the first nut (4), correspondingly, proximal end (1)
The screw thread that end setting is used cooperatively with the first nut (4), second bulge is by third buckle (7.1), the 4th buckle
(7.2) strip toughness steel disc (9) composition and between third buckle (7.1) and the 4th buckle (7.2), the third buckle
(7.1) it is fixedly connected with rivet nut (10), the 4th buckle (7.2) is flexibly connected with rivet nut (10), and the 4th buckle (7.2) passes through
Pull rod (8) inside rivet nut is connected with second nut (5) of proximal end (1) end, correspondingly, proximal end (1) end setting and the
The screw thread that two nuts (5) are used cooperatively.
2. dissection fixed intramedullary nail according to claim 1, which is characterized in that set outside the intra medullary nail far-end (2)
Set slight curvature and can flexible deformation expansion rod, the slight curvature and can flexible deformation expansion rod it is remote in the intramedullary nail
End (2) is fixed close to the end of proximal end (1), and the expansion rod of the slight curvature and energy flexible deformation is remote in the intramedullary nail
Hold (2) far from the end free wxpansion of proximal end (1).
3. dissection fixed intramedullary nail according to claim 1, which is characterized in that the intra medullary nail far-end (2) it is separate
It is gradually thinning and most advanced for acicular blade that the end nail tip (3) of the intramedullary nail proximal end (1) is set as thick another side on one side
Shape is in 5 ° of angles between the intramedullary nail proximal end (1) and the intra medullary nail far-end (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920763.7U CN208541393U (en) | 2017-07-27 | 2017-07-27 | Dissect fixed intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920763.7U CN208541393U (en) | 2017-07-27 | 2017-07-27 | Dissect fixed intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208541393U true CN208541393U (en) | 2019-02-26 |
Family
ID=65414487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720920763.7U Expired - Fee Related CN208541393U (en) | 2017-07-27 | 2017-07-27 | Dissect fixed intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208541393U (en) |
-
2017
- 2017-07-27 CN CN201720920763.7U patent/CN208541393U/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: 20190226 Termination date: 20190727 |