CN207870947U - A kind of Intramedullary nail - Google Patents
A kind of Intramedullary nail Download PDFInfo
- Publication number
- CN207870947U CN207870947U CN201721142464.1U CN201721142464U CN207870947U CN 207870947 U CN207870947 U CN 207870947U CN 201721142464 U CN201721142464 U CN 201721142464U CN 207870947 U CN207870947 U CN 207870947U
- Authority
- CN
- China
- Prior art keywords
- distal end
- location hole
- end location
- nail rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to the technical field of orthopaedics medical instrument, specially a kind of Intramedullary nail；Including the hollow nail rod of cylindrical type, distal end location hole and super distal end location hole are provided in the nail rod, distance is less than distal end location hole at a distance from nail rod end between super distal end location hole and nail rod end, the super distal end location hole has been connected through a screw thread connecting rod, the connecting rod is connected with registration arm, the opening of the super distal end location hole and distal end location hole in nail rod is in the same plane, the angle of the axis of the super distal end location hole and the axis of nail rod is in 45 °, and the opening direction of the super distal end location hole is towards nail rod end；The utility model can reduce doctor and take aim at inaccurate and fixed unstable problem to far-end locking during surgery, reduce operation risk, reduce the pain of patient.
Description
Technical field
The utility model is related to the technical field of orthopaedics medical instrument, specially a kind of Intramedullary nail.
Background technology
Fracture refers to a kind of disease for causing bone parts due to wound or pathology etc. or being broken completely.Fracture is controlled
Treatment follows reset, fixation, functional training this three basic principles.Reset be will after fracture the fracture site that is displaced it is again extensive
Again normally or close to original normal position, the holder to restore bone again acts on.After the reduction of the fracture, if without being fixedly secured, hold
Easily occur to shift again, therefore should be given after the reduction of the fracture corresponding fixed to promote union.
Common fixing means of fracturing is divided into outer fixation and interior fixation.As internal fixation material, operation method are continuously improved
And transformation of the people to fractures method idea, fracture now is intended to surgical menopause treatment.Inside-fixture can be with
It is broadly divided into Medullary fixation device and marrow external fixer, since 19th century, bone plate is gradually used for elongated tubular with intramedullary nail
In the treatment of bone-shaped fracture.
Intramedullary nail is a kind of therapeutic medical orthopedic fixation device tool, includes the nail of rod-shaped composition intramedullary nail agent structure
The head end in nail rod is arranged in bar, and the proximally-located hole being arranged in nail rod and distal end location hole, proximally-located hole, and distally
Distal end closer away from nail rod end in nail rod is then arranged in location hole, in operation simultaneously by proximally-located hole and distal end location hole
Intramedullary nail is fixed and is positioned.
But existing intramedullary nail is for femur, shin bone shaft fracture the case where, since femur, shin bone are bendings, and
And pulp cavity thickness differs, and causes main nail after being implanted into intramedullary nail to deform, deviation occurs for far-end locking hole and registration arm, passes through during surgery
Often there is far-end locking nail cannot fast and to be accurately locked in lock hole by locator.
Utility model content
The purpose of this utility model is to provide a kind of Intramedullary nails, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions：
Including the hollow nail rod of cylindrical type, it is provided with distal end location hole and super distal end location hole in the nail rod, it is fixed to surpass distal end
Distance is less than distal end location hole at a distance from nail rod end between position hole and nail rod end, and the super distal end location hole passes through screw thread
It is connected with connecting rod, the connecting rod is connected with registration arm, the super distal end location hole and distal end location hole opening in nail rod
In the same plane, the angle of the axis of the super distal end location hole and the axis of nail rod is in 45 ° to mouth, the super distal end positioning
The opening direction in hole is towards nail rod end.
Further, the end surface far from super distal end location hole is equipped with relief in the nail rod.
Further, the hollow nail rod internal diameter is 9mm.
Compared with prior art, the utility model has the beneficial effects that：It is positioned using super distal end location hole, to solve
Intra medullary nail far-end locking of having determined follows closely the problem of position inaccurate.Doctor can be reduced in Clinical practice during surgery to remote lock
Surely inaccurate and fixed unstable problem is taken aim at, operation risk is reduced, reduces the pain of patient, separate super distal end is fixed in nail rod
The end surface in position hole is equipped with relief, and the setting of relief can allow fracture patient to palliate the agonizing sufferings after surgery, while nail rod
Internal diameter 9mm, the marrow in bone can be facilitated by nail rod, intramedullary nail is avoided to bring side effect to patient.
Description of the drawings
Fig. 1 is the utility model nail rod cross-sectional view；
Fig. 2 is that the utility model penetrates Kirschner wire usage state diagram in nail rod；
Usage state diagram after Fig. 3 fixes for nail rod in the utility model.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model includes the hollow nail rod of cylindrical type, and distal end location hole 2 is provided in the nail rod 1 and super distal end positions
Hole 3, distance is less than distal end location hole at a distance from nail rod end between super distal end location hole and nail rod end, and the super distal end is fixed
Position hole has been connected through a screw thread connecting rod 6, and the connecting rod is connected with registration arm 7, and the super distal end location hole and distal end position
In the same plane, the angle of the axis of the super distal end location hole and the axis of nail rod is in 45 ° to opening of the hole in nail rod,
The opening direction of the super distal end location hole is towards nail rod end.The end surface far from super distal end location hole is equipped in nail rod
Relief 4.
In the present invention, a super distal end location hole 3 is arranged by the distalmost end in nail rod 1, then passes through connection
Achieve the purpose that 1 distal end of fixed nail rod after registration arm 7, while the angle of the axis and the axis of nail rod 1 of super distal end location hole 3 is in
45 °, and the opening direction of super distal end location hole can reach the work of more preferable firm nail rod distal end in this way towards nail rod end
With.
In actual use, penetrate nail rod 1 in first bone cavity, then nail rod again it is hollow in penetrate Kirschner wire 5, along kirschner
The direction opening drill of needle outlet opens seam cortex, while screwing in connecting rod in super remote location hole, and registration arm is connected in connecting rod
Nail rod distal end is positioned.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of Intramedullary nail, it is characterised in that：Including the hollow nail rod of cylindrical type, distal end location hole is provided in the nail rod
And super distal end location hole, distance is less than distal end location hole at a distance from nail rod end between super distal end location hole and nail rod end,
The super distal end location hole has been connected through a screw thread connecting rod, and the connecting rod is connected with registration arm, the super distal end location hole
And opening of the distal end location hole in nail rod is in the same plane, the axis of the super distal end location hole and the axis of nail rod
Angle is in 45 °, and the opening direction of the super distal end location hole is towards nail rod end.
2. a kind of Intramedullary nail according to claim 1, it is characterised in that：Far from super distal end location hole in the nail rod
End surface be equipped with relief.
3. a kind of Intramedullary nail according to claim 2, it is characterised in that：The hollow nail rod internal diameter is 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142464.1U CN207870947U (en) | 2017-09-07 | 2017-09-07 | A kind of Intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142464.1U CN207870947U (en) | 2017-09-07 | 2017-09-07 | A kind of Intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207870947U true CN207870947U (en) | 2018-09-18 |
Family
ID=63500235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721142464.1U Expired - Fee Related CN207870947U (en) | 2017-09-07 | 2017-09-07 | A kind of Intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207870947U (en) |
-
2017
- 2017-09-07 CN CN201721142464.1U patent/CN207870947U/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: 20180918 Termination date: 20200907 |