CN2522040Y - Absorptive inter-locked intramedullary nail - Google Patents
Absorptive inter-locked intramedullary nail Download PDFInfo
- Publication number
- CN2522040Y CN2522040Y CN 01271544 CN01271544U CN2522040Y CN 2522040 Y CN2522040 Y CN 2522040Y CN 01271544 CN01271544 CN 01271544 CN 01271544 U CN01271544 U CN 01271544U CN 2522040 Y CN2522040 Y CN 2522040Y
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- nail
- intramedullary nail
- intramedullary
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Abstract
The utility model relates to an absorbed locking intramedullary nail in orthopedic trauma and orthopaedic surgery, consisting of an intramedullary nail and a locking nail; the shape of the intramedullary nail can be divided into multiple prism type, cylindrical type, oval columnar type and club-shaped columnar type or mixed type; the diameter of the intramedullary nail ranges within 1 to 60mm and the length within 5 to 500mm; the trunk can be provided with a drilling hole in different directions; the diameter of the drilling hole is smaller than the diameter of the intramedullary nail; and the inside of the drilling hole can be provided with the locking nail of different diameter. The product with sufficient anti-pressure, anti-bending and anti-stretching intensity can be applied in fracture or orthopaedic surgery for accelerating fracture healing.
Description
Technical field:
This utility model relates to the absorbed interlocking intramedullary nail in a kind of orthopedic injury and the orthomorphia.
Background technology:
In current orthopedic injury and orthomorphia, using the medullary cavity internal fixation is increasing mode, because the marrow internal fixation is fixed for axis, is the most stable fixed form on the biomechanics.The ruined degree of transporting outer periosteum that union of fracture plays a major role in the art and blood thereof can reduce minimum, therefore, is one of the fastest modus operandi of union of fracture.The marrow internal fixation apparatus that tradition is used is metal material, as rustless steel, titanium alloy etc.The intramedullary pin that these metal materials are made can be nail with lock (as rustless steel interlocking intramedullary nail, titanium alloy interlocking intramedullary nail etc.) or (as v type needle, percussopunctator etc.) not with lock.But there is following shortcoming in the intramedullary pin that metal material is made (pin):
1, the fixing fracture of intramedullary nail with nail is not imprecise, often needs external fixation or traction apparatus, helps fixingly, influences the patient, especially suffers from the reconditioning of limb, fails significantly bed rest time after the desmopyknosis.
2, intramedullary nail with lock and not 2～7 operative incisions of intramedullary nail with nail needs, and need do operation for the second time in union of fracture, metal intramedullary nail (pin) is taken out, increase misery and expenses of surgical treatment that patient performs the operation for the second time.
3, the external sight of intramedullary nail with lock needs, and the locking nail hole of its far-end usually aims at difficulty, incurs loss through delay a large amount of operating times, increases amount of bleeding, increases the wound that the zone is hindered in non-creation.
4, shift separation does not often appear in intramedullary nail with nail, and stress shielding often appears in intramedullary nail with lock, all influences union of fracture.
5, metal intramedullary nail (pin) is owing to rigidity, elastic model are bigger than human body bone, therefore often change the original line of tension of skeleton after in the implantable bone, and the skeleton mistake is improved, and after taking out intramedullary pin (pin), skeleton must require reconstruction again to reinvent according to original mechanics own again, these all influence the mechanical strength of skeleton, easily cause fracture once more.
6, metal intramedullary nail (pin) is easily tired and rupture, and influence fixed effect, and is also difficult during taking-up.
Summary of the invention:
This utility model structure is made of intramedullary pin and self-locking nail, the profile of intramedullary pin can be divided into polygon prism type, column type, oval column type, Flos Mume column type or mixed type, the diameter of intramedullary pin is between 1～60mm, length is between 5～500mm, on the different directions of its trunk, boring can be arranged, the diameter of boring then can be installed the self-locking nail of different-diameter less than the diameter of intramedullary pin in the boring.
This utility model provides a kind of interlocking intramedullary nail that absorbs, it selects new absorbed macromolecular material for use, overcome the shortcoming that metal material exists, and have enough anti-folding, bending resistance, tensile strength, and after knitting after fracture art or the orthopaedy and progressively dissolving absorbs.
Description of drawings:
Fig. 1 is the structural representation of this utility model embodiment one.
Fig. 2 is the structural representation of this utility model embodiment two.
The specific embodiment:
Consult shown in Figure 1ly, this utility model is made up of intramedullary pin (1) and self-locking nail (2), and the profile of intramedullary pin (1) is the polygon prism type, and diameter is 10mm, and length is 50mm.
Consult shown in Figure 2ly, the external form of this utility model intramedullary pin (1) is the Flos Mume column type, and diameter is 10mm, and length is 50mm.4 borings (3) can be arranged on its trunk, and the diameter of boring (3) is less than the diameter of intramedullary pin (1), and the diameter of boring (3) can be installed self-locking nail (2) less than the diameter of intramedullary pin (1) in the boring (3).
This utility model is made intramedullary pin and self-locking nail with the polyamide macromolecule polymeric material through resin fibre hot pressing.
The effect of intramedullary pin (1) be keep fracture to line and part alignment, self-locking nail (2) keeps the alignment of fracture when then main.So that the healing that the abundant contact of fracture site and promoting is fractured.Simultaneously,, make and both avoided stress shielding between the fracture site, keep certain relative fine motion again, accelerate the healing of fracture to promote the callus formation of fracture because of intramedullary pin (1) and self-locking nail (2) all have good resistance to compression, bending resistance, tension function.This also is one of this utility model major advantage.
Other advantage of the present utility model is, begins degraded and absorbed after union of fracture, need not do operation for the second time and taking out internal fixation material, reduces the misery and the expense of once operation.The 3rd advantage is to compare with the installation operation of traditional metal interlocking intramedullary nail, only need to cut, do not need to cut 6 otch (these 6 otch are to be used for squeezing into interlocking intramedullary nail, dress sight, localizer and 4 self-locking nails) near the position in joint at the two ends of fracture at fracture.Like this, postoperative early ambulant pain degree alleviates greatly, and scar after the operation reduces, and can increase the adjacent joints mobility, to avoid some iatrogenic wounds, increases fracture back limb function and recovers to greatest extent.The 4th advantage is organic material, do not influence the inspection of patient's project such as CT, nuclear magnetic resonance, NMR, also is not subjected to the influence of safety inspections such as airport.
This utility model is suitable for all tubuloses fracture and orthomorphias, as femur, tibiofibula, humerus, chi radius, refer to (toe) bone, metacarpal bone, fracture of the metatarsal bone and orthopaedy.
Claims (6)
1, a kind of interlocking intramedullary nail that absorbs, it is characterized in that it is made of intramedullary pin and self-locking nail, the diameter of intramedullary pin is between 1～60mm, length is between 5～500mm, on the different directions of its trunk, boring can be arranged, the diameter of boring can be installed the self-locking nail of different-diameter less than the diameter of intramedullary pin in the boring.
2, the interlocking intramedullary nail that absorbs according to claim 1 is characterized in that the profile of intramedullary pin can be the polygon prism type.
3, the interlocking intramedullary nail that absorbs according to claim 1 is characterized in that the profile of intramedullary pin can be column type.
4, the interlocking intramedullary nail that absorbs according to claim 1 is characterized in that the profile of intramedullary pin can be oval column type.
5, the interlocking intramedullary nail that absorbs according to claim 1 is characterized in that the profile of intramedullary pin can be blossom type.
6, the interlocking intramedullary nail that absorbs according to claim 1 is characterized in that the profile of intramedullary pin can be mixed type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271544 CN2522040Y (en) | 2001-12-31 | 2001-12-31 | Absorptive inter-locked intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271544 CN2522040Y (en) | 2001-12-31 | 2001-12-31 | Absorptive inter-locked intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522040Y true CN2522040Y (en) | 2002-11-27 |
Family
ID=33676967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01271544 Expired - Fee Related CN2522040Y (en) | 2001-12-31 | 2001-12-31 | Absorptive inter-locked intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522040Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341466C (en) * | 2003-03-21 | 2007-10-10 | 斯恩蒂斯有限公司 | Intramedullary nail |
| CN103961168A (en) * | 2014-05-14 | 2014-08-06 | 徐斌 | Reinforcing bar for supporting pore passage of bone nail |
| CN108420518A (en) * | 2018-03-23 | 2018-08-21 | 山东航维骨科医疗器械股份有限公司 | Intramedullary nail on a kind of condyle |
| CN110338943A (en) * | 2019-07-17 | 2019-10-18 | 天津市天津医院 | CAD individuation artificial body of the humerus and production method |
-
2001
- 2001-12-31 CN CN 01271544 patent/CN2522040Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341466C (en) * | 2003-03-21 | 2007-10-10 | 斯恩蒂斯有限公司 | Intramedullary nail |
| CN103961168A (en) * | 2014-05-14 | 2014-08-06 | 徐斌 | Reinforcing bar for supporting pore passage of bone nail |
| CN108420518A (en) * | 2018-03-23 | 2018-08-21 | 山东航维骨科医疗器械股份有限公司 | Intramedullary nail on a kind of condyle |
| CN110338943A (en) * | 2019-07-17 | 2019-10-18 | 天津市天津医院 | CAD individuation artificial body of the humerus and production method |
| CN110338943B (en) * | 2019-07-17 | 2023-11-24 | 天津市天津医院 | Computer aided design individuation humerus prosthesis and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |