CN205083593U - Ulna near -end intramedullary nail - Google Patents
Ulna near -end intramedullary nail Download PDFInfo
- Publication number
- CN205083593U CN205083593U CN201520715999.8U CN201520715999U CN205083593U CN 205083593 U CN205083593 U CN 205083593U CN 201520715999 U CN201520715999 U CN 201520715999U CN 205083593 U CN205083593 U CN 205083593U
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- CN
- China
- Prior art keywords
- nailing rod
- medullary nailing
- lock hole
- intramedullary nail
- hole
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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.)
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Abstract
The utility model discloses an ulna near -end intramedullary nail, including the intramedullary nail pole, its characterized in that: intramedullary nail pole near -end is provided with the screw thread, and its distal end sets up power lock and decides the hole, power lock decides the slot hole of hole for setting up along intramedullary nail pole axial, still include the tension nut with intramedullary nail pole near -end screw -thread fit. The ulna near -end intramedullary nail who has above -mentioned structure has the consistent advantage of intramedullary nail. On applying to ulna proximal fracture, the marrow internal fixation, the wound is little, resumes fast.
Description
Technical field
This utility model relates to a kind of intramedullary pin fixing for proximal ulna.
Background technology
Intramedullary pin belongs to the orthopedic fixation device tool in medical apparatus and instruments.Its structure comprises medullary nailing rod, is all provided with screw hole at medullary nailing rod near-end and far-end.The advantage of intramedullary pin is:
1. can control the axial line of force of fracture site, intramedullary nail with lock can prevent fracture rotation deformity, reduce the risk of inner matter fracture;
2. adopt closed and less invasive techniques, decrease postoperative infection rate;
3. reduce the destruction to periosteum blood fortune, retain having the somatomedin of ossification, expand that marrow chip has autologous bone graft effect, muscle contraction produces fine motion provides the factors such as mechanical stimulation to promote union of fracture in hematoma;
4. center is fixed, flexible fastening, stress dispersion avoid stress force shelter reaction, and refracture incidence rate is low;
5. fixation can early functional exercise and heavy burden;
6. internal fixtion takes out by minimal incision *, Wicresoft.
Proximal ulna fracture is more common, system in the marrow not having special applicable proximal ulna to fracture clinically.
Utility model content
For the technical problem of above-mentioned existence, this utility model provides a kind of proximal ulna intramedullary pin, is applicable to proximal ulna fracture.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of proximal ulna intramedullary pin, comprises medullary nailing rod, it is characterized in that: described medullary nailing rod near-end is provided with screw thread, and its far-end arranges power lock hole; Described power lock hole is the elongated hole axially arranged along medullary nailing rod; Also comprise the pressurization nut coordinated with medullary nailing rod proximal threads.
Improve as one, described medullary nailing rod far-end and near-end are respectively arranged with static(al) lock hole; Described static(al) lock hole is circular hole, and its diameter is consistent with lock screw diameter.Static(al) lock hole is used for lock screw and passes, direct locked medullary nailing rod, its good fixing effect.
Improve as above-mentioned improvement is further a kind of, the static(al) lock hole of described medullary nailing rod far-end and power lock hole are axially extremely far arranged by near successively along medullary nailing rod.The effect of power lock hole is to coordinate with lock screw and prevents medullary nailing rod from rotating, and avoids stress shielding to a certain extent.Power lock hole is arranged on distalmost end, and its anti-rotation performance is best.
Preferred as one, the static(al) lock hole of described medullary nailing rod near-end is two along medullary nailing rod axial arranging.By the further locking of intramedullary nails bar of multiple static(al) lock hole.
Preferred as one, described medullary nailing rod is hollow.Closely, mechanical stability increases the contact of bone implants, and the scope of application is wide.
Usefulness of the present utility model is: the proximal ulna intramedullary pin with said structure, has the consistent advantage of intramedullary pin.Apply in proximal ulna fracture, Medullary fixation, wound is little, recovers fast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Labelling in figure: 1 medullary nailing rod, 2 power lock holes, 3 static(al) lock holes, 4 screw threads, 5 pressurizing nuts.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
As shown in Figure 1, this utility model comprises the medullary nailing rod 1 of hollow, and described medullary nailing rod 1 near-end is provided with screw thread 4, and its far-end arranges power lock hole 2; Described power lock hole 2 is the elongated hole axially arranged along medullary nailing rod 1; Medullary nailing rod 1 far-end and near-end are respectively arranged with static(al) lock hole 3; Described static(al) lock hole 3 is circular hole, and its diameter is consistent with lock screw diameter.The static(al) lock hole 3 of described medullary nailing rod 1 far-end is axially extremely far arranged by near along medullary nailing rod 1 successively with power lock hole 2.The static(al) lock hole 3 of medullary nailing rod 1 near-end is two along medullary nailing rod 1 axial arranging.Also comprise the pressurization nut 5 coordinated with medullary nailing rod 1 proximal threads 4.
When using, first medullary nailing rod 1 is inserted pulp cavity, after being of convenient length, utilize localizer lock screw to be squeezed into the power lock hole 2 of far-end.Near-end is screwed into pressurization nut 5 makes fracture site pressurize; Then determine that the static(al) lock hole 3 at far and near two ends is the need of squeezing into lock screw according to classification of fracture.
What static(al) locked is directly locked, does not have activity after locking and between medullary nailing rod 1; And be can be movable on power lock hole 2 direction between the lock screw of power locking and medullary nailing rod 1, its effect is mainly anti-rotational.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a proximal ulna intramedullary pin, comprises medullary nailing rod, it is characterized in that: described medullary nailing rod near-end is provided with screw thread, and its far-end arranges power lock hole; Described power lock hole is the elongated hole axially arranged along medullary nailing rod; Also comprise the pressurization nut coordinated with medullary nailing rod proximal threads.
2. a kind of proximal ulna intramedullary pin according to claim 1, is characterized in that: described medullary nailing rod far-end and near-end are respectively arranged with static(al) lock hole; Described static(al) lock hole is circular hole, and its diameter is consistent with lock screw diameter.
3. a kind of proximal ulna intramedullary pin according to claim 2, is characterized in that: the static(al) lock hole of described medullary nailing rod far-end and power lock hole are axially extremely far arranged by near successively along medullary nailing rod.
4. a kind of proximal ulna intramedullary pin according to claim 2, is characterized in that: the static(al) lock hole of described medullary nailing rod near-end is two along medullary nailing rod axial arranging.
5. a kind of proximal ulna intramedullary pin according to claim 1, is characterized in that: described medullary nailing rod is hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715999.8U CN205083593U (en) | 2015-09-16 | 2015-09-16 | Ulna near -end intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715999.8U CN205083593U (en) | 2015-09-16 | 2015-09-16 | Ulna near -end intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205083593U true CN205083593U (en) | 2016-03-16 |
Family
ID=55474324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520715999.8U Expired - Fee Related CN205083593U (en) | 2015-09-16 | 2015-09-16 | Ulna near -end intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205083593U (en) |
-
2015
- 2015-09-16 CN CN201520715999.8U patent/CN205083593U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20160916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |