CN201398996Y - Interlocking intramedullary nail fixation apparatus - Google Patents
Interlocking intramedullary nail fixation apparatus Download PDFInfo
- Publication number
- CN201398996Y CN201398996Y CN200920019965XU CN200920019965U CN201398996Y CN 201398996 Y CN201398996 Y CN 201398996Y CN 200920019965X U CN200920019965X U CN 200920019965XU CN 200920019965 U CN200920019965 U CN 200920019965U CN 201398996 Y CN201398996 Y CN 201398996Y
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- rod
- nail
- far
- intramedullary nail
- positioning
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Abstract
The utility model discloses an interlocking intramedullary nail fixation apparatus, which comprises a handle and a positioning rod, the positioning rod is connected with the handle, the distal end ofthe positioning rod is provided with a distal positioning support, the positioning rod is provided with a distal positioning link rod, the front end of which is connected with the proximal nail hole of an intramedullary nail, the positioning rod is provided with a limiter which is used to limit the movement of the proximal positioning link rod on the positioning rod, the positioning rod is also provided with a distal positioning link rod which is connected with the proximal nail hole of the intramedullary nail, and one end of the distal positioning link rod is shaped like L. The utility modelnot only can quickly carry out the fixation of the proximal nail hole in one step, but also can accurately fix the position of the proximal nail hole of the intramedullary nail, thus ensuring that thedistal locking nail of the interlocking intramedullary nail can be smoothly implanted and fixed, consequently, unnecessary injuries can be avoided, the pain of a patient can be alleviated, and the labor intensity of medical workers can be reduced as well.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of interlocking intramedullary nail positioner.
Background technology
At present, the intramedullary nail with lock localizer remote stomidium location of clinical use owes accurate, main cause is that the distance that intramedullary pin swings with main locating rod in the art changes, and height gauge can not accurately be pushed up thereon, cause locating hole on locking of intramedullary nail and the main locating rod not on same plane, thereby often cause the boring failure, need change into boring under the X-ray again, both prolong operating time, increased operating difficulty, and also can influence surgical effect.Especially when adopting intramedullary nail with lock to carry out internal fixation treatment to long bone shaft fracture, in closed nailing resetted, the operation wound face is little, and was fixed, and stress shielding is little, and infection rate is low, and the healing rate height is subjected to medical personnel's welcome deeply.But find in using, it but is a difficult point that distal locking nail is accurately implanted, employing has high-precision import apparatus and also has same problem, and its reason is: the influence that "T"-shaped fixed bar does not penetrate femur anterior bone cortex can make the distal locking nail localizer shift forward; Expansion marrow size in the operation does not often match with the diameter of intramedullary pin, fracture end be reset with bone holder fixing after, the resistance when beating into intramedullary pin is big, Chui Ji result often makes intramedullary pin be out of shape simply, causes the lockhole position deviation; To the fracture of femoral inferior segment, because of intramedullary pin is thinner relatively, and the far-end pulp cavity is bigger, and intra medullary nail far-end may produce and rock; When intramedullary pin insert first piece of lock hole drill of pulp cavity good after, in withdrawing from the process of drill bit, it is mobile that intramedullary pin is twisted, and brings pinning to advance the hole difficulty, have to hole once more, repeatedly boring makes the bone duct increase easily, influence is fixed.Sum up the factor of aspect here, its core is the three-dimensional localization design of intramedullary nail with lock distal lockhole is affected and has produced and depart from, often look for inaccurate intra medullary nail far-end locating platform when causing locating rod to insert bone cavity, so finish whole surgery, have to utilize C type arm accurately to locate, adopt free-hand pointed cone method to place, consequently operating time prolongs, and patient is hemorrhage more, and patient patient is hurt also big in X ray length of following open-assembly time.
The utility model content
Technical problem to be solved in the utility model provides a kind of interlocking intramedullary nail positioner, the distal lockhole location is once finished fast, can determine the position of intra medullary nail far-end locking nail hole exactly, thereby the distal locking nail that guarantees intramedullary nail with lock is implanted fixing smoothly, both can avoid unnecessary damage, reduce patient's misery, can reduce medical personnel's labor intensity again.
For solving the problems of the technologies described above, the technical solution of the utility model is: the interlocking intramedullary nail positioner, comprise handle and locating rod, described locating rod and described handle are fixed together, the far-end of described locating rod is provided with the far-end locating rack, described locating rod is provided with the proximally-located connecting rod that front end is connected with intramedullary pin near-end nail hole, described locating rod is provided with and is used to limit the stopping means that described proximally-located connecting rod moves on described locating rod, also be provided with the far-end positioning linkage rod that is connected with intra medullary nail far-end nail hole on the described locating rod, an end of described far-end positioning linkage rod is L-shaped.
As a kind of improvement, the front end of described proximally-located connecting rod is threaded, and at least one intramedullary pin near-end nail pore area has female thread, and the two is by being threaded.
As further improvement, described stopping means is to enclose the corresponding spacer pin of groove with one of described proximally-located connecting rod middle part.
After having adopted technique scheme, the beneficial effect that this utility model is obtained is:
By positioning linkage rod is formed a stable geometry with handle, locating rod and intramedullary pin, effectively prevented swinging of intramedullary pin, guaranteed that height gauge is on intramedullary pin, guaranteed locking nail hole and locating rod on same horizontal plane, thus boring accuracy improve greatly, the accuracy rate of wearing pinning can reach 100%, the whole surgery process is without X-ray machine, thereby can shorten operating time, improve the operation quality, reduce patient trauma.
In addition, far-end positioning linkage rod by " L " shape can make the locating platform contact surface on locating rod and the intra medullary nail far-end strengthen greatly, once success when locating rod is pressed into, marrow nail inserts behind the pulp cavity bar that can be positioned of departing from coronalplane and once playbacks fixingly, so just can guarantee implantation success of distal locking nail energy.Distal locking nail accuracy height can make operation finish smoothly, reduces patient because of repeatedly locking the misery that failure brings; Situation simple to operation, that the useful intramedullary nail with lock of suitable institute is treated.
Description of drawings
Accompanying drawing is the structural representation of this utility model embodiment.
The specific embodiment
As shown in drawings, the interlocking intramedullary nail positioner comprises handle 1 and locating rod 2, and described locating rod 2 is fixed together with described handle 1, by screw rod intramedullary pin 4 is installed on the handle 1.Have proximally-located hole and far-end locating hole 8 on the locating rod 2, be provided with far-end locating rack 3, height gauge 7 is installed on the far-end locating rack 3 at the far-end of described locating rod 2.
In the proximally-located hole on locating rod 2 a proximally-located connecting rod 5 is housed, the front end of proximally-located connecting rod 5 is threaded, and at least one intramedullary pin 4 near-ends nail pore area corresponding with it has female thread, and the two is by being threaded.Certainly, the front end of most advanced and sophisticated proximally-located connecting rod 5 can not adopt screw thread with being connected also of intramedullary pin, and adopts column to add other types of attachment such as locating platform.There is a circle groove at the middle part of proximally-located connecting rod 5, and a spacer pin 9 with above-mentioned groove fit is housed on locating rod 2, in order to near-end positioning linkage rod 5 is fixed.
Also be provided with the far-end positioning linkage rod 6 that is connected with intramedullary pin 4 far-ends nail hole on the described locating rod 2, an end of described far-end positioning linkage rod 6 is L-shaped.Termination by " L " shape, locating platform contact surface on locating rod 2 and intramedullary pin 4 far-ends is strengthened, once success when allowing locating rod 2 be pressed into, make intramedullary pin 4 insert behind the pulp cavitys bar 2 that can be positioned of departing from coronalplane and once playback fixingly, so just can guarantee implantation success of pinning energy of far-end.The horizontal end face of described " L " shape far-end positioning linkage rod 6 for inserting conveniently, changes taper seat into.
Claims (4)
1. interlocking intramedullary nail positioner, comprise handle and locating rod, described locating rod and described handle are fixed together, the far-end of described locating rod is provided with the far-end locating rack, it is characterized in that: described locating rod is provided with the proximally-located connecting rod that front end is connected with intramedullary pin near-end nail hole, described locating rod is provided with and is used to limit the stopping means that described proximally-located connecting rod moves on described locating rod, also be provided with the far-end positioning linkage rod that is connected with intra medullary nail far-end nail hole on the described locating rod, described far-end positioning linkage rod is L-shaped.
2. interlocking intramedullary nail positioner as claimed in claim 1 is characterized in that: the front end of described proximally-located connecting rod is threaded, and at least one intramedullary pin near-end nail pore area has female thread, and the two is by being threaded.
3. interlocking intramedullary nail positioner as claimed in claim 2 is characterized in that: described stopping means is to enclose the corresponding spacer pin of groove with one of described proximally-located connecting rod middle part.
4. interlocking intramedullary nail positioner as claimed in claim 3 is characterized in that: the horizontal end face of an end " L " the shape termination of described far-end positioning linkage rod is a taper seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019965XU CN201398996Y (en) | 2009-04-02 | 2009-04-02 | Interlocking intramedullary nail fixation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920019965XU CN201398996Y (en) | 2009-04-02 | 2009-04-02 | Interlocking intramedullary nail fixation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201398996Y true CN201398996Y (en) | 2010-02-10 |
Family
ID=41658790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920019965XU Expired - Fee Related CN201398996Y (en) | 2009-04-02 | 2009-04-02 | Interlocking intramedullary nail fixation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201398996Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2495331A (en) * | 2011-10-07 | 2013-04-10 | Levant Orthopaedics Ltd | Mechanical locator and positioning device for locking intramedullary nails |
-
2009
- 2009-04-02 CN CN200920019965XU patent/CN201398996Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2495331A (en) * | 2011-10-07 | 2013-04-10 | Levant Orthopaedics Ltd | Mechanical locator and positioning device for locking intramedullary nails |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20100402 |