CN201290756Y - Clavicle active lock-tail thread intramedullary pin device - Google Patents
Clavicle active lock-tail thread intramedullary pin device Download PDFInfo
- Publication number
- CN201290756Y CN201290756Y CNU2008201135379U CN200820113537U CN201290756Y CN 201290756 Y CN201290756 Y CN 201290756Y CN U2008201135379 U CNU2008201135379 U CN U2008201135379U CN 200820113537 U CN200820113537 U CN 200820113537U CN 201290756 Y CN201290756 Y CN 201290756Y
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- CN
- China
- Prior art keywords
- chuck
- tail
- intramedullary pin
- steel plate
- clavicle
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- Expired - Fee Related
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Abstract
The utility model discloses a movable tail-locking threaded intramedullary nail for the collarbones, which consists of an intramedullary nail with a first thread arranged along the periphery of the front end of the intramedullary nail, and a tail lock provided with a steel plate and a chuck which are arranged inside thereof; the chuck is movably connected with the intramedullary nail by a chuck plughole; a screw cap is movably connected with the chuck by a second thread arranged at the front end of the chuck; the rear part of the chuck is an adjustable take-up device; the chuck is movably integrated with the steel plate by a hinge; and the steel plate is movably connected with the bone by a plurality of bolts. The movable tail-locking threaded intramedullary nail for the collarbones has the advantages of simple structure, convenience and practicality, no need for medullary reaming, better fixation effects, long service life, easy installation and wide range of application. In use, the surgical incision is small, and the length of the incision only needs to restore the fractured ends. With a simple process of surgery, the internal fixtures are convenient to be taken out, and the surgery can be completed by a local anaesthesia in the clinic, thus shortening the time of patients in hospital and alleviating the pains of the patients.
Description
Technical field
This utility model relates to a kind of clavicle lock tail intramedullary pin, the movable lock of especially a kind of clavicle tail screw thread intramedullary pin device.
Background technology
At present, clavicular fracture is a kind of frequently-occurring disease, is one of modal traumatic disease in Orthopeadic Surgery.The internal fixation device of clavicular fracture is more, is mainly used in clinical having: Kirschner wire internal fixation, steel plate internal fixation, memorial alloy are fixed, but these inside-fixtures all have certain defective:
The Kirschner wire internal fixation: very easily get loose at acromial end and withdraw from, even influence fixed effect, cause bone does not connect or malunion, the skin of wearing out that has causes infecting or the like; Can prevent that Kirschner wire from withdrawing from though the backshank of Kirschner wire folding circle back screw is fixed in the clavicle far-end, folding circle difficulty is big, impracticable, and Kirschner wire do not have screw thread, so the near-end of fracturing still can not be satisfied with fixing.
Steel plate is fixed: the oversize influence of otch is attractive in appearance, and periosteum stripping influences union of fracture too much.After the union of fracture, wound is big once more to take out steel plate, expense height, patient's misery.
Memorial alloy: unreliable when being fixed with, because of steeping frozen water, having callus parcel taking-up difficulty big, wound is big during taking-up. and periosteum stripping influences union of fracture too much.
The utility model content
The purpose of this utility model provide a kind of simple in structure, convenient and practical, need not expand the movable lock of the preferable clavicle of marrow, fixed effect tail screw thread intramedullary pin device, not only Shou Shu otch is less, need not bend the tail circle, durable in use, safe and reliable, and install easily, the scope of application is wide.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The movable lock of this clavicle tail screw thread intramedullary pin device by the periphery of front end be provided with first screw thread intramedullary pin and in be provided with steel plate, chuck the tail lock form; Chuck flexibly connects by chuck jack and intramedullary pin; Nut flexibly connects by second screw thread and the chuck that collet front is provided with outward, and the rear portion of chuck is adjustable take-up; Chuck flexibly connects by loose-leaf and steel plate and is integral; Steel plate flexibly connects by a plurality of screws and bone.
The front end of intramedullary pin is coniform or the perching knife shape, and nail is as cylindric; Intramedullary pin, steel plate, screw, nut, chuck constitute by medical steel.
Be respectively equipped with a plurality of screw sockets on the steel plate, a plurality of screws are fixedly mounted on steel plate on the bone by a plurality of screw sockets.
The tail lock is made of chuck, steel plate, nut, screw.
The beneficial effects of the utility model:
This utility model be a kind of simple in structure, convenient and practical, need not expand the movable lock of the preferable clavicle of marrow, fixed effect tail screw thread intramedullary pin device, not only durable in use, safe and reliable, and install easily, the scope of application is wide.Operative incision is little, incision length is only required enough fracture end to be resetted and got final product, and peels off surrounding tissue seldom, helps union of fracture.Need not bend the tail circle, wipe out the redundance intramedullary pin after just the chuck that tail is locked is inserted in intramedullary pin, the reuse screw gets final product tail lock and intramedullary pin overall fixed in the clavicle far-end.The intramedullary pin front end has screw thread, the previous section screw thread is to be used to be screwed into fixedly clavicle near-end of near-end clavicle cortical bone, the tail lock is to be used for the nail tail is fixed in the clavicle far-end, prevent that intramedullary pin from withdrawing from from acromial end, intramedullary pin can not rotate, the two ends of will fracturing are all firmly fixing, help the stable and union of fracture of fracture end.Operation process is simple, easily row.Convenient when taking out inside-fixture, under the outpatient service local anaesthesia, just can finish, patient's hospital stays is short, and is painful few.
Description of drawings
Below in conjunction with the drawings and specific embodiments this utility model is further described.
Fig. 1 is the structure enlarged diagram that chuck and steel plate flexibly connect.
Fig. 2 is the structure enlarged diagram of nut.
Fig. 3 is the section structure for amplifying sketch map of nut.
Fig. 4 is the structure for amplifying sketch map of screw.
Fig. 5 is a combinative structure sketch map of the present utility model.
Structure combining sketch map when Fig. 6 is this device and bone normal condition.
Structural representation when Fig. 7 is the too near acromioclavicular joint of intramedullary pin exit points.
Shown in the figure: 1-intramedullary pin, 2-chuck, 3-steel plate, 4-nut, 5-loose-leaf, 6-screw, 7-tail lock, 8-first screw thread, 9-second screw thread, 10-bone, 11-screw socket, 12-chuck jack.
The specific embodiment
According to Fig. 1-shown in Figure 7, this utility model comprises: intramedullary pin 1, tail lock 7.
The movable lock of this clavicle tail screw thread intramedullary pin device by the periphery of front end be provided with first screw thread 8 intramedullary pin 1 and in be provided with steel plate 3, chuck 2 tail lock 10 form; Chuck 2 flexibly connects by chuck jack 12 and intramedullary pin 1; Nut 4 flexibly connects with chuck 2 by chuck 2 anterior outer second screw threads 9 that are provided with, and the rear portion of chuck 2 is adjustable take-ups; Chuck 2 flexibly connects with steel plate 3 by loose-leaf 5 and is integral; Steel plate 3 flexibly connects by a plurality of screws 6 and bone 10.
The front end of intramedullary pin 1 is coniform or the perching knife shape, and nail is as cylindric; Described intramedullary pin 1, steel plate 4, screw 5, nut 3, chuck 2 constitute by medical steel.
Be respectively equipped with a plurality of screw sockets 11 on the steel plate 3, a plurality of screws 6 are fixedly mounted on steel plate 3 on the bone 10 by a plurality of screw sockets 7.
Operation principle: when doing intramedullary pin with Kirschner wire, if purl tail then move back nail easily not, if with the backshank bending lopping nail that locks, then folding circle difficulty is big, the movable lock of clavicle of the present utility model tail screw thread intramedullary pin, intramedullary pin 1 front end has first screw thread 8, and backshank is with lock just can to solve this type of problem without backshank folding circle.
The movable lock of clavicle tail screw thread intramedullary pin is made up of tail lock 10 (being made up of a block plate 3, chuck 2 and nut 4, two screws 6) and threaded intramedullary pin 1 two parts of front end.Intramedullary pin 1 previous section screw thread 8 is to be used to be screwed into near-end clavicle cortical bone, fixing clavicle near-end, tail lock 10 is to be used for nail tail is fixed in the clavicle far-end, prevents that intramedullary pin 1 from rotating or withdraw from from acromial end, the two ends of will fracturing are all firmly fixing, help the stable and union of fracture of fracture end.And operative incision little (incision length is only required enough fracture end to be resetted and got final product, and generally is about 2-3cm, if oblique or comminuted fracture can be according to property condition proper extension) is peeled off surrounding tissue seldom, helps union of fracture.Need not bend the tail circle, just the chuck 2 of tail lock 10 is inserted in the intramedullary pin tail after, tightening nuts 4 makes chuck 2 tightly clamp the intramedullary pin tail, wipes out the redundance intramedullary pin, reuse screw 6 gets final product tail lock 10 and intramedullary pin 1 overall fixed in the clavicle far-end.Tail lock 10 also can be used with common Kirschner wire separately.
Operation method: adopt the brachial plexus fiber crops, dorsal position, patient's shoulder pad height is done the clavicle front upper place through fracture and is about 2-3cm skin incision (oblique, syntripsis is according to fracture segment length proper extension).Cut platysma and clavicle periosteum, the operation of row subperiosteum appears fracture end, select for use the clavicle lock intramedullary nail tail of the about 2.5-3.0mm of diameter to insert folding end pulp cavity far away after tentative the resetting, pass from the clavicle acromial end, and pass place's skin at clavicle lock intramedullary nail tail at extremitas acromialis claviculae and make an about 1cm otch, the separation trapezius muscle appears this and goes out pin place clavicle, again clavicle lock intramedullary nail tail is pulled out from acromial end and hold fracture end level with both hands before making it, the row reduction of the fracture, then, clavicular intramedullary pin is oppositely pierced nearly folding section pulp cavity, until just penetrating cortical bone.Tightening nuts made chuck tightly clamp the intramedullary pin tail after the chuck 2 that is about to tail lock 10 this moment was inserted in the intramedullary pin tail, wiped out the redundance intramedullary pin, reuse screw steel plate hole with tail lock and intramedullary pin overall fixed in the clavicle far-end.Sew up the incision and promptly finish operation.
The steel plate 3 of tail lock 10 has two screw holes to be used for tail lock 10 and intramedullary pin 1 are fixed on the clavicle far-end, stops intramedullary pin 1 to withdraw from or activity, has solved the shortcoming of the fixing easy withdraw of the needle of simple Kirschner wire.The front end of intramedullary pin 1 is threaded 8, near-end is fixed after being screwed into the fracture near-end, cooperates the fixing two ends of fracturing also to strengthen fixed fastness greatly with tail lock 10.
Claims (4)
1. tail screw thread intramedullary pin device is locked in a clavicle activity, comprise: clavicle lock tail intramedullary pin is characterized in that: the movable lock of this clavicle tail screw thread intramedullary pin device by the periphery of front end be provided with first screw thread (8) intramedullary pin (1) and in be provided with steel plate (3), chuck (2) tail lock (10) and form; Chuck (2) flexibly connects by chuck jack (12) and intramedullary pin (1); Nut (4) flexibly connects with chuck (2) by anterior outer second screw thread (9) that is provided with of chuck (2), and the rear portion of chuck (2) is adjustable take-up; Chuck (2) flexibly connects with steel plate (3) by loose-leaf (5) and is integral; Steel plate (3) flexibly connects by a plurality of screws (6) and bone (10).
2. the movable lock of clavicle according to claim 1 tail screw thread intramedullary pin device, it is characterized in that: the front end of described intramedullary pin (1) is coniform or the perching knife shape, nail is as cylindric; Described intramedullary pin (1), steel plate (4), screw (5), nut (3), chuck (2) constitute by medical steel.
3. the movable lock of clavicle according to claim 1 tail screw thread intramedullary pin device, it is characterized in that: be respectively equipped with a plurality of screw sockets (11) on the described steel plate (3), a plurality of screws (6) are fixedly mounted on steel plate (3) on the bone (10) by a plurality of screw sockets (7).
4. the movable lock of clavicle according to claim 1 tail screw thread intramedullary pin device, it is characterized in that: described tail lock (10) is made of chuck (2), steel plate (3), nut (4), screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201135379U CN201290756Y (en) | 2008-11-13 | 2008-11-13 | Clavicle active lock-tail thread intramedullary pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201135379U CN201290756Y (en) | 2008-11-13 | 2008-11-13 | Clavicle active lock-tail thread intramedullary pin device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201290756Y true CN201290756Y (en) | 2009-08-19 |
Family
ID=41004208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201135379U Expired - Fee Related CN201290756Y (en) | 2008-11-13 | 2008-11-13 | Clavicle active lock-tail thread intramedullary pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201290756Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451073A (en) * | 2020-11-26 | 2021-03-09 | 合肥市第二人民医院 | Clavicle intramedullary nail fixing anchor and clavicle intramedullary nail fixing device |
| CN113827331A (en) * | 2020-06-24 | 2021-12-24 | 北京中安泰华科技有限公司 | Self-locking elastic pressurizing intramedullary needle |
-
2008
- 2008-11-13 CN CNU2008201135379U patent/CN201290756Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113827331A (en) * | 2020-06-24 | 2021-12-24 | 北京中安泰华科技有限公司 | Self-locking elastic pressurizing intramedullary needle |
| CN112451073A (en) * | 2020-11-26 | 2021-03-09 | 合肥市第二人民医院 | Clavicle intramedullary nail fixing anchor and clavicle intramedullary nail fixing device |
| CN112451073B (en) * | 2020-11-26 | 2022-03-08 | 合肥市第二人民医院 | Clavicle intramedullary nail fixing anchor and clavicle intramedullary nail fixing device |
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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: 20090819 Termination date: 20131113 |