CN201719364U - Greater trochanter fixed-type femoral nail - Google Patents
Greater trochanter fixed-type femoral nail Download PDFInfo
- Publication number
- CN201719364U CN201719364U CN2010202269842U CN201020226984U CN201719364U CN 201719364 U CN201719364 U CN 201719364U CN 2010202269842 U CN2010202269842 U CN 2010202269842U CN 201020226984 U CN201020226984 U CN 201020226984U CN 201719364 U CN201719364 U CN 201719364U
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- greater trochanter
- intramedullary needle
- fixed
- femur
- master pin
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Abstract
The utility model discloses a greater trochanter fixed-type femoral nail which comprises a hollow main needle of the femoral nail. At least one proximal end locking hole near the main needle end of the femoral nail and at least one distal end locking hole near the main needle head of the femoral nail are arranged on the main needle of the femoral nail. The utility model also comprises a head nail and a lock pin respectively matching with the proximal end locking hole and the distal end locking hole. When in use, the main needle end of the femoral nail is fixed with a greater trochanter fixing shield similar with the outline of the greater trochanter by fixing screws, and a fixing hole fixing the greater trochanter fixing shield to a fixing hole on the main needle of the femoral nail and a plurality of locking holes fixing the greater trochanter fixing shield to the greater trochanter are arranged on the greater trochanter fixing shield. The greater trochanter fixed-type femoral nail of the utility model has the advantages of good reposition and solid fixation for thrypsis of trochanter part.
Description
Technical field
This utility model relates to the intramedullary needle that a kind of orthopaedics is used, and especially relates to a kind ofly carrying out fixed greater trochanter fixed pattern femur intramedullary needle to fracture fragments when the tuberosity part syntripsis.
Background technology
Along with China enters aging society, the sickness rate of old people's intertrochanteric fracture increases gradually.If the employing expectant treatment, bed rest time is long, easily causes various complication even causes patient death.It is 40% that the mortality rate of report Hip Fracture expectant treatment is arranged, and operative treatment is 4.5%.Along with modern internal fixation development of technology, tend at present that operative treatment resets to reach, strong internal fixation and early ambulant.Therefore intertrochanteric fracture of the femur also needs effective internal fixation because its special biomechanics environment then is the more unmanageable position of another kind, and expectant treatment disunion and malunion rate are higher.Intertrochanteric fracture of the femur mostly occurs the old people, the multiple serious internal disease because the old people can be occurred together, and the osteoporosis morbidity is high, more increases its intractability, and the factor relevant with prognosis is main to be the forward and backward mobility of fracture.Syntripsis is meant to occur between tuberosity and the narrow portion of femur and fractures under the femoral bone tuberosity, is a kind of extraordinary type of tuberosity surrounding fracture, accounts for 10%～30% of tuberosity surrounding fracture; Fracture is the cortical bone syntripsis, and healing time is long, because of the folding end is subjected to Adductorius traction action, is difficult to keep reset.Operative treatment adopts gooseneck boom nail steel plate, Jewett steel plate in the past, is difficult to provide strong stable fixing.The intramedullary pin that uses on the bone surgery can not expand marrow, not weaken femoral strength now, but fracture fragments is not had fixation; Intramedullary needle fixedly meets fixation principle biology, has to fix reliably, and the advantage that wound is little, but there is not any fixation at the greater trochanter sclerite in the femur marrow in the past, usually cause its malunion, cause patient obviously to wave on foot.
Summary of the invention
At problem set forth above, this utility model purpose is to provide a kind of can carry out fixed greater trochanter fixed pattern femur intramedullary needle to fracture fragments when the tuberosity part syntripsis.
This utility model is realized by following technical measures, a kind of greater trochanter fixed pattern femur intramedullary needle, comprise hollow intramedullary needle master pin, intramedullary needle master pin is provided with at least one the far-end locking hole near at least one near-end lock hole of intramedullary needle master pin backshank and close intramedullary needle master pin syringe needle, and follow closely and pinning with the matching used head of near-end lock hole and far-end locking hole respectively, the backshank end of described intramedullary needle master pin is fixed with a greater trochanter fixed cover similar to the greater trochanter outline by fixed screw in use, and this greater trochanter fixed cover is provided with a fixing hole and a plurality of being used for that the greater trochanter fixed cover is fixed on the intramedullary needle master pin greater trochanter fixed cover is fixed on lockhole on the greater trochanter.
Wherein the near-end lock hole is preferred one or two.
Wherein the far-end locking hole is preferred one or two.
The greater trochanter fixed cover is integrated tabular or formed and greater trochanter outline similar shapes by many crisscross secure bond.The soft fixture of the hawser that fixed cover can also be made for rustless steel, titanium, titanium alloy or macromolecular material, snap close, holdfast.
In the preferred rustless steel of material of greater trochanter fixed pattern femur intramedullary needle, titanium, the titanium alloy one or more also can use other high-intensity corrosion resistance material individually or simultaneously.
This utility model has increased a greater trochanter fixed cover at the backshank place of common intramedullary needle, like this when the patient is the tuberosity part comminuted fracture, the greater trochanter fixed cover is fixed on the Aculeata of intramedullary needle, and by the greater trochanter fixed cover fracture fragments of greater trochanter is surrounded by fixed cover and to fix, thereby the tuberosity part syntripsis had reduction with good, strong fixed advantage.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment 1;
The decomposition texture sketch map of Fig. 2 this utility model embodiment 1;
The structural representation of Fig. 3 this utility model embodiment 1 greater trochanter fixed cover;
The structural representation of Fig. 4 this utility model embodiment 1 intramedullary needle master pin;
The structural representation of Fig. 5 this utility model embodiment 2.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3 and a kind of greater trochanter fixed pattern femur intramedullary needle of making by titanium alloy shown in Figure 4, comprise hollow intramedullary needle master pin 4, intramedullary needle master pin 4 is provided with near a near-end lock hole 401 of intramedullary needle master pin 4 backshanks and two far-end locking holes 402 of close intramedullary needle master pin syringe needle, and follow closely 1 and two pinning 5 with near-end lock hole 401 and far-end locking hole 402 matching used statures respectively, the backshank end of described intramedullary needle master pin 4 is fixed with one by a vertical titanium alloy bar 303 and two horizontal titanium alloy bar 304 greater trochanter fixed covers 3 similar to the greater trochanter outline that form by fixed screw 2 in use, one top of the vertical titanium alloy bar 303 of this greater trochanter fixed cover 3 is provided with one greater trochanter fixed cover 3 is fixed on fixing hole 301 on the intramedullary needle master pin 4, is distributed with a plurality of being used for greater trochanter fixed cover 3 is fixed on lockhole 302 on the greater trochanter on vertical titanium alloy bar 303 and horizontal titanium alloy bar 304.
A kind of not greater trochanter fixed pattern femur intramedullary needle of making by rustless steel as shown in Figure 5, different with embodiment 2 be in, its near-end lock hole 401 and head nail 1 all are two, and its greater trochanter fixed cover 3 is made up of three vertical rustless steel hawser 303` and two horizontal rustless steel hawser 304`.
More than be that this utility model greater trochanter fixed pattern femur intramedullary needle and its work process are set forth; be used for helping to understand this utility model; but embodiment of the present utility model is not restricted to the described embodiments; anyly do not deviate from the change done under this utility model principle, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (6)
1. greater trochanter fixed pattern femur intramedullary needle, comprise hollow intramedullary needle master pin, intramedullary needle master pin is provided with at least one the far-end locking hole near at least one near-end lock hole of intramedullary needle master pin backshank and close intramedullary needle master pin syringe needle, and follow closely and pinning with the matching used head of near-end lock hole and far-end locking hole respectively, it is characterized in that: the backshank end of described intramedullary needle master pin is fixed with a greater trochanter fixed cover similar to the greater trochanter outline by fixed screw in use, and this greater trochanter fixed cover is provided with a fixing hole and a plurality of being used for that the greater trochanter fixed cover is fixed on the intramedullary needle master pin greater trochanter fixed cover is fixed on lockhole on the greater trochanter.
2. greater trochanter fixed pattern femur intramedullary needle according to claim 1 is characterized in that: described near-end lock hole is one or two.
3. greater trochanter fixed pattern femur intramedullary needle according to claim 1 is characterized in that: described far-end locking hole is one or two.
4. greater trochanter fixed pattern femur intramedullary needle according to claim 1 is characterized in that: described greater trochanter fixed cover is integrated tabular or formed by many crisscross secure bond.
5. greater trochanter fixed pattern femur intramedullary needle according to claim 1 is characterized in that: described fixed cover is the soft fixture of the hawser made of rustless steel, titanium, titanium alloy or macromolecular material, snap close, holdfast.
6. greater trochanter fixed pattern femur intramedullary needle according to claim 1 is characterized in that: the material of described greater trochanter fixed pattern femur intramedullary needle is one or more in rustless steel, titanium, the titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202269842U CN201719364U (en) | 2010-06-10 | 2010-06-10 | Greater trochanter fixed-type femoral nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202269842U CN201719364U (en) | 2010-06-10 | 2010-06-10 | Greater trochanter fixed-type femoral nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201719364U true CN201719364U (en) | 2011-01-26 |
Family
ID=43487630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202269842U Expired - Fee Related CN201719364U (en) | 2010-06-10 | 2010-06-10 | Greater trochanter fixed-type femoral nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201719364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210045A (en) * | 2018-01-03 | 2018-06-29 | 汪志举 | The mating tension band system of proximal femoral nail |
-
2010
- 2010-06-10 CN CN2010202269842U patent/CN201719364U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210045A (en) * | 2018-01-03 | 2018-06-29 | 汪志举 | The mating tension band system of proximal femoral nail |
| CN108210045B (en) * | 2018-01-03 | 2020-12-08 | 汪志举 | Proximal femur intramedullary pin matched tension belt system |
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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: 20110126 Termination date: 20110610 |