CN1911182A - Intramedullary nailing system with lock for fracture of neck of femur - Google Patents
Intramedullary nailing system with lock for fracture of neck of femur Download PDFInfo
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- CN1911182A CN1911182A CN 200610112614 CN200610112614A CN1911182A CN 1911182 A CN1911182 A CN 1911182A CN 200610112614 CN200610112614 CN 200610112614 CN 200610112614 A CN200610112614 A CN 200610112614A CN 1911182 A CN1911182 A CN 1911182A
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- metal bar
- described metal
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- femur
- neck
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Abstract
An intramedullary needle fixing system with lock for the fracture of femur neck is composed of a metal rod transplanted between femur head and tuberosity part, a locator at the femur head end of said metal rod for preventing the relative rotation between femur head and tuberosity part, and a connector at the tuberosity end of said metal rod for connecting the metal rod to tuberosity part.
Description
Technical field
The present invention relates to a kind of intramedullary nailing system that is used to fracture, belong to technical field of medical instruments.
Background technology
At present, treatment for fracture of femoral neck, concrete condition according to the patient can adopt internal fixation or artificial joint replacement, internal fixation method mainly divides two kinds, be that hollow nail is fixed or hip power screw (DHS) fixed form, this dual mode all can obtain satisfied union of fracture effect, is widely used at world wide.Because hollow nail or DHS are the half-thread screw, so it has the persistent pressure effect to the fracture of femoral neck end, though the advantage of this persistent pressure is to promote union of fracture, but its shortcoming is the neck of femur cripetura that can cause after fracture of femoral neck heals, and then cause the problem of two aspects, cause a little less than the relative power of gluteus medius owing to the neck of femur cripetura on the one hand, cripetura significantly can have a strong impact on patient's normal gait, on the other hand, the nail Caudad of hollow nail or DHS is recessed cortical bone outward after the neck of femur cripetura, soft tissue causes senses of discomfort such as pain around the friction fascia latas etc., and part patient has the sensation of snapping hip.The nail tail withdraws from when obvious, and the patient tangiblely trails the activity of hip joint and activity causes negative effect to its psychology to the nail of giving prominence to from external.In addition,, cause patient to sleep by the Ipsilateral clinostatism, influence quality of life because outstanding nail tail roof pressure is suffered from hip outside skin.
Summary of the invention
The object of the present invention is to provide a kind ofly, not only guaranteed union of fracture but also prevented that fracture of femoral neck healing back from the intramedullary nailing system with lock for fracture of neck of femur of cripetura taking place for the fracture of femoral neck end provides healing environment stable, no persistent pressure.
For achieving the above object, technical solution of the present invention is
A kind of intramedullary nailing system with lock for fracture of neck of femur, comprise the metal bar between an implanted femur tuberosity part and the femoral head, the femoral head end of this metal bar is provided with and is used to prevent femoral head and the counterrotating positioner of femoral trochanteric, and the tuberosity end of metal bar is provided with the connecting device that is used to connect femoral trochanteric and described metal bar.
Further, described metal bar is the hollow metal rod.
Further, described connecting device is a pinning that is bolted in described metal bar tuberosity end and traverses described metal bar.
Further, described connecting device is several pinnings that are bolted in described metal bar tuberosity end and traverse described metal bar, each pinning move towards difference.
Further, described connecting device is another hollow metal rod of being located at described metal bar tuberosity end, be provided with one in this hollow metal rod and be used to prevent the alignment pin that the tuberosity end of described metal bar withdraws from, this alignment pin traverses and is bolted in the tuberosity end of described metal bar, and described hollow metal rod lower end is provided with pinning.
Further, described connecting device is for being socketed in the straight shape steel plate of described metal bar end by a metal canula, and the end of described metal canula is a blind hole.
Further, described metal bar, metal canula are provided with the pinning that traverses described metal bar, metal canula, and the angle between described metal canula and the described straight shape steel plate is the 90-135 degree.
Further, described positioner is a pinning that is bolted in described metal bar femoral head end and traverses described metal bar.
Further, described positioner is several pinnings that are bolted in described metal bar femoral head end and traverse described metal bar, each pinning move towards difference.
Further, described positioner be arranged between described femoral trochanteric and the femoral head, and described metal bar between leave another metal bar of spacing, this metal bar is parallel to each other with described metal bar, length is identical.
After adopting said structure, owing to the present invention includes the metal bar between an implanted femur tuberosity part and the femoral head, this metal bar one end is provided with the connecting device that is used to connect femoral trochanteric and described metal bar, the other end is provided with and is used to prevent femoral head and the counterrotating positioner of femoral trochanteric, therefore in fracture patient recovery process, femoral head end, femoral head tuberosity end passes through connecting device respectively, the sclerotin of metal bar and femoral head and tuberosity part fixedly secures, for the fracture of femoral neck end provides stable, the healing environment of no persistent pressure not only guarantees union of fracture but also prevent that neck of femur healing back from cripetura taking place.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the structural representation of the embodiment of the invention two;
Fig. 3 is the structural representation of the embodiment of the invention three;
Fig. 4 is the structural representation of the embodiment of the invention four.
The specific embodiment
Shown in Fig. 1 embodiment of the invention one, intramedullary nailing system with lock for fracture of neck of femur comprises a metal bar 1, these metal bar 1 one ends are threaded 11, the other end is provided with and traverses several through holes 12 metal barred body, different trends, through hole 12 inwalls are equipped with screw thread, and all are bolted with pinning 2 in each through hole 12; Described through hole 12 also can only be provided with one;
After fracture of femoral neck resets, earlier produce osseous tunnel from femoral trochanteric 3 to femoral head 4, after the screw tap tapping described metal bar 1 is screwed in osseous tunnel, the end that metal bar 1 is provided with screw thread 11 is fixed in the described femoral head 4, then described pinning 2 is screwed in the through hole 12 of described metal bar 1 other end, and make described pinning 2 penetrate the cortical bone of described femoral trochanteric 3;
For preventing femoral head 4 with respect to 3 rotations of described femoral trochanteric, the screwed thin metal rod 5 of implantation one tail end between described femoral trochanteric 3 and femoral head 4, this metallic rod 5 is identical with described metal bar 1 length and be parallel to each other; Described metal bar 1 also can adopt the hollow metal rod, and for metal bar 1 is connected closely with described femoral head 4, the diameter of the end of thread 11 of described metal bar 1 is greater than the diameter of metal bar.
Embodiment two as shown in Figure 2, intramedullary nailing system with lock for fracture of neck of femur of the present invention comprises a hollow metal rod 1 ', the head 11 ' of this metal bar 1 ' and afterbody 12 ' are respectively equipped with several through holes 13 ', 14 ', described through hole 13 ', 14 ' the trends of all traversing described metal bar 1 ' and each through hole 13 ' have nothing in common with each other, the trend of each through hole 14 ' has nothing in common with each other, respectively be bolted with a threaded pinning 2 ' in described each through hole 13 ', this pinning 2 ' all traverses described metal bar 1 ', and its two ends place respectively in the sclerotin of described femoral head 4, respectively be bolted with a threaded pinning 5 ' in described each through hole 14 ', this pinning 5 ' all traverses described metal bar 1 ' and its two ends place respectively in the sclerotin of described femoral trochanteric 3; The through hole 13 ' of the head of described metal bar 1 ', the through hole 14 ' of afterbody can only be provided with one.
After fracture of femoral neck resets, earlier produce osseous tunnel from femoral trochanteric 3 to femoral head 4, after the screw tap tapping described metal bar 1 ' is screwed in osseous tunnel, through hole 13 ' in described head 11 ' is implanted into described pinning 2 ', the two ends of pinning 2 ' place respectively in the sclerotin of described femoral head 4, through hole at described metal bar 1 ' afterbody 12 ' is implanted into described pinning 5 ' then, and pinning 5 ' two ends place respectively in the sclerotin of described femoral trochanteric 3;
Embodiment three as shown in Figure 3, intramedullary nailing system with lock for fracture of neck of femur of the present invention comprises a hollow metal rod 6, these metal bar 6 front ends are provided with screw thread, the diameter of end of thread part is greater than the diameter of metal bar, metal bar 6 ends are connected with side plate 8, and this side plate 8 is shape steel plate always, and straight shape steel plate is socketed in the end of described metal bar 6 by a metal canula 81, the end of metal canula 81 is a blind hole, and the angle between described metal canula 81 and the described straight shape steel plate is the 90-135 degree; For preventing that femoral head 4 and femoral trochanteric 3 relative rotations from producing deformity, also be provided with the screwed thin metal rod 5 ' of a tail end between described femoral trochanteric 3 and the femoral head 4, this metallic rod is identical with described metal bar 6 length and be parallel to each other;
After fracture of femoral neck resets, earlier produce osseous tunnel from femoral trochanteric 3 to femoral head 4, after the screw tap tapping described metal bar 6 is screwed in osseous tunnel, described metal canula 81 is enclosed within described metal bar 6 ends, after fracture end precharge, fix with described femoral trochanteric 3 with the straight shape steel plate part of screw, then described thin metal rod 5 ' is implanted between described femoral trochanteric 3 and the femoral head 4 side plate;
For preventing femoral head 4 and femoral trochanteric 3 relative rotations, also one or several through holes can be set at the front end of described metal bar 6, the trend that each through hole all traverses described metal bar 6 and each through hole has nothing in common with each other, respectively be bolted with a threaded pinning in described each through hole, this pinning all traverses described metal bar 6, and its two ends place respectively in the sclerotin of described femoral head 4.
When fracture of femoral neck is serious, a pinning 7 that traverses described metal bar, metal canula is set, on described metal bar 6, metal canula 81 to strengthen the stability of metal bar.
Embodiment four as shown in Figure 4, intramedullary nailing system with lock for fracture of neck of femur of the present invention comprises the metal bar 6 ' between an implanted femur tuberosity part 3 and the femoral head 4, this metal bar 6 ' femoral head end is provided with screw thread, the diameter of threaded portion is greater than the diameter of metal bar 6 ', metal bar 6 ' tuberosity end is provided with a hollow metal rod 7 ', this metal bar 7 ' is located in the sclerotin of femoral trochanteric 3, and be provided with pinning 8 ' between the sclerotin of metal bar 7 ' lower end and femoral trochanteric 3, this pinning 8 ' runs through the femoral shaft cortical bone that described metal bar 7 ' and two ends penetrate femoral trochanteric 3; For preventing femoral head 4 and femoral trochanteric 3 relative rotations, also be provided with a thin metal bar 9 ' apart from described metal bar 6 ' certain distance between described femoral trochanteric 3 and the femoral head 4, this thin metal bar 9 ' is parallel to each other with described metal bar 6 '; Be provided with one in the described metal bar 7 ' and be used to prevent the alignment pin 10 that the tuberosity end of described metal bar 6 ' withdraws from, this alignment pin 10 traverses and is bolted in the tuberosity end of described metal bar 6 '.
Claims (10)
1, a kind of intramedullary nailing system with lock for fracture of neck of femur, it is characterized in that, comprise the metal bar between an implanted femur tuberosity part and the femoral head, the femoral head end of this metal bar is provided with and is used to prevent femoral head and the counterrotating positioner of femoral trochanteric, and the tuberosity end of metal bar is provided with the connecting device that is used to connect femoral trochanteric and described metal bar.
2, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 1 is characterized in that, described metal bar is the hollow metal rod.
3, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2 is characterized in that, described connecting device is a pinning that is bolted in described metal bar tuberosity end and traverses described metal bar.
4, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2 is characterized in that, described connecting device is several pinnings that are bolted in described metal bar tuberosity end and traverse described metal bar, each pinning move towards difference.
5, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2, it is characterized in that, described connecting device is another hollow metal rod of being located at described metal bar tuberosity end, be provided with one in this hollow metal rod and be used to prevent the alignment pin that the tuberosity end of described metal bar withdraws from, this alignment pin traverses and is bolted in the tuberosity end of described metal bar, and described hollow metal rod lower end is provided with pinning.
6, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2 is characterized in that, described connecting device is for being socketed in the straight shape steel plate of described metal bar end by a metal canula, and the end of described metal canula is a blind hole.
7, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 6, it is characterized in that, described metal bar, metal canula are provided with the pinning that traverses described metal bar, metal canula, and the angle between described metal canula and the described straight shape steel plate is the 90-135 degree.
8, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2 is characterized in that, described positioner is a pinning that is bolted in described metal bar femoral head end and traverses described metal bar.
9, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2 is characterized in that, described positioner is several pinnings that are bolted in described metal bar femoral head end and traverse described metal bar, each pinning move towards difference.
10, intramedullary nailing system with lock for fracture of neck of femur as claimed in claim 2, it is characterized in that, described positioner be arranged between described femoral trochanteric and the femoral head, and described metal bar between leave another metal bar of spacing, this metal bar is parallel to each other with described metal bar, length is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610112614 CN1911182A (en) | 2006-08-25 | 2006-08-25 | Intramedullary nailing system with lock for fracture of neck of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610112614 CN1911182A (en) | 2006-08-25 | 2006-08-25 | Intramedullary nailing system with lock for fracture of neck of femur |
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| Publication Number | Publication Date |
|---|---|
| CN1911182A true CN1911182A (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610112614 Pending CN1911182A (en) | 2006-08-25 | 2006-08-25 | Intramedullary nailing system with lock for fracture of neck of femur |
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| CN (1) | CN1911182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143430A (en) * | 2020-01-22 | 2021-07-23 | 杨琳敏 | Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar |
-
2006
- 2006-08-25 CN CN 200610112614 patent/CN1911182A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113143430A (en) * | 2020-01-22 | 2021-07-23 | 杨琳敏 | Humerus proximal elbow joint fracture reduction fixing method of interlocking intramedullary double-long steel bar |
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