CN101138514A - Neck of femur pressurizing locking fixer - Google Patents
Neck of femur pressurizing locking fixer Download PDFInfo
- Publication number
- CN101138514A CN101138514A CNA2007101133744A CN200710113374A CN101138514A CN 101138514 A CN101138514 A CN 101138514A CN A2007101133744 A CNA2007101133744 A CN A2007101133744A CN 200710113374 A CN200710113374 A CN 200710113374A CN 101138514 A CN101138514 A CN 101138514A
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- neck
- locking
- femur
- blade plate
- locking nail
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Abstract
A femoral neck and shaft compression locking fixer includes a bone plate and a locking nail. The bone plate is divided into a neck part, a body part and a tail part. The body part and the tail part are equipped with pressure holes. The locking nail is bolt shape and hollow. The locking nail is divided into a head part and a rod part. An angle of 160-165 degrees is formed between the neck part and the body part of the bone plate. And the angle is corresponding to a femoral near end anatomy surface. The neck part is equipped with two screw holes, inside of which are equipped with threads. The head part of the locking nail is equipped with an external thread. The locking nail is connected with the neck part in a way of thread. The present invention has the advantages that the locking nail, the head part of which is equipped with the external thread, is connected with the bone plate in the way of thread. The rotation and the slipping of the locking nail in the body can be avoided. The front end of the rod part of the locking nail is equipped with a self-tapping head. The screw pitch of the thread on the rod part is larger than the screw pitch of the thread on the head part. Therefore, the present invention takes a compression effect when in use.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of neck of femur pressurizing locking fixer.
Background technology
At present, Orthopeadic Surgery is done the bone fracture device that uses when the neck of femur cadre fractures internal fixation and is mainly comprised dynamic hip screw and lockplate clinically, and the dynamic hip screw blade plate partly is cervical region, body, afterbody; Design has the sleeve that stretches to femoral neck on the cervical region, cooperates the nail that slides to carry out fracture fixation, and the shortcoming of this blade plate is: complex structure, and operation easier is big, long incision, tissue is peeled off many, and wound is big, and the bone road is thick, and anti-rotation performance is poor, and pressurization is limited.The lockplate structure is divided into cervical region, body, afterbody; The cervical region screw is more, and the locking nail head is provided with interior hexagonal, and locking nail bar portion is provided with screw thread, screw thread is closeer, and the lockplate shortcoming of this structure is: the locking nail quantity that penetrates in the neck of femur is more, and angle is bigger, because required nail is many, increased bone destruction, and the possibility that passes outside the bone has been arranged, and because screw is thinner, nail is long shorter, locking nail can not pressurize in vivo, easily rotation, slippage.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structurely, can in human body, pressurize, the anti-slip neck of femur pressurizing locking fixer of anti-rotation.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of neck of femur pressurizing locking fixer, comprising: blade plate, locking nail; Blade plate is divided into cervical region, body, afterbody, and body and afterbody are provided with the pressurization hole; Locking nail is a bolt shape, hollow; Locking nail is divided into the head that is provided with interior hexagonal, the bar portion that is provided with screw thread; It is characterized in that: the cervical region of blade plate becomes 160～165 ° of angles with body, corresponding with the near end of thighbone dissection surface; Cervical region has two screws, and is tapered, is provided with screw thread in the screw; The head of locking nail is provided with external screw thread; Locking nail passes the screw of cervical region, and the head of locking nail is threaded with screw on the cervical region.
According to described neck of femur pressurizing locking fixer, it is characterized in that: screw axial direction on the above-mentioned blade plate and blade plate body form angle, and for dissecting collodiaphyseal angle, the angle of dissecting collodiaphyseal angle is 90 °～135 °.
According to described neck of femur pressurizing locking fixer, it is characterized in that: screw axial direction on the above-mentioned blade plate and blade plate cervical region plane constitute angle, and for dissecting top rake, dissecting top rake is 10 °～30 °.
According to described neck of femur pressurizing locking fixer, it is characterized in that: be parallel to each other between the two screw axial directions on the above-mentioned blade plate.
According to described neck of femur pressurizing locking fixer, it is characterized in that: become cohesion angle or angle of splay, 5 °～15 ° of angles between two screws on the above-mentioned blade plate.
According to described neck of femur pressurizing locking fixer, it is characterized in that: be provided with screw thread in the pressurization hole of the afterbody on the above-mentioned blade plate.
According to described neck of femur pressurizing locking fixer, it is characterized in that: the pitch of above-mentioned locking nail bar portion screw thread is greater than the pitch of head threads.
According to described neck of femur pressurizing locking fixer, it is characterized in that: above-mentioned locking nail bar portion Front-end Design has from tap holder.
According to described neck of femur pressurizing locking fixer, it is characterized in that: the screw thread of above-mentioned locking nail bar portion is a full thread.
Advantage of the present invention is: because the cervical region of the blade plate among the present invention has two screws, screw is tapered, be provided with screw thread in the screw, this design can make head be provided with externally threaded locking nail and conveniently be threaded with blade plate, can prevent that locking nail from rotating in vivo, slippage, the bar portion Front-end Design of locking nail has from tap holder, the pitch of bar portion screw thread is greater than the pitch of head threads, so the effect of pressurization is arranged when use is of the present invention, can make blade plate more fixing, so the present invention is a kind of simple in structure, can pressurize in human body, the anti-slip neck of femur pressurizing locking fixer of anti-rotation.
Description of drawings
Fig. 1 is the cutaway view of blade plate among the present invention;
Fig. 2 is a structural representation of the present invention:
Fig. 3 is Fig. 2 vertical view;
Fig. 4 is the structural representation of locking nail among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described:
A kind of neck of femur pressurizing locking fixer shown in Fig. 1,2,3,4, comprising: blade plate and locking nail 9.Blade plate is divided into cervical region 5, body 2, afterbody 1 as shown in Figure 1, and body and afterbody are provided with pressurization hole 7.
Locking nail is bolt shape as shown in Figure 4, hollow, and locking nail 9 is divided into the head that is provided with interior hexagonal, the bar portion that is provided with screw thread.
As shown in Figure 1,2 one-tenth 160～165 ° of angles of the cervical region 5 and the body of blade plate, corresponding with the near end of thighbone dissection surface.Cervical region has two screws 6, and screw 6 is slightly tapered, is convenient to locking nail and locks, and is provided with screw thread in the screw.The head of locking nail is provided with external screw thread 12, and locking nail 9 passes the screw 6 of cervical region 5, and the head of locking nail is threaded with screw on the cervical region.In the present embodiment, screw axial direction on the blade plate and blade plate body form angle, and for dissecting collodiaphyseal angle 3, collodiaphyseal angle 3 is provided with 90 °, 100 °, 110 °, 120 °, 130 °, 135 ° multiple angles models.
As shown in Figure 3, in the present embodiment, the planar vertical line of the axis of the screw 6 on the blade plate 5 and blade plate cervical region constitutes angle, be to dissect top rake 10, and top rake about 10 minutes two kinds, angle has 10 °, 15 °, 20 °, 25 °, 30 ° multiple models.
As shown in Figure 1, in the present embodiment, can be parallel to each other between the axis of the screw 6 on the blade plate, perhaps become cohesion angle 4 or angle of splay, 5 °～15 ° of angles between the screw axial direction on the blade plate.In the present embodiment, be provided with screw thread 8 in the pressurization hole of the afterbody on the blade plate.
As shown in Figure 4, in the present embodiment, the pitch of locking nail bar portion screw thread 13 can be pressurizeed to fracture end in the locking process greater than the pitch of head threads 12.In the present embodiment, locking nail bar portion Front-end Design has from tap holder 11.In the present embodiment, the screw thread of locking nail bar portion can be full thread.
Claims (9)
1. a neck of femur pressurizing locking fixer comprises: blade plate and locking nail (9); Blade plate is divided into cervical region (5), body (2), afterbody (1), and body and afterbody are provided with pressurization hole (7); Locking nail is a bolt shape, hollow; Locking nail is divided into head that is provided with interior hexagonal and the bar portion that is provided with screw thread; It is characterized in that: the cervical region of blade plate (5) becomes 160～165 ° of angles with body (2), and is corresponding with the near end of thighbone dissection surface; Cervical region (5) has two screws (6), and screw (6) is tapered, is provided with screw thread in the screw; The head of locking nail is provided with external screw thread (12); Locking nail (9) passes the screw (6) of cervical region, and the head of locking nail is threaded with screw (6) on the cervical region.
2. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: the axis of the screw on the above-mentioned blade plate (6) and blade plate body form angle, and for dissecting collodiaphyseal angle (3), the angle of dissecting collodiaphyseal angle (3) is 90 °～135 °.
3. neck of femur pressurizing locking fixer according to claim 1, it is characterized in that: the planar vertical line of the axis of the screw on the above-mentioned blade plate (6) and blade plate cervical region constitutes angle, for dissecting top rake (10), dissecting top rake (10) is 10 °～30 °.
4. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: be parallel to each other between the axis of two screws (6) on the above-mentioned blade plate.
5. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: become cohesion angle (4) or angle of splay, 5 °～15 ° of angles between two screws (6) on the above-mentioned blade plate.
6. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: be provided with screw thread (8) in the pressurization hole of the afterbody on the above-mentioned blade plate.
7. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: the pitch of above-mentioned locking nail bar portion screw thread (13) is greater than the pitch of head threads (12).
8. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: above-mentioned locking nail bar portion Front-end Design has from tap holder (11).
9. neck of femur pressurizing locking fixer according to claim 1 is characterized in that: the screw thread of above-mentioned locking nail bar portion is a full thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133744A CN101138514A (en) | 2007-10-18 | 2007-10-18 | Neck of femur pressurizing locking fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133744A CN101138514A (en) | 2007-10-18 | 2007-10-18 | Neck of femur pressurizing locking fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101138514A true CN101138514A (en) | 2008-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101133744A Pending CN101138514A (en) | 2007-10-18 | 2007-10-18 | Neck of femur pressurizing locking fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101138514A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167729A1 (en) * | 2011-06-09 | 2012-12-13 | Xu Daqiang | Torsion-measurable combination-type compression locking device for joint fracture |
| CN102824210A (en) * | 2012-09-11 | 2012-12-19 | 山东省文登市整骨科技开发有限公司 | Locking hole of inner fixing frame |
| CN102961175A (en) * | 2012-08-29 | 2013-03-13 | 苏州瑞华医院有限公司 | External fixing and locking nail plate system for treating femoral intertrochanteric fracture |
| CN103356276A (en) * | 2012-04-05 | 2013-10-23 | 爱派司生技股份有限公司 | Interlocking bone fixator |
| CN103610492A (en) * | 2013-11-26 | 2014-03-05 | 胡宁敏 | Adjustable special-shaped proximal femur locking plate |
| CN104382641A (en) * | 2014-11-16 | 2015-03-04 | 邓宇 | Special withholding steel plate for internal fixation of acromioclavicular dislocation |
| CN104825216A (en) * | 2015-05-27 | 2015-08-12 | 熊静 | Metaphysis pressurizing fixator |
-
2007
- 2007-10-18 CN CNA2007101133744A patent/CN101138514A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167729A1 (en) * | 2011-06-09 | 2012-12-13 | Xu Daqiang | Torsion-measurable combination-type compression locking device for joint fracture |
| CN103356276A (en) * | 2012-04-05 | 2013-10-23 | 爱派司生技股份有限公司 | Interlocking bone fixator |
| CN102961175A (en) * | 2012-08-29 | 2013-03-13 | 苏州瑞华医院有限公司 | External fixing and locking nail plate system for treating femoral intertrochanteric fracture |
| CN102824210A (en) * | 2012-09-11 | 2012-12-19 | 山东省文登市整骨科技开发有限公司 | Locking hole of inner fixing frame |
| CN103610492A (en) * | 2013-11-26 | 2014-03-05 | 胡宁敏 | Adjustable special-shaped proximal femur locking plate |
| CN104382641A (en) * | 2014-11-16 | 2015-03-04 | 邓宇 | Special withholding steel plate for internal fixation of acromioclavicular dislocation |
| CN104825216A (en) * | 2015-05-27 | 2015-08-12 | 熊静 | Metaphysis pressurizing fixator |
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