CN2253640Y - Femoral rotator connected intrabony fixator - Google Patents
Femoral rotator connected intrabony fixator Download PDFInfo
- Publication number
- CN2253640Y CN2253640Y CN 95246709 CN95246709U CN2253640Y CN 2253640 Y CN2253640 Y CN 2253640Y CN 95246709 CN95246709 CN 95246709 CN 95246709 U CN95246709 U CN 95246709U CN 2253640 Y CN2253640 Y CN 2253640Y
- Authority
- CN
- China
- Prior art keywords
- synthetism
- screw
- steel plate
- femoral
- fracture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an inner fixer for bonesetting of the femoral rotators. The utility model is composed of a bonesetting steel plate with screw holes, fastening screws and common screws. The shape of the bonsetting steel plate is matched with the femoral bone. The tail end of each fastening screw is provided with cone point screw threads, the middle part is a smooth round rod and a stress surface of the inner side of the head is a spherical surface. The utility model directly penetrates through the fracture wire between femoral rotators, and resetting binding force is generated to the fracture position. Circumferential entering angle of the relative bonesetting steel plate can be selected in advance according to fracture position, and the common screws are fixed with other positions of the femoral bone. The utility model has the advantages of strong resetting binding force, wide application range for fracture, multi-nail fixing, high fastness and good resetting. Patients can move early.
Description
This utility model relates to fixedly medical apparatus and instruments of a kind of synthetism, especially femoral trochanter synthetism inner fixer.
Intertrochanteric fracture is common orthopaedic disease, and is special because of its position, so brought certain difficulty for clinical synthetism fixing operation, directly has influence on reduction of the fracture effect and therapeutic effect.Now to the external fixation reduction of the fracture commonly used of the fracture of this kind and internal fixation reduction of the fracture synthetism operation.External fixation operation must be squeezed into steel nail at ilium and the key place of femur under fluoroscopic monitoring, be fixed on externally thereby will straddle steel plate between ilium and femur, realizes that synthetism resets.This operation is a little less than manipulation in vitro, the reduction of the fracture are in conjunction with weak effect, constant intensity.The Inner fixing operation is directly with steel nail or screw the corresponding fracture place that steel plate is fixed on femur to be carried out synthetism, to improving reduction of the fracture effect, shorten healing stage and all played better action, " Maxwell " synthetism gooseneck boom pin structure commonly used is insecure but Inner is fixing, the loosening easily slippage of afterbody screw, be again that single nail is fixing, corrective surgery can not early ambulant, especially after " Maxwell " synthetism gooseneck boom nail passes steel plate, angle basic fixed with steel plate, be that steel plate position determines that the synthetism approach axis of back " Maxwell " synthetism gooseneck boom nail is also definite substantially, therefore, to the comminuted intertrochanteric fracture of particularly labeling facial cleft reset and fixed effect not good enough.
The purpose of this utility model provides a kind of femoral trochanter synthetism inner fixer, it adopts many oncomelanias stricture of vagina to be connected and fixed, sound construction, the adhesion that resets is strong, and the circumferential angle of the relative synthetism steel plate of the screw of synthetism can be regulated according to the intertrochanteric fracture position within the specific limits in advance, further enlarge the scope of application of femoral trochanter synthetism internal fixation, improved reduction of the fracture effect.
Task of the present utility model is finished like this: femoral trochanter synthetism inner fixer, to form by the synthetism steel plate and the screw of band screw hole, and the shape of synthetism steel plate and greater trochanter of femur and femoral shaft match.Screw divides plain screw and holding screw.Holding screw is made of afterbody awl end screw thread, middle smooth round bar and head, and its inner portion stress surface is a sphere.The head of synthetism steel plate has a counterbore that mates with holding screw at least.
The femoral trochanter synthetism Inner holder that this utility model provides, its synthetism steel plate shape and femur coincide.Femur is carried out many screw attachment, and synthetism resets fixed.The synthetism that holding screw is exclusively used in fracture resets, stressed sphere of its inner portion and synthetism steel plate counterbore coupling, make the relative synthetism steel plate of holding screw can realize circumferential angle Selection, to determine best synthetism approach axis according to fracture, be used with plural holding screw, especially be suitable for synthetism higher comminuted the coming of age of difficulty that reset and go up the intertrochanteric fracture of facial cleft.Plain screw has then played the auxiliary fixation that resets.Through 150 routine clinical trials, the femoral trochanter synthetism inner fixer that uses this utility model to provide can be used for the intertrochanteric fracture of any kind, the activity of can not bearing a heavy burden next day of patient's postoperative, 4 Zhou Kedan turn walking, can abandon in 6-8 week and turn walking, and " Maxwell " synthetism gooseneck boom nail has been done sth. in advance 2-3 week.Through stress test, its constant intensity is followed closely more than 2 times greater than " Maxwell " synthetism gooseneck boom.
The utility model is described in further detail below in conjunction with drawings and Examples.
The synthetism steel plate front view of the femoral trochanter synthetism Inner holder that Fig. 1 provides for this utility model.
Fig. 2 is the right view of Fig. 1 structure.
The holding screw front view of the femoral trochanter synthetism inner fixer that Fig. 3 provides for this utility model.
Fig. 4 is a thread tooth partial enlarged drawing among Fig. 3.
The plain screw front view of the femoral trochanter synthetism inner fixer that Fig. 5 provides for this utility model.
The user mode figure of the femoral trochanter synthetism Inner holder that Fig. 6 provides for this utility model.
Femoral trochanter synthetism inner fixer is made up of Fig. 1, synthetism steel plate 1 shown in Figure 2, holding screw 2 shown in Figure 3 and plain screw 3 shown in Figure 5.The cambered surface that vertically be and the femoral trochanter of synthetism steel plate head as shown in Figure 1 matches.By the relation line among Fig. 2 and coincide section as can be known synthetism steel plate bar portion laterally be the cambered surface that matches with femoral shaft.Screw hole on the synthetism steel plate 1 is vertical arrangement.Present embodiment is established two conical surface counterbore or sphere counterbores that mate with holding screw 2 at the lower half of synthetism steel plate 1 head; The both sides of this counterbore, promptly respectively there are one and four counterbores that mate with plain screw in upside head and following side lever portion.As shown in Figure 3, holding screw 2 is made of afterbody awl end screw thread, middle smooth round bar and head, its inner portion stress surface, be that the mating surface of the conical surface or sphere counterbore is a sphere on itself and the synthetism steel plate, to be implemented in the synthetism reattachment surgery, holding screw 2 relative synthetism steel plates 1 can be realized circumferential angle Selection, and on this selected angle effective synthetism are carried out in the intertrochanteric fracture position and fix.For strengthening the adhesion between fracture, prevent screw slippage, loosening, as shown in Figure 4, holding screw adopts saw-tooth thread.Plain screw 3 shown in Figure 5 by synthetism steel plate counterbore, is fixed on fracture position in addition, has played the auxiliary fixation that resets.Shown in Figure 6 is a kind of user mode of femoral trochanter synthetism inner fixer: the awl end of two holding screws is threaded into femoral head 5, middle smooth round bar passes intertrochanteric fracture line 6, and screw the generation clamping force with holding screw, fracture site is carried out synthetism reset, five 3 of plain screws are fixed on synthetism steel plate 1 on greater trochanter of femur 4, lesser trochanter 7 and the femoral shaft 8 respectively.The most handy OOCr of material of femoral trochanter synthetism inner fixer
16Ni
13MO
3, the synthetism steel plate length is 170～250mm, and width is 19～22mm, and holding screw afterbody awl end reach is preferably chosen 30mm.
Claims (5)
1. femoral trochanter synthetism inner fixer has the synthetism steel plate (1) of band screw hole and screw (2), (3), it is characterized in that:
A. screw divides plain screw (3) and holding screw (2), and holding screw (2) is made of afterbody awl end screw thread, middle smooth round bar and head, and its inner portion stress surface is a sphere,
B. the head of synthetism steel plate (1) has a counterbore that mates with holding screw at least.
2. femoral trochanter synthetism inner fixer according to claim 1 is characterized in that: synthetism steel plate (1) is gone up and the counterbore of holding screw coupling is a conical surface counterbore.
3. femoral trochanter synthetism inner fixer according to claim 1 is characterized in that: synthetism steel plate (1) is gone up and the counterbore of holding screw coupling is the sphere counterbore.
4. femoral trochanter synthetism inner fixer according to claim 1 is characterized in that: the screw thread of holding screw (2) is a zigzag.
5. femoral trochanter synthetism inner fixer according to claim 1 is characterized in that: the screw hole on the synthetism steel plate (1) is vertical arrangement, and the both sides of holding screw counterbore are the plain screw holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95246709 CN2253640Y (en) | 1995-12-21 | 1995-12-21 | Femoral rotator connected intrabony fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95246709 CN2253640Y (en) | 1995-12-21 | 1995-12-21 | Femoral rotator connected intrabony fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2253640Y true CN2253640Y (en) | 1997-05-07 |
Family
ID=33886248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95246709 Expired - Fee Related CN2253640Y (en) | 1995-12-21 | 1995-12-21 | Femoral rotator connected intrabony fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2253640Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450452C (en) * | 2003-03-25 | 2009-01-14 | 矫正医学技术有限公司 | Hybrid interlocking proximal femoral fracture fixation |
| CN103298431A (en) * | 2010-08-13 | 2013-09-11 | 朴智善 | Femoral lesser trochanter securing device for firmly securing the lesser trochanter and the surrounds and stably strengthening the same so as to allow artificial hip replacement surgery |
| CN108143476A (en) * | 2017-11-22 | 2018-06-12 | 朱新红 | A kind of fracture fixation device |
-
1995
- 1995-12-21 CN CN 95246709 patent/CN2253640Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450452C (en) * | 2003-03-25 | 2009-01-14 | 矫正医学技术有限公司 | Hybrid interlocking proximal femoral fracture fixation |
| CN103298431A (en) * | 2010-08-13 | 2013-09-11 | 朴智善 | Femoral lesser trochanter securing device for firmly securing the lesser trochanter and the surrounds and stably strengthening the same so as to allow artificial hip replacement surgery |
| CN108143476A (en) * | 2017-11-22 | 2018-06-12 | 朱新红 | A kind of fracture fixation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |