CN2467067Y - Fracture mono cortex multi-point internal fixer - Google Patents
Fracture mono cortex multi-point internal fixer Download PDFInfo
- Publication number
- CN2467067Y CN2467067Y CN 01216714 CN01216714U CN2467067Y CN 2467067 Y CN2467067 Y CN 2467067Y CN 01216714 CN01216714 CN 01216714 CN 01216714 U CN01216714 U CN 01216714U CN 2467067 Y CN2467067 Y CN 2467067Y
- Authority
- CN
- China
- Prior art keywords
- steel plate
- fracture
- multiple spot
- inner fixer
- trip bolt
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 15
- 230000001054 cortical effect Effects 0.000 claims abstract description 6
- 238000010079 rubber tapping Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 230000035876 healing Effects 0.000 abstract 1
- 230000011164 ossification Effects 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 description 6
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 208000006735 Periostitis Diseases 0.000 description 5
- 210000003460 periosteum Anatomy 0.000 description 5
- 208000024779 Comminuted Fractures Diseases 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a fracture single-cortex multi-point inner fixer which is composed of a steel plate, a fastening screw and nuts. The front end of the fastening screw is a sharp threaded self-tapping type, the middle part is obviously thickened, and the rear part is provided with screw threads; the cross section of the steel plate forms an arc shape, and the column is provided with five to ten screw holes in a Z-shaped mode; the screw holes are provided with circular grooves which can be embedded with the nuts. The thickened middle part of the fastening screw can make the steel plate keep a gap with cortical bone when the steel plate is stably fixed, the externally bone formation of periostea on the steel plate side can not be impeded, and the maximum effective contact of the cross section can be met; a strong fixation effect is achieved, and the utility model is suitable for the bone healing of the broken end.
Description
This utility model relates to a kind of medical apparatus and instruments, specifically, is a kind of orthopedic fixation device tool.
At present, in treatment of fractures, often adopt steel plate screw internal fixation and intramedullary pin internal fixation technology.Traditional steel plate screw inner fixer relies on steel plate directly to contact the frictional force that surface of bone produces, and screw must pass offside cortex, thereby reaches powerful fixed requirement.Yet, with the damaged comminuted fracture of bone the time,, directly hindered the outer skeletonization of steel plate side form, thereby its use is restricted because steel plate is directly oppressed periosteum.And peel off periosteum and appear damage greatly, the requirement height that resets, fixing difficulty.If the comminuted fracture section lacks effectively stable longitudinal bracing simultaneously, the section displacement then easily takes place, fixing insecure, neither the fixed indication of intramedullary pin.
This utility model aims to provide a kind of outer skeletonization of steel plate side seam film that neither hindered, and can satisfy farthest effectively contact of section again, reaches powerful fixing, helps the apparatus of broken ends of fractured bone knitting.
This utility model is by steel plate, and trip bolt and nut three parts are formed, and its light plate transverse section is curved, to adapt to key cylinder surface shape, guarantee the key center of every piece of trip bolt axis alignment, and the fixedly line of force of trip bolt is intersected, to strengthen fixed fastness; The steel plate stringer is Z-shaped to be arranged with 5～10 screw holes, so that fracture obtains strong fixing; One circular groove is arranged on the screw hole of steel plate, nut is embedded wherein, to guarantee the level and smooth relatively of surface of steel plate; The front portion of trip bolt is sharp screw thread self-tapping type, can pass completely through single-side cortex, to guarantee fixed fastness to greatest extent; The mid portion of trip bolt obviously increases slightly, and front end is tapered, is with surface of bone to contact, and the rear end is the plane, contacts with the steel plate bottom surface during use; The rear portion of trip bolt is a screw thread, can spin with corresponding nut, and the screw hole of steel plate can be enclosed within the rear portion of trip bolt, and hold in the palm on the plane of trip bolt mid portion rear end the bottom surface of steel plate.Nut is common hexagon, and is terminal smooth, and can embed in the groove in steel plate screw hole.
Because this utility model has adopted fixedly single-skin drum matter screw technology of multiple spot, and the center pressure that fracture face bears is changed into eccentricity pressure, not only satisfy farthest effectively contact of section, help broken ends of fractured bone knitting, and the displacement of the control end face that can imitate.Steel plate is not directly oppressed periosteum, and the fixing point of vertical Z-shaped horizontal arc shooting as " anchor is fastened ", can guarantee its bone side fastness to greatest extent on the steel plate.Single-skin drum matter trip bolt adopts sharp screw thread self-tapping type, need not pass the offside cortical bone.Be applicable to the damaged situation of comminuted fracture companion's offside cortical bone.And can not emphasize to pulverize resetting fully of bone piece, avoid extensively peeling off periosteum and appeared damage.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a user mode profile of the present utility model, and Fig. 2 is a user mode vertical view of the present utility model, and Fig. 3 is the vertical view of steel plate, and Fig. 4 is the left view of steel plate, and Fig. 5 is a trip bolt.
Wherein 1 is steel plate, and 2 is nut, and 3 is trip bolt, and 4 is cortical bone, and 5 is screwdriver slot.
During use, conventional otch appears, and periosteum is peeled off outward and appeared fracture end.Can not emphasize resetting fully of syntripsis piece this moment, as long as the single-side cortex seriality well, insert steel plate (1) earlier in the fracture tension side, with thin bone drill head by each screw hole (6) trace of drilling on cortical bone (4) surface, needn't drill, take off steel plate then, hammer into trip bolt (3) with the common screwdriver of disinfectant by screwdriver slot (5), and guarantee each point-like contact surface contact really, on trip bolt, be inserted in steel plate (1), terminal common six-sided nut (2) is fixing with the hexagon socket head cap screw sleeve, successively close otch then, operation is finished.
Claims (7)
1. fracture single-skin drum matter multiple spot inner fixer is characterized in that: it is by steel plate, and trip bolt and nut three parts are formed, and wherein trip bolt can be divided into front portion, middle part and rear portion.
2. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 1, it is characterized in that: front portion wherein is sharp screw thread self-tapping type; The middle part obviously increases thick, and its front end is tapered, and the rear end is the plane, can contact with the steel plate bottom surface during use; There is screw thread at its rear portion.
3. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 1 is characterized in that: steel plate stringer wherein is Z-shaped to be arranged with 5～10 screw holes.
4. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 3, it is characterized in that: its steel plate transverse section is curved.
5. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 3 is characterized in that: a circular groove is arranged on the screw hole of its steel plate, nut is embedded wherein.
6. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 2, it is characterized in that: trip bolt afterbody wherein has a screwdriver slot.
7. fracture single-skin drum matter multiple spot inner fixer as claimed in claim 2 is characterized in that: its trip bolt increase thick middle part can make steel plate when secure and cortical bone leave the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216714 CN2467067Y (en) | 2001-02-27 | 2001-02-27 | Fracture mono cortex multi-point internal fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01216714 CN2467067Y (en) | 2001-02-27 | 2001-02-27 | Fracture mono cortex multi-point internal fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2467067Y true CN2467067Y (en) | 2001-12-26 |
Family
ID=33635080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01216714 Expired - Fee Related CN2467067Y (en) | 2001-02-27 | 2001-02-27 | Fracture mono cortex multi-point internal fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2467067Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939900A (en) * | 2015-07-24 | 2015-09-30 | 青岛大学附属医院 | Medical slight contact type plate screw system |
| CN105596074A (en) * | 2016-03-16 | 2016-05-25 | 青岛大学附属医院 | Medicinal shackle type inner ball joint micro-contact steel plate screw system |
-
2001
- 2001-02-27 CN CN 01216714 patent/CN2467067Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939900A (en) * | 2015-07-24 | 2015-09-30 | 青岛大学附属医院 | Medical slight contact type plate screw system |
| CN105596074A (en) * | 2016-03-16 | 2016-05-25 | 青岛大学附属医院 | Medicinal shackle type inner ball joint micro-contact steel plate screw system |
| CN105596074B (en) * | 2016-03-16 | 2017-11-14 | 青岛大学附属医院 | The micro- contact steel plate screw system of bulb joint in medical shackle-type |
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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 |