CN210697889U - Long bone external fixation device - Google Patents
Long bone external fixation device Download PDFInfo
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- CN210697889U CN210697889U CN201920792417.4U CN201920792417U CN210697889U CN 210697889 U CN210697889 U CN 210697889U CN 201920792417 U CN201920792417 U CN 201920792417U CN 210697889 U CN210697889 U CN 210697889U
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- fixed plate
- fixed
- needle
- fixing plate
- long bone
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Abstract
The utility model discloses a long bone external fixation device, including first fixed plate and second fixed plate, fixed needle and tight set bolt, it is a plurality of fixed needle is in by the centre gripping between first fixed plate and the second fixed plate, tight set bolt passes first fixed plate and second fixed plate will fixed needle is fixed to pressing from both sides, first fixed plate with one side that the second fixed plate is relative is equipped with the arch on the surface, protruding dislocation of each other on first fixed plate and the second fixed plate can keep fixed needle position invariant, interval between the adjacent arch equals. The position and the orientation of the fixing needle can be changed at will according to actual requirements. The utility model discloses simple structure, material are easily obtained, the preparation is convenient, can design the equipment by oneself according to actual demand.
Description
Technical Field
The utility model relates to the technical field of medical equipment. More specifically, the present invention relates to an external fixation device for long bones.
Background
In the scientific research to orthopedics fracture or bone defect model, can use bone external fixation device often, current external fixation device is mostly to domestic pet on the market, such as dog, cat, and the price is expensive, and the device specification is limited, can not satisfy the molding demand of scientific research animal such as the small-size animal of rabbit, big mouse.
In addition, in the design of the device, the fixing needle of the device is mostly positioned at a constant position of the fixing plate, the relative position and angle between the fixing needle and the long bone are not changeable, and the fixing requirements of the fracture or the bone defect under various conditions cannot be met. And each fixing needle is mostly placed in parallel, and can not form a staggered included angle with the long bone between each needle, and the needle is easy to be separated along the needle path after the time is long, so that the external fixation fails.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an external fixing device of long bone, simple structure, the fixed plate can the centre gripping be in the fixed needle of different positions and orientation, makes the fixed needle adapt to the fixed demand of long bone more in a flexible way.
In order to achieve the above object, the utility model provides a following technical scheme: a long bone external fixation device is characterized in that: including first fixed plate and second fixed plate, fixed needle and holding bolt, it is a plurality of fixed needle is by the centre gripping between first fixed plate and the second fixed plate, it will to press from both sides fixedly to hold the bolt tightly to pass first fixed plate and second fixed plate.
Further preferably, the first fixing plate and the second fixing plate are provided with protrusions on opposite side surfaces, the protrusions on the first fixing plate and the second fixing plate are staggered with each other, the position of the fixing pin can be kept constant, and the distance between the adjacent protrusions is equal.
Further preferably, the first fixing plate and the second fixing plate are rectangular plates, and have the same length, width and thickness.
It is further preferred that the protrusions are hemispherical.
Further preferably, the protrusion is made of the same material as the first fixing plate and the second fixing plate
Compared with the prior art, the utility model discloses an at least including following beneficial effect:
1. simple structure, easy assembly and disassembly during operation and time saving.
2. The material is easy to obtain, and the bolt and the fixing pin are common parts in the market and are easy to purchase.
3. The design of the device has great flexibility. All specification parameters of the fixing plate can be designed by self, the fixing plate is simple to manufacture, scientific research expenses are greatly saved, and the requirements of various animal scientific research and model making are met.
4. The fixed plate can the centre gripping be in the fixed needle of different positions and orientation, makes the fixed needle adapt to the fixed demand of long bone more in a flexible way.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the implementation of the present invention;
fig. 2 is a schematic view of the usage state of the present invention.
In the figure, 1-the first fixing plate, 2-the second fixing plate, 3-the fixing pin, 4-the fastening bolt, 5-the bulge, 6-the femur.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the utility model provides a long bone external fixation device, including first fixed plate 1 and second fixed plate 2, fixed needle 3 and tightly decide bolt 4, it is a plurality of fixed needle 3 is by the centre gripping between first fixed plate 1 and the second fixed plate 2, tightly decide bolt 4 and pass first fixed plate 1 and second fixed plate 2 will fixed needle 3 is fixed to pressing from both sides.
As an optimized solution of the above embodiment, the opposite side surfaces of the first fixing plate 1 and the second fixing plate 2 are provided with protrusions 5, the protrusions 5 on the first fixing plate 1 and the second fixing plate 2 are staggered with each other, so that the position of the fixing pin 3 can be kept constant, and the distance between the adjacent protrusions 5 is equal.
As an optimized solution of the above embodiment, the first fixing plate 1 and the second fixing plate 2 are rectangular plates, and have equal length, width and thickness.
As a preferred solution to the above embodiment, the protrusion 5 is a hemisphere.
As an optimized solution of the above embodiment, the material consistent with the material of the first fixing plate and the second fixing plate may be a steel plate, an alloy plate, a titanium plate, etc. with high hardness, but is not limited to the above.
The utility model provides a device concrete use does:
the long bone external fixing device as shown in fig. 2 comprises a first fixing plate 1, a second fixing plate 2 and 4 fixing needles 3, wherein the 4 fixing needles 3 with screw threads at the head part are pre-drilled into a femur 6, the needles are in a cross direction, and the first fixing plate 1 and the second fixing plate 2 clamp the 4 fixing needles 3 and are fixed by 3 fastening bolts.
During actual use, the fixing plate, the needle and the bolt with corresponding specifications can be selected according to the size of the body of the experimental animal.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (5)
1. A long bone external fixation device is characterized in that: including first fixed plate and second fixed plate, fixed needle and holding bolt, it is a plurality of fixed needle is by the centre gripping between first fixed plate and the second fixed plate, it will to press from both sides fixedly to hold the bolt tightly to pass first fixed plate and second fixed plate.
2. The external long bone fixation device of claim 1, wherein: the first fixing plate and the second fixing plate are provided with protrusions on the opposite side surfaces, the protrusions on the first fixing plate and the second fixing plate are staggered with each other, the position of the fixing needle can be kept constant, and the distance between every two adjacent protrusions is equal.
3. The external long bone fixation device of claim 1, wherein: the first fixing plate and the second fixing plate are rectangular plates and are equal in length, width and thickness.
4. The external long bone fixation device of claim 2, wherein: the protrusions are hemispherical.
5. The external long bone fixation device of claim 2, wherein: the material of the bulge is consistent with that of the first fixing plate and the second fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792417.4U CN210697889U (en) | 2019-05-29 | 2019-05-29 | Long bone external fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792417.4U CN210697889U (en) | 2019-05-29 | 2019-05-29 | Long bone external fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210697889U true CN210697889U (en) | 2020-06-09 |
Family
ID=70956203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920792417.4U Expired - Fee Related CN210697889U (en) | 2019-05-29 | 2019-05-29 | Long bone external fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210697889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112587273A (en) * | 2020-11-26 | 2021-04-02 | 杭州华迈医疗器械有限公司 | Animal thighbone operation positioning fixing frame |
-
2019
- 2019-05-29 CN CN201920792417.4U patent/CN210697889U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112587273A (en) * | 2020-11-26 | 2021-04-02 | 杭州华迈医疗器械有限公司 | Animal thighbone operation positioning fixing frame |
| CN112587273B (en) * | 2020-11-26 | 2022-08-09 | 杭州华迈医疗器械有限公司 | Animal femur operation positioning fixing frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200609 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |