CN203677226U - Self-releasing internal fracture fixation system - Google Patents
Self-releasing internal fracture fixation system Download PDFInfo
- Publication number
- CN203677226U CN203677226U CN201320808703.8U CN201320808703U CN203677226U CN 203677226 U CN203677226 U CN 203677226U CN 201320808703 U CN201320808703 U CN 201320808703U CN 203677226 U CN203677226 U CN 203677226U
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- China
- Prior art keywords
- fixation system
- nail
- nail cover
- self
- bone
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Abstract
The utility model belongs to the field of medical instrument and equipment, relates to a main instrument used during fracture surgery, and particularly to a self-releasing internal fracture fixation system. The self-releasing internal fracture fixation system comprises a bone plate, wherein at least two screw holes are formed to penetrate through the bone plate; and a bone nail is internally connected with each screw hole. The self-releasing internal fracture fixation system is characterized in that a cushion layer is arranged on the bone plate; a nail cover is connected onto the nail body of the bone nail; the cushion layer is an implantable, absorbable and degradable biomaterial cushion layer; and the nail cover is also an implantable, absorbable and degradable biomaterial nail cover. The self-releasing internal fracture fixation system provided by the utility model is simple in structure and smart in conception, and can effectively avoid the problems of stress shielding and thermal transfer stimulus in the existing internal fixation system; and the self-releasing internal fracture fixation system is convenient to disassemble after fracture healing.
Description
Technical field
This utility model belongs to medical apparatus and instruments field, relates to a kind of main apparatus of use in the time carrying out fracture operation, specifically a kind of from the type fracture internal fixation system of loosening.
Background technology
In the time carrying out fracture operation, the internal fixation system of metal bone fracture plate and metal bone nail composition, strong interior fixing is provided can to patient's fracture site, it is current widely used internal fixation system clinically, but in long-term use, find that this internal fixation system also exists a lot of defects, mainly: one, blade plate and bone nail are metallic article, carry out interior when fixing, blade plate and bone nail all directly contact with bone and surrounding tissue, have larger thermal stimulus; Two, blade plate causes shunting to skeleton physiology stress, causes bone strength reduction, healing delay, and blade plate can cause stress shielding; Three, blade plate and bone nail embed in bone and surrounding tissue, after union of fracture, are unfavorable for the dismounting of blade plate and bone nail.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of simple in structure, ingenious, rational from the type fracture internal fixation system of loosening, this fixed system can gradually eliminate stress voluntarily and block and remove quickly and easily after union of fracture.
The technical scheme providing according to this utility model: a kind of from the type fracture internal fixation system of loosening, comprise blade plate, on described blade plate, run through and be provided with at least two screw holes, in each described screw hole, be all connected with bone nail, it is characterized in that: described blade plate is provided with bed course, bone nail in use surface is connected with nail cover, and described bed course is implantable degraded and absorbed biomaterial bed course, and described nail cover is implantable degraded and absorbed biomaterial nail cover.
As further improvement of the utility model, described bed course is by the whole or local parcel of blade plate.
As further improvement of the utility model, described nail cover outer surface is provided with protruding texture.
As further improvement of the utility model, described nail cover bottom outer circumference surface is uniform offers the bar-shaped trough that several extend vertically.
As further improvement of the utility model, described nail cover outer surface is provided with protruding texture, and offers the bar-shaped trough that several extend vertically nail cover bottom outer circumference surface is uniform simultaneously.
Compared with prior art, advantage is this utility model: this utility model product structure is simple, be skillfully constructed, and can effectively avoid existing internal fixation system problems, the problem includes: stress shielding and temperature transfer stimulate problem, and this product is removed and facilitated after union of fracture simultaneously.
Accompanying drawing explanation
Fig. 1,2 is structural representation of the present utility model.
Fig. 3,4,5 structural representations for nail cover.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Fig. 1 ~ 5, comprise blade plate 1, bone nail 2, nail cover 3, bed course 4, protruding texture 5, bar-shaped trough 6, bone 7 etc.
As shown in Fig. 1 ~ 5, this utility model is a kind of from the type fracture internal fixation system of loosening, comprise blade plate 1, on described blade plate 1, run through and be provided with at least two screw holes, in each described screw hole, be all connected with bone nail 2, described blade plate 1 is provided with bed course 4, and bone nail 2 in use surface is connected with nail cover 3, described bed course 4 is implantable degraded and absorbed biomaterial bed course, and described nail cover 3 is implantable degraded and absorbed biomaterial nail cover.
As shown in Figure 1 and Figure 2, described bed course 4 is by the whole or local parcel of blade plate 1, and blade plate 1 surface shown in Fig. 1 is all enveloped by bed course 4, and blade plate 1 lower surface shown in Fig. 2 is provided with one deck bed course 4.
As shown in Figure 4, described nail overlaps 3 outer surfaces and is provided with protruding texture 5, and this projection texture 5 can be protruding aperture or the decorative pattern on outstanding nail cover 3 surfaces, so that increase frictional force.
As shown in Figure 3, described nail overlaps that 3 bottom outer circumference surfaces are uniform offers the bar-shaped trough 6 that several extend vertically, by bar-shaped trough 6 to produce expansion swelling effect.
As shown in Figure 5, described nail overlaps 3 outer surfaces and is provided with protruding texture 5, and simultaneously offers the bar-shaped trough 6 that several extend vertically nail cover 3 bottom outer circumference surfaces are uniform.
This utility model product structure is simple, be skillfully constructed, by 4 layers of the bed courses be made up of implantable degraded and absorbed biomaterial are set on existing blade plate 1 surface, and the nail cover 3 of being made up of implantable degraded and absorbed biomaterial is set in bone nail rivet nut, form new internal fixation system; This internal fixation system has following characteristics: the intensity both with peg, plate, can meet clinical interior fixing needs, again can be by the degraded and absorbed gradually of implantable degraded and absorbed biomaterial, progressively loosening bone nail 2 and blade plate 1, thereby reach the object of absent-mindedness internal fixation system to eliminate stress gradually and to block, make union of fracture more firm; By bed course and nail cover isolation blade plate 1, bone nail 2 and bone and surrounding tissue, reducing temperature transfer stimulates, bed course 4 and nail cover 3 after by human body degraded and absorbed, can make bone nail 2 and blade plate 1 be difficult for embedding bone and surrounding tissue, are conducive to the dismounting of bone nail 2 and blade plate 1; The nail cover 3 of making due to implantable degraded and absorbed biomaterial and the intensity of bed course 4 are conventionally lower, can provide with the soft of tissue such as periosteum and contact, the blood that is conducive to fracture site supplies, simultaneously above-mentioned nail cover 3 and bed course 4 have certain elasticity, can make fracture end produce trickle activity stimulates, and promotes the formation of osteoblastic growth and callus.
As shown in Figure 1 and Figure 2, this product in use, first punches respectively in the both sides at bone fracture position, then nail cover 3 is inserted in the hole of accomplishing fluently, and blade plate 1 is fixed on bone 7 with bone nail 2, specifically bone nail 2 revolves and establishes in nail cover 3, and nail cover 3 is tensioned in the hole of accomplishing fluently.
Claims (5)
1. the type fracture internal fixation system of certainly loosening, comprise blade plate (1), on described blade plate (1), run through and be provided with at least two screw holes, in each described screw hole, be all connected with bone nail (2), it is characterized in that: described blade plate (1) is provided with bed course (4), bone nail (2) in use surface is connected with nail cover (3), and described bed course (4) is implantable degraded and absorbed biomaterial bed course, and described nail cover (3) is implantable degraded and absorbed biomaterial nail cover.
2. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: described bed course (4) is by the whole or local parcel of blade plate (1).
3. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: described nail cover (3) outer surface is provided with protruding texture (5).
4. as claimed in claim 1 from the type fracture internal fixation system of loosening, it is characterized in that: uniform several bar-shaped troughs extending vertically (6) that offers of described nail cover (3) bottom outer circumference surface.
5. the type fracture internal fixation system of certainly loosening as claimed in claim 1, is characterized in that: described nail cover (3) outer surface is provided with protruding texture (5), and while uniform several bar-shaped troughs extending vertically (6) that offers of outer circumference surface bottom nail cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808703.8U CN203677226U (en) | 2013-12-10 | 2013-12-10 | Self-releasing internal fracture fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320808703.8U CN203677226U (en) | 2013-12-10 | 2013-12-10 | Self-releasing internal fracture fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203677226U true CN203677226U (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320808703.8U Expired - Fee Related CN203677226U (en) | 2013-12-10 | 2013-12-10 | Self-releasing internal fracture fixation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203677226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654928A (en) * | 2013-12-10 | 2014-03-26 | 徐斌 | Self-releasing-type internal fracture fixation system |
| WO2021196163A1 (en) * | 2020-04-03 | 2021-10-07 | 董谢平 | Pedicle screw rod system capable of gradually changing from rigid fixation to non-rigid fixation |
-
2013
- 2013-12-10 CN CN201320808703.8U patent/CN203677226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654928A (en) * | 2013-12-10 | 2014-03-26 | 徐斌 | Self-releasing-type internal fracture fixation system |
| WO2021196163A1 (en) * | 2020-04-03 | 2021-10-07 | 董谢平 | Pedicle screw rod system capable of gradually changing from rigid fixation to non-rigid fixation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191210 |