CN101496734A - Non-contact dynamic stress valve type bone plate - Google Patents
Non-contact dynamic stress valve type bone plate Download PDFInfo
- Publication number
- CN101496734A CN101496734A CNA2008101398010A CN200810139801A CN101496734A CN 101496734 A CN101496734 A CN 101496734A CN A2008101398010 A CNA2008101398010 A CN A2008101398010A CN 200810139801 A CN200810139801 A CN 200810139801A CN 101496734 A CN101496734 A CN 101496734A
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- dynamic stress
- fracture
- valve type
- stress valve
- bone plate
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Abstract
The invention provides a non-contact dynamic stress valve bone fracture plate. The plate is fixed on a catagmatic part through novel bone screws with echelon screw threads to make 0.3 to 0.5 mm of distance reserved between the bone fracture plate and the bone; the non-contact fixing mode is achieved, so the periosteum cannot be peeled off and also cannot become necrosis caused by pressing, thereby ensuring that the catagmatic part has good blood supply, and promoting the healing of the catagmatic part. The catagmatic end generates stress by the movement of a dynamic stress valve, so that the fracture fixing bone can also be stimulated by appropriate stress to accelerate healing and reduce complication. The plate has the advantages of shortening the healing time and achieving biological fixation.
Description
Technical field
The invention belongs to the orthopedic field of clinical medicine Orthopeadic Surgery, be used to fracture and orthopedic fixing and promotion union of fracture.
Background technology
We know, under the AO guide of theory, the blade plate that present orthopedic is used for the treatment of fracture mostly is strong pressurization internal fixation, union of fracture is of poor quality, complication is many, be because (1) present blade plate is strong pressurization internal fixation when treatment is fractured or be orthopedic, be close on the surface of skeleton, cause the periosteum pressurized necrosis of supply fracture end blood fortune, made originally and suffered further destruction, thereby cause above complication and healing time to prolong even cause bone does not connect because of the blood fortune of the destructive fracture end of fracture; (2) stress shielding that causes of strong internal fixation makes fracture end lose the needed sinusoidal wave stress stimulation of osteogenesis, and common clinically delayed union even bone does not connect connect; Both made healing, the time also prolongs greatly, with the traditional therapy comparison time lengthening 30% of China.
Summary of the invention
Technical problem to be solved by this invention is in order to overcome above-mentioned the deficiencies in the prior art, to provide a kind of blood fortune that neither influences fracture end can avoid the non-contact dynamic stress valve type bone plate of stress shielding again.
The technical scheme that the present invention solves the problems of the technologies described above employing is: be the blade plate that adopts the fabulous titanium alloy of biocompatibility of low-elasticity-modulus amount, high antifatigue to make, which is provided with the locking nail hole, pressurization, locking nail hole, dynamic stress valve, dynamically Control Shaft.It is characterized in that (1) adopt dynamic stress valve type bone plate, utilize the dynamic stress valve motion to make fracture end produce stress, make skeleton after the fracture fixation still can be by suitable stress stimulation healing acceleration and minimizing complication; Shorten healing time, reach and fix biology.(2) blade plate and screw adopt the fabulous titanium alloy manufacturing of biocompatibility of low elastic modulus, high antifatigue, has better elastic, can when muscle contraction or motion, produce elastic deformation and make fracture have corresponding motion to produce sinusoidal wave stress, stimulate union of fracture to accelerate.(3) screw is made lock-out state, make reducing-pitch thread, blade plate is fixed but the surface of bone of get along well contacts, make to have the distance of 0.3mm between blade plate and the skeleton to 0.5mm in nail tail and the part that enters bone.By the noncontact fixed form, make periosteum neither peel off and can not be oppressed necrosis, thereby make fracture end have good blood fortune, promote union of fracture.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is that noncontact dynamic stress valve type bone plate structure master looks sketch map.
Fig. 2 is a noncontact dynamic stress valve type bone plate structure schematic top plan view.
Fig. 3 is that novel bone screw is looked sketch map to the master that non-contact dynamic stress valve type bone plate is fixed on the bone.
To be novel bone screw be fixed to schematic top plan view on the bone to non-contact dynamic stress valve type bone plate to Fig. 4.
Among the figure 1, the locking nail hole; 2, pressurization, locking nail hole; 3, dynamic stress valve; 4, dynamic Control Shaft; 5, the gap (0.3～0.5mm) of blade plate and bone surface.
Concrete enforcement
The non-contact dynamic stress valve type bone plate structure is fixed on the different parts of fracture, makes fracture end produce stress by the dynamic stress valve motion, make skeleton after the fracture fixation still can be by suitable stress stimulation healing acceleration and minimizing complication; Shorten healing time, reach and fix biology.Non-contact dynamic stress valve type bone plate is to be fixed on the position of fracture by novel bone screw, thereby it is fixed to reach noncontact.
Fig. 1, Fig. 2, Fig. 3, embodiment illustrated in fig. 4 in, non-contact dynamic stress valve type bone plate is fixed on the position of fracture by the novel bone screw with reducing-pitch thread, shown in Fig. 3,4: make to have the distance of 0.3mm between blade plate and the skeleton to 0.5mm, by the noncontact fixed form, make periosteum neither peel off and can not be oppressed necrosis, thereby make fracture end have good blood fortune, promote union of fracture.The motion at 3 places that promptly indicated among the figure by dynamic stress valve makes fracture end produce stress, make skeleton after the fracture fixation still can be by suitable stress stimulation healing acceleration and minimizing complication, the shortening healing time reaches and fixes biology.
Claims (2)
1, non-contact dynamic stress valve type bone plate which is provided with locking nail hole, adjustment locking nail hole, dynamic stress valve, dynamic Control Shaft, it is characterized in that (1) employing dynamic stress valve type bone plate, utilize dynamic stress valve motion to make fracture end produce stress, make skeleton after the fracture fixation still can be by suitable stress stimulation healing acceleration and minimizing complication; Shorten healing time, reach and fix biology; (2) reach the noncontact fixed form with fracture fixation by the novel bone screw with reducing-pitch thread, periosteum is not peeled off not pressurized, makes fracture end have good blood fortune, promotes union of fracture.
2, according to claim 1 (1) non-contact dynamic stress valve type bone plate which is provided with locking nail hole, adjustment locking nail hole, dynamic stress valve, dynamic Control Shaft; (2) this steel plate feature: non-contact dynamic stress valve type bone plate; (3) reducing-pitch thread by novel bone screw reaches noncontact and fixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101398010A CN101496734A (en) | 2008-09-10 | 2008-09-10 | Non-contact dynamic stress valve type bone plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101398010A CN101496734A (en) | 2008-09-10 | 2008-09-10 | Non-contact dynamic stress valve type bone plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101496734A true CN101496734A (en) | 2009-08-05 |
Family
ID=40944151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101398010A Pending CN101496734A (en) | 2008-09-10 | 2008-09-10 | Non-contact dynamic stress valve type bone plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101496734A (en) |
-
2008
- 2008-09-10 CN CNA2008101398010A patent/CN101496734A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |