CN106381431A - WE43 magnesium alloy medical bone plate containing Sr and Zn and preparation method of WE43 magnesium alloy medical bone plate - Google Patents
WE43 magnesium alloy medical bone plate containing Sr and Zn and preparation method of WE43 magnesium alloy medical bone plate Download PDFInfo
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- CN106381431A CN106381431A CN201610789412.7A CN201610789412A CN106381431A CN 106381431 A CN106381431 A CN 106381431A CN 201610789412 A CN201610789412 A CN 201610789412A CN 106381431 A CN106381431 A CN 106381431A
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- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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Abstract
The invention relates to a WE43 magnesium alloy medical bone plate containing Sr and Zn and a preparation method of the WE43 magnesium alloy medical bone plate. The WE43 magnesium alloy medical bone plate is characterized by being formed by, by mass, 4% of Y (yttrium), 3% of RE (rare earth), 0.5%-2% of Sr (strontium), 0.5%-2% of Zn (zinc), 0.5% of Zr (zirconium) and the balance Mg (magnesium) through the hot pressed sintering process. The manufacturing process of the WE43 magnesium alloy medical bone plate is characterized in that the hot pressed sintering process is adopted for forming, the medical tooth type bone plate is in an arc shape and comprises a bone plate base body, bone plate wings arranged on the two sides of the bone plate base body, B type screw holes formed in the bone plate wings, and A type screw holes formed in the two ends of the bone plate base body. Threads are formed in the B type screw holes and the A type screw holes correspondingly and are used in cooperation with corresponding fixing screws. The WE43 magnesium alloy medical bone plate is simple in structure, complex heating processing technologies are avoided, and by means of the reasonable component addition, better mechanical performance and corrosion resistance are achieved.
Description
Technical field
The present invention relates to medical bio embedded material field is and in particular to a kind of WE43 magnesium alloy medical containing Sr and Zn
Blade plate and preparation method thereof.
Background technology
In recent years, the application of biomedical material has caused material scholar, physician and commercial Application extensive
Concern.A lot of medical materials, such as high molecular polymer, pottery and metal material have been applied in the middle of biomedicine.
Metal material plays very important effect as a kind of biomedical material in sclerous tissueses' replacement and implantation field.Wherein,
Magnesium and magnesium alloy with its high specific strength, specific stiffness, the elastic modelling quantity of good biocompatibility and access expansion bone and close
Degree has very big application potential in the implantation of degradable bone, support and tissue.But, magnesium and magnesium alloy are as medical embedded
The fatal defects of material are that the intensity of pure magnesium is too low, and magnesium alloy human body environment's internal corrosion too fast thus leading to a large amount of hydrogen
Accumulation produces rimhole.Numerous studies show, magnesium and magnesium alloy, after implantation organism, explain speed and group because it is biological
Knit the speed of growth to mismatch, ultimately result in operative failure.
Series magnesium alloy containing aluminum has higher mechanical performance and corrosion resistance, but considers such alloy from health perspectives
Do not possess prolonged application in the advantage of human body.At present, relatively popular commercial magnesium alloy is aluminum-free system magnesium-rare earth, WE43
For wherein representing, its design of components is Mg-4%Y-3%RE (Nd, Gd) -0.5%Zr.Biotronik company has made
Clinical degradable blood vessel bracket, achieves good effect in zoopery, but WE43 as fixing hone lamella in people
The internal and external degradation rate of body is unsatisfactory.Therefore, a kind of comprehensive mechanical intensity and the more satisfactory magnesium of corrosive nature are sought
Alloy medical embedded material is most important.
Content of the invention
The present invention is directed to the deficiency of above-mentioned technology, and proposition is a kind of to have excellent mechanical performance and the magnesium conjunction of decay resistance
Golden Medical bone fracture plate.
The technical scheme is that：
A kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, is characterized in that, by the raw material of following mass percent
Using hot-pressing sintering technique molding,
Y (yttrium)：4%, RE (rare earth)：3%, Sr (strontium)：0.5%～2%, Zn (zinc)：0.5%～2%, Zr (zirconium)：
0.5%, balance of Mg (magnesium).
Preferably, described RE includes Nd element and/or Gd element；
Preferably, described RE includes Nd element and Gd element；
Preferably, the mass ratio of Nd element and Gd element is 1：1.
Preferably,
Described Y is Y powder, and Y Powder Particle Size is 75 μm, and purity is more than 99.5%；
Described RE is RE powder, and the granularity of described RE powder is 75 μm, and purity is more than 99.5%；
Described Sr is Sr powder, and the granularity of described Sr powder is 100 μm, and purity is more than 99.5%；
Described Zn is Zn powder, and the granularity of described Zn powder is 75 μm, and purity is more than 99.5%；
Described Zr is Zr powder, and the granularity of described Zr powder is 100 μm, and purity is more than 99.5%；
Described Mg is magnesium powder, and the granularity of Mg powder is 150 μm, and purity is more than 99.5%.
The present invention also provides a kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, it is characterized in that, including blade plate
Matrix, is arranged at the hone lamella wing of hone lamella matrix both sides, is arranged at the B class screw hole on the hone lamella wing, and is arranged at hone lamella matrix two
The A class screw hole at end；
Described B class screw hole and A class screw in the hole are equipped with screw thread, for coordinating with corresponding fixing screws；
Preferably, the cross section of the described hone lamella wing is arc-shaped；That is, the hone lamella wing is the groove of arc-shaped for cross section
Type, or other meet the shape of people's skeletal structure, to play more preferable nail effect.
Preferably, at least 2, the described hone lamella wing；Such as 2,3,4,5,6,7,8 etc., preferably 2
Individual, 4,6,8 are waited even number.
Preferably, the described hone lamella wing is uniformly distributed in hone lamella matrix side；
Preferably, described hone lamella matrix is additionally provided with least one B class screw hole；For with fixing screws by blade plate
It is fixed on skeleton.
Preferably, the B class screw hole on described hone lamella matrix is uniformly distributed, when can make fixing stress evenly, thus reaching
To more preferable nail effect.
Preferably, the aperture of A class screw hole is more than the aperture of B class screw hole；
Preferably, the described hone lamella wing is one or more of flute profile, semi-circular, semiellipse type.
Preferably, the angle that the described hone lamella wing is formed with blade plate matrix is 90 °～180 °, such as 90 °, 100 °, 110 °,
120 °, 150 °, 160 ° etc..
Preferably, the angle that the described hone lamella wing is formed with blade plate matrix is 100 °～150 °, such as 90 °, 100 °,
110 °, 120 °, 150 ° etc..
Preferably, the described hone lamella wing and the angle that blade plate matrix is formed and people's bone structure move towards consistent (the hone lamella wing with connect
Hone lamella dissects design according to people's bone, is arc-shaped)；So that it is fitted with people's bone, make fixation more stable, be more beneficial for the extensive of skeleton
Multiple.
Preferably, described blade plate be formed in one prepared.
Present invention also offers a kind of preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn, its feature
It is to comprise the following steps：
1. weigh raw material：Raw material is weighed according to above-mentioned mass percent；
2. batch mixing ball milling：Take Mg, Y, RE, Sr, Zn and Zr raw material that 1. step weighs, put in ball grinder after being dried and carry out
Ball milling mixing becomes compound；
3. room temperature is compressing：By step 2. described in compound be put in mould at room temperature and be pressed, obtain
To hone lamella blank；
4. hot pressed sintering：By step 3. in compressing hone lamella blank be positioned in the mould of same size specification, will
Mould is positioned in the hot-pressed sintering furnace of protective gas protection atmosphere and is sintered；Described protective gas is heat in prior art
Conventional protective gas, including but not limited to nitrogen in pressure sintering process.
5. heat treatment and cooling：Heat again after the medical hone lamella demoulding after 4. step sinters is taken out, insulation, cold afterwards
But the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn is obtained final product to room temperature.
Preferably,
Step 2. in, drum's speed of rotation 100-200r/min, Ball-milling Time be 8-12h；
Preferably, step 2. in, drum's speed of rotation 160r/min, Ball-milling Time be 10h.
Preferably,
Step 3. in, compressing pressure is 30-60MPa；
Preferably, step 3. in, compressing pressure is 40MPa.
Preferably, step 4. in, described protective gas be nitrogen.
Preferably,
Step 4. in, the condition of sintering is：First it is warming up to 180-220 DEG C, be incubated 0.5h；It is warmed up to 550-800 DEG C again, protect
Warm 1-3h, pressure controls all the time in 30-50MPa；
Step 4. in, the condition of sintering is：First it is warming up to 200 DEG C, be incubated 0.5h；It is warmed up to 650 DEG C again, be incubated 1h, pressure
Power controls all the time in 40MPa.
Preferably,
5. step is heat treatment and cooling：By the medical hone lamella demoulding taking-up post-heating after 4. step sinters to 250-
350 DEG C, be incubated 2-8h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn；
Preferably,
5. step is heat treatment and cooling：By the medical hone lamella demoulding taking-up post-heating after 4. step sinters to 300
DEG C, be incubated 5h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn.
Sr element and Zn element are human essential elementses, and Zn, in vivo so widely distributed in cell, is such as vision, taste
Feel and the elements needed for physical function such as olfactory sensation, participate in the metabolism of carbohydrate, protein and phosphorus, promote normal cell and cell
The function of film；The Sr that human body contains about 140mg and 99% is located in bone, and strontium salt has facilitation to the formation of bone, has literary composition
Offer and point out, Sr content 0.3%～2.5% Mg-Sr intravascular stent in intra-arterial 3 weeks no thrombosiss.Zn can effectively change
The mechanical property of kind magnesium alloy, and improve the corrosion resisting property of magnesium alloy to a certain extent, and Zn element and Zr element combinations, become
For powerful grain refiner；Sr has obvious thinning effect to the crystal grain of magnesium alloy, can also reduce shrinkage cavity quantity in alloy
And assemble shrinkage cavity, improve the intensity of blade plate, slow down corrosion rate, the addition of Sr also makes to create cenotype in magnesium alloy,
These stable cenotypes make alloy (magnesium alloy medical blade plate) have preferable creep resisting ability.
The beneficial effects of the present invention is：
(1) the WE43 magnesium alloy medical blade plate containing Sr and Zn of the present invention with the addition of human essential elementses Sr element and
Zn element, decreases the consumption of rare earth element simultaneously.
(2) the WE43 magnesium alloy medical blade plate containing Sr and Zn of the present invention, improves magnesium alloy medical blade plate
Mechanical property, and improve its corrosion resisting property, and there is preferable creep resisting ability.
(3) the WE43 magnesium alloy medical blade plate containing Sr and Zn of the present invention has excellent consistency and good
Mechanical performance, the density about 1.85g/cm of this WE43 magnesium alloy3, close to people's bone density (1.75g/cm3), elastic modelling quantity is about
45GPa, can eliminate " stress-shielding effect " between implant and people's bone, and (tensile strength is about 250MPa, bends with WE43
Take intensity and be about 155MPa) to compare, the tensile strength of this Medical bone fracture plate can reach 268MPa, and yield strength also brings up to
170MPa；And this WE43 magnesium alloy is during corrosion degradation, there is good decay resistance, the rate of dissolution of hone lamella and
People's symphysis speed is substantially matching, and in corrosion process, the Sr ion of release being capable of induction of bone growth.
(4) the laminating human body bone table shape of the WE43 magnesium alloy medical blade plate containing Sr and Zn of the present invention, screw hole divides
Cloth rationally, adheres to and growth beneficial to osseous tissue.
Brief description
Accompanying drawing 1 is the perspective view of the embodiment of the present invention；
Accompanying drawing 2 is the front elevational view of the embodiment of the present invention；
Accompanying drawing 3 is the three-dimensional left view of the embodiment of the present invention,
Wherein, 1 is blade plate matrix, and 2 is the flute profile hone lamella wing, and 3 is A class screw hole, and 4 is B class screw hole.
Specific embodiment
For a better understanding of the present invention, it is further elucidated with present disclosure with reference to embodiment, but the present invention
Content is not limited solely to the following examples, and embodiment is not construed as limiting the scope of the present invention.
A kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, adopts hot pressing to burn by the raw material of following mass percent
Knot technological forming,
Y (yttrium)：4%, RE (rare earth)：3%, Sr (strontium)：0.5%～2%, Zn (zinc)：0.5%～2%, Zr (zirconium)：
0.5%, balance of Mg (magnesium).
Preferably, described RE includes Nd element and/or Gd element；
Preferably, described RE includes Nd element and Gd element；
Preferably, the mass ratio of Nd element and Gd element is 1：1.
Preferably,
Described Y is Y powder, and Y Powder Particle Size is 75 μm, and purity is more than 99.5%；
Described RE is RE powder, and the granularity of described RE powder is 75 μm, and purity is more than 99.5%；
Described Sr is Sr powder, and the granularity of described Sr powder is 100 μm, and purity is more than 99.5%；
Described Zn is Zn powder, and the granularity of described Zn powder is 75 μm, and purity is more than 99.5%；
Described Zr is Zr powder, and the granularity of described Zr powder is 100 μm, and purity is more than 99.5%；
Described Mg is magnesium powder, and the granularity of Mg powder is 150 μm, and purity is more than 99.5%.
The present invention also provides a kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, as shown in Figure 1, 2, 3, including connecing
Hone lamella matrix 1, is arranged at the hone lamella wing 2 of hone lamella matrix both sides, is arranged at the B class screw hole 4 on the hone lamella wing, and is arranged at hone lamella
The A class screw hole 3 at matrix two ends；
It is equipped with screw thread, for coordinating with corresponding fixing screws in described B class screw hole 4 and A class screw hole 3；
Preferably, the cross section of the described hone lamella wing is arc-shaped；
Preferably, at least 2, the described hone lamella wing 2；
Preferably, the described hone lamella wing 2 is uniformly distributed in hone lamella matrix 1 side；
Preferably, described hone lamella matrix 1 is additionally provided with least one B class screw hole 4；
Preferably, the B class screw hole 4 on described hone lamella matrix is uniformly distributed；
Preferably, the aperture of A class screw hole 3 is more than the aperture of B class screw hole 4；
Preferably, the described hone lamella wing 2 is one or more of flute profile, semi-circular, semiellipse type.
Preferably, the angle that the described hone lamella wing 2 is formed with blade plate matrix 1 is 90 °～180 °；
Preferably, the angle that the described hone lamella wing 2 is formed with blade plate matrix 1 is 100 °～150 °；
Preferably, the described hone lamella wing 2 and the angle that blade plate matrix 1 is formed consistent with people's bone structure trend (the hone lamella wing and
Blade plate dissects design according to people's bone, is arc-shaped)；
Preferably, described blade plate be formed in one prepared.
The present invention use when, first by the wounded's knochenbruch and blade plate matrix 1 screw matching with A class screw hole 3
Fixing, then fix the hone lamella wing 2, finally fixed finally by the screw matching with B class screw hole 4, the depositing of the hone lamella wing 2
Make less blade plate have larger fixing radiation scope, making blade plate matrix 1 and the wounded's knochenbruch fixing more firm, reduce
The probability of operative failure.
The preparation method of the above-mentioned WE43 magnesium alloy medical blade plate containing Sr and Zn, comprises the following steps：
1. weigh raw material：Raw material is weighed according to above-mentioned mass percent；
2. batch mixing ball milling：Take Mg, Y, RE, Sr, Zn and Zr raw material that 1. step weighs, put in ball grinder after being dried and carry out
Ball milling mixing becomes compound；
3. room temperature is compressing：By step 2. described in compound be put in mould at room temperature and be pressed, obtain
To hone lamella blank；
4. hot pressed sintering：By step 3. in compressing hone lamella blank be positioned in the mould of same size specification, will
Mould is positioned in the hot-pressed sintering furnace of protective gas protection atmosphere and is sintered；
5. heat treatment and cooling：Heat again after the medical hone lamella demoulding after 4. step sinters is taken out, insulation, cold afterwards
But the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn is obtained final product to room temperature.
Preferably,
Step 2. in, drum's speed of rotation 100～200r/min, Ball-milling Time be 8-12h；
Preferably, step 2. in, drum's speed of rotation 160r/min, Ball-milling Time be 10h.
Preferably,
Step 3. in, compressing pressure is 30-60MPa；
Preferably, step 3. in, compressing pressure is 40MPa.
Preferably,
Step 4. in, described protective gas be nitrogen.
Preferably,
Step 4. in, the condition of sintering is：First it is warming up to 180-220 DEG C, be incubated 0.5h；It is warmed up to 550-800 DEG C again, protect
Warm 1-3h, pressure controls all the time in 30-50MPa；
Step 4. in, the condition of sintering is：First it is warming up to 200 DEG C, be incubated 0.5h；It is warmed up to 650 DEG C again, be incubated 1h, pressure
Power controls all the time in 40MPa.
Preferably,
5. step is heat treatment and cooling：By the medical hone lamella demoulding taking-up post-heating after 4. step sinters to 250-
350 DEG C, be incubated 2-8h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn；
Preferably,
5. step is heat treatment and cooling：By the medical hone lamella demoulding taking-up post-heating after 4. step sinters to 300
DEG C, be incubated 5h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn.
With reference to specific embodiment, the present invention will be described, but the present invention is not limited only to these examples.Embodiment 1
A kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, adopts hot pressing to burn by the raw material of following mass percent
Knot technological forming,
Y (Y powder, Y Powder Particle Size is 75 μm, and purity is more than 99.5%)：(RE powder, the granularity of RE powder is 75 μm, pure for 4%, RE
Degree is more than 99.5%)：3%, Sr (Sr powder, the granularity of described Sr powder is 100 μm, and purity is more than 99.5%)：0.5%, Zn
(Zn powder, the granularity of described Zn powder is 75 μm, and purity is more than 99.5%)：(Zr powder, the granularity of described Zr powder is for 0.5%, Zr
100 μm, purity is more than 99.5%)：0.5%, balance of Mg (magnesium powder, the granularity of Mg powder is 150 μm, purity 99.5% with
On).
In the present embodiment, the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn comprises the following steps：
1. weigh raw material：Raw material is weighed according to above-mentioned mass percent；
2. batch mixing ball milling：Take Mg, Y, RE, Sr, Zn and Zr raw material that 1. step weighs, put in ball grinder after being dried and carry out
Ball milling mixing becomes compound, wherein, drum's speed of rotation 160r/min, Ball-milling Time is 10h；
3. room temperature is compressing：By step 2. described in compound be put in mould at room temperature and be pressed, obtain
To hone lamella blank, wherein, compressing pressure is 40MPa.
4. hot pressed sintering：By step 3. in compressing hone lamella blank be positioned in the mould of same size specification, will
Mould is positioned in the hot-pressed sintering furnace that nitrogen protective atmosphere encloses and is sintered, and the condition of sintering is：First it is warming up to 200 DEG C, insulation
0.5h；It is warmed up to 650 DEG C again, is incubated 1h, pressure controls all the time in 40MPa.
5. heat treatment and cooling：Post-heating to 300 DEG C, insulation are taken out in the medical hone lamella demoulding after 4. step sinters
5h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn.
Embodiment 2
A kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, adopts hot pressing to burn by the raw material of following mass percent
Knot technological forming,
Y (yttrium)：4%, RE (rare earth)：3%, Sr (strontium)：1%, Zn (zinc)：1%, Zr (zirconium)：0.5%, balance of Mg
(magnesium).
Preparation method is with embodiment 1.
Embodiment 3
A kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, adopts hot pressing to burn by the raw material of following mass percent
Knot technological forming,
Y (yttrium)：4%, RE (rare earth)：3%, Sr (strontium)：2%, Zn (zinc)：2%, Zr (zirconium)：0.5%, balance of Mg
(magnesium).
Preparation method is with embodiment 1.
It is specifically shown in table 1 below.
The composition (weight/mass percentage composition wt%) of alloy used by table 1 embodiment
| Blade plate is numbered | Mg | Y | RE | Sr | Zn | Zr |
| Embodiment 1 | Surplus | 4 | 3 | 0.5 | 0.5 | 0.5 |
| Embodiment 2 | Surplus | 4 | 3 | 1 | 1 | 0.5 |
| Embodiment 3 | Surplus | 4 | 3 | 2 | 2 | 0.5 |
Decay resistance is tested：According to GB GB/T10125-1997, to the above-mentioned embodiment 1 made, embodiment 2 and reality
The Medical bone fracture plate applying example 3 carries out standard Neutral salt spray test, show that performance data is shown in Table 2.
The salt spray corrosion resistance of the medical flute profile hone lamella of table 2
| Hone lamella is numbered | Time/the h of corrosion occurs | Corrosion rate/mg cm-2·h-1 |
| Embodiment 1 | 8.8 | 0.023 |
| Embodiment 2 | 10 | 0.017 |
| Embodiment 3 | 7.6 | 0.031 |
From in table 2, when alloying component is in composition range given to this invention, its excellent anti-corrosion performance,
Wherein, the Mg-4%Y-3%RE-1%Sr-1%Zn-0.5%Zr Medical bone fracture plate decay resistance in embodiment 2 is best.
Claims (10)
1. a kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, is characterized in that, adopted by the raw material of following mass percent
Use hot-pressing sintering technique molding,
Y：4%, RE：3%, Sr：0.5%～2%, Zn：0.5%～2%, Zr：0.5%, balance of Mg.
2. the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 1, is characterized in that, described RE includes
Nd element and/or Gd element；
Preferably, described RE includes Nd element and Gd element；
Preferably, the mass ratio of Nd element and Gd element is 1：1.
3. the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 1 and 2, is characterized in that,
Described Y is Y powder, and Y Powder Particle Size is 75 μm, and purity is more than 99.5%；
Described RE is RE powder, and the granularity of described RE powder is 75 μm, and purity is more than 99.5%；
Described Sr is Sr powder, and the granularity of described Sr powder is 100 μm, and purity is more than 99.5%；
Described Zn is Zn powder, and the granularity of described Zn powder is 75 μm, and purity is more than 99.5%；
Described Zr is Zr powder, and the granularity of described Zr powder is 100 μm, and purity is more than 99.5%；
Described Mg is magnesium powder, and the granularity of Mg powder is 150 μm, and purity is more than 99.5%.
4. a kind of WE43 magnesium alloy medical blade plate containing Sr and Zn, is characterized in that, including blade plate matrix, be arranged at hone lamella
The hone lamella wing of matrix both sides, is arranged at the B class screw hole on the hone lamella wing, and the A class screw hole being arranged at hone lamella matrix two ends；
Described B class screw hole and A class screw in the hole are equipped with screw thread, for coordinating with corresponding fixing screws；
Preferably, the cross section of the described hone lamella wing is arc-shaped；
Preferably, at least 2, the described hone lamella wing；
Preferably, the described hone lamella wing is uniformly distributed in hone lamella matrix side；
Preferably, described hone lamella matrix is additionally provided with least one B class screw hole；
Preferably, the B class screw hole on described hone lamella matrix is uniformly distributed；
Preferably, the aperture of A class screw hole is more than the aperture of B class screw hole；
Preferably, the described hone lamella wing is one or more of flute profile, semi-circular, semiellipse type.
Preferably, the angle that the described hone lamella wing is formed with blade plate matrix is 90 °～180 °；
Preferably, the angle that the described hone lamella wing is formed with blade plate matrix is 100 °～150 °；
Preferably, the described hone lamella wing moves towards consistent with the angle that blade plate matrix is formed and people's bone structure；
Preferably, described blade plate be formed in one prepared.
5. a kind of preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn, is characterized in that, comprise the following steps：
1. weigh raw material：Raw material is weighed according to the arbitrary described mass percent of claim 1-3；
2. batch mixing ball milling：Take Mg, Y, RE, Sr, Zn and Zr raw material that 1. step weighs, put into after being dried and in ball grinder, carry out ball milling
It is mixed into compound；
3. room temperature is compressing：By step 2. described in compound be put in mould at room temperature and be pressed, obtain bone
Plate blank material；
4. hot pressed sintering：By step 3. in compressing hone lamella blank be positioned in the mould of same size specification, by mould
It is sintered in the hot-pressed sintering furnace being positioned over protective gas protection atmosphere；
5. heat treatment and cooling：Heat again after the medical hone lamella demoulding after 4. step sinters is taken out, insulation, after be cooled to
Room temperature obtains final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn.
6. the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 5, is characterized in that,
Step 2. in, drum's speed of rotation 100-200r/min, Ball-milling Time be 8-12h；
Preferably, step 2. in, drum's speed of rotation 160r/min, Ball-milling Time be 10h.
7. the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 5, is characterized in that,
Step 3. in, compressing pressure is 30-60MPa；
Preferably, step 3. in, compressing pressure is 40MPa.
8. the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 5, is characterized in that,
Step 4. in, described protective gas be nitrogen.
9. the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 5, is characterized in that,
Step 4. in, the condition of sintering is：First it is warming up to 180-220 DEG C, be incubated 0.5h；It is warmed up to 550-800 DEG C again, be incubated 1-3h,
Pressure controls all the time in 30-50MPa；
Step 4. in, the condition of sintering is：First it is warming up to 200 DEG C, be incubated 0.5h；It is warmed up to 650 DEG C again, is incubated 1h, pressure begins
Control eventually in 40MPa.
10. the preparation method of the WE43 magnesium alloy medical blade plate containing Sr and Zn according to claim 5, its feature
It is that 5. step is heat treatment and cooling：By the medical hone lamella demoulding taking-up post-heating after 4. step sinters to 250-350
DEG C, be incubated 2-8h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn；
Preferably,
5. step is heat treatment and cooling：Post-heating to 300 DEG C is taken out in the medical hone lamella demoulding after 4. step sinters, protects
Warm 5h, after be cooled to room temperature and obtain final product the WE43 magnesium alloy medical flute profile blade plate containing Sr and Zn.
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| CN108186097A (en) * | 2018-01-05 | 2018-06-22 | 济南大学 | Magnesium alloy bone plate and production method |
| CN109022984A (en) * | 2018-09-25 | 2018-12-18 | 中国科学院海洋研究所 | A kind of corrosion-proof rare earth magnesium alloy of the element containing Zn and preparation method thereof |
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| CN113182518A (en) * | 2021-04-02 | 2021-07-30 | 昆明理工大学 | Preparation method of medical biodegradable magnesium alloy stent material |
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| CN107496020A (en) * | 2017-09-29 | 2017-12-22 | 赵德伟 | A kind of degradable pure magnesium metal bone fracture plate fixed for Long bone fracture |
| CN107747014A (en) * | 2017-10-26 | 2018-03-02 | 东北大学 | One kind has high ductibility high-strength magnesium alloy and preparation method thereof |
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| CN109330674A (en) * | 2018-09-07 | 2019-02-15 | 西安卓恰医疗器械有限公司 | A kind of internal fixation system and its usage mode |
| CN109022984A (en) * | 2018-09-25 | 2018-12-18 | 中国科学院海洋研究所 | A kind of corrosion-proof rare earth magnesium alloy of the element containing Zn and preparation method thereof |
| CN109351980A (en) * | 2018-12-06 | 2019-02-19 | 南京理工大学 | The method that hot pressing sintering method prepares multiple dimensioned precipitation strength magnesium alloy materials |
| CN109351980B (en) * | 2018-12-06 | 2022-05-10 | 南京理工大学 | Method for preparing multi-scale precipitation strengthening magnesium alloy material by hot pressing sintering method |
| CN113122761A (en) * | 2021-03-09 | 2021-07-16 | 珠海中科先进技术研究院有限公司 | Degradable, tough and strong magnesium alloy and preparation method and application thereof |
| CN113182518A (en) * | 2021-04-02 | 2021-07-30 | 昆明理工大学 | Preparation method of medical biodegradable magnesium alloy stent material |
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