CN108246881A - A kind of designing scheme and preparation method of universal skull protective cap - Google Patents
A kind of designing scheme and preparation method of universal skull protective cap Download PDFInfo
- Publication number
- CN108246881A CN108246881A CN201711343630.9A CN201711343630A CN108246881A CN 108246881 A CN108246881 A CN 108246881A CN 201711343630 A CN201711343630 A CN 201711343630A CN 108246881 A CN108246881 A CN 108246881A
- Authority
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- China
- Prior art keywords
- skull
- cap body
- backplate
- preparation
- titanium alloy
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- Pending
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- 210000003625 skull Anatomy 0.000 title claims abstract description 41
- 230000001681 protective effect Effects 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 230000000750 progressive effect Effects 0.000 claims abstract description 15
- 229920000742 Cotton Polymers 0.000 claims abstract description 6
- 239000012620 biological material Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 6
- 230000006837 decompression Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002633 protecting effect Effects 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 abstract 2
- 230000002490 cerebral effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 208000014674 injury Diseases 0.000 description 5
- 206010019196 Head injury Diseases 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 241000219146 Gossypium Species 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 208000030886 Traumatic Brain injury Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 238000007428 craniotomy Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/005—Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2875—Skull or cranium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Mechanical Engineering (AREA)
- Neurosurgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Nursing (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of designing schemes and preparation method of universal skull protective cap.For the stand-by period that the several months is needed between Big bone flap decompression and cranioplasty; and skull of patient's defect does not have body protecting apparatus during this; the present invention designs and is prepared for three layers of cap body; cap body middle layer is equipped with the general backplate of prefabricated size and shape; the size and shape of cap body is divided into X according to the actual demand of user; M; the models such as L; respectively three-dimensional prototype is established in UG softwares; numerical control NC code is exported according to three-dimensional prototype, titanium alloy backplate is quickly then prepared using the progressive negative forming of no mould heat.The backplate is fastened on by spot welding on the metallic framework of cap body outer layer, the corresponding ventilative cotton of ectonexine filling and biomaterial.The present invention can cover most people's bones of cerebral cranium, play the role of the skull instead of skull defeci position, effectively prevent colliding the damage to skull, while preparation method has versatility and production, and compared to customed product, price is greatly reduced.
Description
Technical field
The present invention relates to the field of medical instrument technology, are specifically designed a kind of designing scheme of versatility skull protective cap, and
Preparation method is provided.
Background technology
Skull defeci caused by being needed caused by craniocerebral injury or other diseases reason after row large decompression craniotomy needs to wait for number
It is admitted to hospital again after month and carries out cranioplasty, patient's skull keeps damage condition in the meantime, is easily led to brain group by external force strike
Damage is knitted, position chanP when patient sleeps may all oppress brain tissue, cause to damage, there are great security risks.Simultaneously
Only skull protects equipment, is also all to be customized according to skull scan data, causes high cost, use general patient
It does not rise.And customed product needs a customization period, can cause the vacuum time band for lacking protection.
Metal CNC Incremental Forming is a kind of RP technique, is one by the procedure decomposition that shapes of complex three-dimensional sheet metal component
Gradually process layer by layer, every layer gradually shapes, and is finally configured to required part.The technology is widely used in engineering in medicine
In various curved surface sheet metal components processing and manufacturing, progressive molding technique produced using no modelling, and manufacture is of low cost.Therefore, it uses
This emerging technology processing of metal blank progressive molding, can not only substantially reduce the manufacture cost of part can also greatly shorten processing
Time, so as to substantially reduce the design cycle of product and design cost.
Therefore by progressive molding technology, a kind of being asked for the protective cap after head injury to solve appeal for versatility is developed
Topic.
Invention content
Goal of the invention：The purpose of the invention is to provide a kind of designing scheme of universal skull protective cap and preparation side
Method, this protective cap can not only prevent from colliding the damage to skull, while also have versatility and production, and price is substantially
It reduces, aeration and comfort are high.
Technical solution：In order to achieve the goal above, the technical solution used in the present invention is：
A kind of designing scheme and preparation method of universal skull protective cap, including three layers of cap body, in the cap body
Interbed is equipped with the general backplate of prefabricated size and shape, and backplate is prepared by titanium alloy material.First according on the market it is common not
With the shape data of the baseball cap of size, threedimensional model is established in UG softwares respectively, the fillet and boundary to model carry out excellent
Change, corresponding numerical control NC code is exported in the CAM bank of UG.Then titanium is closed with this code on Metal CNC Incremental Forming lathe
Golden material carries out, from the negative progressive molding of resistance heating, obtaining titanium alloy backplate, which is slightly less than cap body outer layer, radian, shape with
Cap body matches, while the backplate is fixed on the position of cap body and can cover most human skull and lacked including common skull
Position is damaged, plays the role of the skull instead of skull defeci position.Simultaneously in order to which user is allowed to feel more relieved, the titanium alloy material
It for medicine proprietary material, being safe from harm to body, and specific strength is high, density is small, use is more comfortable, while good permeability,
Conducive to air circulation, ensure the dry and comfortable of skull injury, prevent bacteria breed, maintain the steady of head injury location external pressure
It is fixed.In view of the actual conditions difference used, the present invention dimensionally has multiple models such as S, M, L, has good selection
Property and versatility.Then further, the backplate is fixedly connected with the cap body.By being fixedly connected, backplate is avoided to use
It moves in the process, causes secondary injury, while there is preferable fixation and compressive effect.Being completed again by spot-welding technology will
Told metal casing is fixed on above the metallic framework of outer layer, so set, fixation and the compressive effect of backplate are enhanced, and
Convenient for versatility.Later, cap body will be told and be divided into outer layer, backplate and internal layer, backplate is arranged among the internal layer and outer layer, together
When fill enough ventilative cottons and biomaterial, play certain cushioning effect, the backplate of hard avoided to directly rest on skull
Secondary injury, and acute saturating higher comfort and gas permeability are caused in the position of defect.Finally, the outer layer and internal layer are existed
Cap body bottom sutures, and backplate is arranged between told internal layer and outer layer, and is fixedly connected on outer layer, convenient for backplate position
It is fixed, avoid its occur it is mobile cause that user's is uncomfortable, while among titanium alloy backplate is completely disposed at cap body, also favorably
Put forward the durability of protective cap.
Further, it is described from resistance heating progressive molding technology, the anode of power supply is connected in tool heads, cathode is connected on folder
On tool, so as to constitute circuit, the temperature of optimum titanium alloy sheet forming is generated at tool heads processing stand, and in fixture
Felt pad is spread between workbench, irrelevant portions is prevented to be powered.Forming technique is born by progressive molding, by titanium alloy material plus
Work does not need to mold, reduces production cost and production life cycle into corresponding backplate, the mode of flexible manufacturing, Quick-forming.
Further, the metallic framework of the outer layer is prepared by the wire of vertical and horizontal, skeleton composition dome-type
Shape, outer layer sewed forming by denim on its metallic framework, enhances the wearability of outer layer.Titanium alloy backplate and outer layer
When being fixedly connected by spot-welding technology, it is only necessary to according to the node location that the transverse and longitudinal on metallic framework intersects, by titanium alloy backplate
It is fixed on the node of metallic framework by spot welding.So set, the position conducive to fixed backplate in cap body so that backplate exists
It is not easily shifted during use, while no matter the skull damaged part of user wherein, can be used this cap body, improve guarantor
The versatility of helmet.
Further, the size and shape of the backplate is designed according to the common baseball cap in market, shape and cap body outer layer phase
Seemingly, cap body outer layer is sized to be slightly smaller than, increases the aesthetic measure of cap body.Meanwhile the size of cap body can be according to the reality of user
Border situation is divided into multiple sizes such as S, M, L, and cap body is too big, does not have the technique effect of protection, and inconvenient to carry, and cap body is too
Greatly, user can feel uncomfortable, oppress that there may be secondary injuries.It is soft in three-dimensional according to the shapes and sizes of outer layer
The threedimensional model of product is established in part UG, is then suitably sized, while optimizes fillet and boundary.
Further, the cap body is equipped with rubber soft, on the one hand can expand the versatility of the present invention, in selected cap body ruler
On the basis of very little, its elasticity can also be finely adjusted by rubber soft, feel user according to the concrete condition of user
To comfortable；The wearing used is also convenient for, after cap body is tightened protection board can be bonded with skull defeci position tighter, protection effect
Fruit is more preferably.
Further, it tells design of the cap body according to baseball cap, is additionally provided with the brim of a hat.The setting of the brim of a hat can keep the sun off, together
Shi Gengjia is beautiful, convenient for winning.
Designing scheme and preparation method the present invention provides a kind of universal skull protective cap have the following advantages：
1st, this protective cap can not only prevent from colliding the damage to skull, while also have versatility and production, and
Price is greatly reduced, and aeration and comfort are high
2nd, compared with traditional skull protection device, the present invention has versatility first, using the backplate for covering full skull
Design, is adapted to the concrete condition of different users, greatly reduces cost and price in design；This normal plane exists simultaneously
The method that progressive molding is used in the forming process of metal casing, the method for flexible manufacturing save the mistake of die cost and design
Journey reduces cost and production cycle in preparation；This last root of hair is designed and is transformed according to baseball cap common on the market, is saved
The design process of outer layer has been gone, and has easily obtained and prepares, there is stronger versatility.
Description of the drawings
Fig. 1 is the cap body overall structure diagram of protective cap according to the present invention
Fig. 2 is the cap body cross-sectional view of protective cap according to the present invention
Fig. 3 is the preparation flow schematic diagram of protective cap according to the present invention
Fig. 4 is according to the present invention from resistance electrical heating progressive molding schematic device
In figure：
1 cap body, 2 outer layer, 3 titanium alloy backplate, 4 internal layer, 5 rubber soft, 6 metallic framework, 7 air hole, 8 solder joint, 9 the brim of a hat
10 workbench, 11 felt pad, 12 fixture, 13 titanium alloy plate, 14 tool heads, 15 cathode, 16 anode, 17 power supply
Specific embodiment
The present invention will be described in more detail below in conjunction with the accompanying drawings.
Present example is as follows, as shown in Figure 1, a kind of designing scheme and preparation method of universal skull protective cap, packet
Include following steps：
1) backplate of prefabricated size and shape that design cap body is internally provided with, the backplate are prepared by titanium alloy material, institute
The size and shape for stating backplate is divided into the Multiple Types such as X, M, L according to the actual demand of user, collects the size and shape of cap body
Shape parameter.
2) by obtained data, the three-dimensional prototype of cap body is established in UG softwares.
3) fillet of three-dimensional prototype and boundary are optimized.
4) region that will need metal rapid shaping exports digital control processing NC codes by the cam modules in UG.
5) according to the numerical control code of gained, titanium alloy plate is carried out to bear progressive molding from resistance electrical heating, obtains metal shield
Plate.
6) titanium alloy backplate is fixed on by solder joint on the metallic framework of cap body.
7) backplate is arranged among internal layer and outer layer, fills ventilative cotton, biomaterial and software.
On the basis of examples detailed above, the present invention another applies in example, as shown in Fig. 2, the cap body 1 is divided for outer layer 2, shield
Plate 3 and internal layer 4, backplate 3 are arranged among told internal layer 4 and outer layer 2, and backplate 3 passes through solder joint 8 and the metallic framework of cap body outer layer
6 are fixedly connected.So set, metal casing 3 is arranged between the internal layer 4 of cap body and outer layer 2, internal layer 4 plays certain delay
Punching acts on, and the backplate 3 of hard is avoided to directly rest on the position of skull defeci, causes secondary injury.The inside of the cap body 1 is set
There is rubber soft 5, on the one hand can expand the versatility of the present invention, it, can also be according to user on the basis of cap body size
Concrete condition, its elasticity is finely adjusted by rubber soft 5, user is made to feel comfortable；The wearing used is also convenient for, it will
It is tighter that after tightening protection board can be bonded cap body with skull defeci position, and protecting effect is more preferably.
On the basis of examples detailed above, the present invention another applies in example, as shown in figure 3, first according to the common stick of design
The shape data of ball cap, customization are slightly less than outer layer, radian the shape backplate 3 consistent with outer layer, and the backplate is fixed on cap body
Position can cover most human skull and include common skull defeci position, play the skull instead of skull defeci position
Effect.In view of the actual conditions difference used, the present invention dimensionally has multiple models such as S, M, L, has good choosing
Selecting property and versatility, while the aesthetic measure of cap body 1 is increased, reduce difficulty prepared by entire cap body.The gold of the outer layer 2
Belong to skeleton 6 to be prepared by the wire of vertical and horizontal, skeleton 6 forms the shape of dome-type, and outer layer 2 is by denim in its gold
Belong to forming of sewing on skeleton, enhance the wearability of outer layer 2.The titanium alloy backplate 3 is fixed with outer layer 2 by spot-welding technology to be connected
When connecing, it is only necessary to according to the node location that the transverse and longitudinal on metallic framework 6 intersects, titanium alloy backplate 3 are fixed on gold by spot welding
On the node for belonging to skeleton, so set, titanium alloy backplate 3 is easy for installation, conducive to position of the fixed backplate 3 in cap body 1 so that
Backplate 3 is not easily shifted in use, while no matter user skull damaged part wherein, this cap body 1 can be used,
Improve the versatility of protective cap.The cap body 1 is additionally provided with the brim of a hat 9 and air hole 7, the brim of a hat 9 is set according to the design of baseball cap
Putting can keep the sun off, while more beautiful, convenient for winning.
On the basis of examples detailed above, the present invention another applies in example, as shown in figure 4, the titanium alloy backplate 3 passes through certainly
Resistance electrical heating progressive molding is prepared.The anode 15 of power supply is connected in tool heads 14, cathode 16 is connected on fixture 12,
So as to constitute power circuit, generated at 14 processing stand of tool heads suitable for the temperature most preferably shaped of titanium alloy plate 13, and
And felt pad 11 is spread between fixture 12 and workbench 10, irrelevant portions is prevented to be powered.According to corresponding to the NC codes
Digital controlled tracing, the gradually processing of tool heads 14 from level to level, every layer gradually shapes, and forming tool head often covers one layer, metal blank
The process of last layer is completed in just and then one layer of deformation, and forming tool head will decline one layer and be processed, until completing complete
The forming in portion generates metal casing 3.Forming technique is born by progressive molding, the mode of flexible manufacturing, Quick-forming, no
Mold is needed, reduces production cost and production life cycle.
Claims (6)
1. a kind of designing scheme and preparation method of universal skull protective cap, which is characterized in that including following steps：
1) backplate of prefabricated size and shape that design cap body is internally provided with, the backplate are prepared by titanium alloy material, the shield
The size and shape of plate is divided into the Multiple Types such as X, M, L according to the actual demand of user, and thickness is according to calculating and titanium alloy ratio
The characteristics of intensity is high can use smaller value, collect the size and shape parameter of cap body.
2) by obtained data, the three-dimensional prototype of cap body is established in UG softwares.
3) fillet of three-dimensional prototype and boundary are optimized.
4) region that will need metal rapid shaping exports digital control processing NC codes by the cam modules in UG.
5) according to the numerical control code of gained, titanium alloy plate is carried out to bear progressive molding from resistance electrical heating, obtains metal casing.
6) titanium alloy backplate is fixed on by solder joint on the metallic framework of cap body.
7) backplate is arranged among internal layer and outer layer, fills ventilative cotton, biomaterial and software.
2. the designing scheme and preparation method of a kind of universal skull protective cap according to claim 1, which is characterized in that
The protective cap is transformed by standard baseball cap, is divided into multiple models according to customer parameter, has production and versatility.
3. the designing scheme and preparation method of a kind of universal skull protective cap according to claim 1, which is characterized in that
Cap body internal layer is made of ventilative cotton and biomaterial, and ventilative cotton and biomaterial have preferable gas permeability and comfort.
4. the designing scheme and preparation method of a kind of universal skull protective cap according to claim 1, which is characterized in that
The cap body internal layer lower end is equipped with rubber soft, and rubber soft increases comfort and prevents cap body from coming off.
5. the designing scheme and preparation method of a kind of universal skull protective cap according to claim 1, which is characterized in that
Told backplate is prepared by medical use titanium alloy material, and titanium alloy material passes through progressive molding technology rapid shaping.
6. the designing scheme and preparation method of a kind of universal skull protective cap according to claim 1, which is characterized in that
It is described to bear progressive molding technology from resistance electrical heating, the anode of power supply is connected in tool heads, cathode is connected on fixture, so as to structure
Into circuit, generated at tool heads processing stand suitable for the temperature of titanium alloy sheet forming, and between fixture and workbench
Felt pad is spread, irrelevant portions is prevented to be powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711343630.9A CN108246881A (en) | 2017-12-11 | 2017-12-11 | A kind of designing scheme and preparation method of universal skull protective cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711343630.9A CN108246881A (en) | 2017-12-11 | 2017-12-11 | A kind of designing scheme and preparation method of universal skull protective cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108246881A true CN108246881A (en) | 2018-07-06 |
Family
ID=62723089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711343630.9A Pending CN108246881A (en) | 2017-12-11 | 2017-12-11 | A kind of designing scheme and preparation method of universal skull protective cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN108246881A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109349719A (en) * | 2018-11-26 | 2019-02-19 | 易民 | A kind of head protector worn suitable for head injury person |
| CN110101488A (en) * | 2019-06-13 | 2019-08-09 | 山东大学 | A kind of macro micro- integrated progressive molding preparation method of implant and the implant of acquisition |
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| GB191511803A (en) * | 1915-08-16 | 1916-08-10 | John Leopold Brodie | An Improved Helmet or Head Shield. |
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2017
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| CN104432908A (en) * | 2013-09-13 | 2015-03-25 | 天津市艾迪聚氨酯工业有限公司 | Construction helmet shell |
| US20150189938A1 (en) * | 2014-01-08 | 2015-07-09 | Centrex Plastics, LLC | Configurable headwear assembly |
| CN105710205A (en) * | 2016-04-06 | 2016-06-29 | 北京航空航天大学 | Self-blocked heating incremental forming device for whole plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110101488B (en) * | 2019-06-13 | 2021-11-09 | 山东大学 | Macro-micro integrated incremental forming preparation method for implant and implant obtained by macro-micro integrated incremental forming preparation method |
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