CN107334544A - A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique - Google Patents
A kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique Download PDFInfo
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- CN107334544A CN107334544A CN201710076735.6A CN201710076735A CN107334544A CN 107334544 A CN107334544 A CN 107334544A CN 201710076735 A CN201710076735 A CN 201710076735A CN 107334544 A CN107334544 A CN 107334544A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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Abstract
The invention discloses a kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique.It includes following three step：(1) the expander bottom surface of extended region is intended in the body surface three-dimensional data obtained according to laser body surface scanning technique, accordingly design fitting；(2) finite element analysis software is utilized, understands the stressing conditions of skin everywhere at the end of expansion, accordingly the shape of adjustment expansion capsule, part too high to skin in compression carries out curvature adjustment, designs the expansion capsule to skin pressure relative distribution；(3) aqueduct and Injection valve are added on the basis of capsule is expanded, and customization expander is printed using 3D printing technique.The stressing conditions of skin everywhere at the end of the expander method for customizing of the present invention is expanded using finite element analysis software understanding, for the local progress curvature adjustment that skin in compression is too high, design the expansion capsule for meeting biomethanics, be advantageous to reduce the risk of skin ulceration in process of expansion, improve efficiency.
Description
Technical field
The invention belongs to shaping cosmetic surgery field, is related to a kind of method for customizing expander, more particularly to a kind of application
Laser scanning, finite element analysis and 3D printing technique customization meet the method for the expander of biomethanics.
Background technology
Skin soft-tissue expansion abbreviation tissue expansion, refer to skin tissue expander (abbreviation expander) being implanted into
Under normal skin soft tissue, by Injection valve to expansion intracapsular injection liquid, to increase expander capacity, make it to surface
Skin soft tissue produces pressure, by effect of the expanding mechanism to part, makes tissue and epidermal cell divides and propagation and cell
Gap widens, so as to increase skin area, the reparation material that acquisition skin color, quality, structure, hair Jun Yushou areas match
Material.Skin expansion passes through the development of 40 years, has been widely used in the reparation of the pathological tissues at each position of whole body at present
Rebuild with organ.
Clinically conventional expander is mainly made up of expansion capsule, Injection valve and aqueduct.It is expander to expand capsule
Main part, different specification and model can be divided into according to its amount of capacity and form difference, common are square, kidney shape and circle
Shape.
Existing expander has the disadvantage that：
The clinical scenario of local-pathological-changed tissues reparation is ever-changing, correctly selects extended region to make the skin after expansion
Skin is fully used, and improves surgical effect.Most of shape for areas is simultaneously irregular, although expander have different specifications and
Model, but still changeable confession area is not adapted to, therefore, it is difficult to meet the needs of clinical practice.
From the perspective of expander design, the expander bottom surface of Clinical practice is mostly plane or arc at present, although energy
Fitting part body surface, but under many circumstances, such as the crown, shoulder joint and wall of the chest etc., expander bottom surface fails to paste well
The geometric shape of fit table, this can cause following drawback：1. expander stability reduces.2. expander is applied to bottom tissue
Pressure is uneven, and local nerve compression is excessive to cause pain.
Expander water filling can press when expanding to the skin on its surface, if local skin was under pressure, conference caused blood
Transport obstacle so that this partial skin is more easy to ulceration compared with surrounding skin.Expand profile and the distribution of expansion skin pressure of capsule
It is closely bound up, if the local curvature of expansion capsule crosses conference and increases the pressure that its surface spreading skin is subject to.Expansion customization, structure
During complex expander, due to the preoperative effective assessment lacked for the distribution of skin pressure, complication is often resulted in
It is occurred frequently, the consequences such as efficiency reduces.
The content of the invention
It is an object of the present invention to overcome the deficiencies in the prior art, there is provided one kind combines laser body surface scanning technique, limited
Meta Model is analyzed and 3D printing technique, customization fitting privileged site, to the side of the expander of skin pressure relative distribution during expansion
Method, i.e., the method for a kind of expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique.
The purpose of the present invention is achieved by the following technical solution：
A kind of expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique of the present invention
Method, mainly include following three aspect content (i.e. three steps)：(1) body obtained according to laser body surface scanning technique
The expander bottom surface of extended region is intended in table three-dimensional data, accordingly design fitting；(2) finite element analysis software is utilized, understands expansion
At the end of the stressing conditions of skin everywhere, accordingly adjustment expansion capsule shape, carry out curvature for too high local of skin in compression
Adjustment, thus designs the expansion capsule to skin pressure relative distribution；(3) aqueduct and injection are added on the basis of capsule is expanded
Valve, and print customization expander using 3D printing technique.
A kind of expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique of the present invention
Method, specifically carry out in the steps below：
(1) design of expander bottom surface
The local three-dimensional data of patient body-surface is obtained by laser body surface scanner scanning first, clinician is on software
The scope of plan expansion is chosen out, and smooth treatment is carried out to edge, it is smooth to be consequently formed a block edge, is bonded local body profile
Curved surface；Gained curved surface importing 3D modeling software is further repaired, a height of 3-5mm of curved surface is set, and edge is radiused, i.e.,
Can be as the bottom surface of expander；
(2) design of capsule and the optimization of profile are expanded
(A) expander bottom surface is wrapped up with dome structure, forms the preliminary profile of expansion capsule, the structure in finite element analysis software
Skin expansion model is built, and imports designed expansion scrotiform shape, sets expansion capsule initial volume as 0；
(B) estimate repairing the tissue area needed for pathological tissues, it is pathological tissues to choose expansion skin surface product
The 120-200% of surface area is as expansion terminal；
(C) after reaching expansion terminal, the stressing conditions of analysis expansion skin everywhere, pressure (is ground more than 5.3-6.5kPa
Study carefully think to expand skin pressure when being higher than 5.3-6.5kPa complication rate it is higher) part be marked, and reduce
The curvature on capsule surface is expanded herein；
(D) newly-designed expansion capsule is imported into skin expansion model, again analysis be expanded to skin after terminal everywhere by
Power, if stress is respectively less than 5.3-6.5kPa everywhere, then it is assumed that pressure of the expansion capsule to expansion skin everywhere is relatively uniform, that is, completes
The design of expansion capsule and the optimization of profile；
(3) design of aqueduct and Injection valve
The expansion capsule model that will eventually determine imports 3D modeling software, plus the necessary aqueduct of composition expander and injection
Valve mechanism；Aqueduct one end is connected to a fixed with Injection valve, and the other end is fixed on expansion capsule bottom；
(4) 3D printing of expander
Expander model is imported into silica gel 3D printer, printed using medical silica-gel.
Further, in step (3), the engagement of aqueduct and expansion capsule is internal, i.e.,：It is contained in the termination of aqueduct
Expand in capsule, be integrally formed with expansion capsule, therefore, interface will not cause extra compressing to bottom tissue during expansion.
Further, in step (2), (B) is estimated repairing the tissue area needed for pathological tissues, for being grown up,
Choose expansion skin surface product and be used as expansion terminal for the 155-165% of pathological tissues surface area.
Further, in step (2), (B) is estimated repairing the tissue area needed for pathological tissues, for children,
Choose expansion skin surface product and be used as expansion terminal for the 140-145% of pathological tissues surface area.
Further, in step (3), water guide 8~12cm of pipe range, water guide bore is 1-3mm, external diameter 2-4mm.
Further, in step (3), Injection valve is two way valve, trapezoidal cylinder shape, upper surface diameter 0.4-
0.8cm, lower surface diameter 0.8-1.2cm, a height of 0.6-1.0cm.
Further, in step (3), anti-puncture stainless steel substrates are provided with inside Injection valve.
Further, in step (1), the 3D modeling software is Unigraphics NX.
Further, in step (2), described finite element analysis software is ABAQUS.
Further, in step (4), described silica gel 3D printer model ACEO Imagine Series K.
Beneficial effects of the present invention：
The invention provides one kind to combine laser body surface scanning technique, modeling Analysis and 3D printing technique, customizes
Privileged site is bonded, to the method for the expander of skin pressure relative distribution during expansion.The key problem in technology of the present invention is that：Fortune
With laser body surface scanning technique, with reference to finite element analysis software and 3D printing technique, customization fitting skin surface, to skin during expansion
Skin pressure relative distribution, meet the expander of biomethanics.
The present invention compared with prior art, has the following advantages that：
First, this customization expander bottom surface is scanned on obtained threedimensional model in laser body surface by clinician and chosen,
It is derived from being bonded body surface, meets the bottom surface of clinical requirement；Secondly, this customization expander utilizes finite element analysis software despreading
The stressing conditions of skin everywhere at the end of, for the local progress curvature adjustment that skin in compression is too high, design and meet biology
The expansion capsule of mechanics, be advantageous to reduce the risk of skin ulceration in process of expansion, improve efficiency；Finally, the expansion of customization
Prop is printed by silica gel 3D printer and completed, and improves the efficiency of expander making.
Embodiment
The present invention is further illustrated with reference to embodiments.
Embodiment 1
A kind of side for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique
Method, carry out in the steps below：
(1) design of expander bottom surface
The local three-dimensional data of patient body-surface is obtained by laser body surface scanner scanning first, clinician is on software
The scope of plan expansion is chosen out, and smooth treatment is carried out to edge, it is smooth to be consequently formed a block edge, is bonded local body profile
Curved surface；Gained curved surface is imported into 3D modeling software (Unigraphics NX) further to be repaired, sets curved surface a height of
3mm, edge are radiused, you can the bottom surface as expander.
(2) design of capsule and the optimization of profile are expanded
(A) expander bottom surface is wrapped up with dome structure, forms the preliminary profile of expansion capsule, described using Ellen Kuhl etc.
Method in the finite element analysis software (ABAQUS) structure skin expansion model, and import designed expansion scrotiform shape, if
Surely it is 0 to expand capsule initial volume；
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30%, therefore, for adult, expansion skin surface product is chosen as the 155% of pathological tissues surface area as expansion terminal；
(C) after reaching expansion terminal, the stressing conditions of analysis expansion skin everywhere, to pressure, more than 6.5kPa, (research is recognized
For expansion skin pressure be higher than 6.5kPa when complication rate it is higher) part be marked, and reduction expand herein
The curvature on capsule surface；
(D) newly-designed expansion capsule is imported into skin expansion model, again analysis be expanded to skin after terminal everywhere by
Power, if stress is respectively less than 6.5kPa everywhere, then it is assumed that pressure of the expansion capsule to expansion skin everywhere is relatively uniform, that is, completes expansion
Open the design of capsule and the optimization of profile；
(3) design of aqueduct and Injection valve
The expansion capsule model that will eventually determine imports 3D modeling software Unigraphics NX, necessary plus composition expander
Aqueduct and Injection valve structure.
Water guide pipe range 10cm, water guide bore are 2mm, external diameter 3mm.Aqueduct one end is fixedly linked with Injection valve
Connect, the other end is fixed on expansion capsule bottom, the engagement of aqueduct and expansion capsule for internal (i.e.：It is contained in the termination of aqueduct
Expand in capsule, be integrally formed with expansion capsule), therefore, interface will not cause extra compressing to bottom tissue during expansion.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.6cm, lower surface diameter 1cm are a height of
0.8cm.Valve internal has anti-puncture stainless steel substrates.
(4) 3D printing of expander
By expander model import silica gel 3D printer (Imagine Series K), entered using medical silica-gel
Row printing.
Embodiment 2
A kind of side for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique
Method, carry out in the steps below：
(1) design of expander bottom surface
The local three-dimensional data of patient body-surface is obtained by laser body surface scanner scanning first, clinician is on software
The scope of plan expansion is chosen out, and smooth treatment is carried out to edge, it is smooth to be consequently formed a block edge, is bonded local body profile
Curved surface；Gained curved surface is imported into 3D modeling software (Unigraphics NX) further to be repaired, sets curved surface a height of
4mm, edge are radiused, you can the bottom surface as expander.
(2) design of capsule and the optimization of profile are expanded
(A) expander bottom surface is wrapped up with dome structure, forms the preliminary profile of expansion capsule, described using Ellen Kuhl etc.
Method in the finite element analysis software (ABAQUS) structure skin expansion model, and import designed expansion scrotiform shape, if
Surely it is 0 to expand capsule initial volume；
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30% or so, therefore, for children, choose expansion skin surface product and be used as expansion eventually for the 145% of pathological tissues surface area
Point；
(C) after reaching expansion terminal, the stressing conditions of analysis expansion skin everywhere, to pressure, more than 5.3kPa, (research is recognized
For expansion skin pressure be higher than 5.3kPa when complication rate it is higher) part be marked, and reduction expand herein
The curvature on capsule surface；
(D) newly-designed expansion capsule is imported into skin expansion model, again analysis be expanded to skin after terminal everywhere by
Power, if stress is respectively less than 5.3kPa everywhere, then it is assumed that pressure of the expansion capsule to expansion skin everywhere is relatively uniform, that is, completes expansion
Open the design of capsule and the optimization of profile；
(3) design of aqueduct and Injection valve
The expansion capsule model that will eventually determine imports 3D modeling software Unigraphics NX, necessary plus composition expander
Aqueduct and Injection valve structure.
Water guide pipe range 8cm, water guide bore are 1mm, external diameter 2mm.Aqueduct one end is connected to a fixed with Injection valve,
The other end is fixed on expansion capsule bottom, the engagement of aqueduct and expansion capsule for internal (i.e.：Expansion is contained in the termination of aqueduct
In capsule, it is integrally formed with expansion capsule), therefore, interface will not cause extra compressing to bottom tissue during expansion.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.4cm, lower surface diameter 0.8cm are high
For 0.6cm.Valve internal has anti-puncture stainless steel substrates.
(4) 3D printing of expander
By expander model import silica gel 3D printer (Imagine Series K), entered using medical silica-gel
Row printing.
Embodiment 3
A kind of side for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique
Method, carry out in the steps below：
(1) design of expander bottom surface
The local three-dimensional data of patient body-surface is obtained by laser body surface scanner scanning first, clinician is on software
The scope of plan expansion is chosen out, and smooth treatment is carried out to edge, it is smooth to be consequently formed a block edge, is bonded local body profile
Curved surface；Gained curved surface is imported into 3D modeling software (Unigraphics NX) further to be repaired, sets curved surface a height of
5mm, edge are radiused, you can the bottom surface as expander.
(2) design of capsule and the optimization of profile are expanded
(A) expander bottom surface is wrapped up with dome structure, forms the preliminary profile of expansion capsule, described using Ellen Kuhl etc.
Method in the finite element analysis software (ABAQUS) structure skin expansion model, and import designed expansion scrotiform shape, if
Surely it is 0 to expand capsule initial volume；
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30% or so, therefore, for being grown up, choose expansion skin surface product and be used as expansion eventually for the 165% of pathological tissues surface area
Point；
(C) after reaching expansion terminal, the stressing conditions of analysis expansion skin everywhere, to pressure, more than 6.0kPa, (research is recognized
For expansion skin pressure be higher than 6.0kPa when complication rate it is higher) part be marked, and reduction expand herein
The curvature on capsule surface；
(D) newly-designed expansion capsule is imported into skin expansion model, again analysis be expanded to skin after terminal everywhere by
Power, if stress is respectively less than 6.0kPa everywhere, then it is assumed that pressure of the expansion capsule to expansion skin everywhere is relatively uniform, that is, completes expansion
Open the design of capsule and the optimization of profile；
(3) design of aqueduct and Injection valve
The expansion capsule model that will eventually determine imports 3D modeling software Unigraphics NX, necessary plus composition expander
Aqueduct and Injection valve structure.
Water guide pipe range 12cm, water guide bore are 3mm, external diameter 4mm.Aqueduct one end is fixedly linked with Injection valve
Connect, the other end is fixed on expansion capsule bottom, the engagement of aqueduct and expansion capsule for internal (i.e.：It is contained in the termination of aqueduct
Expand in capsule, be integrally formed with expansion capsule), therefore, interface will not cause extra compressing to bottom tissue during expansion.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.8cm, lower surface diameter 1.2cm are high
For 1.0cm.Valve internal has anti-puncture stainless steel substrates.
(4) 3D printing of expander
By expander model import silica gel 3D printer (Imagine Series K), entered using medical silica-gel
Row printing.
Embodiment 4
This method is substantially the same manner as Example 2, difference be in：Expand in the design of capsule and the optimization of profile,
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30% or so, therefore, for children, choose expansion skin surface product and be used as expansion eventually for the 140% of pathological tissues surface area
Point.
Embodiment 5
This method is substantially the same manner as Example 1, difference be in：Expand in the design of capsule and the optimization of profile,
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30% or so, therefore, for children, choose expansion skin surface product and be used as expansion eventually for the 120% of pathological tissues surface area
Point.
Embodiment 6
This method is substantially the same manner as Example 3, difference be in：Expand in the design of capsule and the optimization of profile,
(B) estimate repairing the tissue area needed for pathological tissues, because flap relaxation shrinkage after removing expander can
Up to 30% or so, therefore, for being grown up, choose expansion skin surface product and be used as expansion eventually for the 200% of pathological tissues surface area
Point.
Claims (10)
1. a kind of method for the expander for meeting biomethanics using the customization of laser scanning, finite element analysis and 3D printing technique,
Characterized in that, mainly include following three steps：(1) the body surface three-dimensional data obtained according to laser body surface scanning technique, if
The expander bottom surface of extended region is intended in meter fitting；(2) utilize finite element analysis software, understand skin at the end of expansion everywhere
The shape of stressing conditions, accordingly adjustment expansion capsule, curvature adjustment is carried out for too high local of skin in compression, thus designed pair
The expansion capsule of skin pressure relative distribution；(3) aqueduct and Injection valve are added on the basis of capsule is expanded, and utilizes 3D printing
Technology prints customization expander.
2. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 1
The method of expander, it is characterised in that specifically carry out in the steps below：
(1) design of expander bottom surface
The local three-dimensional data of patient body-surface is obtained by laser body surface scanner scanning first, clinician chooses on software
Go out to intend the scope of expansion, and smooth treatment is carried out to edge, be consequently formed that a block edge is smooth, be bonded the song of local body profile
Face；Gained curved surface importing 3D modeling software is further repaired, the setting a height of 3-5mm of curved surface, edge is radiused, you can makees
For the bottom surface of expander；
(2) design of capsule and the optimization of profile are expanded
(A) expander bottom surface is wrapped up with dome structure, forms the preliminary profile of expansion capsule, skin is built in finite element analysis software
Skin expands model, and imports designed expansion scrotiform shape, sets expansion capsule initial volume as 0；
(B) estimate repairing the tissue area needed for pathological tissues, it is pathological tissues surface to choose expansion skin surface product
Long-pending 120-200% is as expansion terminal；
(C) after reaching expansion terminal, the stressing conditions of analysis expansion skin everywhere, part of the pressure more than 5.3-6.5kPa is entered
Line flag, and reduce the curvature for expanding capsule surface herein；
(D) newly-designed expansion capsule being imported into skin expansion model, analysis again is expanded to the stress of skin everywhere after terminal, if
Stress is respectively less than 5.3-6.5kPa everywhere, then it is assumed that pressure of the expansion capsule to expansion skin everywhere is relatively uniform, that is, completes expansion
Open the design of capsule and the optimization of profile；
(3) design of aqueduct and Injection valve
The expansion capsule model that will eventually determine imports 3D modeling software, plus the necessary aqueduct of composition expander and Injection valve
Structure；Aqueduct one end is fixedly connected with Injection valve, and the other end is fixed on expansion capsule bottom；
(4) 3D printing of expander
Expander model is imported into silica gel 3D printer, printed using medical silica-gel.
3. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2
The method of expander, it is characterised in that in step (3), the engagement of aqueduct and expansion capsule is internal, i.e.,：The end of aqueduct
It is contained in head in expansion capsule, is integrally formed with expansion capsule.
4. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that in step (2), (B) to repair pathological tissues needed for tissue area estimate,
For adult, choose expansion skin surface and accumulate the 155-165% for pathological tissues surface area as expansion terminal.
5. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that in step (2), (B) to repair pathological tissues needed for tissue area estimate,
For children, choose expansion skin surface product and be used as expansion terminal for the 140-145% of pathological tissues surface area.
6. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that in step (3), water guide 8~12cm of pipe range, water guide bore is 1-3mm, and external diameter is
2-4mm。
7. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that in step (3), Injection valve is two way valve, trapezoidal cylinder shape, upper surface
Diameter 0.4-0.8cm, lower surface diameter 0.8-1.2cm, a height of 0.6-1.0cm.
8. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that be provided with anti-puncture stainless steel substrates in step (3), inside Injection valve.
9. meet biomethanics using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
Expander method, it is characterised in that in step (1), the 3D modeling software is Unigraphics NX；In step (2),
Described finite element analysis software is ABAQUS.
10. meet Biological Strength using laser scanning, finite element analysis and 3D printing technique customization as claimed in claim 2 or claim 3
The method of expander, it is characterised in that in step (4), described silica gel 3D printer model ACEO Imagine
Series K。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692046A (en) * | 2018-08-22 | 2019-04-30 | 厦门波耐模型设计有限责任公司 | More capsule skin tissue expanders and preparation method thereof |
| CN111419298A (en) * | 2020-03-18 | 2020-07-17 | 山东大学 | Skin expansion device and water injection amount control method |
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