CN106038029A - Shape memory medical splint - Google Patents
Shape memory medical splint Download PDFInfo
- Publication number
- CN106038029A CN106038029A CN201610520027.2A CN201610520027A CN106038029A CN 106038029 A CN106038029 A CN 106038029A CN 201610520027 A CN201610520027 A CN 201610520027A CN 106038029 A CN106038029 A CN 106038029A
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- Prior art keywords
- shape memory
- layer
- temperature
- splint
- medical splint
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- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims abstract description 10
- 239000002861 polymer material Substances 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 206010017076 Fracture Diseases 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 3
- 229920000431 shape-memory polymer Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000012781 shape memory material Substances 0.000 claims description 2
- 239000004753 textile Substances 0.000 claims description 2
- 239000005439 thermosphere Substances 0.000 claims description 2
- 239000004604 Blowing Agent Substances 0.000 claims 1
- 239000006263 elastomeric foam Substances 0.000 claims 1
- 230000006386 memory function Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 210000000988 bone and bone Anatomy 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract 2
- 230000003000 nontoxic effect Effects 0.000 abstract 2
- 238000005187 foaming Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 7
- 239000011505 plaster Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- 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
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
- A61F5/058—Splints
- A61F5/05841—Splints for the limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention provides a medical splint with a thermotropic shape memory function, which is used for fixing of human fracture positions and belongs to the field of bone fixation and polymer material processing. The medical splint comprises a splint main body and a temperature control system. The temperature control system can realize heating and temperature control of the splint main body, and make a splint shape memory layer be rapidly deformed to the best shape of the fracture position in an attached manner by using a fabric layer and a connecting layer at the temperature of thermal deformation, and then fast cooling and fixing are performed, and the splint also needs to be heated to the temperature of thermal deformation during dismounting, a connecting structure is detached, and the splint can be easily dismounted. The shape memory layer is made of environment-friendly non-toxic polymer materials. A foam insulation layer is made of environment-friendly non-toxic physical foaming materials. The medical splint has the advantages of light weight, high strength, convenient operation, accurate temperature control and capability of recycling.
Description
Technical field
The present invention relates to a kind of skeletal fixation with shape memory function or correct clamping plate, including cleat body and temperature
Control system two large divisions, cleat body is mainly prepared by the macromolecular material with thermal shape memory function, belongs to high score
Sub-material processing field, utilizes its thermal shape memory function, when fracture fixation by being heated to deformation temperature, makes it outside
Mould target shape under the constraint of layer material, reach the effect of fixing fracture site, by gauze or drug-loaded layer in changing, can weigh
Multiple use.
Background technology
In China, it is plaster fixing that fracture fixation aspect is applied most at present, and it is solid that its reason is that plaster bandage has
The advantages such as after change, insensitivity is good, effective, but due to plaster bandage have that quality is big, poor air permeability, the most quick detachable etc. no
Foot, along with the development of new material, the medical high polymer strap occurred in recent years with it in fixed speed and firm journey
On degree and comfortableness, it is better than the feature of conventional plaster bandage clamping plate, is more and more paid close attention to by people.
Chinese patent CN02150720.1 discloses a kind of shape memory bone fixing splint, by shape memory high molecule material
Material and thermo electric material make, when being heated to transition temperature or time above skeletal fixation clamping plate soften and shrinks pack tightly fracturing
Or osteotomy site, operation temperature is 45～75 DEG C, and clamping plate internal layer and contact skin position are not provided with thermal insulation layer, and temperature controls shape
Shape changes extremely important, but the not mentioned accuracy control method to temperature of this technology.CN200510020610.9 discloses one
Antibacterial shape memory polyurethane Osteological, solid rehabilitation sheet material and preparation method thereof, this sheet material is added by shape memory polyurethane
Antibacterial and inorganic filler are prepared from by heating pressurization, are not directed to its planform.
The technology provide a kind of can the shape memory medical splint of intelligent temperature control, it is ensured that temperature accurately and intelligence control
System, the beneficially figuration of shape-memory material, internal layer gauze or drug-loaded layer are replaceable, make medical splint to be recycled for multiple times,
Achieve the theory of environmental protection, cost-effective.
Summary of the invention
A kind of shape memory medical splint, this medical splint includes cleat body and temperature control system two large divisions；Folder
Plate main body includes the most successively: replaceable gauze layer (or drug-loaded layer), insulated foam coating, shape memory layer, zone of heating (or
Heating module), tissue layer, attachment structure, each layer is sequentially connected, and attachment structure is positioned at clamping plate both sides and is connected with tissue layer, it is possible to
Make medical splint close up and open；Temperature control system includes: temperature collect module, interface, intelligent temperature control module, adds
Thermosphere (or heating module) is connected with intelligent temperature control module by interface respectively with temperature collect module, temperature acquisition mould
Block is placed between shape memory layer and foam insulation, embed shape memory layer inner surface, interface be placed in shape memory layer and
On zone of heating skeleton, temperature control modules uses external, and one end is connected with medical splint main body by interface, the other end and
Safety power supply connects.
Described shape memory medical splint, it is characterised in that this medical splint overall structure is the vertical of the most slightly gradient
Body structure, in skeletal like, section configuration is c-type, and c-type end is provided with gap, it is simple to figuration and ventilative, clamping plate overall length be 200～
350mm。
Described foam heat-insulating layer thickness is 1～3mm, is to use supercritical CO2Or supercritical N2Or pentane or hexamethylene are thing
The thermoplastic of haircut infusion or thermoplastic elastomer (TPE) foam.
Described shape memory layer thickness is 1～4mm, and material is thermo-stimulative shape memory polymer material, when heating-up temperature reaches
During to its heat distortion temperature, rely on tissue layer and attachment structure to tighten up clamping plate, be allowed to well fit, after cooling with fracture site
Shape is made to be fixed up, heat distortion temperature scope 46～74 DEG C.Thermo-stimulative shape memory polymer material passes through glass transition, chain
Entanglement etc. realizes the change of shape, and the reply of shape is realized by chemical crosslinking or physical connection, and adoptable material is as poly-newborn
Acid (PLA), high density polyethylene (HDPE) (HDPE), Low Density Polyethylene (LDPE), trans-1,4-iroprene polymer (TPI), polyurethane
Deng, or being blended or partial cross-linked system with these materials as matrix, shape memory layer can arrange perforate, it is simple to ventilative.Shape
Shape memory layer uses injection molding forming method manufacture, can directly be molded into three-dimensional C-shaped configuration, or first be molded by plane shape memory
Layer, more mounted thereon other each layer and attachment structures, obtain three-dimensional C-shaped configuration by adding thermal flexure afterwards, and cool down fixing
This shape.
Described zone of heating (or heating module) is the insulated electro heater strip of diameter 0.2～1.5mm, is uniformly arranged in shape note
Recall in the groove of layer outer surface, depth of groove 0.3～1.6mm, and fixed, or it is fluted that electrical heating wire is placed in two bands
Shape memory layer between, electrical heating wire institute's galvanization and voltage are electric current safe to the human body and voltage.
Described tissue layer uses thermodurable textile, such as polyester, nylon fabrics or by wide 1～3mm, the thermoplastic elastomehc of thick 1～2mm
Gonosome braiding forms, and covers at electrical heating wire outer layer.Both ensured enough intensity, had again good breathability, with zone of heating and
Shape memory layer connects at middle skeleton position, and connected mode can use the binding agent of environment-protecting asepsis or use frame for movement even
Connect.
Described attachment structure is flexible filaments locking connection structure or multiple rows of post holes attachment structure, outside can being applied by tissue layer
Power, makes to reach the shape memory layer deformation of heat distortion temperature, the chi closed up according to patients with fractures position skeleton thickness regulation clamping plate
Very little, simultaneously facilitate dismounting.
Described temperature collect module is slice heat sensitive resistor, embeds the internal layer surface of shape memory layer, can be according to clamping plate
Shape arranges multiple critesistor at different parts, it is simple to accurate temperature controlling.
Described intelligent temperature control module can show and arrange temperature have self-setting function, and refer to heating
Showing lamp, can arrange the upper limit of heating-up temperature according to the operation temperature of shape memory layer, accurate temperature control, this module also can be as required
Add other functional modules, such as Wifi module or GPRS module, by mobile phone A PP or internet works software intelligent temperature control, institute's electricity consumption
Source is power supply safe to the human body.
Described interface is connected to one end of clamping plate skeleton, heat-resistant insulating macromolecular material prepare, at shape memory
Will not softening transform under the heat distortion temperature of material.
The invention have the advantage that
(1) shape memory layer uses the macromolecular material with shape memory function to prepare, and light weight, intensity are high, there have to be good
Good water proofing property.
(2) temperature control system enables the temperature of clamping plate accurately to control, also by adding the corresponding function module, it is achieved
Mobile phone A PP or the Based Intelligent Control of the Internet.
(3) clamping plate shape under deformation temperature is freely adjustable, and be allowed to more fit skin, and has good breathability,
More meet medical requirement and human body comfort requirement, make goods play maximum application and be worth.
(4) this article construction is compact, easy to operate, applied widely, can regulate article shape according to human body different parts.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of shape memory medical splint of the present invention, but is not limited only to this kind of structure and connection
Mode；
Fig. 2 crosses A-A broken section enlarged drawing for being perpendicular to cleat rotation axis direction.
This shape memory medical splint is mainly made up of two large divisions:
(1) cleat body 1-6
1 it is gauze layer (or drug-loaded layer), 2 is insulated foam coating, 3 is shape memory layer, 4 is zone of heating (or heated mould
Block), 5 tissue layer, 6 be attachment structure
(2) it is temperature control system 7-10
7 be temperature collect module, 8 be interface, 9 be intelligent temperature control module, 10 for safety power supply
Detailed description of the invention
Accompanying drawings.
The installation of shape memory medical splint and dismounting
Intelligent temperature control module 9 is connected with interface 8, opens power supply 10, heating upper limit 65 DEG C is set, heating
Layer (heating module) 4 begins to warm up, and in heating process, the temperature signal of shape memory layer 3 is reached intelligence by temperature collect module 7
Energy temperature control modules 9, when temperature reaches design temperature, stops heating.Medical splint is placed into the limbs portion that patient is injured
Position, tightens up shape memory layer 3 by tissue layer 5 and attachment structure 6 so that it is figuration, and insulated foam coating 2 trap heat is delivered to yarn
Layer of cloth (or drug-loaded layer) 1.After shape memory layer 3 figuration, cut off the electricity supply, make shape memory layer be cooled fast to deformation temperature with
Under, shape is fixed.Intelligent temperature control module 9 and interface 8 being disconnected, clamping plate install.
Heat by above-mentioned steps during dismounting, when temperature reaches design temperature, unclamp attachment structure 6, the most dismountable.
X-ray can be reached by during use and observe injury, and by said process clamping plate be adjusted or change dressings.
Claims (10)
1. a shape memory medical splint, it is characterised in that: this medical splint includes cleat body and temperature control system two
Major part；Cleat body includes the most successively: replaceable gauze layer or drug-loaded layer, insulated foam coating, shape memory layer, add
Thermosphere or heating module, tissue layer, attachment structure, each layer is sequentially connected, and attachment structure is positioned at clamping plate both sides and is connected with tissue layer,
Medical splint can be made to close up and open；Temperature control system includes: temperature collect module, interface, intelligent temperature control mould
Block, zone of heating or heating module, temperature collect module are connected with intelligent temperature control module by interface respectively, temperature acquisition
Module is placed between shape memory layer and foam insulation, embeds shape memory layer inner surface, and interface is placed in shape memory layer
With on zone of heating skeleton, temperature control modules uses external, and one end is connected with medical splint main body by interface, the other end
It is connected with safety power supply.
Shape memory medical splint the most according to claim 1, it is characterised in that this medical splint overall structure is axial
The slightly stereochemical structure of gradient, in skeletal like, section configuration is c-type, and c-type end is provided with gap, clamping plate overall length be 200～
350mm。
Shape memory medical splint the most according to claim 1, it is characterised in that described foam heat-insulating layer thickness be 1～
3mm, is to use supercritical CO2Or supercritical N2Or pentane or thermoplastic that hexamethylene is physical blowing agent or thermoplastic elastomehc
Elastomeric foam.
Shape memory medical splint the most according to claim 1, it is characterised in that described shape memory layer thickness be 1～
4mm, is shaped as skeleton construction, and material is thermo-stimulative shape memory polymer material, when heating-up temperature reaches its heat distortion temperature
Time, rely on tissue layer and attachment structure to tighten up clamping plate, be allowed to well fit with fracture site, under making shape fixing after cooling
Come, heat distortion temperature scope 46～74 DEG C.
Shape memory medical splint the most according to claim 1, it is characterised in that described zone of heating (or heating module) is
The insulated electro heater strip of diameter 0.2～1.5mm, is uniformly arranged in the groove of shape memory layer outer surface, depth of groove 0.3～
1.6mm, and fixed, electrical heating wire institute's galvanization and voltage are electric current safe to the human body and voltage.
Shape memory medical splint the most according to claim 1, it is characterised in that described tissue layer uses thermodurable textile, as
Polyester, nylon fabrics or by wide 1～3mm, the thermoplastic elastomer (TPE) braiding of thick 1～2mm forms, and covers at electrical heating wire outer layer.
Shape memory medical splint the most according to claim 1, it is characterised in that described attachment structure is that flexible screw thread connects
Access node structure or multiple rows of post holes attachment structure, can apply external force by tissue layer, makes the shape memory layer reaching heat distortion temperature become
Shape, the size closed up according to patients with fractures position skeleton thickness regulation clamping plate.
Shape memory medical splint the most according to claim 1, it is characterised in that described temperature collect module is chip
Critesistor, embeds the internal layer surface of shape memory layer, can arrange multiple critesistor according to cleat shapes at different parts, just
In accurate temperature controlling.
Shape memory medical splint the most according to claim 1, it is characterised in that described intelligent temperature control module energy
Enough show and temperature is set that there is self-setting function, and with burner on light, can set according to the operation temperature of shape memory layer
Putting heating-up temperature, accurate temperature control, this module can be added as needed on other functional modules, such as Wifi module or GPRS module, borrows
Assistant machine APP or internet works software intelligent temperature control, power supply used is power supply safe to the human body.
Shape memory medical splint the most according to claim 1, it is characterised in that described interface is connected to shape note
Recall a layer skeleton one end, heat-resistant insulating macromolecular material prepare, change will not be softened under the heat distortion temperature of shape-memory material
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610520027.2A CN106038029A (en) | 2016-07-04 | 2016-07-04 | Shape memory medical splint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610520027.2A CN106038029A (en) | 2016-07-04 | 2016-07-04 | Shape memory medical splint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106038029A true CN106038029A (en) | 2016-10-26 |
Family
ID=57201750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610520027.2A Pending CN106038029A (en) | 2016-07-04 | 2016-07-04 | Shape memory medical splint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106038029A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618837A (en) * | 2016-11-04 | 2017-05-10 | 刘朋 | Breastbone fixing device |
| CN109106496A (en) * | 2018-07-11 | 2019-01-01 | 芜湖帮许来诺医疗设备科技有限公司 | A kind of Novel medical clamping plate |
| CN109350338A (en) * | 2018-12-05 | 2019-02-19 | 天津科技大学 | A kind of medical splint |
| CN110269735A (en) * | 2019-07-09 | 2019-09-24 | 云南科威液态金属谷研发有限公司 | The medical fixed device of liquid metal |
| CN110621266A (en) * | 2017-08-30 | 2019-12-27 | 株式会社龙实验室 | Easy-to-insert menstrual cup |
| WO2020012508A1 (en) * | 2018-07-13 | 2020-01-16 | Gosakan Haripriya Sumana | Conformable orthosis |
| CN112190390A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工业大学 | Shape memory low-temperature treatment neck sleeve and using method thereof |
| CN112587296A (en) * | 2020-12-15 | 2021-04-02 | 哈尔滨工业大学 | Medical ice cap of flexible |
| CN114177538A (en) * | 2021-12-31 | 2022-03-15 | 北京翌光医疗科技研究院有限公司 | Conformal phototherapy module, conformal phototherapy system device and using method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618837A (en) * | 2016-11-04 | 2017-05-10 | 刘朋 | Breastbone fixing device |
| CN110621266A (en) * | 2017-08-30 | 2019-12-27 | 株式会社龙实验室 | Easy-to-insert menstrual cup |
| CN109106496A (en) * | 2018-07-11 | 2019-01-01 | 芜湖帮许来诺医疗设备科技有限公司 | A kind of Novel medical clamping plate |
| WO2020012508A1 (en) * | 2018-07-13 | 2020-01-16 | Gosakan Haripriya Sumana | Conformable orthosis |
| CN109350338A (en) * | 2018-12-05 | 2019-02-19 | 天津科技大学 | A kind of medical splint |
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| CN110269735A (en) * | 2019-07-09 | 2019-09-24 | 云南科威液态金属谷研发有限公司 | The medical fixed device of liquid metal |
| CN112190390A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工业大学 | Shape memory low-temperature treatment neck sleeve and using method thereof |
| CN112587296A (en) * | 2020-12-15 | 2021-04-02 | 哈尔滨工业大学 | Medical ice cap of flexible |
| CN114177538A (en) * | 2021-12-31 | 2022-03-15 | 北京翌光医疗科技研究院有限公司 | Conformal phototherapy module, conformal phototherapy system device and using method |
| CN114177538B (en) * | 2021-12-31 | 2024-03-08 | 北京翌光医疗科技研究院有限公司 | Conformal phototherapy module, conformal phototherapy system device and use method |
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