[go: up one dir, main page]

CN114189668B - Wearable wound surface imaging device and imaging method - Google Patents

Wearable wound surface imaging device and imaging method Download PDF

Info

Publication number
CN114189668B
CN114189668B CN202111420405.7A CN202111420405A CN114189668B CN 114189668 B CN114189668 B CN 114189668B CN 202111420405 A CN202111420405 A CN 202111420405A CN 114189668 B CN114189668 B CN 114189668B
Authority
CN
China
Prior art keywords
imaging device
wound
light source
wearable
structured light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111420405.7A
Other languages
Chinese (zh)
Other versions
CN114189668A (en
Inventor
莫林涛
史丙华
罗文典
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Hairun Biological Technology Co ltd
Original Assignee
Changsha Hairun Biological Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changsha Hairun Biological Technology Co ltd filed Critical Changsha Hairun Biological Technology Co ltd
Priority to CN202111420405.7A priority Critical patent/CN114189668B/en
Publication of CN114189668A publication Critical patent/CN114189668A/en
Application granted granted Critical
Publication of CN114189668B publication Critical patent/CN114189668B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/204Image signal generators using stereoscopic image cameras
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/204Image signal generators using stereoscopic image cameras
    • H04N13/254Image signal generators using stereoscopic image cameras in combination with electromagnetic radiation sources for illuminating objects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/271Image signal generators wherein the generated image signals comprise depth maps or disparity maps

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention discloses wearable wound imaging equipment and an imaging method, wherein the imaging equipment comprises a wearing device worn on the body of an operator and an imaging device, the imaging device is arranged on the wearing device, one side of the imaging device, facing to a wound, is provided with a structured light source, and the imaging device acquires a wound three-dimensional scanning image under the irradiation of the structured light source. The imaging device has the advantages of no need of hand holding, convenient operation, complete and accurate information recording, no contact with wound surface and the like, and the imaging method is completed by adopting the device and also has the advantages.

Description

Wearable wound surface imaging device and imaging method
Technical Field
The invention relates to the technical field of imaging equipment, in particular to wearable wound surface imaging equipment and an imaging method.
Background
Open wounds require continuous recording of the morphology of the wound during repair because of difficult healing or long treatment cycles. The existing recording mode usually takes a picture of the measuring tape, and the mode is complex in operation and can possibly contact the wound to cause infection. And shoot for handheld shooting, can't liberate both hands when shooing, consequently can't adjust patient's position or help it clearance wound, can only shoot plane image moreover, the record to wound information is incomplete, is difficult to obtain accurate surface of a wound information.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide wearable wound imaging equipment which is free from being held by hand, convenient to operate, comprehensive and accurate in information recording and free from contact with a wound surface, and an imaging method which is simple in step and uses the equipment to image.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a wearing formula surface of a wound imaging equipment, includes wearing the device of wearing on the operator's health, still includes image device, image device installs on wearing the device, and image device is equipped with the structured light source towards surface of a wound one side, and image device acquires the surface of a wound stereoscopic scan image under the irradiation of structured light source.
As a further improvement of the wearable wound surface imaging device, the following is adopted:
the structured light source includes a dynamic structured light and a static structured light.
The dynamic structure light is in a scanning line or a scanning point on the wound surface, and the static structure light is in a lattice, a linear array or a flaky matrix on the wound surface.
The imaging device is communicatively connected to an external server.
The imaging device comprises a communication module and a storage module for storing the wound surface three-dimensional scanning image, and the storage module is in communication connection with the receiving terminal through the communication module.
The wearing device is a pair of goggles covered on eyes of an operator, and the goggles are provided with a head belt for binding and fixing the head; the imaging device is arranged on the lower surface of the front end of the goggles, and the lens faces to the front of the goggles.
The wearable device is a headset, the imaging device is arranged on one side of the headset, and the lens faces to the front of the headset.
The wearing device is a helmet, the imaging device is arranged on the front side of the helmet, and the lens faces to the front of the helmet.
The wearable device is a bracelet, the imaging device is arranged on the bracelet, and the lens is positioned on one side face of the bracelet facing the hand.
The wearing device is a glove, the imaging device is arranged on the glove, and the lens is positioned at the palm of the glove.
An imaging method of wearable wound imaging equipment is carried out by the wearable wound imaging equipment, and specifically comprises the following steps:
s1: the operator wears the wearing device;
s2: turning on a structured light source, and shooting by an imaging device to obtain a phase set;
s3: and (3) turning off the light source, completing shooting, and processing the phase set through the imaging device to obtain a wound surface three-dimensional scanning image.
As a further improvement of the above-described imaging method:
in step S2, a phase set is obtained using dynamic structured light or static structured light of the structured light source.
Compared with the prior art, the invention has the advantages that:
compared with a planar shooting image, the wearable wound imaging device can directly record the planar size information of the wound, can record the depth information of the wound, can display the wound characteristics more vividly, does not need to put a measuring rule, and avoids the contact infection of the wound caused by the measuring rule. The imaging device is arranged on the wearing device, and an operator does not need to hold the imaging device by hand, so that the body position of a patient can be changed by the hands of the operator, the imaging device is convenient for shooting multi-angle wound images, and the wound can be cleaned conveniently. The imaging device is provided with a structured light source towards one side of the wound surface, and under the irradiation of the light source, the imaging device can shoot and obtain a structured light image for curved surface simulation, namely a three-dimensional scanning image of the wound surface is obtained, and the wound surface can be monitored in time through the image.
Drawings
Fig. 1 and 2 are schematic structural views of a wearable wound surface imaging device in device embodiment 1;
fig. 3 is a schematic structural diagram of the wearable wound surface imaging device in device embodiment 3;
fig. 4 and 5 are schematic structural views of the wearable wound surface imaging device in device embodiment 4;
fig. 6 and 7 are schematic structural views of the wearable wound surface imaging device in device embodiment 5;
fig. 8 and 9 are schematic structural views of the wearable wound surface imaging device in device embodiment 6.
Legend description: 1. a wearing device; 2. an image forming apparatus.
Detailed Description
The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.
Device example 1:
as shown in fig. 1 and fig. 2, the wearable wound imaging device of the embodiment comprises a wearable device 1 worn on the body of an operator, and further comprises an imaging device 2 for acquiring a stereoscopic scan image of the wound, compared with a planar shooting image, the stereoscopic scan image of the wound can directly record the planar size information of the wound, can record the depth information of the wound, shows wound characteristics more vividly, does not need to put a measuring tape, and avoids the contact infection of the wound caused by the measuring tape. The imaging device 2 is arranged on the wearing device 1, and an operator does not need to hold the imaging device by hand, so that the body position of a patient can be changed by the hands of the operator, the imaging device is convenient for shooting multi-angle wound images, and the wound can be cleaned conveniently. The imaging device 2 is provided with a structured light source towards one side of the wound surface, under the irradiation of the light source, the imaging device 2 can shoot and obtain a structured light image for curved surface simulation, namely a three-dimensional scanning image of the wound surface is obtained, and the wound surface can be monitored in time through the image.
In order to further improve the imaging quality, a white light source and a fluorescent light source can be arranged on one side of the imaging device 2 facing the wound surface, so that the imaging device 2 can shoot and obtain an image of special secretion of bacteria under fluorescent excitation and an image observed by normal human eyes under white light, and then the image is combined with a three-dimensional image of structured light to obtain a three-dimensional wound surface infection map, and the infection distribution condition and the infection degree of the wound surface can be clearly presented through the image. When imaging, firstly turning on a fluorescent light source, when the wound surface is infected, emitting special light rays under fluorescent excitation through special secretion of bacteria, shooting by the imaging device 2, and then turning off the fluorescent light source; the white light source is turned on, then shooting is carried out through the imaging device 2, and then the infection distribution condition and the infection degree of the wound surface can be obtained by combining the phase sets shot when the fluorescent light source is turned on; and turning on a structured light source, converting a phase set obtained by shooting through the imaging device 2 and the position of the imaging device 2 to obtain the space coordinates of each pixel, performing curved surface simulation, and then combining the phase set obtained by the white light source and the fluorescent light source to obtain a three-dimensional wound infection map.
In this embodiment, the structured light source includes a dynamic structured light and a static structured light. The dynamic structure light is in scanning line or scanning point on the wound surface, and the static structure light is in lattice, linear array or sheet matrix on the wound surface.
In this embodiment, the imaging device 2 includes a communication module, and the imaging device 2 can transmit a photographed image to an external server through the communication module, and the server performs storage management and analysis. The storage module can be further arranged, the image is directly stored in the storage module, and then the image is sent to a receiving terminal such as a mobile phone, a computer or a server through the communication module to be received, so that the situation of image loss and the like when communication is not smooth is prevented.
In this embodiment, as shown in fig. 1 and 2, the wearing device 1 is a goggle covering the eyes of an operator, and a headband for binding and fixing the head is arranged on the goggle, so that the goggle can be conveniently fixed on the head of the operator; the imaging device 2 is mounted on the lower surface of the front end of the goggles, i.e. at the front position of the eyebrow, the lens faces the front of the goggles, and the wound which can be scanned at the set position corresponds to the wound which can be observed by eyes of an operator.
Device example 2:
this embodiment is substantially the same as embodiment 1 except that: in the embodiment, the fluorescent light source and the structured light source are combined and set as the fluorescent structured light source. The structured light can excite bacteria to emit fluorescence of special light by adopting specific wavelength, the infection distribution condition and the infection degree of the wound surface are obtained while the curved surface simulation is carried out through the structure, the infection distribution condition and the infection degree of the wound surface can be obtained by fitting a plurality of pictures of the fluorescent structured light, the shooting times can be reduced, and the data processing efficiency is improved.
Device example 3:
this embodiment is substantially the same as embodiment 1 and embodiment 2 except that: as shown in fig. 3, the wearable device 1 is a headset, the imaging device 2 is mounted on one side of the headset, and the lens faces the front of the headset, i.e. is consistent with the face of the operator, so that the wound surface can be photographed conveniently. The other side of earphone still can set up the structure such as memory card draw-in groove, charge mouth, and this headset can set up to bluetooth headset, avoids connecting line to influence the operation.
Device example 4:
this embodiment is substantially the same as embodiment 1 and embodiment 2 except that: as shown in fig. 4 and 5, the wearing device 1 is a helmet, the imaging device 2 is mounted on the front side of the helmet, and the lens faces the front of the helmet, namely faces the face of an operator, so that the wound surface can be photographed conveniently. The two sides of the helmet are provided with elastic fixing bands, the helmet and the head are fixedly connected, at the moment, an operator can liberate both hands when shooting a patient, and the wound seen by the operator is similar to the scanning shooting wound.
Device example 5:
this embodiment is substantially the same as embodiment 1 and embodiment 2 except that: as shown in fig. 6 and 7, the wearable device 1 is a bracelet, and the imaging device 2 is mounted on the bracelet, so that the imaging device can realize multi-directional shooting by moving the hands without greatly adjusting the body position of a patient during shooting; and the lens is located on one side of the bracelet facing the hand, so that the direction of the lens can be ensured to be clearly and completely shot to the wound surface, and the wound can be rapidly aligned by two hands to carry out scanning shooting during shooting.
Device example 6:
this embodiment is substantially the same as embodiment 1 and embodiment 2 except that: as shown in fig. 8 and 9, the wearing device 1 is a glove, and the imaging device 2 is mounted on the glove, so that the imaging device can realize multi-directional shooting by moving the hands without greatly adjusting the body position of a patient during shooting; and the lens is positioned at the palm of the glove, and can be rapidly aligned with the wound by two hands for scanning and shooting when shooting.
Method embodiment:
the imaging method of the wearable wound imaging device of the embodiment is performed by the wearable wound imaging device, and specifically comprises the following steps:
s1: the operator wears the wearing device 1;
s2: turning on a structured light source, and shooting by using dynamic structured light or static structured light of the structured light source through an imaging device 2 to obtain a phase set C;
s3: and (3) turning off the light source, completing shooting, and processing the phase set C by the imaging device 2 to obtain a wound surface three-dimensional scanning image.
An additional step may be added between steps S1 and S2: turning on a fluorescent light source, shooting by an imaging device 2 to obtain a phase set A, and turning off the fluorescent light source; turning on a white light source, and shooting by an imaging device 2 to obtain a phase set B; then, when step S3 is executed, the imaging device 2 processes the phase set a, the phase set B and the phase set C to obtain a wound infection map. By adopting the method, the infection distribution situation and the infection degree of the wound surface can be obtained by comparing the phase set A with the phase set B, the three-dimensional scan image of the wound surface can be obtained by carrying out curved surface simulation on the phase set C, the curved surface infection image can be obtained by combining the phase set A with the phase set B, the infection distribution situation and the infection degree of the wound surface of a patient can be clearly observed by the imaging device 2, the biochemical detection is not needed, and the secondary infection risk is reduced.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which do not depart from the gist of the invention are intended to be within the scope of the invention.

Claims (10)

1. A wearable wound imaging device, characterized in that: the device comprises a wearing device (1) worn on the body of an operator and an imaging device (2), wherein the imaging device (2) is arranged on the wearing device (1), a structured light source is arranged on one side of the imaging device (2) towards a wound surface, the structured light source comprises dynamic structured light and static structured light, the dynamic structured light is in a scanning line or scanning point on the wound surface, the static structured light is in a lattice, linear array or sheet-shaped matrix on the wound surface, a white light source and a fluorescent light source are arranged on one side of the imaging device (2) towards the wound surface, so that the imaging device (2) shoots and obtains an image of bacterial special secretion under fluorescent excitation and a normal human eye observation image under white light, and then the three-dimensional wound infection map is obtained by combining the three-dimensional image of the structured light, and the infection distribution condition and the infection degree of the wound surface can be clearly represented through the image; when imaging, firstly turning on a fluorescent light source, when the wound surface is infected, emitting special light rays under fluorescent excitation through special secretion of bacteria, shooting by an imaging device (2), and then turning off the fluorescent light source; turning on a white light source, shooting through an imaging device (2), and then combining the shot phase sets when the fluorescent light source is turned on to obtain the infection distribution condition and the infection degree of the wound surface; turning on a structured light source, converting the phase set obtained by shooting by the imaging device (2) and the position of the imaging device (2) to obtain the space coordinates of each point pixel, performing curved surface simulation to obtain a three-dimensional scanning image of the wound surface, and then combining the phase set obtained by the white light source and the fluorescent light source to obtain a three-dimensional wound surface infection map.
2. The wearable wound imaging device of claim 1, wherein: the imaging device (2) is in communication connection with an external server.
3. The wearable wound imaging device of claim 1, wherein: the imaging device (2) comprises a communication module and a storage module for storing wound surface three-dimensional scanning images, and the storage module is in communication connection with the receiving terminal through the communication module.
4. A wearable wound imaging device according to any one of claims 1 to 3, characterized in that: the wearing device (1) is a pair of goggles covered on eyes of an operator, and a head band used for binding and fixing the head is arranged on the goggles; the imaging device (2) is arranged on the lower surface of the front end of the goggles, and the lens faces to the front of the goggles.
5. A wearable wound imaging device according to any one of claims 1 to 3, characterized in that: the wearable device (1) is a headset, the imaging device (2) is arranged on one side of the headset, and the lens faces to the front of the headset.
6. A wearable wound imaging device according to any one of claims 1 to 3, characterized in that: the wearing device (1) is a helmet, the imaging device (2) is arranged on the front side of the helmet, and the lens faces to the front of the helmet.
7. A wearable wound imaging device according to any one of claims 1 to 3, characterized in that: the wearable device (1) is a bracelet, the imaging device (2) is arranged on the bracelet, and the lens is positioned on one side face of the bracelet facing the hand.
8. A wearable wound imaging device according to any one of claims 1 to 3, characterized in that: the wearing device (1) is a glove, the imaging device (2) is arranged on the glove, and the lens is positioned at the palm of the glove.
9. A method of imaging a wearable wound imaging device, characterized in that it is performed with a wearable wound imaging device according to any one of claims 1 to 8, comprising in particular the steps of:
s1: wearing the device (1) by an operator;
s2: turning on a structured light source, and shooting by an imaging device (2) to obtain a phase set;
s3: and (3) turning off the light source, completing shooting, and processing the phase set by an imaging device (2) to obtain a wound surface three-dimensional scanning image.
10. The method of imaging a wearable wound imaging device of claim 9, wherein: in step S2, a phase set is obtained using dynamic structured light or static structured light of the structured light source.
CN202111420405.7A 2021-11-26 2021-11-26 Wearable wound surface imaging device and imaging method Active CN114189668B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111420405.7A CN114189668B (en) 2021-11-26 2021-11-26 Wearable wound surface imaging device and imaging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111420405.7A CN114189668B (en) 2021-11-26 2021-11-26 Wearable wound surface imaging device and imaging method

Publications (2)

Publication Number Publication Date
CN114189668A CN114189668A (en) 2022-03-15
CN114189668B true CN114189668B (en) 2024-03-15

Family

ID=80602737

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111420405.7A Active CN114189668B (en) 2021-11-26 2021-11-26 Wearable wound surface imaging device and imaging method

Country Status (1)

Country Link
CN (1) CN114189668B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105357515A (en) * 2015-12-18 2016-02-24 天津中科智能识别产业技术研究院有限公司 Color and depth imaging method and device based on structured light and light-field imaging
CN106029000A (en) * 2014-02-21 2016-10-12 阿克伦大学 Imaging and display systems for guiding medical interventions
CN106796344A (en) * 2014-10-07 2017-05-31 艾尔比特系统有限公司 The wear-type of the enlarged drawing being locked on object of interest shows
CN107493427A (en) * 2017-07-31 2017-12-19 广东欧珀移动通信有限公司 Focusing method and device for mobile terminal and mobile terminal
CN208063408U (en) * 2017-12-21 2018-11-06 北京达佳互联信息技术有限公司 3D stereopsis Headphone devices
CN109938700A (en) * 2019-04-04 2019-06-28 济南显微智能科技有限公司 A head-mounted infrared fluorescence detection device
CN111897425A (en) * 2014-07-31 2020-11-06 三星电子株式会社 Wearable glasses and method for providing information using the same
CN112672137A (en) * 2019-10-15 2021-04-16 福州瑞芯微电子股份有限公司 Method for obtaining depth image, structured light system and electronic device
WO2021089440A1 (en) * 2019-11-05 2021-05-14 Arspectra Sarl Augmented reality headset for medical imaging

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7595933B2 (en) * 2006-10-13 2009-09-29 Apple Inc. Head mounted display system
US20140198190A1 (en) * 2013-01-16 2014-07-17 Kris Okumu Wearable surgical imaging device with semi-transparent screen
WO2018097831A1 (en) * 2016-11-24 2018-05-31 Smith Joshua R Light field capture and rendering for head-mounted displays
US10425633B2 (en) * 2016-12-30 2019-09-24 Konica Minolta Laboratory U.S.A., Inc. Method and system for capturing images for wound assessment with moisture detection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106029000A (en) * 2014-02-21 2016-10-12 阿克伦大学 Imaging and display systems for guiding medical interventions
CN111897425A (en) * 2014-07-31 2020-11-06 三星电子株式会社 Wearable glasses and method for providing information using the same
CN106796344A (en) * 2014-10-07 2017-05-31 艾尔比特系统有限公司 The wear-type of the enlarged drawing being locked on object of interest shows
CN105357515A (en) * 2015-12-18 2016-02-24 天津中科智能识别产业技术研究院有限公司 Color and depth imaging method and device based on structured light and light-field imaging
CN107493427A (en) * 2017-07-31 2017-12-19 广东欧珀移动通信有限公司 Focusing method and device for mobile terminal and mobile terminal
CN208063408U (en) * 2017-12-21 2018-11-06 北京达佳互联信息技术有限公司 3D stereopsis Headphone devices
CN109938700A (en) * 2019-04-04 2019-06-28 济南显微智能科技有限公司 A head-mounted infrared fluorescence detection device
CN112672137A (en) * 2019-10-15 2021-04-16 福州瑞芯微电子股份有限公司 Method for obtaining depth image, structured light system and electronic device
WO2021089440A1 (en) * 2019-11-05 2021-05-14 Arspectra Sarl Augmented reality headset for medical imaging

Also Published As

Publication number Publication date
CN114189668A (en) 2022-03-15

Similar Documents

Publication Publication Date Title
US9901242B2 (en) Host, optical lens module and digital diagnostic system including the same
CN107212851B (en) Wireless eye movement instrument
JP4216523B2 (en) unit
CN109061883B (en) Head-mounted display equipment and method for automatically measuring interpupillary distance
US20200268236A1 (en) Endoscope system
JP2018006914A (en) External imaging system, external imaging method, external imaging program
CN105342561B (en) The wearable molecular image navigation system of Wireless sound control
WO2022168689A1 (en) Neck-hanging device and remote work assisting system
JP2025083515A (en) Optical apparatus
CN114189668B (en) Wearable wound surface imaging device and imaging method
CN114624875B (en) Image calibration method and device
US10930184B1 (en) Display panel uniformity calibration system
CN114157851B (en) Wearable wound infection imaging equipment and imaging method
CN201719224U (en) Multifunctional video ear examining device
CN204377059U (en) Stereoscopic display system based on soft mirror
JP2005192583A (en) Scope unit for portable terminal
CN204275306U (en) A kind of network intelligence eye physiotherapy table
CN214104353U (en) Portable electronic endoscope based on VR technique
CN207611199U (en) A projection type virtual reality VR glasses display device
WO2024242879A1 (en) Imaging for optical viewing devices
CN205094589U (en) Formula molecule image navigation is dressed in wireless acoustic control
KR101771201B1 (en) The apparatus of multi view to connect a smart phone
CN108236452B (en) Slit-lamp microscope
CN221383501U (en) Quick inspection device of medical endoscope lens
TWI589261B (en) Simplified otoscope capable of connecting with portable digital equipments

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant