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WO2023209689A1 - Équipement oculaire de protection imprimé en trois dimensions pourvues de verres correcteurs - Google Patents

Équipement oculaire de protection imprimé en trois dimensions pourvues de verres correcteurs Download PDF

Info

Publication number
WO2023209689A1
WO2023209689A1 PCT/IB2023/054489 IB2023054489W WO2023209689A1 WO 2023209689 A1 WO2023209689 A1 WO 2023209689A1 IB 2023054489 W IB2023054489 W IB 2023054489W WO 2023209689 A1 WO2023209689 A1 WO 2023209689A1
Authority
WO
WIPO (PCT)
Prior art keywords
goggles
wearer
eye
frame
protection
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.)
Ceased
Application number
PCT/IB2023/054489
Other languages
English (en)
Inventor
Ramandeep Singh
Rajdeep Singh
Ashish Suri
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.)
Dbt Department Of Biotechnology Govt Of India
All India Institute of Medical Sciences AIIMS
Original Assignee
Dbt Department Of Biotechnology Govt Of India
All India Institute of Medical Sciences AIIMS
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 Dbt Department Of Biotechnology Govt Of India, All India Institute of Medical Sciences AIIMS filed Critical Dbt Department Of Biotechnology Govt Of India
Publication of WO2023209689A1 publication Critical patent/WO2023209689A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • 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
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/02—Goggles
    • A61F9/029—Additional functions or features, e.g. protection for other parts of the face such as ears, nose or mouth; Screen wipers or cleaning devices
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C11/00—Non-optical adjuncts; Attachment thereof
    • G02C11/12—Side shields for protection of the eyes

Definitions

  • the present invention relates to a wearer specific protective eye gear with prescription glasses.
  • the invention allows the wearers to perform delicate neurosurgical procedures without the need of additional protective eye-gear and protects them from exposure to viruses and other contaminants.
  • the disclosure more particularly relates to wearer specific prescription glass based protective goggles for use during micro-surgical procedures.
  • Surgical specialties such as neurosurgery and ENT surgery require direct access to nasal cavities and paranasal sinuses. These procedures are more likely to produce infectious respiratory aerosols than coughing, sneezing, talking, or breathing. Therefore, the high-risk nature of the surgical operating rooms during such pandemics necessitates the deployment of additional protective measures.
  • Neurosurgical procedures involve direct exposure to direct nasal spaces and paranasal sinuses. This high-risk environment requires additional methods of effective protection. Therefore, wearing personal protective equipment (PPE) is mandatory to prevent spread of infection during neurosurgery.
  • PPE personal protective equipment
  • a frame in the form of a pair of specially designed glasses, goggles or an eye mask sealingly engaging the wearer's head.
  • a frame includes a front support bearing one or more transparent, preferably prescription-ground lenses or eye shields, and a pair of side supports connected thereto. Components are connected to or built into the frame to allow free passage of air to the eyes while blocking contaminant-bearing liquids and solids.
  • eyeglasses are fitted with two sets of triangular preferably air permeable flexible sheets.
  • One set of sheets depends from the side supports and is connected to the sides of the front support, with the other pair is connected to the side and front supports above the latter, being connected at its rear end to slides in the top of side support channels to permit easy folding of the glasses.
  • goggles and eye masks bear air vents fitted with liquid and solid-blocking filters. Such filters may be replaced and may be sandwiched between screens within outer vented boxes. Yet again reference is made to US5424787.
  • WO1998003893A1 discloses an eye wear that is structured to give a customized fit to each individual wearer.
  • the eyewear comprises a lens-supporting frame, a surface engaging member and a retractable device inter-connecting the lens supporting frame to the surface engaging member.
  • Various embodiments are disclosed, but one exemplary embodiment comprises a frame structured with the retractable device.
  • This invention provides protective eyewear comprising at least one removable filter assembly allowing ambient air to circulate to the eye while filtering out pathogens and other particles, he protective eyewear is adapted to removably receive and secure multiple PPE accessories, including for example face shields and face masks. Together with the protective eyewear, the PPE accessories are fastened to the user through a single head strap.
  • the eyewear can accommodate normal or prescription lenses and is configured with a rigid frame and flexible seal to provide a snug, airtight fit.
  • Another object of present invention is to develop wearer specific protective eye gear for microscopic surgeons based on wearer's facial anthropometry data to ensure a perfect ergonomic fit.
  • Another object of present invention is to develop a wearer specific fully protected person specific protective goggles with inbuilt prescription glasses.
  • Yet another object of present invention is to omit the risk of becoming a carrier by a wearer and putting patient’s life at risk.
  • Yet another object is to protect the wearer's eyes during aerosol-producing operations and to offer the largest field of view (FOV) range of vision feasible when utilising an operating microscope.
  • FOV field of view
  • One aspect of present invention relates to a wearer specific eye protection goggles with prescription glasses for use during micro-surgical procedures.
  • the eye protection goggles have provision to close-fit the eye-piece lenses of the operating microscope used in neurosurgery and microsurgery has been developed.
  • the goggles have been developed as per the facial anthropometry of the wearer.
  • the 3D model of the wearer’s face was developed using photogrammetry or 3D scanning.
  • the goggles further include a rubberized strip of 3 mm width along the edges of the goggles to provide a sealed environment inside.
  • slots were provided with dimension similar to real glasses.
  • Another aspect of present invention is to provide a method of developing a wearer specific eye protection goggles with prescription glasses by 3D printing technology using 2D images or by 3D scanning.
  • photogrammetry a set of images from various orientations was captured by the wearer himself using a photo capturing device. A mesh head model was matched with the contours in the images using various points.
  • 3D scanning a portable hand-held scanner was used to capture the facial data.
  • the face model developed using photogrammetry or 3D scanning was equivalent to the facial features of the wearer.
  • Computer aided designing was used to develop the 3D model of the goggles as per the 3D model of wearer’s face. To match the model with actual dimensions the prescription glasses of the wearer were taken as reference. The prescription glasses of the wearer were scanned and used for scaling the face model. The printed prototype was then fitted with the prescription glasses of the wearer and elastic strap.
  • FIG. 2 illustrates a schematic diagram depicting the front view of the surgeon specific eye gear 1, wherein, 2 represents the main frame of protective eye-gear, 3 and 4 represent an operating microscope eye -piece lens insertion grooves, and 5 and 6 depict hooks for the adjustable strap.
  • FIG. 4 illustrates a schematic diagram depicting the top view of the surgeon specific eye gear 1, wherein, 8a and 8b represents top vents with HEPA filters and 7a portrays rubber sealing for the forehead.
  • FIG. 6 illustrates a schematic diagram depicting the isometric view of the surgeon specific eye gear 1, wherein, 7 represents the rubber seal (to ensure proper fitting), and 10 depicts press-fitted vison glasses space.
  • said goggles comprises prescription glasses, wherein the prescription glasses of said goggles are releasably secured in said front support, wherein said frame hass soft and flexible material at the area that comes into contact with the user's face, wherein said front support has provision to close-fit eye-piece lenses of the operating microscope; wherein said frame includes air vents with filters therein to provide free passage of air while eliminating fogging; wherein said frame is prepared based on wearer's facial anthropometry data obtained through 3D modelling of the wearer’s face to ensure a perfect ergonomic fit; wherein the 3D model of wearer’s face can be achieved by capturing multiple images, by a 3D scanner, of their face from different angles, tracing a 3D curve on the nose, temples and forehead regions of the scanned surface and using said 3D curve to fabricate 3D model of the wearer’s face.
  • Computer aided designing was used to develop the 3D model of the goggles as per the 3D model of wearer’s face.
  • the scaling of the model was not as per actual dimensions of wearers face in case of photogrammetry based face model.
  • the prescription glasses of the wearer were taken as reference. The prescription glasses of the wearer were scanned and used for scaling the face model.
  • the sealing means includes a rubberized strip of 3 mm width along the edges of the goggles to provide a sealed environment inside.
  • said goggles includes slots in the front support to releasably secure the prescription glasses.
  • the slots are provided with dimension similar to real glasses.
  • said frame side supports includes two slots designed for fixation of the flexible adjustable straps.
  • the goggles were developed using multi-material 3D printing technology. This allows fabrication of different materials in a single print and provides the final assembled prototype.
  • the goggles were developed using two materials, which include ABS plastic for the eye-gear and agilus for the rubber seal. The printed prototype was then fitted with the prescription glasses of the wearer and elastic strap.
  • a process of developing a surgeon specific eye gear comprises the steps of capturing multiple images, by a 3D scanner or photogrammetry, of the face of the user from different angles, tracing a 3D curve on the nose, temples and forehead regions of the scanned surface and using said 3D curve to fabricate 3D model of the wearer specific eye-gear.
  • FIG. 2 depicts the front view of the surgeon specific eye gear 1, wherein, 2 represents the main frame of protective eye-gear, 3 and 4 represent an operating microscope eye -piece lens insertion grooves, and 5 and 6 depict hooks for the adjustable strap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Otolaryngology (AREA)
  • Vascular Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eyeglasses (AREA)

Abstract

L'invention concerne des lunettes de protection oculaire spécifiques à un utilisateur, présentant des verres correcteurs, destinées à être utilisées pendant des procédures microchirurgicales. Les lunettes de protection oculaire, en mesure d'adapter étroitement l'œil-les lentilles oculaires du microscope opératoire utilisé en neurochirurgie et en microchirurgie ont été développées, les lunettes ayant été développées en fonction de l'anthropométrie faciale de l'utilisateur. Le modèle 3D du visage de l'utilisateur a été développé à l'aide de la photogrammétrie.
PCT/IB2023/054489 2022-04-29 2023-04-29 Équipement oculaire de protection imprimé en trois dimensions pourvues de verres correcteurs Ceased WO2023209689A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202211025264 2022-04-29
IN202211025264 2022-04-29

Publications (1)

Publication Number Publication Date
WO2023209689A1 true WO2023209689A1 (fr) 2023-11-02

Family

ID=88518025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/054489 Ceased WO2023209689A1 (fr) 2022-04-29 2023-04-29 Équipement oculaire de protection imprimé en trois dimensions pourvues de verres correcteurs

Country Status (1)

Country Link
WO (1) WO2023209689A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088613A1 (en) * 2003-10-23 2005-04-28 Jackson Michael T. Adjustable and reconfigurable eyeglasses
US20180303190A1 (en) * 2015-06-19 2018-10-25 Oakley, Inc. Sports helmet having modular components
CN111452350A (zh) * 2020-06-04 2020-07-28 来庆国 一种多功能医用护目镜面部轮廓拟合设计与3d打印方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088613A1 (en) * 2003-10-23 2005-04-28 Jackson Michael T. Adjustable and reconfigurable eyeglasses
US20180303190A1 (en) * 2015-06-19 2018-10-25 Oakley, Inc. Sports helmet having modular components
CN111452350A (zh) * 2020-06-04 2020-07-28 来庆国 一种多功能医用护目镜面部轮廓拟合设计与3d打印方法

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