# US 2025/0144362 A1 · Screen for image projection during surgery and a patient assistance projection system. > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0144362 A1 - Document ID: US20250144362A1 - Status: Published application - Kind: A1 - Application number: 18/833,719 - Filed: 2022-01-26 - Published: 2025-05-08 - Earliest claimed: 2022-01-26 - Inventors: José Luis MOSSO-VÁZQUEZ - Web page: https://patentgrep.com/patent/US20250144362A1 ## CPC - A61B 50/10: Furniture specially adapted for surgical or diagnostic appliances or instruments - A61M 21/02: for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia (for massage A61H; electrotherapy A61N, e.g. applying alternating or intermittent electric currents for producing anaesthesia A61N1/36021) - G03B 21/56: Projection screens - A61M 2021/005: {images, e.g. video} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) ## Abstract A back projection screen that allows the awake patient to move the head and neck freely and yet be able to look at the images that are displayed during surgery, but at the same time allows a surgery crew, in particular an anesthesiologist, to watch the airway passage and the consciousness state of the patient, and to monitor signs including color of the lips, eyes movement, verbal responses, skin sensitivity, and the like, as well as to maneuver for intubation or other procedures without removing the screen during surgery. The back projection screen allows also eye contact and/or face to face interaction, physically or virtually, with the surgeon or other members of the surgery team for effective communication and is suitable for easy cleaning or disinfection from bacteria or viruses as required by operating rooms. ## Claims ### Claim 1 A projection screen comprising: a laminar body with an arched surface for projection of images that is configured to face the concave side of the arched surface towards a patient, who will see the images therein projected, wherein the arc has a length and angle enough to define a space from the nose of the patient to the center of the arc that is enough to allow a health professional to monitor the patient's signs and symptoms and to maneuver around the patient's mouth and nose in case of emergency; and supporting means support the laminar body and place the projection screen on a surface where the patient lays; wherein the projection screen is made in one piece, without sharp edges, of a material that is sterilizable, disinfectant and/or susceptible of disinfection, and has an opacity enough to allow the patient and the members of the surgery or medical team to see through the projection screen but also to allow the projection of images on the arched surface to be seen by the patient during surgery or medical procedures. ### Claim 2 (depends on 1) The projection screen according to claim 1, wherein the laminar body is made of a composite of at least two layers, a support layer comprising a transparent polymeric material for providing mechanical support to the projection screen, and a projection layer comprising at least one film with a surface treated to provide the opacity and texture necessary for the projection of the images. ### Claim 3 (depends on 2) The projection screen according to claim 2, wherein the laminar body comprises additionally a protective layer of transparent polymeric material thereby forming a composite where the projection layer is embedded within the support and the protective layers. ### Claim 4 (depends on 3) The projection screen according to claim 3, wherein the protective layer is made of the same material as the support layer. ### Claim 5 (depends on 3) The projection screen according to claim 3, wherein the protective layer is located on the concave side of the arched surface of the projection screen. ### Claim 6 (depends on 1) The projection screen according to claim 1, wherein the arc defining the arched surface of the projection screen has an angle from 130 to 250 degrees. ### Claim 7 (depends on 6) The projection screen according to claim 6, wherein the arc defining the arched surface of the projection screen has an angle from 180 to 250 degrees. ### Claim 8 (depends on 1) The projection screen according to claim 1, wherein the arc defining the arched surface of the projection screen, has a cord equal to the standard width of a surgery table. ### Claim 9 (depends on 1) The projection screen according to claim 1, wherein the arc defining the arched surface of the projection screen has a cord as a minimum 30% larger than the maximum expected biacromial diameter of a person. ### Claim 10 (depends on 1) The projection screen according to claim 1, wherein the supporting means are located along the edge of the laminar body at the extremes of the arch defined by its arched surface and extend along the cord of the arch, thereby joining the two arched surface extremes to conform a single piece with the laminar body and to provide a supporting surface for contact with another surface intended to let a patient lay. ### Claim 11 (depends on 10) The projection screen according to claim 10, wherein the supporting means comprise a first section that extends from the end point of the laminar body towards the supporting surface and a second section consisting of the supporting surface itself. ### Claim 12 (depends on 1) The projection screen according to claim 1, wherein the supporting means define a larger length on one side of the laminar body than the length of the supporting means at the other side of the laminar body, to provide a larger space to allow a health professional to maneuver around the mouth and nose of a patient subject to surgery or medical procedures but also to provide a better angle for the patient and the health professionals to view the projected images. ### Claim 13 (depends on 11) The projection screen according to claim 11, wherein the larger length is defined by the first section. ### Claim 14 (depends on 6) The projection screen according to claim 6, wherein the arc defining the arched surface is not perpendicular to the supporting means. ### Claim 15 (depends on 14) The projection screen according to claim 14, wherein the arc defining the arched surface at the front of the projection screen has a different angle than the arc defining the arched surface at the back of the projection screen. ### Claim 16 (depends on 1) The projection screen according to claim 1, wherein the supporting means include holding means. ### Claim 17 (depends on 16) A the projection screen according to claim 16, wherein the holding means consist of at least one handle that is formed by an opening on the side of the supporting means. ### Claim 18 (depends on 16) The projection screen according to claim 16, the supporting means include shapes to fit the arms of a patient in order to increase the comfort during surgery or medical procedures. ### Claim 19 (depends on 1) A patient assistance projection system comprising the projection screen according to claim 1; at least one set of processing means capable of storing, capturing, showing, communicating and/or transmitting images or video; and, at least one projector capable of receiving image or video data from the processing means and conform an image to be shown on the projection screen. ### Claim 20 (depends on 19) The patient assistance projection system according to claim 19, wherein the processing means are selected from cell phones or tablets with image and video capture and transmission capabilities, which are connected to live video contents or have memory stored image or video contents. ### Claim 21 (depends on 19) The patient assistance projection system according to claim 19, wherein the processing means are connected to the projector by cable or wireless communication systems. ### Claim 22 (depends on 19) The patient assistance projection system according to claim 19, wherein the projection system includes holders for the processing means and/or the projector, to facilitate manipulation and location of both during surgery or medical procedures. ### Claim 23 (depends on 22) The patient assistance projection system according to claim 22, wherein the holders are selected from cellphone holders, tripods, surgery room fixtures or medical device holders. ### Claim 24 (depends on 19) The patient assistance projection system according to claim 19, wherein the projector is a micro-projector capable of projecting from at least 1 meter to fit the projected content on the arched surface. ### Claim 25 (depends on 19) The patient assistance projection system according to claim 19, wherein the projected material is suitable to reduce the anxiety of the patient. ### Claim 26 (depends on 1) A method for reducing the anxiety level of a patient subject to surgery or a medical procedure comprising the steps of: placing the projection screen according to claim 1; projecting on the projection screen an image or video suitable to reduce the anxiety of the patient; and, subjecting the patient to the surgery or medical procedure.