{"id":{"repo_id":"buffalo","oai_identifier":"oai:ubir.buffalo.edu:10477/86773"},"canonical_url":"https://search.dev.ndltd.org/etd/buffalo/oai:ubir.buffalo.edu:10477/86773","repository":{"repo_id":"buffalo","name":"Buffalo","base_url":"https://ubir.buffalo.edu/oai/request"},"display":{"title":"Nasal/Oral Automatic Sampling System in Oral/Maxillofacial Surgery","abstract":"M.Eng.","abstract_html":"M.Eng.","abstract_has_math":false,"creators":["Hao, Shangmiao"],"institution":"State University of New York at Buffalo","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Chen, James","Mechanical and Aerospace Engineering"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-02-21T21:44:57Z","date_published":"2025-02-21T21:44:57Z","updated_at":"2026-07-27T19:05:37Z","subjects":["design"],"languages":["eng"],"rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10477/86773","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Chen, James","Mechanical and Aerospace Engineering"]},{"key":"dc:creator","label":"Author","values":["Hao, Shangmiao"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-02-21T21:44:57Z","2020"]},{"key":"dc:publisher","label":"Institution","values":["State University of New York at Buffalo"]},{"key":"dc:type","label":"Dc Type","values":["Text","Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["design"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/10477/86773"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["M.Eng.","Capnography is a sensitive method to monitor end-tidal carbon dioxide (EtCO2) for a patient who is under general anesthesia. It can monitor a patient's ventilation during sedation accurately. However, in the oral and maxillofacial surgery, the patients must open their mouth. The capnography reading will be unreliable if the patient is a mouth breather since there is no cannula from the mouth. Potentially life-threatening, for example, hypoxia, for a patient will occur. The surgeon will not be able to notice immediately since the pulse oximetry (SpO2) can only measure arterial oxygen saturation instead of alveolar ventilation. Regarding to this problem, a new device/setup is conducted under the guidance of Dr. Chen and Dr. Au. This new design includes an Arduino board, two solenoid valves, two LED lights, one potentiometer, one four-digit seven-segment display, one four-position rotary switch, and three-way connector. This setup can automatically sample exhale gas from nose and mouth. Two different color LED lights indicate two cannula status, and two valves are used to close and open cannulas. Two cannulas connect to the capnography by a three-way connector. A potentiometer can change the rate of two valves close and open, and the rate value will show on the seven-segment display. The four-position rotary switch has three status – automatic, nasal cannula open, oral cannula open. Based on several experiments on capnography, it shows that the alarm will not be active within one sweep of the capnography's oscilloscope screen time, therefore, if the valve open and close delay time is the sweep screen time, capnography can have accurate EtCO2 value and the dentist can determine whether this patient is mouth or nose breather. The rotary switch can be used to change the status depends on the surgeon. More specific procedures will introduce in the following contents.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Nasal/Oral Automatic Sampling System in Oral/Maxillofacial Surgery"]}]}],"canonical_facts":{"dc:contributor":["Chen, James","Mechanical and Aerospace Engineering"],"dc:creator":["Hao, Shangmiao"],"dc:date":["2025-02-21T21:44:57Z","2020"],"dc:description":["M.Eng.","Capnography is a sensitive method to monitor end-tidal carbon dioxide (EtCO2) for a patient who is under general anesthesia. It can monitor a patient's ventilation during sedation accurately. However, in the oral and maxillofacial surgery, the patients must open their mouth. The capnography reading will be unreliable if the patient is a mouth breather since there is no cannula from the mouth. Potentially life-threatening, for example, hypoxia, for a patient will occur. The surgeon will not be able to notice immediately since the pulse oximetry (SpO2) can only measure arterial oxygen saturation instead of alveolar ventilation. Regarding to this problem, a new device/setup is conducted under the guidance of Dr. Chen and Dr. Au. This new design includes an Arduino board, two solenoid valves, two LED lights, one potentiometer, one four-digit seven-segment display, one four-position rotary switch, and three-way connector. This setup can automatically sample exhale gas from nose and mouth. Two different color LED lights indicate two cannula status, and two valves are used to close and open cannulas. Two cannulas connect to the capnography by a three-way connector. A potentiometer can change the rate of two valves close and open, and the rate value will show on the seven-segment display. The four-position rotary switch has three status – automatic, nasal cannula open, oral cannula open. Based on several experiments on capnography, it shows that the alarm will not be active within one sweep of the capnography's oscilloscope screen time, therefore, if the valve open and close delay time is the sweep screen time, capnography can have accurate EtCO2 value and the dentist can determine whether this patient is mouth or nose breather. The rotary switch can be used to change the status depends on the surgeon. More specific procedures will introduce in the following contents.","**To request an accessible version of the file(s) associated with this item, contact library@buffalo.edu. Please include the item's persistent URL [http://hdl.handle.net/. . .] in your request.**"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/10477/86773"],"dc:language":["eng"],"dc:publisher":["State University of New York at Buffalo"],"dc:rights":["Users of works found in University at Buffalo Institutional Repository (UBIR) are responsible for identifying and contacting the copyright owner for permission to reuse. University at Buffalo Libraries do not manage rights for copyright-protected works and cannot assist with permissions.","Copyright retained by author."],"dc:subject":["design"],"dc:title":["Nasal/Oral Automatic Sampling System in Oral/Maxillofacial Surgery"],"dc:type":["Text","Thesis"]},"updated_at":"2026-07-27T19:05:37Z"}