Instrument to test patency of lacrimal drainage system
The lacrimal drainage system drains fluid that exists normally on the surface of the eye into the nasal cavity. This paper describes a hand-held, personal-computer-based instrument to quantitatively estimate the resistance to fluid flow through the lacrimal drainage system. This resistance measureme...
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| Veröffentlicht in: | Journal of clinical engineering 1991-01, Vol.16 (1), p.57-60 |
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| container_title | Journal of clinical engineering |
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| creator | Stanley, C F Masri, F A |
| description | The lacrimal drainage system drains fluid that exists normally on the surface of the eye into the nasal cavity. This paper describes a hand-held, personal-computer-based instrument to quantitatively estimate the resistance to fluid flow through the lacrimal drainage system. This resistance measurement is proposed as a possible means to diagnose blockage of the system and to verify the degree of change in resistance after clinical treatment. The instrument system consists of a hand-held syringe attached to pressure and flow transducers. Resistance is calculated as the ratio of differential pressure to flow rate and is displayed in real time on a computer monitor. |
| doi_str_mv | 10.1097/00004669-199101000-00014 |
| format | Article |
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This paper describes a hand-held, personal-computer-based instrument to quantitatively estimate the resistance to fluid flow through the lacrimal drainage system. This resistance measurement is proposed as a possible means to diagnose blockage of the system and to verify the degree of change in resistance after clinical treatment. The instrument system consists of a hand-held syringe attached to pressure and flow transducers. 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This paper describes a hand-held, personal-computer-based instrument to quantitatively estimate the resistance to fluid flow through the lacrimal drainage system. This resistance measurement is proposed as a possible means to diagnose blockage of the system and to verify the degree of change in resistance after clinical treatment. The instrument system consists of a hand-held syringe attached to pressure and flow transducers. 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This paper describes a hand-held, personal-computer-based instrument to quantitatively estimate the resistance to fluid flow through the lacrimal drainage system. This resistance measurement is proposed as a possible means to diagnose blockage of the system and to verify the degree of change in resistance after clinical treatment. The instrument system consists of a hand-held syringe attached to pressure and flow transducers. Resistance is calculated as the ratio of differential pressure to flow rate and is displayed in real time on a computer monitor.</abstract><cop>United States</cop><pmid>10109831</pmid><doi>10.1097/00004669-199101000-00014</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0363-8855 |
| ispartof | Journal of clinical engineering, 1991-01, Vol.16 (1), p.57-60 |
| issn | 0363-8855 |
| language | eng |
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| source | MEDLINE; Journals@Ovid Complete |
| subjects | Biomedical Engineering Diagnosis, Computer-Assisted - instrumentation Equipment Design Health administration Humans Lacrimal Duct Obstruction - diagnosis Models, Statistical West Virginia |
| title | Instrument to test patency of lacrimal drainage system |
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