| US3799173A (en)* | 1972-03-24 | 1974-03-26 | J Kamen | Tracheal tubes |
| US4274417A (en)* | 1978-09-22 | 1981-06-23 | National Research Development Corporation | Instruments for use in the measurement of gases in body fluids |
| US4327720A (en)* | 1979-01-22 | 1982-05-04 | Bronson Paul A | Esophageal-endotracheal airway |
| JPS59502134A (en)* | 1982-10-08 | 1984-12-27 | ハ−ドキャッスル、ディビッド | Opening device to body cavity |
| CN102429641B (en)* | 2011-08-24 | 2013-07-31 | 江苏省人民医院 | Rectal injury discriminator |
| CN109173013A (en)* | 2018-06-26 | 2019-01-11 | 郑州大学第附属医院 | A kind of de- biliary stent of the anti-work of sacculus |
| CN111529334B (en)* | 2020-05-16 | 2022-08-02 | 朱传英 | Emergency internal medicine department vomitus-promoting device |