| 发明名称 | Suction device | ||
| 摘要 | The invention relates to a suction device for suctioning liquids, comprising a suction element, which is provided with at least one suction opening for receiving the liquid, and a pump which is connected to the suction element and which is equipped to generate a suction vacuum in the suction element, wherein a control device and at least one sensor which is connected to the control device are provided, wherein the control device is equipped to influence the suction power acting at the suction opening dependent on the signals received from the sensor.;The object of the invention is to provide a suction device for suctioning liquids, said device working with greater efficiency than known suction devices. Additionally, there is a requirement in the medical field to provide a medical suction device which to the greatest possible extent prevents the damage that occurs to blood components during automatic operation.;This object is achieved by the fact that the sensor is designed as an acoustic wave sensor. The acoustic wave sensor is equipped to detect acoustic waves which are generated by the suction element during the operation thereof. | ||
| 申请公布号 | US9402937(B2) | 申请公布日期 | 2016.08.02 |
| 申请号 | US201113978429 | 申请日期 | 2011.12.15 |
| 申请人 | Georg-August-Universitaet Goettingen Stiftung Oeffentlichen Rechts (Universitaetsmedizin) | 发明人 | Friedrich Martin |
| 分类号 | A61M1/00;A61M5/178;A61M5/00;A61M35/00;A61F13/00;A61F13/02 | 主分类号 | A61M1/00 |
| 代理机构 | Whitham, Curtis & Cook, P.C. | 代理人 | Whitham, Curtis & Cook, P.C. |
| 主权项 | 1. A suction device for suctioning liquids, comprising: a suction element, which is provided with at least one suction opening for receiving the liquid; a pump which is connected to the suction element and which is equipped to generate a suction vacuum in the suction element; a control device; and at least one sensor which is connected to the control device, wherein the control device is equipped to influence suction power acting at the at least one suction opening of the suction element dependent on signals received from the sensor, wherein the at least one sensor is an acoustic wave sensor which is equipped to detect acoustic waves which are generated by the suction element, wherein an output signal of the at least one sensor is fed to a preamplifier and then to a noise gate which provides an adjustable delay and an adjustable response threshold so as to establish an acoustic wave intensity and an acoustic wave duration starting from which the suction power is to be influenced by the control device. | ||
| 地址 | Goettingen DE | ||