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JET PUMP FOR NONCONTACT TONOMETRY AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS
专利权人:
Verily Life Sciences LLC
发明人:
Amir Samakar
申请号:
US16820315
公开号:
US20200300236A1
申请日:
2020.03.16
申请国别(地区):
US
年份:
2020
代理人:
摘要:
Pumps for noncontact tonometry are provided. In one embodiment, a pump for noncontact tonometry includes a compression pump, a compression chamber, a first pressure sensor in communication with the compression chamber, a surge chamber, and a valve separating the compression chamber and surge chamber. The compression pump compresses a first volume of gas into the compression chamber. When the first pressure sensor detects a threshold pressure in the compression chamber, the valve opens and releases the gas into a surge chamber, where it combines with a gas residing in the surge chamber to form a puff of gas that escapes from the surge chamber through a flow-limiting nozzle. The components of the pump, which relies on passive rather than active components to create the controlled puff, can be assembled to have a profile that is portable and fit for home use.
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