公开(公告)号：US20210041364A1

公开(公告)日：2021-02-11

申请号：US17081757

申请日：2020-10-27

Applicant: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.

Inventor： Qiushi YI ,  Dongsheng WANG ,  Yong DAI

IPC: G01N21/64 ,  G01N21/47

Abstract: An optical detection system, a blood cell analyzer and a platelet detection method are provided. The optical detection system includes: an optical subsystem, a flow chamber and a first detector; the optical subsystem includes a laser, a front optical assembly including an optical isolator, and a rear optical assembly including a blocking diaphragm. The laser is configured to emit a laser beam; the front optical assembly is configured to perform front optical treatment; the rear optical assembly is disposed downstream of the flow chamber in the propagation direction of the laser beam, and is configured to perform rear optical treatment on the scattered light and the laser beam converged at the blocking diaphragm; and the optical isolator is configured to isolate reflected light that is generated when the laser beam passes through the flow chamber.

公开(公告)号：US20200309670A1

公开(公告)日：2020-10-01

申请号：US16848701

申请日：2020-04-14

Applicant: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.

Inventor： Xiansuan DU ,  Yong DAI

IPC: G01N15/14 ,  G01N21/47 ,  G01N21/64

Abstract: A sample analyzer with an optical detection device and a sample analysis method of the sample analyzer are disclosed. The optical detection device includes a fluid chamber, a light source and a light detector. The fluid chamber includes an illumination zone. An analyte flows through the illumination zone so as to form a sample stream. The light source illuminates the illumination zone to excite cell articles, reacted with a reagent, of the sample stream to emit a light signal. The light detector detects the fluorescent lights and transforms it into an electric signal. The light detector can include a silicon photomultiplier.