Patent ID: 11872079
Assignee: KUNSHAN IMAGENE MEDICAL CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A  Y | IPC A

Claim 12:
13. The ultrasound scanning device of claim 12, wherein the converting initial position coordinates of the part to be examined in the first coordinate system where the hospital bed is located into initial position coordinates of the part to be examined in the second coordinate system where the ultrasound scanning device is located comprises:
calculating a conversion matrix Rtrans between the first coordinate system and the second coordinate system;
calculating the initial position coordinates of the part to be examined in the second coordinate system where the ultrasound scanning device is located by using a formula p1=Rtrans p0+ptrans according to the conversion matrix Rtrans;
wherein p1 represents an initial position vector of the part to be examined in the second coordinate system, Rtrans represents the conversion matrix between the first coordinate system and the second coordinate system, p0 represents an initial position vector of the part to be examined in the first coordinate system, and ptrans represents a position vector of an origin of the first coordinate system relative to the second coordinate system.