# US 11,994,506 B2 · Multi-dimensional data acquisition and analysis system for placenta tissue

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- Number: US 11,994,506 B2
- Document ID: US11994506B2
- Status: Granted
- Kind: B2
- Application number: 18/472,451
- Filed: 2023-09-22
- Published: 2024-04-25
- Granted: 2024-05-28
- Earliest claimed: 2022-10-20
- Assignees: East China Normal University
- Applicants: East China Normal University
- Inventors: Qingli Li
- Web page: https://patentgrep.com/patent/US11994506B2

## CPC

- G01N 33/4833: {of solid biological material, e.g. tissue samples, cell cultures (tissue in vivo A61B5/00; cell suspensions G01N33/48735)}
- A61B 5/1075: {for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer (A61B8/0858 takes precedence)}
- A61B 5/1079: {using optical or photographic means}
- A61B 90/00: Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- G01N 33/48: Biological material, e.g. blood, urine (G01N33/02, G01N33/26, G01N33/44, G01N33/46 take precedence); Haemocytometers (counting blood corpuscules distributed over a surface by scanning the surface G06M11/02)
- G01N 33/483: Physical analysis of biological material
- G06T 7/0012: {Biomedical image inspection}
- G06V 10/12: Details of acquisition arrangements; Constructional details thereof
- G06V 30/2247: {Characters composed of bars, e.g. CMC-7}
- A61B 2562/0247: Pressure sensors
- G06T 2207/10036: Multispectral image; Hyperspectral image
- G06T 2207/30024: Cell structures in vitro; Tissue sections in vitro
- G06V 10/58: relating to hyperspectral data
- G06V 2201/03: Recognition of patterns in medical or anatomical images
- Y02A 40/10: in agriculture
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A multi-dimensional data acquisition and analysis system for placenta tissue is provided, including a preparation area, a sampling area, a tension cable, a mobile platform, a tray, a mobile cabin door, a cabin door motor, a motor, a motor controller, binocular vision cameras, a laser point cloud detector, a hyperspectral camera, an ultrasonic ranging, a lifting motor, a lifting guide rail, ring light sources, an infrared sensor, a two-dimensional code area and a two-dimensional code identification camera. The technical scheme of the disclosure is adopted to solve the problem of lack of effective technical means for placenta detection at present.

## Claims

### Claim 1

A multi-dimensional data acquisition and analysis system for placenta tissue, comprising a preparation area, a sampling area, a tension cable, a mobile platform, a tray, a mobile cabin door, a cabin door motor, a motor, a motor controller, binocular vision cameras, a laser point cloud detector, a hyperspectral camera, an ultrasonic ranging sensor, a lifting motor, a lifting guide rail, ring light sources, an infrared sensor, a two-dimensional code area and a two-dimensional code identification camera; wherein
in a process of data acquisition, when the infrared sensor detects a placenta placed on the mobile platform, the mobile cabin door automatically opens under a control of the motor controller, and the motor drives the tension cable to pull the mobile platform into the sampling area, then the motor controller controls the cabin door motor to close the cabin door, turns on the ring light sources, starts the two-dimensional code identification camera to scan a two-dimensional code on the tray, starts the hyperspectral camera and the binocular vision cameras to collect data, and starts the laser point cloud detector and the ultrasonic ranging sensor to scan at a same time; after all data are acquired, the motor controller controls the cabin door motor to open the cabin door, and the motor drives the tension cable to pull the mobile platform out of the sampling area and return to the preparation area; when samples are collected in the sampling area, the two-dimensional code identification camera scans the two-dimensional code area on the tray at a same time to obtain information of the collected placenta; the lifting motor drives the hyperspectral camera, the binocular vision cameras, the laser point cloud detector and the ultrasonic ranging sensor to move up and down along the lifting guide rail to meet measurement requirements of samples with different sizes;
the system also comprises a housing, and a lower half part of the housing is divided into the preparation area and the sampling area; an upper surface of the preparation area is provided with a preparation area guide rail, and the mobile platform is embedded into the preparation area guide rail through rollers; a first movable pulley is arranged at an outer corner of the preparation area, and the motor and the motor controller are arranged inside the preparation area; an upper surface of the mobile platform is provided with a groove, the tray is placed on the groove, and a tested placenta sample is placed on the tray; the upper surface of the mobile platform is provided with a standard color card and scale marks; the two-dimensional code area is on an upper surface of the tray; the sampling area is provided with the mobile cabin door near the preparation area guide rail, the infrared sensor is arranged on the mobile cabin door, and the mobile cabin door is connected with the housing of the sampling area through a cabin door slide rail; an upper end of the sampling area is provided with a touch screen and a level meter; an outer side surface of the sampling area is provided with a wiring channel; the lifting guide rail is arranged at a center of a top side inside the sampling area, the lifting motor is arranged on the lifting guide rail, a first set of camera connecting rods is fixedly arranged at a first end of the lifting motor and a second set of camera connecting rods is fixedly arranged at a second end of the lifting motor, and the binocular vision cameras are arranged at both ends of each respective set of the camera connecting rods, the hyperspectral camera is arranged at a lower side of a middle position of the camera connecting rods, and the laser point cloud detector is fixedly attached to the first set of camera connecting rods and is arranged on one side of the hyperspectral camera and the ultrasonic ranging sensor is fixedly attached to the second set of camera connecting rods and is arranged on the other side of the hyperspectral camera; the ring light sources are installed in a circumferential direction at an inner side of the sampling area near a top position, a sampling area guide rail is arranged at a lower half part inside the sampling area parallel to the preparation area, a pressure sensor is arranged below the sampling area guide rail, and the pressure sensor is fixed at both ends within the inner side of the sampling area; a second movable pulley and a third movable pulley are installed at the inner side of the sampling area, and the tension cable is wound between the motor, the first movable pulley, the second movable pulley and the third movable pulley, and the tension cable is respectively connected to the two ends of the mobile platform.

### Claim 2 (depends on 1)

The multi-dimensional data acquisition and analysis system for placenta tissue according to claim 1, wherein a bottom surface inside the sampling area is provided with a wireless transmission module and a main control board; a bottom surface of the housing is provided with height-adjustable brackets; the wireless transmission module is in wireless connection with a smart phone and a trigger pedal; a control input end of the motor is connected to an output end of the motor controller, and the output end of the motor controller is connected to a control output end of the main control board; a data transmission end and a control end of the wireless transmission module are respectively connected to a data transmission end and a control end of the main control board; a signal output end of the infrared sensor is connected to a data input end of the main control board; a control input end of the cabin door motor is connected to the control output end of the main control board; the touch screen is connected with the main control board; data output ends of the binocular vision cameras are connected to the data input end of the main control board; a data output end of the hyperspectral camera is connected to the data input end of the main control board; output ends of the laser point cloud detector, the ultrasonic ranging sensor and the two-dimensional code identification camera are respectively connected to the input end of the main control board; input ends of the ring light sources are connected to the output end of the main control board.

### Claim 3 (depends on 2)

The multi-dimensional data acquisition and analysis system for placenta tissue according to claim 2, wherein the hyperspectral camera is one of a push-broom camera, a staring camera or a snapshot camera.

### Claim 4 (depends on 3)

The multi-dimensional data acquisition and analysis system for placenta tissue according to claim 3, wherein bar codes are placed in the two-dimensional code area.

### Claim 5 (depends on 3)

The multi-dimensional data acquisition and analysis system for placenta tissue according to claim 3, wherein the mobile platform is driven by a conveyor belt to move down into the sampling area or move out to the preparation area.

### Claim 6 (depends on 5)

The multi-dimensional data acquisition and analysis system for placenta tissue according to claim 5, wherein the tray is a disposable transparent material tray.