# US 12,762,974 B2 · Training system for hemorrhage treatment

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- Number: US 12,762,974 B2
- Document ID: US12762974B2
- Status: Granted
- Kind: B2
- Application number: 18/610,162
- Filed: 2024-03-19
- Published: 2025-03-06
- Granted: 2026-10-13
- Earliest claimed: 2023-08-28
- Assignees: Aix International Ltd.
- Applicants: Aix International Ltd.
- Inventors: Yu-Cheng Lin
- Web page: https://patentgrep.com/patent/US12762974B2

## CPC

- G09B 23/303: {specially adapted to simulate circulation of bodily fluids}
- G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)

## Abstract

The training system for hemorrhage treatment includes a control element, pulse width modulation (PWM) element, relay, motor element, water flow sensor element, water pressure sensor element, Bluetooth element, power supply, water reservoir, and simulated body. The control element controls the PWM element and receive signals from the water flow sensor element and water pressure sensor element. The PWM element receives control signals from the control element and sends them to the relay. The relay controls the operation of the motor element. The motor element transports fluid according to the control signals. The water flow sensor element detects flow rate, and the water pressure sensor element detects pressure values. The Bluetooth element is connected to the control element to facilitate mutual communication with a mobile device. This system simulates wound bleeding, enables emergency medical trainees to practice accurate hemostasis, provides feedback on correct operation, and achieves hemostatic effectiveness.

## Claims

### Claim 1

A training system for hemorrhage treatment, comprising a control element, a pulse width modulation (PWM) element, a relay, a motor element, a water flow sensor element, a water pressure sensor element, a Bluetooth element, a power supply, and a simulated body; wherein
the control element is electrically connected to the PWM element, water flow sensor element, water pressure sensor element, Bluetooth element, and power supply; the control element outputs control signals to the PWM element and receive signals transmitted by the water flow sensor element and the water pressure sensor element; the control element utilizes the Bluetooth element to mutually exchange signals with a mobile device;
the PWM element is electrically connected to the control element, relay, and power supply; the PWM element is used to receive control signals transmitted by the control element and to transmit the control signals to the relay;
the relay is electrically connected to the PWM element, motor element, and power supply; the relay is used to receive control signals transmitted by the PWM element and to control the motor element's operation based on the control signals;
the motor element is electrically connected to the relay and power supply; the motor element is also connected to the simulated body via a water supply pipe; the motor element transports fluid to the simulated body based on the control signals from the relay to simulate bleeding effects;
the water flow sensor element is electrically connected to the control element and power supply; the water flow sensor is used to detect a flow rate of the water supply pipe connected to the motor element and to transmit a detected flow rate signal back to the control element;
the water pressure sensor element is electrically connected to the control element and power supply; the water pressure sensor element is used to detect a pressure value of the water supply pipe connected to the motor element and to transmit a detected pressure signal back to the control element;
the Bluetooth element is electrically connected to the control element and power supply; the Bluetooth element is used to facilitate mutual communication and signal transmission between the control element and the mobile device; and
the power supply is electrically connected to the control element, PWM element, relay, motor element, water flow sensor element, water pressure sensor element, and Bluetooth element to provide electrical power,
wherein a servo motor is electrically connected to the control element and the power supply, and the servo motor simulates the pulsating of a pulse according to the control of the control element, wherein the operation of the motor element is controlled by the PWM element through the relay to transport fluid to the simulated body, while the servo motor is operable to simulate the pulsating.

### Claim 2 (depends on 1)

The training system for hemorrhage treatment according to claim 1, further comprising a water reservoir; wherein the water reservoir is used to store fluid and is connected to the water supply pipe of the motor element; and fluid outputted from the simulated body is recirculated and transported back to the water reservoir by the motor element.