Beyond One Health: Leveraging Last Mile Agriculture with Health

#### Advantages and Disadvantages of Agriculture and Healthcare Working Together

#### References


## **Oxysaver: A High Conservation Demand Oxygen Delivery System with Increased Throughput**

**Syed Razwanul Haque1, Dewan A. F. K Choudhury1 , Ju-un Choudhury1, Tanzilur Rahman1 , Shazzad Hossain Lelin1, Shovon Sudan Saha1, Meherun Nesa1, Ashrafuzzaman2, and Saif Ahmed Quarishi2** 1Bioforge Health System LTD, Dhaka, Bangladesh 2Military Institute of Science and Technology (MIST), Dhaka, Bangladesh

Oxygen has been an indispensable therapeutic drug. Patients with chronic lung disease rely on treatment involving supplemental oxygen. In light of the sudden surge in oxygen demand due to the COVID-19 pandemic, coupled with a lack of oxygen supply, new methods of oxygen delivery have been looked into as a possible solution. OxySaver, a novel demand oxygen delivery system proposed by Bioforge Ltd., is designed with the objective of reducing oxygen consumption significantly and cost-effectively. OxySaver seamlessly fits even low-resource settings. OxySaver can also serve multiple patients from a single source through multiplexing, which ensures maximizing the efficiency of usage. OxySaver includes a pressure sensor to detect the patient's demand, a solenoid valve for switching the supply on demand, and a processing unit. OxySaver is then attached to an oxygen cylinder with a flow meter. The subjects on the test have two cannulas attached to them, one coming from the oxygen cylinder and the other from OxySaver. When the patient inhales, the OxySaver allows oxygen to come out of the cylinder. During exhalation, the OxySaver ensures that the supply remains closed. Compared to conventional continuous oxygen flow, this saves oxygen, which would otherwise be lost during exhalation. The OxySaver prototype has been tested with a benchmarking tool on multiple subjects to ensure performance and reliability. The criteria set for testing were oxygen conservation rate, power efficiency, patient comfort, durability, and safety. The hours-long endurance tests indicated that OxySaver conserves 50% more oxygen compared to conventional methods. It requires no calibration and does not involve any discomfort. The oxygen flow shifts to continuous flow when the cannula becomes loose or a power outage occurs. OxySaver has passed all testing criteria to receive approval for a clinical trial. It has already received medical certification from a medical certification authority. OxySaver will improve the conservation of oxygen supplies, reduce costs for patients and improve hospital capacity for oxygen treatment. There is no risk in implementing this system in hospitals. Therefore, we strongly believe that the conservation of oxygen using Bioforge OxySaver will help meet COVID-19 or any future oxygen demand.

health systems ltd.

Building Better Healthcare

#### Authors

Syed Razwanul Haque1, Dewan A. F. K Choudhury1, Ju-un Choudhury1, Tanzilur Rahman1, Shazzad Hossain Lelin1, Shovon Sudan Saha1, Meherun Nesa1, Ashrafuzzaman2, and Saif Ahmed Quarishi2

1 Bioforge Health System LTD, Dhaka, Bangladesh 2 Military Institute of Science and Technology (MIST), Dhaka, Bangladesh

#### Prototype

*Figure 1.: OxySaver setup with cylinder.*

Bioforge proposes OxySaver, a novel, cost-effective Demand Oxygen Delivery System which can reduce oxygen consumption significantly. It includes a pressure sensor, a Normally Open solenoid valve, and a processing unit to ensure the supply of oxygen only during inhalation by the patients. It can be set up easily with existing oxygen cylinders and oxygen pipelines in hospitals. The device will improve the conservation of oxygen supplies, reduce costs for patients and improve hospitals' capacity for oxygen treatment.

#### Design

OxySaver Pressure Sensing Port

Flow Multiplexer

**O X Y S A V E R**

*Figure 2.: Cylinder duration test results with and without OxySaver.*

> Reduction in refill cost

67 %

Results

Requires only

power compared to current products

More oxygen conserved 50% From a single source, up to

#### patients 3 can receive oxygen at the same rate

### Impact of OxySaver

Adapts to breathing rate in real time; Reduces refill costs;

Readily available parts, affordability, reusability and easy production; Easy replacement;

Easy installation with the existing hospital oxygen distribution system.

#### Fail safes

