Chest Compressors: Simplifying CPR in Tight Spaces

Researchers evaluate chest compressors on aircraft dummies

CNES

Due to the challenges of microgravity, tasks as simple as eating or showering become complex, making CPR on individuals who stop breathing in space a highly specialized process. However, experiments in simulated microgravity indicate that mechanical devices may perform more efficiently.

On Earth, weight and muscle strength aid in compressing a patient’s chest, but this principle shifts entirely in space where weight is nearly negligible.

NASA’s CPR protocol for the International Space Station dictates that patients must be compressed between two rigid surfaces while being positioned upside down and providing pressure with the feet.

Seeking a more effective approach, Nathan Raynett from the University of Lorraine along with his team assessed various CPR techniques aboard a parabolic flight on an Airbus A310. They also investigated three different chest compressors typically used in ground ambulance settings.

All methods were administered to training dummies, with a focus on measuring the depth of chest compressions. The European Council on Resuscitation states that a minimum compression depth of 50 mm is essential for effectiveness. In the experiments, the optimal mechanical devices achieved depths of 53 mm, whereas the upside-down method only managed 34.5 mm.

The findings will be presented at the European Heart Association Conference in Madrid on August 31st. Reynette and his colleagues expressed their hope that the research could influence future CPR guidelines in space.

Astronauts rehearse chest compression techniques during emergency drills on the International Space Station

JSC/NASA

Aaron Parkhurst from University College London notes that current CPR methods are challenging to apply in space, highlighting a need for enhancements. “In zero gravity, conducting CPR would likely present significant challenges and yield poor outcomes,” he explains. “This new technique seems promising in addressing those concerns.”

As space travel becomes increasingly frequent, the chances of cardiovascular emergencies in orbit rise, particularly as astronauts are not always physically optimal, as Parkhurst points out. “The strain of launching into space can be taxing on the heart, while prolonged exposure to microgravity impacts the cardiovascular system adversely.”

A NASA representative stated: “Currently, manual compression remains the standard CPR method used on the International Space Station. NASA mitigates the need for CPR through comprehensive medical screenings of astronauts and strong engineering safeguards. Research on CPR machines in microgravity has not been extensively conducted, particularly concerning human missions to the Moon, Mars, and beyond.”

topic:

  • heart/
  • Space exploration

Source: www.newscientist.com

Researchers recommend making keeping spaces clean and tidy a global UN goal.

Artist’s impression of space junk orbiting Earth

Mark Garlick/Science Photo Library/Alamy

The growing threat of space debris should be addressed with a new global agreement to protect Earth’s orbit, says a group of researchers calling on the United Nations to make space protection a key international goal.

Although there are existing guidelines for tackling space debris, such as the 1967 United Nations Outer Space Treaty, the researchers write in the journal: one earth calls for further action to “raise awareness about the use of orbital resources and the increased risk of orbital contamination while sending a strong message that Earth’s orbit is not disconnected from Earth.”

Specifically, the research team proposes adding space protection to the United Nations’ existing Sustainable Development Goals (SDGs). The SDGs are 17 broad goals set for member countries to achieve by 2030. These goals include eradicating poverty, promoting quality education and gender equality, accessing affordable and clean energy, and tackling climate change. “We know from the ocean that it is very difficult to remove debris that has washed ashore,” Koldewey said. “We want to avoid the same thing happening in space.”

To fix this, the researchers want to add 18.th The SDGs include ensuring that end-of-life satellites and rockets are removed from orbit to prevent collisions and the creation of new debris, as well as introducing fines and legislation to ensure accountability. “We know from the ocean that it is very difficult to remove debris that has washed ashore,” Koldewey said. “We want to avoid the same thing happening in space.”

The number of operating satellites in orbit has increased rapidly in recent years, from less than 3,000 in 2020 to more than 10,000 today. Most of that increase will come down to the roughly 7,000 satellites that make up SpaceX’s Starlink space internet megaconstellation. Other companies and countries, including Amazon and China, are planning thousands more services while building large groups of their own. In addition to this, there are thousands of empty rockets and millions of pieces of space junk orbiting the Earth.

Include space debris in 18th says the SDGs have the potential to raise the profile of issues Heather Koldeway At the Zoological Society of London. “Anything that raises awareness of space debris has to be good,” he says. But he says getting countries to act is more difficult. “If you roll 18th SDGs, what’s next?” he says. “All international agreements and treaties are products of compromise.”

Hugh Lewis A space debris expert at the University of Southampton in the UK said creating a space-focused SDG would be a “worthy endeavour.” However, he added that mechanisms to tackle space debris, such as the United Nations long-term sustainability goals For space activities and more localized activities, such as in the United States, where the Federal Communications Commission has introduced. 5 year rule Removing dead satellites from orbit. “It’s hard to argue that it’s not already on the UN agenda,” Lewis says.

There is also the question of whether the SDGs will achieve their goals. Last year, the United Nations reported: less than one-fifth Of the 17 existing SDGs, progress is on track.

On top of that, the problem is that nothing meaningful will happen without the agreement of SpaceX and its owner Elon Musk. “You can’t talk about space governance without talking about it now,” Newman said. “We can no longer just look at member states.”

topic:

Source: www.newscientist.com

Morpheus Space’s new space mission design platform is user-friendly for everyone.

Space propulsion developer Morpheus Space today announced its first software product, a mission simulation and design platform called Journey.

Morpheus product manager Jim Gianakopoulos said in a recent interview (and in a recent product walkthrough) that the product has been in the works for nearly two years. This was born out of the typical thruster sales process. Customers come to Morpheus to ask if the startup’s lineup of electric propulsion systems can meet their mission requirements. However, the process is highly technical, fragmented, and manual.

“We found that to be a deterrent,” Giannakopoulos said. “Just by giving the user a place of control to actually simulate the entire mission themselves, analyze and refine it, and see what kind of propulsion system fits, it empowers them. Masu. [their] needs. “

Journey aggregates all the data typically spread across Excel sheets, Python, and other systems and quickly spits out mission and system designs. The software allows customers to input measurements, operations, launch dates, and other requirements for a custom system. The software is designed to be easy to use, even for non-technical users, with templates for common attributes such as satellite size.

In particular, the Journey platform does more than just match customers to Morpheus’ unique propulsion system. Depending on mission requirements, we may also recommend third-party chemical propulsion systems and various subsystems such as attitude determination, control systems, and communications.

The platform’s first product is called Preliminary Mission Design (PMD), and the company also plans to roll out a higher-fidelity Advanced Mission Design (AMD). The platform is designed to support customers from mission conception through end-of-orbit operations.

Morpheus has five to six early customers who are using PMD products to inform early mission and system designs. AMD plans to release a closed beta within the next two weeks. Morpheus was founded in 2018 with offices in Germany and El Segundo, California. Last September, the company closed its $28 million Series A round led by Alpine Space Ventures.

Source: techcrunch.com