Saturday July 21, 2018

A New Tool May Aid Patients To Detect Urine Blockage

Surgeons are developing a new smartphone-based tool that can detect urethral or urine blockage, potentially making it easier for patients to test themselves for the condition from the comfort of their own homes.

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Surgeons are developing a new smartphone-based tool that can detect urethral or urine blockage, potentially making it easier for patients to test themselves for the condition from the comfort of their own homes.

The novel technique could take high-speed photography which could capture subtle differences between a normal steady stream of liquid and a stream of liquid with an obstruction.

Urethral strictures are a slowing or blocking of the natural flow of urine due to an injury or infection. It is normally diagnosed by uroflowmetry, a test administered at a physician’s office.

“The problem is that patient follow-up after we treat this condition is very poor,” said Matthew Gretzer, Associate Professor at the University of Arizona in the US.

“But we need patients to come back to our clinic for a uroflow test to determine if the obstruction is still present,” he added.

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In order to test Gretzer’s hypothesis on high-speed photography, the team created a model of a urethral structure using tubing hooked to a saline bag that could drain through.

Saline fluid was passed through the tubing with and without blockages, created using 3D printed strictures, placed within the tubing. High-speed photography captured both the regular and blocked stream of liquid exiting the tube.

Gretzer contended that photos can be a medium to diagnose blockages and he hopes that patients could send him these images to analyse and make the diagnosis. He plans to create a mobile app which can be downloaded by the patients.

“All patients would need to do is take high-speed images of their urine flow using a strobe light,” Gretzer said.

“Strobe light apps are readily available right now for people to use on their phones”.

Also Read: Astronauts from Clemson University in US Believe Human Urine Can Help Safer Space Travel

According to the researchers, as fluid exits an opening, a natural breakpoint occurs where the liquid stream forms droplets, but with obstructions in place, it changes.

The results showed that by analysing photos, they could measure the length to this point of droplet formation. This length then directly related to the presence of an obstruction in the tube. (IANS)

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India Is Developing Technologies To Launch Manned Mission

The state-run ISRO’s technology demonstrator is the first in a series of tests to qualify as a crew escape system, critical for a manned mission.

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India’s dream to put a man in space
India’s dream to put a man in space. Pixabay

India is developing critical technologies for launching manned missions in space and preparing a document on it, a top official said on Saturday.

“Critical technologies are being developed for our human space programme as it is India’s dream to put a man in space. A mission document is in the making,” Indian Space Research Organisation (ISRO) Chairman K. Sivan told the media at an aerospace event here.

Citing the space agency’s successful maiden unmanned pad abort test on Thursday at its Sriharikota spaceport in Andhra Pradesh for the safe escape of the crew in an emergency, Sivan said that very complex technology was used for the trial, with a unique motor for fast-burning.

“The technology is very essential for our manned missions in the future, as the motor’s performance was very good. Using aerodynamics, the module was turned in a favourable direction to open the parachutes,” he said.

The state-run ISRO’s technology demonstrator is the first in a series of tests to qualify as a crew escape system, critical for a manned mission.

“We are only in the preparation stage. We need to develop much more. We are in the process of refining a document on the manned mission for review and interactions with stakeholders, including the Indian Air Force (IAF) and Hindustan Aeronautics Ltd (HAL),” said Sivan.

The crew escape system is an emergency escape measure designed to quickly pull the crew module along with the astronauts to a safe distance from the launch vehicle in the event of a launch abort.

The first pad abort test demonstrated the safe recovery of the crew module in case of any exigency at the launch pad,” ISRO said in a statement earlier.

Admitting that the scientists had to work on the next strategy for the manned mission testing, Sivan said ISRO’s work was two-pronged, with one on approved projects and the other for research and development (R&D).

The first pad abort test demonstrated the safe recovery of the crew module in case of any exigency at the launch pad,” ISRO said in a statement earlier.
The first pad abort test demonstrated the safe recovery of the crew module in case of any exigency at the launch pad,” ISRO said in a statement earlier. Flickr

“The pad abort test for the crew escape system is part of our R&D work,” he noted. The space agency also tested five new technologies during the pad abort test, as part of its strategy to develop long-term technologies.

“We and the government work on a three-year plan, with a seven-year strategy and a 15-year vision,” asserted Sivan.

Noting that space tourism would happen in the near future, the rocket scientist said it would take at least 15 years to develop the vehicle to go to space and return to the earth.

“We are not close to that. We need to work a lot towards achieving the dream of putting a man into space,” added Sivan.

After a five-hour countdown, the crew escape system lifted off with the 12.6 tonne simulated crew module from the spaceport and plunged into the sea (Bay of Bengal) 4 minutes and 19 seconds later with two parachutes, around 2.9 km away from Sriharikota, about 90km northeast of Chennai.

Also read: NASA Scientists Map Water on Moon Using India’s Chandrayaan-1 Spacecraft!

“The crew module soared 2.7 km altitude on thrust of its seven solid motors without exceeding the safe G (gravity) levels,” added the statement. (IANS)