Yards Moving Forward - GL Group
Yards Moving Forward - GL Group Yards Moving Forward - GL Group
UNDERWATER TECHNOLOGY New Chances for Recovery Ultramodern Hyperbaric Chamber Inaugurated in Stockholm. The clinical pictures are diverse: wounds that will not heal, carbon monoxide poisoning, caisson disease (“the bends”), bacterial infections etc. Oxygen therapy promises relief and recovery. But where? In the world’s most modern hyperbaric treatment chamber! The “New Intensive Care Hyperbaric Chamber System” of the Karolinska University Hospital in Stockholm was recently certified by Germanischer Lloyd “Hyperbaric oxygenation” (HBO) is the technical term for the special therapy with which patients have been treated since April 2006 in the new pressure chamber facility of Karolinska Hospital. Here they breathe in oxygen under an increased ambient pressure, which exerts a positive effect on the healing process. The pressure difference in the chamber enables the body to absorb much more oxygen than under normal atmospheric pressure. The “New Intensive Care Hyperbaric Chamber System” in the Stockholm University Hospital consists of four pressurized chambers with a total volume of more than 120 m 2 . Each pair can be used independently of the other, which means that several intensive-care patients can be accommodated at the same time. With an internal width of 3.5 m and a length of about 15 m, the chamber offers a maximum pressure of 3 bar. Owing to its size and its weight of 105 tonnes, it was only possible to install the hyperbaric chamber in a new building of the hospital. Modern technology makes it possible for the breathing system to be used under atmospheric pressure as well. Elaborate Certification Karsten Hagenah at Germanischer Lloyd examined the design drawings, supervised construction on site with sup- CERTIFICATION IN THE MEDICAL ENGINEERING INDUSTRY AND IN HEALTH CARE MEDCERT offers the testing and certification of quality management systems and medical products as per DIN EN ISO 13485, as well as the European directives on medical devices and active implants. The company’s range of services also includes the examination of electrical safety in its own laboratory. Medical products that pass a conformity assessment procedure by MEDCERT may be recognized by the MED- CERT identification number “0482” after the CE mark. Established in 1993, the firm today has a clientele which chiefly includes manufacturers and distributors of medical devices, and also medical technology practitioners, e.g. dental laboratories, orthopaedic workshops, opticians and audiologists as well as dialysis centres and service providers in clinics. A staff of 15 is employed at the company’s Hamburg office. Germanischer Lloyd Certification holds a 50% interest in MEDCERT. For further information: Dipl.-Ing. Klaus-Dieter Ziel, Managing Director, Phone +49 40 36951-7982, info@medcert.de, www.medcert.de 42 nonstop 3/2006 port from Eberhard Währer and Markus Bianchi from the GL subsidiary MEDCERT and also subjected the medical installation to numerous functional tests. The hyperbaric chamber facility, built by Haux-Life-Support in Germany, was tested for compliance with the specifications of Karolinska University Hospital and with respect to the European standard EN 14931 “Safety Requirements and Testing Methods for Hyperbaric Chambers” as well as the Guidelines for Diving Systems and Diving Simulators of Germanischer Lloyd. During the practical acceptance test of the pressure chamber, all safety-related aspects were inspected for their functionality and operational reliability. In particular, the specially designed fire-extinguishing system and the medical equipment installed in the pressurized treatment room were examined with regard to their safety properties under a wide range of pressures. Aesthetics Helps to Heal Not only does the Stockholm chamber facility offer diverse possibilities for treatment, it could also win a design prize. Unlike “normal” hyperbaric chambers, the shape of the new unit is not composed only of circles – nor does it look like a typical pressure vessel. Once inside, the patients feel as if they were in a normal hospital room. Thanks to the large windows, Installing the pressure chamber in its own specially designed building
Hard work – Karsten Hagenah busy with one of the many functional tests (here shortly before the test of the fire-extinguishing system). which let in lots of light, and a normal door instead of a round access hatch, the anxieties of claustrophobic patients do not manifest themselves in the first place. This enhances the success rate of the treatment. As an added extra, the built-in multimedia suite ensures a pleasant stay. With the handing-over of the hyperbaric chamber to the hospital, Karsten Hagenah’s job is far from finished. From now on, his agenda will include annual excursions to Stockholm, since the manufacturer of the hyperbaric chamber prescribes regular safety checks. In addition, the University Hospital requires a comprehensive warranty inspection after three years of operation. Whilst the annual tests cover the entire functionality, system control and technical safety, the warranty inspection also examines in detail whether the specified performance characteristics and the system properties are still ensured. ■ SN For further information: Karsten Hagenah, Head of Department, Underwater Technology, Tel.: +49-40-36149-9205, karsten.hagenah@gl-group.com The hyperbaric chamber looks nothing like a typical pressure vessel UNDERWATER TECHNOLOGY TEST PASSED, 700 TIMES Over 700 manned pressure chamber systems have been tested by Germanischer Lloyd in the past ten years alone. But not all pressure chambers are the same. The GL experts have examined the safety of hyperbaric chambers for intensive care in the medical sector, and also diver’s pressure chambers, construction locks and altitude simulation units (hypobaric chambers). Particular attention is paid not only to the actual manufacture of the pressure vessel but also to the functional safety of the entire plant, including its supply systems. WHICH REGULATION? Germanischer Lloyd tests and examines pressure chambers according to the following guidelines and regulations: • Germanischer Lloyd, Rules and Guidelines, I Offshore Technology, 5 Underwater Technology, 1 Diving Systems and Diving Simulators • EN 14931 Pressure vessels for human occupancy (PVHO) – Multi-place pressure chamber systems for hyperbaric therapy – Performance, safety requirements and testing • DIN 13256-3 Pressure vessels for human occupancy – Part 3: Fire extinguishing systems in pressure vessels; Safety requirements and testing • Medical Device Directive 93/42/EEC • Pressure Equipment Directive 97/23/EC • Compressed Air Ordinance • ASME PVHO-1 Safety Standard for Pressure Vessels for Human Occupancy • National Fire Protection Association NFPA 99 EN 14931 describes the minimum technical requirements for multiperson pressure chambers and is the first European standard on pressure chambers for medical therapy. It was published in August 2005. As Chairman of the standardization committee, Harald Pauli, Head of the Pressure Vessels / Underwater Technology Department at Germanischer Lloyd, played a major role in the development of the standard. nonstop 3/2006 43
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Hard work – Karsten Hagenah busy with one of the many functional tests (here shortly before the test of the fire-extinguishing system).<br />
which let in lots of light, and a normal door instead of a round<br />
access hatch, the anxieties of claustrophobic patients do not<br />
manifest themselves in the first place. This enhances the success<br />
rate of the treatment. As an added extra, the built-in multimedia<br />
suite ensures a pleasant stay.<br />
With the handing-over of the hyperbaric chamber to the<br />
hospital, Karsten Hagenah’s job is far from finished. From now<br />
on, his agenda will include annual excursions to Stockholm,<br />
since the manufacturer of the hyperbaric chamber prescribes<br />
regular safety checks. In addition, the University Hospital<br />
requires a comprehensive warranty inspection after three<br />
years of operation. Whilst the annual tests cover the entire<br />
functionality, system control and technical safety, the warranty<br />
inspection also examines in detail whether the specified<br />
performance characteristics and the system properties are<br />
still ensured. ■ SN<br />
For further information: Karsten Hagenah, Head of Department, Underwater Technology,<br />
Tel.: +49-40-36149-9205, karsten.hagenah@gl-group.com<br />
The hyperbaric chamber looks nothing like a typical pressure vessel<br />
UNDERWATER TECHNOLOGY<br />
TEST PASSED, 700 TIMES<br />
Over 700 manned pressure chamber systems have been tested by<br />
Germanischer Lloyd in the past ten years alone. But not all pressure<br />
chambers are the same. The <strong>GL</strong> experts have examined the safety of<br />
hyperbaric chambers for intensive care in the medical sector, and also<br />
diver’s pressure chambers, construction locks and altitude simulation<br />
units (hypobaric chambers). Particular attention is paid not only to the<br />
actual manufacture of the pressure vessel but also to the functional<br />
safety of the entire plant, including its supply systems.<br />
WHICH REGULATION?<br />
Germanischer Lloyd tests and examines pressure chambers according<br />
to the following guidelines and regulations:<br />
• Germanischer Lloyd, Rules and Guidelines, I Offshore<br />
Technology, 5 Underwater Technology, 1 Diving Systems and<br />
Diving Simulators<br />
• EN 14931 Pressure vessels for human occupancy (PVHO) –<br />
Multi-place pressure chamber systems for hyperbaric therapy –<br />
Performance, safety requirements and testing<br />
• DIN 13256-3 Pressure vessels for human occupancy – Part 3:<br />
Fire extinguishing systems in pressure vessels; Safety requirements<br />
and testing<br />
• Medical Device Directive 93/42/EEC<br />
• Pressure Equipment Directive 97/23/EC<br />
• Compressed Air Ordinance<br />
• ASME PVHO-1 Safety Standard for Pressure Vessels for Human<br />
Occupancy<br />
• National Fire Protection Association NFPA 99<br />
EN 14931 describes the minimum technical requirements for multiperson<br />
pressure chambers and is the first European standard on<br />
pressure chambers for medical therapy. It was published in August<br />
2005. As Chairman of the standardization committee, Harald Pauli,<br />
Head of the Pressure Vessels / Underwater Technology Department at<br />
Germanischer Lloyd, played a major role in the development of the<br />
standard.<br />
nonstop 3/2006 43
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