• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 引用文献
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  • 优先权
    • 专利摘要:
    Summary The invention relates to a sterile bank (1) with an operator space (3) with a blow-out opening (4) through which an operator reaches the interior of the operator space. The exhaust opening is delimited at its upper edge by a closing element (6) and the closing element (6) is provided at its lower edge with an edge element (5) which is angled from the upper part of the closing element (6). With such an edge element, reduced turbulence is achieved, which reduces the risk of contamination being drawn into the sterile bank. In an embodiment of the invention, the edge element (5) is so angled that it extends from the lower edge of the closure element (6) towards the interior of the sterile bank. In another embodiment of the invention, the edge member (5) is so angled that it projects from the lower edge of the closure member (6) from the interior of the sterile band.
    公开号:SE538104C2
    申请号:SE1400430
    申请日:2014-09-12
    公开日:2016-03-01
    发明作者:Bo Dolk-Petersson
    申请人:Qleanair Scandinavia Ab；
    IPC主号:
    专利说明:

    The present invention relates to a sterile bank with low turbulence according to the preamble of the independent claim.
    Background of the Invention Sterile banks, also called laminated river banks (LAF), are devices similar to a drawbar where the airflow is directed towards the operator. The operator treats goods in the sterile bank, for example medical preparations, and the air flow through the sterile bank ensures that no contaminants from the environment reach the sterile bank and end up on the goods. The term lamindrflow bank indicates the importance of the airflow being laminar, as turbulent air movement could draw contaminants into the sterile bank, at least locally. However, sterile banks do not generate a completely laminar air flow, which can have negative side effects.
    An object of the invention is to provide a sterile bank which has less turbulent air movement than sterile benches according to land technology.
    These and other objects are achieved by a sterile bank according to the known parts of the independent claim. Summary of the invention The invention relates to a sterile bank 1 comprising at least one operator space 3 with an outlet opening 4 through which an operator reaches the interior of the operator space. The exhaust opening is delimited at its upper edge by a closing element 6 and the closing element 6 is provided at its lower edge with an edge element 5 which is angled from the upper part of the closing element 6. With such an edge element a reduced turbulence is advantageously achieved, which reduces the risk of contamination. drawn into the sterile bank.
    In an advantageous embodiment of the invention, the edge element is so angled that it extends from the lower edge of the sealing element 6 towards the interior of the sterile bank. In another advantageous embodiment of the invention, the edge element 5 is so angled that it projects from the lower edge of the closure element 6 from the interior of the sterile bank. 1 Edge element 5 is suitably angled from the upper part of the closing element 6 by an angle in the range 0-700 or even more advantageously in the range 0-0.
    Brief description of the figures Fig. 1 shows in cross section a sterile bank according to the prior art seen from the side Fig. 2 shows a first embodiment of a sterile bank according to the invention seen obliquely from the side Fig. 3 shows in cross section the first embodiment of the sterile bank seen from the side Figs. 4 shows in cross section a second embodiment of a sterile bank according to the invention seen from the side. Description of preferred embodiments The invention relates to a sterile bank, also called a laminar river bank, which is a device similar to a drawbar where the airflow is directed towards the operator, not from the operator. The operating room treats goods in the sterile bank, for example medical preparations, and the airflow through the sterile bank ensures that no contaminants from the environment reach the sterile bank and end up on the goods. The sterile bank is divided into a cabinet upper part 2 and an operator space 3 arranged below it. The cabinet upper part has an inlet valve through which air is taken in to the interior of the sterile bank. The arrow at the top left of the figure illustrates the air movement at the inlet to the inlet valve. The air can already be filtered and pumped into the cupboard top with an external flap, alternatively the cupboard top can comprise an internal flake and filter device.
    The clean air from the top of the cabinet is biased out into the operator space and it is important that the air movement is as close to the laminar as possible in the entire operator space as possible. If vortices and turbulent air movement occur, as illustrated by the strongly curved arrow in the figure, particles and other contaminants can be actively drawn into the sterile bank's operator space. The sterile bank is to a large extent designed to achieve a narrow laminar air movement, but when the air passes through the blow-out opening 4, turbulence can arise. The turbulent air movement, especially in the upper edge of the 2 exhaust opening, can be so strong that particles are actively drawn into the operator's space and then fall on the goods by their own weight.
    Fig. 2 shows a first embodiment of a sterile bank according to the invention seen obliquely from the side. The sterile bank 1 according to the invention is very similar to that according to prior art, with a cabinet upper part 2 connected to a lower operator space 3. The front of the operator space, i.e. the one facing the operator, is in its upper part delimited by a glass plate 6 and is in its lower part open so that the operator can get inside the sterile bank. On the lower edge of the glass sheet there is arranged an edge element 5 angled from the glass sheet. This edge element reduces the risk of turbulent air movement at the exit of the air flow through the exhaust opening.
    Fig. 3 shows in cross section the first embodiment of the sterile bank seen from the side and the angle of the edge element is illustrated more clearly. The bottom arrow in the figure illustrates the laminar air flow that is achieved. In this embodiment the edge element is angled outwards 0 from the glass sheet 6, but the optimal angle depends on a number of factors and can vary within a wide range, typically in the range 10 ° -70 °.
    Fig. 4 shows in cross section a second embodiment of a sterile bank according to the invention seen from the side. In the second embodiment, the edge element 5 in the stable is angled to the interior of the sterile bank. Such an angle was also found to be advantageous and reduces turbulence as particles and other contaminants can be drawn into the sterile bank. The edge element is angled 30 ° from the glass sheet 6, but the optimal angle also depends on a number of factors and can vary, typically in the range 0-0.
    The element which in the described embodiments is referred to as glass sheet 6, can be understood to be formed of materials other than glass, for example plexiglass. It is advantageous if it is transparent, but this is not necessary. It is further advantageous if the edge element is transparent, but obviously the edge element can be formed in which material is lifted. the glass plate 6 and the edge element consist of flat elements, but if the sterile bank had, for example, a curved front, the glass plate 6 and the edge element are also understood to be so. They can be formed on many different salts, but the angle between them is what affects the turbulence. Potentially, they can be made in a continuous piece of goods, but with a corresponding angle between the two parts corresponding to the glass plate and the edge element, respectively. 3 The presented embodiment refers to what has been termed a sterile bank, alternatively a laminar river bank, but by this is meant by no limitation either to a device which is used precisely to achieve a sterile space or a space with a precisely laminar air flock. By what has been termed a sterile bank is also meant variants with a turbulent air flow or corresponding devices whose purpose is completely different from achieving a sterile space.
    The cabinet upper part 2 is exemplified by a steering wheel block-shaped cabinet part, but obviously the physical shape can be different, as long as there is room for the necessary sub-elements. 4
    权利要求:
    Claims (1)
    [1]
    1. / 2 Ai L1 a
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    同族专利:
    公开号 | 公开日
    SE1400430A1|2016-03-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1400430A|SE1400430A1|2014-09-12|2014-09-12|Sterile bench with low turbulence|SE1400430A| SE1400430A1|2014-09-12|2014-09-12|Sterile bench with low turbulence|
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