File:The replaceable model of implantable heart valve bioprosthese de Menezes Lyra R 1992.tif
The_replaceable_model_of_implantable_heart_valve_bioprosthese_de_Menezes_Lyra_R_1992.tif (474 × 289 pixels, file size: 284 KB, MIME type: image/tiff)
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Summary[edit]
DescriptionThe replaceable model of implantable heart valve bioprosthese de Menezes Lyra R 1992.tif |
English: Replaceable models of heart valve prostheses
Mechanical or biological (bioprostheses or "tissue valves"), the replaceable models of implantable heart valve prostheses are made by two or three mechanical components. The gear attachment mechanism usually uses the coil effect or the bayonet coupling system. The replaceable models of implantable heart valve prostheses are typically supplied with a sewing or suturing ring surrounding the valve body or stent that is to be sutured by the surgeon to the valvar rim. The biggest challenge in this type of prostheses is the difficulty in its future removal. This is due to the formation of pannus fibrotic around the valve body and sewing ring. To separate the parts is very laborious, keeping intact the sewing ring, which will be used in the coupling of the new valve. To easily remove the old replaceable bioprostheses, its "stent" can be sectioned to dismount its framework and so facilitate its removal from the sewing ring. Estudo in vitro, de uma bioprotese recambiavel. Lyra, R M. |
Date | |
Source | Own work |
Author | Robertolyra |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:04, 29 December 2012 | 474 × 289 (284 KB) | Robertolyra (talk | contribs) | User created page with UploadWizard |
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Date and time of data generation | 23:00, 13 February 2011 |
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Width | 474 px |
Height | 289 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 4 |
Number of rows per strip | 6 |
Horizontal resolution | 96.012 dpi |
Vertical resolution | 96.012 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS4 Windows |
File change date and time | 18:07, 29 December 2012 |
Date and time of digitizing | 23:00, 13 February 2011 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
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