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ES461887A1
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Improvements introduced in a heart valve prótesis. (Machine-translation by Google Translate, not legally binding)
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IT1080111B
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Prosthetic heart valve - having tissue valve means attached to short posts by stitching covered by a layer of fabric
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CA1072849A
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Blood oxygenator
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US4065264A
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Blood oxygenator with integral heat exchanger for regulating the temperature of blood in an extracorporeal circuit
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US4084268A
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Prosthetic tissue heart valve
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US4057857A
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Heart valve with arcuate occluder
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US4064882A
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Tracheostomy tube with pressure relief valve
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US4044793A
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Relief valve
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US4009720A
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Wedge seal for a tracheotomy tube
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US3896815A
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Expansible tip catheters
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