System for processing of continuous pressure-related signals derivable from a human or animal body or body cavity
AssigneeDpcom AS
InventorPer Kristian Eide
Life of this patent
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Abstract
This invention describes a method for processing pressure signals derivable from locations inside or outside a human or animal body or body cavity. Different aspects of the invention relate to a method for optimal differentiating between cardiac beat- and artifact-induced pressure waves, a method for obtaining new and improved information from said pressure signals, a method for obtaining signals predicting pressures inside a body or body cavity from pressure signals outside said body or body cavity. In particular, this invention describes a system for sensing continuous pressures signals and displaying output of processing according to the inventive methods.
Claims12
A system for processing continuous pressure-related signals derivable from one or more sensor(s) having location(s) inside or outside a body or body cavity of a human being or animal, said system comprising:
- a processing unit in said system having processing means for processing said signals, said processing means including:
- a) sampling means for sampling said signals from said sensor(s) via and receivable from said pressure transducer means at specific intervals,
- b) converter means for converting the sampled signals received from said sampling means into pressure related digital data with a time reference,
- c) identifying means for during selectable time sequence windows identifying from said digital data output from said converter means single pressure waves related to cardiac beat-induced pressure waves, related to artifacts, or a combination of cardiac beat-induced waves and artifacts, and identifying from the selectable time sequence windows included or selectable time sequence windows to further evaluate the single pressure waves,
- d) computing means for computing time sequence (TS.x) parameters from included or selected time sequence windows output from said identifying means,
- e) analyzing means for analyzing said time sequence (TS.x) parameters in the form of digital data related to said selectable time sequence windows,
- f) output means for outputting to device terminal means one or more pressure parameters related to a selectable number of said time sequence windows:
- f1) mean wave amplitude (TS.MeanWavedP),
- f2) mean wave latency (TS.MeanWavedT),
- f3) mean wave rise time coefficient (TS.MeanWaveRT),
- f4) mean amplitude (TS.MeandP),
- f5) mean latency (TS.MeandT),
- f6) mean rise time coefficient (TS.MeanRT),
- f7) mean single wave pressure (TS.MeanswP),
- g) display means linked to said output means via said device terminal means and capable of displaying output of said processing of the pressure-related signals as outputted from said output means, and
- h) power supply means powering consuming parts within the system.
A system for processing continuous pressure-related signals derivable from one or more sensor(s) having location(s) inside or outside a body or body cavity of a human being or animal, said system comprising:
- a processing unit in said system having processing means for processing said signals, said processing means including:
- a) sampling means for sampling said signals from said sensor(s) via and receivable from said pressure transducer means at specific intervals,
- b) converter means for converting the sampled signals received from said sampling means into pressure related digital data with a time reference,
- c) identifying means for during selectable time sequence windows identifying from said digital data output from said converter means single pressure waves related to cardiac beat-induced pressure waves, related to artifacts, or a combination of cardiac beat-induced waves and artifacts, and identifying from the selectable time sequence windows included or selectable time sequence windows to further evaluate the single pressure waves,
- d) computing means for computing time sequence (TS.x) parameters from included or selected time sequence windows output from said identifying means,
- e) analyzing means for analyzing said time sequence (TS.x) parameters in the form of digital data related to said selectable time sequence windows,
- f) output means for outputting to device terminal means one or more pressure parameters related to a selectable number of said time sequence windows:
- f1) mean wave amplitude (TS.MeanWavedP),
- f2) mean wave latency (TS.MeanWavedT),
- f3) mean wave rise time coefficient (TS.MeanWaveRT),
- f4) mean amplitude (TS.MeandP),
- f5) mean latency (TS.MeandT),
- f6) mean rise time coefficient (TS.MeanRT),
- f7) mean single wave pressure (TS.MeanswP),
- g) a regulator unit linked to said output means via said device terminal means and capable of controlling a valve device via a control unit and a valve opening regulator based on said pressure parameter related signals as outputted from said output means, and
- h) power supply means powering consuming parts within the system.
Dependencies are inferred from the claim text.