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Publication Number
US-10663340-B2
Publication Date
2020-05-26
Expiration Date
Abstract
Disclosed are a method, device and system for determining a flow rate of an excretion stream within an excretion collection assembly. According to some embodiments of the present invention, one of the constituent elements of the collection assembly includes a sensing module which includes an electrical and/or electromechanical component.
Core Innovation
A system is described for estimating a rate of urine produced by kidneys and flowing into a bladder based on measurement of an excretion stream within an excretion collection assembly including a catheter. Communication circuits receive urine flow indicative signals produced by one or more measuring devices functionally associated with a catheter and measuring urine flow out of the bladder.
Estimation circuitry estimates a urine flow from the kidneys into the bladder based on the received urine flow indicative signals, and the estimation circuitry includes a signal filter. The estimation circuitry and sensing functionality can be integrated with components such as the measuring device, a display, or a receiving device.
The document also describes an excretion flow measurement apparatus for collecting urine, including catheter, tube, and drainage bag configurations, using an integrated sensing module with electrical and electromechanical components. The sensing module can include measurement probe and integrated communication, transmit signals to a display unit, vital signs monitor, or central monitor, and can include nonvolatile memory for calibration parameters and memory for logging during patient movement.
Claims Coverage
The document provides two independent claims: a system claim and a method claim. Both claims focus on estimating a urine flow into a bladder from measured excretion-stream signals using estimation circuitry that includes a signal filter, with further refinements specifying the architecture and filter type (digital or analog).
Estimating kidney-to-bladder urine flow using catheter-associated urine-flow indicative signals with filtering
communication circuits to receive urine flow indicative signals produced by one or more measuring devices functionally associated with a catheter and measuring urine flow out of the bladder; estimation circuitry to estimate a urine flow from the kidneys into the bladder based on the received urine flow indicative signals; wherein said estimation circuitry includes a signal filter.
Estimating kidney-to-bladder urine flow using filtered estimation based on catheter-associated urine-flow indicative signals
receiving urine flow indicative signals produced by one or more measuring devices functionally associated with a catheter and measuring urine flow out of the bladder; estimating a urine flow from the kidneys into the bladder based on the received urine flow indicative signals; wherein said estimation is at least partially performed using a signal filter.
Across both independent claims, the core coverage is the same: measure an excretion stream within a catheter-associated excretion collection assembly to generate urine-flow indicative signals, then estimate the urine flow rate from the kidneys into the bladder using estimation circuitry that includes a signal filter.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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