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Devices and methods for sensing bladder fullness

A filling and bladder technology, applied in sensors, applications, using spectrum diagnosis, etc., can solve problems such as changes and undetectable filling, and achieve the effect of reducing the risk of infection

Pending Publication Date: 2020-09-18
INCUBE LABS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inability to detect fullness with conventional pudendal nerve stimulation systems is highly problematic because the frequency between a patient's bladder fillings can vary for a number of reasons that the patient may not be aware of (e.g., the patient's recent fluid intake, hydration level, and / or or diet) changes significantly

Method used

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  • Devices and methods for sensing bladder fullness
  • Devices and methods for sensing bladder fullness
  • Devices and methods for sensing bladder fullness

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0075] Example 1 (in vitro)

[0076] This example relates to the in vitro testing of the example of BVSD using explanted porcine bladders.

[0077] Experimental setup: Figure 5A A specific experimental in vitro setup for determining the effect of different separations between light sources (eg, light sources or light emitters 310, 410, 510) and light detectors (eg, detectors 320, 420, 520) is shown. Such as Figure 5A As shown, a bladder monitoring system comprising a BVSD (eg, BVSD 300, 400, 500) sutured to an explanted porcine bladder and submerged underwater in a bladder tank was tested. When the infusion pump and pressure sensor are combined to provide a bladder filling rate of 360 mL / hr, the power supply is configured to provide power to operate the light source of the BVSD, and the voltmeter is configured to measure The corresponding electrical signal is generated.

[0078] Figure 5B An experimental setup of the BVSD 500 is shown for determining whether the sepa...

example 2

[0083] Example 2 (in vivo study)

[0084] This example involves in vivo testing of embodiments of BVSD in a porcine model.

[0085] Experimental setup: 35 kg pigs in excellent condition were obtained following a humane endpoint of another study (independent of the BVSD study), following a bona fide animal reuse policy. The porcine bladder was cannulated and connected to a DRE infusion pump set at 420 mL / hr. Such as Figure 8A and Figure 8B An incision was made, as indicated, and the BVSD sensor was sutured to the surface of the bladder. The incision is closed and a constant rate saline infusion is started. During the filling of the bladder (approximately 1 hour), the voltage output of the BVSD photodiode across the 10k load resistor was recorded. The sampling rate was 1 sample per second, so 3600 samples could be obtained for a bladder volume of 420 mL filled during the 1 hour duration of the experiment. Data were recorded using the Keithley DMM used in the benchtop t...

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Abstract

Embodiments of the invention provide bladder fullness monitoring systems and associated methods for such. One system includes a controller and an active optical sensor that is affixed to a patient's bladder. The sensor emits light onto the bladder and further detects light reflected from the bladder, to generate an output signal that indicates an amount of emitted light was reflected back to the detector. The controller is coupled to the optical sensor to receive and interpret the output signals, e.g., to determine when the bladder is full. The controller may be operatively coupled to a urinary control apparatus which uses the output signals to trigger urination in patients who have lost the ability to voluntarily urinate. Embodiments are particularly useful for monitoring bladder fullnessin patients who have lost bladder sensation and / or the ability to voluntary urinate and rely on a urinary control apparatus in order to urinate.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 609,090 (Attorney Docket No. ICUB. P054P), entitled "Devices and Methods for Sensing Bladder Pressure," filed December 21, 2017, This application may be incorporated herein by reference for any purpose. technical field [0003] Embodiments of the present invention relate to medical devices and methods, and more particularly to a system and method for sensing bladder fullness. Background technique [0004] A number of disorders can result in a loss of the patient's ability to control bladder function voluntarily. Most commonly, patients with spinal cord injuries not only lose the ability to voluntarily control urination, but also the ability to sense when their bladder is full. Such patients often have to use a urinary catheter, such as a Foley catheter, for extended periods of time, which is extended through the patient's urethra until th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/20A61B5/00
CPCA61B5/0075A61B5/14546A61B5/14551A61B5/204A61B5/6837A61B5/686A61B5/6874A61B5/4836
Inventor 拉尔夫·沃尔特·彼得森凯尔·霍伦斯蒂芬·R·克劳斯保罗·斯佩尔埃尔玛·费舍尔乔治·瓦格西米尔·A·伊姆兰
Owner INCUBE LABS