Device to prevent urinary leakage
First Claim
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1. A device to prevent urinary leakage intended to be implanted in a patient, comprising:
- an occlusive cuff to compress the urethra of the patient,an electronic controller to actuate the occlusive cuff,at least one sensor to measure at least one activity of the patient that precedes the occurrence of a urinary leakage and coupled with the electronic controller, wherein the at least one sensor comprises an accelerometer having at least one measurement axis adapted to measure an acceleration of the patient,the electronic controller being configured to;
determine a position and a movement of the patient based on the acceleration of the patient and a period of the acceleration,operate in accordance with a predictive model of urinary leakage to anticipate a possible urinary leak based on the position and movement of the patient, wherein the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a pressure to be exerted by the occlusive cuff depending on the type of activity, so as to vary the pressure exerted by the occlusive cuff in relation to the measured position and movement of the patient to prevent any urinary leakage, andvary the pressure to at least two non-zero predetermined pressures, each predetermined pressure being specific to a type of activity of the patient.
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Abstract
The invention concerns a device to prevent urinary leakage intended to be implanted in a patient, comprising:
- compression means (1, 3, 4, 5) to compress the patient'"'"'s urethra,
- electronic control means (2) to actuate the compression means (1, 3, 4, 5),
characterized in that it further comprises measurement means (7) to measure the patient'"'"'s activity, coupled with the control means (2), the control means (2) functioning according to a predictive model of urinary leakage based on patient activity, so as to anticipate a possible urinary leak in relation to the measured activity of the patient.
12 Citations
35 Claims
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1. A device to prevent urinary leakage intended to be implanted in a patient, comprising:
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an occlusive cuff to compress the urethra of the patient, an electronic controller to actuate the occlusive cuff, at least one sensor to measure at least one activity of the patient that precedes the occurrence of a urinary leakage and coupled with the electronic controller, wherein the at least one sensor comprises an accelerometer having at least one measurement axis adapted to measure an acceleration of the patient, the electronic controller being configured to; determine a position and a movement of the patient based on the acceleration of the patient and a period of the acceleration, operate in accordance with a predictive model of urinary leakage to anticipate a possible urinary leak based on the position and movement of the patient, wherein the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a pressure to be exerted by the occlusive cuff depending on the type of activity, so as to vary the pressure exerted by the occlusive cuff in relation to the measured position and movement of the patient to prevent any urinary leakage, and vary the pressure to at least two non-zero predetermined pressures, each predetermined pressure being specific to a type of activity of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A device to prevent urinary leakage intended to be implanted in a patient, comprising:
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an occlusive cuff to compress the urethra of the patient, a reservoir for a fluid, an electronic controller to actuate the occlusive cuff by causing a fluid to circulate between the reservoir and the occlusive cuff, at least one activity sensor to measure at least one activity of the patient that precedes the occurrence of a urinary leakage and coupled with the electronic controller, wherein the at least one activity sensor comprises an accelerometer having at least one measurement axis adapted to measure a position and a movement of the patient, a pressure sensor intended to be arranged on the patient to measure an abdominal pressure of the patient in order to detect urinary leakage, storage medium to store activity and pressure signals respectively derived from the at least one activity sensor and the pressure sensor, and processor to process the activity and pressure signals stored for a determined time corresponding to a period of activity of the patient, in order to construct a predictive model of urinary leakage of the patient by correlating a combination of all or part of the activity signal with the presence or absence of a subsequent urinary leak, so that the predictive model allows anticipation of a possible urinary leak depending on the measured activity of the patient, the electronic controller operating in accordance with the predictive model of urinary leakage to anticipate the possible urinary leak based on the position and movement of the patient, wherein the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a fluid pressure to be applied within the occlusive cuff depending on the type of activity, so as to vary the fluid pressure within the occlusive cuff in relation to the measured position and movement of the patient to prevent any urinary leakage, wherein the electronic controller is capable of varying the pressure to at least two non-zero predetermined pressures, each predetermined pressure being specific to a type of activity of the patient.
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29. A device to prevent urinary leakage intended to be implanted in a patient, comprising:
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an occlusive cuff to compress the urethra of the patient, a reservoir for a fluid, an electronic controller to actuate the occlusive cuff by causing a fluid to circulate between the reservoir and the occlusive cuff, at least one first sensor to measure at least one activity of the patient that precedes the occurrence of a urinary leakage and coupled with the electronic controller, wherein the at least one first sensor comprises an accelerometer having at least one measurement axis adapted to measure a position and a movement of the patient, wherein the electronic controller is configured to estimate a mean fill time of the bladder of the patient based on a number of voidings by the patient and a plurality of periods that are each between two consecutive ones of the voidings, the electronic controller operating in accordance with a predictive model of urinary leakage to anticipate a possible urinary leak based on the position and movement of the patient and the mean fill time of the bladder of the patient, wherein the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a fluid pressure to be applied within the occlusive cuff depending on the type of activity, so as to vary the fluid pressure within the occlusive cuff in relation to the measured position and movement of the patient to prevent any urinary leakage, wherein the electronic controller is capable of varying the pressure to at least two non-zero predetermined pressures, each predetermined pressure being specific to a type of activity of the patient.
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30. A device to prevent urinary leakage intended to be implanted in a patient, comprising:
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an occlusive cuff to compress the urethra of the patient, a reservoir for a fluid, an electronic controller to actuate the occlusive cuff by causing a fluid to circulate between the reservoir and the occlusive cuff, at least one sensor to measure at least one activity of the patient that precedes the occurrence of a urinary leakage and coupled with the electronic controller, wherein the at least one sensor comprises an accelerometer having at least one measurement axis adapted to measure a position and a movement of the patient, the electronic controller operating in accordance with a predictive model of urinary leakage to anticipate a possible urinary leak based on the position and movement of the patient, wherein the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a fluid pressure to be applied within the occlusive cuff depending on the type of activity, so as to vary the fluid pressure within the occlusive cuff in relation to the measured position and movement of the patient to prevent any urinary leakage, wherein the electronic controller is capable of varying the pressure to at least two non-zero predetermined pressures, each predetermined pressure being specific to a type of activity of the patient, the electronic controller being adapted to actuate the occlusive cuff to obtain full absence of compression on the urethra in response to an opening instruction, and in response to a closing instruction to actuate the occlusive cuff to obtain compression of the urethra equal to the compression prior to the opening instruction given by the patient, wherein the electronic controller is coupled with a physiological sensor intended to be implanted in the patient, so as to enable the patient to transmit an opening or closing instruction in the form of a physiological signal generated by the patient to the electronic controller, wherein the physiological sensor is arranged to measure the contraction of a muscle so that the opening or closing instruction depends on the frequency of contraction of the muscle.
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31. A method to control a device for the prevention of urinary leakage intended to be implanted in a patient, the device comprising an occlusive cuff to compress the urethra of the patient, an electronic controller to actuate the occlusive cuff, and at least one sensor to measure at least one activity of the patient that precedes an occurrence of the urinary leakage and coupled with the electronic controller, which is capable of varying a pressure exerted by the occlusive cuff on the urethra to at least two non-zero predetermined pressures, each of the pressures being specific to a type of activity of the patient, wherein the at least one sensor comprises an accelerometer having at least one measurement axis adapted to measure an acceleration of the patient, the method comprising:
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measuring the acceleration of the patient with the at least one sensor, estimating an activity of the patient based on the acceleration of the patient and a period of the acceleration; comparing the estimated activity of the patient with a predictive model of the urinary leakage to anticipate a possible urinary leak, where in the predictive model correlates data from the accelerometer with a type of activity of the patient and determines a pressure to be applied within the occlusive cuff depending on the type of the activity, and instructing the occlusive cuff to vary the pressure exerted by the occlusive cuff on the urethra in relation to the measured activity and to the predictive model to prevent the possible urinary leak, wherein the pressure exerted can be varied to at least two non-zero predetermined pressures, each predetermined pressure being specific to a phase of activity of the patient. - View Dependent Claims (32, 33, 34, 35)
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Specification