WO2016187337A1 - Dispositif de réduction de rayonnement de cysto-urétrographie mictionnelle - Google Patents

Dispositif de réduction de rayonnement de cysto-urétrographie mictionnelle Download PDF

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Publication number
WO2016187337A1
WO2016187337A1 PCT/US2016/033130 US2016033130W WO2016187337A1 WO 2016187337 A1 WO2016187337 A1 WO 2016187337A1 US 2016033130 W US2016033130 W US 2016033130W WO 2016187337 A1 WO2016187337 A1 WO 2016187337A1
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WO
WIPO (PCT)
Prior art keywords
sensor
patient
alarm
urinary catheter
signal
Prior art date
Application number
PCT/US2016/033130
Other languages
English (en)
Inventor
Daniel JIN
Original Assignee
Loma Linda University Medical Center
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Loma Linda University Medical Center filed Critical Loma Linda University Medical Center
Publication of WO2016187337A1 publication Critical patent/WO2016187337A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/20—Status alarms responsive to moisture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/20—Measuring for diagnostic purposes; Identification of persons for measuring urological functions restricted to the evaluation of the urinary system
    • A61B5/202—Assessing bladder functions, e.g. incontinence assessment
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm

Definitions

  • This application is directed to devices and methods for reducing patient exposure to radiation during a voiding cystourethrogram.
  • Voiding cystourethrogram is a fluoroscopic examination that is commonly performed in pediatric patients.
  • VCUG uses ionizing radiation to examine how well the patient's kidneys, ureters, bladder, and urethra are working.
  • Urine normally travels from the kidneys via the ureters to the bladder and exits the human body through the urethra.
  • Vesicoureteral reflux is an abnormal backward flow of urine from the bladder into the ureters and/or kidneys. Newborns with VUR may be lethargic with failure to thrive, while infants and young children typically present with pyrexia (fever), dysuria (painful urination), frequent urination, and gastrointestinal tract symptoms.
  • the ureters enter the urinary bladder obliquely and run submucosally for some distance.
  • the ureter's muscular attachments help secure and support the ureter during storage and voiding of urine.
  • this sealing mechanism fails with resultant retrograde flow of urine towards the kidney.
  • Bladder pressure increases during urination, making it more likely that VUR will occur during urination.
  • VCUG requires fluoroscopic imaging of the patient during urination so that the patient's propensity for VUR is evaluated under the conditions where VUR is most likely to occur.
  • VCUG examination consists of initially inserting a Foley catheter through the urethra and into the urinary bladder. The bladder is then filled with a contrast solution. Multiple fluoroscopic x-ray images of the bladder, ureters, and kidneys are then taken during the examination. In addition, x-ray images are taken of the urethra while the patient is voiding in order to see the entire anatomy of the urethra and flow dynamic. These images allow the radiologist to diagnose any anatomical or functional abnormalities in the flow of urine through the urinary system.
  • a device in accordance with certain embodiments.
  • the device comprises: a sensor configured to detect a liquid or liquid flow and generate a signal, the sensor comprising a component attached to a backing material; and an actuator operably coupled to the sensor, wherein the actuator is configured to actuate an alarm upon receiving the signal, or actuate an imaging device upon receiving the signal, or actuate both an alarm and an imaging device upon receiving the signal.
  • the alarm generates a visual and/or audible alert.
  • the visual and/or audible alert may comprise a discreet flashing light.
  • an electrical property of the component changes when the component comes into contact with urine.
  • the electrical property may be selected from the group consisting of a resistance and a capacitance.
  • the device may further comprise a urinary catheter having an outer surface in contact with the component.
  • the backing material has a funnel shape with a wide end of the funnel shape oriented toward a distal portion of the urinary catheter.
  • the narrow end of the funnel shape may be secured to the outer surface of the urinary catheter.
  • the present disclosure further relates to devices and methods for reducing patient exposure to radiation during a fluoroscopic imaging procedure.
  • a patient is catheterized with a urinary catheter by advancing a distal portion of a urinary catheter through the urethra and into the bladder.
  • An adhesive sensor is positioned in proximity to a portion of the urinary catheter that extends outwardly from the urethra of the patient.
  • the sensor is configured to generate a signal in response to the sensor detecting a liquid or a liquid flow.
  • Contrast agent is initially instilled through the urinary catheter and into the patient's bladder. After the patient's bladder is filled with contrast agent, the voiding portion of the VCUG examination can begin.
  • a signal generated by the sensor in response to detection of liquid or liquid flow actuates the imaging device, causing the imaging device to begin taking fluoroscopic images of the patient.
  • the sensor generates a signal that actuates an alarm that informs the radiologist that the patient has begun voiding, alerting the radiologist to manually begin taking fluoroscopic images of the patient.
  • the alarm generates a visual or audio alert that is perceived by the radiologist.
  • the alarm is discreet to avoid distressing the patient.
  • the patient is a pediatric or neonatal patient.
  • the catheter is a Foley catheter.
  • the sensor is attached to a portion of the urinary catheter.
  • Certain aspects of the disclosure are directed to a device for reducing patient exposure to radiation during a medical imaging procedure.
  • the device includes a sensor configured to detect liquid or flow of a liquid.
  • the sensor is attached to an adhesive bandage that reversibly attaches the sensor to a surface.
  • the device includes an actuator that activates an alarm or the imaging device upon the actuator receiving a signal from the sensor that a liquid or liquid flow has been detected.
  • the device has an alarm configured to emit a discreet audible alert or a discreet flashing light upon the alarm being activated by the actuator.
  • kits for reducing patient exposure to radiation during a medical procedure includes an alarm and a disposable adhesive sensor configured to activate the alarm when the sensor detects a liquid or a liquid flow.
  • FIGURE 1 illustrates an embodiment of a device for alerting a physician of patient voiding.
  • FIGURE 2 illustrates an embodiment of a urinary catheter.
  • FIGURE 3 illustrates a placement on a male patient of an embodiment of a device for alerting a physician of patient voiding.
  • FIGURE 4 illustrates a placement on a female patient of an embodiment of a device for alerting a physician of patient voiding.
  • FIGURE 5 illustrates a method of use in a voiding cystourethrogram of an embodiment of a device for alerting a physician of patient voiding.
  • FIGURE 6 illustrates a funnel-like shaped sensor for use in a voiding cystourethrogram, wherein the sensor has a backing and a component configured to detect a liquid or liquid flow.
  • FIGURES 7A and 7B illustrate an embodiment of the funnel-like shaped sensor of FIGURE 6 in open and closed configurations, respectively.
  • Certain aspects of the present disclosure are generally directed to devices for reducing patient exposure to radiation during VCUG.
  • Each and every feature described herein, and each and every combination of two or more of such features, is included within the scope of the present disclosure provided that the features included in such a combination are not mutually inconsistent.
  • VCUG One difficulty with VCUG is that the radiologist cannot accurately predict when pediatric patients will start voiding, especially in younger children and infants who cannot follow direction.
  • shy and nervous teenagers have a difficult time urinating on the fluoroscopic table while doctors, nurses, and radiology technicians are watching them. These factors significantly increase fluoroscopic times, which equates to unnecessary radiation for the radiosensitive young population.
  • some of these pediatric patients with VUR require multiple VCUG examinations, which can cause high cumulative doses throughout their childhood and beyond.
  • the present disclosure is directed toward a device for reducing radiation exposure during VCUG.
  • One aspect of the device is to reduce unnecessary ionizing radiation to patients (especially in radiosensitive pediatric and neonatal population) who are undergoing a VCUG.
  • the device may include a sensor for detecting patient voiding and a means for alerting the radiologist when the patient begins voiding.
  • the device may include a disposable adhesive sensor that can be placed on the Foley catheter or genital area to detect passage of urine or contrast material. Additionally or alternatively, the device may be configured to actuate the imaging device. Additionally or alternatively, the device may be configured to delay actuating the imaging device for a time period sufficient to allow a technician to remove the catheter from the patient before the imaging device begins to emit radiation. The device may be configured to allow a user to adjust the delay time period that is interposed between the device detecting patient voiding and the device actuating the imaging device.
  • FIGURE 1 depicts a device 100 for alerting a physician of patient voiding.
  • the device 100 can include a sensor 102 for detecting patient voiding.
  • the sensor 102 may be configured to generate a signal when the sensor 102 detects a liquid.
  • the sensor 102 may include a sensing component 104 that changes electrical properties based on contact with a body fluid. For example, the resistance or capacitance of the component 104 may change upon contact of the component 104 with a liquid.
  • the liquid that activates the sensor 102 may be saline, a contrast agent, or a body fluid. Additionally or alternatively, the sensor 102 may include a transducer 106 configured to detect fluid flow.
  • the transducer 106 may be an ultrasonic or optical flow meter.
  • the component 104 that changes electrical property on contact with a liquid or fluid (such as urine) thereby generates the signal. It is referred to herein interchangeably as either the sensing component, or simply as the component.
  • the alarm 112 can be adapted to respond to the signal from the component 104 that voiding has begun.
  • the alarm 112 can include a switch that serves to receive the signal generated by the sensor 102 and activates the alarm 112 in response to receiving the signal from the sensor 102.
  • the alarm 112 can include a base or motherboard that interfaces with the sensor 102. The base or motherboard of the alarm 112 can be battery powered.
  • the sensor 102 may include a bandage 108.
  • the sensor 102 may be attached to a bandage 108 having an adhesive surface configured to removably couple the sensor 102 to a surface.
  • the sensor 102 may include an adhesive 110 configured for securing the sensor 102 in proximity with a site of patient excretion.
  • the adhesive 110 may secure the sensor 102 in proximity with a patient's external urethral orifice.
  • the adhesive 110 may gently and reversibly attach the sensor 102 to the patient's skin, allowing the sensor 102 to be removed with minimal patient discomfort.
  • the adhesive 110 may secure the sensor 102 to at least a portion of the catheter used to access the patient's bladder.
  • the adhesive 110 may secure the sensor 102 to both the patient's skin and the catheter used to access the patient's bladder.
  • the adhesive 110 may secure the sensor 102 to a proximal portion of the catheter tubing that extends outward of the patient's urethra.
  • the sensor 102 may be electronically coupled to an alarm 112.
  • the sensor 102 may be disposable or reusable.
  • the alarm 112 may be disposable or reusable.
  • the sensor 102 may be electronically coupled to the alarm 112 by an electrical conductor 114.
  • the electrical conductor 114 may include a jack 113 that reversibly couples the sensor 102 to the alarm 112.
  • the sensor 102 may be disposable and coupled to a reusable alarm 112 by a jack 113. After use, the disposable sensor 102 may be disposed of by removing the sensor 102 from the alarm 112 by disconnecting the jack 113 from the alarm 112.
  • the alarm 112 can be reused with a second disposable sensor 102 by connecting the second disposable sensor 102 to the alarm 112 by a jack 113.
  • the sensor 102 maybe electronically coupled to the alarm 112 through wireless or cordless technology.
  • the sensor 102 may be coupled to the alarm 112 through light, radio waves, microwaves, infrared radiation, bluetooth, or ultrasound.
  • the alarm 112 may include a display 116.
  • the alarm may include a plurality of displays 116.
  • the display 116 may be a light.
  • the display 116 may be a light that illuminates or flashes or changes color in response to a signal from the sensor 102.
  • the alarm 112 may include an audio speaker 120.
  • the alarm 112 may include means for actuating an imaging device.
  • the alarm 112 may be configured to generate a signal in response to the alarm 112 receiving a signal from the sensor 102.
  • the alarm 112 may be configured to generate a signal that causes the imaging device to initiate the emissions of x-rays.
  • the sensor 102 may be configured to generate a signal that directly or indirectly actuates the imaging device.
  • the sensor 102 may be configured to generate a signal that actuates the alarm 112 or the imaging device when the sensor 102 detects a liquid. Additionally or alternatively, the sensor 102 may generate a signal that actuates the alarm 112, causing the alarm 112 to illuminate a display 116 or emit a sound from the audio speaker 120, which in turn alerts the radiologist to actuate the imaging device.
  • FIGURE 2 depicts a urinary catheter 200 that may be used to introduce contrast agent into the patient's bladder.
  • the urinary catheter 200 used during the VCUG exam may be any urinary catheter, including but not limited to Foley catheters.
  • the urinary catheter 200 has a distal portion 202 and a proximal portion 204.
  • the patient may be catheterized with the urinary catheter 200 by advancing the distal portion 202 of the urinary catheter 200 through the patient's urethra and into the patient's bladder.
  • Contrast agent may be passed into the patient's bladder by gravity drip following catheterization of the patient, as described in the following paragraphs.
  • the urinary catheter 200 may be a Foley catheter.
  • the urinary catheter 200 may be a three-way Foley catheter.
  • the distal portion 202 of the urinary catheter 200 may include an outlet opening 206 that fluidically communicates with an inflow port 210 at the proximal portion 204 of the urinary catheter 200.
  • the inflow port 210 may be connected to the outlet opening 206 by an inflow lumen (not shown).
  • An intravenous bag containing contrast agent may be connected to the inflow port 210 of the urinary catheter 200.
  • the contrast agent may flow into the catheter 200 at the inflow port 210, flow through the inflow lumen, and exit the catheter 200 at the outlet opening 206, thereby introducing contrast agent into the patient's bladder.
  • the urinary catheter 200 may include a balloon 214 at the distal portion 202 of the urinary catheter 200.
  • the balloon 214 may remain deflated during the VCUG to allow fast removal of the catheter 200 from the patient once the patient begins voiding.
  • the balloon 214 may be inflated to help retain the distal portion 202 of the urinary catheter 200 within the patient's bladder after the patient has been catheterized with the urinary catheter 200.
  • the balloon 214 may be fluidically connected to a balloon port 216 at the proximal portion 204 of the urinary catheter 200.
  • the balloon 214 may be inflated after the balloon 214 enters the patient's bladder.
  • the balloon 214 may be inflated by introducing sterile liquid at the balloon port 216 of the urinary catheter 200.
  • FIGURE 3 shows a placement of the device 100 on a male patient.
  • the sensor 102 may be placed near the external orifice 300 of the urethra 302.
  • the distal portion 202 of the urinary catheter 200 may be advanced through the urethra 302 and into the patient's bladder 304.
  • Contrast agent may be introduced at the inflow port 210 of the urinary catheter 200, as discussed above, and may pass into the bladder 304 by flowing out of the outlet opening 206 of the urinary catheter 200.
  • Urine and contrast agent exit the bladder 304 by flowing around (as depicted by small arrows in the figure inset) the external surface 306 of the urinary catheter 200, and ultimately touching the sensor 102. Liquid exiting the bladder 304 by flowing around the external surface 306 of the urinary catheter 200 drains onto the exam table and is collected by absorbent pads positioned around the patient.
  • the sensor 102 may detect at least a portion of the liquid that exits the bladder 304 by flowing around the external surface 306 of the urinary catheter 200.
  • the sensor 102 may be positioned so that liquid exiting the bladder 304 by flowing around the external surface 306 of the urinary catheter 200 contacts the sensor 102 near the tip of the urethra 300.
  • the sensor 102 may include a transducer 106 configured to detect liquid flow.
  • the transducer 106 may be configured to generate a signal when the transducer 106 detects the flow of liquid near the external orifice 300 of the patient's urethra 302.
  • the sensor 102 may be configured so that wetting the sensor 102 with urine or contrast agent causes the sensor 102 to generate a signal that actuates the alarm 112.
  • the alarm 112 may be configured to discreetly alert the radiologist that the patient has begun voiding.
  • the alarm 112 may discreetly alert the radiologist by illuminating a display 116 in response to the signal generated from the sensor 102 upon the sensor 102 detecting the patient has begun voiding.
  • the urinary catheter 200 may be removed quickly once the patient starts voiding to allow an unobstructed view of the urethra 302 without the urinary catheter 200 in place.
  • FIGURE 4 depicts a placement of the device 100 on a female patient.
  • the distal portion 202 of the urinary catheter 200 may be advanced into the patient's bladder 304 and used to introduce contrast agent into the bladder 304.
  • the sensor 102 may be secured in proximity to the external orifice 300 of the urethra 302. During voiding, urine or contrast agent flows out of the bladder 304 and exits through the external orifice 300 of the urethra 302, thereby wetting the sensor 102. Wetting of the sensor 102 may actuate the alarm 112.
  • FIGURE 5 illustrates a method of use of the device 100 on a pediatric patient 500.
  • the patient 500 is positioned on an exam table 502 under a fluoroscopy machine 504.
  • the alarm 112 may be placed in view of the radiologist 506.
  • the radiologist 506 may view a fluoroscopy monitor 510 during the procedure.
  • the patient 500 can be catheterized with a urinary catheter 200, and contrast agent may be introduced into the patient's bladder through a peripheral intravenous line 512 by gravity drip.
  • the sensor 102 can be positioned near the external orifice 300 of the patient's urethra 302 as previously described. Once the patient 500 begins to void, liquid from the patient's bladder 304 may exit at the external orifice 300 of the urethra 302 and may contact the sensor 102.
  • the sensor 102 can be configured to actuate the alarm 112 when the sensor 102 detects that the patient 500 has begun voiding.
  • the alarm 112 can be configured to illuminate a display 116 or emit sound from a speaker 120 upon actuation of the alarm 112 by the sensor 102.
  • the radiologist 506 may then remove the urinary catheter 200 and manually actuate the fluoroscopy machine 504 upon the radiologist 506 receiving a visual or audio alert from the alarm 112 in response to the signal generated by the sensor 102.
  • the radiologist 506 may start taking the x-ray images upon receiving an alert from the alarm 112.
  • the sensor 102 or the alarm 112 may be configured to automatically actuate the fluoroscopy machine 504 upon the sensor 102 detecting voiding by the patient 500.
  • the sensor 102 or alarm 112 may be configured to signal the fluoroscopy machine 504 to begin taking x-ray images.
  • the sensor 102 may be configured to delay automatically actuating the fluoroscopy machine 504 in order to give the radiologist 506 sufficient time to remove the urinary catheter 200 from the patient 500 without the radiologist 506 being exposed to radiation from the fluoroscopy machine 504.
  • the sensor 102 may have a control interface (not shown) that allows the radiologist 506 to adjust the delay time period between the sensor 102 detecting patient voiding and the sensor 102 actuating the fluoroscopy machine 504.
  • FIGURE 6 shows a non-limiting, illustrative embodiment of the sensor 102 attached to the urinary catheter 200.
  • the sensor 102 can be adapted to be positioned close to the external orifice 300 of the patient's urethra 302, as described above, in order to facilitate early detection of patient voiding.
  • the sensor 102 can also be designed to allow the urinary catheter 200 to be quickly removed from the patient without requiring an adhesive tape to be pulled from the patient's skin.
  • the sensor 102 can have a backing material 123 that forms a funnel-like shape with the wide end of the funnel oriented toward the distal portion 202 of the urinary catheter 200.
  • the funnel-like shape of the sensor 102 can channel excreted urine onto the component 104, making the sensor 102 efficient and reliable at detecting patient voiding. Because liquids can flow in streams that have a narrow width and an unpredictable path, excreted urine may bypass sensors that are merely taped to the patient in the vicinity of the external orifice of the urethra.
  • the sensing component 104 that detects liquid can be positioned throughout the inner surface of the funnel-like shaped sensor 102.
  • components 104 that can detect liquid are existing bedwetting alarms and moisture or liquid sensors.
  • the component 104 can be positioned along or immediately adjacent to the distal edge 125 of the sensor 102.
  • the outer surface of the urinary catheter 200 can lie on top of the component 104 so that liquid flowing down the outer surface of the urinary catheter 200 will be detected by the component 104.
  • the sensor 102 is folded or wrapped around the urinary catheter 200 to maintain contact between the component 104 and the outer surface of the urinary catheter 200 so that the component 104 can detect liquid on the outer surface of the urinary catheter 200.
  • an adhesive 108 e.g., tape
  • the sensor 102 can be adapted to quickly detect patient voiding without requiring the sensor 102 to be taped to the patient's skin.
  • the component 104 can communicate with the alarm 112 through an electrical conductor 114 that is coupled to the component 104 through an outlet 115 of the sensor 102.
  • the component 104 interfaces directly with the alarm 112 and serves as an actuator for the alarm 112.
  • a change in the electrical property of the component 104 can be directly included in the circuitry that controls activation of the alarm 112.
  • a transducer serves as an intermediary for communication from the component 104 to the alarm 112.
  • the transducer can be an actuator that receives the signal from the sensor 104 and then actuates the alarm 112 or the fluoroscopy machine 504.
  • the component 104 communicates with the alarm 112 using wireless communication.
  • the component 104 actuates the fluoroscopy machine 504 with or without delay, as discussed above.
  • FIGURE 7 A illustrates a non-limiting embodiment of the sensor 102 in an open or unfolded configuration.
  • FIGURE 7B shows the sensor 102 in a closed or folded configuration.
  • the sensor 102 can have a tapered or trapezoidal shape.
  • a first lateral edge 117 of the sensor 102 can be secured to a second lateral edge 119 by an adhesive 110a (e.g., tape, hook and pile fastener), thereby defining an inner surface 127 and an outer surface 129 of a cone-like or funnel-like structure, as shown in FIGURE 7B.
  • a base edge 121 of the sensor 102 can be secured to itself or to the urinary catheter 200 by an adhesive 110b.
  • the sensor 102 is folded into the closed configuration without the use of adhesive.
  • the component 104 can be arranged in an undulating pattern along the inner surface 127 of the sensor 102, with peaks and troughs that extend substantially perpendicular to the longitudinal axis of the sensor 102, as shown in FIGURE 7 A.
  • the component 104 can be arranged in other patterns as well, such as square waves that have peaks and troughs that are substantially parallel to the longitudinal axis of the sensor 102.
  • at least a portion of the component 104 is positioned along or adjacent to the distal edge 125 in order to facilitate early detection of urine flowing along the outer surface of the urinary catheter 200 that is in contact with the sensor 102.

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  • Electromagnetism (AREA)
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Abstract

La présente invention concerne un dispositif et un procédé de réduction du rayonnement ionisant superflu vers des patients subissant une cysto-urétrographie mictionnelle (VCUG). Le dispositif peut comprendre un capteur qui détecte la miction d'un patient et actionne ensuite une alarme qui avertit le radiologue pour commencer à prendre des images radiographiques du patient. Le dispositif peut être configuré de sorte que le capteur actionne directement une machine de radiographie pour commencer à prendre des images radiographiques du patient une fois que le capteur détecte que le patient a commencé la miction.
PCT/US2016/033130 2015-05-20 2016-05-18 Dispositif de réduction de rayonnement de cysto-urétrographie mictionnelle WO2016187337A1 (fr)

Applications Claiming Priority (2)

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US201562164480P 2015-05-20 2015-05-20
US62/164,480 2015-05-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191950A (en) * 1978-02-09 1980-03-04 Levin Anne F Anti-bed-wetting device
US5137033A (en) * 1991-07-15 1992-08-11 Norton John L Patient monitoring device
WO2008021462A2 (fr) * 2006-08-18 2008-02-21 Fresenius Medical Care Holdings, Inc. Capteur d'humidité
WO2013061179A1 (fr) * 2011-10-28 2013-05-02 Kimberly-Clark Worldwide, Inc. Article absorbant à réseau de capteurs pour la détection d'exsudat corporel
US20140012197A1 (en) * 2012-07-09 2014-01-09 Fresenius Medical Care Deutschland Gmbh Device for detecting moisture for an arrangement for monitoring an access to a patient
EP2738748A1 (fr) * 2011-07-29 2014-06-04 Advance Technology Limited Alarme d'énurésie sans fil et couche jetable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191950A (en) * 1978-02-09 1980-03-04 Levin Anne F Anti-bed-wetting device
US5137033A (en) * 1991-07-15 1992-08-11 Norton John L Patient monitoring device
WO2008021462A2 (fr) * 2006-08-18 2008-02-21 Fresenius Medical Care Holdings, Inc. Capteur d'humidité
EP2738748A1 (fr) * 2011-07-29 2014-06-04 Advance Technology Limited Alarme d'énurésie sans fil et couche jetable
WO2013061179A1 (fr) * 2011-10-28 2013-05-02 Kimberly-Clark Worldwide, Inc. Article absorbant à réseau de capteurs pour la détection d'exsudat corporel
US20140012197A1 (en) * 2012-07-09 2014-01-09 Fresenius Medical Care Deutschland Gmbh Device for detecting moisture for an arrangement for monitoring an access to a patient

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BROOK, O.R. ET AL.: "Urine sensor device for fluoroscopy time reduction in pediatric voiding cystourethrography", EUROPEAN JOURNAL OF RADIOLOGY, vol. 78, 2011, pages 394 - 397, XP028223565 *

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