EP2685897A2 - Système de mesure de la pression vésicale - Google Patents

Système de mesure de la pression vésicale

Info

Publication number
EP2685897A2
EP2685897A2 EP12716223.8A EP12716223A EP2685897A2 EP 2685897 A2 EP2685897 A2 EP 2685897A2 EP 12716223 A EP12716223 A EP 12716223A EP 2685897 A2 EP2685897 A2 EP 2685897A2
Authority
EP
European Patent Office
Prior art keywords
measuring
pressure
capsule
measuring capsule
bladder
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12716223.8A
Other languages
German (de)
English (en)
Inventor
Sebastian Wille
Dirk Tenholte
Jan Mehner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universitaet zu Koeln
Technische Universitaet Chemnitz
Original Assignee
Universitaet zu Koeln
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 Universitaet zu Koeln filed Critical Universitaet zu Koeln
Publication of EP2685897A2 publication Critical patent/EP2685897A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
    • A61B5/6874—Bladder
    • 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
    • A61B5/205—Determining bladder or urethral pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6861—Capsules, e.g. for swallowing or implanting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/74—Details of notification to user or communication with user or patient; User input means
    • A61B5/7475—User input or interface means, e.g. keyboard, pointing device, joystick
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/16—Details of sensor housings or probes; Details of structural supports for sensors
    • A61B2562/162—Capsule shaped sensor housings, e.g. for swallowing or implantation
    • 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
    • A61B5/207—Sensing devices adapted to collect urine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7221—Determining signal validity, reliability or quality
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7232—Signal processing specially adapted for physiological signals or for diagnostic purposes involving compression of the physiological signal, e.g. to extend the signal recording period

Definitions

  • the invention relates to a bladder pressure measuring system comprising a measuring capsule, which can be introduced into the bladder of a living being, in particular of humans, and which has a pressure sensor and measuring electronics with which pressure readings provided by the pressure sensor can be detected and stored.
  • the invention further relates to a method for measuring the bubble pressure, wherein by means of a measuring capsule, which is introduced into the bladder of a living being, in particular of humans and having a pressure sensor and a measuring electronics, pressure readings are recorded and stored.
  • CONFIRMATION COPY In order to perform long-term aerodynamics, it is also known to record patients inpatients and to perform the aforementioned measurement method over a longer period. However, this often does not lead to meaningful results, since the situation in which the patients are located during such a long-term neurodynamics, not an everyday situation or realistic situation represents and thus patients do not respond in otherwise usual way.
  • Another method of performing long-term aerodynamics uses a measuring capsule which is inserted into the bladder of a living being so as to detect and store pressure readings prevailing in the bladder over such an extended period of time with such a measuring capsule.
  • Bubble pressure measuring systems comprising such a measuring capsule or
  • the measuring system described by the authors Jourand and Puers comprises, in a known manner, a measuring capsule which can be introduced into the bladder
  • this publication in no way discusses the problems associated with such a measuring capsule and arises, for example, from the risk that such a measuring capsule, which is introduced into the bladder in a non-surgical way, for example by a cystoscope or an application aid, be delivered to the urethra during micturition can, this added or even the measuring capsule is lost or within the bubble, the measuring capsule before the bubble outlet and closes this.
  • auxiliaries which are carried in the measuring capsule, possible.
  • the inflated casing of the measuring capsule has a self-dissolving seam so that the gas can escape from the casing, the casing of the measuring capsule collapses and thus the measuring capsule automatically exits during the micturition.
  • Measuring capsule of the type known in the art the aforementioned risks can be excluded, such a measuring capsule so not accidentally enters the urethra or close the bladder outlet and beyond a controlled recovery of the measuring capsule is possible.
  • this is achieved in that on the measuring capsule of the generic type described above, at least one kraftbeaufschlagtes locking element, in particular captive, which can be applied against the force acting on the measuring capsule and the at least partially by the acting force wegd Wegbar of the measuring capsule is, in particular whereby the outer cross section of the measuring capsule is at least partially enlarged.
  • a captive arrangement may e.g. be achieved in that a respective blocking element on the measuring capsule movable, e.g. is hinged.
  • a measuring capsule of the system according to the invention in a state when the at least one blocking element is applied to the measuring capsule, on an outer cross-section, which allows inserting the measuring capsule through the urethra into the bladder or withdraw again.
  • the outer cross-section is at least partially increased so that the measuring capsule can not be lost through the urethra or obstruct the bladder outlet.
  • the non-surgical insertion or removal of the measuring capsule through the urethra through the urethra itself causes the at least one blocking element is applied against the force acting on the measuring capsule.
  • the at least one blocking element can be applied to the measuring capsule by means of a casing surrounding the measuring capsule or positionable around the measuring capsule and can be pushed away from the measuring capsule automatically after removal of the casing.
  • a measuring capsule of this kind according to the invention can be realized in such a way that, in the state when it is within the aforementioned envelope, it is in a usual manner, in particular without surgical intervention
  • Intervention can be introduced through the urethra into the bladder, for example by means of a cystoscope or an application aid.
  • the measuring capsule can preferably be dimensioned such that its outer cross section is smaller than the free inner cross section of the cystoscope used or the application aid (eg catheter), so that the measuring capsule together with the cystoscope or the application aid through the urethra through into the bladder can be advanced.
  • the application aid eg catheter
  • End region forms the aforementioned shell.
  • the hollow end region is effective as a shell and ensures that the at least one blocking element remains applied to the measuring capsule against its application of force.
  • the measuring capsule can thus be ejected with the applied, at least one blocking element from the hollow end portion of the cystoscope or an application aid and thus enters the cavity of the bladder.
  • Measuring capsule removed that is pushed away by the force, which preferably acts from the measuring capsule to the outside, so that thereby the outer cross section of the measuring capsule at least partially, namely where the at least one blocking element is arranged increases.
  • Measuring capsule according to the invention can not be discharged into the urethra.
  • At least one blocking element and the surface of the measuring capsule can find its way in the bubble exit.
  • the bubble pressure measuring system forms, namely the fact that this end region forms the shell described above, it can also be provided that a measuring capsule of the type according to the invention has a separate removable shell, which surrounds the measuring capsule and the at least one blocking element, in particular, in a preferred embodiment after the introduction of the measuring capsule into the bladder can be removed.
  • Such removal may be accomplished, for example, by an auxiliary instrument which is inserted into the bladder through the cystoscope or an application aid. Again, it is then provided that automatically removed by the removal of the shell, the at least one blocking element is pushed away from the measuring capsule and so at least partially increases their outer cross-section.
  • Such an embodiment of the measuring capsule with a separate removable sheath may e.g. be advantageous if the outer cross section or
  • outside diameter of the measuring capsule with the at least one blocking element is greater than the free inner cross section of available cystoscopes, so that in such a case, the hollow end of a measuring capsule can not accommodate.
  • the at least one blocking element is held by the separate shell in a position applied to the measuring capsule and the encased measuring capsule can e.g. be held with an auxiliary element through the cystoscope in a position in front of the hollow end and so through the
  • Urethra be pushed into the bladder, where then the shell is removed.
  • the embodiment of the measuring capsule is designed such that a plurality of locking elements, in particular a plurality of identical or identical locking elements in at least one
  • Circumferentially evenly distributed around the measuring capsule are arranged around.
  • a measuring capsule a measuring capsule
  • Measuring capsule are arranged.
  • Locking elements are each formed as a spring wire, wherein each spring wire along the longitudinal extent of a measuring capsule of the previously
  • the term of the spring wire should not necessarily indicate that the spring wire is made of metal, although this is possible. Such a spring wire may also consist of a plastic or a composite material.
  • the term of the spring wire is not necessarily indicative of a circular cross section of the spring wire perpendicular to its extension, although this cross section is possible. It can e.g. also rectangular cross sections may be possible, e.g. also in an embodiment in which the spring wire is wider than high perpendicular to the extension.
  • Such a measuring capsule according to the invention after the automatic setting up / spacing of the spring wires from the measuring capsule surface after removal of the retaining sheath, forms a shaped body with a substantially ellipsoidal or egg-shaped shape, which thus has such a large size
  • the above-mentioned spring wires have a coating, in particular a mucous membrane-compatible coating.
  • a coating may e.g. be a silicone coating.
  • the material chosen must be appropriately compatible, e.g. made of stainless steel or titanium.
  • the blocking elements are each designed as a planar element that is attached to at least one end hinged to the measuring capsule.
  • a sheet-like element may be supported by one of the respective aforementioned spring wires, in particular supported or by any other force applying
  • Such a planar element can be adapted to correspond correspondingly to the outer contour of the measuring capsule on its surface facing the measuring capsule, so that such a surface element can be tight against the measuring capsule when it is in the casing.
  • the measuring capsule is out of the case
  • a planar element is supported by the aforementioned spring wire
  • a plurality of individual planar elements are provided in the direction of extension of a spring wire between the two ends. This results in an embodiment in which there is a segmented belt per blocking element between the ends of the measuring capsule.
  • the individual flat elements are arranged displaceably on the spring wire. Also, the size of the area of the sheet members may decrease from the center to an end of the measuring capsule.
  • Bladder wall contacted with larger area areas of the bladder wall, so that irritation can be avoided.
  • the locking elements by a, in particular elastic shell at least
  • Such a shell can be realized for example by a silicone shell or other compatible material.
  • Bubble inner wall by larger surface areas, namely those that are formed by the shell takes place and thus avoid irritation.
  • the embodiment of this type mentioned yet has the further advantage that the of several locking elements from the inside
  • supported shell increases the outer cross section of the measuring capsule according to the invention, but this is not necessarily a rotationally symmetric shell arises, especially if it is supported by only a few locking elements in uniform angular pitch from the inside, so that even with this embodiment closing the bladder outlet at unfavorable placement of Measuring capsule can be prevented.
  • the embodiment also has the advantage that the shell of the type according to the invention not by an internal pressurization by a fluid, but by an internal application of force, in particular
  • Federkraftbeetzwegung is increased by the supporting locking elements. There is therefore no need for additional inflation or entrainment of any reagents to effect deployment of this sheath.
  • Such an elastic sheath can also be covered or covered by the previously described removable sheath, at least temporarily in the process of inserting or removing the measuring capsule.
  • a gripping aid is arranged at at least one of the ends of the elongate measuring capsule, by means of which the measuring capsule is gripped by means of a gripping element into the one mentioned above, preferably one or more
  • Locking elements restrained shell is retractable.
  • the hollow end of a cystoscope or an application aid has a run-on slope at the front end area, which facilitates the application of the at least one blocking element to the outer surface of the measuring capsule.
  • Improved embodiments in that it comprises a sensing device with a manually operable button, wherein the Tastvorrichung and the measuring capsule with each other syncable internal timepiece and the measuring capsule is arranged to capture pressure readings together with a time information of their timepiece and the Tastvoriques is set up to capture and store a push-button operation together with a time information of their timepiece.
  • the fact of the push-button operation can be stored by e.g. in a list the time of actuation is written, e.g. exclusively only the time or e.g. the time associated with a sequential number or other information.
  • Bladder pressure measuring system can be seen in the fact that a patient can additionally be given a touch device after placement of a measuring capsule according to the invention with an internal timer, wherein the patient is asked to press the button of the probe when he feels a urinary urgency.
  • the probe device thus represents a separate device of the measuring capsule of the bubble pressure measuring system.
  • Tasting device and the measuring capsule to compare with each other.
  • Measuring capsule it is possible to make a direct comparison between the urinary condition and the pressure readings during the same time were recorded by the measuring capsule. There is thus a greater likelihood that a diagnosing physician will be assisted in his diagnosis by the measured values.
  • the stored actuations i. the times of the actuations are read out, as well as the pressure readings are read from the measuring capsule and their respective detection time, e.g. after removal of the capsule from the bladder, or by radio connection to a reader, e.g. a PC.
  • Actuation times and pressure readings can be assigned to each other by time.
  • a bladder pressure measurement system of this type can be further improved by additionally comprising a template device which can be placed in front of the urethral outlet of a patient and which comprises a sensor for detecting a urine outlet, wherein furthermore the template device has an internal timer which is provided with at least one of the aforementioned timers is synchronized or synchronized and continue to
  • Template device is adapted to detect a urine outlet together with a time information of the timer. The fact of one
  • Urine output can be stored by e.g. in a list the time of urine output is written, e.g. only the time or the time in connection with a consecutive number or another
  • an assignment of the times of the probe device and / or the template device to the times and recorded pressure measured values of the capsule can take place taking into account a temporal inaccuracy interval.
  • Version Pressure readings are recorded one to ten times per second, preferably four times per second.
  • the measuring electronics has a mean value memory in which an average, in particular a moving average, from a number of past pressure readings can be stored and the measuring electronics is also set up, in particular periodically, at intervals one each
  • the pressure measurement value may be provided to include the pressure measurement value only in the mean value to be formed, but not to store it permanently in a separate memory for later retrieval if the current pressure measurement value has only a deviation smaller than a predefined threshold value from the mean value. Only when the deviation is greater than the predetermined threshold, it may be provided, the current
  • Yet another embodiment may provide for storing only all such measured values in a memory which exceed a predetermined threshold value.
  • the memory then preferably comprises these measured values in the order of occurrence of time, in a development with additionally stored time information from an internal clock.
  • FIG. 1 shows a schematic representation of a measuring capsule 1 of the type according to the invention.
  • This measuring capsule 1 has a substantially
  • this measuring capsule is smaller than 8 mm perpendicular to the longitudinal extent between the ends 1a and 1b in order to form such a measuring capsule, e.g. to be able to place with conventional cystoscopes.
  • the embodiment shown here shows as locking elements of the type according to the invention a plurality of spring wires 2, which are between the ends 1 a and 1 b of the
  • the extension is in the nature of magnetic field lines, between the poles of a bar magnet. This means that preferably the spring wires in the case described here
  • Embodiment in the frontal surface areas of the ends 1a and 1b occur substantially perpendicular. However, this is not necessary at all
  • the spring wires 2 which are arranged in this embodiment in a uniform angular pitch around the outer cross section of the measuring capsule, can be applied by pulling the measuring capsule 1 into the open end of a cystocope to the outer surface of the measuring capsule 1, so that they the outer cross section of the measuring capsule. 1 only slightly larger, namely essentially only by a measure which corresponds to twice the diameter of a single wire.
  • the measuring capsule 1 of the embodiment shown here at one of its ends, namely here the end 1 b, a gripping aid 3, which, for. with a pair of pliers can be taken through the cystoscope. After grasping, therefore, the end 1b is drawn into the hollow end of the cystocope, whereby the wires 2 are automatically applied to the capsule through the inner wall of this hollow end portion.
  • a measuring capsule 1 of this type according to the invention placed in the bladder reaches an external cross-section which is large enough to prevent inadvertent entry of the measuring capsule 1 into the urethra. Nevertheless, the outer cross-section can be reduced in such a way that the measuring capsule 1 according to the invention can be placed or recovered through the hollow end of a cystoscope.
  • the illustrated measuring capsule 1 is at least partially covered by an elastic sheath, which is therefore supported by the spring wires from the inside.
  • this sheath automatically sets itself up as soon as the measuring capsule of the type according to the invention has been ejected from the hollow end of a cystoscope. It may be provided that the shell has at least one opening or at least not tightly surrounding the measuring capsule, so that a
  • Pressure equalization between the interior and exterior of the shell can take place which on the one hand makes it possible to set up the envelope and on the other hand causes the bubble pressure to be measured in the measuring capsule, since this is not shielded by the envelope from the pressure acting in the bubble.
  • the pressure sensor which is arranged inside the measuring capsule, can sense the pressure outside the measuring capsule.
  • measuring electronics comprising a MSP 430 F 2012 controller from Texas Instruments.
  • This controller has the advantage of a particularly low power consumption per measured value, so that this power consumption
  • the sensor type BMP 085 can be used as a pressure measuring sensor. This type is a per se barometric sensor, but the pressure measuring range, as it typically occurs in a long-term urometry corresponds. Alternatively, it is also possible to use a Freescale MPL 115 A2 sensor.
  • an EEPROM can be used, for example, which has the advantage of being non-volatile even in the event of a power failure, ie thus preserving the measured values.
  • the measuring capsule described here can be used in conjunction with a tactile device, not shown, in order to carry out the method according to the invention.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Physiology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

L'invention concerne un système de mesure de la pression vésicale et un procédé de mesure, le système comportant une capsule de mesure (1) qui peut être introduite dans la vessie d'un être vivant, notamment de l'homme, et qui comprend un manomètre et un système électronique de mesure au moyen duquel les valeurs de mesure de pression mises à disposition par le manomètre peuvent être détectées et mémorisées. Selon l'invention, le système comporte un dispositif de manipulation comprenant un palpeur manuel, ce dispositif de manipulation et la capsule de mesure présentant des horloges internes synchronisées ou pouvant être synchronisées, la capsule de mesure (1) étant conçue pour détecter et pour mémoriser des valeurs de mesure de pression avec une information temporelle donnée par son horloge, le dispositif de manipulation étant conçu pour détecter et mémoriser un actionnement du palpeur avec une information temporelle donnée par son horloge.
EP12716223.8A 2011-03-17 2012-03-14 Système de mesure de la pression vésicale Withdrawn EP2685897A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011014220A DE102011014220A1 (de) 2011-03-17 2011-03-17 Blasendruckmesssystem
PCT/EP2012/001125 WO2012123107A2 (fr) 2011-03-17 2012-03-14 Système de mesure de la pression vésicale

Publications (1)

Publication Number Publication Date
EP2685897A2 true EP2685897A2 (fr) 2014-01-22

Family

ID=45999759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12716223.8A Withdrawn EP2685897A2 (fr) 2011-03-17 2012-03-14 Système de mesure de la pression vésicale

Country Status (4)

Country Link
US (1) US20140066804A1 (fr)
EP (1) EP2685897A2 (fr)
DE (1) DE102011014220A1 (fr)
WO (1) WO2012123107A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110840430B (zh) * 2018-08-21 2022-09-13 北京万生人和科技有限公司 腹内压数据筛选方法、计算机可读存储介质、腹内压数据筛选装置

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Also Published As

Publication number Publication date
US20140066804A1 (en) 2014-03-06
DE102011014220A1 (de) 2012-09-20
WO2012123107A2 (fr) 2012-09-20
WO2012123107A3 (fr) 2013-12-12

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