• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    17 ABSTRACT A body drainage system for draining fluid from a body cavity of a patient, thebody cavity being provided with an access port, wherein the systemcomprises - a peristaitic pump mechanism (2) , - a housing (t) tor housing at least a portion ot the perietaitic pumpmechanism, - a tiexible tube unit (3, 6, It) contigured to be connected at an access portend to the patient access port, and at a coiiection unit end to a coiiection unit(S), ~ a cover tor covering movabie parts of the peristaitic pump mechanism (2) - a regulator unit contigured to regulate a rotatiohai speed ot the peristaiticpump mechanism, titfherein the tiexible tube unit (3, 6, ï) is contigured to form a ioop suitable tobe placed in one way oniy at peristaitic pump mechanism making it possibletor the peristaitic mechanism to compress a pump portion (3) of the tiexibie tube unit (3, 6, 7) repeatedly such that pumping occurs in a desired direction. Fig.1 DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31
    公开号:SE1650793A1
    申请号:SE1650793
    申请日:2016-06-07
    公开日:2017-12-08
    发明作者:Karroum Richard
    申请人:Haurir Medical Ab；
    IPC主号:
    专利说明:

    [1] [0001]a method for drainage of excess body fluid from a body cavity of a patient.
    [2] [0002]cavity to another point for collection is a routine need and can be performed ln contemporary medical care, the movement of fluid from a body in a number of ways. When tubing or piping is used for carrying the fluidduring the movement either gravity or a pump is utilized to create and/orsustain a suction pressure needed to move the fluid from one point to another.
    [3] [0003]gentle, slow and steady manner. Such gentle, slow and steady manner can At times the movement of fluid from the body must be performed in a be designated “peristalsis”. Peristaltic pumping may be performed in anumber of ways including, but not exclusively, by hand pump or with the use of a peristaltic pump.
    [4] [0004]hand pumping, to achieve the peristaltic movement of excess fluid in a ln medical care, drainage procedures are typically performed by patient's body into drainage bags for disposal or into syringes for laboratoryanalysis or any other medical use. Hand pumping is time consuming andrequires a person to be in attendance at all times. Further, the attendant mustmanually perform the hand pumping necessary to sustain the peristalticmovement. lt is difficult to generate consistent suction forces using handpumping.
    [5] [0005]vacuum suction bottles and wall/portable suction. These methods typically Additional known methods for drainage procedures include plastic DL P4584EP00 Dans Drän Bring sanordning VBVSZdOCX 2016-06-07 ver. 31 2 produce a constant suction rather than a peristaltic suction. These methodsalso includes plastic bottles that are pre-assembled with a vacuumed pre-setunder pressure causing inadequate suction; are bulky and causing storage,operational and shipping difficulties; typically are limited in size necessitatingfrequent changes during the procedure; require special medical wastehandling procedures; and when shattered in use create the danger ofcontamination problem of body fluids. Wall suction, in addition to providingonly constant suction, is not readily available in all clinical settings. Wall unitstend to create greater suction forces than what is safe for a normal drainage procedure.
    [6] [0006]a reguiated peristaitic pump, tubing and coilection unit for the peristaitic According to a second aspect there is provided a method of utiiizing transportation and coilection of tluid the method comprising: ~ evacuation of a hodiiy fiuid from a hodiiy cavity via an access port; - draining the fiuid away from the podiiy cavity through the access port, - reguiation of the appiied peristaltic suction pressure via a reguiator and DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 3 guided by a peristaitic movement indicator; - draining the tiuid away trom the access port vvith a tiexibie tube; ~ pumping the tiuid in a peristaitic manner; and - receiving the tiuid in a coliection unit vvhereas said tiuid properties, such aspi~i and iactate are measured t0007ithe drainage ota body tluid trom a patient, the kit comprising: According to a third aspect there is provided a kit ot parts suitabie for ~ a peristaitic pump unit, having a rotatabie peristaitic mechanism, and firsttixation means tor a ioop ot drainage tubing; - a loop ot drainage tubing contigured to tit at ieast partiaiiy around theperistaitic mechanism, and being provided with a second tixation means torcooperating with the tirst tixation means ot the peristaltic pump unit in orderto keep the drainage tubing in position during pumping; - a coliection unit tor coiiection the drained tiuid BRIEF DESCRIPTION OF THE DRAWINGS
    [8] [0008] ln order that the manner in which the above recited and otheradvantages and objects of the invention are obtained will be readily understood, a more particular description of the invention briefly describedabove will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
    [9] [0009] of the invention and are not therefore to be considered to be limiting of its Understanding that these drawings depict only typical embodiments scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which: Fig. 1a shows a tront view ot a drainage pump unit of a drainage systemaccording to an embodiment of the present invention.
    [10] [0010]according to ah embodiment of the present invehtion. As seen in Fig.
    [11] [0011]connected to the incoming connector 4. The flexible tube 3 is inserted To use the drainage apparatus a patient's access port is through the peristaltic mechanism 2 and is fixed in its operatingposition by first fixation means 6 that secure the operating position ofsaid flexible tube 3 and secure optimal operating peristalticconditions.
    [12] [0012] The apparatus is thus divided into a disposable portioncomprising the flexible tube 3, the first fixation means 6 and thefurther drainage tube 7a and 7b. The drainage tube first portion 7ahas a first end and a second end. The first end of the drainage firstportion 7a comprises the incoming flow connector 4. The second endof the drainage first portion 7a is connected to the first fixation means6.
    [13] [0013] ln order to facilitate easy operation of the drainage apparatus thehousing 1 is provided on its outer surface with a battery indicator 13by which inspection to check if the device is fully Ioaded is readilyperformed.
    [14] [0014] The first fixation means 6 is p|aced in an open position to allowa person access, and the flexible tube 3 is inserted in its operatingposition guided by the fixation means 6 and then secured in theperistaltic mechanism 2 by the engaging the first fixation means 6.
    [15] [0015] A collection unit 8 is preferably provided and shall be connectedto an out-coming connector 5. When the flexible tube 3 and theconnectors, 4, 5 are in position the housing may be activated bypushing the power on button 12. Now the device is ready forconnection to the patient's access port.
    [16] [0016] Pressing the peristaltic regulator button 11 activates the drainageprocedure and the peristaltic pumping is indicated by the peristalticmovement indicator 10. As the bodily fluid is drained from the bodilycavity it enters the connector 4, the first portion 7a of the drainagetube 7 and the flexible tubing 3 and passes the peristaltic mechanism2 and then to the out coming connector 5 and to the collection unit 8 via the second portion 7b of the drainage tube 7.
    [17] [0017] The peristaltic regulator 11 controls the peristaltic motor in a pre- programmed manner to perform what may be denoted a “drainage DL P4584EP00 Dans Drän enng sanordning versZdocx 2016-06-07 ver. 31 6 cycle” To provide this pre-programmed manner of control theperistaltic regulator 11 is configured to include an acceleration phaseduring which the peristaltic motor is controlled to accelerate from anrpm of zero revolutions per minute up to a predetermined operational rpm during a first predetermined time period.
    [18] [0018] The peristaltic regulator 11 is further configured to subsequentlyregulate the motor to keep the predetermined operational rpm duringa second predetermined time period.
    [19] [0019] The peristaltic regulator 11 is further configured to subsequently,during a third predetermined time period, decelerate the peristalticmotor from the operational rpm down to an rpm of zero revolutions per minute.
    [20] [0020] The first predetermined time period may preferably be chosen inthe interval of 20-40 seconds, the second predetermined time periodmay preferably be chosen in the interval of 150 to 250 seconds, andthe third predetermined time period may preferably be chosen in theinterval of 20-40 seconds. Most preferably the predetermined time periods are chosen as around 30, 200, and 30 seconds respectively.
    [21] [0021] The device is further provided with a peristaltic indicator 10. Theperistaltic indicator 10 is configured to indicate to the user how muchof the peristaltic movement capacity that has been utilized. Theperistaltic mechanism is rotating and the regulator 11 controls therotating rate. lf the battery power supply reaches critical levels, thebattery power indicator 13, alerts the user to recharge the battery.
    [22] [0022] Suction pressureThe pressure regulator is preferably of simple, robust and cost effective type. Preferably it is of non-feedback variety. Factorypredetermined rpm limits secure effective but safe suction pressure.
    [23] [0023] As liquid is discharged through the out-coming connector 5 andtransported through the second portion 7b of the drainage tube 7 and deployed in the collection unit 8, it will be in contact with the liquid DL P4584EP00 paris Drän Bring sariordrilrig versZdocx 2016-06-07 ver. 31 7 property indicator 9, and liquid properties such as pH and Lactate are measured as well as the total accumulated volume.
    [24] [0024] Cvlindrical inner surface ln various embodiments the system comprises a cyiiiwdricai or partialiycyiindricai inner surface, wherein the ioop of the fiexibie tube unit 3, 6,Y is configured to be piaced in one way oniy at the rotatabie peristaiticpump mechanism making it possibie for the rotatabie peristaiticmechanism to compress a pump portion (3) of the fiexibie tube unit(3, 5, ï) repeatediy against the cyiindricai inner surface contributing toefficient pumping in the desired direction. The cylindrical inner surfaceis preferable an integral portion of the housing 1 or more preferred thecylindrical inner surface is an integral portion of the cover, such as aremovable or slidable or hinged cover. However, the fixation means 6are preferably sturdy enough to keep the flexible tube in place duringaction of the peristaltic mechanism even if there is no cylindrical innersurface to abut the cylindrical rolls of the peristaltic mechanism, or inthe case such inner cylindrical surface has been broken or damaged.
    [25] [0025] Liquid propertv indicators Further, the device may be provided with liquid property indicator(s) 9to determine properties of the drained liquid. Liquid properties aredetermined with the aid of chemical indicator(s) provided at the insideof a transparent collection bag 8. A pH indicator could be of a halochromic chemical compound so the acidity or basicity can be visually determined.
    [26] [0026] Furthermore the said liquid property indicator 9 may determinethe presence of lactate, reflecting metabolic stress via a test strip thatcontains the immobilized substrate, L-lactate, and be visuallydetermined by its colour intensity.
    [27] [0027] Further, a sample port 15 is provided at a bottom end of thecollection unit/collection bag to enable the user to take samples fromthe drained fluid for further testing.
    [28] [0028] The foregoing description of the invention has been presented DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 8 for purposes of illustration and description. lt is not intended to beexhaustive or to limit the invention to the precise form disclosed, andobviously, many modifications and variations are possible. Suchmodifications and variations that may be apparent to a person skilledin the art are intended to be included within the scope of this invention as defined by the accompanying claims.
    [29] [0029] Fig. 2a shows a schematic side view of a drainage apparatus 200 with a cubic mechanism cover 201, together with a side and a topview of the mechanism cover 201. The cubic mechanism cover 201 isconfigured to be released by pushing a release button 212. When notin use the cubic mechanism cover 201 can be placed on a coverstand 210, preferably arranged at a short end of the unit 200.
    [30] [0030] Fig. 2b shows a schematic side view of a drainage apparatus with a cuboid mechanism cover, together with a side and a top viewof that mechanism cover. The cuboid mechanism cover is provided with one or more support(s) that support the drainage tubing.
    [31] [0031] Fig. 2c shows a schematic side view of a drainage apparatus with a slidable mechanism cover 231, together with a front and a topview of that mechanism cover. The housing 1 is provided withopening 233 for the slidable mechanism cover to slide. There is alsoarranged a lock release button 237 to release the slidable mechanismcover locking mechanism 235. The slidable mechanism cover 231 isprovided with a semi-cylindrical inner surface to allow the loop of thedrainage tubing to be compressed (pinched) between rollers of the mechanism and the semi-cylindrical inner surface.
    [32] [0032] Fig. 2d shows a schematic side view of a drainage apparatus 200 with a hinged mechanism cover 241, together with a side and atop view of that mechanism cover. There is arranged a release button245 to release cover lock mechanism. The hinged mechanism cover241 is provided with a hinge 242 to allow for opening and closing ofthe cover 241. The hinged mechanism cover 241 is provided with asemi-cylindrical inner surface to allow the loop 3 of the drainage DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 9 tubing to be compressed (pinched) between rollers of the mechanism and the semi-cylindrical inner surface.
    [33] [0033] Fig. 3a shows a detail of the slideable mechanism cover 231 of Fig. 2c together with the peristaltic pump mechanism 2. A catch 236of the locking mechanism 235 is arranged to firmly lock the cover intoplace when slided to the right in the figure. The locking mechanism isreleased by pushing locking mechanism release button 237. Thecover is provided with a semi-cylindrical inner surface to allow theloop of the drainage tubing to be compressed (pinched) between rollers of the mechanism and the semi-cylindrical inner surface.
    [34] [0034] Fig. 3b shows a loop 3 of drainage tubing 3, 6, 7a, 7b and first fixation means 6. The tubing 3 is firmly attached to the fixation means6 and do not allow for any sliding between them. The first fixationmeans 6 is preferably provided with mechanical protrusions and orindentations to enable the loop to be mounted in a certain positiononly, and making it impossible to mount the fixation means the wrong way in the second fixation means 21.
    [35] [0035] Fig. 3c shows second fixation means 21 being part of pump unit to receive first fixation means 6 of Fig. 3b. The second fixation means21 is preferably provided with mechanical protrusions and/orindentations, inverted in relation to those of first fixation means 6, toenable first fixation means and the loop to be mounted in a certainposition only, and making it impossible to mount the first fixationmeans 6 the wrong way in the second fixation means 21. This willsecure and safeguard pumping in the wrong direction, which is anadvantage if the drainage system is going to be operated by a patientwho may lack deeper medical and/or technical skills, or maysometimes be a bit confused due to illness.
    [36] [0036] Fig. 4 shows the tube loop 3 of the drainage tubing 3, 6, 7 mounted around the peristaltic mechanism 2. lt can also be seen hownicely the first fixation means 6 fits together with the second fixationmeans 21 to keep the drainage tube 3 in position for efficient DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 pumping. When a cover having a cylindrical inner surface is lockedinto place, the peristaltic mechanism will be more efficient becausethe loop of the drainage tubing will be compressed (pinched) between ro|ers of the mechanism and the semi-cylindrical inner surface.
    [37] [0037] Legend 1234567 1112131421 _ Housing Peristaitic mechanismFlexible tubing lncoming flow connectorOutcoming flow connectorFirst fixation means of flexible tubeDrainage tube Drainage tube first portionDrainage tube second portionCollection unit Liquid property indicatorPeristaitic movement indicatorPeristaitic regulator Power on button Battery power indicatorBattery Sample port of collection unit Second fixation means of pump unit 200 Drainage apparatus 201 Cubic mechanism cover 202 Peristaitic mechanism210Cover stand212Cover release button 221 Cuboid mechanism cover 231 Slidable mechanism cover 2330pening for cover to slide DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 11 235 Locking mechanism 236 Catch of Iocking mechanism 237 Locking mechanism release button241 Hinged mechanism cover 242 Hinge 245Hinged cover release button DL P4584EP00 paris Dräri Bring sariordriirig versZdocx 2016-06-07 ver. 31
    权利要求:
    Claims (1)
    [1] 1. 2 _ A body drainage system for draining fluid from a body cavity of a patient, the body cavity being provided with an access port,wherein the system comprises - a rotatabie peristaitic pump mechanism (2) , - a housing (t i for housing at ieast a portion of the peristaiticpump mechanism, - a fiexibie tube unit (3, ß, 17) configured to be connected at anaccess port end to the patient access port, and at a coiiectionunit end to a coiiection unit (S), - a cover for covering movabie parts of the peristaitic pumpmechanism (2) - a reguiator unit configured to reguiate a rotationai speed ofthe peristaitic pump mechanism, wherein the fiexibie tube unit (3, 6, 7) is configured to form aioop suitabie to be piaced in one way oniy at peristaitic pumpmechanism making it possibie for the rotatabie peristaiticmechanism to compress a pump portion (3) of the fiexibie tubeunit (3, o, f) repeatediy such that pumping occurs in a desireddirection. _ A body drainage system according to c|aim 1 wherein the system further comprises - a cyiindricai or partiaiiy cyiindricai inner surface, wherein the ioop of the fiexibie tube unit (3, 6, Y) is configuredto be piaced in one tivay oniy at the rotatabie peristaitic pumpmechanism making it possibie for the rotatabie peristaiticmechanism to compress a pump portion (3) of the fiexibie tubeunit (3, 6, ï) repeatediy against the cyiindricai inner surface contributing to efficient pumping in the desired direction. DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 13 _ The drainage system according to claim 1 or 2, further comprising hoiding means that can be set in an open position,and that can be set in a ciosed pcsiticn, respectiveiy, andwhen set in the ciesed position provides the cyiindrical innersurface menticned in ciaim i for the peristaitic mechanism,and simuitaneeusiy ccnstitutes the cover menticned in ciairni. _ The drainage system according to any of claims 1 to 3 wherein the regulator unit is configured to, upon usercommand, perform a drainage cycle, the drainage cyclecomprising - an acceleration phase, during which the peristaltic pumpaccelerates from zero rpm to a first predetermined rpm, and - an operational phase, wherein the pump is controlled to keepthe first rpm, and -a deceleration phase, during which the peristaltic pump decelerates from the first predetermined rpm to zero rpm. _ The drainage system according to any of claims 1 to 4 wherein the flexible tube unit (3, 6, 7) have a drainage tubefirst portion 7a and a drainage tube second portion 7b, andwherein the second portion 7b have an outlet end that can beconnected to a collection unit (8), said unit (8) being providedwith chemical indication means, to provide the user withinformation regarding the chemical parameters of the fluid in the collection unit. _ The drainage system according to claim 5 wherein the chemical indication means is colour shifting indication means such as e_g_ litmus paper. DL P4584EP00 Dans Drän Bring sanordnlng VBrSZdOCX 2016-06-07 ver. 31 14 _ A method for draining a bodily fluid via a drainage tube (7) and a peristaltic pump wherein the peristaltic mechanism (2) iscomprised of a rotating frame having a number of cylindricalcompression rolls, and wherein the peristaltic mechanism anda cylindrical inner surface are configured to hold betweenthem a loop of the flexible tube in order to compress the tubeas the compression rolls travels along the loop, and whereinthe cylindrical inner surface is arranged as an inner surface ofa cover, arranged to hold the flexible tube in correct positionagainst the peristaltic mechanism (2) and to cover theperistaltic mechanism and prevent undesired objects like wetwipes and fingers to get caught in the mechanism. _ The method of claim 7, wherein the bodily fluid is collected at an end of the flexible tube further analysis (9) may be pH andlactate determined via chemical indicators. _ The method of claim 7 or 8, wherein the flexible tube (7) is directed to the correct position via fixation means (6) thatholds the flexible tube in position throughout the drainage procedure 10_A method for drainage of bodily fluids, comprising a connection to an access port of a patient where bodily fluids isto be removed from a cavity, the method comprising thefollowing steps: -inserting a flexible tube through a peristaltic pumpmechanism so as to pump fluid into a collection unit, wherein a programmed loop of pumping is performed so as toperform a variety of applied suction pressure in the bodily cavity. DL P4584EP00 Dans Drän Bring sanordning VBrSZdOCX 2016-06-07 ver. 31 11.The method of claim 10, wherein the peristaltic movement iscontrolled by a pre-programmed regulating mechanism duringoperation. 12.The method of claim 10 or 11, wherein after insertion of theflexible tube and then closing a cover that holds the flexibletube into the peristaltic mechanism the peristaltic pump maybe activated by pushing a power on button. 13. Use of a peristaltic drainage system according to any of theclaims 1-6 for draining f|uid from a body cavity of a patient. 14.The use according to claim 13, wherein the body f|uid may beselected from the group of, serum, sputum, water, woundliquid, lymphatic liquid, extravascular blood or a combinationthereof. 15.A kit of parts suitable for the drainage of a body fluid from a patient, the kit comprising: - a peristaltic pump unit, having a peristaltic mechanism, andfirst fixation means for a loop of drainage tubing; - a loop of drainage tubing having a second fixation means forcooperating with the first fixation means of the peristaltic pumpunit in order to keep the drainage tubing in position duringpumping; - a collection unit for collection the drained f|uid 16.A peristaltic pump unit, comprising: - a rotatabie peristaltic pump mechanism (2) , - a housing (1) for housing at least a portion of the peristalticpump mechanism, - a cover for covering movable parts of the peristaltic pumpmechanism (23 DL P4584EP00 Dans Drän Bring sanordnlng versZdocx 2016-06-07 ver. 31 16 - first fixation means (21)for a loop (3) ofdrainage tubing (3,6,7), - a reguiator unit oonfigured to reguiate a rotationai speed ofthe peristaltic pump mechanism 517.A fiexibie tube unit (3, d, 7) oonfigured to be connected at an access port end to a patient access port, and at a coiiectionunit end to a ooiieotion unit (S), and further oomprisiiwgsecond fixation means (6) for cooperating with first fixation 10 means (21) of the peristaltic pump unit in order to keep the drainage tubing in position during pumping;18. The fiexihie tube unit (3, 6, Y) of oiaim t further oomprising a ooiiection bag provided with chemical indioation means. DL P4584EP00 Dans Drän Bring sanordning VBVSZdOCX 2016-06-07 ver. 31
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    法律状态:
    优先权:
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    JP2018564816A| JP2019523676A|2016-06-07|2017-06-07|Body drainage device|
    PCT/SE2017/050606| WO2017213578A1|2016-06-07|2017-06-07|Body drainage apparatus|
    CN201780035368.3A| CN109310807A|2016-06-07|2017-06-07|Body drainage device|
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