WO2011124388A1 - Dispositif d'aspiration pour aspirer un liquide corporel - Google Patents

Dispositif d'aspiration pour aspirer un liquide corporel Download PDF

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Publication number
WO2011124388A1
WO2011124388A1 PCT/EP2011/001766 EP2011001766W WO2011124388A1 WO 2011124388 A1 WO2011124388 A1 WO 2011124388A1 EP 2011001766 W EP2011001766 W EP 2011001766W WO 2011124388 A1 WO2011124388 A1 WO 2011124388A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
designed
compression unit
body fluid
suction hose
Prior art date
Application number
PCT/EP2011/001766
Other languages
German (de)
English (en)
Original Assignee
Gesundheitsmanager Gmbh
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 Gesundheitsmanager Gmbh filed Critical Gesundheitsmanager Gmbh
Publication of WO2011124388A1 publication Critical patent/WO2011124388A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A61M1/82—Membrane pumps, e.g. bulbs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/123—Machines, pumps, or pumping installations having flexible working members having peristaltic action using an excenter as the squeezing element

Definitions

  • the invention relates to a suction system for aspirating a body fluid, in particular for the suction of wound exudate or sputum.
  • vacuum wound dressings which are applied to the wound to be treated.
  • the wound exudate is sucked off via a suction hose with the aid of a vacuum pump and collected in a collecting container.
  • a catheter also referred to as a suction cannula
  • a suction cannula is introduced into the pharynx, with the aid of which the sputum is aspirated.
  • the collecting container is connected between the wound and the vacuum pump and the suction hose is connected to the vacuum pump.
  • filters are installed on the collecting tank on the output side to the vacuum pump.
  • a negative pressure is generated virtually via the pump in the collecting container (bag), which sucks the wound exudate from the wound into the collecting container.
  • peristaltic or peristaltic pumps are used, in particular in the field of dialysis.
  • the suction hose is passed through the pump and a collecting container is placed only after the pump.
  • This variant has the advantage that a contamination of the pump is not possible because the pump has no contact with the medium to be pumped.
  • peristaltic pumps have only a low pumping performance and are therefore only of limited use due to the viscous consistency of the wound exudate for wound exudate suction.
  • the vacuum wound dressing typically consists of an open-pore structure, such as a tissue, a gauze, a foam body, etc., which is applied to the wound and additionally a known in the wound care film, which is applied over the wound and is glued to marginal healthy skin ,
  • the present invention seeks to provide a suction system for aspirating a body fluid, especially for Wundexsudatabsaugung, which allows reliable operation.
  • the suction power is controlled as needed, i. the suction power is adjusted to a varying amount of wound exudate per unit time
  • a bleeding detected early and appropriate action can be taken, in particular an adjustment (increase) of the suction and preferably in addition the delivery of a warning signal.
  • a specially designed (vacuum) pump for generating a negative pressure for sucking the body fluid is provided.
  • a particularly designed as disposable elastic hose, which is connected in operation at the vacuum wound dressing, is inserted into the vacuum pump and passed through it, so that contamination of the pump is excluded.
  • the suction and pumping effect is brought about by a compression of the suction hose and subsequent relief of the suction hose.
  • a shut-off valve is provided on the input side and on the outlet side, namely an inlet valve and an outlet valve.
  • the suction hose is not selectively but in a large length range preferably compressed by a few centimeters, ie, the distance between the valves is several centimeters and defines a suction hose, which is compressed over its at least almost its entire length.
  • a suitably designed compression unit is provided. The operation of the vacuum pump is subdivided into a suction stroke and an exhaust stroke, during the suction stroke the exhaust valve and during the exhaust stroke the intake valve are closed. At the exhaust stroke, the in
  • Tube to be conveyed medium (Wundexsudat) ejected by compression of the hose output side.
  • this is done by a (electric) motor-driven and preferably eccentrically mounted roller.
  • Other methods for compression of the tube, such as a lifting movement, etc. are possible.
  • the suction hose runs in the longitudinal direction of the roller along this and is periodically clamped by the roller between it and a wall of the pump housing periodically.
  • the roller extends in the longitudinal direction, so that the hose is compressed over a certain length.
  • the length is in this case preferably a few centimeters, for example 3 to 10 cm.
  • the exhaust valve When the suction cycle, the exhaust valve is closed. Due to its elasticity, the suction hose returns to its original state and creates a negative pressure on the suction side.
  • the basic principle and the operation of this vacuum pump is borrowed from a motor which is designed for the use of pressure differences and is described in DE 10 2008 049 293 A1.
  • a difference to the motor described therein is, inter alia, that for use as a vacuum pump preferably only a single suction hose is used and not a plurality of distributed around the circumference of the roller arranged hose pieces.
  • Another essential aspect is to be seen in the arrangement of a pressure sensor, in particular directly in the wound or in the wound dressing.
  • the pressure sensor is in this case designed in particular as a piezo sensor, preferably as a piezo film.
  • the pressure sensor By integrating the pressure sensor into the wound dressing, reliable control of the vacuum pump is enabled since the actual negative pressure at the wound is detected rather than a derivative value, such as pressure on the vacuum pump.
  • the latter can namely provide, for example by blockages in the suction hose, a non-correct result.
  • the sensor signals from the pressure sensor are optionally transmitted wirelessly or by wire.
  • the wired transmission connection contacts are preferably provided on the wound dressing, so that a simple connection is made possible.
  • the vacuum pump is controlled as a function of the detected pressure in order to set the most constant or intermittent pressure in the wound area.
  • the wound dressing is expediently a prefabricated and matched to the suction unit. This is optionally and preferably provided in combination,
  • a perforated suction piece is integrated directly in an open-pore structure of the wound dressing
  • connection for example, a connector, is provided for connecting the suction hose, - Furthermore, a connection, for example, a connector, is provided for connecting the suction hose, -
  • the pressure sensor is integrated, for example, is glued to the top of the open-pore structure (in particular piezo film pressure sensor),
  • a contact plug is integrated, via which a signal line to the pressure sensor can be connected.
  • This prefabricated unit is considered to be a self-contained unit, independent of the other components of the extraction system.
  • the filing of a divisional application for this aspect of the prefabricated wound dressing unit is reserved.
  • weight monitoring is used for this purpose, i. the weight or weight gain (per unit of time) of the extracted wound exudate is recorded and checked. This serves the additional security, for example, to be able to detect a bleeding early.
  • Fig. 1 shows a rough simplified schematic representation of
  • Fig. 2 shows an enlarged, partial view of the vacuum pump.
  • the suction system for wound exudate extraction comprises a vacuum pump 2, which is provided with or connected to a control unit 4.
  • a suction hose 6 leads from a vacuum wound dressing 8 to a collecting container / bag 10.
  • the suction hose 6 is in this case passed through the vacuum pump 2.
  • the suction hose 6 is a disposable article, in particular made of silicone.
  • the vacuum pump 2 has a housing with a reversibly openable housing cover 3, so that the suction hose can be easily inserted into the housing.
  • the vacuum wound dressing 8 has an open-pore structure 12, a gas-tight (adhesive) film 14 and, in the exemplary embodiment, an integrated pressure sensor 16.
  • the pressure sensor 16 is designed in particular as a piezoelectric sensor.
  • the pressure sensor 16 is connected to the control unit 4 via a signal line for transmitting a pressure sensor signal.
  • the open-pore structure 12 e.g.
  • Foam, tissue, gauze is in a wound 17 a. This is closed via the film 14 to the environment, so that a negative pressure can be generated.
  • the pressure sensor 16 is glued, for example, on the structure 12.
  • a prefabricated contact plug 16A is furthermore arranged.
  • a perforated suction piece 15A is integrated, which is connected to the suction hose 6 via a plug connection port 15B.
  • pressure signals also offer wireless transmission, in which case pressure sensor 16 is assigned a suitable communication unit for wireless communication.
  • the collecting container / bag 10 is associated with a weight sensor 18 which detects the weight, in particular the weight increase per unit of time of the collecting container 10, and thus monitors the amount extracted (per unit time) or determined. From the weight sensor 8 also leads a signal line to the control unit 4, alternatively there is a wireless data transmission.
  • FIG. 2 shows a cross-sectional representation of the basic structure of the vacuum pump 2.
  • this has an eccentrically mounted roller 20 which rotates about a rotation axis 22.
  • the roller 20 is mounted eccentrically on a drive shaft 24 which is driven in a manner not shown here by a motor, in particular electric motor.
  • the suction hose 6 is passed through the vacuum pump 2.
  • an inlet valve 26 and the outlet side an outlet valve 28 is provided.
  • the two valves 26,28 are designed as shut-off valves. In particular, they are designed in the manner of hose clamps which shut off the suction hose 6 by clamping and define a suction hose section 6A between them.
  • the shut-off valves are formed by eccentric discs 26,28, which are also mounted on the drive shaft 24 and thus preferably in a fixed angular position to the eccentrically mounted roller 20 are driven to allow the suction cycle or the exhaust stroke.
  • Fig. 2 the beginning of the exhaust stroke is shown.
  • the inlet valve 26 is in its blocking position and the roller 20 will now compress the suction hose 6 and thus eject the wound exudate contained in the suction hose 6 on the output side.
  • the drive shaft 24 is set in rotation, so that periodically and alternately by the Exenterlismn or cam 26,28 the suction hose 6A is once clamped to the suction side and once to the pressure side.
  • the exhaust stroke that is, when the inlet valve 26 is closed, is pressed by the continuous rotation and the eccentric arrangement of the roller 20 against the suction hose 6A and presses it against the housing cover 3 and compresses him.
  • the body fluid located in the suction hose section 6A is ejected on the pressure side and conveyed to the collecting container 10.
  • the inlet valve 26 is opened by the further rotation and the outlet valve 28 is closed in parallel.
  • the roller moves back, ie releases the suction hose section 6A again. This then expands again due to its elasticity in its original widened position.
  • the suction hose 6 sucks on the suction side, ie builds up a negative pressure.
  • the speed of the motor and the drive shaft 24 is controlled to adjust the pump power, ie for adjusting the amount of liquid delivered per unit time or for adjusting the negative pressure generated.
  • the control takes place as a function of the pressure signal obtained from the pressure sensor 16 and preferably also in addition from the weight signal obtained from the weight sensor 18.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Otolaryngology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne un système d'aspiration pour aspirer un liquide corporel, en particulier de l'exsudat de plaie, qui présente une pompe à vide (2) conçue spécialement, dans laquelle un flexible d'aspiration (6) peut être introduit comme article à usage unique et est guidé dans un récipient collecteur (10). La pompe à vide (2) présente une unité de compression conçue comme cylindre (20), une vanne d'entrée côté aspiration (26) et une vanne d'évacuation (28) côté refoulement. Entre ces vannes est défini un tronçon de flexible d'aspiration (6A), qui est comprimé périodiquement par le cylindre (20). Les vannes d'arrêt (26, 28) ferment alternativement le côté aspiration et le côté refoulement, de sorte qu'une dépression est générée côté aspiration pendant un cycle d'aspiration et le liquide contenu dans le tronçon de flexible d'aspiration (6A) est éjecté pendant un cycle d'éjection.
PCT/EP2011/001766 2010-04-09 2011-04-08 Dispositif d'aspiration pour aspirer un liquide corporel WO2011124388A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010004858 2010-04-09
DE202010004858.3 2010-04-09

Publications (1)

Publication Number Publication Date
WO2011124388A1 true WO2011124388A1 (fr) 2011-10-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/001766 WO2011124388A1 (fr) 2010-04-09 2011-04-08 Dispositif d'aspiration pour aspirer un liquide corporel

Country Status (1)

Country Link
WO (1) WO2011124388A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103356328A (zh) * 2013-07-24 2013-10-23 王进 眼科超声乳化仪用负压吸引管路***
US9526920B2 (en) 2010-10-12 2016-12-27 Smith & Nephew, Inc. Medical device
US9737649B2 (en) 2013-03-14 2017-08-22 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
US10155070B2 (en) 2013-08-13 2018-12-18 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
CN109331253A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流控制装置
CN109331252A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流辅助用智能控制装置
CN109331248A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 多用临床引流装置
CN109331251A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流智能控制装置
CN109331245A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 医用智能引流控制装置
US10328188B2 (en) 2013-03-14 2019-06-25 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
US10549016B2 (en) 2014-12-30 2020-02-04 Smith & Nephew, Inc. Blockage detection in reduced pressure therapy
US10624794B2 (en) 2018-02-12 2020-04-21 Healyx Labs, Inc. Negative pressure wound therapy systems, devices, and methods
US10744239B2 (en) 2014-07-31 2020-08-18 Smith & Nephew, Inc. Leak detection in negative pressure wound therapy system
CN112996548A (zh) * 2018-07-20 2021-06-18 辛斯昂2.0有限公司 抽吸血栓清除***和用抽吸导管去除血栓的方法
WO2021173499A1 (fr) * 2020-02-27 2021-09-02 Carefusion 303, Inc. Segment de pompage péristaltique avec clapet antiretour
US11357906B2 (en) 2016-02-12 2022-06-14 Smith & Nephew, Inc. Systems and methods for detecting operational conditions of reduced pressure therapy

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518033A (en) * 1969-08-22 1970-06-30 Robert M Anderson Extracorporeal heart
DE3827722C1 (fr) * 1988-08-16 1989-12-07 Fresenius Ag, 6380 Bad Homburg, De
US20050109795A1 (en) * 2003-11-20 2005-05-26 Furey James F. Fluid dispensing device
WO2006103711A1 (fr) * 2005-03-30 2006-10-05 Medical Service S.R.L. Cartouche jetable, dispositif et systeme pour traitement du sang
WO2008049029A2 (fr) * 2006-10-17 2008-04-24 Bluesky Medical Group Inc. Appareils destinés à soigner des blessures par pression négative activés par un auxiliaire et procédés afférents
DE102008049293A1 (de) 2007-09-27 2009-04-02 Christian Erker Gerät zur Nutzung der Druckdifferenz von Gas- oder Flüssigmedien durch deren Wandlung in Rotationsbewegung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518033A (en) * 1969-08-22 1970-06-30 Robert M Anderson Extracorporeal heart
DE3827722C1 (fr) * 1988-08-16 1989-12-07 Fresenius Ag, 6380 Bad Homburg, De
US20050109795A1 (en) * 2003-11-20 2005-05-26 Furey James F. Fluid dispensing device
WO2006103711A1 (fr) * 2005-03-30 2006-10-05 Medical Service S.R.L. Cartouche jetable, dispositif et systeme pour traitement du sang
WO2008049029A2 (fr) * 2006-10-17 2008-04-24 Bluesky Medical Group Inc. Appareils destinés à soigner des blessures par pression négative activés par un auxiliaire et procédés afférents
DE102008049293A1 (de) 2007-09-27 2009-04-02 Christian Erker Gerät zur Nutzung der Druckdifferenz von Gas- oder Flüssigmedien durch deren Wandlung in Rotationsbewegung

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11565134B2 (en) 2010-10-12 2023-01-31 Smith & Nephew, Inc. Medical device
US9526920B2 (en) 2010-10-12 2016-12-27 Smith & Nephew, Inc. Medical device
US10639502B2 (en) 2010-10-12 2020-05-05 Smith & Nephew, Inc. Medical device
US10086216B2 (en) 2010-10-12 2018-10-02 Smith & Nephew, Inc. Medical device
US10610624B2 (en) 2013-03-14 2020-04-07 Smith & Nephew, Inc. Reduced pressure therapy blockage detection
US9737649B2 (en) 2013-03-14 2017-08-22 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
US11633533B2 (en) 2013-03-14 2023-04-25 Smith & Nephew, Inc. Control architecture for reduced pressure wound therapy apparatus
US12002566B2 (en) 2013-03-14 2024-06-04 Smith & Nephew, Inc. Attachment system for mounting apparatus
US10905806B2 (en) 2013-03-14 2021-02-02 Smith & Nephew, Inc. Reduced pressure wound therapy control and data communication
US10328188B2 (en) 2013-03-14 2019-06-25 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
CN103356328A (zh) * 2013-07-24 2013-10-23 王进 眼科超声乳化仪用负压吸引管路***
US10155070B2 (en) 2013-08-13 2018-12-18 Smith & Nephew, Inc. Systems and methods for applying reduced pressure therapy
US10912870B2 (en) 2013-08-13 2021-02-09 Smith & Nephew, Inc. Canister fluid level detection in reduced pressure therapy systems
US10744239B2 (en) 2014-07-31 2020-08-18 Smith & Nephew, Inc. Leak detection in negative pressure wound therapy system
US10549016B2 (en) 2014-12-30 2020-02-04 Smith & Nephew, Inc. Blockage detection in reduced pressure therapy
US11524106B2 (en) 2014-12-30 2022-12-13 Smith & Nephew, Inc. Blockage detection in reduced pressure therapy
US11357906B2 (en) 2016-02-12 2022-06-14 Smith & Nephew, Inc. Systems and methods for detecting operational conditions of reduced pressure therapy
US10624794B2 (en) 2018-02-12 2020-04-21 Healyx Labs, Inc. Negative pressure wound therapy systems, devices, and methods
CN112996548A (zh) * 2018-07-20 2021-06-18 辛斯昂2.0有限公司 抽吸血栓清除***和用抽吸导管去除血栓的方法
CN109331248A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 多用临床引流装置
CN109331253B (zh) * 2018-09-28 2021-07-16 吕风莉 临床引流控制装置
CN109331252B (zh) * 2018-09-28 2021-07-23 王志红 临床引流辅助用智能控制装置
CN109331248B (zh) * 2018-09-28 2021-08-17 任翊华 多用临床引流装置
CN109331245B (zh) * 2018-09-28 2021-04-27 杜长征 医用智能引流控制装置
CN109331245A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 医用智能引流控制装置
CN109331251A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流智能控制装置
CN109331252A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流辅助用智能控制装置
CN109331253A (zh) * 2018-09-28 2019-02-15 德州飚丰信息技术有限公司 临床引流控制装置
WO2021173499A1 (fr) * 2020-02-27 2021-09-02 Carefusion 303, Inc. Segment de pompage péristaltique avec clapet antiretour

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