WO2012009869A1 - Système de traitement des plaies par pression négative capable de détecter le volume de liquide dans un flacon collecteur de liquide - Google Patents

Système de traitement des plaies par pression négative capable de détecter le volume de liquide dans un flacon collecteur de liquide Download PDF

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Publication number
WO2012009869A1
WO2012009869A1 PCT/CN2010/075690 CN2010075690W WO2012009869A1 WO 2012009869 A1 WO2012009869 A1 WO 2012009869A1 CN 2010075690 W CN2010075690 W CN 2010075690W WO 2012009869 A1 WO2012009869 A1 WO 2012009869A1
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WO
WIPO (PCT)
Prior art keywords
liquid
negative pressure
collection bottle
detecting
treatment system
Prior art date
Application number
PCT/CN2010/075690
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English (en)
Chinese (zh)
Inventor
菅冀祁
隗刚
黄锦旺
李佳
Original Assignee
惠州市华阳多媒体电子有限公司
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Application filed by 惠州市华阳多媒体电子有限公司 filed Critical 惠州市华阳多媒体电子有限公司
Publication of WO2012009869A1 publication Critical patent/WO2012009869A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2961—Acoustic waves for discrete levels
    • 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
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A61M1/982—Containers specifically adapted for negative pressure wound therapy with means for detecting level of collected exudate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2965—Measuring attenuation of transmitted waves
    • 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
    • A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3382—Upper level detectors
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3389—Continuous level detection

Definitions

  • Negative pressure wound treatment system capable of detecting the amount of liquid in the liquid collection bottle
  • the invention relates to the technical field of negative pressure wound treatment equipment, in particular to a negative pressure wound treatment system capable of detecting the amount of liquid in a liquid collection bottle. Background technique
  • Negative pressure wound therapy equipment called “Negative Pressure-Wound- Therapy-Devices", referred to as NPWT, is based on the principle of applying negative pressure to the wound to promote wound healing. Combined with other equipment to form negative pressure wound therapy. system. According to clinical data from the United States in the past 10 years, the negative pressure wound treatment system has a good healing effect on various acute and chronic wound treatments.
  • a negative pressure wound treatment system includes a negative pressure wound treatment device, a wound site kit, and a container for collecting exudate at the wound (this container is referred to as a collection bottle in this document).
  • the wound site kit is used to close the wound and form a corresponding negative pressure space.
  • Negative pressure wound therapy devices are used to create the required negative pressure in the negative pressure space.
  • the negative pressure wound treatment device consists of a negative pressure source and a controller. Referring to Figure 1, a common negative pressure wound treatment system is shown.
  • the inside of the dotted line is the negative pressure wound treatment device 8; 1 is the skin tissue around the human wound; the filler 2 at the wound covers the wound of the human body; the wound closure 3 is placed above the filling 2 at the wound, and the wound is closed to form a negative Pressing space; the wound filling 2 is connected to the liquid collecting bottle 5 through the drainage tube 4, and the other end of the liquid collecting bottle 5 is connected with the negative pressure source 6; the negative pressure source 6 provides a negative pressure for the wound exudate to flow to the set
  • the liquid bottle 5 provides power to guide the exudate from the wound to the liquid collection bottle 5, and the liquid collection bottle 5 collects the exudate from the wound; the negative pressure source 6 is connected to a controller 7 and is held by the controller 7
  • the pressure source 6 achieves control.
  • the negative pressure wound treatment system usually has a feature that the liquid collection bottle is designed according to the equipped negative pressure wound treatment device, and the liquid collection bottle can be designed into various shapes, such as a long strip shape, and is closely attached to the negative pressure wound. Treatment equipment.
  • the negative pressure wound treatment system it is required that when the wound exudate collected by the liquid collecting bottle is full, the exudate should not be reversed into the negative pressure wound treatment device, and the liquid collecting bottle needs to be replaced in time; in order to meet this requirement, Generally observed directly by medical staff or patients The way to determine if the collection bottle is full of liquid makes the use of the negative pressure wound treatment system very inconvenient. Summary of the invention
  • the negative pressure wound treatment system of the liquid amount in the detectable liquid collection bottle of the present invention comprises: a negative pressure wound treatment device, including a negative pressure source and a controller;
  • a wound kit that fills the wound and closes the wound, and is connected to the collection bottle through a pipe;
  • the method further includes at least one detecting module, where the detecting module includes:
  • a transmitting unit that emits an electromagnetic wave or an acoustic wave signal to the liquid collecting bottle
  • a receiving unit that receives an electromagnetic wave or sound wave signal reflected or refracted by the liquid collecting bottle
  • the detection control unit determines whether there is a wound exudate at the position of the detection module according to whether the receiving unit receives an electromagnetic wave or an acoustic wave signal.
  • the receiving unit when the receiving unit does not receive the electromagnetic wave or the acoustic wave signal, it is determined that there is a wound exudate at the position of the detecting module; or, when the receiving unit receives the electromagnetic wave or the acoustic wave signal, it is determined that the detecting module has a wound seepage at the position of the detecting module. Drain.
  • the electromagnetic wave is any one of infrared rays, visible light, and ultraviolet rays.
  • the electromagnetic wave is a laser.
  • the laser can be used to ensure directionality and not to diverge.
  • the liquid collection bottle is provided with a plurality of gear positions for characterizing the level of the wound exudate, each gear position corresponding to a detection module.
  • the alarm device further includes an alarm device, and when the detecting control unit of the detecting module corresponding to the gear position characterizing the highest liquid level height determines that the gear position has wound exudate, an alarm trigger signal is sent to the alarm device, and the alarm device sends out Warning signal.
  • the detection control unit controls the intensity of electromagnetic waves or sound waves emitted by the transmitting unit.
  • the detection control unit controls an encoding rule of electromagnetic waves or sound waves emitted by the transmitting unit, and determines whether the receiving code is valid according to the encoding rule, and further controls whether the receiving unit receives or not.
  • 2 to 10 of the detection modules are included.
  • a display unit is further included, the display unit being coupled to the detection control unit and displaying a gear indicating a level of a wound exudate level in the liquid collection bottle.
  • the detecting module is disposed on a transmission mechanism, and the transmission mechanism is coupled to a driving mechanism.
  • the transmission mechanism is any one of a screw rod, a gear set, a belt, and a leather wheel.
  • the negative pressure wound treatment system for detecting the liquid amount of the liquid bottle of the present invention since at least one detecting module is disposed, the detecting module comprises: a transmitting unit that emits electromagnetic waves or ultrasonic signals to the liquid collecting bottle; and a receiving unit that receives the liquid collecting bottle
  • the detection control unit determines whether the receiving unit receives the electromagnetic wave or the ultrasonic signal, and if not, determines that there is a wound exudate at the position of the detecting module, and therefore, the liquid collecting can be detected
  • the liquid level of the wound exudate in the bottle enables the medical staff and the patient to know the amount of exudate in the liquid collecting bottle in time, so as to find out whether the collecting bottle is full or not, so as to prevent the exudate from flowing back to the negative pressure wound. It is easy to use in the treatment equipment.
  • FIG. 1 is a schematic structural view of a conventional negative pressure wound treatment system
  • Figure 2 is a schematic view showing the structure of the first embodiment of the negative pressure wound treatment system for detecting the liquid amount of the liquid collection bottle of the present invention
  • Figure 3 is a schematic view of the optical path of part A of Figure 2;
  • Figure 4 is a schematic diagram of the optical path when there is no exudate in a liquid collecting bottle in the first embodiment
  • Figure 5 is a schematic diagram of the optical path when there is a transparent exudate at a certain place in the liquid collecting bottle in the first embodiment
  • FIG. 6 is a schematic diagram of an optical path when an opaque exudate is present at a certain place in the liquid collection bottle and the electromagnetic wave is visible light;
  • Figure 7 is a schematic view showing the structure of the second embodiment of the negative pressure wound treatment system for detecting the liquid amount of the liquid bottle of the present invention
  • Figure 8 is a schematic view of the optical path of part B in Figure 6;
  • FIG. 9 is a schematic view showing the cooperation of the detecting module, the transmission mechanism and the driving mechanism in the third embodiment of the negative pressure wound treatment system for detecting the liquid amount of the liquid collecting bottle of the present invention.
  • the basic idea of the present invention is to set a corresponding electromagnetic wave or acoustic wave signal transmitting unit and receiving unit, and to cause the corresponding signal emitted by the transmitting unit to collect liquid in the liquid bottle, and then determine the liquid collecting according to the state of the receiving signal received by the receiving unit. The height of the liquid in the bottle to detect the amount of liquid in the collection bottle.
  • the negative pressure wound treatment system provided by the present invention is provided with at least one detection module, and the detection module comprises a transmitting unit, a receiving unit and a detecting control unit, and the electromagnetic wave is emitted from the transmitting unit to the liquid collecting bottle or The ultrasonic signal, the receiving unit receives the electromagnetic wave reflected or refracted by the liquid collecting bottle, and the detecting control unit determines whether there is a wound exudate at the position of the detecting module according to whether the receiving unit receives the electromagnetic wave or the ultrasonic signal.
  • the detection module comprises a transmitting unit, a receiving unit and a detecting control unit, and the electromagnetic wave is emitted from the transmitting unit to the liquid collecting bottle or The ultrasonic signal, the receiving unit receives the electromagnetic wave reflected or refracted by the liquid collecting bottle, and the detecting control unit determines whether there is a wound exudate at the position of the detecting module according to whether the receiving unit receives the electromagnetic wave or the ultrasonic signal.
  • Figure 2 is a negative pressure wound treatment system for the amount of liquid in the detectable liquid collection bottle in the present embodiment
  • Figure 3 is a schematic view of the optical path at A in Figure 2.
  • Negative pressure wound treatment device 8 comprising a negative pressure source 6 and a controller 7;
  • a wound kit for filling a wound and closing the wound including a wound filler 2, a wound closure 3, and a wound filler 2 connected to the collection bottle 5 through a conduit 4;
  • each detecting module 9 includes: a transmitting unit 91, which emits electromagnetic waves or ultrasonic signals to the liquid collecting bottle 5, and is disposed on one side of the liquid collecting bottle 5;
  • the receiving unit 92 receives the electromagnetic wave or ultrasonic signal refracted by the liquid collecting bottle 5, and is disposed on the other side of the liquid collecting bottle 5 opposite to the emitting unit 91 so as to have no oozing liquid at the position of the liquid collecting bottle 5, Just received an electromagnetic wave or ultrasonic signal that has been transmitted through the refraction.
  • the detection control unit determines whether the receiving unit receives an electromagnetic wave or an ultrasonic signal, and if not, determines that there is a wound exudate at the position of the detecting module.
  • the electromagnetic wave used in the present embodiment is infrared light.
  • visible light, ultraviolet light, laser light or other electromagnetic signals may be used, and ultrasonic waves, infrasound waves or other sound wave signals may be used.
  • four or more gear positions for characterizing the level of the wound exudate can be set in the liquid collecting bottle 5, and each gear position corresponds to one detecting module 9, according to the detecting module 9
  • the receiving unit 92 receives the infrared signal or not, determines whether there is an exudate here, and finally determines the liquid level in the liquid collecting bottle 5 by the number of receiving units 92 that can receive the infrared signal.
  • the negative pressure wound treatment system may further include an alarm device (not shown), and the detection control unit of the detection module 9 corresponding to the gear position characterizing the highest liquid level height receives the electromagnetic wave or the ultrasonic signal according to the receiving unit 92. Judging, if not, judging that there is liquid in the gear position, the wound exudate in the liquid collecting bottle 5 is full, and an alarm trigger signal is sent to the alarm, and the alarm sends an alarm signal to prompt the medical staff or The patient replaces the collection bottle in time.
  • the detection control unit can also be used to control the intensity of the electromagnetic wave or ultrasonic wave emitted by the transmitting unit 91, so that the emitted electromagnetic wave or ultrasonic wave is strong enough to be distinguished from other interference light, so as to be received by the receiving unit, and the detection is improved. Sensitivity.
  • the detection control unit may also control the coding rule of the electromagnetic wave or the ultrasonic wave emitted by the transmitting unit 91, and determine whether the received code is valid according to the coding rule, and further control whether the receiving unit receives or not.
  • the number of the detecting modules 9 can be determined according to the specific requirements of the liquid collecting bottle 5, for example, 2, 3, 5, 6, 7, 8, 9, or 10.
  • the negative pressure wound treatment system may further include a display unit (not shown) connected to the detection control unit to display a position in the liquid collection bottle 5 that characterizes the level of the wound exudate liquid, which is convenient for the medical staff. And patient use.
  • a display unit (not shown) connected to the detection control unit to display a position in the liquid collection bottle 5 that characterizes the level of the wound exudate liquid, which is convenient for the medical staff. And patient use.
  • the emitting unit 91 emits an infrared ray S1, which is oscillated through the side wall 51 of the liquid collecting bottle 5 into the inner region 52 of the liquid collecting bottle 5, and then ejected from the other side of the side wall 51 of the liquid collecting bottle 5,
  • the receiving unit 92 receives the infrared ray S1 that penetrates and refracts, and the other part of the infrared ray is reflected into the reflected light S2.
  • Fig. 4 is a schematic view of the optical path when there is no exudate at the corresponding position in the liquid collecting bottle.
  • the infrared light path when there is no exudate at the liquid collecting bottle 5 between the transmitting unit 91 and the receiving unit 92 is made. Further analysis:
  • ⁇ , ⁇ , ⁇ , ⁇ be infrared rays incident on the outer surface of the outer casing of the liquid collecting bottle 5, and be injected into the liquid collecting bottle 5
  • ⁇ be the angle formed by the point at which the infrared rays are incident on the outer surface of the outer casing of the liquid collecting bottle 5 and the line connecting the points from the inner surface to the center line of the cross section of the liquid collecting bottle 5.
  • the liquid bottle 5 have a radius R and a wall thickness h.
  • liquid bottle 5 have a refractive index of nl and a refractive index of about 1 in air.
  • the angle ⁇ between the infrared ray S11 incident on the outer surface of the outer casing of the liquid collecting bottle 5 and the infrared ray S13 emitted from the inner surface is mainly caused by the incident point of the infrared ray on the outer surface of the outer casing of the liquid collecting bottle 5 and the emission from the inner surface.
  • the deflection determination of the arc normal at two points can be approximated:
  • the angle between the infrared ray S12 incident on the inner surface of the liquid collection bottle 5 and the infrared ray S13 on the outer surface of the outer casing of the liquid collection bottle 5 is also ⁇ .
  • the infrared ray S11 incident on the outer surface of the outer casing of the liquid collecting bottle 5 is substantially parallel to the infrared ray S13 which is emitted from the outer surface of the outer casing of the liquid collecting bottle 5.
  • the receiving unit 92 and the transmitting unit 91 are disposed on the same horizontal line, and the receiving unit can receive the refracted infrared rays, and therefore, it is judged that there is no oozing liquid.
  • FIG. 5 shows that the corresponding position in the liquid collecting bottle has oozing out.
  • the position of the receiving unit 92 is set so that it can receive the emitted light only when the liquid collecting bottle 5 has no oozing liquid, and cannot be received when the liquid collecting bottle 5 has the exudate at a predetermined position.
  • the outgoing light can determine the position of the liquid in the liquid collection bottle 5, and thereby the amount of liquid in the liquid collection bottle 5.
  • FIG. 6 is an optical path diagram showing the opaque exudate at the corresponding position in the liquid collecting bottle in the first embodiment and the electromagnetic wave being visible light. Due to the opaque liquid in the liquid collection bottle 5, the visible light S12 is blocked, and the receiving unit 92 receives no visible light.
  • the difference between this embodiment and the first embodiment is that, in this embodiment, the transmitting unit and the receiving unit in each detecting module 9 are disposed on the same side of the liquid collecting bottle 5, and the transmitting unit emits electromagnetic waves or ultrasonic waves.
  • the signal if the receiving unit can receive the electromagnetic wave or ultrasonic signal reflected by the liquid collecting bottle 5, it can be determined that there is no exudate at the detecting module, and vice versa, it can be determined that there is exudate at the position. Referring to the optical path diagram of the ⁇ portion of FIG. 7 shown in FIG.
  • the transmitting unit 91 emits infrared ray S1, which is partially refracted to form a refracted ray S3, which is partially reflected, and the reflected ray S2 is received by the receiving unit 92, thereby judging the detecting module 9
  • the position corresponds to the effluent bottle 5 where there is no effluent; the relative position of the firing unit 91 and the receiving unit 92 can be determined by a limited number of experiments to accurately detect the amount of liquid in the sump 5. The rest and implementation - to, no longer repeat them here.
  • the detecting module 9 is sleeved on a threaded rod 10 extending vertically on a center line, and the center line and set of the screw rod 10
  • the liquid bottle 5 is parallel in the up-and-down direction; preferably, the detecting module 9 is restrained in the circumferential direction of the center line of the screw shaft 10, and can only move in the direction of the center line of the screw rod 10; one end of the screw rod 10 is connected to the motor 11, in Under the driving of the motor 11, the screw shaft 10 rotates around its center line, thereby driving the detecting module 9 to move down the center line of the screw rod 10, and detecting whether the corresponding position of the liquid collecting bottle 5 has liquid.
  • the screw 10 can also be replaced by any other transmission mechanism such as: gear set, belt, and leather wheel; as long as the detection module 9 can move in the vertical direction relative to the liquid collection bottle 5, the detection liquid collection can be realized.
  • the purpose of the bottle 5 corresponding to the amount of liquid.
  • the detecting module 9 in this embodiment drives the detecting module 9 up and down by the screw 10 when the motor 11 is in operation.
  • the detecting module 9 determines that the position at this time corresponds to the liquid surface, and then determines the liquid level of the liquid collecting bottle 5 according to the stroke of the motor, thereby The amount of the permeate in the liquid collection bottle 5 was calculated.
  • the receiving unit 92 when there is no liquid in the liquid collecting bottle 5 and the position where the detecting module 9 is located, the receiving unit 92 can receive an electromagnetic wave signal or an acoustic wave signal, and when there is liquid at the position where the detecting module 9 is located, the receiving unit is provided. 92 can not receive the electromagnetic wave signal or the acoustic wave signal; further, when the receiving unit 92 does not receive the electromagnetic wave signal or the acoustic wave signal, it is judged that the position of the detecting module 9 is stagnant. According to the above description, it is also possible to determine in the opposite manner that the position of the detecting module 9 is a liquid stagnation.
  • the receiving unit 92 can receive the electromagnetic wave signal or the acoustic wave signal when the liquid is present at the position where the detecting module 9 is located, where the detecting module 9 is located.
  • the receiving unit 92 can not receive the electromagnetic wave signal or the acoustic wave signal, and according to whether the receiving unit 92 receives the electromagnetic wave signal or the acoustic wave signal, it is judged that the position of the detecting module 9 is stagnant, thereby realizing the detection of the liquid collecting bottle. 5
  • the purpose of the amount of liquid it is also possible to judge whether the position of the detecting module 9 is stagnation liquid or the like according to the difference between the received signal strength of the electromagnetic wave signal or the acoustic wave signal.
  • the negative pressure wound treatment system for the amount of liquid in the detectable liquid collection bottle of the present invention can measure the amount of liquid in the liquid collection bottle of the negative pressure wound treatment system, and makes the use of the negative pressure wound treatment system more intelligent.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Le système de traitement des plaies par pression négative capable de détecter le volume de liquide dans un flacon collecteur de liquide ci-décrit comprend : un flacon collecteur de liquide (5) pour recueillir les exsudats d'une plaie ; un dispositif de traitement des plaies par pression négative (8) comprenant une source de pression négative (6) et un contrôleur (7) ; de la gaze pour plaie destinée à combler et à obturer la plaie reliée au flacon collecteur de liquide (5) par un drain (4) ; au moins un module de détection (9) comprenant une unité d'émission (91) pour émettre une onde électromagnétique ou un signal ultrasonore à destination du flacon collecteur de liquide (5), une unité de réception (92) servant à recevoir l'onde électromagnétique ou le signal ultrasonore réfléchi ou réfracté par le flacon collecteur de liquide (5), et une unité de commande de détection pour déterminer s'il y a ou non des exsudats de plaie à la position du module de détection (9) en fonction de la réception ou de la non-réception de l'onde électromagnétique ou du signal ultrasonore par l'unité de réception (92).
PCT/CN2010/075690 2010-07-23 2010-08-04 Système de traitement des plaies par pression négative capable de détecter le volume de liquide dans un flacon collecteur de liquide WO2012009869A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010237061.1 2010-07-23
CN2010102370611A CN101884575A (zh) 2010-07-23 2010-07-23 可检测集液瓶内液体容量的负压伤口治疗系统

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Publication Number Publication Date
WO2012009869A1 true WO2012009869A1 (fr) 2012-01-26

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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
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
US10744239B2 (en) 2014-07-31 2020-08-18 Smith & Nephew, Inc. Leak detection in negative pressure wound therapy system
US11357906B2 (en) 2016-02-12 2022-06-14 Smith & Nephew, Inc. Systems and methods for detecting operational conditions of reduced pressure therapy

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CN102120058B (zh) * 2011-01-26 2013-02-13 惠州市华阳医疗电子有限公司 基于伤口渗出液集液瓶管理的负压伤口治疗系统
CN102357276B (zh) * 2011-10-31 2014-02-26 惠州市华阳医疗电子有限公司 光电全反射检测渗出液液位的负压伤口治疗系统
CN102488537A (zh) * 2011-12-15 2012-06-13 广州市美锐美容健康设备实业有限公司 用于皮肤美容的水力磨削装置
CN102818606A (zh) * 2012-07-25 2012-12-12 夏菱 电动吸引器容量监测安全保护装置
CN107183784B (zh) * 2017-05-19 2021-02-26 深圳市合元科技有限公司 一种雾化装置、电子烟具以及电子烟雾化器的控制方法
CN108310481A (zh) * 2018-02-07 2018-07-24 苏州元禾医疗器械有限公司 一种创面治疗装置
CN110013574A (zh) * 2019-05-10 2019-07-16 上海市东方医院（同济大学附属东方医院） 引流液液量实时监测方法

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