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WO2012027915A1 - Système de traitement des plaies par pression négative pouvant détecter et afficher le volume d'exsudats - Google Patents

Système de traitement des plaies par pression négative pouvant détecter et afficher le volume d'exsudats Download PDF

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Publication number
WO2012027915A1
WO2012027915A1 PCT/CN2010/077054 CN2010077054W WO2012027915A1 WO 2012027915 A1 WO2012027915 A1 WO 2012027915A1 CN 2010077054 W CN2010077054 W CN 2010077054W WO 2012027915 A1 WO2012027915 A1 WO 2012027915A1
Authority
WO
WIPO (PCT)
Prior art keywords
exudate
volume
negative pressure
detecting
pressure wound
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.)
Ceased
Application number
PCT/CN2010/077054
Other languages
English (en)
Chinese (zh)
Inventor
隗刚
菅冀祁
黄锦旺
李佳
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.)
Foryou Multimedia Electronics Co Ltd
Original Assignee
Foryou Multimedia Electronics Co Ltd
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 Foryou Multimedia Electronics Co Ltd filed Critical Foryou Multimedia Electronics Co Ltd
Publication of WO2012027915A1 publication Critical patent/WO2012027915A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • A61M2205/18—General characteristics of the apparatus with alarm
    • 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
    • A61M2205/3306—Optical measuring means
    • 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 for Detecting and Displaying Exudate Volume This application claims to be filed on September 3, 2010, the Chinese Patent Office, Application No. 201010274072.7, entitled “Detectable and Displaying Volume of Exudate Negative Pressure Wounds" Priority of Chinese Patent Application for "Therapeutic System", the entire contents of which is incorporated herein by reference.
  • Negative pressure wound treatment equipment called Negative-Pressure-Wound-Therapy-Device
  • NPWT Negative-Pressure-Wound-Therapy-Device
  • 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 (herein referred to as a container for the collection bottle).
  • the wound kit is used to close the wound and create a negative pressure space.
  • the negative pressure wound treatment device is used to create the desired wound negative pressure, and 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 dotted line frame 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, the wound is closed, and the wound is filled
  • the substance 2 is connected to the liquid collecting bottle 5 through the connecting tube 4, thereby guiding the exudate from the wound into the liquid collecting bottle 5, collecting the exudate from the wound through the collecting bottle 5, and collecting the liquid collecting bottle 5
  • One end is connected to the negative pressure source 6, and the negative pressure source 6 provides a negative pressure to supply the wound exudate to the liquid collecting bottle 5; the negative pressure source 6 is connected to a controller 7, and the negative pressure source 6 is connected by the controller 7.
  • Wound exudate is a body fluid that accumulates in the wound and has many physiological causes for its formation. In the treatment of wounds, exudate management is one of the important topics in modern wound care research.
  • the negative pressure wound treatment of the present invention which can detect and display the volume of exudate
  • the exudate volume detecting module comprises:
  • a transmitting unit that emits an electromagnetic wave or an acoustic wave signal to the liquid collecting bottle
  • the receiving unit receives the electromagnetic wave or sound wave signal reflected or refracted by the liquid collecting bottle; and the detecting control unit determines whether there is wound exudate at the position of the exudate volume detecting module according to whether the receiving unit receives the electromagnetic wave or the acoustic wave signal.
  • the plurality of exudate volume detecting modules are disposed at the same distance along the longitudinal interval of the liquid collection bottle.
  • the exudate volume detecting module is disposed on a transmission mechanism, and the transmission mechanism is coupled to a driving mechanism.
  • a chart generating unit is further included to generate a data chart including time and exudate volume on a time basis; and the display interface further displays the data chart.
  • an arithmetic unit is further included, the flow rate of the exudate is calculated according to the time and the volume of the exudate, and the display interface further displays the flow rate data of the exudate.
  • a communication device which stores the stored time, the volume of the exudate or the generation The data is sent to an end device.
  • a communication device is further included for transmitting the stored time, the exudate volume data or the calculated exudate flow data to a terminal device.
  • the communication device is any one of an infrared communication module, a Bluetooth module, a GPRS module, and a local area network module.
  • the terminal device is any one of a PDA, a personal computer, and a smart phone.
  • the negative pressure wound treatment system of the invention capable of detecting and displaying the volume of wound exudate, for setting the exudate volume detecting module for detecting the volume of the exudate in the collecting bottle; the storage unit for storing the time by time
  • the output volume is used to selectively display the storage time and the volume of the exudate volume. Therefore, the medical staff can directly observe the display interface to know the corresponding relationship between the exudate and the time, which is convenient for further research.
  • a graph generating unit is further configured to generate a data graph including time and exudate volume based on time; the display interface can also display a data graph, and the generated graph can facilitate visual observation of the exudation by the medical staff.
  • the correspondence between liquid and volume is further configured to generate a data graph including time and exudate volume based on time; the display interface can also display a data graph, and the generated graph can facilitate visual observation of the exudation by the medical staff.
  • a communication device is further disposed, configured to directly send the storage unit time and the exudate volume data to the terminal device, or directly send the generated chart to the terminal device, so that the medical staff can directly observe the exudation from the terminal device.
  • the correspondence between liquid and time is more convenient to use.
  • FIG. 1 is a schematic structural view of a conventional negative pressure wound treatment system
  • FIG. 2 is a schematic view showing the structure of a first embodiment of a negative pressure wound treatment system capable of detecting and displaying the volume of wound exudate according to the present invention
  • FIG. 3 is an example of a graph of exudate time and volume data which can be displayed by a negative pressure wound treatment system capable of detecting and displaying wound exudate volume according to the present invention
  • Figure 4 is a second example of a graph showing the time and volume data of the exudate which can be displayed by the negative pressure wound treatment system of the present invention which can detect and display the volume of wound exudate;
  • Figure 5 is a schematic view of the optical path of part A of Figure 2;
  • Figure 6 is a schematic diagram of the optical path when there is no exudate in a liquid collecting bottle in the first embodiment
  • Figure 7 is a schematic diagram of the optical path when there is a transparent exudate at a certain position in the first embodiment of the liquid collection bottle
  • Figure 8 is an exudate of the second embodiment of the negative pressure wound treatment system capable of detecting and displaying the volume of the wound exudate of the present invention.
  • the negative pressure wound treatment system of the present embodiment which can detect and display the volume of exudate includes:
  • 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 connecting tube 4;
  • the controller 7 is provided with a storage unit for storing the volume of the exudate according to time;
  • the controller 7 is further provided with a chart generating unit for generating a data chart including time and exudate volume based on time; wherein the chart may be in the form of a column chart, a line chart or a pie chart.
  • the controller is coupled to a display interface 12 that can directly display time and volume data from the storage unit, as well as a graph of the volume and time of the exudate generated from the chart generation unit. Referring to Figures 3 and 4, these two figures are examples of data plots of the volume and time of the two exudates that can be displayed on the display interface 12.
  • the display interface is an LED display interface. Of course, other display interfaces can also be used, such as LCD interface.
  • the communication device (not shown) for transmitting time and volume data or data charts to terminal devices such as PDAs, personal computers, and smart phones via SPI, Internet, and Bluetooth transmission is also included.
  • each exudate volume detecting module 9 comprises:
  • the transmitting unit 91 emits an electromagnetic wave or an ultrasonic signal to the liquid collecting bottle 5, and is disposed on one side of the liquid collecting bottle 5;
  • the receiving unit 92 receives an electromagnetic wave or an 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 that there is 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.
  • the liquid collecting bottle 5 is provided with four gear positions for characterizing the level of the wound exudate liquid, and each gear position corresponds to an exudate volume detecting module 9, according to the receiving of the exudate volume detecting module 9.
  • the unit 92 receives the infrared signal or not, determines whether there is exudate, and then determines the liquid level in the liquid collecting bottle 5 by the number of receiving units 92 that can receive the infrared signal, and then combines the bottom of the liquid collecting bottle. The area can be used to calculate the volume of exudate in the collection bottle.
  • the transmitting 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. 6 is a schematic view of the optical path when there is no exudate at the corresponding position in the liquid collecting bottle, and 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 below. Further analysis:
  • ⁇ , ⁇ , ⁇ , ⁇ be infrared rays respectively hit the outer surface of the outer casing of the liquid collecting bottle 5, and enter 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 on 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. 7 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 bleeding, and the outgoing light cannot be received when the liquid collecting bottle 5 has the exudate. , the liquid position in the liquid collection bottle 5 can be judged, and the liquid volume in the liquid collection bottle 5 can be calculated.
  • the negative pressure wound treatment system capable of detecting and displaying the volume of the exudate, when used, detects the volume of the exudate in the liquid collecting bottle by the exudate volume detecting module at a certain time interval, and the storage unit stores The time and the data corresponding to the volume of the exudate, the graph generation unit generates a time and exudate volume corresponding data chart based on time.
  • the display interface selectively displays the time and corresponding exudate volume data or displays the generated time and exudate data chart according to the settings of the medical staff. Referring to Figure 3 and Figure 4, the display interface shows the corresponding volume data of the exudate volume.
  • the horizontal axis of the graph is time
  • the vertical axis is the volume of exudate, which is convenient for medical personnel or other users to observe.
  • the volume, time data or data chart of the exudate can also be sent to the terminal device for medical personnel to view through a communication device, which makes the system more convenient to use.
  • the exudate volume detecting module 9 is placed on a screw 10 vertically extending on a center line, the lead screw 10 center line is parallel to the up-and-down direction of the liquid collection bottle 5; preferably, the exudate volume 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 10 is connected to the motor 11, and under the driving of the motor 11, the screw 10 rotates around its center line, thereby driving the exudate volume module 9 to move down the center line of the screw 10, and whether the corresponding position of the liquid collecting bottle 5 has The liquid is tested.
  • the screw 10 can also be used by any other transmission mechanism such as: gear set, belt, and leather wheel Alternatively, as long as the exudate volume detecting module 9 can be moved in the vertical direction with respect to the liquid collecting bottle 5, the purpose of detecting the liquid amount at the corresponding position of the liquid collecting bottle 5 can be achieved.
  • the exudate volume detecting module 9 in this embodiment drives the exudate volume detecting module 9 up and down by the screw 10 when the motor 11 is in operation.
  • the exudate volume detecting module 9 determines that the position at this time corresponds to the liquid level, and then determines the liquid of the liquid collecting bottle 5 according to the stroke of the motor.
  • the surface height is calculated to calculate the amount of exudate in the liquid collection bottle 5.
  • the controller 7 in this embodiment further includes an arithmetic unit for calculating the flow rate of the exudate according to the volume and time of the exudate, and the display interface can also selectively display the exudate flow rate data.
  • the exudate flow rate can be in milliliters per second (mL/s), milliliters per minute (mL/Min), milliliters per hour (mL/H), liters per second (L/S), liters per minute (L/Min) Expressed in any of L/H (L/H).
  • the receiving unit 92 when there is no liquid at the position where the exudate volume detecting module 9 is located in the liquid collecting bottle 5, the receiving unit 92 can receive the electromagnetic wave signal or the acoustic wave signal, where the exudate volume detecting module 9 is located.
  • the receiving unit 92 cannot 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 determined that the position of the exudate volume 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 exudate volume detecting module 9 is stagnant.
  • 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 exudate volume detecting module 9 is located.
  • the receiving unit 92 can not receive the electromagnetic wave signal or the acoustic wave signal, and then according to whether the receiving unit 92 receives the electromagnetic wave signal or the acoustic wave signal, determines the location of the exudate volume detecting module 9 The position is stagnation with liquid, thereby achieving the purpose of detecting the amount of liquid in the liquid collection bottle 5.

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Vascular Medicine (AREA)
  • Electromagnetism (AREA)
  • Anesthesiology (AREA)
  • General Physics & Mathematics (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

L'invention concerne un système de traitement des plaies par pression négative pouvant détecter et afficher le volume d'exsudats de plaie comportant un flacon (5) collecteur pour recueillir les exsudats de plaie, un dispositif (8) de traitement des plaies par pression négative comportant une source (6) de pression négative et un contrôleur (7), un kit pour soigner les plaies afin de remplir et refermer la plaie, qui communique avec le flacon (5) collecteur par un tube (4) de liaison. Selon l'invention, le système comporte en outre un module (9) de détection du volume d'exsudats pour détecter le volume d'exsudats dans le flacon (5) collecteur, une unité de stockage pour stocker le volume d'exsudats en fonction du temps, et une interface (12) d'affichage pour afficher les données de temps et le volume d'exsudats.
PCT/CN2010/077054 2010-09-03 2010-09-17 Système de traitement des plaies par pression négative pouvant détecter et afficher le volume d'exsudats Ceased WO2012027915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102740727A CN101940804B (zh) 2010-09-03 2010-09-03 可检测并显示渗出液体积的负压伤口治疗系统
CN201010274072.7 2010-09-03

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Publication Number Publication Date
WO2012027915A1 true WO2012027915A1 (fr) 2012-03-08

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CN (1) CN101940804B (fr)
WO (1) WO2012027915A1 (fr)

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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
US10556045B2 (en) 2014-12-30 2020-02-11 Smith & Nephew, Inc. Synchronous pressure sampling and supply of negative pressure in negative pressure wound therapy
US10744239B2 (en) 2014-07-31 2020-08-18 Smith & Nephew, Inc. Leak detection in negative pressure wound therapy system
US11315681B2 (en) 2015-10-07 2022-04-26 Smith & Nephew, Inc. Reduced pressure therapy device operation and authorization monitoring
US11357906B2 (en) 2016-02-12 2022-06-14 Smith & Nephew, Inc. Systems and methods for detecting operational conditions of reduced pressure therapy
US11602461B2 (en) 2016-05-13 2023-03-14 Smith & Nephew, Inc. Automatic wound coupling detection in negative pressure wound therapy systems
US12090264B2 (en) 2012-05-22 2024-09-17 Smith & Nephew Plc Apparatuses and methods for wound therapy
US12133789B2 (en) 2014-07-31 2024-11-05 Smith & Nephew, Inc. Reduced pressure therapy apparatus construction and control
US12280203B2 (en) 2019-10-03 2025-04-22 T.J.Smith And Nephew, Limited Apparatuses and methods for negative pressure wound therapy

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CN202236824U (zh) * 2011-08-29 2012-05-30 惠州市华阳医疗电子有限公司 具有渗出液流速报警功能的负压伤口治疗系统
CN102430186A (zh) * 2011-08-29 2012-05-02 惠州市华阳医疗电子有限公司 具有渗出液流速报警功能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
CN106178148A (zh) * 2016-06-30 2016-12-07 昆山韦睿医疗科技有限公司 一种伤口渗出液重量检测方法、装置及负压治疗系统
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US10086216B2 (en) 2010-10-12 2018-10-02 Smith & Nephew, Inc. Medical device
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