Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
  • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H1/00—Generating plasma; Handling plasma
  • H05H1/24—Generating plasma
  • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
  • H05H1/2418—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the electrodes being embedded in the dielectric
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
  • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
  • A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H1/00—Generating plasma; Handling plasma
  • H05H1/24—Generating plasma
  • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2240/00—Testing
  • H05H2240/10—Testing at atmospheric pressure
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2240/00—Testing
  • H05H2240/20—Non-thermal plasma
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2245/00—Applications of plasma devices
  • H05H2245/30—Medical applications
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2245/00—Applications of plasma devices
  • H05H2245/30—Medical applications
  • H05H2245/34—Skin treatments, e.g. disinfection or wound treatment
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2245/00—Applications of plasma devices
  • H05H2245/30—Medical applications
  • H05H2245/36—Sterilisation of objects, liquids, volumes or surfaces
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2245/00—Applications of plasma devices
  • H05H2245/40—Surface treatments
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2277/00—Applications of particle accelerators
  • H05H2277/10—Medical devices
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
  • H05H2277/00—Applications of particle accelerators
  • H05H2277/14—Portable devices

Definitions

• the invention relates to a flat flexible support arrangement with a contact surface formed on the body region of a living being and at least one arranged above the support surface electrode and the at least one electrode embedding dielectric, wherein the at least one electrode for forming a dielectrically impeded plasma, a supply line for has a high alternating voltage.
• a wound support arrangement such a flat flexible support arrangement is known as a wound support arrangement.
• the dielectric barrier plasma formed on the wound has a germicidal effect and provides improved wound healing, as wound infections can be ruled out if the plasma is generated at sufficient intervals for a period of time. It is known to design the corresponding wound dressing arrangement in such a way that wound secretion is sucked off and, if required, a certain negative pressure effect is exerted on the wound.
• a wound-healing-promoting fluid can also be brought into the area of the wound.
• the present invention has for its object to further improve the support arrangement to an improved and controlled plasma treatment of the body area.
• the flat flexible support arrangement of the kind mentioned in the opening paragraph is characterized by at least one integrated sensor for determining at least one parameter of the body region.
• the support arrangement thus contains at least one sensor with which the body region can be monitored. It is possible that a sensor is used, which reacts physically or chemically, thereby causing a readable display in the form of an optical change (color, transparency, etc.). For example, the pH value can be checked by a sensor in the manner of a reagent paper (for example litmus paper) and displayed by changing the color. But it is also possible and useful for the display of various parameters when at least one integrated sensor is connected to an electrical voltage, by its function or the evaluation of the sensor signal is made possible. This has the advantage that a warning or a control, for example the plasma treatment, is automatically possible as a function of the measured parameter.
• sensors it is possible, for example, to measure the perfusion in the body region with miniature sensors integrated in the support arrangement, for example by measuring the oxygen saturation.
• miniature sensors which operate with wavelengths in the visible and infrared range, are known and therefore need not be explained in detail here.
• the rise in temperature can be an indicator of an emerging or resulting inflammation, especially in one
• a color change in the body region can be detected by optical measurement techniques.
• appropriate light-emitting diodes and phototransistors which react to a specific color spectrum, it can be determined, for example, whether the redness of a wound in the healing process goes back or is increased again by an infection.
• the senor determines the pH value in the body region.
• the determination of the measured values by the at least one sensor is particularly advantageous if the treated body area represents a wound.
• the plasma treatment can be used to promote wound healing and, if necessary controlled by the measured values, to repeat it at suitable intervals without the support arrangement having to be removed from the wound.
• the support arrangement is also suitable for the treatment of areas of the body that are not formed as a wound. Even with an intact skin surface, for example, the treatment of a microcirculation disorder, and thus an oxygen deficiency, or, for example, a skin infection may be useful. Even for an intact skin surface which has not developed into a wound, the at least one sensor during treatment can provide important information, for example by measuring the oxygen saturation, the temperature, skin reddening and / or a pH.
• the measured values detected by the at least one sensor can be transmitted via a connected cable or also via wireless data transmission, for example according to the Bluetooth standard, and evaluated or buffered immediately.
• the intermediate storage can also be carried out in a memory chip in the support arrangement, so that the measured values can be read out during a regular visit of the body area.
• the at least one sensor may also be used to control the plasma treatment while the rest assembly rests on the body region concerned. For example, when a low oxygen saturation is detected, the plasma discharge can be started to positively influence the healing or treatment process.
• the power supply for the at least one sensor can be effected via a separate cable, via which the at least one electrode of the support arrangement is supplied with a high voltage. It is conceivable to derive the voltage supply for the at least one sensor and the microprocessor which activates it and possibly evaluating it from the high voltage for the plasma treatment. However, the power supply would then only be available during the plasma treatment. The measured values could then only be detected during the plasma treatment. Therefore, it is expedient either to transmit the power supply via its own supply cable to the at least one sensor and its control circuit in the support arrangement or to integrate a microbattery in the support arrangement, which provides the energy required for the operation of the sensors and the control circuit.
• At least two electrodes in the support arrangement which are supplied in phase opposition with the alternating high voltage, wherein the body of the treated skin surface again acts as a counter electrode.
• At least two electrodes may be provided, between which the high voltage alternating field is generated so that the plasma is formed between the electrodes and may be effective as surface plasma in the body region.
• Figure 1 a is a view of a support side of a first embodiment of a support arrangement
• Figure 1 b) is a vertical section along the line A-A in Figure 1 c);
• Figure 2a is a view on a support side of a second embodiment of a support arrangement
• FIG. 2b shows a vertical section along the line A-A in FIG. 2c);
• FIG. 2c is a horizontal section along the line BB in Figure 2b);
• FIG. 2 d) shows a separate illustration of the electrodes with electronic components, supply batteries and connecting lines of the second embodiment.
• FIG. 1 shows a substantially rectangular support arrangement with a planar rectangular dielectric 1, which extends on one side into a web-shaped projection 2.
• two planar electrodes 3 are embedded side by side, the surfaces of which are shown hatched within the dielectric 1 in FIG.
• the electrodes 3 thus do not extend to the edge of the dielectric 1, since they are also surrounded on the edge by the dielectric 1 and should therefore be completely insulated to the outside.
• the electrodes 3 extend in each case with a flat conductor track 4 into the web-shaped projection 2, so that the electrodes 3 can be supplied with the alternating high voltage required for plasma generation at the web-shaped projection 2.
• the electrodes 3 in the dielectric 2 are separated by a distance 5, so that the distance forms a central strip in the dielectric in which no electrodes 3 are located.
• the dielectric has regularly arranged through holes 6, which are also located in a circumferential edge 7 of the dielectric 1, which is free of the electrodes 3.
• Adjoining the edge 7 of the dielectric 1 is an encircling strip 8 which, with a small thickness, is designed to be particularly flexible and adhesive on its underside in order to enable the attachment of the wound dressing to the skin, possibly around a wound.
• the through holes 6 of the dielectric also extend through the electrodes 3 so that they pass through the dielectric 1 from a lower support surface 9 to an upper side 10. For example, wound secretions can be sucked through the passage openings 6 when the support arrangement is acted on and covered by a vacuum source on the upper side 10.
• Respective through-holes 1 1 of the electrodes 3 are respectively aligned with the through-holes 6 of the dielectric. These through-holes 11 have a larger diameter than the through-holes 6 so that the edge of the through-holes 11 of the electrodes 3 is covered by dielectric material when the through-holes 6 of the dielectric 1 form a smooth continuous channel with a constant cross-section.
• the support surface 9 of the dielectric is provided below the electrodes 3 with intersecting webs 12 forming a grid, which in the illustrated exemplary embodiment delimit open square chambers 13 within the dielectric 2 in relation to the support surface 9.
• the chambers 13 represent airspaces in which the plasma is formed below the electrodes 3 when the electrodes 3 are provided with a suitable high voltage.
• the electrodes 3 are further covered with a layer of the dielectric 1 toward the chambers 13. Centered in the chambers 13 are the through holes 6 of the dielectric.
• the free edges of the webs 12 thus together form the support surface 9 for the support arrangement.
• sensors 14 are arranged at equal distances from each other.
• the sensors 14 are embedded in the dielectric 1.
• the dielectric 1 is produced from two layers 15, 16.
• the bottom one Layer 15 formed with the limited by the webs 13 chambers 12, wherein the upper surface of the lower layer 15 is a continuous insulating surface.
• the sensors 14 and the electrodes 3 are applied, so that the sensors 14 and the electrodes 3 are completely embedded by the application of the upper layer 16.
• the material of the electrodes 3 may be by metallic films, but also by a layer of a plastic material with conductive additives, wherein the plastic material may be the material of the dielectric.
• connection of the two layers 15, 16 of the dielectric 1 takes place thermally in a suitable manner, in that the lower layer 15 is slightly superficially melted when the upper layer is applied, whereby a material-bonding connection is achieved.
• the dielectric 1 can also be produced in one piece in a single injection molding process, when the electrodes 3 and the sensors 14 are inserted into the tool.
• a corresponding conductor track can be laid in the web-shaped approach and the contacting take place there.
• the sensors 14 may be configured as optical sensors so that they do not require direct contact with the skin of the patient. However, it is also possible to form the dielectric beneath the sensors without chambers 12 and to terminate the sensors in alignment with the support surface 9. In this case, the sensors 14 are already cast during the production of the lower layer 15 of the dielectric 1.
• FIG. 2 corresponds in essential parts of the embodiment in Figure 1, so that corresponding parts are provided with the same reference numerals.
• a dielectric 1 is surrounded by a strip 8 which is used for attachment to the skin.
• electrodes 3 'are provided which are not arranged here as a contiguous electrode surfaces side by side but comb-shaped, wherein the tines of the two comb-shaped electrodes 3' are antiparallel entangled with each other. This results in a distance 5 'between the electrodes 3 ', which runs meandering.
• the dielectric 1 is provided with through-holes 6 in the region of the electrodes 3 '. Where the through-holes 6 extend through electrodes 3 ', the electrodes 3' have larger through-holes 11.
• the sensors 14 are arranged in mutually parallel sections of the meander-shaped distance 5 here on a center line.
• this support arrangement does not require an external power supply, but integrated into the dielectric has a battery assembly 17 of three micro-batteries, of which two conductors 18 lead to a microcomputer 19, at whose output a controller 20 and then a high voltage stage 21st is connected with two transformer coils. At the output of the high voltage stage 21, the two electrodes 3 'are connected via conductor tracks 18.
• the sensors can be connected in a customary manner (not shown) to the microcomputer 19 with which the data measured by the sensors 14 can be stored or evaluated and optionally displayed.
• FIG. 2 b shows that for the battery arrangement 17 as well as for the arrangement of the microcomputer 19, controller 20 and high voltage stage 21, the dielectric with thickenings 22, 23 is formed in order to be able to receive the corresponding components within the dielectric 1.
• a suitable interface may be appropriate to read data from the microcomputer 19 can.
• the sensors (14) or at least one of them can also manage without power supply if they react physically or chemically to body parameters to be monitored and thus an optical or, if appropriate, generate electrical signal.
• the optical signal may consist of a visible change in the material as a function of the environmental parameter, as is known from indicator papers for the pH, for temperatures, etc.
• An electrical signal can be formed without voltage supply by a piezoelectric sensor, for example, if, for example, a pressure situation in the body region is checked. The electrical signal can then be evaluated in a conventional manner.
• the output signals of the sensors can be transmitted to an evaluation stage within the support arrangement or else to an external evaluation arrangement. This transmission can take place via a line or also wirelessly via a short-distance communication (for example according to the Bluetooth standard).

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• Engineering & Computer Science (AREA)
• Plasma & Fusion (AREA)
• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Surgery (AREA)
• Life Sciences & Earth Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Animal Behavior & Ethology (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Biomedical Technology (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Otolaryngology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Electrotherapy Devices (AREA)
• Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
• Measuring And Recording Apparatus For Diagnosis (AREA)
• Plasma Technology (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2017
  • 2017-03-28 DE DE102017106570.9A patent/DE102017106570A1/de active Pending
  • 2017-05-31 US US16/497,884 patent/US11589450B2/en active Active
  • 2017-05-31 BR BR112019014750-0A patent/BR112019014750B1/pt active IP Right Grant
  • 2017-05-31 JP JP2019540337A patent/JP6942378B2/ja active Active
  • 2017-05-31 EP EP17734636.8A patent/EP3603349A1/de active Pending
  • 2017-05-31 RU RU2019125157A patent/RU2749912C2/ru active
  • 2017-05-31 CN CN201780086185.4A patent/CN110268807A/zh active Pending
  • 2017-05-31 WO PCT/DE2017/100461 patent/WO2018177448A1/de unknown

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