WO2017204682A1 - Device for plasma treatment of wounds - Google Patents
Device for plasma treatment of wounds Download PDFInfo
- Publication number
- WO2017204682A1 WO2017204682A1 PCT/RU2017/000311 RU2017000311W WO2017204682A1 WO 2017204682 A1 WO2017204682 A1 WO 2017204682A1 RU 2017000311 W RU2017000311 W RU 2017000311W WO 2017204682 A1 WO2017204682 A1 WO 2017204682A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cartridge
- channels
- axial electrode
- nozzle
- wounds
- Prior art date
Links
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
-
- 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
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
Definitions
- the invention relates to a plasma technique, namely, devices for plasma treatment of wounds and can be used in the complex treatment of chronic, infected and acute wounds, which are traumatic and purulent-necrotic lesions of soft and bone tissues of various etiologies, as well as for dissection and coagulation tissues, destruction and removal of non-viable and pathologically altered tissues during surgical operations in medical institutions.
- the prior art device for plasma treatment of wounds containing a hollow cylindrical body, a conical tip in the form of a nozzle with a central hole and a cooling circuit, and an axial electrode mounted in the body by means of a coaxial insulating cartridge with longitudinal channels (see patent RU2183946, class A61B 18 / 04, published on June 27, 2002).
- the channels are flats made on the outer surface of the cartridge and forming channels for supplying coolant.
- the axial electrode is fixed in the cartridge only in the rear of the device, and the working gas is supplied through a channel made inside the axial electrode. A lot of additional parts are used to center the electrode. Disclosure of invention
- the technical problem is the creation of a simple design that ensures the accuracy of the positioning of parts inside the housing and allows for reliable plasma generation due to the necessary location of the axial electrode, as well as the effective flow of working gas and coolant.
- it is necessary to increase the fastening strength of parts in order to increase the service life of the device with constant use, inevitably accompanied by shaking and falling of the tool.
- the proposed device for plasma treatment of wounds containing a hollow cylindrical body, a conical tip in the form of a nozzle with a central hole and a cooling circuit and an axial electrode mounted in the housing by means of a coaxial insulating cartridge with longitudinal channels, is equipped with an end sleeve in which the end part of the axial electrode is fixed and made longitudinal channels, assembled coinciding with the channels of the cartridge, moreover, the coupling and the cartridge are equipped with a working gas supply channel communicating with the Central hole nozzle channels for supplying and discharging the cooling fluid, communicating with the nozzle cooling circuit, and the power channel in which is located an electrically supplying the voltage at the conical tip.
- the channels in the coupling and the cartridge are preferably made in the form of through holes.
- the axial electrode is preferably fixed inside the coupling and the cartridge by means of a collet clamp.
- Figure 1 presents a longitudinal section of the proposed device
- figure 2 - section bb in figure 1;
- Fig. 3 is a view A of Fig. 2;
- figure 4 is a view of B in figure 2;
- figure 5 is a section GG of figure 1;
- Fig.6 is a section DD in Fig.5.
- the proposed device for plasma treatment of wounds includes the following elements:
- - conical tip 1 in the form of a nozzle with a Central hole and a cooling circuit (anode), designed to form a gas-dynamic flow of the working gas with the desired parameters;
- - axial electrode 3 (cathode), which serves as an active electrically conductive element for supplying a working current to the arc zone and electron emission;
- - collet clamp with screw 4 and sleeve 5 for adjusting the position of the axial electrode 3 along the axis of the plasma torch and its fixation;
- - cartridge 8 of a polymer of high strength and hardness for example, polyoxymethylene
- - power supply channel 16 in which a single-core copper electric wire is located, which supplies voltage to the tip 1 and exits the coupling 9 from the distal end.
- the cartridge 8 and the coupling 9 not only form a central hole for reliable fixation of the axial electrode 3, but also contain all the channels necessary for the operation of the plasma torch.
- the developed design provides simplicity and accuracy of manufacturing parts, and
- the proposed device operates as follows.
- the working gas (argon) and coolant (for example, water) are sent to the corresponding channels 14, 15 through the connecting hose, and a different voltage is applied to electrode 3, as a result of which between the electrode 3 and the tip 1 forms an arc discharge, and the formed plasma from the nozzle of the tip 1 goes out into the wound treatment area.
- argon argon
- coolant for example, water
- the use of the device in the treatment process contributes to:
- the device for plasma treatment of wounds is used in the traditional integrated treatment process in conjunction with the antibiotic, anesthetic, dressings and materials used in the clinic.
- Wound treatment using the proposed device is performed after removing the old dressing and cleaning the wound with an antiseptic solution (hydrogen peroxide, chlorhexidine, miramis [gin, etc.) and before applying a new sterile dressing using medicinal applications.
- an antiseptic solution hydrogen peroxide, chlorhexidine, miramis [gin, etc.
- volumetric support parts (cartridge 8 and clutch 9), occupying the entire space inside the housing 6 and determining the exact position of all the main elements of the plasma torch (axial electrode 3 and channels 14-16) significantly increases the reliability of fixing the elements of the device relative to each other, which increases its service life and improves the uptime.
- the invention provides the ability disconnecting the device from the hose, which facilitates and simplifies the processes of its setup and maintenance.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2016120637 | 2016-05-26 | ||
RU2016120637 | 2016-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017204682A1 true WO2017204682A1 (en) | 2017-11-30 |
Family
ID=60411430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2017/000311 WO2017204682A1 (en) | 2016-05-26 | 2017-05-16 | Device for plasma treatment of wounds |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2017204682A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988001218A1 (en) * | 1986-08-11 | 1988-02-25 | 2-I Moskovsky Gosudarstvenny Meditsinsky Institut | Device for plasma-arc cutting of biological tissues |
WO1992019166A1 (en) * | 1991-04-15 | 1992-11-12 | Nauchno-Issledovatelsky Institut Energeticheskogo Mashinostroenia Moskovskogo Gosudarstvennogo Tekhnicheskogo Universiteta Imeni N.E.Baumana | Device for plasma surgical treatment of biological tissues |
RU2183946C2 (en) * | 1997-10-15 | 2002-06-27 | Козлов Николай Павлович | Device for treating biological tissue with plasma |
-
2017
- 2017-05-16 WO PCT/RU2017/000311 patent/WO2017204682A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988001218A1 (en) * | 1986-08-11 | 1988-02-25 | 2-I Moskovsky Gosudarstvenny Meditsinsky Institut | Device for plasma-arc cutting of biological tissues |
WO1992019166A1 (en) * | 1991-04-15 | 1992-11-12 | Nauchno-Issledovatelsky Institut Energeticheskogo Mashinostroenia Moskovskogo Gosudarstvennogo Tekhnicheskogo Universiteta Imeni N.E.Baumana | Device for plasma surgical treatment of biological tissues |
RU2183946C2 (en) * | 1997-10-15 | 2002-06-27 | Козлов Николай Павлович | Device for treating biological tissue with plasma |
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