Sinus tract treatment tube assembly and sinus tract treatment device

Abstract

The invention relates to the technical field of medical instruments, and provides a sinus tract treatment tube assembly and a sinus tract treatment device.The sinus tract treatment tube assembly comprises a tube body and a plasma generator; the catheter body comprises a catheter body and a treatment end which are connected with each other, and the treatment end is suitable for being inserted into the sinus tract; the plasma generator is arranged at the treatment end and suitable for being connected with the power module; the plasma generator comprises a negative electrode layer, a dielectric barrier layer and a positive electrode layer which are arranged in a stacked mode, or the plasma generator comprises a positive electrode and a negative electrode which are arranged in a coplanar mode. The sinus tract treatment tube assembly provided by the invention not only has drainage and flushing functions, but also has a plasma treatment function, can play a powerful bactericidal role, and promotes wound healing of a wound surface.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a sinus tract treatment tube assembly and a sinus tract treatment device. Background Art

[0002] Deep tissue sinus tracts often occur in various skin and soft tissue injuries, such as trauma, burns, bedsores, diabetic foot, and incisions that are difficult to heal after surgery. Sinus tracts refer to potential blind tubes that are formed when the body tissues are infected and necrotic and discharged from the body through the body surface. They open to the body surface and are not connected to the hollow organs in the body. They can occur in soft tissues, fat, muscles, and even bones. Common examples include abdominal wall sinus tracts caused by poor drainage after infection of abdominal wall incisions or foreign bodies left in the incisions, chronic sinus tracts caused by bone necrosis caused by fractures or other reasons, and chronic sinus tracts caused by foreign bodies left after trauma or surgery.

[0003] Clinically, deep wounds caused by diseases such as serous mastitis and anal fistula present many thorny problems. These wounds often have a lot of exudate, which not only affects the healing environment of the wound, but also easily breeds bacteria and leads to infection. Due to the presence of infection and the depth of the wound, the wound healing process is extremely slow, and long-term drainage is required to keep the wound clean. However, existing treatment methods only exist at the drainage level and cannot provide further treatment effects for the wound. Summary of the invention

[0004] The present invention provides a sinus tract treatment tube assembly and a sinus tract treatment device to solve the above technical defects in the prior art. The sinus tract treatment tube assembly not only has drainage and flushing functions, but also has an additional plasma treatment function, which can exert a strong bactericidal effect and promote wound healing of the wound surface.

[0005] The first aspect of the present invention provides a sinus tract treatment tube assembly, comprising a tube body and a plasma generator.

[0006] The tube body comprises a tube main body and a treatment end connected to each other, wherein the treatment end is suitable for being inserted into the sinus tract; The plasma generator is arranged at the treatment end and is suitable for connecting to a power module. The plasma generator comprises a negative electrode layer, a dielectric barrier layer and a positive electrode layer which are stacked, or the plasma generator comprises a positive electrode and a negative electrode which are coplanarly arranged.

[0007] According to the sinus tract treatment tube assembly provided by the present invention, the plasma generator further comprises a protective layer, the protective layer is arranged on the surface of the positive electrode layer or the negative electrode layer, and the protective layer is suitable for contacting the sinus tract wound surface.

[0008] According to the sinus tract treatment tube assembly provided by the present invention, the surface of the protective layer is flush with the surface of the tube body.

[0009] According to the sinus tract treatment tube assembly provided by the present invention, a drainage channel is configured inside the tube body, the drainage channel extends to the treatment end, and the drainage channel is suitable for connecting a drainage device.

[0010] The sinus tract treatment tube assembly provided by the present invention further comprises a flushing tube, wherein the flushing tube is arranged inside the tube body, or the flushing tube and the tube body are arranged in parallel; The tube body is internally configured with a drainage channel, and the drainage channel is suitable for connecting a drainage device. The flushing tube is internally configured with a flushing channel, and the flushing channel is suitable for connecting a flushing device.

[0011] According to the sinus treatment tube assembly provided by the present invention, the dielectric barrier layer includes a flexible dielectric barrier layer, the shape of the dielectric barrier layer is adapted to the shape of the treatment end, and the negative electrode layer and the positive electrode layer are adapted to the shape of the dielectric barrier layer.

[0012] According to the sinus tract treatment tube assembly provided by the present invention, the treatment end is detachably connected to the tube body; and / or the treatment end is suitable for telescoping to change its own length.

[0013] According to the sinus tract treatment tube assembly provided by the present invention, the treatment end is provided with a plurality of drainage grooves in an array along its axis, the drainage grooves extend along the axial direction of the treatment end, and the drainage grooves penetrate the negative electrode layer, the dielectric barrier layer and the positive electrode layer; And / or, a plurality of drainage holes are arranged at intervals on the tube wall of the treatment end, and the drainage holes are arranged through the negative electrode layer, the dielectric barrier layer and the positive electrode layer.

[0014] A second aspect of the present invention provides a sinus tract treatment device, comprising a drainage device and any one of the sinus tract treatment tube assemblies, wherein a tube body of the sinus tract treatment tube assembly is connected to the drainage device.

[0015] The sinus treatment device provided according to the present invention also includes a power supply module, a control module, a power regulation module and a monitoring module. The control module is electrically connected to the power supply module, the drainage device, the power regulation module and the monitoring module respectively. The control module is used to control the power supply module, the power regulation module and the drainage device to perform corresponding work according to the data information collected by the monitoring module.

[0016] The sinus tract treatment tube assembly provided by the present invention integrates a plasma generator at the treatment end of the tube body, and the plasma generator includes a negative electrode layer, a dielectric barrier layer and a positive electrode layer arranged in a stacked manner, or the plasma generator includes a positive electrode and a negative electrode arranged in a coplanar manner. When the power module supplies power to the negative electrode layer (negative electrode) and the positive electrode layer (positive electrode), plasma is generated between the negative electrode layer (negative electrode) and the positive electrode layer (positive electrode) for treating the sinus tract wound surface. As a result, the sinus tract treatment tube assembly not only has a drainage function, but also has an additional plasma treatment function, which can exert a strong bactericidal effect and promote wound healing of the wound surface.

[0017] Because plasma contains a large number of active particles, such as ions, electrons, free radicals, etc. These active particles can directly react with the cell walls, cell membranes or nucleic acids of microorganisms such as bacteria and viruses, destroying their structures, thereby achieving efficient sterilization and disinfection functions. In addition, plasma can also promote coagulation and wound healing by activating cell signaling pathways and promoting the release of growth factors. In a humid environment with a lot of exudate, the interaction between plasma and liquid can also produce plasma water, which contains a variety of active particles with special effects, including hydroxyl radicals, hydrogen peroxide, nitrate ions and nitrite ions, which further exert bactericidal efficacy. Therefore, the sinus treatment tube assembly provided in an embodiment of the present invention can effectively treat deep wounds and sinuses with a lot of exudate, easy infection and difficult healing.

[0018] The sinus tract treatment device provided by the present invention has all the above advantages because it includes the above-mentioned sinus tract treatment tube assembly, and can adjust the discharge power (energy density), frequency and duration of the plasma generator according to the type and size of the sinus wound to perform targeted sterilization treatment on the affected area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of a sinus treatment tube assembly provided by an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the structural decomposition of a sinus treatment tube assembly provided by an embodiment of the present invention.

[0022] Figure 3 It is an axonometric cross-sectional view of a sinus treatment tube assembly provided in one embodiment of the present invention.

[0023] Figure 4 It is a cross-sectional view of a sinus treatment tube assembly provided in one embodiment of the present invention.

[0024] Figure 5 It is a schematic structural diagram of a sinus treatment tube assembly provided in another embodiment of the present invention.

[0025] Figure 6 It is a partial structural schematic diagram of a sinus treatment tube assembly provided in another embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of the structural decomposition of a sinus treatment tube assembly provided in yet another embodiment of the present invention.

[0027] Figure 8 It is a control block diagram of the sinus tract treatment device provided in an embodiment of the present invention.

[0028] Reference numerals: 10. Tube body; 11. Tube body; 12. Treatment end; 121. Drainage groove; 122. Drainage hole; 13. Drainage tube; 14. Flushing tube; 15. First connecting piece; 16. Second connecting piece; 17. Extension tube; 20. plasma generator; 21. negative electrode layer; 22. dielectric barrier layer; 23. positive electrode layer; 24. protective layer; 25. discharge part; 30. Power supply module; 40. Control module; 50. Power regulation module; 60. Monitoring module. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0031] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0033] In clinical practice, the treatment of deep wounds and sinus tracts with a lot of exudate, such as serous mastitis and anal fistula, mainly relies on drainage. Common drainage devices include ordinary drainage tubes, rubber drainage tubes, gauze drainage strips, and negative pressure closed drainage (VSD) technology.

[0034] Among them, drainage tubes and drainage strips rely on the principles of siphon and gravity and are mainly used in situations where the amount of exudate is small. They only focus on the function of wound drainage. When faced with deep wounds with a lot of exudate and easy infection, they lack the ability to process the exudate, and are unable to sterilize and disinfect the wound while draining to promote wound healing, failing to fundamentally solve the problem of difficult wound healing.

[0035] The negative pressure drainage device is a medical device widely used in clinical treatment of deep wounds and sinus tracts. It is mainly composed of a negative pressure source, a drainage tube, and a dressing. A continuous negative pressure environment is generated at the wound or sinus tract through the negative pressure source; under the action of negative pressure, the exudate, necrotic tissue, etc. in the wound or sinus tract can be effectively drained to the outside of the body. Unlike the above-mentioned drainage tubes and drainage strips, the negative pressure drainage device has a certain therapeutic effect. In principle, a continuous negative pressure environment can promote local blood circulation, that is, negative pressure can dilate microvessels and increase local blood perfusion, which is conducive to providing more nutrients and oxygen to the wound and accelerating the repair process of tissues. And negative pressure can reduce tissue edema, reduce the breeding ground for bacteria, and reduce the risk of infection. And during the negative pressure adsorption process, some necrotic tissue and bacteria can be removed together, which is conducive to the cleaning and healing of the wound.

[0036] However, the negative pressure drainage device mainly relies on negative pressure suction to achieve drainage and partial treatment effects. The treatment effect on the wound surface is more based on physical changes, such as improving blood circulation, removing some necrotic tissue, etc. It lacks a direct sterilization and disinfection mechanism for the wound surface, cannot treat stubborn bacterial infections, and has limited treatment effects. To this end, an embodiment of the present invention provides a sinus treatment tube assembly that can be applied to a sinus treatment device and can achieve better treatment effects while draining.

[0037] Figure 1 It is a schematic diagram of the structure of a sinus treatment tube assembly provided by an embodiment of the present invention. Figure 2 It is a schematic diagram of the structural decomposition of a sinus treatment tube assembly provided by an embodiment of the present invention.

[0038] See also Figure 1 and Figure 2 The present invention provides a sinus tract treatment tube assembly, which is used to transfer liquid or gas in the body to the outside of the body, and is mainly used to eliminate abnormal accumulation in the body, such as clearing pus, blood and exudate from surgical incisions, trauma sites or infection sites, and preventing the spread of local inflammation; when there is water accumulation in the pericardium, pleural cavity and abdominal cavity, the sinus tract treatment tube assembly is introduced to extract the effusion, reduce the burden on the heart and lungs, and protect the functions of important organs. The sinus tract treatment tube assembly can also be used to maintain a normal physiological environment, such as helping to clear respiratory secretions and prevent lung infections.

[0039] The sinus treatment tube assembly includes a tube body 10 and a plasma generator 20. The tube body 10 includes a tube body 11 and a treatment end 12. The treatment end 12 is arranged at one end of the tube body 11. The treatment end 12 is suitable for being inserted into the sinus. The other end of the tube body 11 is suitable for connecting a drainage device. The plasma generator 20 is arranged at the treatment end 12. The plasma generator 20 is suitable for connecting a power module, which is equivalent to arranging the plasma generator 20 at the end of the tube body 11. It can treat complex cases such as infectious sinuses, difficult-to-heal wounds, and deep tissue inflammation. It can achieve the purpose of disinfection and sterilization, promoting tissue repair, reducing inflammatory reactions, and promoting blood circulation.

[0040] The plasma generator 20 includes a negative electrode layer 21, a dielectric barrier layer 22, and a positive electrode layer 23 which are stacked. The negative electrode layer 21 can be attached to the outer surface of the treatment end 12, the dielectric barrier layer 22 is arranged on the surface of the negative electrode layer 21, and the positive electrode layer 23 is arranged on the surface of the dielectric barrier layer 22, that is, the plasma generator 20 includes a negative electrode layer 21, a dielectric barrier layer 22, and a positive electrode layer 23 which are stacked from the inside to the outside, and the negative electrode layer 21, the dielectric barrier layer 22, and the positive electrode layer 23 are stacked to form a dielectric barrier discharge similar to a "sandwich" structure. Dielectric barrier discharge (DBD discharge) does not require the electrode to directly contact the gas, but uses an insulating medium to isolate the electrode and the gas, which can prevent electrode corrosion and extend the life of the device. When the negative electrode layer 21 and the positive electrode layer 23 are suitable for connecting to a power module, the power module supplies power to the negative electrode layer 21 and the positive electrode layer 23 to form a plasma discharge zone at the treatment end 12.

[0041] Moreover, dielectric barrier discharge can work at relatively low temperatures, making it suitable for processing sensitive or fragile materials. It can produce a variety of active particles including high-energy electrons, ions, excitons, free radicals, and reactive oxygen species, which can destroy bacterial cell membranes, inhibit the reproduction of pathogenic microorganisms, effectively fight against multiple drug-resistant bacteria, and reduce the risk of infection. Reactive oxygen species participate in stimulating fibroblast activity, promoting collagen synthesis and angiogenesis, accelerating the regeneration of damaged tissues, and shortening healing time. The antioxidants and anti-inflammatory factors released by plasma can reduce the level of inflammatory mediators, alleviate local symptoms such as redness, swelling, and pain, improve the microenvironment, and facilitate recovery.

[0042] Among them, the DBD discharge device can be designed into different shapes and sizes according to the needs of the application scenarios, which is convenient for integration into various systems. The discharge intensity can be adjusted by changing parameters such as voltage, frequency, gas type and pressure to adapt to different application needs.

[0043] The plasma generator 20 may also include a positive electrode or a negative electrode arranged in the same plane. Compared with other discharge modes, the coplanar electrodes can achieve stable and consistent energy transfer over a wider range, avoid the formation of hot spots, and ensure that the treatment area is heated evenly. It is conducive to the generation of a large number of reactive oxygen species (ROS), reactive nitrogen species (RNS) and other charged particles, effectively promoting biological effects such as wound healing, anti-inflammatory and analgesic.

[0044] When performing the corresponding treatment, the wound surface is cleaned, foreign matter and necrotic tissue are removed, the sinus tract treatment tube assembly is correctly installed, the treatment end 12 is inserted into the affected area (wound surface), the drainage is ensured to be smooth, and the sinus tract treatment tube assembly is fixed in a predetermined position. In the process of guiding the exudate to flow out, when the negative electrode layer 21 and the positive electrode layer 23 are powered by the power module, plasma is generated between the negative electrode layer 21 and the positive electrode layer 23, and the plasma is used to treat the wound surface.

[0045] It can be understood that the sinus tract treatment tube assembly provided in the embodiment of the present invention integrates a plasma generator 20 at the treatment end 12 of the tube body 10, and the plasma generator 20 includes a negative electrode layer 21, a dielectric barrier layer 22 and a positive electrode layer 23 arranged in a stacked manner, or the plasma generator 20 includes a positive electrode and a negative electrode arranged in a coplanar manner. When the power module supplies power to the negative electrode layer 21 (negative electrode) and the positive electrode layer 23 (positive electrode), plasma is generated between the negative electrode layer 21 (negative electrode) and the positive electrode layer 23 (positive electrode) for treating the wound surface. As a result, the sinus tract treatment tube assembly not only has a drainage function, but also has an additional plasma treatment function, which can exert a strong bactericidal effect and promote wound healing of the wound surface.

[0046] Because plasma contains a large number of active particles, such as ions, electrons, free radicals, etc. These active particles can directly react with the cell walls, cell membranes or nucleic acids of microorganisms such as bacteria and viruses, destroying their structures, thereby achieving efficient sterilization and disinfection functions. In addition, plasma can also promote coagulation and wound healing by activating cell signaling pathways and promoting the release of growth factors. In a humid environment with a lot of exudate, the interaction between plasma and liquid can also produce plasma water, which contains a variety of active particles with special effects, including hydroxyl radicals, hydrogen peroxide, nitrate ions and nitrite ions, which further exert bactericidal efficacy. Therefore, the sinus treatment tube assembly provided in an embodiment of the present invention can effectively treat deep wounds and sinuses with a lot of exudate, easy infection and difficult healing.

[0047] Figure 3 It is an axonometric cross-sectional view of a sinus treatment tube assembly provided in one embodiment of the present invention.

[0048] Continue reading Figure 1 , Figure 2, and also see Figure 3 In some embodiments of the present invention, the plasma generator 20 further includes a protective layer 24, and the protective layer 24 is disposed on the surface of the positive electrode layer 23 or the negative electrode layer 21, that is, the protective layer 24 is disposed on the outer electrode layer. When the positive electrode layer 23 is located in the outer layer, the protective layer 24 is disposed on the surface of the positive electrode layer 23; when the negative electrode layer 21 is located in the outer layer, the protective layer 24 is disposed on the surface of the negative electrode layer 21.

[0049] Among them, the protective layer 24 directly contacts the wound surface, and needs to ensure biocompatibility and be able to withstand certain mechanical stress and chemical erosion to avoid damaging the wound surface after the protective layer 24 contacts the wound surface.

[0050] Therefore, the material of the protective layer 24 can be the same as that of the tube body 11 and the treatment end 12. Alternatively, the protective layer 24 can be constructed of materials safe for the human body, such as medical grade silicone, PTFE, etc., to ensure safety and comfort for long-term use.

[0051] Figure 4 It is a cross-sectional view of a sinus treatment tube assembly provided in one embodiment of the present invention.

[0052] Continue reading Figure 3 , and also see Figure 4 In some embodiments of the present invention, the surface of the protective layer 24 is flush with the surface of the pipe body 11.

[0053] In other words, the protective layer 24 and the negative electrode layer 21, dielectric barrier layer 22 and positive electrode layer 23 constituting the discharge part 25 are all embedded in the tube wall of the treatment end 12, ensuring that the surface of the protective layer 24 is flush with the surface of the tube body 11, that is, there is no protrusion, depression or irregular shape at the connection between the protective layer 24 and the tube body 11. This arrangement can reduce the friction and stimulation of the sinus treatment tube assembly on the surrounding tissues, reduce the damage to the skin, mucous membrane or internal tissues, and reduce the risk of bedsores, inflammation, pain or infection.

[0054] In some embodiments of the present invention, the shape of the discharge electrode in the plasma generator 20 is not limited to a comb shape, a grid shape, a spiral shape, and a honeycomb shape.

[0055] When a high voltage AC or DC voltage is applied between the comb-shaped electrode (positive electrode) and the ground (or negative electrode), a strong electric field will be formed between the electrodes. When the electric field strength exceeds the breakdown electric field of the gas molecules, the molecules in the air on the wound surface will be strongly ionized and decomposed into charged particles (electrons, positive ions and free radicals). The charged particles move faster under the action of the electric field, collide with other neutral molecules, and further produce more charged particles, forming an avalanche-like chain reaction. As the electron density increases, the local current increases sharply, forming a discharge channel. The high temperature and high-energy electrons in the discharge channel cause the gas molecules to be completely ionized, forming a plasma composed of ions, electrons and excited molecules. The plasma propagates outward from the discharge area through electrodynamics and thermal diffusion, effectively sterilizing the wound surface and achieving the purpose of treatment.

[0056] Among them, the edge or tip of the comb-tooth electrode has a small radius of curvature, and the electric field strength is greatly enhanced, which can lead to electric field concentration. In other words, the sharp tip of the comb-tooth electrode can locally amplify the electric field, reducing the voltage required for discharge, so that plasma discharge can be achieved at a lower energy input, thereby reducing thermal damage to surrounding tissues. In addition, the multi-tooth arrangement can form a dense discharge lattice, achieving uniform coverage over a larger area, which is suitable for scenarios such as large-area wound treatment or surface processing.

[0057] When the power module provides high voltage electricity between the spiral positive electrode and the negative electrode, an electromagnetic field in the spiral direction is generated. Under the combined action of the strong magnetic field and electric field, the gas molecules are ionized, and the electrons are stripped from the atoms to form electrons and ions. The structure of the spiral electrode guides the electrons and ions to move along the spiral path. The charge accumulation on the spiral path triggers discharge. During the discharge process, the gas molecules are transformed into a plasma state due to ionization and heating, forming a stable plasma cloud. The plasma cloud is affected by the spiral magnetic field and propels along the spiral axis, showing a spiral or vortex motion.

[0058] Since the plasma cloud generated by the spiral electrode discharge can be output in a specific direction, a magnetic component can be added to the treatment end 12. The magnetic component can generate a magnetic field, and the output direction of the plasma can be further regulated by adding an additional magnetic field, thereby providing targeted treatment for the wound that needs treatment.

[0059] The grid electrode is usually composed of a series of interwoven metal wires or strips, which alternately serve as positive and negative electrodes to form multiple intersections and gaps. When the external power module applies potential to the positive and negative electrodes respectively, a strong electric field is established in the gaps of the grid. Under the action of the electric field, the electrons in the gas molecules are pulled and begin to separate from the atoms or molecules to form free electrons. The free electrons are accelerated by the electric field and collide with more gas molecules to form new electron-ion pairs. As the electron density continues to increase, the local electric field becomes extremely strong, enough to completely break down the gas medium to form a discharge. The discharge path spreads along the gaps of the grid, forming many dispersed but connected small discharge channels, which increases the effective area covered by the plasma. In the discharge channel, a large number of electrons, positive ions and excited molecules gather to form a dense plasma cloud. The generated plasma diffuses from the discharge channel to achieve the sterilization and disinfection function of the plasma.

[0060] The honeycomb-shaped electrode generally contains a set of central electrodes (usually positive electrodes) and annular or hexagonal negative electrodes surrounding it. The gap in the middle is filled with gas medium. When a high-voltage power supply applies voltage between the central electrode and the peripheral electrodes, a non-uniform electric field is formed between the two. Due to the unique arrangement of the electrodes, the electric field is very concentrated inside each unit of the honeycomb, especially near the central electrode, forming a highly concentrated electric field gradient. The central electrode attracts free electrons and other charged particles in the surrounding space to move toward it. At the same time, the negative electrode repels these charged particles, causing charges to accumulate around the central electrode. When the electric field strength is large enough, it causes the gas medium to be ionized and form charge carriers (electrons and positive ions). The medium after breakdown forms a discharge channel. The high-energy particles in the discharge channel continue to interact with other molecules to form a large number of ions, electrons and active species, namely plasma. The plasma is not only confined to the discharge channel, but will diffuse into the wound surface to sterilize and disinfect the wound surface.

[0061] Among the above-mentioned electrodes, the fine tooth edges of the comb-tooth electrode can focus the electric field, which is suitable for the treatment of local lesions, with less damage to normal tissues around the wound, suitable for the treatment of deep skin infections, and can effectively kill bacteria without damaging healthy tissues. Since the honeycomb electrode can provide a more uniform discharge distribution and a wide plasma coverage area, it is suitable for the treatment of larger sinus tracts. Since the grid electrode has strong permeability, it is suitable for treatment deep inside the tissue or in complex morphological areas, which is conducive to the treatment that needs to penetrate into the deep tissue and can achieve deep purification and repair. Since the spiral electrode uses the spiral discharge characteristics and directional plasma flow, it can form a directional treatment effect in deep tissues. The ability to deliver plasma in a directional manner enhances the accuracy and safety of treatment and is suitable for targeted treatment.

[0062] In some embodiments of the present invention, the dielectric barrier layer 22 includes a flexible dielectric barrier layer, the shape of the dielectric barrier layer 22 is adapted to the shape of the treatment end 12, and the negative electrode layer 21 and the positive electrode layer 23 are adapted to the shape of the dielectric barrier layer 22. The surface of the treatment end 12 of the tube body 10 can be bent to be integrated with the tube body 10.

[0063] Among them, the flexible dielectric barrier layer can be a polymer film, silicone rubber, polydimethylsiloxane or fiber fabric, etc. Polymer films include polyester (PET), polyimide (PI), polytetrafluoroethylene (PTFE), etc., all of which have good dielectric properties and mechanical stability, and can withstand certain temperatures and chemical erosion. Silicone rubber has excellent softness and elasticity, a wide temperature resistance range, and is friendly to organisms. Polydimethylsiloxane is a material with good air permeability and is suitable for making plasma generators with fine structures 20. The fiber fabric can be glass fiber, carbon fiber, etc., embedded in insulating resin to form a composite material, which can maintain a certain degree of softness and enhance mechanical strength.

[0064] In some embodiments of the present invention, the treatment end 12 is detachably connected to the tube body 11. Therefore, different treatment ends 12 can be selected according to the patient's specific condition or treatment stage, such as using treatment ends 12 of different materials, sizes or special designs, to adapt to different treatment purposes.

[0065] The treatment end 12 is detachably connected to the tube body 11, and a buckle connection can be adopted, by providing a protruding buckle on the treatment end 12 and a corresponding groove or annular clamp on the tube body 11. When in use, the treatment end 12 is docked with both ends of the tube body 11, and the buckle is automatically locked in place to complete the detachable connection.

[0066] The treatment end 12 is detachably connected to the tube body 11, and a rotary locking method can also be adopted. A connector can be interference fit at the port of the tube body 11. The outer wall of the connector is provided with a thread, and the treatment end 12 is threadedly matched with the connector, that is, the treatment end 12 is indirectly connected to the tube body 11 through the connector.

[0067] The treatment end 12 and the tube body 11 can be detachably connected, and can also be connected magnetically, that is, strong magnets are embedded in the opposite ends of the treatment end 12 and the tube body 11, and the attraction of the strong magnets is used to maintain the physical connection between the treatment end 12 and the tube body 11.

[0068] In some embodiments of the present invention, the treatment end 12 is adapted to be retracted to change its own length to adapt to the treatment of sinus tracts of different depths, thereby improving the flexibility of use.

[0069] The treatment end 12 is adapted to be retractable to change its length, which can be achieved in the following ways: For example, the hose of the treatment end 12 itself adopts a multi-section retractable structure, and its length can be changed by stretching and contracting. Alternatively, the hose of the treatment end 12 is composed of several pipe sections, and each pipe section is connected by a quick connector. The number of pipe sections can be added or removed according to the use length, thereby changing the total length of the hose of the treatment end 12. Alternatively, the hose of the treatment end 12 is made of a highly elastic material, which can naturally retract to a small part of its original length, and can be manually or automatically extended to the required length when used. Alternatively, the hose of the treatment end 12 can be set in the form of a sleeve, that is, it includes an inner sleeve and an outer sleeve, the inner sleeve is connected to the tube body 11, and the outer sleeve can be slidably extended. By pulling the outer sleeve, the overall length of the hose of the treatment end 12 can be adjusted.

[0070] In some embodiments of the present invention, the treatment end 12 is not only detachably connected to the tube body 11, but the treatment end 12 is also adapted to be telescopic to change its own length. The manner of detachable connection and the manner in which the treatment end 12 is adapted to be telescopic are both described above.

[0071] Figure 5 It is a schematic structural diagram of a sinus treatment tube assembly provided in another embodiment of the present invention. Figure 6 It is a partial structural schematic diagram of a sinus treatment tube assembly provided in another embodiment of the present invention.

[0072] In some embodiments of the present invention, the treatment end 12 is provided with a plurality of drainage grooves 121 along its own axis array, the drainage grooves 121 extend along the axial direction of the treatment end 12, and the drainage grooves 121 penetrate the negative electrode layer 21, the dielectric barrier layer 22 and the positive electrode layer 23. Figures 1 to 4 shown.

[0073] In other words, small grooves arranged in spiral or linear shapes are carved along the end of the tube body 10. These grooves can ensure that liquid enters the tube body 10 from multiple directions, and the drainage process can be kept unimpeded even when there is tissue adhesion around the tube body 10.

[0074] In some embodiments of the present invention, the tube wall of the treatment end 12 is provided with a plurality of drainage holes 122 at intervals, and the drainage holes 122 penetrate the negative electrode layer 21, the dielectric barrier layer 22 and the positive electrode layer 23. Figure 6 shown.

[0075] Equivalently, at the end of the tube body 10 , a plurality of drainage holes 122 are arranged at intervals, and the drainage holes 122 ensure that liquid enters the tube body 10 from multiple directions.

[0076] In some embodiments of the present invention, a plurality of drainage grooves 121 may be arranged in an array along the axis of the treatment end 12 , and the drainage grooves 121 extend along the axial direction of the treatment end 12 . Alternatively, a plurality of drainage holes 122 may be arranged at intervals on the tube wall of the treatment end 12 .

[0077] This is equivalent to using a drainage groove 121 and a drainage hole 122 in combination at the end of the tube body 10. In addition to the drainage groove 121, a small hole can be opened on the tube wall at the end of the tube body 10 to further enhance the liquid collection capacity and ensure all-round drainage. The presence of the drainage groove 121 and the drainage hole 122 reduces the pressure on the tissue at a single point, avoiding tissue damage caused by compression of the tube wall.

[0078] In some embodiments of the present invention, a drainage channel is provided inside the tube body 11 , and the drainage channel extends to the treatment end 12 , and the drainage channel is suitable for connecting a drainage device.

[0079] The embodiment of the present invention provides a plasma generator 20 at the end of the drainage tube, which not only has a drainage function but also has a plasma treatment function, and can exert a strong bactericidal effect and promote wound healing.

[0080] Figure 7 It is a schematic diagram of the structural decomposition of a sinus treatment tube assembly provided in yet another embodiment of the present invention.

[0081] See also Figure 7 In some embodiments of the present invention, the tube body 11 can be used as a drainage tube 13, and the sinus treatment tube assembly also includes a flushing tube 14, which is arranged inside the tube body 11, or arranged in parallel with the tube body 11 to form a double-tube drainage tube.

[0082] The tube body 11 (drainage tube 13 ) is internally configured with a drainage channel, which is suitable for connecting a drainage device; the flushing tube 14 is internally configured with a flushing channel, which is suitable for connecting a flushing device.

[0083] In other words, the sinus treatment tube assembly provided in the embodiment of the present invention not only has a drainage function, but also has a flushing function, and has an additional plasma treatment function, which can exert a strong bactericidal effect and promote wound healing of the wound surface.

[0084] Therefore, the sinus wound surface can be continuously or repeatedly flushed and drained, which is convenient for the removal of exudates such as pus that are difficult to drain naturally; at the same time, by flushing in liquid (physiological saline, distilled water, or liquid medicine, etc.), the interaction between plasma and liquid can also produce plasma water, which contains a variety of active particles with special effects, including hydroxyl free radicals, hydrogen peroxide, nitrate ions and nitrite ions, which further exert the bactericidal effect. That is, the sinus treatment tube assembly provided by the embodiment of the present invention integrates wound flushing and drainage with treatment, and can perform plasma treatment while flushing and effectively draining, exerting a strong bactericidal effect and promoting wound healing.

[0085] Continue reading Figure 7Specifically, when the flushing tube 14 is disposed inside the tube body 11 (drainage tube 13 ), a flushing channel is formed inside the flushing tube 14 , and a drainage channel is formed in a gap between the drainage tube 13 and the flushing tube 14 .

[0086] A first connector 15 is fixedly provided at the end of the drainage tube 13. The first connector 15 can act as a stud and is provided with an external thread. The flushing tube 14 is a flexible hose and is inserted into the interior of the drainage tube 13 to form a double-lumen sleeve structure with the drainage tube 13. A second connector 16 is provided on the drainage tube 13. The second connector 16 can act as a nut and is provided with an internal thread that matches the external thread.

[0087] After the flushing tube 14 is inserted into the drainage tube 13, it is fixed by the cooperation of the first connecting piece 15 and the second connecting piece 16 to form an integral sinus treatment tube assembly. The walls of the flushing channel and the drainage channel in the sinus treatment tube assembly are isolated from each other, thereby ensuring that the flushing fluid and the drainage fluid flow independently.

[0088] In addition, an extension tube 17 is intersected on the side wall of the first connecting member 15, and the extension tube 17 is connected to the drainage device, which is equivalent to dividing the nested tube body into two independently arranged tube bodies from the matching position of the first connecting member 15 and the second connecting member 16, each of which is connected to a corresponding device.

[0089] In addition, the nested tube body parts may also be arranged as an independent tube body, in which two independent channels, namely a flushing channel and a drainage channel, are constructed.

[0090] The sinus tract treatment tube assembly provided in the embodiment of the present invention can be used in conjunction with a porous sponge, which is wrapped around the outer surface of the sinus tract treatment tube assembly, and the porous sponge is inserted into the sinus tract together with the sinus tract treatment tube assembly for adsorption. The sinus tract treatment tube assembly can also be used in conjunction with a sealing membrane that can provide a negative pressure closed environment.

[0091] For example: according to the size and depth of the sinus, select a sinus treatment tube assembly of appropriate diameter and length, wrap the porous sponge on the outer surface of the sinus treatment tube assembly, penetrate the sealing membrane of the sinus treatment tube assembly and slowly insert it into the sinus, and the insertion depth is determined according to the actual depth of the sinus.

[0092] After the sinus treatment tube assembly is inserted, ensure that the sinus treatment tube assembly is in a suitable position in the sinus tract, so that it can fully drain and does not cause pressure on the surrounding tissues. A medical film is used as a sealing layer to be pasted on the skin around the sinus tract to fix the sinus treatment tube assembly on the skin around the sinus tract to prevent the sinus treatment tube assembly from shifting or falling out during use. Finally, an external drainage device (such as a drainage bag or a drainage pump) is used for drainage.

[0093] Figure 8 It is a control block diagram of the sinus tract treatment device provided in an embodiment of the present invention.

[0094] See also Figure 8 The embodiment of the present invention also provides a sinus treatment device, which is a medical device for treating sinus caused by chronic infection, abscess or other diseases, and is intended to remove secretions, pus or foreign matter in the lesion area, sterilize, and promote wound healing. The sinus treatment device includes a drainage device and any one of the sinus treatment tube assemblies, and the tube body 11 of the sinus treatment tube assembly is connected to the drainage device.

[0095] The tube body 11 and the treatment end 12 of the sinus treatment tube assembly are both hollow hose-like structures. The treatment end 12 is inserted into the sinus, and the tube body 11 is exposed to the outside for connecting to a drainage device.

[0096] The drainage device may be a drainage bottle or drainage bag for manual drainage, or a negative pressure device for automatic drainage. When the drainage device is a drainage bottle or drainage bag, a connecting tube may be provided on the tube body 11, and the drainage bottle or drainage bag is connected to the connecting tube to collect the liquid flowing out of the sinus tract. In addition, a check valve may be provided on the connecting tube to prevent external air from entering the sinus tract to reduce the risk of infection.

[0097] In addition, a fixing patch or other structure may be provided on the sinus tract treatment tube assembly to stabilize the position of the sinus tract treatment tube assembly and ensure that the sinus tract treatment tube assembly will not be easily displaced.

[0098] In some embodiments of the present invention, the sinus treatment device further includes a control module 40, a power regulating module 50 and a monitoring module 60. The control module 40 is electrically connected to the power module, the power regulating module 50 and the monitoring module 60 respectively. The monitoring module 60 is a sensor and other structures. The sensor is used to collect signals such as temperature, pressure and current intensity, and feed the collected signals back to the control module 40. The control module 40 controls the discharge power, frequency and duration of the power regulating module 50, so that the discharge power (energy density), frequency and duration of the plasma generator 20 can be adjusted according to the type and size of the sinus wound, and the affected area can be sterilized in a targeted manner. Ensure that the plasma discharge is stable and controllable, and can be flexibly adjusted according to the treatment depth and range. At the same time, it can be used for precise treatment of different types of bacteria and wounds of different depths.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sinus treatment tube assembly, characterized in that: include: A tube body, comprising a tube body and a treatment end connected to each other, wherein the treatment end is suitable for being inserted into a sinus tract; A plasma generator is arranged at the treatment end and is suitable for connecting to a power module; the plasma generator comprises a negative electrode layer, a dielectric barrier layer and a positive electrode layer which are stacked, or the plasma generator comprises a positive electrode and a negative electrode which are coplanarly arranged.

2. The sinus treatment tube assembly according to claim 1, characterized in that: The plasma generator further comprises a protective layer, which is arranged on the surface of the positive electrode layer or the negative electrode layer, and is suitable for contacting the sinus tract wound surface.

3. The sinus treatment tube assembly according to claim 2, characterized in that: The surface of the protective layer is flush with the surface of the pipe body.

4. The sinus treatment tube assembly according to claim 1, characterized in that: The interior of the tube body is configured with a drainage channel, the drainage channel extends to the treatment end, and the drainage channel is suitable for connecting a drainage device.

5. The sinus treatment tube assembly according to claim 1, characterized in that: It also includes a flushing pipe, which is arranged inside the pipe body, or the flushing pipe and the pipe body are arranged in parallel; The interior of the tube body is configured with a drainage channel, which is suitable for connecting a drainage device; the interior of the flushing tube is configured with a flushing channel, which is suitable for connecting a flushing device.

6. The sinus treatment tube assembly according to claim 1, characterized in that: The dielectric barrier layer comprises a flexible dielectric barrier layer, the shape of the dielectric barrier layer is adapted to the shape of the treatment end, and the negative electrode layer and the positive electrode layer are adapted to the shape of the dielectric barrier layer.

7. The sinus treatment tube assembly according to claim 6, characterized in that: The treatment end is detachably connected to the tube body; and / or, the treatment end is adapted to be telescopic to change its own length.

8. The sinus treatment tube assembly according to any one of claims 1 to 7, characterized in that: The treatment end is provided with a plurality of drainage grooves in an array along its axis, the drainage grooves extending along the axial direction of the treatment end, and the drainage grooves penetrate the negative electrode layer, the dielectric barrier layer and the positive electrode layer; And / or, a plurality of drainage holes are arranged at intervals on the tube wall of the treatment end, and the drainage holes are arranged through the negative electrode layer, the dielectric barrier layer and the positive electrode layer.

9. A sinus treatment device, characterized in that: It comprises a drainage device and a sinus tract treatment tube assembly according to any one of claims 1 to 8, wherein a tube body of the sinus tract treatment tube assembly is connected to the drainage device.

10. The sinus treatment device according to claim 9, characterized in that: It also includes a power supply module, a control module, a power regulation module and a monitoring module. The control module is electrically connected to the power supply module, the drainage device, the power regulation module and the monitoring module respectively. The control module is used to control the power supply module, the power regulation module and the drainage device to perform corresponding work according to the data information collected by the monitoring module.

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