Wound cleaning device and cleaning device body
The wound cleaning device addresses the inefficiency and aspiration risks of conventional cleaners by using a mouthpiece with a liquid reservoir to store waste liquid, effectively cleaning wounds and preventing leakage and aspiration.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NAGASAKI UNIVERSITY
- Filing Date
- 2024-12-24
- Publication Date
- 2026-07-06
Smart Images
Figure 2026111583000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a wound cleaning device and a cleaning device body.
Background Art
[0002] In oral diseases such as drug-related osteonecrosis of the jaw and radiation-induced osteonecrosis of the jaw, there are many situations where regular local cleaning of the wound area is required. Currently, the main methods for cleaning the wound area are gargling at home and regular cleaning by experts. However, it is difficult to remove residual food debris in the wound area by gargling, and currently, cleaning of the wound area by experts is necessary. In this case, frequent hospital visits are required, which increases the burden on both patients and medical institutions.
[0003] To reduce the burden on both patients and medical institutions, an oral cleaner that automatically cleans the oral cavity has been developed. Patent Document 1 describes an oral cleaner that includes at least a mouthpiece for injecting a cleaning liquid into the oral cavity, a core suction part for sucking cleaning waste liquid in which the cleaning liquid and saliva are mixed from the oral cavity, an inflow channel through which the cleaning liquid flows, and an outflow channel through which the cleaning waste liquid flows.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in conventional oral cleaners, the cleaning target is the entire oral cavity, and they do not perform cleaning specialized for the wound area. It is difficult to completely remove residual food debris in the wound area. In addition, in conventional oral cleaners, since the cleaning liquid and cleaning waste liquid flow into the entire oral cavity, there is a problem that aspiration may occur due to the cleaning liquid and cleaning waste liquid when the patient is an elderly person or a person with a disability whose swallowing function has declined.
[0006] Therefore, the present invention aims to provide an oral wound cleaning device and a cleaning device body that can clean wounds in the oral cavity and prevent aspiration of the cleaning solution and wastewater by the elderly and others. [Means for solving the problem]
[0007] The wound cleaning device according to the present invention is An instrument for cleaning wounds in the oral cavity, A mouthpiece comprising a tooth protection portion that can be fitted and fixed to the teeth, and a cleaning portion having a water supply portion that sprays cleaning solution onto the wound and a water intake portion that sucks up waste liquid containing food debris removed by the spraying of the cleaning solution, A supply source that supplies the cleaning liquid to the water supply unit, A recovery unit capable of storing or discharging the waste liquid after washing, A liquid supply line having one end connected to the water supply unit and the other end connected to the supply source, A waste liquid line having one end connected to the water absorption section and the other end connected to the recovery section, Equipped with, The cleaning portion of the mouthpiece has a liquid reservoir that does not directly touch the wound and forms a space between the wound and the surrounding gum tissue in which the waste liquid can be stored.
[0008] Furthermore, the cleaning device body according to the present invention is A cleaning device body for cleaning wounds in the oral cavity, A dental arch protection part that can be fitted and fixed to the dental arch, The mouthpiece comprises a cleaning section having a water supply section for spraying cleaning solution onto the wound and a water intake section for aspirating waste liquid containing food residue removed by the spraying of the cleaning solution, The cleaning portion of the mouthpiece has a liquid reservoir that does not directly touch the wound and forms a space between the wound and the surrounding gum tissue in which the waste liquid can be stored. [Effects of the Invention]
[0009] According to the present invention, since a cleaning unit is provided for cleaning the wound, food debris and other materials remaining in the wound can be efficiently removed. Furthermore, according to the present invention, waste liquid can be temporarily stored in the space formed by the liquid reservoir, thus preventing the waste liquid from leaking into the oral cavity. This makes it possible to prevent aspiration of cleaning water or waste liquid even when elderly people or people with disabilities who have impaired swallowing function are cleaning wounds. [Brief explanation of the drawing]
[0010] [Figure 1] This figure shows an example of a schematic configuration of a wound cleaning device according to this embodiment. [Figure 2] This is a plan view showing an example of the configuration of the cleaning device body according to this embodiment. [Figure 3] This is a bottom view showing an example of the configuration of the cleaning device body according to this embodiment. [Figure 4] This is a perspective view showing an example of the configuration of the cleaning section when the mouthpiece according to this embodiment is viewed from the bottom side. [Figure 5] Figure 3 is a cross-sectional view of the cleaning section of the cleaning device body shown in Figure 3, along line AA. [Figure 6] Figure 3 is a cross-sectional view of the cleaning section of the cleaning device body, along line BB. [Figure 7] A perspective view showing the mouthpiece of the wound cleaning device according to this embodiment in a state where it is attached to the lower teeth. [Figure 8] This is a cross-sectional view of the gingival area including the cleaning area and the wound, when the mouthpiece of the wound cleaning device according to this embodiment is attached to the lower teeth, and the area is cut along line AA in Figure 3. [Figure 9] Figure 3 shows a cross-sectional view of the gingival area including the wound, with the mouthpiece of the wound cleaning device according to this embodiment attached to the mandibular teeth, when cut along the line BB. [Figure 10] This flowchart shows an example of a method for manufacturing a wound cleaning device according to this embodiment.
Best Mode for Carrying Out the Invention
[0011] With reference to the attached drawings below, the wound cleaning device according to a preferred embodiment of the present disclosure will be described in detail. Note that, in the drawings shown below, there may be cases where, for the sake of convenience, portions having different dimensional relationships and ratios with each other are included.
[0012] [Configuration Example of Wound Cleaning Device 1] FIG. 1 is a diagram showing an example of the schematic configuration of the wound cleaning device 1 according to the present embodiment. FIG. 2 is a plan view showing an example of the configuration of the cleaning device main body 10 according to the present embodiment. FIG. 3 is a bottom view showing an example of the configuration of the cleaning device main body 10 according to the present embodiment. Note that, in the present embodiment, a case where there is a wound in a part of the dental arch of the patient's lower jaw due to drug-related osteonecrosis of the jaw such as bisphosphonate, radiation-induced osteonecrosis of the jaw, tooth extraction, or oral surgery, etc., where the bone of the jaw has necrotized, etc., will be described. Further, in the wound cleaning device 1, when the cleaning device main body 10 is attached to the dental arch in the patient's oral cavity, the upper jaw direction of the patient is set as the upper side of the wound cleaning device 1, and the lower jaw direction of the patient is set as the lower side of the wound cleaning device 1.
[0013] The wound cleaning device 1 according to this embodiment is a device for removing food residues and the like remaining in the wound by injecting a cleaning liquid into the wound. As the cleaning liquid, for example, in addition to water, physiological saline, oxygenated water, high-concentration oxygenated water, chlorhexidine gluconate, benzalkonium chloride, benzethonium chloride, povidone iodine, azulene sulfonic acid, sodium fluoride, cetylpyridinium chloride, zinc chloride, methyl salicylate, thymol, L-menthol, 1,8-cineole, ethanol, sodium hypochlorite, amphoteric surfactant, peroxide, enzyme, antibacterial agent (β-lactam type, aminoglycoside type, quinolone type, fluoroquinolone type, fosfomycin, colistin, vicomycin, etc.), silver-based inorganic antibacterial agent, acid, glutaral, phthalal, peracetic acid, isopropanol, chlorhexidine gluconate, alkyldiaminoethyl glycine chloride, hydrogen peroxide water, etc., an aqueous solution or dispersion of a drug known to have a bactericidal effect is preferably used. In addition, it is also preferably considered to add cell pharmaceuticals and cell culture supernatants, etc., which are known to promote the healing of wounds, to the cleaning liquid.
[0014] As shown in FIGS. 1 to 3, the wound cleaning device 1 includes a cleaning device main body 10, a water supply device 20, and a water absorption device 30. The cleaning device main body 10 includes a mouthpiece 11, a liquid supply pipe 12, and a waste liquid pipe 13. In this embodiment, the mouthpiece 11, the liquid supply pipe 12, and the waste liquid pipe 13 are integrally formed of, for example, a resin material or the like.
[0015] As the resin material, any dental material generally used for mouthpieces, mouse guards, dental splints, etc. can be preferably used. For example, methyl methacrylate (heat-cured resin, room-temperature cured resin, photo-cured resin), polysulfone resin, polycarbonate resin, metal, acrylic, silicone rubber, fluorine rubber, polyolefin, polyethylene terephthalate, etc. can be mentioned, and these can be used alone or mixed as appropriate.
[0016] As shown in Figures 2 and 3, the mouthpiece 11 has a dental arch protection portion 100 and a cleaning portion 110. The dental arch protection portion 100 is individually molded for each patient to match the shape of the patient's teeth, jaw, etc., including the wound area. The dental arch protection portion 100 can be fitted onto the teeth including the wound area, and the cleaning portion 110 is fixed to the teeth so as not to shift position relative to the wound area.
[0017] The cleaning unit 110 is the part that sprays cleaning solution onto the wound. For example, if the wound is located on the first and second molars of the patient's dentition, the cleaning unit 110 is formed on one end of the dentition protection unit 100, which is U-shaped in plan view. As shown in Figures 1 to 3, the cleaning unit 110 has a water supply unit 111, a water intake unit 112, a liquid storage unit 113, and a contact unit 114. The water supply unit 111 sprays cleaning solution onto the wound. The water intake unit 112 sucks up the cleaning solution sprayed onto the wound and food debris removed from the wound. In this embodiment, the cleaning solution sprayed onto the wound and food debris removed from the wound by the cleaning solution may be collectively referred to as waste liquid. The liquid storage unit 113 forms a space between the wound and the surrounding gums to temporarily store the waste liquid. The contact portion 114 is in close contact with the gingiva surrounding the wound, sealing the space formed by the liquid reservoir portion 113. Details of the cleaning portion 110 will be described later.
[0018] As shown in Figures 1 and 2, the fluid supply piping 12 extends from the water supply section 111 of the cleaning section 110 along the upper surface of the dental arch protection section 100, and further extends from the labial side of the dental arch protection section 100 in the opposite direction from the cleaning section 110 (outside the oral cavity). One end of the fluid supply piping 12 branches before reaching the cleaning section 110, and each branched pipe is connected to the base end of each fluid supply channel wall 111a (see Figure 4) of the water supply section 111. The other end of the fluid supply piping 12 is configured to be connectable to one end of the fluid supply tube 280. The fluid supply piping 12 and the fluid supply tube 280 are examples of a fluid supply line.
[0019] As shown in Figures 1 and 2, the waste liquid piping 13 extends from the water intake section 112 of the cleaning section 110 along the upper surface of the dental arch protection section 100, and further extends from the labial side of the dental arch protection section 100 in the opposite direction from the cleaning section 110 (outside the oral cavity). One end of the waste liquid piping 13 is in communication with the outer peripheral wall 112c of the water intake section 112 (see Figure 5). The other end of the waste liquid piping 13 is connected to one end of the waste liquid tube 380. Note that the waste liquid piping 13 and the waste liquid tube 380 are examples of waste liquid lines.
[0020] In this embodiment, as shown in Figure 2 and other figures, the portions of the fluid supply pipe 12 and the waste fluid pipe 13 located outside the oral cavity are arranged side by side in the left-right direction, and these are the parts that the user grasps when cleaning the wound. The wound cleaning device 1 may also be equipped with a separate cylindrical handle for the user to grasp. In this case, the fluid supply pipe 12 and the waste fluid pipe 13 can be integrally constructed by inserting both the fluid supply pipe 12 and the waste fluid pipe 13 into the handle.
[0021] As shown in Figure 1, the water supply device 20 is a device for spraying cleaning solution onto the wound from the water supply unit 111 of the cleaning unit 110 at a predetermined water pressure. The water supply device 20 comprises a device body 200, a tank 210, a dial button 220, and a start / stop button 230. The tank 210 is detachably attached to the device body 200 and can store a predetermined amount of cleaning solution. The dial button 220 is attached to the front side of the device body 200 and is a dial that allows the user to arbitrarily adjust the water pressure of the cleaning solution. The start / stop button 230 is attached to the side side of the device body 200 and accepts the start and stop of the cleaning process by user operation.
[0022] The main body 200 of the device incorporates a pump 240, a drive unit 250, and a control unit 260. The other end of the liquid delivery tube 280 is connected to the pump 240. The pump 240 supplies the cleaning fluid stored in the tank 210 to the liquid delivery tube 280 at a predetermined water pressure. The drive unit 250 includes a motor and drives the pump 240. The control unit 260 has a microcontroller including a processor such as a CPU and memory, and controls various operations of the drive unit 250. The power source for the water delivery device 20 may be, for example, an AC power supply or a secondary battery such as a lithium-ion battery.
[0023] As shown in Figure 1, the water absorption device 30 is a device for aspirating waste liquid generated in a wound in the oral cavity using the water absorption section 112 of the cleaning section 110. The water absorption device 30 comprises a device body 300, a suction bottle 310, a dial button 320, and a start / stop button 330. The suction bottle 310 is detachably attached to the device body 300 and contains and collects the waste liquid aspirated from the liquid storage section 113. The dial button 320 is attached to the front of the device body 300 and allows the user to arbitrarily adjust the suction pressure of the waste liquid. The start / stop button 330 is attached to the front of the device body 300 and accepts the user's operation to start and stop the waste liquid suction process.
[0024] The main body of the device 300 houses a pump 340, a drive unit 350, and a control unit 360. The other end of the waste liquid tube 380 is connected to the pump 340. The pump 340 sucks the waste liquid accumulated in the liquid storage section 113 in the oral cavity into the suction bottle 310 via the waste liquid tube 380 at a predetermined suction pressure. The drive unit 350 includes a motor and drives the pump 340. The control unit 360 has a microcontroller including a processor such as a CPU and memory, and controls various operations of the drive unit 350. The power source for the water suction device 30 may be, for example, an AC power supply or a secondary battery such as a lithium-ion battery.
[0025] In this embodiment, an example in which the pump 240 is built into the water supply device 20 has been described, but the invention is not limited to this. For example, the pump 240 may be installed in the middle of the liquid supply tube 280. Also, in this embodiment, an example in which waste liquid aspirated from the oral cavity is collected in the suction bottle 310 of the water intake device 30 has been described, but the invention is not limited to this. For example, the waste liquid tube 380 may be routed to a drain in a sink, washbasin, bathroom unit, etc., and the waste liquid aspirated from the oral cavity may be drained into the drain of the sink, etc., via this waste liquid tube 380.
[0026] [Example of the configuration of the cleaning unit 110] Figure 4 is a perspective view showing an example of the configuration of the cleaning section 110 when the mouthpiece 11 according to this embodiment is viewed from the bottom side. Figure 5 is a cross-sectional view of the cleaning section 110 in the cleaning device body 10 shown in Figure 3 along line AA. Figure 6 is a cross-sectional view of the cleaning section 110 in the cleaning device body 10 shown in Figure 3 along line BB. Figure 7 is a perspective view showing the mouthpiece 11 of the wound cleaning device 1 according to this embodiment attached to the mandibular dentition. Figure 8 is a cross-sectional view of the gingival area including the cleaning section 110 and wound T when the mouthpiece 11 of the wound cleaning device 1 according to this embodiment is attached to the mandibular dentition, cut along line AA in Figure 3. Figure 9 is a cross-sectional view of the gingival area including the cleaning section 110 and wound T when the mouthpiece 11 of the wound cleaning device 1 according to this embodiment is attached to the mandibular dentition, cut along line BB in Figure 3.
[0027] As shown in Figures 4 to 6, the cleaning unit 110 includes a water supply unit 111, a water intake unit 112, a liquid storage unit 113, and a contact unit 114. For the sake of explanation, the water intake unit 112 will be described first. The water intake unit 112 sucks up the cleaning solution sprayed onto the wound from the water supply unit 111, and food debris and other materials removed from the wound T by the water pressure of the cleaning solution.
[0028] The water-absorbing section 112 is formed, for example, as an elliptical column having an internal space. Specifically, the water-absorbing section 112 has a first wall 112a and a second wall 112b that are elliptical in plan view and are arranged opposite each other with a predetermined distance between them, and an outer peripheral wall 112c that is erected to surround the outer peripheral edges of the first wall 112a and the second wall 112b. An elliptical columnar recess 112d is formed on the second wall 112b side of the water-absorbing section 112. The recess 112d functions as a space for circulating cleaning fluid and waste fluid, and as a space for temporarily accumulating food debris removed from the wound. The recess 112d has a bottom wall 112e and an inner peripheral wall 112f that is erected from the peripheral edge of the bottom wall 112e. The space enclosed by the first wall 112a, the second wall 112b, the outer peripheral wall 112c, the bottom wall 112e, and the inner peripheral wall 112f forms a wastewater channel through which wastewater sucked from the wound T flows.
[0029] The water absorption section 112 has a plurality of first suction holes 112g and a plurality of second suction holes 112h. The plurality of first suction holes 112g are drilled in the second wall 112b. Each first suction hole 112g penetrates the second wall 112b in the thickness direction and faces the wound T side so that waste fluid can be directly sucked from the wound T. The plurality of first suction holes 112g are drilled in the circumferential direction of the second wall 112b at predetermined intervals so as to surround the water supply section 111. In this embodiment, an example is shown in which five first suction holes 112g are drilled in the second wall 112b, but the number of first suction holes 112g is not limited.
[0030] Multiple second suction holes 112h are drilled in the inner circumferential wall 112f. Each second suction hole 112h penetrates the inner circumferential wall 112f in the thickness direction and faces toward the center of the recess 112d so that waste liquid flowing into the recess 112d can be sucked out. Multiple second suction holes 112h are drilled in the circumferential direction of the inner circumferential wall 112f at predetermined intervals. In this embodiment, an example is shown in which two second suction holes 112h are drilled in the vertical direction of the inner circumferential wall 112f and five rows of second suction holes 112h are drilled in the circumferential direction of the inner circumferential wall 112f, but the number of second suction holes 112h is not limited.
[0031] The water supply section 111 has a liquid supply channel wall 111a and a discharge hole 111b. The liquid supply channel wall 111a is substantially cylindrical and is erected on the bottom wall 112e of the recess 112d of the water intake section 112. A liquid supply channel through which the cleaning fluid flows is formed inside the liquid supply channel wall 111a. The base end of the liquid supply channel wall 111a penetrates the first wall 112a and the bottom wall 112e that constitute the water intake section 112 and communicates with one end of the liquid supply piping 12. The discharge hole 111b, which is drilled on the tip side of the liquid supply channel wall 111a, protrudes slightly toward the wound T side than the suction port 121b drilled in the second wall 112b so as not to be affected by suction by the water intake section 112.
[0032] The discharge hole 111b is drilled into the leading edge of the fluid delivery channel wall 111a. The discharge hole 111b penetrates the fluid delivery channel wall 111a in the thickness direction and is oriented toward the wound T so that the cleaning fluid can be directly applied to the wound T. The diameter and shape of the discharge hole 111b are set appropriately according to the water pressure of the cleaning fluid, the size of the wound, etc. In this embodiment, two water delivery units 111 are arranged at a predetermined distance apart, but the number of water delivery units 111 is not limited. The number of water delivery units 111 can be set appropriately, for example, according to the size of the wound.
[0033] As shown in Figures 5, 6, 8, and 9, the liquid storage section 113 has an outer wall 113a that extends for a predetermined length from the outer lower end of the outer peripheral wall 112c of the water absorption section 112 toward the wound T. The outer wall 122a is continuous with the outer peripheral wall 112c and is formed in an annular shape along the outer peripheral wall 112c of the water absorption section 112. In addition to the outer wall 113a, the liquid storage section 113 utilizes the second wall 112b, bottom wall 112e, inner peripheral wall 112f, and part of the contact portion 114 of the water absorption section 112 to form a space S in which waste liquid can be temporarily stored between the wound T and the surrounding gingiva G. The space S formed by the liquid storage section 113 is configured so that the water supply section 111 and water absorption section 112 of the cleaning section 110 do not directly come into contact with the wound T.
[0034] The contact portion 114 is formed continuously with the outer wall 113a of the liquid reservoir 113. Specifically, as shown in Figures 5, 6, 8, and 9, the contact portion 114 extends a predetermined length from the outer wall 113a of the liquid reservoir 113 along the buccal gingiva G and lingual gingiva G around the wound T, covering the gingiva G around the wound T from the outside. The inner circumferential surface of the contact portion 114 can make close contact with the buccal gingiva G and lingual gingiva G. Therefore, when the patient wears the mouthpiece 11 on their teeth, it is possible to prevent the formation of a gap between the contact portion 114 and the buccal gingiva G and lingual gingiva G around the wound T. As a result, the space S formed by the liquid reservoir 113, etc., becomes a space that is sealed to a certain extent.
[0035] [Example of use of wound cleaning device 1] As shown in Figure 7, the patient grasps the mouthpiece 11 at home or elsewhere and places it on the teeth including the wound T on the mandibular side of the oral cavity. This allows the cleaning unit 110 to be positioned opposite the wound T on the teeth. Next, the patient turns on the start / stop button 230 of the water supply device 20. This activates the pump 240 of the water supply device 20, and the cleaning fluid in the tank 210 is supplied to the water supply unit 111 of the cleaning unit 110 via the fluid supply tube 280 and fluid supply piping 12.
[0036] The cleaning fluid supplied to the water supply unit 111 of the cleaning unit 110 passes through the water supply channel within the water supply channel wall 111a and is sprayed from the discharge hole 111b toward the wound T. The cleaning fluid sprayed from the cleaning unit 110 removes food debris and other materials remaining in the wound T. At this time, as shown in Figures 8 and 9, the liquid storage unit 113 forms a sealed space S between the wound T and the surrounding gingiva G, so that a certain amount of cleaning fluid and waste fluid can be stored in this space S. The waste fluid temporarily stored in the liquid storage unit 113 is circulated within the liquid storage unit 113 by the water pressure of the cleaning fluid sprayed from the discharge hole 111b. This allows for more effective removal of food debris and other materials remaining in the wound T.
[0037] Furthermore, when the start / stop button 330 of the water suction device 30 is turned on at the same time as the start / stop button 230 of the water supply device 20 is turned on, the pump 340 of the water suction device 30 is activated. As a result, waste liquid accumulated in the liquid reservoir 113 etc. in the oral cavity is aspirated from the first suction port 112g and the second suction port 112h, respectively. The waste liquid aspirated from the first suction port 112g and the second suction port 112h is collected in the suction bottle 310 of the water suction device 30 via the waste liquid piping 13 and the waste liquid tube 380. When the cleaning of the wound T is completed, the start / stop button 230 of the water supply device 20 is turned off by the patient, and the start / stop button 330 of the water suction device 30 is turned off.
[0038] [Manufacturing method for wound cleaning device 1] Figure 10 is a flowchart showing an example of a method for manufacturing the wound cleaning device 1 according to this embodiment. First, in step S1, the patient's oral cavity is scanned using an intraoral scanner to acquire scan data of the oral cavity. For example, the scan acquires scan data of the maxillary dentition, the mandibular dentition, and the maxilla and mandible in a state where the upper and lower teeth are occluded. A CT scanner may also be used for scanning the oral cavity.
[0039] Next, in step S2, a splint is created for the dental arch including the wound area using the acquired scan data. The splint includes a dental arch protection section 100, a liquid reservoir section 113 in the cleaning section 110, and a contact section 114. A known splint creation application can be used to create the splint. For example, if there is a wound area T on the first and second molars of the mandibular dental arch, a splint is created individually for each patient to match the mandibular dental arch. Splint creation in the application may be automated using AI, etc., or it may be manually created by the user. Once the creation of the patient's splint is complete in the application, STL data of the created splint is generated.
[0040] Next, in step S3, the wound cleaning device 1 is designed using the generated sprint stl data. A known 3D CAD application can be used to design the wound cleaning device 1. For example, in a 3D CAD application, each component such as the cleaning unit 110 including the water supply unit 111 and water intake unit 112, the fluid supply piping 12, and the waste fluid piping 13 is prepared in advance, and the cleaning device body 10 is designed by mounting the cleaning unit 110 etc. on the created sprint. The 3D CAD application generates stl data for the designed cleaning device body 10.
[0041] Next, in step S4, the cleaning device body 10 is created using a 3D CAD printer with the generated STL data. For example, plastic resin is used as the material for the cleaning device body 10. In this way, a cleaning device body 10 customized for each patient can be created. Next, one end of the fluid supply tube 280 is connected to the fluid supply pipe 12 of the created cleaning device body 10, and one end of the waste fluid tube 380 is connected to the waste fluid pipe 13, thereby completing the wound cleaning device 1. Note that the method described in this embodiment is just one example, and the wound cleaning device 1 may be manufactured by employing other known methods.
[0042] According to this embodiment, waste liquid can be temporarily stored in the space S formed by the liquid reservoir 113 of the cleaning unit 110, the wound T, and the surrounding gingiva G. Furthermore, since the contact portion 114 of the cleaning unit 110 is in close contact with the gingiva G without any gaps, the space S formed by the liquid reservoir 113, etc., can be sealed. This prevents cleaning solution and waste liquid from leaking from the wound T into the oral cavity, and prevents aspiration of cleaning solution and waste liquid even when elderly people or people with disabilities who have impaired swallowing function are cleaning the wound T.
[0043] Furthermore, according to this embodiment, by forming a recess 112d in the water absorption section 112, a space for accumulating waste liquid can be secured. This prevents waste liquid from leaking from the liquid storage section 113 into the oral cavity. In addition, according to this embodiment, since a second suction hole 112h is drilled in the inner circumferential wall 112f of the recess 112d, negative pressure can be secured in addition to the first suction hole 112g. This allows waste liquid temporarily accumulated in the liquid storage section 113 to be smoothly suctioned and discharged into the suction bottle 310 of the water absorption device 30.
[0044] Furthermore, according to this embodiment, the wound cleaning device 1 is constructed in the shape of a mouthpiece, and the position of the cleaning part 110 is pre-formed to match the position of the wound T. Therefore, by fitting the mouthpiece 11 to the teeth, the cleaning part 110 can be positioned without misalignment relative to the wound T. As a result, the patient can reliably remove food debris and other contaminants remaining in the wound T without having to perform complicated operations.
[0045] Furthermore, as one of the official embodiments of this disclosure, we will describe a case in which a portion of the maxillary dentition of a patient has a wound where the jawbone has necrotized due to drug-related osteonecrosis of the jaw, such as bisphosphonate-induced osteonecrosis of the jaw, radiation-induced osteonecrosis of the jaw, tooth extraction, or oral surgery. Note that the description of the components of the wound cleaning device 1 according to this embodiment will be omitted if it is the same as the embodiment in which the mouthpiece 11 is attached to the mandibular dentition. In addition, in this embodiment, when the cleaning device body 10 is attached to the dentition in the patient's mouth, the direction of the patient's mandible is above the wound cleaning device 1, and the direction of the patient's maxilla is below the wound cleaning device 1.
[0046] In this embodiment, the wound cleaning device 1 for the upper jaw, as shown in Figures 2 and 3, has a tooth arch protection section 100 and a cleaning section 110, similar to the embodiment for the lower jaw, which can prevent the inflow of medicinal solution and cleaning wastewater from the oral cavity into the pharynx.
[0047] Furthermore, in this embodiment, in addition to the dental arch protection portion 100, a palatal covering portion (not shown) that covers the hard palate and / or soft palate may be provided. The palatal covering portion may be molded integrally with the lingual side of the mouthpiece 11, for example. The palatal covering portion may be molded to be in close contact with the hard palate and soft palate, or it may be molded to create a gap between the palatal covering portion and the hard palate and soft palate. The provision of the gap prevents the inflow of medicinal solution and washing wastewater from the oral cavity to the pharynx, and in patients with dried sputum adhering to the palate, it can be used for sputum removal and can also be used for oral care.
[0048] Depending on the depth of the wound, the wound on the maxillary side may reach the paranasal sinuses, particularly the maxillary sinus, creating a connection between the oral cavity and the maxillary sinus. Alternatively, a bone defect may also create this connection. In this case, the cleaning section 110 and the suction section 112 of the maxillary wound cleaning instrument 1 are shaped to reach the maxillary sinus. When the cleaning section 110 and suction section 112 reach the maxillary sinus, cleaning can be performed while standing, eliminating the need for a seated position as in dental treatment. Furthermore, the presence of a suction device prevents the cleaning solution from entering the nasal cavity, thus preventing aspiration and aspiration pneumonia. Additionally, it prevents the instrument from coming into contact with the nasal mucosa.
[0049] Furthermore, in this embodiment, various conventionally known mechanisms effective for sterilizing the wound T and removing food debris may be provided near the cleaning section 110 of the wound cleaning device 1. For example, various light sources may be attached near the cleaning section 110 to enable photosterilization simultaneously with wound cleaning, or an ultrasonic transducer may be attached near the cleaning section 110 to efficiently remove food debris near the wound T. Alternatively, a venturi structure may be provided in the middle of the lumen of the fluid delivery piping (fluid delivery line) 12 of the wound cleaning device 1, or a microbubble generator may be attached to the water delivery device to deliver microbubble water to the wound as cleaning water, thereby efficiently removing food debris near the wound T. In these embodiments, the various cleaning solutions and the various mechanisms described above may be used in combination.
[0050] Although preferred embodiments of this disclosure have been described in detail above with reference to the attached drawings, the technical scope of this disclosure is not limited to these examples. Furthermore, various modifications and improvements naturally fall within the technical scope of this disclosure, within the scope of the technical ideas described in the claims for those skilled in the art. [Explanation of symbols]
[0051] 1. Wound cleaning device 10 Cleaning device body 11 Mouthpiece 12. Liquid transfer piping (liquid transfer line) 13. Waste liquid piping (waste liquid line) 20 Water supply equipment (supply source) 30. Water absorption device (recovery unit) 100 Dental arch protection area 110 Cleaning section 111 Water supply section 111b Discharge hole 112 Water absorption part 112b 2nd wall (opposite wall) 112d recess 112f Inner peripheral wall (peripheral wall) 112g 1st suction hole 112h 2nd suction hole 113 Liquid storage section 114 Contact part Gingiva T wound area
Claims
1. An instrument for cleaning wounds in the oral cavity, A mouthpiece comprising a tooth protection portion that can be fitted and fixed to the teeth, and a cleaning portion having a water supply portion that sprays cleaning solution onto the wound and a water intake portion that sucks up waste liquid containing food debris removed by the spraying of the cleaning solution, A supply source that supplies the cleaning liquid to the water supply unit, A recovery unit capable of storing or discharging the waste liquid after washing, A liquid supply line having one end connected to the water supply unit and the other end connected to the supply source, A waste liquid line having one end connected to the water absorption section and the other end connected to the recovery section, Equipped with, A wound cleaning device wherein the cleaning portion of the mouthpiece does not directly touch the wound and has a liquid reservoir that forms a space between the wound and the surrounding gums in which the waste liquid can be stored.
2. The water-absorbing portion is drilled into the opposing wall facing the wound and has a suction hole for sucking up the waste liquid. The opposing wall has a recess formed at a position different from the suction hole, which constitutes part of the liquid reservoir. The wound cleaning device according to claim 1.
3. A second suction hole, different from the first suction hole, is drilled in the peripheral wall within the recess. The wound cleaning device according to claim 2.
4. The cleaning unit has a contact portion that can come into close contact with the gum tissue surrounding the wound. The wound cleaning device according to claim 1.
5. The tooth protection portion and the cleaning portion are molded together as a single unit. The wound cleaning device according to claim 1.
6. The water supply unit has a discharge port for spraying the cleaning solution onto the wound. The discharge hole is formed in a position that protrudes toward the wound side more than the suction hole drilled in the opposing wall. The wound cleaning device according to claim 2.
7. A cleaning device body for cleaning wounds in the oral cavity, A dental arch protection part that can be fitted and fixed to the dental arch, The mouthpiece comprises a cleaning section having a water supply section for spraying cleaning solution onto the wound and a water intake section for aspirating waste liquid containing food residue removed by the spraying of the cleaning solution, The cleaning portion of the mouthpiece does not directly touch the wound and has a liquid reservoir that forms a space between the wound and the surrounding gum tissue where the waste liquid can be stored. Cleaning device body.