Maxillary obturator made of novel material

Abstract

The invention discloses a maxillary obturator made of a novel material, and relates to the technical field of oral treatment maxillary obturations.The maxillary obturator comprises an obturator base body, the upper surface of the obturator base body is fixedly connected with a reinforcing layer for conducting auxiliary reinforcing on the obturator base body, and the upper surface of the reinforcing layer is fixedly connected with a medical soft silica gel layer; the auxiliary deformation structure abuts against the medical soft silica gel layer through an electroactive polymer arranged in the reinforcing layer. According to the maxillary obturator made of the novel material, the interior of the mouth is scanned through the digital repairing technology, scanned data are collected, a prosthesis can be accurately and rapidly designed, the prosthesis can be accurately and rapidly manufactured through the digital machining and manufacturing technology, and the practicability is high. The medical soft silica gel layer correspondingly deforms and is tightly attached to the upper jaw through the migration volume change of ions in the polymer, so that the change of the internal pressure of the oral cavity is further reduced when the patient swallows and speaks, and the phenomenon of unstable attachment of the plate body is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of maxillary obstructers for oral treatment, in particular to a maxillary obstructer made of a new material. Background Art

[0002] Maxillary defect refers to the destruction of the anatomical structure of the maxillary bone and its incompleteness due to various reasons, such as inflammation, trauma, tumor resection or congenital factors. Maxillary defect can lead to velopharyngeal insufficiency, resulting in slurred speech and swallowing difficulties, which will cause physiological dysfunction and psychological impact on patients, reduce the quality of life of patients, and thus bring about a series of serious social problems. Due to the condition of the maxillary defect and the different health conditions of the patients, surgical repair is not always suitable. For patients who cannot undergo surgical repair, we need to make an obstructor to restore their various functions. The obstructor can close the maxillary defect, maintain the integrity of the oral and nasal cavities, block the connection between the mouth and nose, prevent nasal reflux, and thus help patients restore normal speech and swallowing functions.

[0003] Prior art (Announcement No.: CN210130957U, Chinese patent with announcement date of 2020-03-10) A maxillary obstructer for oral treatment of patients with maxillary defects, comprising a maxillary obstructer body and a silicone rubber layer; the maxillary obstructer body is a plate-like structure, comprising a tissue surface and a polished surface; the tissue surface comprises a plurality of grooves and / or through holes for embedding the silicone rubber layer, and is connected to the silicone rubber layer; the polished surface is provided with a gripping portion; the shape of the maxillary obstructer body matches the anatomical shape of the maxilla, and the maxillary obstructer body can play a good supporting and stabilizing role; utilizing the plasticity of the silicone rubber layer, it can be completely matched with the shape of the patient's maxilla, and the silicone rubber layer has a certain fluidity, and part of it can be placed in the patient's maxillary defect to achieve a good sealing effect on the defect.

[0004] After the maxillary obstructer for oral treatment is inserted, although it can effectively prevent water and debris from flowing into the patient's nasal cavity from the defect area during treatment, causing choking or foreign objects falling into the nasal cavity and the risk of suffocation, the patient's maxillary state will undergo a certain deformation when opening the mouth and swallowing. At this time, the maxillary obstructer cannot adaptively deform synchronously with the deformation of the maxillary state, thereby reducing the sealing effect of the maxillary obstructer on the patient's defect area, and has certain limitations.

[0005] Therefore, we proposed a maxillary obstructer made of a new material to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a maxillary obstructer made of a new material to solve the problem raised in the above background technology that when the maxillary obstructer currently on the market is used, the patient's maxillary state will undergo a certain deformation when opening his mouth and swallowing, and at this time the maxillary obstructer cannot adaptively deform synchronously with the deformation of the maxillary state, thereby reducing the sealing effect of the maxillary obstructer on the patient's defect area, and there are certain limitations.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a maxillary obstructer made of a new material, comprising an obstructer base, the upper surface of the obstructer base being fixedly connected to a reinforcement layer for auxiliary reinforcement thereof, and the upper surface of the reinforcement layer being fixedly connected to a medical soft silicone layer, the interior of the reinforcement layer and the outer surface of the medical soft silicone layer being provided with an auxiliary deformation structure, the auxiliary deformation structure realizing top contact with the medical soft silicone layer through an electroactive polymer arranged inside the reinforcement layer.

[0008] Preferably, the obstructer base and the reinforcement layer are both structurally arranged to match the morphology of the patient's soft palate defect, and when the obstructer base is inserted, abutment teeth are first selected on the posterior teeth on both sides of the maxillary jaw, a gap groove is prepared, and a clasp is set on the side of the obstructer base so that the obstructer base clasp can be firmly fixed on the tooth, and the obstructer base and the reinforcement layer are both printed with shape memory polymer, and the outer surface side of the medical soft silicone layer is coated with a composite gel body that can prevent the displacement of the maxillary obstructer.

[0009] Preferably, the composite gel body is a chitosan-hyaluronic acid composite gel, and the composite gel body is bonded to the oral mucosa through electrostatic interaction.

[0010] Preferably, a transverse guide groove extending outward is provided on the side of the upper surface of the medical soft silicone layer, and vertical guide grooves are provided on the sides of the medical soft silicone layer, the blocker base and the reinforcement layer, and the vertical guide grooves are connected to the transverse guide grooves, and the transverse guide grooves are arranged in an inclined structure, and the inclination direction of the transverse guide grooves is arranged from the center of the medical soft silicone layer to the outside and downward.

[0011] Preferably, a silicone film valve for preventing food reflux is embedded on the outside of the medical soft silicone layer, and the opening pressure of the silicone film valve is greater than the pressure during normal swallowing of the patient, and the medical soft silicone layer is made of antibacterial nano-coated silicone material.

[0012] Preferably, the auxiliary deformation structure includes a graphene strain gauge, and the graphene strain gauge is fixedly connected to the center of the outer surface of the medical soft silicone layer, and multiple groups of graphene strain gauges are arranged in a honeycomb structure. At the same time, multiple groups of graphene strain gauges are fused through AI algorithms to transmit pressure data in real time to related software.

[0013] Preferably, an adjustment groove is opened inside the reinforcement layer, a power supply sheet is fixedly connected inside the adjustment groove, the electroactive polymer is fixedly connected at the center position of the upper surface of the power supply sheet, and the electroactive polymer is an ionic EAP, and the power supply sheet realizes remote power supply to the electroactive polymer through magnetic resonance coupling technology.

[0014] Preferably, the power supply sheet is arranged in a regular hexagonal structure when viewed from above, and is located directly below the graphene strain gauge. The number of power supply sheets and graphene strain gauges is the same and their positions correspond one to one.

[0015] Preferably, the upper surface of the electroactive polymer and the lower surface of the medical soft silicone layer are arranged to fit each other, and the volume of the electroactive polymer can be adaptively changed by the action of the power supply sheet, and the medical soft silicone layer is deformed between the electroactive polymer and the reinforcement layer.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the strength of the obturator base is improved by the reinforcement layer; the insertion of the obturator base helps patients recover normal speech and swallowing functions; the obturator base made of shape memory polymer cooperates with the medical soft silicone layer to improve the sealing of the plate insertion; the composite gel body prevents the plate from shifting; the horizontal guide groove and the vertical guide groove cooperate with each other to avoid the phenomenon of saliva accumulation and bacterial growth; the plate fits more stably with the upper jaw through the volume change of ions in the polymer: A reinforcement layer is provided on the upper surface of the obstructer base, through which the obstructer base can be further processed to improve the strength of the obstructer base when installed inside the oral cavity. When the obstructer base is inserted, abutment teeth are first selected on the posterior teeth on both sides of the maxillary jaw, and a slot groove is prepared. A clasp is provided on the side of the obstructer base so that the clasp of the obstructer base can be firmly fixed on the teeth, thereby completing the insertion of the plate and helping the patient to restore normal speech and swallowing functions. At the same time, through the mutual cooperation of the clasp and the slot groove, the obstructer base can be conveniently installed and disassembled, so that the obstructer base can be disassembled every day for cleaning and to reduce bacterial growth.

[0017] The obstructer base and reinforcement layer are both printed with shape memory polymer. The memory property of the shape memory polymer allows the plate to better fit the maxillary defect, thereby cooperating with the medical soft silicone layer set on the outer surface of the reinforcement layer to further improve the sealing of the plate, maintain the integrity of the oral and nasal cavities, block the communication between the mouth and nose, and prevent nasal reflux.

[0018] (1) The upper surface of the medical soft silicone layer is provided with a composite gel body, which is a chitosan-hyaluronic acid composite gel. The chitosan-hyaluronic acid composite gel can be combined with the mucosa by electrostatic action. The composite gel body can further increase the adhesion between the plate and the inside of the oral cavity, thereby avoiding the occurrence of displacement of the plate.

[0019] (2) The upper surface of the medical soft silicone layer is provided with a transverse guide groove inclined outward, through which the saliva generated when the medical soft silicone layer contacts the inside of the oral cavity can be drained. At the same time, the transverse guide groove cooperates with the vertical guide groove to further increase the drainage effect of saliva, avoiding the phenomenon of saliva accumulation and bacterial growth. At the same time, a silicone film valve with an opening pressure value greater than the normal swallowing pressure is provided on the side of the medical soft silicone layer. The silicone film valve can further prevent nasal reflux.

[0020] (3) When the patient swallows or speaks, the upper jaw will be slightly deformed, so that the pressure between the upper jaw and the medical soft silicone layer will also change synchronously. The graphene strain gauge set on the upper surface of the medical soft silicone layer senses the change in pressure at the corresponding position of the upper jaw and transmits the real-time data detected to the internal system of the external docking setting. At this time, the power supply plate at the corresponding position of the graphene strain gauge can wirelessly power the electroactive polymer through magnetic resonance coupling technology. The ionic electroactive polymer is affected by electricity, and its electric field drives the ions to migrate in the polymer, causing the volume to expand / contract, thereby resisting the medical soft silicone layer, causing the medical soft silicone layer to deform accordingly and fit tightly with the upper jaw, further reducing the changes in the pressure inside the mouth when the patient swallows and speaks, and avoiding the phenomenon of unstable plate fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional unfolded structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the medical soft silicone layer of the present invention; Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention; Figure 5 Schematic diagram of the three-dimensional structure of the reinforcement layer of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the electroactive polymer of the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the composite gel of the present invention; Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of the adjustment groove of the present invention; Figure 9For the present invention Figure 8 Enlarged structural diagram at point A in the middle.

[0022] In the figure: 1. Blocker base; 2. Medical soft silicone layer; 3. Reinforcement layer; 4. Adjustment groove; 5. Graphene strain gauge; 6. Electroactive polymer; 7. Composite gel body; 8. Silicone membrane valve; 9. Power supply sheet; 10. Horizontal guide groove; 11. Vertical guide groove. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Figure 1 and Figure 2 The technical solution shown in the figure, the present invention provides the following technical solution: a maxillary obstructer of a new material, disclosing a obstructer base 1, which can maintain the integrity of the oral cavity and nasal cavity, block the communication between the mouth and nose, and prevent nasal reflux: the obstructer base 1, the upper surface of the obstructer base 1 is fixedly connected with a reinforcement layer 3 for auxiliary reinforcement thereof, and the upper surface of the reinforcement layer 3 is fixedly connected with a medical soft silicone layer 2, the obstructer base 1 and the reinforcement layer 3 are both structurally arranged to match the morphology of the patient's soft palate defect, and the obstructer base 1 is adhered and fixed to the gums by medical acrylic resin, and the obstructer base 1 and the reinforcement layer 3 are both printed with shape memory polymer, and the outer surface side of the medical soft silicone layer 2 is coated with a composite gel body 7 that can prevent the displacement of the maxillary obstructer for treatment, the composite gel body 7 is a chitosan-hyaluronic acid composite gel, and the composite gel body 7 is bonded to the oral mucosa by electrostatic action.

[0025] The upper surface of the obstructer base 1 is provided with a reinforcement layer 3, and the obstructer base 1 can be further processed by the reinforcement layer 3 to improve the strength of the obstructer base 1 installed inside the oral cavity. When the obstructer base 1 is placed, the abutment teeth are first selected on the posterior teeth on both sides of the maxillary jaw, and the gap groove is prepared, and a clasp is provided on the side of the obstructer base 1 so that the clasp of the obstructer base 1 can be firmly fixed on the teeth, thereby completing the placement of the plate and helping the patient to restore normal speech and swallowing functions. The mutual cooperation between the clasp and the gap groove allows the obstructer base 1 to be conveniently installed and disassembled, so that the obstructer base 1 can be disassembled every day for cleaning, reducing bacterial growth, and preventing obstruction. The device base 1 and the reinforcement layer 3 are both printed with shape memory polymers. Through the memory of the shape memory polymer, the plate can be better fitted to the maxillary defect, thereby cooperating with the medical soft silicone layer 2 set on the outer surface of the reinforcement layer 3 to further improve the sealing of the plate insertion, maintain the integrity of the oral and nasal cavities, block the communication between the mouth and nose, and prevent nasal reflux. The upper surface of the medical soft silicone layer 2 is provided with a composite gel body 7, which is a chitosan-hyaluronic acid composite gel. The chitosan-hyaluronic acid composite gel can be combined with the mucosa by electrostatic action. The composite gel body 7 can further increase the adhesion between the plate and the inside of the oral cavity to avoid the occurrence of plate displacement.

[0026] Example 2: Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6The technical solution shown in the figure, the present invention provides the following technical solutions: a maxillary obstructer of a new material, disclosing an auxiliary deformation structure, which reduces the changes in the internal pressure of the patient's mouth when swallowing and speaking, and avoids the occurrence of unstable plate fitting: the interior of the reinforcement layer 3 and the outer surface of the medical soft silicone layer 2 are provided with an auxiliary deformation structure, and the auxiliary deformation structure realizes the top contact of the medical soft silicone layer 2 through the electroactive polymer 6 provided in the reinforcement layer 3, and the auxiliary deformation structure includes a graphene strain gauge 5, and the graphene strain gauge 5 is fixedly connected to the center of the outer surface of the medical soft silicone layer 2, and a plurality of groups of graphene strain gauges 5 are arranged in a honeycomb structure, and at the same time, the plurality of groups of graphene strain gauges 5 are fused by an AI algorithm to transmit the pressure data to the relevant software in real time, An adjustment groove 4 is opened inside the reinforcement layer 3, and a power supply sheet 9 is fixedly connected inside the adjustment groove 4. The electroactive polymer 6 is fixedly connected to the center position of the upper surface of the power supply sheet 9, and the electroactive polymer 6 is an ionic EAP, and the power supply sheet 9 realizes remote power supply to the electroactive polymer 6 through magnetic resonance coupling technology. The power supply sheet 9 is arranged in a regular hexagonal structure when viewed from above, and the power supply sheet 9 is arranged directly below the graphene strain gauge 5, and the number of power supply sheets 9 and the graphene strain gauge 5 are the same and the positions correspond one to one. The upper surface of the electroactive polymer 6 and the lower surface of the medical soft silicone layer 2 are arranged to fit each other, and the volume of the electroactive polymer 6 can be adaptively changed through the action of the power supply sheet 9, and the medical soft silicone layer 2 is deformed between the electroactive polymer 6 and the reinforcement layer 3.

[0027] When the patient swallows or speaks, the upper jaw will deform slightly accordingly, so that the pressure between the upper jaw and the medical soft silicone layer 2 will also change synchronously. The graphene strain gauge 5 set on the upper surface of the medical soft silicone layer 2 senses the change in pressure at the corresponding position of the upper jaw, and will synchronously transmit the real-time data detected to the internal system of the external docking setting. At this time, the power supply sheet 9 at the corresponding position of the graphene strain gauge 5 can wirelessly power the electroactive polymer 6 through magnetic resonance coupling technology. The ionic electroactive polymer 6 is affected by electricity, and its electric field drives the ions to migrate in the polymer, causing volume expansion / contraction, thereby resisting the medical soft silicone layer 2, causing the medical soft silicone layer 2 to deform accordingly and fit tightly with the upper jaw, further reducing the changes in internal oral pressure when the patient swallows and speaks, and avoiding the occurrence of unstable plate fitting.

[0028] Example 3: Figure 3 、 Figure 7 、 Figure 8 and Figure 9The technical solution shown in the present invention provides the following technical solution: a maxillary obturator of a new material, disclosing a vertical guide groove 11 and a horizontal guide groove 10, which increase the drainage effect of saliva and avoid the phenomenon of saliva accumulation and bacterial growth: the upper surface side of the medical soft silicone layer 2 is provided with a horizontal guide groove 10 extending outward, and the sides of the medical soft silicone layer 2, the obturator base 1 and the reinforcement layer 3 are all provided with vertical guide grooves 11, and the vertical guide grooves 11 are connected with the horizontal guide grooves 10, and the horizontal guide grooves 10 are arranged in an inclined structure, and the inclination direction of the horizontal guide grooves 10 is inclined from the center of the medical soft silicone layer 2 to the outside and downward, and the outside of the medical soft silicone layer 2 is embedded with a silicone film valve 8 to prevent food reflux, and the opening pressure of the silicone film valve 8 is greater than the pressure when the patient swallows normally, and the medical soft silicone layer 2 is made of antibacterial nano-coated silicone material.

[0029] The upper surface of the medical soft silicone layer 2 is provided with a horizontal guide groove 10 inclined outward. The horizontal guide groove 10 can drain the saliva generated when the medical soft silicone layer 2 contacts the inside of the oral cavity. At the same time, the horizontal guide groove 10 cooperates with the vertical guide groove 11 to further increase the drainage effect of saliva, avoiding the phenomenon of saliva accumulation and bacterial growth. At the same time, the side of the medical soft silicone layer 2 is provided with a silicone film valve 8 with an opening pressure value greater than the normal swallowing pressure. The silicone film valve 8 can further prevent nasal reflux.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A maxillary obturator made of a novel material, comprising an obturator base (1), wherein the upper surface of the obturator base (1) is fixedly connected to a reinforcement layer (3) for auxiliary reinforcement thereof, and the upper surface of the reinforcement layer (3) is fixedly connected to a medical soft silicone layer (2), characterized in that: An auxiliary deformation structure is provided inside the reinforcement layer (3) and on the outer surface of the medical soft silicone layer (2), and the auxiliary deformation structure achieves top contact with the medical soft silicone layer (2) through an electroactive polymer (6) provided inside the reinforcement layer (3).

2. The maxillary obstructer made of a novel material according to claim 1, characterized in that: The obstructer base (1) and the reinforcement layer (3) are both arranged in a structure that matches the shape of the patient's soft palate defect, and when the obstructer base (1) is placed, abutment teeth (usually 3-4) are first selected on both sides of the maxillary jaw, a slot is prepared, and a clasp is set on the side of the obstructer base (1) so that the clasp of the obstructer base (1) can be firmly fixed on the teeth, and the obstructer base (1) and the reinforcement layer (3) are both printed with shape memory polymer, and the outer surface side of the medical soft silicone layer (2) is coated with a composite gel body (7) that can prevent the displacement of the maxillary obstructer.

3. The maxillary obstructer made of a novel material according to claim 2, characterized in that: The composite gel body (7) is a chitosan-hyaluronic acid composite gel, and the composite gel body (7) is bonded to the oral mucosa through electrostatic action.

4. The maxillary obstructer made of a novel material according to claim 2, characterized in that: The upper surface side of the medical soft silicone layer (2) is provided with a transverse guide groove (10) extending outward, and the sides of the medical soft silicone layer (2), the obturator base (1) and the reinforcement layer (3) are all provided with vertical guide grooves (11), and the vertical guide grooves (11) are connected to the transverse guide grooves (10), and the transverse guide grooves (10) are arranged in an inclined structure, and the inclination direction of the transverse guide grooves (10) is inclined from the center of the medical soft silicone layer (2) to the outside and downward.

5. The maxillary obstructer made of a novel material according to claim 4, characterized in that: A silicone film valve (8) for preventing food reflux is embedded on the outside of the medical soft silicone layer (2), and the opening pressure of the silicone film valve (8) is greater than the pressure of a patient's normal swallowing, and the medical soft silicone layer (2) is made of antibacterial nano-coated silicone material.

6. The maxillary obstructer made of a novel material according to claim 1, characterized in that: The auxiliary deformation structure includes a graphene strain gauge (5), and the graphene strain gauge (5) is fixedly connected to the center of the outer surface of the medical soft silicone layer (2), and multiple groups of graphene strain gauges (5) are arranged in a honeycomb structure. At the same time, the multiple groups of graphene strain gauges (5) are fused through an AI algorithm to transmit pressure data in real time to relevant software.

7. The maxillary obstructer made of a novel material according to claim 6, characterized in that: An adjustment groove (4) is provided inside the reinforcement layer (3), a power supply sheet (9) is fixedly connected inside the adjustment groove (4), the electroactive polymer (6) is fixedly connected to the center position of the upper surface of the power supply sheet (9), the electroactive polymer (6) is an ionic EAP, and the power supply sheet (9) realizes remote power supply to the electroactive polymer (6) through magnetic resonance coupling technology.

8. The maxillary obstructer made of a novel material according to claim 7, characterized in that: The power supply sheet (9) is arranged in a regular hexagonal structure when viewed from above, and the power supply sheet (9) is arranged directly below the graphene strain sheet (5), and the number of the power supply sheets (9) and the graphene strain sheet (5) are the same and the positions correspond one to one.

9. The maxillary obstructer made of a novel material according to claim 7, characterized in that: The upper surface of the electroactive polymer (6) and the lower surface of the medical soft silicone layer (2) are arranged to fit each other, and the volume of the electroactive polymer (6) can be adaptively changed by the action of the power supply sheet (9), and the medical soft silicone layer (2) is deformed through the electroactive polymer (6) and the reinforcement layer (3).

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