Adjustable diagnosis and treatment bite block and airway and digestive tract combined application system with adjustable diagnosis and treatment bite block

Abstract

The invention relates to the field of medical instruments, in particular to an adjustable diagnosis and treatment bite block and an airway and alimentary canal combined application system with the adjustable diagnosis and treatment bite block. The device comprises a supporting shell, a flow guide part, a supporting pipe and a panel, the inner side of the supporting shell is through, and the supporting shell is provided with an extension section at the front section, an occlusion section at the rear section and an oxygen conveying connector located at the extension section; the supporting pipe is communicated with one end of the supporting shell, and the supporting pipe comprises a silica gel layer and a metal wire embedded in the silica gel layer; the flow guide part is arranged in the supporting shell, and an oxygen conveying channel for communicating the oxygen conveying connector with the supporting pipe is formed between the flow guide part and the inner wall of the supporting shell; the panel is arranged on the periphery of the supporting shell and located on the front side of the meshing section of the supporting shell. The device is provided with the oxygen conveying channel, is suitable for airway-digestive tract joint intervention and diagnosis and treatment, improves the oxygen conveying efficiency, can be bent and deformed, and is high in adaptability.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, in particular to an adjustable diagnosis and treatment tooth pad and an airway and digestive tract combined application system having the same. Background Art

[0002] In the field of combined airway-digestive tract diagnosis and treatment, traditional open-mouthed mouthguards lack built-in oxygen supply channels. Conventional, non-intubated, pure intravenous anesthesia procedures require nasal cannula oxygenation (FiO2 ≤ 40%). When anesthesia leads to respiratory depression, existing emergency plans have significant drawbacks: 1. Jaw thrust: The structure of traditional open-mouthed mouthguards limits their integration into an effective oxygen supply system. Even with supplemental oxygenation via a nasal cannula, the baseline inspired oxygen concentration (FiO2) remains below the 40% threshold. 2. Mask pressurization: Treatment must be suspended, and oxygen administration increases the incidence of gastric bloating. 3. Emergency endotracheal intubation: The average duration is 4.5 minutes, during which SpO2 remains below 90% for extended periods. More critically, the current combined procedure requires alternating between independent airway management devices and airway-digestive endoscopic access. This creates competition between emergency interventions and the primary procedure, necessitating the suspension of treatment. This not only delays the procedure beyond the golden window for treatment (>60 seconds), but also leads to a surge in gastric bloating, creating a vicious cycle of "treatment-interference."

[0003] The existing technologies are mainly divided into the following two types:

[0004] (1) Traditional open-mouthed mouthguards: Their single-channel design completely lacks a built-in oxygen supply module, forcing clinicians to rely on nasal cannulae for supplemental oxygen inhalation. Even under optimal working conditions, the inspired oxygen concentration (FiO2) is difficult to exceed the 40% threshold.

[0005] (2) Rigid tongue support structure: This represents the first generation of tongue prolapse prevention solutions. This structure has no oxygen supply design, has adaptation defects, and cannot adapt to the physiological variation of tongue thickness of ±4.7mm. It has a higher failure rate in patients with obesity or edema. Summary of the Invention

[0006] The purpose of the present invention is to address the problems existing in the background technology and propose an adjustable diagnostic and treatment tooth pad and an airway and digestive tract combined application system having the same. The tooth pad has an oxygen supply channel, is suitable for airway-digestive tract combined intervention and treatment, and improves oxygen supply efficiency. The tooth pad is bendable and deformable and has strong adaptability.

[0007] On the one hand, the present invention proposes an adjustable diagnostic and therapeutic tooth pad, comprising a support shell, a flow guide, a support tube and a panel; the inner side of the support shell is through-through, and the support shell has a front extension section and a rear occlusal section, as well as an oxygen supply interface located in the extension section; the support tube is connected to one end of the support shell, and the support tube includes a silicone layer and a metal wire embedded in the silicone layer; the flow guide is arranged in the support shell, and an oxygen supply channel is formed between the flow guide and the inner wall of the support shell to connect the oxygen supply interface with the support tube; the panel is arranged on the outer periphery of the support shell, and the panel is located on the front side of the occlusal section of the support shell.

[0008] Preferably, the flow guide member includes an elliptical cylinder portion and a plurality of flow guide vane portions integrally connected to the outer circumferential surface of the cylinder portion, and the cross sections of the support shell and the support tube are both rectangular.

[0009] Preferably, the guide vane portion is spirally distributed at the rear of the oxygen supply channel.

[0010] Preferably, the cylinder is divided into a contraction section 1, a maintaining section 1 and a diffusion section 1 from front to back, the diameters of the minor axes of the ellipses of the contraction section 1, the maintaining section 1 and the diffusion section 1 remain unchanged, and the major axes of the ellipses first decrease and then increase; the support shell is divided into a contraction section 2, a maintaining section 2 and a diffusion section 2 from front to back, the widths of the cross-sectional rectangles of the contraction section 2, the maintaining section 2 and the diffusion section 2 remain unchanged, and the lengths of the rectangles first decrease and then increase; the support tube is divided into a contraction section 3 and a maintaining section 3 from front to back, the two ends of the contraction section 3 are connected to the diffusion section 2 and the maintaining section 3 respectively, the lengths of the cross-sectional rectangles of the contraction section 3 and the maintaining section 3 remain unchanged, and the width of the cross-sectional rectangle of the contraction section 3 gradually decreases from the diffusion section 2 to the maintaining section 3.

[0011] Preferably, scale lines are provided on the periphery of the extension section of the support shell along the length direction.

[0012] Preferably, the silicone layer includes an inner silicone layer, a middle silicone layer and an outer silicone layer which are sequentially connected from the inside to the outside, the outer silicone layer is pre-embedded with a polyester fiber mesh, and the metal wire is embedded in the middle silicone layer.

[0013] Preferably, the support tube comprises a proximal section, a middle section and a distal section sequentially distributed in a direction away from the support shell, the metal wire is a spiral stainless steel wire, and the pitch of the stainless steel wire in the proximal section, middle section and distal section of the support tube increases sequentially.

[0014] Preferably, the stainless steel wires in the proximal and distal sections of the support tube are both single helical structures, and the stainless steel wires in the middle section are double helical structures.

[0015] Preferably, the outer periphery of the supporting shell engaging section has anti-slip grooves.

[0016] On the other hand, the present invention proposes a combined airway and digestive tract application system, comprising the above-mentioned adjustable diagnostic and treatment bite pad and an oxygen supply connector connected to the oxygen supply interface of the support shell, and the oxygen supply connector is connected to an external oxygen source through an oxygen delivery tube.

[0017] Compared with the existing technology, the present invention has the following beneficial technical effects: the present invention has an oxygen supply channel, which is suitable for airway-digestive tract combined intervention and diagnosis and treatment. The support tube can be bent into an oropharyngeal ventilation tube suitable for different physiological structures, and has an excellent tongue fall prevention rate and zero mucosal damage rate. A spiral oxygen flow channel is constructed by the guide plate to improve the oxygen supply efficiency. Breaking through the mutually exclusive limitations of traditional equipment functions, the airway-digestive tract diagnosis and treatment channel and the high-flow oxygen therapy system do not affect each other, successfully solving multiple technical contradictions such as oxygen supply efficiency and operating space, anatomical adaptation and safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural front view of embodiment 1 of the present invention;

[0019] Figure 2 for Figure 1 AA sectional view;

[0020] Figure 3 for Figure 1 The BB cross-sectional view shows that the two curved curves represent the state where the support tube is bent to both sides.

[0021] Figure 4 This is a cross-sectional view of the structure of the support tube bending upward in Example 1 of the present invention;

[0022] Figure 5 Schematic diagram of the structure of the flow guide member in the first embodiment of the present invention;

[0023] Figure 6 This is a structural cross-sectional view of embodiment 2 of the present invention.

[0024] Reference numerals: 1. support shell; 2. flow guide member; 21. cylinder portion; 22. flow guide plate portion; 3. oxygen supply connector; 4. support pipe; 5. panel; 51. belt connection port. DETAILED DESCRIPTION

[0025] Example 1

[0026] like Figure 1-Figure 5 As shown, the adjustable diagnostic and therapeutic bite block proposed in this embodiment includes a supporting shell 1, a flow guide 2, a supporting tube 4 and a panel 5.

[0027] like Figure 2 As shown, the support shell 1 is through-lined and features a front extension section, a rear occlusal section, and an oxygen supply port located in the extension section. The support shell 1 is injection-molded from medical-grade polycarbonate. The occlusal section of the support shell 1 features anti-slip grooves to facilitate stable occlusion for the patient.

[0028] The extended section of the support shell 1 is provided with graduated markings along its length. These markings are laser-etched (with an accuracy of ±0.5mm) and have a scale range of 40-80mm, complying with the GB / T 1219-2000 standard for geometrical gauges. The markings are coated with a fluorescent coating (excitation wavelength 405nm), achieving Class III visibility (GB / T18833-2012) in dark environments, enabling accurate calculation of incisor spacing.

[0029] The support tube 4 is connected to one end of the support shell 1 and includes a silicone layer and a metal wire embedded within the silicone layer. The metal wire is a spiral 316LVM medical stainless steel wire (ASTM F138 standard). The support tube 4 can be arbitrarily shaped into an oropharyngeal ventilation tube with different physiological structures. The cross-sections of the support shell 1 and the support tube 4 are both rectangular. To improve patient comfort and reduce damage to the patient's mouth and throat, the corners of the support shell 1 and the support tube 4 are chamfered and rounded.

[0030] The guide member 2 is arranged in the support shell 1, and an oxygen supply channel is formed between the guide member 2 and the inner wall of the support shell 1 to connect the oxygen supply interface with the support tube 4. The oxygen supply channel can be used to supply oxygen through the support tube 4. The guide member 2 includes an elliptical barrel 21 and a plurality of guide vane portions 22 integrally connected to the outer circumference of the barrel 21. The inner channel of the barrel 21 is separated from the oxygen supply channel, and the inner channel of the barrel 21 can be extended into the endoscopic instrument, so that the endoscopic operation and the oxygen supply process do not interfere with each other. The guide vane portions 22 are spirally distributed at the rear of the oxygen supply channel, inclined at 15°, and are arranged in six groups to perform spiral diversion at the oxygen supply channel to provide continuous high-flow oxygen supply during endoscopic operation.

[0031] like Figure 1 and Figure 5 As shown, the cylinder 21 serves as an elliptical base (long axis 18 mm, short axis 14 mm), and the outer layer is formed by the support shell 1 enveloping a rectangular frame (25×20 mm) to form an asymmetric sandwich channel.

[0032] The width of the cross-sectional rectangle of the interface between the support tube 4 and the support shell 1 gradually narrows from 20mm to 14mm to adapt to the oral cavity and throat, and the length of the cross-sectional rectangle remains unchanged at 25mm. The long axis of the main channel of the elliptical cylinder 21 is 18mm, the short axis is 14mm, and the cross-sectional area is 201mm 2 , compared with the traditional circular channel (Φ14mm, 154mm 2 ) increases throughput by 30.5%. Compatible with all gastrointestinal endoscopes and bronchoscopes, from the Olympus GIF-H290 (Φ9.8mm) to the Pentax ED-3490TK (Φ12mm).

[0033] The silicone layer includes an inner silicone layer, a middle silicone layer and an outer silicone layer connected in sequence from the inside to the outside. Each silicone layer is made of medical silicone material. The outer silicone layer is pre-embedded with a polyester fiber mesh, which is orthogonally woven (wire diameter 0.1mm, weaving density 12 mesh / cm 2 ) and is pre-buried in the outer silicone. The metal wire is embedded in the middle silicone layer. By combining different materials to optimize mechanical properties, a 316LVM stainless steel wire spiral array provides plastic support, a foamed silicone layer disperses stress, a polyester fiber mesh improves tear resistance, and a gradient hardness silicone functional design optimizes biocompatibility. It automatically adapts to the tongue shape under physiological conditions, precisely controlling the mucosal contact pressure within the safe threshold of 1.2kPa, while simultaneously achieving a 98.3% tongue fall prevention rate and zero mucosal damage.

[0034] like Figure 2-Figure 4 As shown, the support tube 4 includes a proximal section, a middle section, and a distal section distributed in sequence away from the support shell 1, and the pitch of the stainless steel wire in the proximal section, middle section, and distal section of the support tube 4 increases in sequence. The stainless steel wires in the proximal and distal sections of the support tube 4 are both single helical structures, and the stainless steel wire in the middle section is a double helical structure. For example, the stainless steel wire in the proximal section has a pitch of 1 mm and a helical angle of 30° to provide rigid support. The stainless steel wire in the middle section transitions to a double helical staggered braid, with a main helical pitch of 3 mm and an auxiliary helical pitch of 5 mm. The stainless steel wire in the distal section adopts a single helical open structure with a pitch of 6 mm to enhance flexibility.

[0035] like Figure 1-Figure 4 As shown, the panel 5 is arranged on the periphery of the support shell 1. The panel 5 is located in front of the occlusal section of the support shell 1, so that the patient can only bite the occlusal section with his teeth, which plays a separating role. At the same time, the panel 5 is an arc-shaped plate structure adapted to the patient's lips. It adopts a topological optimization design and establishes a Gaussian curvature distribution model based on 200 facial scanning data. The contact surface curvature radius matching rate is greater than 90%, and it blocks the front side of the patient's lips, improving the comfort of using the dental pad. Both ends of the panel 5 have a belt connection port 51 for connecting the head fixing strap. The patient wears the head fixing strap on the head, extends the support tube 4 of the dental pad into the patient's mouth, and the panel 5 blocks the patient's lips to achieve stable use.

[0036] This adjustable diagnostic and therapeutic mouthguard can be used in a combined airway and digestive tract system. The system also includes an oxygen supply connector 3 connected to the oxygen supply interface of the support shell 1. The oxygen supply connector 3 adopts an ISO 5356-1 standard 15mm tapered connector with an inner diameter of 4mm and an outer diameter of 6mm, and a connection strength of >50N. The oxygen supply connector 3 is connected to a high-flow oxygen source via a standard oxygen delivery tube.

[0037] This embodiment has an oxygen supply channel, which is suitable for airway-digestive tract combined intervention and diagnosis and treatment. The support tube 4 is embedded with stainless steel wire, which can be bent and deformed to form an oropharyngeal ventilation tube suitable for different physiological structures, with excellent tongue fall prevention rate and zero mucosal damage rate. A spiral oxygen flow channel is constructed by the guide plate portion 22 to improve the oxygen supply efficiency. Breaking through the functional mutual exclusion limitations of traditional equipment, the airway-digestive tract diagnosis and treatment channel and the high-flow oxygen therapy system do not affect each other. This integrated solution successfully solves multiple technical contradictions such as oxygen supply efficiency and operating space, anatomical adaptation and safety protection, and provides an innovative equipment platform for airway-digestive tract combined intervention and diagnosis and treatment of critically ill patients.

[0038] Example 2

[0039] like Figure 6 As shown, the adjustable diagnostic and therapeutic tooth pad proposed in this embodiment is different from the first embodiment in that: the barrel 21 is divided into a contraction section 1, a maintenance section 1 and a diffusion section 1 from front to back. The diameter of the ellipse minor axis of the contraction section 1, the maintenance section 1 and the diffusion section 1 remains unchanged, and the major axis of the ellipse first decreases and then increases. For the guide vane 22 on the barrel 21, the guide vane 22 on the major axis side is inclined by 40°, and the guide vane 22 on the minor axis side is inclined by 30°. The distance from the outer end of the guide vane 22 on the major axis side to the inner wall of the support shell 1 is approximately 2 mm, and the distance from the outer end of the guide vane 22 on the minor axis side to the inner wall of the support shell 1 is approximately 0.8 mm. The parameter changes of each segment of the barrel 21 are specifically shown in Table 1 below:

[0040] Table 1: Geometric parameter changes of each segment of the barrel 21

[0041]

[0042] The support shell 1 is divided into a second contraction section, a second maintaining section, and a second diffusion section from front to back. The width of the cross-sectional rectangle of the second contraction section, the second maintaining section, and the second diffusion section remains unchanged, while the length of the rectangle first decreases and then increases. See Table 2 below for details:

[0043] Table 2: Geometric parameter changes of each segment of support shell 1

[0044]

[0045] The support tube 4 is divided into a contraction section three and a maintenance section three from front to back. The two ends of the contraction section three are connected to the diffusion section two and the maintenance section three respectively. The cross-sectional rectangular length of the contraction section three and the maintenance section three remains unchanged at 25 mm. The cross-sectional rectangular width of the contraction section three gradually decreases from the diffusion section two to the maintenance section three to adapt to the gradual narrowing of the oral cavity and throat, from 20 mm to 14 mm.

[0046] In this embodiment, a special-shaped Venturi composite structure is adopted, and the channel cross-section presents a dynamic gradient feature, realizing laminar acceleration dominated by the Venturi effect (long axis zone), wall flow guided by the Coanda effect (short axis zone), and Taylor-Couette flow to suppress turbulence generation (gradual transition zone) in a limited space, thereby increasing the throat flow velocity and outlet flow velocity of oxygen, and improving the oxygen concentration distribution uniformity index, while reducing the turbulent energy dissipation rate and suppressing turbulence.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. Adjustable diagnostic and therapeutic dental pad, characterized by: include: The support shell (1) is through-connected on the inside and has a front extension section and a rear engagement section, as well as an oxygen supply interface located in the extension section; A support tube (4) is connected to one end of the support shell (1), and comprises a silicone layer and a metal wire embedded in the silicone layer; The flow guide (2) is arranged in the support shell (1) and forms an oxygen supply channel between the flow guide and the inner wall of the support shell (1) to connect the oxygen supply interface with the support tube (4); The panel (5) is arranged on the outer periphery of the support shell (1) and is located at the front side of the bite section of the support shell (1).

2. The adjustable diagnostic and therapeutic bite block according to claim 1, characterized in that: The flow guide (2) comprises an elliptical cylinder (21) and a plurality of flow guide plate portions (22) integrally connected to the outer peripheral surface of the cylinder (21); the cross sections of the support shell (1) and the support tube (4) are both rectangular.

3. The adjustable diagnostic and therapeutic bite block according to claim 2, characterized in that: The guide plate portion (22) is spirally distributed at the rear of the oxygen supply channel.

4. The adjustable diagnostic and therapeutic bite block according to claim 2, characterized in that: The barrel (21) is divided from front to back into a contraction section 1, a maintenance section 1 and a diffusion section 1. The diameters of the elliptical minor axes of the contraction section 1, the maintenance section 1 and the diffusion section 1 remain unchanged, and the elliptical major axes first decrease and then increase. The support shell (1) is divided from front to back into a contraction section 2, the maintenance section 2 and the diffusion section 2. The widths of the cross-sectional rectangles of the contraction section 2, the maintenance section 2 and the diffusion section 2 remain unchanged, and the lengths of the rectangles first decrease and then increase. The support tube (4) is divided from front to back into a contraction section 3 and a maintenance section 3. The two ends of the contraction section 3 are connected to the diffusion section 2 and the maintenance section 3 respectively. The lengths of the cross-sectional rectangles of the contraction section 3 and the maintenance section 3 remain unchanged, and the width of the cross-sectional rectangle of the contraction section 3 gradually decreases along the direction from the diffusion section 2 to the maintenance section 3.

5. The adjustable diagnostic and therapeutic bite block according to claim 1, characterized in that: The outer periphery of the extension section of the support shell (1) is provided with scale lines along the length direction.

6. The adjustable diagnostic and therapeutic bite block according to claim 1, characterized in that: The silicone layer comprises an inner silicone layer, a middle silicone layer and an outer silicone layer which are sequentially connected from the inside to the outside. The outer silicone layer is pre-embedded with a polyester fiber mesh, and the metal wire is embedded in the middle silicone layer.

7. The adjustable diagnostic and therapeutic bite block according to claim 6, characterized in that: The support tube (4) comprises a proximal section, a middle section and a distal section which are sequentially distributed in a direction away from the support shell (1); the metal wire is a spiral stainless steel wire; and the pitch of the stainless steel wire in the proximal section, the middle section and the distal section of the support tube (4) increases sequentially.

8. The adjustable diagnostic and therapeutic bite block according to claim 7, characterized in that: The stainless steel wires in the proximal and distal sections of the support tube (4) are both single helical structures, and the stainless steel wires in the middle section are double helical structures.

9. The adjustable diagnostic and therapeutic bite block according to claim 1, characterized in that: The outer periphery of the bite section of the support shell (1) is provided with anti-slip grooves.

10. A combined airway and digestive tract application system, characterized in that: The adjustable diagnostic and therapeutic tooth pad comprises the adjustable diagnostic and therapeutic tooth pad according to any one of claims 1 to 9, and further comprises an oxygen supply connector (3) connected to the oxygen supply interface of the support shell (1), and the oxygen supply connector (3) is connected to an external oxygen source through an oxygen delivery tube.

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