Adjustable non-invasive oral saliva suction tube

Abstract

The utility model provides a kind of adjustable non-invasive oral cavity saliva suction pipe, belong to medical instrument technical field, the adjustable non-invasive oral cavity saliva suction pipe includes main body pipeline, adjusting mechanism, suction end, connecting end, sealing ring and bending part, adjusting mechanism is set in main body pipeline middle section, including the rotation separating piece of screw connection with main body pipeline, suction end is conical structure, bending part is set in close to suction end position, the effective length of main body pipeline is adjusted by the rotation of rotation separating piece, the technical problem that traditional fixed length saliva suction pipe cannot adapt to different patient oral cavity structure is solved, and use comfort and operation convenience are improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically, it relates to an adjustable non-invasive oral suction tube. Background Technology

[0002] In existing technologies, saliva suction tubes used in oral medical procedures are mostly designed with a fixed length, which cannot be adjusted according to individual differences such as the size of the patient's mouth and the depth of the pharynx. This often leads to situations where the length is unsuitable during use. If it is too long, it may touch the posterior pharyngeal wall and cause a gag reflex; if it is too short, it may not be able to effectively reach the target position for suction. At the same time, the rigid structure of traditional saliva suction tubes can easily cause unnecessary stimulation and damage to the soft tissues of the mouth when inserted. The operation is not flexible enough, and medical staff need to prepare a variety of saliva suction tubes of different lengths to adapt to different situations, which increases costs and operational complexity. In other words, existing technologies have technical problems such as poor adaptability, low patient comfort, and inconvenience of use.

[0003] The length of existing oral suction tubes is fixed and cannot be adjusted according to the oral structure of different patients, resulting in technical problems such as inconvenience and patient discomfort. Utility Model Content

[0004] In view of this, the present invention provides an adjustable non-invasive oral suction tube, which can solve the technical problem that the existing oral suction tubes have a fixed length and cannot be adjusted according to the oral structure of different patients, resulting in inconvenience and discomfort for patients.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an adjustable non-invasive oral suction tube, including a main tube, an adjustment mechanism, a suction end, a connecting end, a sealing ring, and a bending part. The adjustment mechanism is located in the middle section of the main tube and includes a rotating separator that is threadedly connected to the main tube. The suction end is located at one end of the main tube, and the connecting end is located at the other end of the main tube.

[0007] The technical effects of the adjustable non-invasive oral suction tube provided by this utility model are as follows: By setting an adjustment mechanism and a rotating separation component, the length of the suction tube can be adjusted according to the specific condition of the patient's oral cavity, which improves the applicability and comfort of the suction tube and solves the problem that traditional fixed-length suction tubes cannot meet the needs of different patients.

[0008] Based on the above technical solution, the adjustable non-invasive oral suction tube of this utility model can be further improved as follows:

[0009] The rotating separator is a cylindrical structure with a threaded groove on its inner wall and a threaded protrusion on the outer wall of the main pipe that mates with the threaded groove. The effective length of the main pipe can be adjusted when the rotating separator rotates relative to the main pipe.

[0010] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the threaded connection structure enables the rotating separator to smoothly adjust the effective length of the main pipe, and the adjustment process is continuous and smooth, avoiding the inaccuracy problem caused by step adjustment. At the same time, the threaded connection has good stability and reliability.

[0011] Furthermore, the main pipeline includes a first pipeline and a second pipeline. The first pipeline and the second pipeline are connected end to end by a retractable corrugated pipe. External threads are provided on the outer walls of the connection points between the first pipeline, the second pipeline and the corrugated pipe. Rotating collars are provided at both ends of the corrugated pipe. One side of the rotating collar is snapped onto the corrugated pipe, and the other side of the rotating collar is fixedly connected to the first pipeline and the second pipeline respectively.

[0012] Furthermore, the suction end has a conical structure, with an outlet diameter of 3–6 mm and a length of 15–25 mm. The surface of the suction end is smooth and burr-free.

[0013] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the conical suction end design conforms to the oral anatomy structure, can effectively fit the inner wall of the oral cavity, reduce irritation to soft tissues, the smooth surface avoids tissue damage, and improves patient comfort.

[0014] Furthermore, the bend is located near the suction end of the main pipe, with a bending angle of 30° to 60° and a radius of curvature of 20 to 40 mm.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the design of the curved part allows the saliva suction tube to better adapt to the physiological curvature of the oral cavity, reduces the resistance during insertion, reduces the stimulation of the pharynx, and improves the suction efficiency.

[0016] Furthermore, the rotating separator is fitted at the connection between the first pipe and the second pipe, and the rotating separator completely covers the outside of the bellows. The internal threads on the inner walls at both ends of the rotating separator are symmetrical to each other.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows:

[0018] Furthermore, the connecting end is provided with an external thread, the pitch of which is 1 to 2 mm and the outer diameter of which is 8 to 12 mm. The connecting end is used to connect with a suction device.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the standardized external thread connection ensures compatibility with various suction devices, the thread connection is firm and reliable, not easy to fall off, and ensures safety in use.

[0020] Furthermore, the inner diameter of the main pipe is 4-8 mm, the wall thickness of the main pipe is 1-2 mm, and the main pipe is made of medical-grade polyvinyl chloride material.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the appropriate inner diameter and wall thickness ensure good suction effect and structural strength, and the medical-grade materials ensure biosafety and chemical stability, meeting the requirements for use of medical devices.

[0022] Furthermore, the outer surface of the rotating separator is provided with anti-slip texture, which consists of horizontal stripes with a spacing of 2 to 4 mm and a depth of 0.5 to 1 mm.

[0023] The beneficial effects of adopting the above-mentioned improvement scheme are: the anti-slip texture enhances the grip during operation, especially in humid environments, it can maintain good operation control, and improve the safety and convenience of use.

[0024] Furthermore, a transition section is provided between the suction end and the main pipe. The length of the transition section is 5 to 10 mm, and the inner diameter of the transition section gradually decreases from the inner diameter of the main pipe to the outlet diameter of the suction end.

[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the gradual design of the transition section reduces fluid resistance, improves suction efficiency, and avoids the impact of abrupt cross-sectional changes on the fluid, thus extending the service life of the equipment.

[0026] Compared with the prior art, the advantages of the adjustable non-invasive oral suction tube provided by this utility model are as follows: By setting an adjustable rotating separation component, this utility model realizes the continuous adjustment of the suction tube length. Combined with the humanized design of the curved part and the conical suction end, it significantly improves the comfort of patients and the ease of operation for medical staff. It effectively solves the technical problems of poor adaptability and inconvenience of use in the prior art, while ensuring good sealing and safety. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1This is a schematic diagram of an adjustable non-invasive oral suction tube.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Main pipe; 12. Anti-slip texture; 13. Transition section; 14. External thread; 15. First pipe; 16. Second pipe; 17. Corrugated pipe; 2. Adjustment mechanism; 3. Suction end; 4. Connection end; 7. Bending part; 9. Threaded groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, this utility model provides an adjustable non-invasive oral suction tube, including a main tube 1, an adjustment mechanism 2, a suction end 3, a connecting end 4, a sealing ring, and a bending part 7. The adjustment mechanism 2 is located in the middle section of the main tube 1. The adjustment mechanism 2 includes a rotating separator, which is a cylindrical structure with a threaded groove 9 on its inner wall. The outer wall of the main tube 1 has a threaded protrusion that precisely matches the threaded groove 9. The pitch of the threaded groove 9 and the threaded protrusion is 2mm. Through the rotational movement of the rotating separator relative to the main tube 1, the effective length of the main tube 1 can be continuously adjusted within the range of 50-120mm, with an adjustment accuracy of up to 1mm. The suction end 3 is located at the front end of the main tube 1, adopts a conical structure design, has an outlet diameter of 4mm, a length of 20mm, and a surface... After precision polishing, the surface is smooth and burr-free. The curved section 7 is located near the suction end 3 of the main pipe 1, with a bending angle of 45° and a radius of curvature of 30mm, which conforms to the physiological curvature of the oral cavity. The connecting end 4 is located at the rear end of the main pipe 1 and has an external thread 14 with a pitch of 1.5mm and an outer diameter of 10mm, which is compatible with the interface of standard suction equipment. The sealing ring is made of medical silicone to ensure sealing during the adjustment process. The outer surface of the rotating separation part has an anti-slip texture with horizontal stripes spaced 3mm apart and 0.8mm deep, which enhances the grip during operation. The transition section 13 is located between the suction end 3 and the main pipe 1, with a length of 8mm and an inner diameter that gradually decreases from the inner diameter of the main pipe 1 (6mm) to the outlet diameter of the suction end 3 (4mm), ensuring a smooth fluid transition.

[0033] The main pipeline includes a first pipeline 15 and a second pipeline 16. The first pipeline 15 and the second pipeline 16 are connected end to end by a retractable corrugated pipe 17. External threads 14 are provided on the outer walls of the connection between the first pipeline 15, the second pipeline 16 and the corrugated pipe 17. Rotating collars are provided at both ends of the corrugated pipe 17. One side of the rotating collar is snapped onto the corrugated pipe 17, and the other side of the rotating collar is fixedly connected to the first pipeline 15 and the second pipeline 16 respectively.

[0034] The rotating separator is fitted at the connection between the first pipe 15 and the second pipe 16. The rotating separator completely covers the outside of the bellows 17, and the internal threads on the inner walls at both ends of the rotating separator are symmetrical to each other.

[0035] The production process of this solution includes the extrusion molding of the main pipe 1, using medical-grade polyvinyl chloride raw material, formed by a precision extruder, with a wall thickness controlled at 1.5mm and an inner diameter of 6mm. The rotating separator is manufactured by injection molding using ABS engineering plastic, and the threaded groove 9 is completed by precision machining with a tolerance controlled within ±0.05mm. The suction end 3 is formed into a conical structure by injection molding and machining, with a surface roughness of Ra0.8μm. The sealing ring is injection molded using liquid silicone. Before use, all parts are first cleaned and disinfected. Then, the rotating separator is fitted onto the main pipe 1 and adjusted to a suitable length by rotation. The appropriate insertion depth is selected according to the patient's oral cavity condition. After the connecting end 4 is connected to the suction device, it can be used. During use, the length can be adjusted at any time by rotating the separator, making the operation simple and quick.

[0036] The technical advantage of this solution compared to existing technologies lies in the fact that it achieves continuous and precise length adjustment through a threaded transmission mechanism, overcoming the limitations of traditional fixed length. The design of the rotating separator makes the adjustment process smooth and controllable. The humanized design of the conical suction end 3 and the curved part 7 significantly reduces irritation to oral tissues and improves patient comfort. The sealing ring ensures the system's sealing performance and suction effect. The overall structure is simple and reliable, easy to manufacture and maintain, has reasonable production costs, and a long service life, meeting the diverse needs of clinical use.

[0037] In use, the first pipe 15 and the second pipe 16 can rotate independently, thereby changing the overall length of the main pipe 1. When the first pipe 15 or the second pipe 16 is relatively displaced in the rotating separator, the bellows 17 is stretched or compressed. Due to the presence of the rotating collar, the rotation of the first pipe 15 and the second pipe 16 will not cause the bellows 17 to rotate.

[0038] Example 1

[0039] Example 1 adopts a basic design scheme. The main pipe 1 is made of medical-grade polyvinyl chloride material, with an outer diameter of 9mm, an inner diameter of 6mm, a wall thickness of 1.5mm, and a length of 100mm. The material conforms to ISO standards. The tube meets the 10993 biocompatibility standard and is manufactured using an extrusion molding process. The extrusion temperature is controlled at 180℃, the traction speed is 2m / min, and water cooling is employed to ensure dimensional accuracy and surface quality. The rotating separator is made of ABS engineering plastic with an outer diameter of 15mm, an inner diameter of 9.2mm, and a length of 30mm. The thread pitch of the threaded groove 9 is 2mm, and the thread depth is 1mm. It is precision machined after injection molding at an injection temperature of 220℃, a mold temperature of 60℃, and an injection pressure of 80MPa. Machining is performed using a CNC lathe with tolerances controlled within ±0.03mm and a surface roughness Ra of 1.6μm. The suction end 3 is made of medical-grade silicone with a Shore A60 hardness, a cone length of 20mm, an outlet diameter of 4mm, and a root diameter of 6mm. It is injection molded from liquid silicone and then vulcanized. The temperature is 160℃, the vulcanization time is 3 minutes, and the surface is smooth after molding without burrs or flash. The curved part 7 is manufactured by thermoforming at a heating temperature of 120℃, a bending angle of 45°, and a radius of curvature of 30mm. Stress relief treatment is performed after molding. The external thread 14 of the connecting end 4 is manufactured by rolling process with a thread specification of M10×1.5 and galvanized for corrosion protection. The sealing ring is made of medical-grade silicone with a hardness of Shore A40 and a wire diameter of 2mm, and is injection molded using liquid silicone. The technical effects of this embodiment are: an adjustment range of 50-120mm, an adjustment accuracy of 1mm, good sealing performance, and a service life of more than 1000 adjustment operations. Compared with traditional fixed-length saliva suction tubes, the adaptability is improved by 80%, patient comfort is significantly improved, the convenience of operation for medical staff is greatly enhanced, production costs are reasonably controlled, and market competitiveness is strong.

[0040] Example 2

[0041] Example 2 adopts an improved design. The rotating separator uses a double-threaded structure with an outer diameter of 18mm, an inner diameter of 9.5mm, and a length of 35mm. The coarse thread pitch is 5mm for quick adjustment, and the fine thread pitch is 0.5mm for precision adjustment. The material is polyoxymethylene engineering plastic, which has better wear resistance and dimensional stability. It is manufactured through precision CNC machining with a machining accuracy of ±0.02mm. The surface treatment uses an anodizing process to improve corrosion resistance. The detachable locking component is made of aluminum alloy, CNC machined, and anodized. The indicator ring is made of transparent PC material with a scale accuracy of 0.5mm and is marked with laser engraving. The replaceable suction end 3 includes three specifications: standard, extended, and child-friendly. The standard type is 20mm long with an outlet diameter of 4mm; the extended type is 30mm long with an outlet diameter of 3mm; and the child-friendly type is 15mm long with an outlet diameter of 2mm. All are made of medical-grade 316L stainless steel with electropolished surfaces. The surface roughness is Ra0.4μm. The quick connector is made of medical-grade PEEK material and is precision injection molded. The adjustable bending section 7 has a built-in medical-grade titanium alloy wire frame with a diameter of 0.8mm and is covered with medical-grade silicone. The adjustable angle range is 0° to 90°, and the adjustment torque is less than 0.5N·m. The segmented main pipe 1 includes three sections: a 40mm front section, a 30mm middle section, and a 30mm rear section. The connector adopts a threaded locking structure, and the seal adopts a double O-ring design. The multi-functional connection end 4 integrates a standard conical interface, a quick-clamp interface, and a threaded locking interface. The material is medical-grade stainless steel with a passivated surface. The technical effect of this embodiment is that the adjustment range is 30 to 150mm, the coarse adjustment accuracy is 5mm, the fine adjustment accuracy is 0.5mm, the bending angle is adjustable from 0° to 90°, the sealing performance is excellent, the service life exceeds 5000 operations, the adaptability is 150% higher than that of traditional products, and the operating accuracy is 300% higher, providing a more complete and advanced solution for clinical use.

[0042] In the improved embodiment based on Example 1, the rotating separator adopts a double-thread structure design, including two sets of thread systems: a coarse thread and a fine thread. The coarse thread is used for quick adjustment with a pitch of 5 mm, while the fine thread is used for precision adjustment with a pitch of 0.5 mm. A switching mechanism allows switching between the two adjustment modes, including a fixed locking component and a detachable indicator ring. The indicator ring is marked with scale marks for easy and accurate reading of the adjustment position. The suction end 3 is designed as a replaceable structure, including standard, extended, and pediatric types, which are connected via quick connectors to adapt to different clinical needs. The bending part 7 adopts an adjustable bending design with a built-in flexible metal wire frame, which can adjust the bending angle as needed, ranging from 0° to 90°. The main tube 1 adopts a segmented design, including a front section, a middle section, and a rear section, which are connected by precision connectors. Different lengths can be combined as needed. The connection end 4 is designed as a multi-functional connector, compatible with standard interface, quick interface, and locking interface connection methods. The sealing ring adopts a double sealing design, including a main sealing ring and an auxiliary sealing ring, to improve sealing reliability.

[0043] During the production and use of the improved solution, the double-threaded rotating separator needs to be manufactured using precision CNC machining equipment, requiring higher machining accuracy. The detachable locking parts and indicator ring are manufactured using ultrasonic welding technology. The replaceable suction end 3 is made of medical-grade stainless steel and silicone composite material. The quick connector is manufactured using precision injection molding technology. The metal wire frame of the adjustable bending part 7 is made of medical-grade titanium alloy material and is formed using micro-machining technology. The joint of the segmented main pipe 1 adopts a special sealing structure design. The multi-functional connection end 4 integrates multiple interfaces into one unit. When using it, the corresponding functional mode can be selected according to specific needs, making the operation more flexible and diverse, the adjustment accuracy further improved, and the adaptability stronger.

[0044] The improvement over the basic solution lies in providing both coarse and fine adjustment modes, significantly enhancing adjustment accuracy and efficiency. The replaceable suction end 3 expands the applicability, allowing one device to meet various clinical needs. The adjustable bending section 7 enhances operational flexibility, and the segmented design provides greater freedom of combination. The multi-functional connection end 4 improves device compatibility, and the double-sealing design further enhances reliability. Compared to existing technologies, the improved solution not only solves the length adjustment problem but also achieves comprehensive improvements in accuracy, adaptability, and compatibility, providing a more complete solution for clinical use. Its technological advancement and practicality are significantly enhanced.

[0045] Specifically, the principle of this utility model is as follows: by utilizing the principle of threaded transmission, the effective length of the main pipe is precisely adjusted through the rotation of the rotating separator; the sealing ring ensures the system's airtightness; the geometric design of the curved part and the conical suction end conforms to ergonomic principles, reducing insertion resistance and tissue irritation; the overall structure is simple and reliable, easy to manufacture and use; and the perfect unity of function is achieved through the ingenious combination of mechanical structures.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An adjustable non-invasive oral suction tube, comprising a main tube, an adjustment mechanism, a suction end, a connecting end, a sealing ring, and a curved portion, characterized in that, The regulating mechanism is located in the middle section of the main pipeline. The regulating mechanism includes a rotating separator, which is connected to the main pipeline by a threaded connection. The suction end is located at one end of the main pipeline, and the connection end is located at the other end of the main pipeline.

2. The adjustable non-invasive oral saliva suction tube according to claim 1, characterized in that, The rotating separator is a cylindrical structure with a threaded groove on its inner wall and a threaded protrusion on the outer wall of the main pipe that mates with the threaded groove. The effective length of the main pipe can be adjusted when the rotating separator rotates relative to the main pipe.

3. An adjustable non-invasive oral saliva suction tube according to claim 2, characterized in that, The main pipeline includes a first pipeline and a second pipeline. The first pipeline and the second pipeline are connected end to end by a retractable corrugated pipe. External threads are provided on the outer wall of the connection between the first pipeline, the second pipeline and the corrugated pipe. Rotating collars are provided at both ends of the corrugated pipe. One side of the rotating collar is snapped onto the corrugated pipe, and the other side of the rotating collar is fixedly connected to the first pipeline and the second pipeline respectively.

4. An adjustable non-invasive oral saliva suction tube according to claim 3, characterized in that, The suction end has a conical structure, with an outlet diameter of 3–6 mm and a length of 15–25 mm. The surface of the suction end is smooth and burr-free.

5. An adjustable non-invasive oral saliva suction tube according to claim 4, characterized in that, The bend is located near the suction end of the main pipe, with a bending angle of 30° to 60° and a radius of curvature of 20 to 40 mm.

6. An adjustable non-invasive oral saliva suction tube according to claim 5, characterized in that, The rotating separator is fitted at the connection between the first and second pipes, and completely covers the outside of the bellows. The internal threads on the inner walls at both ends of the rotating separator are symmetrical to each other.

7. An adjustable non-invasive oral saliva suction tube according to claim 6, characterized in that, The connecting end is provided with an external thread, the pitch of which is 1 to 2 mm and the outer diameter of which is 8 to 12 mm. The connecting end is used to connect with a suction device.

8. An adjustable non-invasive oral saliva suction tube according to claim 7, characterized in that, The inner diameter of the main pipe is 4-8mm, the wall thickness is 1-2mm, and the main pipe is made of medical-grade polyvinyl chloride material.

9. An adjustable non-invasive oral saliva suction tube according to claim 8, characterized in that, The outer surface of the rotating separator is provided with anti-slip texture, which consists of horizontal stripes with a spacing of 2-4 mm and a depth of 0.5-1 mm.

10. An adjustable non-invasive oral saliva suction tube according to claim 9, characterized in that, A transition section is provided between the suction end and the main pipe. The length of the transition section is 5 to 10 mm, and the inner diameter of the transition section gradually decreases from the inner diameter of the main pipe to the outlet diameter of the suction end.

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