A nasal irrigation device

Abstract

This utility model relates to the field of medical device technology, specifically a nasal irrigator suitable for drainage, irrigation, and aspiration of the nasal cavity. It includes an irrigation tube, a suction tube, an outer tube, a stainless steel spring, a suction tube connector, a sealing plug, a fixing seat, a sealing ring, a housing, a suction connecting tube, an irrigation connecting tube, a suction tube connector, and an irrigation tube connector. The nasal irrigator has simultaneous irrigation and aspiration functions, enabling simultaneous irrigation and aspiration of the nasal cavity. Nasal irrigation comfort is significantly improved. The irrigation tube of the nasal irrigator is thin and can be bent at any angle, facilitating irrigation of deep cavities in the nasal cavity and sinuses.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a nasal irrigation device suitable for drainage, irrigation and aspiration of nasal passages. Background Technology

[0002] Currently, with increasing environmental pollution and growing public awareness of health, nasal hygiene is receiving more and more attention. The nasal cavity is an important part of the human respiratory tract, and its cleanliness is crucial for maintaining airway patency and health. However, due to environmental pollution, allergies, colds, and other reasons, dust, bacteria, viruses, and other harmful substances often accumulate in the nasal cavity, leading to discomfort such as nasal congestion, runny nose, and sneezing. Traditional nasal cleaning methods mainly include using saline nasal drops and sprays, but these methods have limited cleaning effectiveness and cannot effectively remove dirt and secretions deep within the nasal cavity.

[0003] For diseases occurring within the nasal cavity and sinuses, such as sinusitis, sinus cysts, and nasal polyps, surgical treatment is the primary approach. Before or during surgery, patients often have significant amounts of blood clots or purulent secretions in their sinus cavities (including the maxillary, ethmoid, frontal, and sphenoid sinuses). Therefore, postoperative nasal irrigation is frequently necessary. This involves administering saline or a medicated irrigating solution into the sinuses to clean them. The saline solution, now mixed with impurities, flows out of the sinus cavities, effectively clearing the sinuses. Thus, sinus irrigation is an important adjunctive treatment method in otolaryngological surgery.

[0004] Currently, nasal irrigators on the market are mainly of two types: manual and electric. Manual nasal irrigators typically consist of an irrigation bottle, a nozzle, and a connecting tube. To use them, saline solution is filled into the bottle, and then squeezed to spray the saline solution into the nasal cavity for irrigation. The advantages of manual nasal irrigators are their low price and ease of operation; however, they also have significant disadvantages, such as unstable irrigation pressure, a risk of choking, and poor irrigation effect. Electric nasal irrigators typically consist of a main unit, a nozzle, and a connecting tube. To use them, saline solution is filled into the main unit, and then driven by a motor, the saline solution is sprayed into the nasal cavity for irrigation. The advantages of electric nasal irrigators are stable irrigation pressure, less risk of choking, and good irrigation effect; however, their disadvantages include higher price and more complex operation.

[0005] While existing nasal irrigators have improved cleaning effectiveness to some extent, they still have some shortcomings. For example, they are complex to operate, requiring doctors to master certain skills; the irrigation pressure is difficult to control, potentially causing damage to the nasal cavity; and the disposal of waste fluid after irrigation is inconvenient, easily leading to secondary pollution. Most existing nasal irrigators / tubes use straight nozzles with an outlet at the end of the tube, allowing water to be sprayed directly into the sinuses. However, due to the complex spatial structure of the sinuses and the narrow sinus openings, the direct water flow cannot reach all surfaces within the sinus cavity that require rinsing, resulting in incomplete cleaning and poor irrigation effect. Most existing sinus irrigators on the market lack waste fluid recovery functions. When irrigating the sinuses with saline solution post-operatively, patients are often supine or lateral, making it easy for waste fluid to flow into the trachea along the nasopharynx, causing choking, coughing, and pain, and in severe cases, even suffocation. Furthermore, failure to promptly recover waste fluid during sinus irrigation can easily cause pressure injury. Commercially available sinus drainage and irrigation equipment is used independently. After the drainage tube is used to aspirate the pus in the sinus, the instrument is changed and the irrigation is performed again. This makes the operation cumbersome for doctors and the secondary approach increases the patient's pain. Utility Model Content

[0006] This utility model addresses the shortcomings of existing technologies by providing a nasal irrigation and aspiration device for nasal drainage, irrigation, and fluid suction. The technical solution adopted to overcome the shortcomings of existing technologies is as follows:

[0007] A nasal irrigation device includes an irrigation tube, a suction tube, an outer tube, a stainless steel spring, a suction tube connector, a sealing plug, a fixing seat, a sealing ring, a housing, a suction connecting tube, an irrigation connecting tube, a suction tube connector, and an irrigation tube connector.

[0008] The housing contains a flushing pipe, a sealing plug, and a suction pipe connector. One end of the flushing pipe extends out of the housing, and the other end of the flushing pipe is connected to the housing. An outer pipe is fitted onto the flushing pipe and slides along the flushing pipe. A suction pipe is fitted onto one end of the outer pipe, and the other end of the outer pipe is connected to the suction pipe connector. The outer pipe is connected to the suction connection pipe through the suction pipe connector. The suction connection pipe is equipped with a suction pipe joint, which is connected to a negative pressure air extraction device.

[0009] The flushing pipe is connected to the shell and the flushing connection pipe. The flushing connection pipe has a flushing pipe connector, which is connected to the flushing water. The suction pipe connector is connected to the shell by a stainless steel spring. The stainless steel spring is fitted on the outside of the outer pipe. The suction pipe connector causes the outer pipe to slide along the flushing pipe. A sealing plug is fixed inside the shell. A three-way connector is provided on the suction pipe connector. The first connector of the three-way connector is connected to the outer pipe. The second connector of the three-way connector is connected to the suction connection pipe. The third connector of the three-way connector is connected to the atmosphere. The sliding of the suction pipe connector causes the third connector of the three-way connector to fit and seal with the sealing plug. The first connector of the three-way connector is connected to the second connector. The suction pipe forms a negative pressure suction channel to draw in the flushing water.

[0010] The suction tube connector has a sealing plug inside. Sliding the connector allows the suction channel to contact the sealing plug, blocking it and enabling suction. A single-channel connector connects to the suction tube and outer tube at one end and extends through the flushing tube. In a dual-channel connector, one channel is the suction channel, featuring a dumbbell-shaped piston mechanism with a sealing groove in the center. The suction switch channel is designed to contact the user's fingers, with a mesh-like, horizontally-lined anti-slip protrusion perpendicular to the direction of movement. The central part of the suction switch channel is designed to seal when pressed down, facilitating contact with the user's fingers.

[0011] The housing has an internal cavity, through which an outer tube, a flushing tube, and a suction tube are connected. A circular hole is located at one end of the housing, through which the flushing tube and the outer tube extend. A notch is located on the housing, and a gripping part is provided on the suction tube connector. The gripping part of the suction tube connector extends out of the housing through the notch. One end of a stainless steel spring is fixedly connected to the housing, and the other end is fixedly connected to the suction tube connector. The stainless steel spring applies pressure to press the suction tube connector tightly against the inner wall of the cavity. Two circular holes are located at the other end of the housing, through which a suction connecting tube and a flushing connecting tube are connected. Anti-slip strips are provided on the outer wall of the housing.

[0012] The flushing pipe is divided into a straight pipe section and a pipe head. The pipe head is located at the end of the straight pipe section and is spherical. The straight pipe section is provided with flushing holes near the pipe head. There are 2 to 10 flushing holes. The flushing holes are distributed around the outer edge of the flushing pipe. The angle between the opening direction of the flushing holes and the axial direction of the flushing pipe is 10° to 90°.

[0013] The flushing holes are arranged in a matrix or spiral along the straight pipe section; the pipe head is provided with flushing holes, and the angle S between the opening direction of the flushing holes and the axial direction of the flushing pipe is 10° to 90°. This achieves multi-directional flushing, improves the flushing effect, and reduces the flushing time.

[0014] The rinsing tube is made of 304 medical stainless steel, with a diameter of 1-2 mm and a length of 100-300 mm. The suction tube is made of plastic, with a diameter of 1.3-3 mm and a length of 100-200 mm. A gap of 0.3-1 mm is left between the rinsing tube and the suction tube. The pressure range of the negative pressure suction device is -20 to -100 kPa. The suction tube of the nasal irrigator is made of non-metallic material and designed as a tubular structure, mainly used for suctioning rinsing waste liquid. The tubular head at the contact point with the nasal cavity is designed as an arc. The outer tube of the nasal irrigator is made of metallic material and designed as a tubular structure, mainly used to provide support for the suction tube when suctioning rinsing waste liquid. The suction tube and the outer tube are tightly fitted together, and the suction tube, the outer tube, and the suction tube connector are connected by adhesive bonding.

[0015] The suction tube connector is equipped with two sets of T-joints. The first joint of the first set of T-joints is connected to the outer tube, the second joint of the first set of T-joints is connected to the suction connecting tube, and the third joint of the first set of T-joints is connected to the tube head sealing plug. The first joint and the second joint of the second set of T-joints are connected to the outer tube, and the third joint of the second set of T-joints passes through the suction tube connector to form a double-joint channel. The first set of T-joints in the first joint channel is connected to the suction tube and the suction connecting tube after being sealed by the tube head sealing plug. The second set of T-joints in the second joint channel is connected to the suction tube and the suction connecting tube after being sealed by pressing with a finger.

[0016] The connection between the suction tube connector and the flushing tube channel is equipped with a sealing ring fixing cover, and a sealing ring is installed inside the sealing ring fixing cover; the gripping part of the suction tube connector is decorated with a corrugated or grid pattern. The sealing ring fixing cover and the sealing ring are designed to allow the suction tube connector to slide smoothly without leakage.

[0017] The beneficial effects of this utility model are:

[0018] This nasal irrigator features simultaneous rinsing and suction, allowing for simultaneous nasal irrigation and aspiration. This significantly improves nasal irrigation comfort. The nasal irrigator's tubing is slim and can be bent at any angle, facilitating the irrigation of deep nasal and sinus cavities. The tubing has multiple irrigation holes, allowing for selection based on different clinical needs. The straight section of the tubing has irrigation holes for simultaneous irrigation of the entire nasal cavity, reducing irrigation time and pressure irritation. The tubing tip has irrigation holes to remove stubborn contaminants. Multiple irrigation holes in the straight section and tip of the tubing provide multi-point, multi-layered water output, further reducing irrigation time while ensuring a more thorough cleaning. The nasal irrigator also features a suction function to prevent secondary contamination from incomplete waste fluid disposal and to avoid choking caused by waste fluid accumulation during irrigation. The nasal irrigator suction tube connector has two structures, selected according to different clinical operation methods and surgical procedures. The first structure allows suction via pressing the suction switch channel with a finger, making it easier for doctors to observe the irrigation process and adjust the suction speed and timing. The second structure allows suction via pushing the connector, facilitating doctors who cannot adjust with their fingers, thus simplifying clinical operation. The nasal irrigator features a simple design and convenient operation. Its various parts are designed and assembled to better meet the needs of the market, patients, and different clinical procedures. Attached Figure Description

[0019] Figure 1 Schematic diagram of the nasal irrigation device in its rinsing state Figure I ;

[0020] Figure 2 Schematic diagram of the suction post structure of a nasal irrigation device Figure I ;

[0021] Figure 3 Schematic diagram of the nasal irrigation device in its rinsing state Figure II ;

[0022] Figure 4 Schematic diagram of the suction post structure of a nasal irrigation device Figure II ;

[0023] Figure 5 for Figure 1 A partially enlarged schematic diagram of the flushing tube, suction tube, and outer tube;

[0024] Figure 6 for Figure 1 A partially enlarged schematic diagram of the shell;

[0025] Figure 7 for Figure 1 A partially enlarged schematic diagram of the suction connection tube and the flushing connection tube;

[0026] Figure 8 for Figure 3 Enlarged schematic diagram of a portion of the middle shell;

[0027] Figure 9 This is a schematic diagram of the bending device structure;

[0028] Figure 10 Schematic diagram of the bend in the maxillary sinus irrigation tube;

[0029] Figure 11 A schematic diagram of the bend in the sphenoid sinus irrigation tube;

[0030] Figure 12 A schematic diagram of the bend in the frontal sinus irrigation tube;

[0031] Figure 13 Schematic diagram of the repositioning flushing tube bend;

[0032] Figure 14 This is a partially enlarged schematic diagram of the flushing hole in the flushing pipe;

[0033] Figure 15 This is a partially enlarged schematic diagram of the flushing hole at the head of the flushing tube;

[0034] In the diagram: 1. Flushing tube; 2. Suction tube; 3. Outer tube; 4. Stainless steel spring; 5. Suction tube connector; 6. Sealing plug; 7. Fixing seat; 8. Sealing ring; 9. Housing; 10. Suction connecting tube; 11. Flushing connecting tube; 12. Suction tube connector; 13. Flushing tube connector; 14. Tube head sealing plug; 15. Sealing ring fixing cover; 16. Bending device. Detailed Implementation

[0035] A nasal irrigation device includes an irrigation tube 1, a suction tube 2, an outer tube 3, a stainless steel spring 4, a suction tube connector 5, a sealing plug 6, a fixing seat 7, a sealing ring 8, a housing 9, a suction connecting tube 10, an irrigation connecting tube 11, a suction tube connector 12, and an irrigation tube connector 13.

[0036] The housing 9 is equipped with a flushing pipe 1, a sealing plug 6, and a suction pipe connector 5. One end of the flushing pipe 1 extends out of the housing 9, and the other end of the flushing pipe 1 is connected to the housing 9. An outer pipe 3 is fitted onto the flushing pipe 1 and slides along the flushing pipe 1. A suction pipe 2 is fitted onto one end of the outer pipe 3, and the other end of the outer pipe 3 is connected to the suction pipe connector 5. The outer pipe 3 is connected to the suction connecting pipe 10 through the suction pipe connector 5. The suction connecting pipe 10 is equipped with a suction pipe joint 12, which is connected to a negative pressure suction device.

[0037] The flushing pipe 1 is connected to the connection end of the housing 9 and the flushing connection pipe 11. The flushing connection pipe 11 has a flushing pipe connector 13, which is connected to the flushing water. The suction pipe connection seat 5 is connected to the housing 9 by a stainless steel spring 4. The stainless steel spring 4 is fitted on the outside of the outer pipe 3. The suction pipe connection seat 5 drives the outer pipe 3 to slide along the flushing pipe 1. A sealing plug 6 is fixed inside the housing 9. A three-way connector is provided on the suction pipe connection seat 5. The first connector of the three-way connector is connected to the outer pipe 3. The second connector of the three-way connector is connected to the suction connection pipe 10. The third connector of the three-way connector is connected to the atmosphere. The sliding of the suction pipe connection seat 5 drives the third connector of the three-way connector to fit and seal with the sealing plug 6. The first connector of the three-way connector is connected to the second connector. The suction pipe 2 forms a negative pressure suction channel to draw in the flushing water.

[0038] The housing 9 has a cavity inside, through which the outer tube 3, flushing tube 1, and suction tube 2 are connected. A circular hole is provided at one end of the housing 9, through which the flushing tube 1 and the outer tube 3 pass. A notch is provided on the housing 9, and a gripping part is provided on the suction tube connecting seat 5. The gripping part of the suction tube connecting seat 5 passes through the notch and extends out of the housing 9. One end of the stainless steel spring 4 is fixedly connected to the housing 9, and the other end of the stainless steel spring 4 is fixedly connected to the suction tube connecting seat 5. The stainless steel spring 4 applies pressure to press the suction tube connecting seat 5 tightly against the inner wall of the cavity. Two circular holes are provided at the other end of the housing, through which the suction connecting tube 10 and the flushing connecting tube 11 are connected. Anti-slip strips are provided on the outer wall of the housing 9.

[0039] The flushing pipe 1 is divided into a straight pipe section and a pipe head. The pipe head is located at the end of the straight pipe section and is spherical. The straight pipe section is provided with flushing holes near the pipe head. The number of flushing holes is 2 to 10. The flushing holes are distributed along the outer circumference of the flushing pipe. The angle S between the opening direction of the flushing hole and the axial direction of the flushing pipe is 10° to 90°.

[0040] The flushing holes are arranged in a matrix or spiral along the straight pipe section; the pipe head is provided with a flushing hole, and the angle S between the opening direction of the flushing hole and the axial direction of the flushing pipe is 10° to 90°.

[0041] The flushing tube 1 is made of 304 medical stainless steel, with a diameter of 1-2 mm and a length of 100-300 mm. The suction tube 2 is made of plastic, with a diameter of 1.3-3 mm and a length of 100-200 mm. A gap of 0.3-1 mm is left between the flushing tube 1 and the suction tube 2. The pressure range of the negative pressure suction device is -20 to -100 kPa.

[0042] The suction tube connector 5 is provided with a sealing ring fixing cover 15 at the connection between it and the flushing tube channel, and a sealing ring is provided inside the sealing ring fixing cover 15; the gripping part of the suction tube connector 5 is provided with a wavy or grid pattern.

[0043] It also includes a bending device 16, which has a reset groove and multiple sets of bending grooves. The reset groove is a straight tube groove. The bending angle of the bending groove is A, B, C, D or E. The angle range of A and B is 30-90°; the angle range of E is 70-100°; the angle range of C is 100-120°; the angle range of E is 120-140°; the angle of A < angle of B < angle of E < angle of C < angle of D; the bending groove has one bending angle A, B, C, D or E; or the bending groove has two sets of bending angles to form a combined bending groove.

[0044] As attached Figure 3-4 As shown, in another embodiment of the suction tube connector 5, the suction tube connector 5 is provided with two sets of T-joints. The first joint of the first set of T-joints is connected to the outer tube 3, the second joint of the first set of T-joints is connected to the suction connecting tube 10, and the third joint of the first set of T-joints is connected to the tube head sealing plug 14. The first joint and the second joint of the second set of T-joints are connected to the outer tube 3, and the third joint of the second set of T-joints passes through the suction tube connector 5 to form a double-joint channel. The first set of T-joints in the first joint channel is connected to the suction tube 2 and the suction connecting tube 10 after being sealed by the tube head sealing plug 14. The second set of T-joints in the second joint channel is connected to the suction tube 2 and the suction connecting tube 10 after being sealed by pressing with a finger.

[0045] A method for using a nasal irrigation device includes the following steps:

[0046] S1, Piping Assembly

[0047] The suction connecting pipe 10 is equipped with a suction pipe connector 12, which is connected to a negative pressure suction device; the flushing pipe 1 is connected to the flushing connecting pipe 11, and the flushing connecting pipe 11 is equipped with a flushing pipe connector 13, which is connected to the flushing water.

[0048] S2. Adjust the bending angle

[0049] One end of the flushing pipe 1 is bent by the bending groove of the bending device, and the flushing pipe 1 is aligned with the bending groove to change the bending angle.

[0050] S3, Synchronous flushing and suction

[0051] Flushing water is introduced through flushing pipe joint 13, and the pipeline is connected for suction by blocking the first set of tee joints or the second set of tee joints; waste liquid is also suctioned during flushing.

[0052] S4, Bending and Resetting

[0053] The bent end of the flushing pipe 1 is reset through the reset groove of the bender.

[0054] In S3, the extension distance of the suction tube 2 is adjusted by sliding the suction tube connector 5.

[0055] The specific technical requirements for the structure are as follows:

[0056] The nasal irrigator housing has a circular hole on one side for fixing and passing the outer tube, irrigation tube, and suction tube, and a slot to block the stainless steel spring from generating thrust. The other side has two circular holes for fixing and passing the suction connecting tube and irrigation connecting tube. A rectangular slot is opened at the upper middle part for the suction tube connecting seat to slide back and forth. An anti-slip groove is provided at the lower middle part. The interior is designed according to the dimensions of the fixing seat and suction tube connecting seat, and has a fixing slot to ensure that the fixing seat and suction tube connecting seat are stable and do not move after installation.

[0057] The nasal irrigator housing has a circular hole on one side for fixing and passing the outer tube, irrigation tube, and suction tube, and a slot to block the stainless steel spring from generating thrust. The other side has two circular holes for fixing and passing the suction connecting tube and irrigation connecting tube. A rectangular slot is located at the upper center for the suction tube connecting seat to slide back and forth. An anti-slip groove is located at the lower center. The interior is designed according to the dimensions of the fixing seat and suction tube connecting seat, with a fixing slot to ensure stability after installation. An internal sealing plug for the suction tube connecting seat 2 is designed to slide the suction tube connecting seat, bringing the suction channel into contact with the sealing plug, thus blocking the suction channel and achieving the suction function.

[0058] The nasal irrigator's flushing tube is made of metal or non-metal materials. The flushing tube head is designed to be spherical or ellipsoidal. The nasal irrigator's suction tube is made of non-metallic materials and designed as a tubular structure, primarily used for suctioning waste flushing fluid. The tubular head at the contact point with the nasal cavity is designed as an arc. The nasal irrigator's outer tube is made of metal and designed as a tubular structure, primarily used to provide support for the suction tube when suctioning waste flushing fluid. The suction tube and outer tube are tightly fitted together, and the suction tube, outer tube, and suction tube connector are connected by adhesive bonding.

[0059] The nasal irrigator's suction tube connector is made of non-metallic material and is L-shaped, with one end being a single channel and the other end being a double channel and a suction switch channel. The single channel end connects to the suction tube and outer tube and extends out of the irrigation tube. One of the double channels is the suction channel, which features a dumbbell-shaped piston mechanism with a sealing groove in the middle. The suction switch channel is designed to contact the user's fingers, with a mesh-like, horizontal anti-slip protrusion perpendicular to the direction of movement. Its function is to seal when pressed down, allowing the user to contact the finger. By adjusting the sealing position of the suction switch channel, the suction pressure and rate can be adjusted. A complete seal maximizes the suction pressure and speed, while a loose seal reduces it. Through hand dexterity and tactile perception, the suction rate and pressure can be quickly and effectively adjusted to achieve the suction function.

[0060] The nasal irrigator suction tube connector is made of non-metallic material and is L-shaped, with one end being a single channel and the other end being a double channel and a suction switch channel. The single channel connects to the suction tube and outer tube, and extends out of the irrigating tube. One of the double channels is the suction channel, which features a dumbbell-shaped piston mechanism with a sealing groove in the middle for installing a sealing gasket. The other double channel is the irrigating tube channel. To ensure the suction tube connector slides smoothly without leakage, a built-in sealing ring is installed in the irrigating tube channel, which is fixed to the suction tube connector using a U-shaped snap-fit ​​groove. The suction switch channel is perpendicular to the suction tube. Sliding the suction tube connector brings the suction switch channel into contact with the housing sealing plug, closing the suction channel and enabling suction. The contact area of ​​the sliding rod has mesh-like, horizontal anti-slip protrusions perpendicular to the direction of movement, increasing friction for human fingers.

[0061] The nasal irrigator mounting base is made of non-metallic material and is designed with two channels. One side mates with the suction tube connector. One channel is designed to cooperate with the suction channel's dumbbell-shaped piston mechanism, mainly to allow the suction tube connector to move back and forth while also providing a sealing function. It is the same as the suction tube connector on the other side. The other channel mainly fixes the irrigation tube and is designed with a dotted adhesive port for easy bonding during assembly. This channel is the same as the irrigation tube connector on the other side. The other side has two connectors: a suction tube connector and an irrigation tube connector.

[0062] The nasal irrigator's suction connecting tube is made of non-metallic material. Its tubing design ensures it won't deform during suction and provides some resistance to pressure deformation. It's primarily used to connect to negative pressure devices for suction. The nasal irrigator's flushing connecting tube is also made of non-metallic material. Its tubing design ensures it won't deform during flushing and provides some resistance to pressure. It's primarily used to connect to positive pressure devices for flushing. The nasal irrigator's suction tube connector is made of non-metallic material, featuring a pagoda-shaped stepped design and a through-hole design in the middle. One end has a tapered connector for connecting to the suction connecting tube, while the other end has a pagoda design for connecting to negative pressure devices. The pagoda-shaped stepped design facilitates compatibility with negative pressure devices of different sizes. Connection port; the nasal irrigator flushing tube connector is made of non-metallic material, with an airfoil design and a through-hole design. One end has a tapered connector for connecting to the flushing tube, and the other end has a Luer connector for connecting to a positive pressure device to achieve pressurized flushing. The airfoil design is symmetrical along the axis of the through-hole for easy gripping and connection. The bending device consists of a bending device body, a bending device cap, etc., and is made of non-metallic material. The body has bending grooves of various angles and shapes to provide bending angles for the flushing tube, adapting to the differences in the nasal cavity of different people, thereby meeting the flushing requirements. The bending device cap cooperates with the body and its function is to compress the flushing tube, making it easy to bend and deform.

[0063] The housing 9 contains a flushing pipe 1, a sealing plug 6, and a suction pipe connector 5. The flushing pipe 1 extends out of the housing 9. An outer pipe 3 is fitted onto the flushing pipe 1 and slides along the flushing pipe 1. A suction pipe 2 is fitted onto one end of the outer pipe 3, and a suction pipe connector 5 is provided at the other end of the outer pipe 3. The suction pipe connector 5 is connected to a suction connecting pipe 10. A suction pipe joint 12 is provided on the suction connecting pipe 10 and is connected to a negative pressure suction device. The flushing pipe 1 is connected to a flushing connecting pipe 11. A flushing pipe joint 13 is provided on the flushing connecting pipe 11 and is connected to flushing water. The suction pipe connector 5 is also provided. 5 is connected to the outer casing 9 via a stainless steel spring 4, which is fitted onto the outside of the outer tube 3. The casing 9 contains a fixed connecting sealing plug 6. The suction tube connecting seat 5 drives the outer tube 3 to slide along the washing tube 1. The suction tube connecting seat 5 has a three-way connector; the first connector of the three-way connector is connected to the outer tube 3, the second connector is connected to the suction connecting tube 10, and the third connector is connected to the atmosphere. The sliding of the suction tube connecting seat 5 causes the third connector of the three-way connector to fit and seal against the sealing plug 6. The first and second connectors of the three-way connector are connected. The suction tube 2 uses negative pressure to draw out the rinsing water. An internal sealing plug is designed for the suction tube connecting seat 2. Sliding the suction tube connecting seat 2 causes the suction channel to contact the sealing plug, blocking the suction channel and achieving the suction function. One end of the single-channel is connected to the suction tube and the outer tube and extends out of the flushing tube. One of the dual-channel channels is the suction channel. The suction channel is designed with a dumbbell-shaped piston mechanism, and a sealing groove is designed in the middle of the dumbbell mechanism. The suction switch channel is designed to contact the human finger. The surface is set with mesh and horizontal anti-slip protrusions perpendicular to the direction of movement. The suction switch channel is located in the middle. Its function is to be in contact with the human finger and to seal when pressed down.

[0064] One end of the housing 9 has a circular hole through which the outer tube and the flushing tube pass. A cavity is formed inside the housing 9 to fix the outer tube, the flushing tube, and the suction tube. A stainless steel spring is installed in the cavity to reset the suction tube connector 5. Two circular holes are provided on the other side of the housing for fixing and passing the suction connector 10 and the flushing connector 11. A rectangular slot is opened at the upper middle part for the suction tube connector to slide back and forth. An anti-slip groove is provided at the lower middle part. The interior is designed according to the dimensions of the fixing seat and the suction tube connector, and a fixing slot is designed to make the fixing seat and the suction tube connector stable and not move after installation.

[0065] The flushing pipe consists of a straight section and a pipe head. The pipe head is spherical and located at the end of the straight section. Near the pipe head, the straight section has 2 to 10 flushing holes, distributed circumferentially along the outer edge of the flushing pipe. The angle between the opening direction of the flushing holes and the axial direction of the flushing pipe is 10° to 90°. The flushing holes can be arranged in a matrix or spiral pattern. The main purpose is multi-directional flushing, improving the flushing effect and reducing flushing time.

[0066] The rinsing tube is made of 304 medical-grade stainless steel, and the suction tube is made of plastic. The rinsing tube has a diameter of 1-2 mm and a length of 100-300 mm, while the suction tube has a diameter of 1.3-3 mm and a length of 100-200 mm. The assembly gap between the rinsing tube and the suction tube is 0.3-1 mm. The pressure range of the negative pressure suction device is -20 to -100 kPa. The nasal irrigator suction tube is made of non-metallic material and designed as a tubular structure, mainly used for suctioning rinsing waste liquid. The tubular head in contact with the nasal cavity is designed as an arc shape. The nasal irrigator outer tube is made of metallic material and designed as a tubular structure, mainly used to provide support for the suction tube when suctioning rinsing waste liquid. The suction tube and the outer tube are tightly fitted together, and the suction tube, the outer tube, and the suction tube connector are connected by adhesive bonding.

[0067] The suction tube connector 5 is provided with two sets of T-connectors. The first connector of the first set of T-connectors is connected to the outer tube 3, the second connector of the first set of T-connectors is connected to the suction connecting tube 10, and the third connector of the first set of T-connectors is connected to the tube head sealing plug 14. The first and second connectors of the second set of T-connectors are connected to the outer tube 3, and the third connector of the second set of T-connectors passes through the suction tube connector 5 to form a double connector channel. The first set of T-connectors in the first connector channel is connected to the suction tube 2 and the suction connecting tube 10 after being sealed by the tube head sealing plug 14. The second set of T-connectors in the second connector channel is connected to the suction tube 2 and the suction connecting tube 10 after being sealed by pressing with a finger.

[0068] The connection between the suction tube connector 5 and the flushing tube channel is provided with a sealing ring fixing cover 15, and a sealing ring is provided inside the sealing ring fixing cover 15. In order to allow the suction tube connector to slide without leakage, the suction tube connector 5 is also provided with a corrugated or grid pattern.

[0069] It also includes a bending device 16, which has a reset groove and multiple sets of bending grooves. The reset groove is a straight tube groove. The flushing tube is inserted into the reset groove or bending groove along the tube head. The flushing tube is bent at an angle through the bending groove and reset through the reset groove. After the bending groove is bent, it is easy to fit with the maxillary sinus, mandibular sinus, frontal sinus, sphenoid sinus, and nasal cavity. Figures 10 to 13Irrigation diagrams are provided for the maxillary sinus, sphenoid sinus, frontal sinus, and repositioning. Furthermore, this application also allows for bending of the irrigation tube 1 without the bending tool 16; bending can be achieved manually or with forceps. Using the bending tool 16 allows for more precise bending, achieving biomimetic fit to the maxillary sinus, sphenoid sinus, or frontal sinus.

[0070] The nasal irrigator suction tube connector is made of non-metallic material and is L-shaped, with one end being a single channel and the other end being a double channel and a suction switch channel. The single channel connects to the suction tube and outer tube and extends out through the irrigating tube. One of the double channels is the suction channel, featuring a dumbbell-shaped piston mechanism with a sealing groove in the middle for installing a sealing gasket. The other double channel is the irrigating tube channel. The suction switch channel is perpendicular to the suction tube; sliding the suction tube connector causes the suction switch channel to contact the housing sealing plug, closing the suction channel and enabling suction. The sliding rod contact area is wavy or L-shaped, with mesh-like, horizontal anti-slip protrusions perpendicular to the direction of movement to increase friction for human fingers. The nasal irrigator mounting base is made of non-metallic material and designed with two channels. One channel mates with the suction tube connector. One channel is designed to work with a dumbbell-shaped piston mechanism in the suction channel, primarily allowing the suction tube connector to move back and forth while also providing a sealing function. This is the same as the suction tube connector on the other channel. The other channel mainly secures the irrigating tube and has a dotted adhesive port for easy bonding during assembly. This channel is the same as the irrigating tube connector on the other side. The other side has two connectors: a suction tube connector and an irrigating tube connector. The nasal irrigator suction tube is made of non-metallic material and features a pipe design that prevents deformation during suction and provides some resistance to pressure deformation. It is mainly used to connect to negative pressure equipment for suction. The nasal irrigator irrigating tube is made of non-metallic material and features a pipe design that prevents deformation during irrigation and provides some resistance to pressure. It is mainly used to connect to positive pressure equipment for irrigation. The nasal irrigator suction... The tube connector is made of non-metallic material, featuring a pagoda-shaped stepped design and a through-hole design in the middle. One end has a tapered connector for connecting to the suction tube, while the other end has a pagoda design for connecting to negative pressure equipment. The pagoda-shaped stepped design facilitates compatibility with different sized negative pressure equipment ports. The nasal irrigator tube connector is also made of non-metallic material, featuring an airfoil design and a through-hole design. One end has a tapered connector for connecting to the irrigating tube, while the other end has a Luer connector for connecting to positive pressure equipment for pressurized irrigation. The airfoil design is symmetrical along the through-hole axis for easy gripping and connection. The bending device consists of a bending device body and a bending device cap, all made of non-metallic material. The body has bending grooves of various angles and shapes to provide bending angles for the irrigating tube, adapting to the differences in nasal cavity interiors of different individuals to meet irrigation requirements. The bending device cap cooperates with the body to compress the irrigating tube, making it easy to bend and deform.

[0071] The applicant should describe this section in as much detail as possible. For pharmaceutical patents, this mainly includes the following:

[0072] The nasal irrigator includes a bending device and an aspirator. The aspirator consists of an irrigation tube, a suction tube, an outer tube, a stainless steel spring, a suction tube connector, a sealing plug, a fixing seat, a sealing ring, a housing, a suction connecting tube, an irrigation connecting tube, a suction tube connector, and an irrigation tube connector. The bending device consists of a bending device body and a bending device cap.

[0073] The nasal irrigator housing is designed for comfortable gripping. Its structure includes a circular hole on one side for securing and allowing the outer tube, irrigation tube, and suction tube to pass through, and a slot to prevent the stainless steel spring from generating thrust. The other side has two circular holes for securing and allowing the suction and irrigation tubes to pass through. A rectangular slot is located at the upper center for the suction tube connector to slide back and forth. An anti-slip groove is provided at the lower center. The interior is designed according to the dimensions of the mounting base and suction tube connector, and includes a securing slot to ensure that the mounting base and suction tube connector are stable and do not move after installation.

[0074] The nasal irrigator housing is designed for comfortable gripping. Its structure includes a circular hole on one side for fixing and passing the outer tube, irrigation tube, and suction tube, and a slot to block the stainless steel spring from generating thrust. The other side has two circular holes for fixing and passing the suction and irrigation connecting tubes. A rectangular slot is located at the upper center for the suction tube connector to slide back and forth. An anti-slip groove is located at the lower center. The interior is designed according to the dimensions of the fixing and suction tube connectors, with a fixing slot to ensure stability after installation. An internal sealing plug for the suction tube connector 2 is designed to slide the connector, bringing the suction channel into contact with the sealing plug and blocking it, thus achieving the suction function.

[0075] The nasal irrigator tube is made of metal or non-metal materials and is mainly used for water flow and distribution during rinsing, and can withstand a certain pressure. The head of the irrigator tube is designed to be spherical or ellipsoidal to avoid scraping tissues and causing discomfort to the patient when cleaning deep into the nasal cavity and sinuses. The straight section of the irrigator tube, near the spherical part, has irrigation holes. The opening direction of the irrigation holes is at an angle S of 10° to 90° with the axis of the irrigator tube. There are 2 to 10 holes distributed around the circumference of the irrigator tube and 1 to 6 rows distributed along the axis of the irrigator tube. The arrangement of the irrigation holes can be matrix arrangement or spiral arrangement.

[0076] The second design of the nasal irrigator tube is made of metal or non-metal materials. The tube head has an irrigation hole, which is mainly used to guide the water flow and achieve the irrigation effect. The angle S between the opening direction of the irrigation hole and the axis of the irrigation tube is 10° to 90°. It is mainly used for water flow and distribution during irrigation and can withstand a certain pressure. The irrigation tube head is designed to be spherical or ellipsoidal to avoid scraping tissues and causing discomfort to the patient when cleaning deep into the nasal cavity and sinuses.

[0077] The third design of the nasal irrigator irrigation tube combines the first and second designs mentioned above. Its main purpose is to provide multi-directional irrigation, improve the irrigation effect, and reduce irrigation time.

[0078] The nasal irrigator suction tube is made of non-metallic material and designed as a tubular structure. It is mainly used to suction out rinsing waste liquid. The part of the tube that contacts the nasal cavity is designed with an arc shape. The purpose of this design is to avoid scraping the nasal tissue when suctioning out rinsing waste liquid.

[0079] The outer tube of the nasal irrigator is made of metal and designed as a tubular structure. It is mainly used to provide support for the suction tube when suctioning up the rinsing waste liquid. The suction tube and the outer tube are tightly fitted together, and the suction tube, the outer tube and the suction tube connector are connected by adhesive.

[0080] The nasal irrigator's suction tube connector is made of non-metallic material and is L-shaped, with one end being a single channel and the other end being a double channel and a suction switch channel. The single channel connects to the suction tube and outer tube, and extends out through the irrigation tube. One of the double channels is the suction channel, featuring a dumbbell-shaped piston mechanism with a sealing groove in the middle for installing a sealing gasket. The other double channel is the irrigation tube channel. To ensure the suction tube connector slides smoothly and without leakage, a built-in sealing ring is installed in the irrigation tube channel, secured to the suction tube connector with a U-shaped snap-fit ​​groove. The suction switch channel is designed to contact the user's fingers, with a mesh-like, horizontal anti-slip protrusion perpendicular to the direction of movement. The central part of the channel acts as a suction switch; when pressed down, it seals and activates the suction function; releasing the seal deactivates the suction function.

[0081] The second design of the nasal irrigator suction tube connector is made of non-metallic material and is L-shaped. One end is a single channel, and the other end is a double channel and a suction switch channel. The single channel connects to the suction tube and outer tube and extends out of the irrigation tube. One of the double channels is the suction channel, which features a dumbbell-shaped piston mechanism with a sealing groove in the middle for installing a sealing gasket. The other double channel is the irrigation tube channel. To ensure the suction tube connector slides smoothly without leakage, a built-in sealing ring is installed in the irrigation tube channel, which is fixed to the suction tube connector using a U-shaped snap-fit ​​groove. The suction switch channel is designed with its surface perpendicular to the suction tube. Sliding the suction tube connector brings the suction switch channel into contact with the sealing plug on the housing, closing the suction tube and enabling the suction function. The contact area of ​​the sliding rod is designed with a wave-like or L-shaped shape, and the surface has mesh-like, horizontal anti-slip protrusions perpendicular to the direction of movement to increase friction for human fingers.

[0082] The nasal irrigator holder is made of non-metallic material and is designed with two channels. One channel mates with the suction tube connector. One channel is designed to work with the dumbbell-shaped piston mechanism of the suction channel, mainly to allow the suction tube connector to move back and forth while also providing a sealing function. It is the same as the suction tube connector on the other channel. The other channel mainly fixes the irrigation tube and is designed with a dotted adhesive port for easy bonding during assembly. This channel is the same as the irrigation tube connector on the other side. The other side has two connectors: one for the suction tube and one for the irrigation tube.

[0083] The nasal irrigator suction connecting tube is made of non-metallic material. The tube design ensures that it does not deform during suction and has a certain degree of resistance to pressure deformation. It is mainly used to connect to negative pressure equipment to achieve the suction function.

[0084] The nasal irrigator flushing connector is made of non-metallic materials. Its pipe design ensures that it will not deform during flushing and has a certain degree of pressure resistance. It is mainly used to connect to positive pressure equipment to achieve the flushing function.

[0085] The nasal irrigator suction tube connector is made of non-metallic material, with a pagoda-shaped stepped design and a through-hole design in the middle. One end has a tapered connector, mainly used to connect to the suction tube, while the other end has a pagoda design to connect to the negative pressure device. The pagoda-shaped stepped design is mainly to facilitate matching with the connection ports of negative pressure devices of different sizes.

[0086] The nasal irrigator flushing tube connector is made of non-metallic material, with an airfoil design and a through-hole design. One end has a tapered connector for connecting to the flushing tube, and the other end has a Luer connector for connecting to positive pressure equipment to achieve pressurized flushing. The airfoil design is symmetrical along the through-hole axis, mainly for easy gripping and connection.

[0087] The bending device consists of a bending device body and a bending device cap, etc. It is made of non-metallic materials. The body has bending grooves with 1 to 10 different design angles and shapes to provide bending angles for the irrigation tube, adapting to the differences in the nasal cavity of different people, thereby meeting the irrigation requirements. The bending device cap cooperates with the body and its function is to press the irrigation tube to make it easy to bend and deform.

[0088] The nasal irrigation device consists of, from left to right, an irrigation tube, a suction tube, an outer tube, a shell, a spring, a suction tube connector, a sealing ring, a sealing ring retaining cap, a retaining base, a suction connecting tube, an irrigation connecting tube, an irrigation tube connector, and a suction tube connector. The outer tube, irrigation tube, and spring are made of metal; the left and right shells are made of non-metallic materials; the suction tube, suction connecting tube, and irrigation connecting tube are made of medical-grade non-metallic materials; and the sealing ring is made of methyl vinyl silicone rubber, a non-metallic material.

[0089] Manufacturing method: The outer tube is fixed to the suction tube connector by adhesive bonding. The suction tube is placed outside the outer tube, and a spring is fitted on the outside of the suction tube, with one end tightly attached to the left side of the suction tube connector. The sealing ring is fixed in the groove of the suction tube connector and in the countersunk hole of the suction tube connector. The sealing ring fixing cap is fastened to the suction tube connector by a snap-fit. The flushing tube passes through the suction tube connector and is fixed to the fixing seat by adhesive bonding. The suction tube connector is inserted into the fixing seat along the flushing tube. The assembled parts are placed in the left shell, and the right shell is fastened to complete the assembly of the nasal irrigator.

[0090] The nasal irrigator's irrigation tube is flexible. The tube can be bent at different angles to accommodate different patient nasal cavity structures, and its design is tailored to fit the nasal cavity structure, allowing for better delivery of the cleaning solution deep into the nasal cavity. The nasal irrigator's suction tube connector allows for suction by pressing the suction switch channel with a finger, making it easier for doctors to observe the irrigation process. The suction speed and timing can be adjusted by finger manipulation, and the suction function is activated by pushing the suction tube connector, facilitating clinical operation for doctors who cannot use their fingers. It also allows for effective recovery of irrigation waste.

Claims

1. A nasal irrigation device, characterized in that... Includes flushing tube (1), suction tube (2), outer tube (3), stainless steel spring (4), suction tube connector (5), sealing plug (6), fixing seat (7), sealing ring (8), housing (9), suction connecting tube (10), flushing connecting tube (11), suction tube connector (12) and flushing tube connector (13). The shell (9) is provided with a flushing pipe (1), a sealing plug (6) and a suction pipe connector (5). One end of the flushing pipe (1) extends out of the shell (9) and the other end of the flushing pipe (1) is connected to the shell (9). An outer pipe (3) is fitted on the flushing pipe (1). The outer pipe (3) slides along the flushing pipe (1). One end of the outer pipe (3) is fitted with a suction pipe (2), and the other end of the outer pipe (3) is connected to the suction pipe connector (5). The outer pipe (3) is connected to the suction connecting pipe (10) through the suction pipe connector (5). The suction connecting pipe (10) is provided with a suction pipe joint (12), and the suction pipe joint (12) is connected to a negative pressure suction device. The flushing pipe (1) is connected to the connection end of the shell (9) and the flushing connection pipe (11). The flushing connection pipe (11) has a flushing pipe connector (13) and the flushing pipe connector (13) is connected to the flushing water. The suction pipe connector (5) is connected to the shell (9) through a stainless steel spring (4). The stainless steel spring (4) is fitted on the outside of the outer tube (3). The suction pipe connector (5) drives the outer tube (3) to slide along the flushing pipe (1). The shell (9) is fixedly provided with a sealing plug (6). The suction pipe connector (5) is provided with a three-way connector. The first connector of the three-way connector is connected to the outer tube (3). The second connector of the three-way connector is connected to the suction connection pipe (10). The third connector of the three-way connector is connected to the atmosphere. The suction pipe connector (5) slides and drives the third connector of the three-way connector to fit and seal with the sealing plug (6). The first connector of the three-way connector is connected to the second connector. The suction pipe (2) forms a negative pressure suction channel to draw the flushing water.

2. The nasal irrigation device according to claim 1, characterized in that... The housing (9) has a cavity inside, and the cavity is connected to the outer tube (3), the flushing tube (1) and the suction tube (2); a circular hole is provided at one end of the housing (9), and the flushing tube (1) and the outer tube (3) pass through the circular hole; a notch is provided on the housing (9), and a gripping part is provided on the suction tube connecting seat (5); the gripping part of the suction tube connecting seat (5) passes through the notch and out of the housing (9); one end of the stainless steel spring (4) is fixedly connected to the housing (9), and the other end of the stainless steel spring (4) is fixedly connected to the suction tube connecting seat (5). The stainless steel spring (4) applies pressure to press the suction tube connecting seat (5) tightly against the inner wall of the cavity; two circular holes are provided at the other end of the housing, and the suction connecting tube (10) and the flushing connecting tube (11) are connected to the two circular holes; anti-slip strips are provided on the outer wall of the housing (9).

3. The nasal irrigation device according to claim 1, characterized in that... The flushing pipe (1) is divided into a straight pipe section and a pipe head. The pipe head is located at the end of the straight pipe section. The pipe head is spherical. The straight pipe section is provided with flushing holes near the pipe head. There are 2 to 10 flushing holes. The flushing holes are distributed around the outer edge of the flushing pipe. The angle S between the opening direction of the flushing hole and the axial direction of the flushing pipe is 10° to 90°.

4. The nasal irrigation device according to claim 3, characterized in that... The flushing holes are arranged in a matrix or spiral along the straight pipe section; the pipe head is provided with a flushing hole, and the angle S between the opening direction of the flushing hole and the axial direction of the flushing pipe is 10° to 90°.

5. A nasal irrigation device according to claim 1, characterized in that... The flushing tube (1) is made of 304 medical stainless steel, with a diameter of 1-2 mm and a length of 100-300 mm. The suction tube (2) is made of plastic, with a diameter of 1.3-3 mm and a length of 100-200 mm. The flushing tube (1) and suction tube (2) are fitted together with a gap of 0.3-1 mm. The pressure range of the negative pressure suction device is -20 to -100 kPa.

6. A nasal irrigation device according to claim 1, characterized in that... The suction tube connector (5) is provided with two sets of three-way connectors. The first connector of the first set of three-way connectors is connected to the outer tube (3), the second connector of the first set of three-way connectors is connected to the suction connecting tube (10), and the third connector of the first set of three-way connectors is connected to the tube head sealing plug (14). The first and second connectors of the second set of three-way connectors are connected to the outer tube (3), and the third connector of the second set of three-way connectors passes through the suction tube connector (5) to form a double connector channel. The first set of three-way connectors of the first connector channel is connected to the suction tube (2) and the suction connecting tube (10) after being sealed by the tube head sealing plug (14). The second set of three-way connectors of the second connector channel is connected to the suction tube (2) and the suction connecting tube (10) after being sealed by pressing with a finger.

7. A nasal irrigation device according to claim 1, characterized in that... The suction tube connector (5) is provided with a sealing ring fixing cover (15) at the connection between the suction tube connector (5) and the flushing tube channel, and a sealing ring is provided inside the sealing ring fixing cover (15); the gripping part of the suction tube connector (5) is provided with a wave pattern or a grid pattern.

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