Maxillary sinus natural opening exploration and expansion kit

Abstract

The present invention relates to the field of medical devices, specifically a maxillary sinus natural opening exploration and expansion kit. Currently, nasal endoscopic surgery is used to treat sinusitis and other diseases, and the uncinate process is usually removed to achieve the patency of the maxillary sinus natural opening, which has many impacts on the patient's postoperative recovery, nasal cavity and sinus function, etc. The technical solution of the present invention includes a probe and expander and an aspirator combination of a curved rod and a curved tube structure. The structural design conforms to the overall spatial structure of the human nasal cavity, maxillary sinus, and sinus orifice and nasal meatus complex. For most patients in clinical practice, this device can avoid the interference of nasal cavity structures such as the front end of the middle turbinate on the treatment operation, and achieve the exploration and expansion of the maxillary sinus natural opening while retaining the uncinate process, and use the aspirator to flush and administer medicine to the maxillary sinus cavity. The patient does not need to be hospitalized for surgery, which avoids the impact of surgical treatment on the patient's future life, greatly reduces the pain and damage during the treatment process, and alleviates the economic and psychological burden of the patient, which is in line with the concept of minimally invasive surgery.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, in particular to a maxillary sinus natural ostium exploration and expansion kit. Background Art

[0002] With the increasing popularity of endoscopic sinus surgery, it is being used to treat patients with sinusitis and nasal polyps. Due to the complex anatomy of the human nasal passages, where the natural ostium of the maxillary sinus is hidden at the base of the semilunar fissure and faces posteriorly and superiorly, conventional surgical instruments cannot circumvent the uncinate process to access the natural ostium. Therefore, surgeons often perform uncinate resection, a procedure that has become almost a standard procedure in endoscopic sinus surgery. While uncinate resection opens the natural ostium, the resulting bone exposure significantly impacts postoperative wound healing. It also increases the time and frequency of postoperative dressing changes and irrigations, prolonging the healing process and potentially causing adhesions in the surgical cavity. This can cause pain, financial burden, and psychological stress for patients. Uncinate resection is not consistent with the minimally invasive concept of functional endoscopic sinus surgery. Furthermore, modern clinical studies have demonstrated that uncinate resection significantly impacts sinus air flow and mucociliary function, secretion drainage, and other functions.

[0003] According to clinical probability statistics, maxillary sinusitis accounts for 80% of the incidence of sinusitis. Inflammation or obstruction (middle meatus polyps, uncinate process hypertrophy, etc.) is mostly caused by lesions leading to obstruction of the middle meatus in the nasal cavity, poor ventilation and drainage of the maxillary sinus, secretion retention, secondary infection, and inflammatory swelling, stenosis, and even adhesion of the natural opening of the maxillary sinus. In such cases, after clearing the lesions, the treatment purpose can be achieved by flushing and administering drugs to the maxillary sinus cavity; however, due to the unreasonable structural design of existing maxillary sinus aspirators, it is almost impossible to insert them smoothly into the maxillary sinus cavity without removing the uncinate process. Forcible insertion will damage, compress, or even fracture the body of the uncinate process, aggravate the stenosis of the semilunar fissure, narrow the natural opening of the maxillary sinus, and most of the time pierce the posterior fontanelle membrane; forced exploration of the sinus opening greatly increases the risk of damaging the orbital cardboard entering the orbit, and may even cause the mucosa of the maxillary sinus opening to peel off, resulting in more severe sinus opening stenosis; therefore, the key to treatment with uncinate process preservation lies in the probing technology of the natural opening of the maxillary sinus. Summary of the Invention

[0004] In response to the above problems, the present invention provides a maxillary sinus natural opening exploration and expansion kit. The instrument structure design conforms to the overall spatial structure of the nasal cavity, maxillary sinus, and sinus orifice and nasal meatus complex, which solves the problem of probing the maxillary sinus natural opening while retaining the uncinate process, and performs maxillary sinus cavity irrigation and medication treatment, greatly reducing the patient's pain, avoiding unnecessary physical damage, and conforming to the concept of minimally invasive treatment.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A maxillary sinus natural opening exploration and expansion kit comprising an exploration and expansion device and an irrigation and suction device;

[0007] The probe expander includes a probe rod, a probe head, and a handle; the probe rod includes a straight rod, a rear neck rod extending from the front end of the straight rod, and a front neck rod extending from the front end of the rear neck rod; the front neck rod and the rear neck rod are connected at an acute angle to form a V-shaped neck rod;

[0008] The probe is connected to the front end of the front neck rod, and the connection between the probe, the front neck rod, the back neck rod and the straight rod is smoothly transitioned; the end of the straight rod is connected to the handle;

[0009] The spatial position relationship of the curved rod structure of the probe and expander is:

[0010] The straight rod is arranged along the horizontal plane; the plane where the V-shaped neck rod is located forms an acute angle with the axis of the straight rod, and the main body of the V-shaped neck rod is located below the horizontal plane where the axis of the straight rod is located, and the angle opening of the front and rear neck rods is facing the side and rear of the straight rod;

[0011] The probe is bent downward at an obtuse angle to the front neck rod, and the plane where the axis of the probe and the axis of the front neck rod lie is perpendicular to the plane where the V-shaped neck rod lies; the distance from the connecting end of the front and rear neck rods to the free end of the probe is greater than or equal to the length of the rear neck rod;

[0012] The flushing and suction device includes a straight tube, a rear neck tube extending from the front end of the straight tube, a front neck tube extending from the front end of the rear neck tube, and a head tube extending from the front end of the front neck tube. The front neck tube and the rear neck tube are connected at an acute angle to form a V-shaped neck tube; the connection between the head tube, the front and rear neck tubes, and the straight tube is smoothly transitioned; the end of the straight tube is equipped with a handle, which is connected to the liquid tube interface connected to the end of the handle;

[0013] The spatial position relationship of each section of the pipe body of the flushing and aspirating device is as follows:

[0014] The straight conduit is arranged along a horizontal plane; the plane where the V-shaped neck tube is located forms an acute angle with the axis of the straight conduit, and the main body of the V-shaped neck tube is located below the horizontal plane where the axis of the straight conduit is located, and the angle formed by the front and rear neck tubes opens toward the side and rear of the straight conduit;

[0015] The head tube and the front neck tube are connected at an obtuse angle and bent downward, and the plane where the axis of the head tube and the axis of the front neck tube are located is perpendicular to the plane where the V-shaped neck tube is located; the distance from the connecting end of the front and rear neck tubes to the free end of the head tube is greater than or equal to the length of the rear neck tube.

[0016] Furthermore, the plane where the V-shaped neck rod is located and the axis of the straight rod are at an angle of 5° to 30°; the angle between the front neck rod and the rear neck rod of the V-shaped neck rod is 30°; the projection of the axis of the front neck rod in the horizontal plane is at an angle of 40° to 70° with the axis of the straight rod.

[0017] Furthermore, the length of the rear neck rod is 7 to 9 mm, the length of the probe is 5 mm, and the distance from the connecting end of the front neck rod and the rear neck rod to the free end of the probe is 9 to 15 mm.

[0018] Furthermore, the angle between the probe and the front neck bar is 165° to 170°.

[0019] Furthermore, a push block is provided at the free end of the probe, the front end of the push block is duck-beak-shaped, the middle part is convex outward, and the rear end is smoothly transitioned to the probe body or the front neck rod in a saddle-shaped arc. The maximum diameter of the push block is 1.5 to 3 mm.

[0020] Furthermore, the plane where the V-shaped neck tube is located is at an angle of 5° to 30° with the straight tube; the angle between the front and rear neck tubes of the V-shaped neck tube is 30°; the projection of the axis of the front neck tube in the horizontal plane is at an angle of 40° to 70° with the axis of the straight tube.

[0021] Furthermore, the length of the rear neck tube is 7 to 9 mm, the length of the head tube is 5 mm, and the distance from the connecting end of the front neck tube and the rear neck tube to the free end of the head tube is 9 to 15 mm.

[0022] Furthermore, the angle between the head tube and the front neck tube of the flushing and aspirating device is 165° to 170°.

[0023] Furthermore, the expanders are divided into two groups of instruments, one for the left nasal passage and the other for the right nasal passage, and the expander structures for the left and right nasal passages are symmetrically distributed with the plumb plane parallel to the axis of the straight rod as the mirror plane.

[0024] Furthermore, the aspirator is divided into two groups of instruments, one for the left nasal passage and the other for the right nasal passage, and the aspirator structures of the left and right nasal passages are symmetrically distributed with the plumb plane parallel to the axis of the straight tube as a mirror plane.

[0025] The beneficial effects of the present invention are:

[0026] The present invention includes a probe and expander for probing the natural ostium of the maxillary sinus and an aspirator for irrigating and administering medication to the maxillary sinus cavity. For most patients in clinical practice who do not need to have their uncinate processes removed (e.g., approximately 80% of patients with sinusitis and nasal polyps), due to the obstruction of the middle nasal passages in the nasal cavity caused by the lesions, the natural ostium of the maxillary sinus is inflammatory, swollen, narrowed, or even adhered. After the lesions are removed, the probe and expander are first used to probe and expand the natural ostium of the maxillary sinus, thereby clearing the semilunar fissure and the natural ostium of the maxillary sinus. The aspirator is then inserted into the natural ostium of the maxillary sinus in the same manner to irrigate and administer medication to the affected area. Since the shape and structural design of the probe and expander conform to the overall spatial structure of the human nasal cavity, maxillary sinus, and ostium-nasal meatus complex, after the instruments enter the nasal cavity, they can cleverly avoid interference from nasal structures such as the front end of the middle turbinate, slide into the middle nasal meatus space from back to front, pull forward and rotate outward on the ethmoid bubble surface to probe into the semilunar fissure, slightly rotate downward to enter the natural ostium, bypass the uncinate process, and probe into the maxillary sinus cavity, thereby probing the natural ostium of the maxillary sinus.

[0027] The probe and expander and the flushing and suction device kit of the present invention are used together to effectively prevent the treatment equipment from being injected into the too narrow middle nasal meatus and semilunar fissure, causing damage and invagination of the uncinate process, exfoliation of the sinus ostium mucosa, causing adhesion and stenosis of the natural ostium, and even damage to the orbital cardboard. It solves the problem of exploring and expanding the natural ostium of the maxillary sinus and administering medicine in the current conventional treatment methods, avoids uncinate process resection, and the patient does not need hospitalization for surgery, but can receive outpatient treatment, which greatly reduces the pain during the treatment process. At the same time, it avoids other pains caused by uncinate process resection or forced insertion of treatment equipment after surgery, reduces the patient's economic pressure and psychological burden, and conforms to the minimally invasive concept of endoscopic surgery.

[0028] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front view of the probe and expander of the present invention;

[0030] Figure 2 for Figure 1 A top view of

[0031] Figure 3 for Figure 1 Left view of;

[0032] Figure 4 A perspective schematic diagram of the front portion of the probe and expander of the present invention (upper rear portion);

[0033] Figure 5 A perspective schematic diagram of the front portion of the probe and expander of the present invention (lower rear portion);

[0034] Figure 6 It is a structural schematic diagram of the flushing and aspirating device of the present invention;

[0035] Figure 7 Schematic diagram of the end portion of the flushing and aspirating device of the present invention;

[0036] Figure 8 for Figure 7 AA cross-sectional view. DETAILED DESCRIPTION

[0037] In the figure: 1-probe, 2-V-shaped neck, 21-front neck, 22-back neck, 3-straight rod, 4-handle, 5-head tube, 61-front neck, 62-back neck, 7-straight catheter, 8-liquid pipe interface, A-horizontal plane, B-plane where the V-shaped neck is located. Example

[0038] The present invention is used for patients with maxillary sinuses who do not require uncinate process resection. Due to interference between the end of the middle turbinate and the uncinate process, direct nasal access to the maxillary sinus for irrigation and medication administration is impossible without special instruments. Therefore, probing the natural ostium of the maxillary sinus has become an important breakthrough for preserving the uncinate process. The present invention's exploration and dilation instrument for the natural ostium of the maxillary sinus is designed and manufactured based on the overall spatial structure of the human nasal cavity, maxillary sinus, and ostial meatus complex, with the exploration and dilation rod and irrigation conduit shaped to avoid the damage caused to the patient by uncinate process resection, in line with the concept of minimally invasive treatment.

[0039] Due to the complex internal structure of the nasal cavity, the shapes of the probe / dilator and aspirator should conform to the human anatomy. To facilitate the description of the probe / dilator assembly, the following descriptions of spatial relationships (e.g., "front, back, up, down, horizontal plane," etc.) are intended only to facilitate understanding of the structural features of the present invention.

[0040] The maxillary sinus natural opening exploration and expansion kit of the present invention includes an exploration and expansion device and an irrigation and suction device; the exploration and expansion device and the irrigation and suction device are divided into two groups of instruments for the left nasal passage and the right nasal passage. The structures of the instruments for the left and right nasal passages are mirror images of each other. This embodiment mainly takes the instrument suitable for the right nasal passage as an example. Figures 1 to 5 It can be seen that the probe expander includes a probe rod, a probe head 1, and a handle 4; the probe rod includes a straight rod 3, a rear neck rod 22 extending from the front end of the straight rod 3, and a front neck rod 21 extending from the front end of the rear neck rod 22. The front neck rod 21 and the rear neck rod 22 are connected at an acute angle to form a V-shaped neck rod 2;

[0041] The probe 1 is connected to the front end of the front neck rod 21, forming a curved rod structure in which the probe 1, the front neck rod 21, the back neck rod 22, and the straight rod 3 are connected in sequence. The connection between the probe, the front neck rod, the back neck rod, and the straight rod in the curved rod structure is smooth. The end of the straight rod 3 is connected to the handle 4.

[0042] The spatial position relationship between the various sections of the curved rod structure of the probe and expander is:

[0043] The axis of the straight rod 3 is arranged along the horizontal plane A; the plane B where the V-shaped neck rod is located is at an angle of 5° to 30° with the axis of the straight rod 3, and the main part of the V-shaped neck rod 2 is located below the horizontal plane A where the axis of the straight rod 3 is located, so as to ensure that after the probe expander rod enters the nasal cavity, the plane B where the V-shaped neck rod is located is parallel to the plane of the upper edge of the inferior turbinate, thereby preventing the probe expander from scraping the nasal passage and causing damage to human tissue. The angle between the front neck rod 21 and the back neck rod 22 of the V-shaped neck rod is 30°, and the opening of the angle is toward the left rear of the straight rod 3, and ensures that the projection of the axis of the front neck rod 21 in the horizontal plane A ( Figure 2 The middle dotted line) forms an angle of 40° to 70° with the axis of the straight rod 3. This setting can effectively avoid interference with the operation caused by the front end of the middle turbinate during the probing of the natural opening of the maxillary sinus.

[0044] The probe 1 and the front neck rod 21 are bent downward at an obtuse angle of 165° to 170°, and the plane in which the axis of the probe 1 and the axis of the front neck rod 21 lie is perpendicular to plane B of the V-shaped neck rod. The interconnected front neck rod 21 and the other parts of the probe and the probe rod form a hooked shape, with the probe end pointing laterally and rearwardly toward the straight rod 3. This obtuse angle facilitates the probe's insertion into the natural ostium and expansion operation, ensuring that the lacrimal orbital cardboard is not damaged during the probing process.

[0045] In this embodiment, the diameter of the probe rod is ≤2mm, the length of the probe 1 is 5mm, and the free end of the probe 1 is provided with a protruding push block. The front end of the push block is in the shape of a duck beak, which is conducive to the exploration of the semilunar fissure; the middle part of the push block is convex outward in an arc shape (that is, the middle part of the push block protrudes outward of the acute angle of the V-shaped neck rod), and the rear end of the push block smoothly transitions to the probe body or the front neck rod in a saddle-shaped arc surface, and the maximum diameter of the push block is 1.5~3mm, which meets the size of the natural opening of the maxillary sinus, and pushes and expands backward after the push block enters the natural opening, thereby expanding the posterior edge of the natural opening.

[0046] The distance between the connecting ends of the front and rear neck rods and the free end of the probe 1 is ≥ the length of the back neck rod 22; the length of the back neck rod 22 is 7 to 9 mm, and the distance between the connecting ends of the front neck rod 21 and the back neck rod 22 and the free end of the probe 1 is 9 to 15 mm. The end of the expander enters the nasal cavity, and the line connecting the connecting ends of the front and rear neck rods to the free end of the probe forms an angle of approximately 60° with the straight line perpendicular to the outer surface of the middle turbinate at the natural opening of the maxillary sinus, which meets spatial operation; the length of the straight rod 3 is set at 60 to 90 mm for easy operation.

[0047] Due to differences in age, height, weight, and internal nasal tissue, patients have individual differences. Therefore, the size and angle of each section of the probe can be selected from multiple values ​​within the numerical range to produce a set of instruments of different sizes and specifications to better meet the treatment needs of different patients. The commonly used values ​​are listed below:

[0048] The angle between the plane B where the V-shaped neck is located and the axis of the straight rod 3 can be set to multiple values ​​of 5°, 10°, 15°, 20°, 25° or 30°, and the angle is preferably 10° to 15°;

[0049] The projection of the axis of the front cervical rod 21 in the horizontal plane A forms multiple angles of 40°, 50°, 56°, 60°, 65° or 70° with the axis of the straight rod 3 to meet the angle relationship between the direction of the middle nasal meatus and the direction of the natural opening of the maxillary sinus at the semilunar fissure;

[0050] The bending angle between the probe 1 and the front neck rod 21 is set to 165°, 167° or 170°, and the maximum diameter of the push block is 1.5mm, 2mm or 3mm, which can meet the needs of patients of different ages and heights;

[0051] The length of the back neck rod can be 7 mm, 8 mm or 9 mm, and the distance from the connecting end of the front neck rod and the back neck rod to the free end of the probe can be selected as 9 mm, 10 mm, 11 mm, 13 mm or 15 mm to suit the treatment operations of most patients.

[0052] See also Figures 6 to 8 The aspirator includes a straight tube 7, a rear neck tube 62 extending from the front end of the straight tube 7, a front neck tube 61 extending from the front end of the rear neck tube, and a head tube 5 extending from the front end of the front neck tube. The front neck tube 61 and the rear neck tube 62 are connected at an acute angle to form a V-shaped neck tube; the head tube 5, the front neck tube 61, the rear neck tube 62, and the straight tube 7 are smoothly connected in sequence to form a curved tube with a diameter of 1.5 to 3 mm; the end of the straight tube 7 is equipped with a handle, and the end of the straight tube is connected to the liquid tube interface 8 connected to the end of the handle, and the liquid tube interface is used to connect an external drainage device or a drug delivery device.

[0053] Since the flushing and aspirating device is used in conjunction with the probe and expander, the spatial position relationship and parameter range of each section of the flushing and aspirating device (head tube, front neck tube, rear neck tube, straight tube) should refer to the probe, front and rear neck rods, and straight rod settings of the matching probe and expander:

[0054] The straight conduit 7 is arranged along the horizontal plane; the plane where the V-shaped neck tube is located is at an angle of 5° to 30° with the axis of the straight conduit, and the main part of the V-shaped neck tube is located below the horizontal plane where the axis of the straight conduit is located, the front and rear neck tubes are at an angle of 30° and the opening is facing the left rear of the straight conduit 7, and the projection of the axis of the front neck tube 61 in the horizontal plane is at an angle of 40° to 70° with the axis of the straight conduit 7.

[0055] The head tube 5 connects to the front neck tube 61 at an obtuse angle of 165° to 170° and bends downward. The plane in which the axis of the head tube 5 and the axis of the front neck tube 61 lie is perpendicular to the plane of the V-shaped neck tube. The rear neck tube is 7 to 9 mm long, and the distance from the connecting end of the front and rear neck tubes to the free end of the head tube is 9 to 15 mm. The head tube is 5 mm long, with its free end pointing to the left and rear of the straight tube 7 and having a diversion hole.

[0056] Commonly used or preferred values ​​such as the length and position relationship of each segmented pipe body of the flushing and aspirating device can be set corresponding to the parameters of the probe and expander.

[0057] In addition, since the probe and expander and the aspirator are divided into two sets of instruments for the left and right nasal passages, the probe and expander structures for the left and right nasal passages are symmetrically distributed with the plumb plane parallel to the axis of the straight rod as the mirror plane, and the aspirator structures for the left and right nasal passages are symmetrically distributed with the plumb plane parallel to the axis of the straight tube 7 as the mirror plane.

[0058] The design indicators of the maxillary sinus exploration and expansion component of the present invention are based on the anatomical space of the nasal cavity, middle nasal meatus, and sinus ostium and nasal meatus complex, combined with imaging data, and meet the requirements of the anatomical space. The head end of the instrument can smoothly penetrate into the natural opening of the maxillary sinus through the semilunar fissure of the middle nasal meatus without causing damage to the uncinate process and lacrimal bone orbital cardboard, and will not strip off the sinus ostium mucosa.

[0059] The actual operation of the present invention in clinical practice is briefly described below:

[0060] For most patients who do not need to have their uncinate process removed in clinical practice, the lesions cause obstruction of the middle nasal passages and poor ventilation and drainage of the maxillary sinus, resulting in secretion retention and secondary infection, leading to inflammatory swelling, stenosis, and even adhesion of the natural opening of the maxillary sinus. After the lesions are cleared, the natural opening of the maxillary sinus can be expanded using a probe. After the probe enters the common nasal meatus, it slides along the space of the posterior segment of the middle nasal meatus and rotates outward and upward to explore the middle nasal meatus. After the probe and the curved segment (V-shaped neck rod) enter the middle nasal meatus, they are pulled forward and rotated outward and downward on the surface of the ethmoid bulla. The probe slides into the semilunar fissure and explores the natural opening of the maxillary sinus. The space in the uncinate process area of ​​the semilunar fissure is pulled forward to expand. The probe is fully inserted into the natural opening and pushed backward moderately to expand the posterior and lower edge area of ​​the natural opening, expand the anterior-posterior diameter of the natural opening (the upper and lower diameters of the natural opening are bony structures and are not easy to expand), so that the semilunar fissure and the natural opening of the maxillary sinus are unobstructed.

[0061] After the probing step is completed, withdraw the probe and expander, then use the same method to insert the flushing and suction device into the nasal cavity, and make the head tube enter the natural opening of the maxillary sinus to perform flushing and suction medication on the maxillary sinus.

[0062] The expander and flushing and suction device of the present invention are used in combination, which can effectively prevent the instruments from causing damage and invagination of the uncinate process, exfoliation of the sinus mucosa, adhesion and stenosis of the natural mouth, and even damage to the orbital cardboard in the overly narrow middle nasal meatus and semilunar fissure during treatment. Patients can receive outpatient treatment, avoiding surgical resection of the uncinate process and various postoperative problems caused by the surgery, and have excellent clinical effects.

[0063] Finally, it should be noted that the above embodiments are used to illustrate the technical solution of the present invention rather than to limit it. Technicians in the relevant field may modify the implementation methods or make equivalent replacements for some technical features without departing from the essence of the technical solution of the present invention, and all of these should be included in the scope of protection required by the present invention.

Claims

1. A maxillary sinus natural ostium exploration and expansion kit, characterized by: Including probe expander and flushing and suction device; The probe expander includes a probe rod, a probe head, and a handle; the probe rod includes a straight rod, a rear neck rod extending from the front end of the straight rod, and a front neck rod extending from the front end of the rear neck rod; the front neck rod and the rear neck rod are connected at an acute angle to form a V-shaped neck rod; The probe is connected to the front end of the front neck rod, and the connection between the probe, the front neck rod, the back neck rod and the straight rod is smoothly transitioned; the end of the straight rod is connected to the handle; The spatial position relationship of the curved rod structure of the probe and expander is: The straight rod is arranged along the horizontal plane; the plane where the V-shaped neck rod is located forms an acute angle with the axis of the straight rod, and the main body of the V-shaped neck rod is located below the horizontal plane where the axis of the straight rod is located, and the angle opening of the front and rear neck rods is facing the side and rear of the straight rod; The probe is bent downward at an obtuse angle to the front neck rod, and the plane where the axis of the probe and the axis of the front neck rod lie is perpendicular to the plane where the V-shaped neck rod lies; the distance from the connecting end of the front and rear neck rods to the free end of the probe is greater than or equal to the length of the rear neck rod; The flushing and suction device includes a straight tube, a rear neck tube extending from the front end of the straight tube, a front neck tube extending from the front end of the rear neck tube, and a head tube extending from the front end of the front neck tube. The front neck tube and the rear neck tube are connected at an acute angle to form a V-shaped neck tube; the connection between the head tube, the front and rear neck tubes, and the straight tube is smoothly transitioned; the end of the straight tube is equipped with a handle, which is connected to the liquid tube interface connected to the end of the handle; The spatial position relationship of each section of the pipe body of the flushing and aspirating device is as follows: The straight conduit is arranged along a horizontal plane; the plane where the V-shaped neck tube is located forms an acute angle with the axis of the straight conduit, and the main body of the V-shaped neck tube is located below the horizontal plane where the axis of the straight conduit is located, and the angle formed by the front and rear neck tubes opens toward the side and rear of the straight conduit; The head tube and the front neck tube are connected at an obtuse angle and bent downward, and the plane where the axis of the head tube and the axis of the front neck tube are located is perpendicular to the plane where the V-shaped neck tube is located; the distance from the connecting end of the front and rear neck tubes to the free end of the head tube is greater than or equal to the length of the rear neck tube.

2. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The plane where the V-shaped neck rod is located and the axis of the straight rod are at an angle of 5° to 30°; the angle between the front neck rod and the rear neck rod of the V-shaped neck rod is 30°; the projection of the axis of the front neck rod in the horizontal plane forms an angle of 40° to 70° with the axis of the straight rod.

3. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The length of the rear neck rod is 7-9 mm, the length of the probe is 5 mm, and the distance from the connecting end of the front neck rod and the rear neck rod to the free end of the probe is 9-15 mm.

4. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The angle between the probe and the front neck rod is 165° to 170°.

5. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The free end of the probe is provided with a push block, the front end of which is duck-beak shaped, the middle part is convex outward, and the rear end is smoothly transitioned to the probe body or the front neck rod in a saddle-shaped arc. The maximum diameter of the push block is 1.5-3mm.

6. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The plane where the V-shaped neck tube is located is at an angle of 5° to 30° with the straight tube; the angle between the front and rear neck tubes of the V-shaped neck tube is 30°; the projection of the axis of the front neck tube in the horizontal plane is at an angle of 40° to 70° with the axis of the straight tube.

7. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The length of the rear neck tube is 7-9 mm, the length of the head tube is 5 mm, and the distance from the connecting end of the front neck tube and the rear neck tube to the free end of the head tube is 9-15 mm.

8. The maxillary sinus natural ostium exploration and expansion kit according to claim 1, characterized in that: The angle between the head pipe and the front neck pipe of the flushing and aspirating device is 165° to 170°.

9. The maxillary sinus natural ostium exploration and expansion kit according to any one of claims 1 to 8, characterized in that: The probe and expander are divided into two groups of instruments, one for the left nasal passage and the other for the right nasal passage, and the structures of the probe and expander for the left and right nasal passages are symmetrically distributed with the plumb plane parallel to the axis of the straight rod as the mirror plane.

10. The maxillary sinus natural ostium exploration and expansion kit according to any one of claims 1 to 8, characterized in that: The aspirator is divided into two groups of instruments, one for the left nasal passage and the other for the right nasal passage, and the aspirator structures of the left and right nasal passages are symmetrically distributed with the plumb bob plane parallel to the axis of the straight catheter as a mirror plane.

Images