Endoscope-guided positioning paranasal sinus accurate dosing device

Abstract

The utility model relates to an endoscope-guided positioning paranasal sinus precise dosing device. The endoscope-guided positioning paranasal sinus precise dosing device comprises an inverted-V-shaped nose back plate, an inverted-T-shaped rail, a rail pipe, a spherical joint and a threaded pipe nail. The inverted-V-shaped nose back plate coincides with the nose back of a patient in appearance, the nose-near tip end is connected with the upper end of the inverted-T-shaped rail through a spherical joint, the lower end of the inverted-T-shaped rail is provided with a rail pipe, a threaded pipe nail structure is arranged on the side wall of a glenoid fossa of the nose back plate and the rail pipe, the spherical joint can be locked and fixed by screwing a threaded nail, and the positions of the nose back plate and the rail pipe are constant. Positioning of the accurate drug delivery device by guiding and positioning the paranasal sinus through the endoscope: the nose back plate coincides with the nose back of a patient, the endoscope reaches the target paranasal sinus from the anterior nostril through the track tube, the positions of the endoscope and the side wall of the nasal cavity are finely adjusted, so that the track tube does not make obvious contact with the side wall of the nasal cavity, the threaded nail is screwed to lock the spherical joint, the depth of the endoscope is marked, and the endoscope is withdrawn. And a dosing tube with the same length as the marking endoscope extends into the paranasal sinus through the track to implement dosing or flushing.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to local drug administration treatment for nasal diseases and after endoscopic nasal surgery. The invention is a local sinus drug delivery device which is precisely positioned under the guidance of an endoscope and can also perform flushing treatment. Background Art

[0002] Various common and frequently-occurring clinical diseases such as rhinitis, sinusitis, nasal polyps, and nasal tumors account for about 8-15% of the natural population. The nasal cavity and paranasal sinuses are complex in anatomy and have large differences in lesions. The morphology of the paranasal sinus cavity formed after surgery varies with the scope of surgery. Therefore, local accurate and effective drug administration and flushing of the paranasal sinuses is one of the difficult problems in the postoperative treatment of rhinological diseases. There are many existing methods of drug administration in the nasal cavity and paranasal sinuses, such as conventional nasal sprays, because the mist sprayed is umbrella-shaped, and the nasal cavity is fissure-shaped, and the sprayed liquid has insufficient spray force and cannot enter the middle and posterior nasal cavity, and there is almost no drug distribution in the paranasal sinuses. Atomization, washing, dripping medicine plus head rotation are all methods used to make up for the shortcomings of conventional nasal sprays and to increase the dosage of local glucocorticoids. Because the dosage is 5-10 times that of conventional nasal spray glucocorticoids, it is impossible to achieve accuracy, standard and effectiveness. It is clinically recommended to use it for only 2 weeks. For a chronic recurrent disease that requires long-term drug control, it is obvious that such a method of medication cannot meet the needs of clinical treatment. Therefore, the treatment effect is poor. For example, the recurrence rate of nasal polyps is close to 60% due to ineffective nasal spray after surgery. This requires a device that can adapt to the different nasal cavities and sinus spaces of patients through simple operations to guide the spray tube or irrigator into the nasal cavity or sinus cavity to achieve local precise drug delivery or irrigation treatment. Summary of the invention

[0003] The purpose of the present invention is to address the above deficiencies and provide a "∧"-shaped nasal dorsum plate that completely overlaps with the patient's nasal dorsum as a fulcrum, and the nasal tip of the plate is connected to a "⊥"-shaped track with a spherical joint in front of the upper part of the anterior nostril. After the nasal dorsum plate is overlapped with the patient's nasal dorsum, one end of the "⊥"-shaped track tube extends into the nasal cavity, and the endoscope passes through the track tube from the anterior nostril directly to the target sinus. At the same time, the position of the endoscope is adjusted so that the track tube has no direct contact with the nasal mucosa. At this time, the spherical joint threaded screw is tightened to lock the spherical joint, the position of the track and the nasal dorsum plate is constant, and after recording the depth of the endoscope, the endoscope is removed. After the nasal dorsum guide plate is repeatedly overlapped with the patient's nasal dorsum, the position of the track tube is constant, and the spray tube with the depth calibrated by the endoscope is extended along the track tube into the target sinus cavity, and local precise drug administration or flushing treatment of the sinuses can be implemented.

[0004] The solution adopted by the present invention to solve the technical problem is to use a nasal dorsum plate that coincides with the nasal dorsum as a fixed support point, a sinus drug delivery track channel that is precisely positioned under endoscope guidance, and a calibrated depth drug delivery tube that is pushed into the track tube to achieve a device for precise sinus drug delivery, including a "∧"-shaped nasal dorsum plate, a "⊥"-shaped track, a track tube, a spherical joint, and a threaded tube nail.

[0005] Furthermore, a precise sinus drug delivery device positioned under endoscope guidance is provided, characterized in that: the nasal dorsum plate is in the shape of "∧", the specifications are selected according to the size of the patient's nasal dorsum, the angle can be adjusted according to the outward protrusion of the nasal dorsum so that it completely overlaps with the patient's nasal dorsum, and there is a spherical joint socket near the tip of the nose, which can accommodate the spherical joint head at the upper end of the "⊥"-shaped track.

[0006] Furthermore, the invention is characterized in that the upper end of the "⊥"-shaped track is a spherical joint head, which forms a spherical joint structure with the spherical joint socket on the nose dorsum plate. The lower end of the "⊥"-shaped track is a track tube, which can accommodate the endoscope to pass through.

[0007] Furthermore, the feature is that the side wall of the spherical joint socket has a threaded tube nail structure, and when the threaded nail is tightened, the spherical joint can be locked and fixed.

[0008] Furthermore, the invention is characterized in that: the size and protruding angle of the patient's nasal dorsum are measured, the appropriate specifications of the nasal dorsum plate are selected, the angle of the nasal dorsum plate is adjusted, the patient lies on his back, the nasal dorsum plate is overlapped with the patient's nasal dorsum, the screw is rotated to slightly loosen the ball joint, one end of the track tube is directed toward the nasal cavity, the endoscope enters through the track tube to reach the front of the target sinus, the endoscope is fine-tuned so that the track tube does not contact the side wall of the nasal cavity, the screw is tightened to lock the ball joint, the depth of the endoscope penetrating into the nasal cavity and sinus is marked, and the endoscope is withdrawn. The track positioning of the drug delivery device is completed.

[0009] A method for using an endoscopically guided, precisely positioned sinus medication device comprises the following steps:

[0010] (1) The positioned dorsal plate of the drug delivery device is completely aligned with the dorsum of the patient's nose. At this time, the position of the track tube coincides with the position guided by the nasal endoscope. The tube connected to the drug delivery / irrigation device is pushed to the calibrated depth through the track, thereby achieving precise drug delivery or irrigation treatment of the target sinus.

[0011] (2) After the medication or flushing treatment is completed, remove the medication dispenser, clean it with running water, and place it in a cool place for future use.

[0012] Compared with the prior art, the present invention has the following beneficial effects: a nasal dorsum plate that is exactly the same as the patient's nasal dorsum shape overlaps with the patient's nasal dorsum to obtain a support with a constant position. The endoscope passes through the nasal cavity to the sinus through the orbital tube and is fine-tuned. When the position is appropriate, the spherical joint is locked to obtain the best nasal passage track through the anterior nostril to the target sinus. The overlap of the nasal dorsum plate and the nasal dorsum is repeated to obtain a constant position of the orbital tube. Afterwards, precise medication of the target sinus can be achieved accurately through the orbital tube. It solves the problem of precise sinus medication or irrigation treatment through the optimal pathway for patients with different nasal cavities and sinus spaces. It makes it possible to achieve long-term effective control of local treatment of sinusitis after surgery, especially refractory sinusitis with nasal polyps. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is the structure diagram of the utility model

[0014] 1-"∧" shaped nose plate; 2-spherical joint; 3-"⊥" shaped track; 4-threaded tube nail; 5-track tube DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, a precise sinus medication device guided and positioned by endoscope comprises a "∧"-shaped nasal dorsum plate 1, a spherical joint 2, a "⊥"-shaped track 3, a threaded tube nail 4, and a track tube 5. A spherical joint 2 is provided above the anterior nostril at the lower end of the nasal dorsum plate 1, forming a multi-directional rotatable spherical joint 2 with the upper end of the track 3, and a track tube 5 is provided at the lower end. A threaded tube nail 4 is provided on the outside of the spherical joint 2 socket to fix the joint head of the spherical joint 2.

[0017] In this embodiment, after the nasal dorsum plate 1 is overlapped with the patient's nasal dorsum, the threaded tube pin 4 of the spherical joint 2 is loosened, and the endoscope enters the nasal cavity through the track tube 5 to reach the target sinus and adjusts the position of the endoscope in the nasal cavity so that the track tube 5 does not contact the nasal cavity tissue. At this time, the threaded tube pin 4 is tightened to lock the spherical joint 2 so that the position of the track 3 and the nasal dorsum plate 1 is constant. The nasal dorsum plate 1 is reused to overlap with the patient's nasal dorsum, the position of the track 3 is constant, and the medication or flushing tube can be pushed to the target sinus through the track tube 5.

[0018] A method for using a precise sinus medication device guided by endoscope, comprising the following steps:

[0019] (1) Measure the width and protrusion angle of the patient's nasal dorsum, select a nasal dorsum plate of appropriate specifications, adjust the angle of the nasal dorsum plate to match the patient's, and then overlap the nasal dorsum plate with the patient's nasal dorsum;

[0020] (2) Rotate the screws to loosen the spherical joint slightly, so that the track can move in multiple directions;

[0021] (3) The assistant fixes the nasal dorsum plate, points one end of the track tube toward the nasal cavity, and extends the endoscope from the anterior nostril to the target sinus through the track tube. The position of the endoscope is adjusted so that the track tube does not contact the nasal mucosa. At this time, tighten the screw to lock the ball joint so that the track does not move due to external force and the nasal dorsum plate. After marking the endoscope depth, withdraw the endoscope and the drug delivery device. Align the nasal dorsum plate with the patient's nasal dorsum again, observe the position of the track in the nasal cavity, and see if there is any contact with the nasal mucosa and discomfort. A drug delivery tube with the same length as the endoscope mark is extended into the sinus through the track tube for precise drug delivery or flushing.

[0022] The preferred embodiments listed above further illustrate the objectives, technical solutions and advantages of the present invention in detail. It should be understood that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscopically guided sinus precise drug delivery device, characterized in that: It includes a "∧"-shaped nasal dorsum plate, a "⊥"-shaped track, a track tube, a spherical joint, and a threaded tube nail. The "∧"-shaped nasal dorsum plate can be adjusted to an angle to coincide with the patient's nasal dorsum shape. There is a spherical joint socket near the anterior nostril. The upper end of the "⊥"-shaped track is a hemispherical joint head, which forms a spherical joint connection with the spherical joint socket at the lower end of the nasal dorsum plate. The side wall of the joint socket has a threaded tube and nail structure. The spherical joint can be locked and fixed by tightening the threaded nail, so that the position of the nasal dorsum plate and the track is constant.

2. According to claim 1, an endoscopically guided and positioned sinus precise drug delivery device is characterized by: According to the measured size of the patient's nasal dorsum and the angle of protrusion, select the appropriate specifications, adjust the angle of the nasal dorsum plate to coincide with the patient's nasal dorsum, rotate the screw, slightly loosen the spherical joint, extend one end of the track tube into the nasal cavity, and the endoscope passes through the track tube through the anterior nares to reach the target sinus. Fine-tune the position of the endoscope in the nasal cavity so that the track tube does not contact the side wall of the nasal cavity. When the position is appropriate, tighten the screw, lock the spherical joint, mark the depth of the endoscope entering the nasal cavity, obtain the best access track from the anterior nares to the target sinus and the depth of the drug delivery tube entering the nasal cavity, repeat to make the nasal dorsum plate coincide with the patient's nasal dorsum, and keep the position of the track tube constant.

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