Lacrimal passage drainage tube assembly of light positioning structure

Abstract

The utility model discloses a lacrimal passage drainage tube assembly of a light positioning structure, and relates to the technical field of lacrimal passage drainage. The guide piece comprises a guide tube, a guide wire and a guide probe; a containing section is arranged in the guide tube, and a tube core is arranged in the containing section; one end of the guide tube is fixedly connected with the guide probe, and the other end of the guide tube is fixedly connected with the guide wire; the guide probe is attached with fluorescein sodium; the guide probe has the advantages that due to the fact that the guide probe is attached with fluorescein sodium, the recognition effect is improved, the position sensing success rate is high, operation is convenient, the operation time is shortened, operation complications are reduced, and the operation success rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of lacrimal drainage, and more specifically, to a lacrimal drainage tube assembly with a light positioning structure. Background Art

[0002] Lacrimal duct diseases are common and frequently-occurring diseases in ophthalmology, mainly including traumatic lacrimal canaliculus rupture. Currently, the commonly used treatment methods include lacrimal duct probing, lacrimal duct intubation, lacrimal duct laser angioplasty, dacryocystorhinostomy, etc. Each surgical method has its deficiencies. The simple lacrimal duct probing is no longer used alone clinically due to poor effects. Lacrimal duct laser angioplasty often causes direct damage to the lacrimal duct mucosa due to the burning effect of the laser, resulting in re-obstruction of the lacrimal duct after surgery. Dacryocystitis often adopts dacryocystorhinostomy, which has a large surgical injury and destroys the original anatomical structures of the lacrimal duct and nasal cavity. How to restore the blocked and ruptured lacrimal duct to its original anatomical state, currently, lacrimal duct probing combined with lacrimal duct intubation is often used. It can be seen from the anatomy of the lacrimal duct that the lacrimal duct is relatively narrow and tortuous and complex. How to smoothly insert a silicone implant tube into the lacrimal duct is a difficult thing. Currently, most are lacrimal drainage tube probes. The probe of the drainage tube is taken out of the nasal cavity through a traction hook, so that the connected lacrimal duct implant tube enters the lacrimal duct. However, in this process, due to often being "blind operation", the vision is very poor, usually with relatively high requirements for the operator. Since the identification of the probe mainly relies on the operator's hand feeling to perceive the position of the probe, the identification success rate is low, and it will cause secondary damage to the patient's nasal cavity, such as nosebleed, etc., ultimately resulting in poor postoperative effects.

[0003] The authorized announcement number CN 219680861 U discloses an artificial lacrimal canaliculus assembly that is convenient for finding the nasal end during lacrimal canaliculus rupture anastomosis, which records that "it includes a silicone drainage tube, a self-luminous flexible probe, and a special probe hook. The silicone drainage tube and the self-luminous flexible probe are connected by a plug-in method; the silicone drainage tube is a hollow tubular structure integrally formed, including a lacrimal punctum plug with a swollen head end, a connecting tube, and a lacrimal duct drainage tube with one end open, which are connected in sequence. The connecting tube is connected to the open end of the lacrimal duct drainage tube. The lacrimal punctum plug is an oval cap-shaped structure, and a circular hole communicating with the connecting tube is provided at the center of the lacrimal punctum plug. The central axis of the connecting tube and the central axis of the lacrimal duct drainage tube form an angle of 30 - 45°; the self-luminous flexible probe is a tubular structure with blind ends at both ends and a hollow interior". Since the self-luminous flexible probe is made of a soft material, that is, the hardness of the self-luminous flexible probe is poor. When the patient's lacrimal canaliculus is stenotic or blocked, it increases the implantation difficulty of the self-luminous flexible probe, and even may occur the phenomenon that the self-luminous flexible probe cannot be implanted, increasing the difficulty of the surgery. Therefore, in order to solve the above technical problems, this application proposes a lacrimal drainage tube assembly with a light positioning structure. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a lacrimal duct drainage tube assembly with a light positioning structure.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A lacrimal duct drainage tube assembly with a light positioning structure includes a guiding member and a lacrimal duct catheter; the guiding member includes a guiding tube, a guiding wire, and a guiding probe.

[0007] An accommodation space is provided inside the guiding tube, and a tube core is provided inside the accommodation space.

[0008] One end of the guiding tube is fixedly connected to the guiding probe, and the other end of the guiding tube is fixedly connected to the guiding wire.

[0009] The guiding probe is attached with sodium fluorescein.

[0010] The end of the guiding wire away from the guiding tube is fixedly connected to the lacrimal duct catheter.

[0011] Preferably, the material of the tube core is made of iron material.

[0012] Preferably, a placement hole is provided on the side wall of the guiding tube, and the placement hole communicates with the accommodation space.

[0013] Preferably, the length of the guiding tube is 20 - 25 centimeters.

[0014] Preferably, the length of the tube core is 8 - 12 centimeters.

[0015] Preferably, the guiding probe is of a semi-elliptical structure, and the length of the guiding probe is 0.8 - 1.2 centimeters.

[0016] Preferably, an annular groove is provided on the outer periphery of the guiding probe.

[0017] Preferably, the lacrimal duct catheter is made of silica gel material.

[0018] Compared with the prior art, the utility model has the following beneficial effects: By providing a guiding member and a lacrimal duct catheter, and placing the stylet inside the guiding tube, the hardness of the guiding tube is increased. When the lacrimal canaliculus of a patient is stenotic or blocked, due to the increased hardness of the guiding tube by the stylet, it is convenient for the guiding tube to be smoothly implanted into the lacrimal canaliculus of the patient. And because the guiding probe is attached with sodium fluorescein, the recognition effect is increased and the success rate of position perception is high, so as to facilitate operation, shorten the operation time, reduce surgical complications, improve the surgical success rate. At the same time, sodium fluorescein, as a commonly used clinical dye, is widely used in medical detection means and is recognized as the most commonly used, relatively safe and stable contrast agent. Under the correct use, the safety of sodium fluorescein is good. It is widely used in the medical field and is considered a relatively safe diagnostic tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic structural diagram of a lacrimal duct drainage tube assembly with a light positioning structure proposed by the utility model;

[0020] Figure 2 FIG. is a schematic internal structure diagram of the guiding tube in a lacrimal duct drainage tube assembly with a light positioning structure proposed by the utility model;

[0021] Figure 3 FIG. is a schematic structural diagram of the stylet in a lacrimal duct drainage tube assembly with a light positioning structure proposed by the utility model.

[0022] 1. Guiding member; 2. Lacrimal duct catheter; 3. Guiding tube; 4. Guiding wire; 5. Guiding probe; 6. Accommodating section; 7. Stylet; 8. Annular groove; 9. Insertion hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Refer to Figures 1 to 3 To further illustrate an embodiment of a lacrimal duct drainage tube assembly with a light positioning structure of the utility model.

[0024] A lacrimal duct drainage tube assembly with a light positioning structure includes a guiding member 1 and a lacrimal duct catheter 2; the guiding member 1 includes a guiding tube 3, a guiding wire 4 and a guiding probe 5;

[0025] An accommodating section 6 is arranged inside the guiding tube 3, and a stylet 7 is arranged inside the accommodating section 6;

[0026] One end of the guiding tube 3 is fixedly connected to the guiding probe 5, and the other end of the guiding tube 3 is fixedly connected to the guiding wire 4;

[0027] The guiding probe 5 is attached with sodium fluorescein. As a commonly used clinical dye, sodium fluorescein is widely used in medical detection methods. It is a recognized commonly used, relatively safe, and stable contrast agent. Under correct use, the safety of sodium fluorescein is relatively good. It is widely used in the medical field and is considered a relatively safe diagnostic tool.

[0028] One end of the guiding wire 4 far from the guiding tube 3 is fixedly connected to the lacrimal duct catheter 2.

[0029] The stylet 7 is placed inside the accommodation section 6. Therefore, the hardness of the guiding tube 3 is increased by the stylet 7. When the lacrimal canaliculus of the patient shows stenosis or obstruction, due to the increased hardness of the guiding tube 3 by the stylet 7, it is convenient for the guiding tube 3 to be smoothly implanted into the lacrimal canaliculus of the patient.

[0030] When it is necessary to implant the lacrimal duct catheter 2 into the patient's lacrimal duct, the staff inserts the guiding probe 5 into the patient's lacrimal punctum, enters the nasolacrimal duct through the lacrimal canaliculus, and finally enters the nasal cavity, so as to realize that the guiding tube 3 and the guiding wire 4 are sequentially inserted into the patient's lacrimal punctum, enter the nasolacrimal duct through the lacrimal canaliculus, and then enter the nasal cavity, and then implant the lacrimal duct catheter 2 into the patient's lacrimal duct, making the lacrimal duct catheter 2 serve as a temporary substitute for the lacrimal duct and play a supporting role to prevent adhesion of the lacrimal duct mucosa.

[0031] Since the guiding probe 5 is attached with sodium fluorescein, when the nasal cavity is irradiated with cobalt blue light, the guiding probe 5 entering the nasal cavity will emit green light, so it is very easy to find the position of the guiding probe 5. Clamp the guiding probe 5 with a nasal bayonet forceps, take out the guiding probe 5, and then pull the silk thread through the guiding tube 3 and the guiding wire 4 to pull the lacrimal duct catheter 2 into the lacrimal duct and lead it out of the nasal cavity.

[0032] The material of the stylet 7 is made of iron material. Since the iron stylet 7 is located inside the accommodation section 6, the hardness of the guiding tube 3 is increased. When the lacrimal canaliculus of the patient shows stenosis or obstruction, it is convenient for the guiding tube 3 to be smoothly implanted into the lacrimal canaliculus of the patient.

[0033] A placement hole 9 is provided on the side wall of the guiding tube 3. The placement hole 9 communicates with the accommodation section 6. Since the placement hole 9 is provided on the side wall of the guiding tube 3, it is convenient for the staff to put the stylet 7 into the inside of the accommodation section 6 through the placement hole 9.

[0034] The length of the guiding tube 3 is 20 - 25 cm, which is convenient for the guiding tube 3 to enter the nasal cavity from the patient's lacrimal punctum.

[0035] The length of the stylet 7 is 8 - 12 cm, which increases the hardness of the lower end of the guiding tube 3 and ensures that the guiding tube 3 is smoothly implanted into the lacrimal canaliculus of the patient.

[0036] The guiding probe 5 is of a semi-elliptical structure. The length of the guiding probe 5 is 0.8 - 1.2 cm, which is convenient for the guiding probe 5 to smoothly penetrate from the lacrimal punctum of the patient, enter the nasolacrimal duct through the lacrimal canaliculus, and then enter the nasal cavity. The semi-elliptical shape can also avoid causing unnecessary damage to the inner wall of the cavity and protect the inner membrane of the cavity.

[0037] An annular groove 8 is provided on the outer periphery of the guiding probe 5. When cobalt blue light irradiates the nasal cavity, the guiding probe 5 entering the nasal cavity will emit green light, so that the position of the guiding probe 5 can be easily found. Clamp the annular groove 8 with a nasal bayonet forceps, take out the guiding probe 5, and then pull the silk thread of the lacrimal duct catheter 2 into the lacrimal duct through the guiding tube 3 and the guiding wire 4 and lead it out of the nasal cavity.

[0038] The lacrimal duct catheter 2 is made of silica gel material.

[0039] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A tear duct drainage tube assembly with an optical positioning structure, characterized in that: It comprises a guide piece (1) and a lacrimal duct placement tube (2); the guide piece (1) comprises a guide tube (3), a guide wire (4) and a guide probe (5); The guide tube (3) is provided with a receiving space (6) inside, and the receiving space (6) is provided with a tube core (7) inside; One end of the guide tube (3) is fixedly connected to the guide probe (5), and the other end of the guide tube (3) is fixedly connected to the guide wire (4); The guide probe (5) is provided with sodium fluorescein; One end of the guide wire (4) away from the guide tube (3) is fixedly connected to the lacrimal duct placement tube (2).

2. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: The tube core (7) is made of iron material.

3. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: The side wall of the guide tube (3) is provided with an insertion hole (9), and the insertion hole (9) is connected to the accommodating space (6).

4. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: The length of the guide tube (3) is 20-25 cm.

5. The tear duct drainage tube assembly of the optical positioning structure according to claim 3, characterized in that: The length of the tube core (7) is 8-12 cm.

6. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: The guiding probe (5) is a semi-elliptical structure, and the length of the guiding probe (5) is 0.8-1.2 centimeters.

7. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: An annular groove (8) is provided on the outer circumference of the guide probe (5).

8. The tear duct drainage tube assembly of the optical positioning structure according to claim 1, characterized in that: The lacrimal duct tube (2) is made of silicone material.

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