CN219480580U - Disposable lacrimal passage smooth tube - Google Patents

Abstract

A disposable lacrimal passage smooth tube belongs to the field of ophthalmology, the lacrimal passage smooth tube comprises two sections of hollow silicone tubes with the same length, each section of hollow silicone tube comprises a hollow tube part and a guide needle part, two ends of a silicone strip are respectively connected with the end parts of the guide needle parts of the two sections of hollow silicone tubes in an adhesive mode, guide needle holes are formed in the same positions of the hollow tube parts of the two sections of silicone tubes, the other ends of the two sections of silicone tubes are adhesive blocking ends, and the adhesive blocking ends are of smooth hemispherical structures. By utilizing the utility model, the operation process can be simplified, the operation time can be shortened, the cost of the instrument can be reduced, and the burden of the operation cost of a patient can be reduced.

Description

Disposable lacrimal passage smooth tube

Technical Field

The utility model relates to a smooth tube, in particular to a disposable lacrimal passage smooth tube, and belongs to the field of ophthalmology.

Background

The lacrimal passage comprises upper and lower punctum, upper and lower lacrimal canaliculus, lacrimal main tube, lacrimal sac and nasolacrimal duct, and has main functions of draining tears into nasal cavity

Normally, a portion of the tear fluid produced by the lacrimal gland, in addition to disappearing by evaporation, is expelled through the lacrimal passage, depending on the "tear pump" action of the orbicularis oculi muscles. When the eyelid is opened, the orbicularis oculi muscle of the eye is relaxed, the lacrimal canaliculus and the lacrimal sac are elastically expanded by themselves, negative pressure is formed in the cavity, and tear fluid accumulated in the lacrimal lake is sucked into the lacrimal canaliculus and the lacrimal sac through the open lacrimal punctum. Lacrimal canaliculus capillary action also aids tear fluid in entering the lacrimal canaliculus. When the eyelid is closed, the punctum is temporarily closed and the orbicularis oculi muscle contracts, squeezing the lacrimal canaliculus and the lacrimal sac, forcing the tear fluid in the lacrimal sac to drain into the nasal cavity through the nasolacrimal duct.

However, the lacrimal passage is blocked, that is, the lacrimal passage is blocked, and the medical technical term is called lacrimal passage blocking, and the lacrimal passage is divided into an upper lacrimal canaliculus, a lower lacrimal canaliculus, a lacrimal manifold, a lacrimal sac and a nasolacrimal duct, and the nasolacrimal duct opening is positioned in the nasal cavity lower nasolacrimal duct. The lacrimal system is an elongated structure and is prone to blockage, and blockage of any part of the lacrimal system can lead to the blockage of the whole lacrimal passage. Lacrimal secretion is the secretion of ocular tear water from the lacrimal gland to the ocular surface, from the lacrimal duct through the lower punctum and upper punctum, from the lacrimal sac into the nasolacrimal duct and into the nasal cavity. When the lacrimal passage is blocked, tears can not flow out, and can only flow out through eyes to cause continuous lacrimation, part of patients can have more secretion or inflammation in lacrimal sac causes chronic dacryocystitis to appear, part of patients can have cyst, pus flows out from punctum, eyes or lacrimal sac parts to form abscess when pressed, and the abscess below is obvious.

Some patients may have acute dacryocystitis manifested as red and swollen dacryocystitis, and red, swollen and hot pain on the skin. The patients with lacrimal passage obstruction have more causes, which are caused by ocular surface inflammation, such as keratitis or conjunctivitis, and nasal cavity tumor, nasal cavity polyp, lacrimal passage polyp or tumor, calculus or lacrimal passage foreign body can cause lacrimal passage obstruction, which are caused by nasal cavity inflammation or hypertrophy of inferior turbinate to block the lower lacrimal passage opening. The occurrence of lacrimal obstruction suggests early examination in hospitals, further defining the etiology, and further targeted treatment according to the etiology.

Lacrimal passage blockage can be usually treated by medicines, surgery and physical therapy, and is carried out under the guidance of doctors.

1. Drug treatment: due to obstruction of the lacrimal passage by infection or inflammation, antibiotic drug therapy can be used under the direction of doctors.

2. Surgical treatment: different treatment methods are adopted for different lesion sites: the method specifically comprises the following steps:

(1) Punctum eversion: if accompanied by the eversion of the eyelid, corrective surgery is generally performed, including inner canthus shaping, facial contracted muscle reconstruction, etc., and then correction is performed by adopting a diamond meibomian conjunctival resection;

(2) Punctum obstruction: the silicone tube is generally implanted in a hospital to resist shrinkage of the blocked part, and the silicone tube is generally taken out after 2-3 months;

(3) Nasolacrimal duct obstruction: usually, the lacrimal passage probing is combined with the imbedding of a silica gel tube, and if the effect is poor, the dacryocystorhinostomy can be performed.

3. Physical treatment: can be applied to eyes by using a hot towel, can promote the absorption of inflammation, and achieves the effect of auxiliary treatment.

In the ophthalmic lacrimal passage operation, a tool for dredging the lacrimal passage generally uses a probe, and has no better lacrimal passage expanding instrument, thereby bringing inconvenience to the lacrimal passage expanding operation.

Disclosure of Invention

Aiming at the problem that in the ophthalmic lacrimal passage operation, a tool for dredging the lacrimal passage generally uses a probe, and has no better lacrimal passage expanding instrument, so that great inconvenience is brought to the lacrimal passage expanding operation.

The technical scheme of the utility model is as follows: the disposable lacrimal passage smooth tube comprises a hollow silicone tube and a silicone strip, wherein the lacrimal passage smooth tube comprises two sections of hollow silicone tubes with the same length, each section of hollow silicone tube comprises a hollow tube part and a guide needle part, two ends of the silicone strip are respectively and adhesively connected with the end parts of the guide needle parts of the two sections of hollow silicone tubes, guide needle holes are formed in the same positions on the hollow tube parts of the two sections of silicone tubes, and the other ends of the two sections of silicone tubes are of a semispherical structure with smooth adhesive blocking ends;

further, the hollow tube part and the guide needle part are bounded by guide needle holes, wherein the distance from the end part of the hollow tube part of the silica gel hollow tube to the guide needle holes is 24-26mm, the length of the guide needle part of the silica gel hollow tube is 5-7mm,

further, the length of the silica gel strip connected between the ends of the guide pin parts 10b of the two sections of hollow silica gel pipes with the same length is 24-26 mm;

further, the inner diameter of the two sections of hollow silicone tubes 10 with the same length is 0.55mm plus or minus 0.02, and the outer diameter is 1.03mm plus or minus 0.02;

further, the total length of the silica gel strip 11 is 24-26mm, the diameter of the silica gel strip 11 is 0.55mm plus or minus 0.02, the middle is marked with a middle mark, and the length of the matched guide pin is 85-87 mm.

The utility model has the positive effects that: by arranging the hollow tube part 10a on the hollow silicone tube 10, a guide needle can be inserted into the hollow tube part along the guide needle hole, so that the hollow silicone tube is driven to be inserted along the lacrimal passage from the nasal bone to the nasal cavity through the small lacrimal punctum conducted by the probe, and a pair of hollow silicone tubes are respectively inserted from the upper lacrimal punctum and the lower lacrimal punctum, so that the hollow silicone tubes can support the lacrimal passage, and the lacrimal passage is enlarged, and the support time is generally about 3 months; the blocking end of the adhesive is made into a smooth hemispherical structure, so that the silica gel hollow tube is beneficial to being inserted along the lacrimal passage; by utilizing the utility model, the operation process can be simplified, the operation time can be shortened, and the burden of the operation cost of a patient can be reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic cross-sectional view of the present utility model.

Description of the reference numerals: 10-hollow silicone tube, 10 a-hollow tube part, 10 b-guide needle part, 11-silicone strip, 11 a-middle mark, 12-guide needle hole, 13-adhesive blocking end, 13-bonding end, 15-hollow part and 16-transition part.

Detailed description of the preferred embodiments

The following describes the technical scheme of the present utility model in detail with reference to the accompanying drawings, and a brief description of the manufacturing and using methods thereof is provided.

The technical scheme of the utility model is as follows: a disposable lacrimal passage clear tube, FIG. 1 is a schematic view of the whole structure of the present utility model, and FIG. 2 is a schematic view of the cross-section structure of the present utility model. The disposable lacrimal passage smooth tube comprises a hollow silicone tube 10 and a silicone strip 11, wherein the lacrimal passage smooth tube comprises two sections of hollow silicone tubes 10 with the same length, each section of hollow silicone tube 10 comprises a hollow tube part 10a and a guide needle part 10b, two ends of the silicone strip 11 are respectively connected with the ends of the guide needle parts 10b of the two sections of hollow silicone tubes 10 in an adhesive bonding mode, specifically, two ends of the silicone strip 11 are respectively inserted into the ends of the guide needle parts 10b of the hollow silicone tubes 10, the insertion depth is about 2mm, adhesive bonding glue is coated on the insertion parts, guide needle holes 11a are formed in the same positions of the hollow tube parts 10a of the two sections of silicone tubes 10, the other ends of the two sections of silicone tubes 10 are provided with silicone adhesive sealing ends 13 of silicone fluid, a hollow part 15 is formed in the middle of the silicone tube 10, and the adhesive sealing ends 13 are polished into a smooth hemispherical structure by a grinder.

The hollow tube part 10a and the guide needle part 10b are bounded by a guide needle hole 12, wherein the distance from the end part of the hollow tube part 10a of the silica gel hollow tube 10 to the guide needle hole 12 is 24-26mm, and the length of the end part of the guide needle part 10b of the silica gel hollow tube 10 is 5-7mm; the inner periphery of the end of the guide pin part 10b is inserted with the end of the silica gel strip 11, and after the two ends of the silica gel strip 11 are respectively inserted into one ends of the two silica gel hollow tubes 10, the outer periphery silica gel hollow tubes of the connecting part are chamfered by a lens grinding machine to form a transition part 16.

The length of the silica gel strip 11 connected between the bonding ends 13 of the guide pin parts 10b of the two hollow silica gel pipes 10 with the same length is 24-26 mm.

The inner diameter of the two hollow silicone tubes 10 with the same length is 0.55mm plus or minus 0.02, and the outer diameter is 1.03mm plus or minus 0.02.

The total length of the silica gel strip 11 is 24-26mm, the diameter of the silica gel strip 11 is 0.55mm plus or minus 0.02, the middle is marked with a middle mark, and the length of the matched guide pin is 85-87mm

In this embodiment, the silica gel strip is 25 mm and the guide pin is 85mm long.

Surgical procedure:

1) Three days before intubation, the lacrimal passage is flushed once by gentamicin 4 ten thousand units of normal saline every day, the eye is dripped once every five minutes by obukaine for three times before operation, the skin around the eyes is conventionally disinfected, a hole towel is paved, the upper punctum and the lower punctum are expanded, a lacrimal passage probe is used, and the lacrimal passage probe passes through the upper punctum, the lower punctum, the lacrimal canaliculus and the lacrimal sac and then is simultaneously penetrated through the nasolacrimal canal and the nasal cavity, and then the probe is pulled out;

2) After the probe is used for probing the lacrimal passage, the guide needle is inserted into the guide needle hole 12 of the disposable lacrimal passage open tube and extends to the inner end of the hollow part 10a, the hemispherical structure at the outer end of the hollow part 10a pushes any end of the open tube from the lower punctum to the nasal cavity, the marking point at the center of the tube body is standard to the opening of the lower punctum, a cotton swab is used for pressing the small punctum of the lacrimal passage, the guide needle is pulled out, the other end of the tube body is pushed to the nasal cavity through the upper punctum in the same way, the guide needle is pulled out, and the visible blue point from the center of the drainage tube body to the inner canthus is adjusted.

The disposable lacrimal passage open tube can be suitable for the following operations:

1, a step of; punctum membrane closure;

2; stenosis, obstruction and fracture of lacrimal canaliculus;

3, a step of; endoscopic dacryocystorhinostomy;

4, a step of; conjunctival sac nasal anastomosis;

5, a step of; support and drain after chronic dacryocystitis treatment.

According to the utility model, the hollow tube part 10a is arranged on the hollow silicone tube 10, the guide needle can be inserted into the hollow tube part 10b along the guide needle hole 12, so that the hollow silicone tube 10 is driven to be inserted into the lacrimal passage from the nasal bone to the nasal cavity along the small lacrimal punctum conducted by the probe, and a pair of hollow silicone tubes are respectively inserted from the upper lacrimal punctum and the lower lacrimal punctum, so that the hollow silicone tube 10 can support the lacrimal passage, the lacrimal passage can be expanded, the support time is generally about 3 months, and the silicone hollow tube 10 is conveniently inserted along the lacrimal passage by manufacturing the blocking end of the adhesive into a smooth hemispherical structure; by utilizing the utility model, the operation process can be simplified, the operation time can be shortened, and the burden of the operation cost of a patient can be reduced.

Claims (5)

1. The utility model provides a disposable lacrimal passage unblocked pipe, includes hollow silica gel pipe and silica gel strip, its characterized in that: the smooth lacrimal passage tube comprises two sections of hollow silicone tubes with the same length, each section of hollow silicone tube comprises a hollow tube part and a guide needle part, two ends of a silicone strip are respectively connected with the end parts of the guide needle parts of the two sections of hollow silicone tubes in an adhesive bonding mode, guide needle holes are formed in the same positions of the hollow tube parts of the two sections of silicone tubes, the other ends of the two sections of silicone tubes are adhesive plugging ends, and the adhesive plugging ends are of smooth hemispherical structures.

2. A disposable lacrimal passage as set forth in claim 1, wherein: the hollow pipe part and the guide needle part are bounded by guide needle holes, wherein the distance from the end part of the hollow pipe part of the silica gel hollow pipe to the guide needle holes is 24-26mm, and the length of the guide needle part of the silica gel hollow pipe is 5-7mm.

3. A disposable lacrimal passage as set forth in claim 1, wherein: the length of the silica gel strip connected between the end parts of the guide needle parts of the two sections of hollow silica gel pipes with the same length is 24-26 mm.

4. A disposable lacrimal passage as set forth in claim 1, wherein: the inner diameter of the two hollow silica gel pipes with the same length is 0.55mm plus or minus 0.02, and the outer diameter is 1.03mm plus or minus 0.02.

5. A disposable lacrimal passage as set forth in claim 1, wherein: the total length of the silica gel strip is 24-26mm, the diameter of the silica gel strip is 0.55mm plus or minus 0.02, the middle of the silica gel strip is marked with middle marks, and the length of the matched guide pin is 85-87 mm.