CN203244667U - Dacryocyst catheter - Google Patents

Abstract

The utility model relates to a dacryocyst catheter. A catheter body is a flexible medical vertebral pipe with a evenly successively-decreased caliber; a total length of the catheter matches with a distance from a lacrimal passage entrance of patients to a canalis nasolacrimalis outlet; an inner diameter of the catheter lacrimal passage entrance is 1 to 2 mm; an inner diameter of the canalis nasolacrimalis outlet is 0.5 to 1 mm; scales are set on an external wall of the catheter; drainage holes are arranged on a side wall of the catheter in an interlaced way; the dacryocyst catheter is characterized by good design, successively-decreased external diameter and catering to lacrimal passage anatomical structure; scales are set on the external wall of the catheter; drainage holes are arranged on a side wall of the catheter, so that not only secreta can be washed and cleaned but medicine with anti-inflammation or lacrimal passage mucous membrane repairing function can also be injected; and medical operation is easy. During treatment, the lacrimal passage catheter arranged in lacrimal passage of patients causes no poisonous effect; pain in operation is avoided; and lacrimal passage becomes smooth when the catheter is removed after cure.

Description

A kind of lachrymal sac conduit

Technical field

This utility model belongs to medical equipment, is specifically related to a kind of lachrymal sac conduit.

Background technology

Lacrimal duct abstruction and chronic dacryocystitis belong to the ophthalmology common frdquently encountered disease.People prevent and treat method in the urgent need to the reliable and convenient and practical non-operation of a kind of curative effect.

There are many deficiencies in lacrimal passage conduit of the prior art (or sleeve pipe), or because conduit more firmly can not be crooked, or because of the narrow inadequate drainage of tube chamber, as or the tube wall atresia, injection suction inconvenience etc., clinical practice is limited or late result is not good enough.

The utility model content

Goal of the invention of the present utility model provides follow-on a kind of lachrymal sac conduit.

The purpose of this utility model is implemented by following technical solution:

Develop a kind of lachrymal sac conduit, comprise catheter body, it is characterized in that:

Described catheter body is flexible medical vertebra shape pipe, and uniform diameter is successively decreased;

Described catheter body total length and the import of patient's lacrimal passage are to the length coupling of nasolacrimal duct outlet;

Described catheter body lacrimal passage entrance point internal diameter 1～2mm, nasolacrimal duct port of export internal diameter 0.5～1mm;

Described catheter body outer wall arranges scale marker.

Above-mentioned a kind of lachrymal sac conduit is characterized in that the sidewall staggering of described catheter body arranges conduction hole.

The application's advantage is:

1. rational in infrastructure, external diameter successively decreases gradually, complies with lacrimal passage anatomical structure characteristics; Conduit outer wall arranges scale and indicates; The sidewall of conduit arranges conduction hole, and not only flushable secretions but also can inject antiinflammatory or repair the medicine of lacrimal passage mucosa is convenient to medical care precess.

2. in the course for the treatment of in this lacrimal passage catheter retaining patient lacrimal passage, have no side effect no pain in the art;

3. unobstructed lacrimal passage after clinical cure takes out.

Description of drawings

Fig. 1 is this utility model structure for amplifying sketch map:

Fig. 2 is the local structure for amplifying sketch map of the A section of Fig. 1.

The specific embodiment

Further set forth this utility model below in conjunction with drawings and Examples.

Among Fig. 1,1 lachrymal sac catheter body; 2 lachrymal sac catheter body lacrimal passage mouth ends: the 3 nasolacrimal duct ports of export; 4 catheter body outer walls arrange scale marker; The conduction hole of 5 lachrymal sac catheter body sidewalls.

This utility model material is flexible medical material type (for example, medical silica-gel or medical TEP), only need transform corresponding mould and can make, and is easy to utilize.

Use for example: can flood in anesthesia liquid with treatment place local anaesthesia or with this lachrymal sac conduit first and use a moment, with lacrimal dilator the lacrimal passage entrance is enlarged, select needle end to be blunt conical lacrimal probe and enter lacrimal passage through lacrimal point, arrive the nasolacrimal duct outlet by lachrymal sac, withdraw from probe and introduce this utility model, lachrymal sac catheter body lacrimal passage mouth end 2 is kept somewhere the lacrimal passage mouth, and the nasolacrimal duct port of export to inferior nasal meatus stretches out, and is beneficial to the drain of the interior exudate of lachrymal sac and tear.

Use this utility model treatment obstruction of naso lacrimal duct to merge the obstructed lacrimal passage of chronic dacryocystitis, do not do skin incision, preventing from scar, operating time is short, without wound, enjoys doctor and patient's favor.

Through clinic trial, can finish smoothly the indwelling art in several minutes, and easy, the safety of performing the operation, reached the goal of the invention of expecting.

Claims (2)

1. a lachrymal sac conduit comprises catheter body, it is characterized in that:

Described catheter body is flexible medical vertebra shape pipe, and uniform diameter is successively decreased;

Described catheter body total length and the import of patient's lacrimal passage are to the length coupling of nasolacrimal duct outlet;

Described catheter body lacrimal passage entrance point internal diameter 1～2mm, nasolacrimal duct port of export internal diameter 0.5～1mm;

Described catheter body outer wall arranges scale marker.

2. according to a kind of lachrymal sac conduit claimed in claim 1, it is characterized in that the sidewall staggering of described catheter body arranges conduction hole.

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