CN102319146B - Lacrimal passage tube - Google Patents

Abstract

The invention relates to a lacrimal tube for eyes, which comprises a tube body, a needle core and a needle core inlet arranged on the tube body; the needle core includes a liquid injection port and a liquid outlet hole; the needle core extends from the needle core inlet into the tube body; the tube body is also provided with a side hole near the liquid outlet hole of the needle core; the liquid injection port of the needle core is exposed outside the tube body. The invention provides a lacrimal duct catheter which is safe, reliable, convenient to operate and widely used.

Description

a lacrimal tube

technical field

The invention belongs to the field of medical devices, and relates to a tube body, in particular to a lacrimal tube for eyes.

Background technique

At present, when performing operations related to lacrimal duct stenosis or lacrimal canaliculus rupture, a special tube body is often required for auxiliary cooperation, and the main body of the tube body adopts a spinal anesthesia tube. Then insert the needle core (that is, a commonly used syringe needle) with a liquid outlet hole at the end into it, and perfuse it with liquid, and inject the liquid into the lacrimal duct through the hole made. It is time-consuming and labor-intensive to make directly on-site during the operation, and it is very inconvenient to use.

Contents of the invention

In order to solve the above-mentioned technical problems in the background technology, the present invention provides a lacrimal catheter that is safe, reliable, easy to operate and widely used.

The technical solution of the present invention is: the present invention provides a lacrimal cannula, which is special in that: the lacrimal cannula includes a tube body, a needle core and a needle core inlet arranged on the tube body; The needle core includes a liquid injection port and a liquid outlet hole; the needle core extends into the tube body from the needle core inlet; the tube body is also provided with a side hole near the needle core liquid outlet hole; the needle core liquid injection port exposed on the outside of the tube body.

The above-mentioned lacrimal duct tube is closed at one end or at both ends.

The lacrimal cannula also includes a locking valve arranged on the needle core for locking the liquid injection port of the needle core.

One end of the needle core containing the liquid outlet hole is blunt.

There are one or more needle core inlets.

When there are multiple needle core inlets, the lacrimal tube also includes a second needle core, and the second needle core and the needle core are symmetrically arranged inside the tube body.

Above-mentioned tube body is spinal anesthesia tube.

The material of the needle core is stainless steel, rubber tube or medical plastics.

The advantages of the present invention are:

The present invention improves the traditional on-site auxiliary tube into a sterile lacrimal tube that can be used directly after opening the package, which can be safely and reliably used on patients; The needle core with the liquid outlet hole is directly inserted, and one or both ends of the tube body have side holes, and the liquid is poured through the exposed needle core water inlet, which is very convenient to use. Thirdly, the tubular body can be provided with needle cores at one or both ends, which is more convenient for medical workers, shortens the operation time, and simplifies the operation process.

Description of drawings

Fig. 1 is the structural representation of the lacrimal duct catheter provided by the present invention;

in:

1-tube body; 2-side hole; 3-needle core; 4-needle core inlet; 5-lock valve; 6-liquid injection port; 7-liquid outlet hole.

Detailed ways

Referring to Fig. 1, the present invention provides a lacrimal cannula, which includes a tube body 1 with one end closed or both ends closed, one or more needle core inlets 4 and needle cores arranged on the tube body 1 3. The needle core 3 includes a liquid injection port 6 and a liquid outlet hole 7; the needle core 3 extends into the tube body 1 from the needle core inlet 4; the tube body 1 is also provided with a side hole near the liquid outlet hole 7 of the needle core 3 2. The liquid injection port 6 of the needle core 3 is exposed on the outside of the tube body 1. The purpose of setting one or more needle core inlets 4 is to make the length of the lacrimal tube can be adjusted. According to the needs of different conditions, the needle core 3 can be The different needle core inlets 4 are directly inserted into the tube body 1 for operation, and there is no need to perform pore-making operation on the tube body 1 again.

When the present invention is in use, liquid is poured into the liquid injection port on the needle core 3, and enters the inside of the tube body 1 through the liquid outlet hole 7 of the needle core 3. When the liquid is full or half full of the tube body 1, due to the The pressure makes the liquid inside the tube body 1 spray out from the side hole 2 provided on the tube body 1 .

The lacrimal cannula also includes a locking valve 5 arranged on the needle core 3 for locking the liquid injection port 6 of the needle core 3. The function of the locking valve 5 is to control the liquid passing through the liquid injection port 6 in its inside, so that it is not easy to flow out.

In order to ensure the absolute safety of the tube body 1, the end of the needle core 3 containing the liquid outlet hole 7 is deliberately set to be blunt, so that the needle core 3 can be quickly and conveniently slid to the desired position.

In order to facilitate simultaneous operations on two lacrimal canals, the present invention also improves the needle core 3 of the lacrimal duct tube. In addition to the above-mentioned needle core 3, the present invention also includes a second needle core, which is connected with the The needle core 3 is arranged symmetrically inside the tube body 1 .

Regardless of the above embodiments, the material of the tube body 1 can be a commonly used spinal anesthesia tube or an infusion tube with a very fine caliber. The material for needle core can be stainless steel, rubber tube or medical plastics.

Because the selected materials of the present invention are all medical and sterilizable, the present invention will not cause various harms to the human body during use and is very safe.

Claims (6)

1. Lacrimal passage tube is characterized in that: described Lacrimal passage tube comprises body, nook closing member and is arranged on nook closing member entrance on the body; Described nook closing member comprises liquid injection port and liquid outlet; Described nook closing member stretches into the body from the nook closing member entrance; Described body also is provided with side opening near the position of nook closing member liquid outlet; Described nook closing member liquid injection port is exposed at body outside; Described nook closing member entrance is a plurality of; Described Lacrimal passage tube also comprises the second nook closing member, and described the second nook closing member and nook closing member are symmetricly set on body inside.

2. Lacrimal passage tube according to claim 1 is characterized in that: described Lacrimal passage tube is end sealing or closed at both ends.

3. Lacrimal passage tube according to claim 2 is characterized in that: described Lacrimal passage tube also comprises and is arranged on the lock valve that is used for locking nook closing member liquid injection port on the nook closing member.

4. Lacrimal passage tube according to claim 3, it is characterized in that: an end that contains liquid outlet on the described nook closing member is blunt circle.

5. according to claim 1 and 2 or 3 or 4 described Lacrimal passage tubes, it is characterized in that: described body is the lumbar anesthesia pipe.

6. Lacrimal passage tube according to claim 5, it is characterized in that: the material of described nook closing member is rustless steel, rubber or medical plastics.

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