CN111685931A

CN111685931A - Lacrimal passage device

Info

Publication number: CN111685931A
Application number: CN202010470069.6A
Authority: CN
Inventors: 郭少成; 周辉辉; 杨习锋; 曾晨光; 丁雪玲
Original assignee: Guangzhou Sun Shing Biotech Co ltd
Current assignee: Guangzhou Sun Shing Biotech Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-22

Abstract

The invention solves the problems that the prior lacrimal passage dredging device/artificial lacrimal passage taking-out device has uniform outer diameter and can achieve the purpose by adjusting the angle for a plurality of times when in use, and provides a lacrimal passage device which is provided with a double-layer pipe and can be deformed and protruded, comprising: and (3) probe: comprises a probe first end and a probe second end; sheathing canal: comprises a first end of a sheath tube, a second end of the sheath tube and a deformation part; a sheath tube handle: comprises a bulge connected with the sheath tube; a probe telescopic handle: comprises a limiting device connected with the probe; the diameter of the probe is smaller than that of the sheath tube and is arranged in the sheath tube, the first end of the probe is fixedly connected with the first end of the sheath tube to form a fixed part, and the fixed part is close to the deformation part; during operating condition, deformation portion follow sheath pipe perpendicular outside outstanding, this moment, probe telescopic handle relative with sheath pipe handle back-up, stop device pass through the arch block and ensure stably.

Description

Lacrimal passage device

Technical Field

The invention relates to the field of medical instruments, in particular to a lacrimal passage device.

Background

Stenosis or obstruction of the lacrimal passage is a common clinical condition, manifested as epiphora. The usual treatment is regular tear duct clearing or placement of an artificial tear duct.

The artificial lacrimal passage is a hollow tubular structure, is very simple to put in, can be directly put in through the punctum, over time, however, artificial lacrimal passages may suffer from life-time or re-occlusion problems, therefore, the lacrimal probe needs to be taken out for replacement, and the current replacement adopts a clinically conventional lacrimal probe, but the biggest problem of the lacrimal probe is that the diameter of the outer diameter is uniform, and the inventor finds that, it is primarily limited by the size of the entrance to the punctum, which is much wider than the probe in the posterior ramus duct into the lachrymal sac, which poses a problem, when the lacrimal passage is dredged or the middle opening of the artificial lacrimal passage is found, the posture of the probe needs to be repeatedly adjusted in a wider space by the smaller diameter of the probe, the pain of a patient is often increased in the process, and the injury to the wall of the nasolacrimal duct is easily caused.

Disclosure of Invention

The invention solves the problems that the prior lacrimal passage dredging device/artificial lacrimal passage taking-out device has uniform outer diameter and can achieve the purpose by adjusting the angle for a plurality of times when in use, and provides a lacrimal passage device which is provided with a double-layer pipe and can deform and bulge.

The invention provides a lacrimal passage device, which is characterized by comprising:

and (3) probe: the probe comprises a probe first end and a probe second end, wherein the end of the probe first end is spherical;

sheathing canal: comprises a first end of a sheath tube, a second end of the sheath tube and a deformation part;

a sheath tube handle: comprises a bulge connected with the sheath tube;

a probe telescopic handle: comprises a limiting device connected with the probe;

the diameter of the probe is smaller than that of the sheath and is arranged in the sheath, the end head of the first end of the probe protrudes out of the first end of the sheath, the first end of the probe and the first end of the sheath are fixedly connected to form a fixing part, and the fixing part is close to the deformation part; during operating condition, deformation portion follow sheath pipe perpendicular outside outstanding, this moment, probe telescopic handle relative with sheath pipe handle back-up, stop device pass through the arch block and ensure stably.

Furthermore, the two bulges are respectively positioned at two sides of the sheath tube handle.

Furthermore, the diameter of the outer diameter of the sheath tube is less than or equal to 1.5 mm.

Furthermore, the probe is made of stainless steel.

Further, the material of the sheath tube comprises: PEBAX, PA, PU, PVC.

Furthermore, the sheath tube handle and the probe telescopic handle are manufactured by an injection molding process.

Further, uses of the lacrimal apparatus include: dredging lacrimal passage foreign matter, and taking out artificial nasolacrimal duct.

The invention has the beneficial effects that: as an artificial nasolacrimal duct taking-out device, the artificial nasolacrimal duct taking-out device adapts to the anatomical characteristics of the nasolacrimal duct, and a front end part capable of being supported is added under the form of a conventional lacrimal probe. The sheath deformation portion effects a change in the outer diameter of the probe. The probe is inserted into the punctum in a normal state, the outer diameter of the sheath tube is uniform, the surface is smooth, and the smooth head of the probe is beneficial to the probe to enter the wide part of the nasolacrimal duct through the punctum. The probe telescopic handle is controlled to withdraw the probe and drive the deformable part of the sheath tube to form a radial outward bulge. The protrusion increases the outer diameter of the sheath in a local range to better cover the wide space inside the nasolacrimal duct. The probe with the characteristic is more convenient in the process of searching the artificial nasolacrimal duct and pushing the artificial nasolacrimal duct downwards out of the nasolacrimal duct, greatly improves the accuracy, reduces the medical technical requirements and shortens the operation time. Meanwhile, the probe has the characteristic of changing the diameter of the head, so that the probe can be also suitable for the conventional nasolacrimal duct probing operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of the lacrimal apparatus of the present invention in a normal state;

fig. 2 is a schematic view of the lacrimal apparatus of the present invention in an operational state.

Description of specific symbols:

1-a probe; 2-sheath tube; 3-sheath handle; 4-probe telescopic handle; 5-bulge; 6-a limiting device; 7-deformation part.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of the present invention.

Example 1:

the lacrimal apparatus of this embodiment is composed of four parts, which are:

(1) a first end of the probe 1 is polished into a smooth spherical shape;

(2) sheath 2, the diameter is at most no more than 1.5mm, and is slightly bigger than the diameter of probe 1, and probe 1 is installed in the inside of sheath 2 and the globular end of the first end of probe 1 is outstanding outside sheath 2, and the inside and outside smooth surface of sheath, and sheath and probe are together fixed in the position that is close to the first end of probe, and fixed part is close to the deformation portion 7 of a predetermined form, and deformation portion 7 is outwards protruding perpendicularly along sheath 2 when taking place the deformation.

(3) Sheath pipe handle 3, sheath pipe handle 3 are in the same place with sheath pipe 2 links to each other, also are the handle that grips simultaneously, have two stop device 6 on the sheath pipe handle 3.

(4) Probe telescopic handle 4, probe telescopic handle 4 links together with probe 1, has two archs 5 on the probe telescopic handle 4 simultaneously, and protruding 5's effect is used for blocking stop device 6.

When the sheath tube is used, the probe 1 is retracted by operating the probe telescopic handle 4 under the state shown in figure 1 and the front end of the sheath tube 2 is fixed together, so that the deformation part 7 of the sheath tube 2 is deformed by retracting the probe 1, the diameter is enlarged, and when the sheath tube is expanded to the maximum, the limiting device 6 on the sheath tube handle 3 is just clamped by the two bulges 5 at the two sides of the probe telescopic handle 4; when the lacrimal passage device is withdrawn, the probe telescopic handle 4 is pushed to drive the probe to move forwards, so that the deformed part 7 can be withdrawn smoothly after being restored.

The sheath 2 in this embodiment is made of PEBAX, the probe 1 is made of stainless steel, and the sheath handle 3 and the probe telescopic handle 4 are formed by a mold design and an injection molding process.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A lacrimal apparatus, comprising:

a sheath tube handle: comprises a bulge connected with the sheath tube;

2. The lacrimal apparatus of claim 1, wherein there are two of the protrusions, each of the two protrusions being located on either side of the sheath handle.

3. The lacrimal apparatus of claim 1, wherein an outer diameter of the sheath is less than or equal to 1.5 mm.

4. The lacrimal apparatus of claim 1, wherein the probe is made of stainless steel.

5. The lacrimal apparatus of claim 1, wherein the sheath comprises: PEBAX, PA, PU, PVC.

6. The lacrimal apparatus of claim 1, wherein the sheath handle and the probe telescoping handle are formed by an injection molding process.

7. The lacrimal apparatus of claim 1, wherein the use of the lacrimal apparatus comprises: dredging lacrimal passage foreign matter, and taking out artificial nasolacrimal duct.