Lacrimal duct soft dilator

Abstract

The utility model provides a lacrimal duct soft probing dilator, comprising a hose and a probing needle core; the hose has a preset hardness, the hose has a first end and a second end, and an inlet is arranged in the middle of the hose; the front end of the probing needle core penetrates into the hose through the inlet, and there is a preset distance between the front end of the probing needle core and the first end of the hose. A technical effect of the utility model is that the design is reasonable and applicable to all operations of ordinary metal probing needles. The advantage is that for children with congenital nasolacrimal duct obstruction, the lacrimal duct can be directly probed without obvious damage to the lacrimal duct. At the same time, for patients with abnormal lacrimal duct course, the lacrimal duct direction of the patient can be adaptively adjusted when the lacrimal duct is pushed into the lacrimal duct, so as to better protect the patient's lacrimal duct. The lacrimal duct soft probing dilator can be bent and shaped to a certain angle, which is suitable for probing patients with different lacrimal duct courses. At the same time, it has a certain expansion effect on the lacrimal duct. It will be easier to insert the artificial lacrimal duct after being placed for a few minutes. The traction line can also be inserted into the lacrimal duct to facilitate retrograde catheterization.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a lacrimal duct soft probing and dilator. Background Art

[0002] The use of lacrimal duct sounding needles is very frequent and very important in the treatment of lacrimal duct obstruction. However, the lacrimal duct sounding needles in the prior art have their limitations. For example, the lacrimal duct sounding needles cannot be bent at will during operation, and are prone to forming false channels and other injuries. Especially when some nasolacrimal ducts have abnormal courses, ordinary lacrimal duct sounding needles cannot be inserted. Such patients need a probing tool that is flexible and has a certain hardness.

[0003] Therefore, there is an urgent need for a lacrimal duct soft probing dilator to solve the technical problems existing in the lacrimal duct probing needle in the prior art. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art and provides a new technical solution for a lacrimal duct soft probing dilator.

[0005] According to one aspect of the present application, a lacrimal duct soft probing dilator is provided, comprising a hose and a probing needle core;

[0006] The hose has a preset hardness, the hose has a first end and a second end, and an inlet is provided in the middle of the hose;

[0007] The front end of the probing needle core penetrates into the hose through the inlet, and there is a preset distance between the front end of the probing needle core and the first end of the hose.

[0008] Optionally, the outer diameter of the hose is 1.1 mm.

[0009] Optionally, the diameter of the probe needle core is 0.5 mm.

[0010] Optionally, the lacrimal duct soft probing dilator further comprises a handle;

[0011] The handle is fixed to the rear end of the probing needle core.

[0012] Optionally, a cleaning hole is provided on the tube wall of the hose, the cleaning hole is close to the first end of the hose, and the cleaning hole is communicated with the tube cavity of the hose.

[0013] Optionally, the distance between the cleaning hole and the first end of the hose is 2 mm-3 mm.

[0014] Optionally, the hose is provided with a threading hole, which is close to the second end of the hose and passes through the hose.

[0015] Optionally, the distance between the threading hole and the second end of the hose is 2 mm-3 mm.

[0016] Optionally, the end surface of the first end of the hose is a hemispherical surface.

[0017] Optionally, the probe needle core is bent to form a preset angle.

[0018] A technical effect of this application is:

[0019] In an embodiment of the present application, the hose has a preset hardness, the hose has a first end and a second end, and an inlet is provided in the middle of the hose; the front end of the probe needle core penetrates into the hose from the inlet, and there is a preset distance between the front end of the probe needle core and the first end of the hose.

[0020] Therefore, the lacrimal duct soft sounding dilator is reasonably designed. Through the cooperation of the hose and the sounding needle core, it can be smoothly pushed into the lacrimal duct. It can directly sound the lacrimal duct in children with congenital nasolacrimal duct obstruction without obvious damage to the lacrimal duct. It can better protect the patient's lacrimal duct and has a higher safety.

[0021] In addition, when the tear duct of some patients has abnormal course, since there is a preset distance between the front end of the probe needle core and the first end of the hose, and the hose has preset hardness and flexibility, it can adapt to the direction of the patient's tear duct, thereby reducing the possibility of iatrogenic injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a lacrimal duct soft probing and dilator according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the enlarged structure of a cleaning hole of a lacrimal duct soft probing dilator according to one embodiment of the utility model;

[0024] Figure 3 The present invention is a schematic diagram of an enlarged structure of a threading hole of a lacrimal duct soft probing dilator according to an embodiment of the present invention.

[0025] In the figure: 1, hose; 11, inlet; 12, first end of the hose; 13, second end of the hose; 2, probe needle core; 3, handle; 41, cleaning hole; 42, threading hole. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0027] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0028] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] According to the first aspect of the present application, see Figure 1 , provides a lacrimal duct soft probing dilator, comprising a hose 1 and a probing needle core 2;

[0032] The hose 1 has a preset hardness, the hose 1 has a first end and a second end, and an inlet 11 is provided in the middle of the hose 1;

[0033] The front end of the probing needle core 2 penetrates into the hose 1 through the inlet 11 , and there is a preset distance between the front end of the probing needle core 2 and the first end 12 of the hose.

[0034] In the embodiment of the present application, the lacrimal duct soft probing dilator is reasonably designed. Through the cooperation of the hose 1 and the probing needle core 2, it can be smoothly pushed into the lacrimal duct, and is suitable for all operations of ordinary metal probing needles. The advantage is that it can directly probable the lacrimal duct for children with congenital nasolacrimal duct obstruction without obvious damage to the lacrimal duct, and can better protect the patient's lacrimal duct, with high safety. At the same time, the lacrimal duct soft probing dilator can be bent and shaped to a certain angle, suitable for probing patients with different lacrimal ducts, and has a certain expansion effect in the lacrimal duct. It will be easier to insert the artificial tear duct after placing it for a few minutes. It can also place the traction line into the lacrimal duct to facilitate retrograde catheterization.

[0035] In addition, when the lacrimal duct of some patients has abnormal course, since there is a preset distance between the front end of the probe needle core 2 and the first end 12 of the hose, and the hose 1 has both preset hardness and flexibility, it can adapt to the direction of the patient's lacrimal duct, thereby reducing the possibility of iatrogenic injury.

[0036] Optionally, the outer diameter of the hose 1 is 1.1 mm, which helps to ensure that the hose 1 and the probing needle core 2 are smoothly and safely pushed into the lacrimal duct to achieve probing of the lacrimal duct.

[0037] Optionally, the diameter of the probing needle core 2 is 0.5 mm, so that the hose 1 and the probing needle core 2 can be smoothly pushed into the lacrimal duct after being matched, thereby achieving the probing effect of the lacrimal duct.

[0038] Optionally, the lacrimal duct soft probing and dilator further comprises a handle 3;

[0039] The handle 3 is fixed to the rear end of the probing needle core 2 .

[0040] In the above embodiment, the handle 3 can be used to better implement the lacrimal duct probing operation of the patient, and the operation is convenient.

[0041] Alternatively, see Figure 2 A cleaning hole 41 is provided on the tube wall of the hose 1 , the cleaning hole 41 is close to the first end 12 of the hose, and the cleaning hole 41 is communicated with the tube cavity of the hose 1 .

[0042] In the above embodiment, the cleaning hole 41 can be used for flushing after the lacrimal duct is unblocked, so as to better remove harmful substances such as inflammatory secretions and blood in the lacrimal duct, thereby ensuring the unblocking effect of the lacrimal duct.

[0043] Optionally, the distance between the cleaning hole 41 and the first end 12 of the hose is 2mm-3mm. This makes the distance between the cleaning hole 41 and the first end 12 of the hose more appropriate, which is convenient for fully flushing the lacrimal duct after the lacrimal duct is probed, and better ensures the flushing effect.

[0044] Alternatively, see Figure 3 The hose 1 is provided with a threading hole 42 , and the threading hole 42 is close to the second end 13 of the hose 1 and passes through the hose 1 .

[0045] In the above embodiment, the threading hole 42 can be used to thread a silk thread, and the hose 1 is hooked out from the nasal cavity, and the silk thread can be brought into the lacrimal duct and led out from the inferior nasal meatus, which can be used for retrograde catheterization surgery and is easy to operate.

[0046] It should be noted that, first, the silk thread is connected to the second end 13 of the hose 1, and is led out from the tear duct through the nasal cavity through the hose 1; then, the silk thread led out through the nasal cavity is connected to the artificial tear duct through the traction wire; finally, the traction wire is pulled out from the nasal cavity to the eye through the silk thread, so as to pull the artificial tear duct into the tear duct through the traction wire, so as to successfully implant the artificial tear duct in the tear duct.

[0047] Optionally, the distance between the threading hole 42 and the second end 13 of the hose 1 is 2 mm to 3 mm. This makes the distance between the threading hole 42 and the second end 13 of the hose 1 more appropriate, so that the hose 1 can be smoothly hooked out of the nasal cavity and the silk thread can be brought into the lacrimal duct to ensure the feasibility of the retrograde catheterization surgery.

[0048] Optionally, the probing needle core 2 has a preset toughness. Since the probing needle core 2 has a certain toughness, it can probing a lacrimal duct with a heavy obstruction.

[0049] Optionally, the probing needle core 2 is bent to form a preset angle, which enables the probing needle core 2 to be applicable to some patients with abnormal lacrimal duct course, and has a wide application range.

[0050] Optionally, the end surface of the first end 12 of the hose is a hemispherical surface, so that the hose 1 can avoid damaging the lacrimal duct during the process of being pushed into the lacrimal duct, thereby better protecting the lacrimal duct.

[0051] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A lacrimal duct soft dilator, characterized in that: Including hose and probe needle; The hose has a preset hardness, the hose has a first end and a second end, and an inlet is provided in the middle of the hose; The front end of the probing needle core penetrates into the hose through the inlet, and there is a preset distance between the front end of the probing needle core and the first end of the hose.

2. The lacrimal duct soft probing dilator according to claim 1, characterized in that: The outer diameter of the hose is 1.1 mm.

3. The lacrimal duct soft probing dilator according to claim 1, characterized in that: The diameter of the probe needle core is 0.5 mm.

4. The lacrimal duct soft probing dilator according to claim 1, characterized in that: Also includes a handle; The handle is fixed to the rear end of the probing needle core.

5. The lacrimal duct soft probing dilator according to claim 1, characterized in that: A cleaning hole is arranged on the tube wall of the hose, the cleaning hole is close to the first end of the hose, and the cleaning hole is communicated with the tube cavity of the hose.

6. The lacrimal duct soft probing dilator according to claim 5, characterized in that: The distance between the cleaning hole and the first end of the hose is 2 mm-3 mm.

7. The lacrimal duct soft probing dilator according to claim 1, characterized in that: The hose is provided with a threading hole, which is close to the second end of the hose and passes through the hose.

8. The lacrimal duct soft probing dilator according to claim 7, characterized in that: The distance between the threading hole and the second end of the hose is 2mm-3mm.

9. The lacrimal duct soft probing dilator according to claim 1, characterized in that: The end surface of the first end of the hose is a hemispherical surface.

10. The lacrimal duct soft probing dilator according to claim 1, characterized in that: The probe needle core is bent to form a preset angle.

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