A lacrimal canaliculus stump detection device

Abstract

The utility model provides a kind of lacrimal canaliculus broken end detection device, including the rigid outer tube of light transmission, the one end of outer tube is bent and is formed with U type head, the end of U type head is detachably installed with end cap, and end cap end internal position is installed with light head;Optical fiber is installed in the inside of outer tube, and optical fiber passes through U type head and end portion extends to end cap inside direction, and the bright light emitted by optical fiber can be irradiated on light head;The utility model design structure is reasonable, using the metal outer tube of fixed appearance can be conveniently stretched into tear canaliculus, and through U type head structure, end cap and the mode of optical fiber lighting, tear canaliculus broken end of tear sac end is quickly found, and the operating requirement of different habit population is satisfied by the handle assembly of angle that can be flexibly adjusted, with the advantages of convenient operation, accurate positioning, low damage rate.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a lacrimal canaliculus end detection device. Background Technology

[0002] Lacrimal canaliculus rupture is a common trauma encountered by ophthalmologists. Clinical treatment primarily involves locating both severed ends, anastomosing them, and implanting a circular lacrimal duct prosthesis. Locating the severed ends is the first and most crucial step in this process. Locating the punctal end is relatively easy, requiring only a standard lacrimal duct irrigation needle, but locating the dacryocystorhinostomy end presents challenges. Current methods for locating lacrimal canaliculus ends are either time-consuming and highly dependent on the surgeon's skill and experience, resulting in a low success rate; or they are surgically complex, expensive, and prone to causing secondary damage to the patient.

[0003] For example, Chinese utility model patent application number CN201921601850.1 discloses a lacrimal canaliculus-connected optical fiber, including an outer tube made of a light-transmitting material, with a closed head and an open tail. Inside the outer tube are a traction wire and an optical fiber body. One end of the optical fiber body inside the outer tube has a light-emitting head, and the tail of the optical fiber body extends out of the outer tube and is connected to a light source. Although this solution uses optical fiber to observe the position of the outer tube end, its operation requires the use of an external magnetic material to attract the permanent magnet guide head at the end of the outer tube. This necessitates designing the outer tube to be made of a soft and flexible material. However, this material, due to its softness, presents difficulties during insertion into the lacrimal canaliculus and is prone to causing damage. Furthermore, most existing detection devices for locating lacrimal canaliculus fractures are needle-like, leading to inconvenience during use. Utility Model Content

[0004] This invention provides a lacrimal canaliculus end-severance detection device. It uses a rigid outer tube with a fixed shape, which can be easily inserted into the lacrimal canaliculus. The device quickly locates the lacrimal canaliculus end at the lacrimal sac end through a U-shaped head structure, end cap, and fiber optic illumination. The device also has a handle assembly with adjustable angle to meet the operating needs of different users. It has the advantages of convenient operation, accurate positioning, and low damage rate.

[0005] The technical solution adopted by this utility model is: a lacrimal canaliculus end detection device, including a rigid outer tube that can transmit light, one end of the outer tube is bent to form a U-shaped head, an end cap is detachably installed at the end of the U-shaped head, and a light-emitting head is installed inside the end of the end cap; an optical fiber is installed inside the outer tube, the optical fiber passes through the U-shaped head and extends towards the inside of the end cap, and the light emitted by the optical fiber can illuminate the light-emitting head.

[0006] The outer tube is connected to a fixed base at the end away from the U-shaped head. An adjustable handle assembly is connected to the outside of the fixed base. By adjusting the rotation angle of the handle assembly, it is easy for people with different operating habits to hold the detection device stably.

[0007] The handle assembly includes a rotating base disposed at the end of a fixed base and capable of rotating around the fixed base, the rotation center line of the rotating base being parallel to the center line of the exterior; it also includes a rotating handle capable of rotating relative to the rotating base, the rotation center line of the rotating handle being perpendicular to the rotation center line of the rotating base.

[0008] The mounting base is equipped with a light source, and the light emitted by the light source can be transmitted to the end cap position through optical fiber.

[0009] The light source is an LED lamp.

[0010] The end cap is fitted onto the end of the U-shaped head.

[0011] The end cap is secured at the end of the U-shaped head.

[0012] The end cap is installed at the end of the U-shaped head via a threaded connection.

[0013] The beneficial effects of this utility model are as follows: This utility model has a reasonable design structure. The fixed-shape metal outer tube makes it easy to insert into the lacrimal canaliculus. The U-shaped head structure, end cap, and fiber optic illumination are used to quickly locate the broken end of the lacrimal canaliculus at the lacrimal sac end. The handle assembly with adjustable angle can meet the operating needs of people with different habits. It has the advantages of convenient operation, accurate positioning, and low damage rate. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a partial enlarged view of the present invention.

[0015] in: 1. Outer tube; 2. U-shaped head; 3. End cap; 4. Light-emitting head; 5. Optical fiber; 6. Fixing base; 7. Rotating base; 8. Rotating handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] As shown in the figure, a lacrimal canaliculus end detection device includes a rigid outer tube 1 that is transparent to light. The rigid outer tube 1 is not flexible, which facilitates its smooth entry into the lacrimal canaliculus and makes it easy to operate. One end of the outer tube 1 is bent to form a U-shaped head 2, which is integrally formed with the outer tube. An end cap 3 is detachably installed at the end of the U-shaped head 2. The end cap 3 is made of the same material as the outer tube 1. A light-emitting head 4 is installed inside the end of the end cap 3. The light-emitting head 4 has high transparency, good light guiding performance, and mechanical strength. It is mainly used to ensure the effective transmission and diffusion of light. For example, it can be made of quartz glass, fluoride glass, etc. An optical fiber 5 is installed inside the outer tube 1. The optical fiber 5 passes through the U-shaped head 2 and extends towards the inside of the end cap 3. The light emitted by the optical fiber 5 can illuminate the light-emitting head 4.

[0018] The outer tube 1, at the end furthest from the U-shaped head 2, is connected to a fixed base 6. An adjustable handle assembly is connected to the outside of the fixed base 6. By adjusting the rotation angle of the handle assembly, it is convenient for personnel with different operating habits to hold the detection device stably. Specifically, the handle assembly includes a rotating base 7 located at the end of the fixed base 6 and capable of rotating around it. The rotating base 7 is rotatably connected to the fixed base 6 via a pin. After the rotating base 7 rotates to a suitable position, it is positioned by screw locking or by friction between it and the fixed base 6. The rotation center line of the rotating base 7 is parallel to the center line of the outer surface. It also includes a rotating handle 8 capable of rotating relative to the rotating base 7. Similarly, the rotating handle 8 can also be rotatably connected to the rotating base 7 via a pin connection, and can also be fixed relative to the rotating base 7 by screw locking or friction locking. The rotation center line of the rotating handle 8 is perpendicular to the rotation center line of the rotating base 7.

[0019] In actual operation, the positions of the rotating seat 7 and the rotating handle 8 can be adjusted according to the operator's left and right hand usage habits and the relative position between the operator and the patient, so as to adopt the best grip posture to hold the detection device, which can save physical strength and improve operating efficiency.

[0020] The mounting base 6 is equipped with a light source, and the light emitted by the light source can be transmitted to the end cap 3 through the optical fiber 5. Specifically, in this example, the light source is an LED light. In addition, the mounting base 6 also has a built-in rechargeable lithium battery for connecting with the light source and providing power.

[0021] The end cap 3 is sleeved on the end of the U-shaped head 2, or the end cap 3 is snapped onto the end of the U-shaped head 2, or the end cap 3 is installed on the end of the U-shaped head 2 by means of threaded connection. It is mainly used to select end caps 3 of different lengths according to different patients and different cut end positions, which is more flexible.

[0022] In practical use of the lacrimal canaliculus fragment detection device, taking the case of a fracture near the lacrimal sac end of the lower lacrimal canaliculus as an example, the lacrimal canaliculus at the lacrimal sac end is difficult to locate because it is retracted into the orbicularis oculi muscle. In this case, the detection device can be inserted into the upper lacrimal canaliculus from the upper lacrimal punctum, then through the lacrimal sac and common lacrimal duct, and finally out through the lacrimal sac end of the lower lacrimal canaliculus. During this process, the light emitted by the light source is irradiated onto the light-emitting head 4 through the optical fiber 5. By observing the position of the light emitted by the light-emitting head 4, the position where the outer tube 1 enters the lacrimal canaliculus can be determined, which also facilitates the location of the fracture end. It has the advantages of flexible operation, high accuracy, and low patient damage.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lacrimal canaliculus stump detection device, characterized in that, It includes a rigid outer tube (1) that can transmit light, one end of which is bent to form a U-shaped head (2), and an end cap (3) is detachably installed at the end of the U-shaped head (2). A light-emitting head (4) is installed inside the end of the end cap (3). An optical fiber (5) is installed inside the outer tube (1). The optical fiber (5) passes through the U-shaped head (2) and its end extends inward toward the end cap (3). The light emitted by the optical fiber (5) can illuminate the light-emitting head (4). The outer tube (1) is connected to a fixed base (6) at the end away from the U-shaped head (2). An angle-adjustable handle assembly is connected to the outside of the fixed base (6). By adjusting the rotation angle of the handle assembly, it is convenient for people with different operating habits to hold the detection device stably.

2. The lacrimal canaliculus rupture detection device according to claim 1, characterized in that, The handle assembly includes a rotating base (7) disposed at the end of the fixed base (6) and capable of rotating around the fixed base (6), the rotation center line of the rotating base (7) being parallel to the center line of the exterior; and a rotating handle (8) capable of rotating relative to the rotating base (7), the rotation center line of the rotating handle (8) being perpendicular to the rotation center line of the rotating base (7).

3. The lacrimal canaliculus rupture detection device according to claim 1, characterized in that, The fixture (6) is equipped with a light source, and the light emitted by the light source can be transmitted to the end cap (3) through the optical fiber (5).

4. The lacrimal canaliculus rupture detection device according to claim 3, characterized in that, The light source is an LED lamp.

5. The lacrimal canaliculus rupture detection device according to claim 1, characterized in that, The end cap (3) is fitted onto the end of the U-shaped head (2).

6. The lacrimal canaliculus rupture detection device according to claim 1, characterized in that, The end cap (3) is positioned at the end of the U-shaped head (2).

7. The lacrimal canaliculus rupture detection device according to claim 1, characterized in that, The end cap (3) is installed at the end of the U-shaped head (2) by means of a threaded connection.

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