Lacrimal point dilator with scales

Abstract

The utility model relates to the technical field of punctum dilators, and discloses a punctum dilator with scales, which comprises a handle, a cone and a connecting structure, an inner tube is fixedly mounted in the handle, the cone is detachably mounted at the end of the inner tube through the connecting structure, a limit tube sleeve is slidably arranged in the handle, and the limit tube sleeve is detachably mounted at the end of the inner tube through the connecting structure. A communicating groove is formed in the top of the handle, the cone is sleeved with the limiting pipe sleeve, a connecting piece is fixedly installed at the end, away from the cone, of the limiting pipe sleeve, and the end, away from the limiting pipe sleeve, of the connecting piece extends out of the communicating groove. And the friction force between the friction plate and the friction pipe can provide a damping sense when the anti-skid grip is pulled to adjust the position of the limiting pipe sleeve, so that the situation that the limiting pipe sleeve cannot be adjusted in place for many times due to hand shaking during adjustment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lacrimal punctum dilators, in particular to a graduated lacrimal punctum dilator. Background Technique

[0002] The lacrimal punctum dilator is a commonly used medical instrument in ophthalmic medical treatment. When the lacrimal punctum dilator is used to dilate the lacrimal punctum, if the dilation is too small, the fibrous tissue ring around the lacrimal punctum will contract, causing the lacrimal punctum to return to its original state when the dilator is removed; if the lacrimal punctum is dilated too much, certain tissue damage will occur to the lacrimal punctum and it cannot return to its original state, or even a fissure will appear, affecting the drainage of tears. To solve the above problems, a limit sleeve is provided on some lacrimal punctum dilators, but the limit sleeve needs to be replaced during adjustment, and it is also easy to fall off the lacrimal punctum dilator and is likely to drop during carrying. Content of the Utility Model

[0003] The purpose of the utility model is to provide a graduated lacrimal punctum dilator to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A graduated lacrimal punctum dilator, including a handle, a cone, and a connection structure. An inner tube is fixedly installed inside the handle. The cone is detachably installed at the end of the inner tube through the connection structure. A limit tube sleeve is slidably arranged inside the handle. A communication groove is opened at the top of the handle. The limit tube sleeve is sleeved on the cone. A connection piece is fixedly installed at one end of the limit tube sleeve away from the cone. One end of the connection piece away from the limit tube sleeve extends out of the communication groove. A scale is arranged on the upper surface of the connection piece. An anti-slip grip is slidably sleeved on the outer wall of the handle. One end of the connection piece away from the limit tube sleeve is fixedly connected to the outer wall of the anti-slip grip.

[0005] Further, a magnifying glass is fixedly installed on the inner wall of the communication groove. The magnifying glass is located above the connection piece and at one end of the communication groove close to the limit tube sleeve.

[0006] Further, the connection structure includes an internal thread groove and a threaded tube. The internal thread groove is opened at the end of the inner tube. The threaded tube is fixedly installed at the end of the cone. The outer wall of the threaded tube is threadedly connected to the inner wall of the internal thread groove.

[0007] Further, two cones and two inner tubes are provided, and are respectively located at the left and right ends of the handle. The specifications of the two cones are different.

[0008] Further, a friction piece is fixedly installed at the bottom of the connection piece. A friction tube is fixedly sleeved on the outer wall of the inner tube. The lower surface of the friction piece is in contact with the outer surface of the friction tube.

[0009] Further, through holes are provided on the conical body, and a communication channel is provided in the conical body, the threaded pipe and the inner pipe. A liquid inlet pipe is fixedly installed at the bottom of the handle, and the top end of the liquid inlet pipe communicates with the inside of the communication channel.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. When it is necessary to increase the size of the lacrimal punctum dilation, just move the limit pipe sleeve to expose more of the conical body. Similarly, when it is necessary to reduce the size of the lacrimal punctum dilation, move the limit pipe sleeve to cover more of the conical body. The limit pipe sleeve and the anti-slip grip are connected by a connecting piece, so that the position of the limit pipe sleeve can be adjusted by pulling the anti-slip grip. A scale is provided on the connecting piece to display the cross-sectional radius of each part on the conical body, so that medical staff can intuitively see the maximum dilation size of the conical body at this time. Since the limit pipe sleeve is fixedly connected to the connecting piece and the connecting piece is connected to the anti-slip grip, the limit pipe sleeve will not fall off from the handle.

[0012] 2. Utilize the friction between the friction plate and the friction tube to ensure that when the limit pipe sleeve is pressed near the eye socket, the limit pipe sleeve will not retract into the handle under force. Moreover, the friction between the friction plate and the friction tube can also provide a damping feeling when pulling the anti-slip grip to adjust the position of the limit pipe sleeve, making it not easy to fail to adjust in place multiple times due to hand shaking during adjustment. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 of the present utility model Figure 1 is a schematic structural diagram of the right side view of the present utility model;

[0015] Figure 3 is a schematic structural diagram of the handle and the conical body of the present utility model;

[0016] Figure 4 of the present utility model Figure 3 is a schematic structural diagram of the exploded view of the present utility model;

[0017] Figure 5 of the present utility model Figure 1 is a schematic structural diagram of the front cross-sectional view of the present utility model;

[0018] Figure 6 of the present utility model Figure 1 is a schematic structural diagram of the exploded view of the present utility model.

[0019] In the figure: 1. Handle; 2. Cone; 3. Anti-slip grip; 4. Limit tube sleeve; 5. Connecting groove; 6. Inner tube; 7. Connecting structure; 701. Internal thread groove; 702. Threaded tube; 8. Through hole; 9. Connecting channel; 10. Liquid inlet tube; 11. Connecting piece; 12. Friction plate; 13. Friction tube; 14. Magnifying glass. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Please refer to Figures 1-6 , the present invention provides a technical solution: a graduated lacrimal punctum dilator, including a handle 1, a cone 2, and a connecting structure 7. An inner tube 6 is fixedly installed inside the handle 1. The cone 2 is detachably installed at the end of the inner tube 6 through the connecting structure 7. A limit tube sleeve 4 is slidably arranged inside the handle 1. A connecting groove 5 is opened at the top of the handle 1. The limit tube sleeve 4 is sleeved on the cone 2. A connecting piece 11 is fixedly installed at one end of the limit tube sleeve 4 away from the cone 2. One end of the connecting piece 11 away from the limit tube sleeve 4 extends out of the connecting groove 5. A scale is arranged on the upper surface of the connecting piece 11. An anti-slip grip 3 is slidably sleeved on the outer wall of the handle 1. One end of the connecting piece 11 away from the limit tube sleeve 4 is fixedly connected to the outer wall of the anti-slip grip 3. The length that the cone 2 can extend is adjusted by the limit tube sleeve 4. Utilizing the characteristics of the cone 2 itself, that is, when the cone 2 protrudes less, the thickest part that can be used to dilate the lacrimal punctum is limited, that is, the lacrimal punctum cannot be over-dilated. When it is necessary to increase the lacrimal punctum dilation size, move the limit tube sleeve 4 to expose more of the cone 2. Similarly, when it is necessary to reduce the lacrimal punctum dilation size, move the limit tube sleeve 4 to cover more of the cone 2. The limit tube sleeve 4 and the anti-slip grip 3 are connected through the connecting piece 11, that is, the position of the limit tube sleeve 4 can be adjusted by pulling the anti-slip grip 3. A scale is arranged on the connecting piece 11 to display the cross-sectional radius of each part on the cone 2, so that medical staff can intuitively see the maximum dilation size of the cone 2 at this time. Because the limit tube sleeve 4 is fixedly connected to the connecting piece 11, and the connecting piece 11 is connected to the anti-slip grip 3, the limit tube sleeve 4 will not fall off from the handle 1;

[0022] A magnifying glass 14 is fixedly installed on the inner wall of the connecting groove 5. The magnifying glass 14 is located above the connecting piece 11 and at one end of the connecting groove 5 close to the limit tube sleeve 4, and is used to magnify the scale on the connecting piece 11 to facilitate medical staff to read the scale;

[0023] The connecting structure 7 includes an internal thread groove 701 and a threaded pipe 702. The internal thread groove 701 is opened at the end of the inner pipe 6, and the threaded pipe 702 is fixedly installed at the end of the cone 2. The outer wall of the threaded pipe 702 is threadedly connected to the inner wall of the internal thread groove 701. Through the threaded connection of the internal thread groove 701 and the threaded pipe 702, the connection is quick and convenient.

[0024] There are two cones 2 and two inner pipes 6, which are respectively located at the left and right ends of the handle 1. The specifications of the two cones 2 are different. Compared with a single cone 2, setting two cones 2 with different specifications can further increase the range of dilating the lacrimal punctum.

[0025] A friction plate 12 is fixedly installed at the bottom of the connecting piece 11, and a friction pipe 13 is fixedly sleeved on the outer wall of the inner pipe 6. The lower surface of the friction plate 12 is in contact with the outer surface of the friction pipe 13. By using the friction force between the friction plate 12 and the friction pipe 13, it is ensured that when the limit pipe sleeve 4 is pressed near the eye socket, the limit pipe sleeve 4 will not retract into the handle 1 under force. Moreover, the friction force between the friction plate 12 and the friction pipe 13 can also provide a damping feeling when pulling the anti-slip grip 3 to adjust the position of the limit pipe sleeve 4, so that it is not easy to fail to adjust in place multiple times due to hand shaking during adjustment.

[0026] A through hole 8 is opened on the cone 2, and a communication channel 9 is opened in the cone 2, the threaded pipe 702, and the inner pipe 6. A liquid inlet pipe 10 is fixedly installed at the bottom of the handle 1, and the top end of the liquid inlet pipe 10 is communicated with the inside of the communication channel 9. The liquid inlet pipe 10 is provided for introducing the flushing liquid into the communication channel 9. The flushing liquid enters the through hole 8 from the communication channel 9 and then sprays out to flush the lacrimal punctum.

[0027] Working principle: When in use, first, according to the dilation amplitude of the patient's lacrimal punctum, pull the anti-slip grip 3 to drive the connecting piece 11 to move, and then drive the limit pipe sleeve 4 to move to adjust the exposed length of the cone 2. By observing the scale on the connecting piece 11, the maximum radius of the exposed part of the cone 2 is determined. Then, hold the anti-slip grip 3 and insert the cone 2 into the lacrimal punctum until the limit pipe sleeve 4 is pressed near the eye socket to realize the dilation of the lacrimal punctum. Introduce the flushing liquid from the liquid inlet pipe 10 into the communication channel 9. The flushing liquid enters the through hole 8 from the communication channel 9 and then sprays out to flush the lacrimal punctum.

[0028] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A graduated punctum dilator, comprising a handle (1), a cone (2), and a connecting structure (7), characterized in that: An inner tube (6) is fixedly installed inside the handle (1). The cone (2) is detachably installed at the end of the inner tube (6) through a connection structure (7). A limiting tube sleeve (4) is slidably arranged inside the handle (1). A communication groove (5) is formed at the top of the handle (1). The limiting tube sleeve (4) is sleeved on the cone (2). A connecting piece (11) is fixedly installed at one end of the limiting tube sleeve (4) away from the cone (2). One end of the connecting piece (11) away from the limiting tube sleeve (4) extends out from the communication groove (5). A scale is arranged on the upper surface of the connecting piece (11). An anti-slip grip (3) is slidably sleeved on the outer wall of the handle (1). One end of the connecting piece (11) away from the limiting tube sleeve (4) is fixedly connected to the outer wall of the anti-slip grip (3).

2. The graduated punctum dilator according to claim 1, characterized in that: A magnifying glass (14) is fixedly installed on the inner wall of the communication groove (5). The magnifying glass (14) is located above the connecting piece (11). The magnifying glass (14) is located at one end of the communication groove (5) close to the limiting tube sleeve (4).

3. The calibrated punctum dilator according to claim 1, characterized in that: The connection structure (7) includes an internal thread groove (701) and a threaded tube (702). The internal thread groove (701) is formed at the end of the inner tube (6). The threaded tube (702) is fixedly installed at the end of the cone (2). The outer wall of the threaded tube (702) is threadedly connected to the inner wall of the internal thread groove (701).

4. The graduated punctum dilator according to claim 1, characterized in that: There are two cones (2) and two inner tubes (6), which are respectively located at the left and right ends of the handle (1). The specifications of the two cones (2) are different.

5. The graduated punctum dilator according to claim 1, characterized in that: A friction plate (12) is fixedly installed at the bottom of the connecting piece (11). A friction tube (13) is fixedly sleeved on the outer wall of the inner tube (6). The lower surface of the friction plate (12) is in contact with the outer surface of the friction tube (13).

6. The calibrated punctum dilator according to claim 1, wherein: A through hole (8) is formed in the cone (2). A communication channel (9) is formed in the cone (2), the threaded tube (702) and the inner tube (6). A liquid inlet pipe (10) is fixedly installed at the bottom of the handle (1). The top end of the liquid inlet pipe (10) is communicated with the inside of the communication channel (9).

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