Intranasal artificial lacrimal duct extractor

Abstract

The utility model relates to the technical field of medical instruments, and provides an intra-nasal artificial lacrimal duct extractor. The clamping device comprises a connecting piece and a clamping rod, the connecting piece is composed of two fixing blocks, and the fixing blocks are distributed up and down and rotationally connected; the clamping rods are in a U shape, the open ends of the clamping rods are fixedly connected with the fixing blocks, the closed ends of the clamping rods are bent, the number of the clamping rods is two, and each fixing block is fixedly connected with one clamping rod. The two clamping rods are bent towards the other clamping rod, the two fixing blocks rotate mutually to drive the included angle between the two clamping rods to be changed, and the clamping action is completed. According to the intranasal artificial lacrimal duct extractor, due to the U-shaped structure, it is guaranteed that the clamping rods are slender, meanwhile, the appearance of the clamping rods is smoother, damage to the inner walls of nostrils is effectively reduced, and meanwhile the closed ends of the clamping rods are bent so that the clamping capacity of the clamping rods can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an intranasal artificial tear duct extractor. Background Technology

[0002] Artificial tear ducts are implanted from the corner of the eye, with both ends extending into the nose. Once the patient's tearing symptoms disappear, the artificial tear ducts need to be removed from the nose.

[0003] In existing technologies, after the nostrils are dilated with an expander, the artificial lacrimal duct is mainly removed by using a combination of hooks and forceps. These tools are relatively sharp and can easily damage the inner wall of the nasal cavity. Due to the limited space inside the nostrils, the tools used need to be thin to facilitate the operation and observation of the removal progress. However, even thin tools with spherical tips can easily scratch the inner wall of the nasal cavity. Utility Model Content

[0004] The purpose of this invention is to provide an intranasal artificial lacrimal duct extractor. The U-shaped structure of this extractor ensures that the clamping rod is slender while making its surface smoother, effectively reducing damage to the inner wall of the nostril. At the same time, the closed end of the clamping rod is bent to enhance its clamping ability.

[0005] This utility model provides an intranasal artificial lacrimal duct removal device, comprising:

[0006] A connector, which consists of two fixed blocks that are vertically distributed and rotatably connected.

[0007] The clamping rod is U-shaped, with its open end fixedly connected to the fixing block and its closed end bent. There are two clamping rods, with one clamping rod fixedly connected to each fixing block.

[0008] The bending direction of both clamping rods is towards the other clamping rod. The rotation of the two fixing blocks relative to each other causes the angle between the two clamping rods to change, thus completing the clamping action.

[0009] Preferably, when the two clamping rods abut against each other at their closed ends, the closed ends of the clamping rods bend to form a gap between the two clamping rods, and the maximum width of the gap is no more than 3 mm.

[0010] Preferably, the opening size of one of the clamping rods is larger than that of the other clamping rod, and the two fixing blocks rotate relative to each other, causing the smaller clamping rod to be inserted into the opening of the other clamping rod.

[0011] Preferably, the connector has three fixing blocks. The fixing block in the middle position is fixedly connected to the smaller clamping rod, and the other clamping rod is simultaneously fixedly connected to the other two fixing blocks.

[0012] Preferably, the clamping rod is 40 mm long.

[0013] Preferably, the device further includes a control handle, which is fixedly connected to the connector from the side away from the clamping rod. The control handle includes a first handle and a second handle, which are respectively fixedly connected to the two clamping rods by fixing blocks.

[0014] Preferably, the control handle is integrally formed with a finger ring, the finger ring including a single-finger finger ring and a double-finger finger ring, the single-finger finger ring and the double-finger finger ring are respectively disposed on the first handle and the second handle, and the control handle deflects from the single-finger finger ring towards the double-finger finger ring.

[0015] Preferably, the deflection angle of the control handle is 45 degrees, and the included angles between the first handle, the second handle, and the two clamping rods are all 145 degrees.

[0016] Preferably, the distance from the single-finger ring and the double-finger ring to the connector is 60 mm.

[0017] Preferably, the inner side of the clamping rod in the bending direction is integrally formed with an anti-slip groove.

[0018] The technical solution of this utility model uses a connector to drive the clamping rod to perform a clamping action. The U-shaped structure of the clamping rod makes its tip more rounded while being relatively thin. At the same time, the hollow structure can provide a better field of view and facilitate the observation of the clamping progress. The closed end of the clamping rod is bent so that it can better grasp the artificial tear duct during the clamping process, avoid the artificial tear duct from falling off, and achieve a better user experience. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is the assembly drawing of the intranasal artificial lacrimal duct removal device of this utility model;

[0021] Figure 2 for Figure 1 Assembly drawing of connectors and clamping rods in the middle nasal artificial lacrimal duct removal device;

[0022] Figure 3 for Figure 1 Overall diagram of the control handle in the middle nasal artificial lacrimal duct removal device;

[0023] Figure 4 for Figure 1 Assembly diagram of the three fixing blocks in the middle nasal artificial lacrimal duct removal device;

[0024] Figure 5 for Figure 1 Axonometric view of the clamping rod in the middle nasal artificial lacrimal duct removal device.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Connector; 11. Fixing block; 2. Clamping rod; 21. Anti-slip groove; 3. Control handle; 4. Finger ring; 41. Single finger ring; 42. Double finger ring. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Combination Figures 1 to 5As shown, the intranasal artificial lacrimal duct extractor provided by this utility model includes a connector 1 and a clamping rod 2.

[0031] Combination Figures 1 to 5 As shown, the connector 1 consists of two fixing blocks 11, which are vertically distributed and rotatably connected. The clamping rod 2 is U-shaped, with its open end fixedly connected to the fixing block 11 and its closed end bent. There are two clamping rods 2, with one clamping rod 2 fixedly connected to each fixing block 11. The bending direction of both clamping rods 2 is towards the other clamping rod 2. The two fixing blocks 11 rotate relative to each other, causing the angle between the two clamping rods 2 to change, thus completing the clamping action.

[0032] In this embodiment, the clamping rod 2 is driven by the connector 1 to perform the clamping action. The U-shaped structure of the clamping rod 2 makes its tip more rounded while being relatively thin. At the same time, the hollow structure can provide a better field of view and facilitate the observation of the clamping progress. The closed end of the clamping rod 2 is bent so that it can better grasp the artificial tear duct during the clamping process, avoid the artificial tear duct from falling off, and achieve a better user experience.

[0033] In some embodiments, combined with Figure 1 , Figure 2 As shown, when the two clamping rods 2 abut against each other at their closed ends, the closed ends of the clamping rods 2 bend to form a gap between the two clamping rods 2. The maximum width of the gap is no more than 3 mm. The common diameter of the artificial tear duct is 3 to 5 mm. A gap of no more than 3 mm can ensure the contact effect between the clamping rods 2 and the artificial tear duct.

[0034] In some embodiments, combined with Figure 4 As shown, the opening size of one of the clamping rods 2 is larger than that of the other clamping rod 2. The two fixing blocks 11 rotate relative to each other, causing the smaller clamping rod 2 to be inserted into the opening of the other clamping rod 2. The two clamping rods 2 are clamped more tightly, and the gap width mentioned above does not need to be considered, thus ensuring the clamping effect.

[0035] In some embodiments, combined with Figure 4 As shown, the connector 1 has three fixing blocks 11. The fixing block 11 in the middle position is fixedly connected to the smaller clamping rod 2. The other clamping rod 2 is fixedly connected to the other two fixing blocks 11. Using three fixing blocks 11 to drive the two clamping rods 2 to rotate relative to each other can make the rotation angle of the two clamping rods 2 more flexible and eliminate the need to consider the collision problem.

[0036] In some embodiments, combined with Figure 1 , Figure 2As shown, the clamping rod 2 is 40 mm long. This length meets the usage requirements without increasing the difficulty of use or the safety of use due to excessive length.

[0037] In some embodiments, combined with Figure 1 , Figure 3 As shown, it also includes a control handle 3, which is fixedly connected to the connector 1 from the side away from the clamping rod 2. The control handle 3 includes a first handle and a second handle, which are respectively fixedly connected to the two clamping rods 2 by a fixing block 11. When the control handle 3 is not installed, the whole thing is in the shape of a clamp; after the control handle 3 is installed, it is in the shape of scissors, which makes it easier to control the clamping action.

[0038] In some embodiments, combined with Figure 1 , Figure 3 As shown, the control handle 3 is integrally formed with a finger ring 4, which includes a single-finger ring 41 and a double-finger ring 42. The single-finger ring 41 and the double-finger ring 42 are respectively set on the first handle and the second handle. The control handle 3 is deflected from the single-finger ring 41 to the double-finger ring 42. The thumb is inserted into the single-finger ring 41, and the index and middle fingers are inserted into the double-finger ring 42, which can effectively improve the user experience.

[0039] In some embodiments, combined with Figure 4 As shown, the deflection angle of the control handle 3 is 45 degrees, and the included angles between the first handle, the second handle and the two clamping rods 2 are all 145 degrees. The reasonable angle change can effectively prevent the user's hands from blocking the nostrils, and provide a better field of vision during use.

[0040] In some embodiments, combined with Figure 3 As shown, the distance from the single-finger ring 41 and the double-finger ring 42 to the connector 1 is 60 mm. The length of 60 mm allows the user's hand to avoid the nostrils. At the same time, the sufficient distance can also improve the accuracy of the user's control of the clamping action. Meanwhile, the reasonable length will not increase the difficulty of use due to excessive length.

[0041] In some embodiments, combined with Figure 5 As shown, the inner side of the clamping rod 2 in the bending direction is integrally formed with an anti-slip groove 21, which can increase the firmness of the clamping rod 2 in the artificial tear duct project.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An intranasal artificial lacrimal duct extractor, characterized in that, include: The connector (1) is composed of two fixed blocks (11), which are distributed vertically and rotatably connected to each other. The clamping rod (2) is U-shaped. The open end of the clamping rod (2) is fixedly connected to the fixing block (11), and the closed end of the clamping rod (2) is bent. There are two clamping rods (2), and each fixing block (11) is fixedly connected to one clamping rod (2). The bending direction of the two clamping rods (2) is towards the other clamping rod (2), and the two fixing blocks (11) rotate relative to each other, causing the angle between the two clamping rods (2) to change, thus completing the clamping action.

2. The intranasal artificial lacrimal duct extractor according to claim 1, characterized in that, When the two clamping rods (2) abut against each other at their closed ends, the closed ends of the clamping rods (2) bend to form a gap between the two clamping rods (2), and the maximum width of the gap is no more than 3 mm.

3. The intranasal artificial lacrimal duct extractor according to claim 1, characterized in that, One of the clamping rods (2) has a larger opening size than the other clamping rod (2), and the two fixing blocks (11) rotate relative to each other, causing the smaller clamping rod (2) to be embedded in the opening of the other clamping rod (2).

4. The intranasal artificial lacrimal duct extractor according to claim 3, characterized in that, The connector (1) has three fixing blocks (11). The fixing block (11) in the middle position is fixedly connected to the smaller clamping rod (2), and the other clamping rod (2) is fixedly connected to the other two fixing blocks (11).

5. The intranasal artificial lacrimal duct extractor according to claim 1, characterized in that, The clamping rod (2) is 40 mm long.

6. The intranasal artificial lacrimal duct extractor according to claim 1, characterized in that, It also includes a control handle (3), which is fixedly connected to the connector (1) from the side away from the clamping rod (2). The control handle (3) includes a first handle and a second handle, which are respectively fixedly connected to the two clamping rods (2) by a fixing block (11).

7. The intranasal artificial lacrimal duct extractor according to claim 6, characterized in that, The control handle (3) is integrally formed with a finger ring (4), which includes a single-finger finger ring (41) and a double-finger finger ring (42). The single-finger finger ring (41) and the double-finger finger ring (42) are respectively disposed on the first handle and the second handle. The control handle (3) deflects from the single-finger finger ring (41) to the double-finger finger ring (42).

8. The intranasal artificial lacrimal duct extractor according to claim 7, characterized in that, The deflection angle of the control handle (3) is 45 degrees, and the included angle between the first handle, the second handle and the two clamping rods (2) is 145 degrees.

9. The intranasal artificial lacrimal duct extractor according to claim 7, characterized in that, The distance from the single-finger ring (41) and the double-finger ring (42) to the connector (1) is 60 mm.

10. The intranasal artificial lacrimal duct extractor according to claim 1, characterized in that, The clamping rod (2) has an anti-slip groove (21) integrally formed on the inner side of the bending direction.

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