Adjustable conjunctiva pulling hook for ophthalmology department

Abstract

The utility model relates to the field of medical auxiliary tools, and discloses an adjustable conjunctiva pulling hook for ophthalmology department, which comprises a connecting frame, movable brackets are rotatably mounted on two side parts of the connecting frame, a pulling hook main body is fixedly connected to one side part of each movable bracket, a threaded rod is in threaded connection to the middle part of one side of the connecting frame, and a connecting piece is rotatably mounted on one side part of the threaded rod; a groove is formed in the middle of one end of the movable support, the edge of one end of the movable connecting rod is hinged to the interior of the groove, a hollow rod is welded to the edge of the other side of the threaded rod, a movable rod is movably installed in the middle of one side of the hollow rod, and a grab handle is fixedly connected to the edge of one side of the movable rod; the movable support is driven to move by rotating the threaded rod, so that the effect of conveniently adjusting the distance between the two drag hook bodies is achieved, the overall applicability of the drag hook bodies is improved, and the problem that the drag hook bodies are possibly mismatched in size during use is solved.

Description

Technical Field

[0001] The present application relates to the field of medical auxiliary tools, and in particular to an adjustable conjunctival retractor for ophthalmology. Background Art

[0002] Ophthalmology is a branch of medicine that specializes in the study of the structure, function and diseases of the eye. Common ophthalmic examinations include intraocular pressure testing, optometry, fundus examination, etc. The conjunctival retractor is an instrument used in ophthalmic surgery, usually used to pull the conjunctiva to expose the sclera during eye surgery. This instrument can help doctors operate accurately, ensure the safety and effectiveness of the operation, help doctors complete the operation and promote patient recovery.

[0003] When performing eye surgery, people need to use retractors to operate, but the retractors need to be pressed on the conjunctiva to remain stable during use. However, for different patients, the retractors placed on the conjunctiva may have size mismatch problems, and retractors of different sizes need to be configured for use, which brings certain inconveniences to people's operations and increases the manufacturing cost of retractors of different sizes.

[0004] In view of the above-mentioned related technologies, the inventor believes that the conjunctival retractor has the defect that the size is not easy to adjust during use. Therefore, an adjustable conjunctival retractor for ophthalmology is proposed to solve the above problem. Utility Model Content

[0005] In order to solve the problem that the conjunctival retractor is inconvenient to adjust during use, the present application provides an adjustable conjunctival retractor for ophthalmology.

[0006] The present application provides an adjustable conjunctival retractor for ophthalmology using the following technical solution:

[0007] An adjustable conjunctival retractor for ophthalmology comprises a connecting frame, movable brackets are rotatably mounted on both side edges of the connecting frame, a retractor body is fixedly connected to one side edge of the movable bracket, a threaded rod is threadedly connected to the middle part of one side of the connecting frame, a connecting piece is rotatably mounted on one side edge of the threaded rod, movable connecting rods are rotatably mounted on both side edges of the connecting piece, a groove is provided in the middle part of one end of the movable bracket, one end edge of the movable connecting rod is hinged in the groove, a hollow rod is welded to the other side edge of the threaded rod, a movable rod is movably mounted in the middle part of one side of the hollow rod, a handle is fixedly connected to one side edge of the movable rod, and a limiting mechanism is also provided on the outer surface of the hollow rod for controlling the movable rod to be fixed after adjustment.

[0008] Preferably, the limiting mechanism includes a plurality of fixing grooves, the fixing grooves are equidistantly arranged at one edge of the outer surface of the hollow rod, an elastic clamp is welded to one side of the inner wall of the fixing groove, an external thread groove is arranged on the outer surface of the hollow rod near the fixing groove, a threaded sleeve is threadedly connected to the outer surface of the external thread groove, and a limiting clamp tube is welded to one side of the threaded sleeve.

[0009] Preferably, the width of the upper and lower ends of the movable connecting rod is smaller than the distance between the upper and lower ends of the inner wall of the groove, and the movable connecting rod and the groove are adapted to each other.

[0010] Preferably, the inner diameter of the hollow rod is larger than the outer diameter of the movable rod, one side edge of the movable rod is located inside the hollow rod, and the hollow rod and the movable rod are coupled to each other.

[0011] Preferably, the inner diameter of the limit clamp tube is larger than the outer diameter of the hollow rod, the top of one side of the elastic clamp block extends to the outside of the fixing groove, and the outer surface of the elastic clamp block fits with the inner wall of the limit clamp tube.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The threaded rod is driven to rotate by rotating the handle, thereby adjusting the distance between the connecting frame and the connecting piece, so that the connecting piece can move to drive the movable connecting rod to rotate, thereby driving the movable bracket to move synchronously, and adjusting the distance between the two movable brackets and the retractor body, so that the retractor body can be suitable for conjunctival positions of different sizes. Compared with the prior art, this solution has the effect of facilitating the adjustment of the distance between the two retractor bodies, improving the overall applicability of the retractor body, and solving the problem of possible size mismatch of the retractor body when in use.

[0014] 2. By pulling the movable rod to move along the inside of the hollow rod, the combined length of the hollow rod and the movable rod is adjusted, and the threaded sleeve is rotated to push the limit clamping tube close to the elastic clamping block, so that the limit clamping tube squeezes the elastic clamping block and moves tightly against the outer surface of the movable rod, thereby limiting and fixing the movable rod inside the hollow rod; compared with the prior art, this solution has the effect of facilitating the adjustment of the use length of the movable rod, improving the overall stability of the combined use of the hollow rod and the movable rod, and further enhancing the practicality of the movable rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the application;

[0016] Figure 2 is a schematic diagram of the bottom structure of the movable bracket in the application embodiment;

[0017] Figure 3 It is an application embodiment Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part;

[0018] Explanation of the reference numerals: 1. Connecting frame; 2. Movable bracket; 3. Hook body; 4. Threaded rod; 5. Connecting piece; 6. Movable connecting rod; 7. Groove; 8. Hollow rod; 9. Movable rod; 10. Handle; 11. Fixing groove; 12. Elastic clamping block; 13. External thread groove; 14. Threaded sleeve; 15. Limit clamping tube. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 This application is described in further detail.

[0020] The present application embodiment discloses an adjustable conjunctival retractor for ophthalmology. Figure 1-3 , an adjustable conjunctival retractor for ophthalmology, comprising a connecting frame 1, movable brackets 2 are rotatably installed on both sides of the connecting frame 1, a retractor body 3 is fixedly connected to one side edge of the movable bracket 2, a threaded rod 4 is threadedly connected to the middle part of one side of the connecting frame 1, a connecting piece 5 is rotatably installed on one side edge of the threaded rod 4, and movable connecting rods 6 are rotatably installed on both sides of the connecting piece 5. A groove 7 is opened in the middle part of one end of the movable bracket 2, the width of the upper and lower ends of the movable connecting rod 6 is less than the spacing between the upper and lower ends of the inner wall of the groove 7, the movable connecting rod 6 and the groove 7 are adapted to each other, one end edge of the movable connecting rod 6 is hinged inside the groove 7, a hollow rod 8 is welded on the other side edge of the threaded rod 4, an movable rod 9 is movably installed in the middle part of one side of the hollow rod 8, the inner diameter of the hollow rod 8 is greater than the outer diameter of the movable rod 9, one side edge of the movable rod 9 is located inside the hollow rod 8, the hollow rod 8 and the movable rod 9 are coupled to each other, a handle 10 is fixedly connected to one side edge of the movable rod 9, and a limiting mechanism is also provided on the outer surface of the hollow rod 8 for controlling the adjusted movable rod 9 to be fixed.

[0021] By rotating the handle 10, the hollow rod 8 and the threaded rod 4 are driven to rotate, thereby adjusting the distance between the connecting frame 1 and the connecting member 5, so that the connecting member 5 can move and drive the movable connecting rod 6 to rotate, and then the movable connecting rod 6 pulls the movable bracket 2 to rotate synchronously along the outer surface of the connecting frame 1, and adjusts the distance between the two movable brackets 2 and the hook body 3, so that the hook body 3 is suitable for conjunctival positions of different sizes, reflecting the movable adjustment effect of the hook body 3 when used.

[0022] Referring to the figure, the limiting mechanism includes a plurality of fixing grooves 11, which are equidistantly arranged at one edge of the outer surface of the hollow rod 8, an elastic clamping block 12 is welded to one side of the inner wall of the fixing groove 11, an external thread groove 13 is arranged on the outer surface of the hollow rod 8 near the fixing groove 11, a threaded sleeve 14 is threadedly connected to the outer surface of the external thread groove 13, a limiting clamping tube 15 is welded to one side of the threaded sleeve 14, the inner diameter of the limiting clamping tube 15 is larger than the outer diameter of the hollow rod 8, the top of one side of the elastic clamping block 12 extends to the outside of the fixing groove 11, and the outer surface of the elastic clamping block 12 fits with the inner wall of the limiting clamping tube 15.

[0023] By pulling the movable rod 9 to move along the inside of the hollow rod 8, the combined length of the hollow rod 8 and the movable rod 9 is adjusted, and the threaded sleeve 14 is rotated to push the limiting clamping tube 15 close to the elastic clamping block 12, so that the limiting clamping tube 15 squeezes the elastic clamping block 12 and moves along the inside of the fixing groove 11, thereby making the elastic clamping block 12 move and tightly adhere to the outer surface of the movable rod 9, so that the elastic clamping block 12 limits and fixes the movable rod 9 inside the hollow rod 8, reflecting the movable adjustment effect of the overall use length of the movable rod 9.

[0024] The implementation principle of the adjustable conjunctival retractor for ophthalmology is as follows: by pulling the movable rod 9 to move along the inside of the hollow rod 8, the combined length of the hollow rod 8 and the movable rod 9 is adjusted, and the threaded sleeve 14 is rotated to push the limit clamping tube 15 close to the elastic clamping block 12, so that the limit clamping tube 15 squeezes the elastic clamping block 12 to move along the inside of the fixed groove 11, and then the elastic clamping block 12 moves and clings to the outer surface of the movable rod 9, so that the elastic clamping block 12 limits and fixes the movable rod 9 inside the hollow rod 8, keeps the movable rod 9 in a stable placement state inside the hollow rod 8, and at the same time rotates the handle 10 to drive the hollow rod 8 to move. The core rod 8 and the threaded rod 4 rotate to adjust the distance between the connecting frame 1 and the connecting member 5, so that the connecting member 5 can move to drive the movable connecting rod 6 to rotate, and then the movable connecting rod 6 pulls the movable bracket 2 to rotate synchronously along the outer surface of the connecting frame 1, and adjusts the distance between the two movable brackets 2 and the hook body 3, so that the hook body 3 is suitable for conjunctival positions of different sizes. Compared with the prior art, this solution has the effect of facilitating the adjustment of the distance between the two hook bodies 3, improving the overall applicability of the hook body 3, and solving the problem of possible size mismatch of the hook body 3 when in use.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: 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 in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable conjunctival retractor for ophthalmology, comprising a connecting frame (1), characterized in that: The two side edges of the connecting frame (1) are both rotatably mounted with movable brackets (2), one side edge of the movable bracket (2) is fixedly connected with a hook body (3), the middle part of one side of the connecting frame (1) is threadedly connected with a threaded rod (4), one side edge of the threaded rod (4) is rotatably mounted with a connecting piece (5), and the two side edges of the connecting piece (5) are both rotatably mounted with movable connecting rods (6), a groove (7) is provided in the middle part of one end of the movable bracket (2), one end edge of the movable connecting rod (6) is hinged inside the groove (7), a hollow rod (8) is welded to the other side edge of the threaded rod (4), a movable rod (9) is movably mounted in the middle part of one side of the hollow rod (8), one side edge of the movable rod (9) is fixedly connected with a handle (10), and a limiting mechanism is also provided on the outer surface of the hollow rod (8) for controlling and fixing the movable rod (9) after adjustment.

2. The adjustable conjunctival retractor for ophthalmology according to claim 1, characterized in that: The limiting mechanism comprises a plurality of fixing grooves (11), the fixing grooves (11) being equidistantly arranged at one side edge of the outer surface of the hollow rod (8), an elastic clamping block (12) being welded to one side of the inner wall of the fixing groove (11), an external thread groove (13) being arranged on the outer surface of the hollow rod (8) near the fixing groove (11), a threaded sleeve (14) being threadedly connected to the outer surface of the external thread groove (13), and a limiting clamping tube (15) being welded to one side of the threaded sleeve (14).

3. The adjustable conjunctival retractor for ophthalmology according to claim 1, characterized in that: The width of the upper and lower ends of the movable connecting rod (6) is smaller than the distance between the upper and lower ends of the inner wall of the groove (7), and the movable connecting rod (6) and the groove (7) are adapted to each other.

4. The adjustable conjunctival retractor for ophthalmology according to claim 1, characterized in that: The inner diameter of the hollow rod (8) is greater than the outer diameter of the movable rod (9); one side edge of the movable rod (9) is located inside the hollow rod (8); and the hollow rod (8) and the movable rod (9) are coupled to each other.

5. The adjustable conjunctival retractor for ophthalmology according to claim 2, characterized in that: The inner diameter of the limit clamp tube (15) is greater than the outer diameter of the hollow rod (8), the top of one side of the elastic clamp block (12) extends to the outside of the fixing groove (11), and the outer surface of the elastic clamp block (12) and the inner wall of the limit clamp tube (15) are in contact with each other.

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