Iris hook

Abstract

The application relates to the technical field of medical devices, in particular to an iris retractor, which comprises a retractor body and a perfusion pipe, the retractor body comprises a connecting part and a traction part, the connecting part is integrally formed with the perfusion pipe, and the traction part is bent towards the side of the perfusion pipe. By arranging the perfusion pipe, when the iris retractor is used, balanced liquid can be dripped into the eyeball through the perfusion pipe, which helps to keep the intraocular pressure balanced and facilitates surgical operation.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an iris retractor. Background Technology

[0002] In ophthalmic surgery, taking cataract surgery as an example, a puncture site needs to be made around the cornea first, and then a retractor is inserted. The iris is pulled by the retractor to dilate the pupil sufficiently, thus facilitating the surgical procedure.

[0003] Currently, existing retractors mainly consist of a gripping part and a traction part. The gripping part is connected to the traction part, which is hook-shaped or Y-shaped and used to pull the iris. The gripping part is convenient for doctors to hold and operate.

[0004] However, during the surgery, an imbalance in intraocular pressure can easily lead to sunken eyeballs, making it difficult to perform the surgery. Summary of the Invention

[0005] To address the problem of sunken eyeballs caused by intraocular pressure imbalance, this application provides an iris retractor.

[0006] This application provides an iris retractor, which adopts the following technical solution: an iris retractor includes a retractor body and an infusion tube. The retractor body includes a connecting part and a traction part. The connecting part is integrally formed with the infusion tube, and the traction part is bent toward the side of the infusion tube.

[0007] By adopting the above technical solution and setting up an irrigation tube, while using the iris retractor, a balancing solution is dripped into the eyeball through the irrigation tube, which helps to maintain intraocular pressure balance and facilitates surgical operation.

[0008] In one specific implementation, the outer diameter of the infusion tube is less than 1 mm.

[0009] By adopting the above technical solution and setting the outer diameter of the irrigation tube to less than 1mm, it is possible to minimize the outflow of too much balance fluid during the operation, limit the outflow rate of the balance fluid, and achieve a better filling effect.

[0010] In one specific implementation, the end of the infusion tube near the traction section has a beveled opening.

[0011] By adopting the above technical solution and setting an oblique cut, since the oblique cut opening is larger than the flat cut, the normal outflow of the equilibrium fluid in the injection tube can be guaranteed.

[0012] In one specific implementation, the hook body is detachably connected to the infusion tube.

[0013] By adopting the above technical solution, the retractor body and the irrigation tube are detachably connected, which facilitates the storage and cleaning of the retractor body after the operation, and also facilitates the adjustment of the relative position between the retractor body and the irrigation tube, so that it can be adjusted according to the usage habits of different doctors during the operation.

[0014] In one specific implementation, the infusion tube is provided with a first connecting ring, the first connecting ring having an opening on the side away from the infusion tube, and the inner wall of the first connecting ring having a plurality of ribs arranged circumferentially along the inner wall of the first connecting ring.

[0015] By adopting the above technical solution, by setting an opening on the first connecting ring, it is convenient to install the hook body into the first connecting ring. By setting ribs on the inner wall of the first connecting ring, the friction between the hook body and the first connecting ring can be increased, and relative sliding between the hook body and the irrigation tube can be avoided as much as possible during the operation.

[0016] In one specific implementation, the infusion tube is provided with a second connecting ring, and the inner wall of the second connecting ring is provided with a plurality of silicone sheets, which can be assembled into a circular sheet.

[0017] By adopting the above technical solution, the hook body is inserted into the second connecting ring, which facilitates the fixation of the hook body. By setting several silicone sheets, the friction between the hook body and the second connecting ring can be increased, and relative sliding between the hook body and the irrigation tube can be avoided as much as possible during the operation.

[0018] In one specific implementation, an adjusting block is fitted onto the infusion tube, an adjusting component is provided on one side wall of the adjusting block, and a safety component is provided on the side wall of the adjusting block opposite to the adjusting component.

[0019] By adopting the above technical solution, and by setting an adjustment component, the flow rate of the equilibration fluid in the infusion tube can be adjusted. By setting a safety component, the drip rate can only be adjusted when the safety component and the adjustment component are in action simultaneously, which helps to minimize the risk of misoperation during the operation.

[0020] In one specific implementation, the adjusting assembly includes an adjusting wheel and a connecting shaft, the connecting shaft passing through the adjusting wheel, one side wall of the adjusting block being an inclined surface, an installation groove for the adjusting wheel to pass through being provided on the inclined surface, and a sliding groove being provided on the inner wall of the adjusting block, the connecting shaft being slidably installed in the sliding groove.

[0021] By adopting the above technical solution, the adjusting wheel is pushed in the installation groove, and the adjusting wheel squeezes the injection tube. The flow rate of the equilibrium fluid in the injection tube can be adjusted according to the magnitude of the squeezing force. After the injection is completed, the adjusting wheel is pushed to the limit position to seal the injection tube.

[0022] In one specific implementation, a receiving groove is formed on the side wall of the adjusting block away from the inclined surface. The safety assembly includes a sealing plate and a limiting plate. The sealing plate is rotatably connected to the side wall of the receiving groove. A limiting cavity is formed on the side wall of the adjusting block. The limiting plate is slidably installed in the limiting cavity and is used to restrict the rotation of the sealing plate.

[0023] By adopting the above technical solution, when the limiting plate and the sealing plate are in contact, the limiting plate can limit the sealing plate and restrict its rotation, thereby squeezing the injection tube when the adjusting wheel is pushed. When the limiting plate and the sealing plate are not in contact, the adjusting wheel is pushed and pushes the injection tube toward the receiving groove. The injection tube drives the sealing plate to open, and the adjustment of the balanced droplet speed in the injection tube cannot be achieved.

[0024] In one specific implementation, a limiting groove is formed on the side wall of the adjusting block away from the adjusting wheel. The limiting groove is connected to the receiving cavity. A pushing block is provided on the adjusting block. A connecting plate is provided on the bottom wall of the pushing block. The connecting plate passes through the limiting groove and is connected to the limiting plate.

[0025] By adopting the above technical solution and setting a push block, it is easy to push the limiting plate during use. By setting the push block on the side wall away from the connecting plate, it is easy for the fingers holding the adjustment block on both sides to push the push block and the adjustment wheel at the same time during the operation, which is convenient for operation.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up an irrigation cannula, while using the iris retractor, a balancing solution is dripped into the eyeball through the irrigation cannula, which helps to maintain intraocular pressure balance and facilitates surgical procedures;

[0028] 2. The retractor body and the irrigation tube are detachably connected, which makes it easy to store and clean the retractor body after the operation, and also makes it easy to adjust the relative position between the retractor body and the irrigation tube, so that it can be adjusted according to the usage habits of different doctors during the operation.

[0029] 3. By setting up an adjustment component, the flow rate of the equilibration fluid in the infusion tube can be adjusted. By setting up a safety component, the drip rate can only be adjusted when both the safety component and the adjustment component are in action, which helps to minimize the risk of misoperation during the operation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0031] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0032] Figure 3 This is a structural schematic diagram of Embodiment 3 of this application.

[0033] Figure 4 This is a structural schematic diagram of Embodiment 4 of this application.

[0034] Figure 5 This is a cross-sectional view of the internal structure of the adjustment block in Embodiment 4 of this application.

[0035] Figure 6 This is a schematic diagram of the structure of the adjustment component in Embodiment 4 of this application.

[0036] Figure 7 yes Figure 5 Enlarged view of point A in the middle.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Hook body; 2. Injection pipe; 3. Connecting part; 4. Traction part; 5. First connecting ring; 6. Rib; 7. Second connecting ring; 8. Silicone sheet; 9. Adjusting block; 10. Adjusting assembly; 11. Safety assembly; 12. Adjusting wheel; 13. Connecting shaft; 14. Mounting groove; 15. Slide groove; 16. Sealing plate; 17. Limiting plate; 18. Receiving groove; 19. Limiting cavity; 20. Limiting groove; 21. Connecting plate; 22. Pushing block. Detailed Implementation

[0039] The present application will be further described in detail below with reference to the accompanying drawings.

[0040] Example 1:

[0041] This application discloses an iris retractor, as shown in the embodiments below. Figure 1 The iris retractor includes a retractor body 1 and an irrigation tube 2. The irrigation tube 2 is a silicone soft tube. The retractor body 1 includes a connecting part 3 and a traction part 4. The connecting part 3 is integrally formed with the irrigation tube 2, and the traction part 4 is bent towards the irrigation tube 2. The irrigation tube 2 is used to supply balanced fluid. During the operation, a puncture is first made around the cornea, and balanced fluid is introduced into the eye to maintain intraocular pressure balance. Then, the traction part 4 is inserted to pull the iris, making the pupil dilate sufficiently to facilitate surgical operation. The outer diameter of the irrigation tube 2 is less than 1 mm. To facilitate the smooth outflow of balanced fluid from the irrigation tube 2, the end of the irrigation tube 2 near the traction part 4 is set as an oblique incision.

[0042] The implementation principle of this application embodiment is as follows: first, a balancing fluid is introduced into the eye to keep the intraocular pressure balanced; then, the traction unit 4 is inserted, and the iris is pulled by the traction unit 4 to make the pupil dilate sufficiently to facilitate surgical operation.

[0043] Example 2:

[0044] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 2 Two first connecting rings 5 ​​are fixed on the infusion tube 2, spaced apart. Each first connecting ring 5 is made of silicone and has an opening on the side away from the infusion tube 2. Multiple ribs 6 are integrally formed on the inner wall of each first connecting ring 5, arranged along its inner circumference. The opening allows the hook body 1 to be inserted into the first connecting ring 5. The ribs 6 enhance friction between the hook body 1 and the first connecting ring 5, minimizing displacement during use. Furthermore, the hook body 1 is detachably connected to the infusion tube 2, facilitating disassembly and replacement after use, and allowing adjustment of their relative position before use.

[0045] The implementation principle of this embodiment is as follows: The hook body 1 is inserted into the first connecting ring 5 through the opening, completing the installation between the first connecting ring 5 and the hook body 1. Then, a balancing solution is introduced into the eye to maintain intraocular pressure balance; next, the traction unit 4 is inserted, and the traction unit 4 pulls on the iris to dilate the pupil sufficiently for surgical operation. After the surgery, the hook body 1 can be easily removed from the first connecting ring 5 for cleaning and storage.

[0046] Example 3:

[0047] The difference between this embodiment and Embodiment 1 is that, referring to... Figure 3 Two second connecting rings 7 are fixed on the injection tube 2, spaced apart. The second connecting rings 7 are made of silicone, and multiple silicone sheets 8 are fixed on the inner wall of the second connecting ring 7. The multiple silicone sheets 8 can be assembled into a circular piece. The hook body 1 is inserted into the second connecting ring 7. Through the friction between the silicone sheets 8 and the hook body 1, the hook body 1 can be fixed, which facilitates the installation and removal of the hook body 1.

[0048] The implementation principle of this application embodiment is as follows: the retractor body 1 is passed through the second connecting ring 7 to connect the retractor body 1 and the second connecting ring 7, and then a balancing fluid is introduced into the eye to maintain intraocular pressure balance; then the traction part 4 is inserted, and the traction part 4 pulls on the iris to dilate the pupil sufficiently to facilitate surgical operation. After the operation, the retractor body 1 can be easily removed from the second connecting ring 7 for cleaning and storage.

[0049] Example 4:

[0050] Reference Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that, referring to... Figure 4 An adjusting block 9 is slidably fitted onto the infusion tube 2. The adjusting block 9 is cylindrical and easy to grip during use. The hook body 1 is fixed to the side wall of the adjusting block 9 along its length. An adjusting component 10 is provided on the side wall of the adjusting block 9 along its width. A safety component 11 is provided on the side wall of the adjusting block 9 opposite to the adjusting component 10.

[0051] Reference Figure 5 and Figure 6 The adjusting assembly 10 includes an adjusting wheel 12 and a connecting shaft 13, with the connecting shaft 13 coaxially fixed to the adjusting wheel 12. One side wall of the adjusting block 9 is inclined, and a mounting groove 14 for the adjusting wheel 12 to pass through is formed on the inclined surface. A sliding groove 15 is formed on the inner wall of the adjusting block 9, and the connecting shaft 13 is slidably mounted within the sliding groove 15. Figure 4 When the adjusting wheel 12 is pushed toward the side closer to the traction part 4, the flow rate of the balancing fluid in the injection pipe 2 can be reduced.

[0052] Reference Figure 5 and Figure 7 The safety component 11 includes a sealing plate 16 and a limiting plate 17. A receiving groove 18 is formed on the side wall of the adjusting block 9 opposite to the adjusting component 10, and the sealing plate 16 is rotatably connected to the inner wall of the receiving groove 18. A limiting cavity 19 is also formed on the side wall of the adjusting block 9 away from the adjusting component 10, and the limiting plate 17 is slidably installed in the limiting cavity 19. A limiting groove 20 is formed on the side wall of the adjusting block 9, and the limiting groove 20 communicates with the limiting cavity 19. A connecting plate 21 is fixed on the limiting plate 17, and a pushing block 22 is provided at the top of the connecting plate 21. The connecting plate 21 passes through the limiting groove 20 and is fixedly connected to the pushing block 22.

[0053] Reference Figure 5 and Figure 6 By pushing the pusher block 22, the limiting plate 17 is positioned to limit the rotation of the sealing plate 16. Then, by pushing the adjusting wheel 12, it slides in the mounting groove 14. By controlling the pressure exerted by the adjusting wheel 12 on the infusion tube 2, the flow rate of the balancing fluid in the infusion tube 2 is adjusted. When the pusher block 22 is not in contact with the sealing plate 16, pushing the adjusting wheel 12 pushes the infusion tube 2 towards the receiving groove 18, causing the sealing plate 16 to open. The infusion tube 2 undergoes a small deformation. Therefore, without limiting the sealing plate 16, pushing the adjusting wheel 12 makes it difficult to adjust the drip rate. This prevents accidental pushing of the adjusting wheel 12 during surgery.

[0054] The implementation principle of this embodiment is as follows: The adjusting block 9 is installed on the infusion tube 2. When the limiting plate 17 and the sealing plate 16 are not in contact, it is difficult to adjust the drip rate of the balancing fluid in the infusion tube 2 by pushing the adjusting wheel 12. When the limiting plate 17 and the sealing plate 16 are in contact, pushing the adjusting wheel 12 causes the infusion tube 2 to be squeezed between the adjusting wheel 12 and the sealing plate 16, thereby allowing the adjustment of the drip rate of the balancing fluid in the infusion tube 2 to be achieved by pushing the adjusting wheel 12. After the balancing fluid is introduced, the iris is dilated by the traction part 4, thus facilitating surgical operations.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An iris retractor, characterized in that: It includes a hook body (1) and an injection tube (2). The hook body (1) includes a connecting part (3) and a traction part (4). The connecting part (3) is integrally formed with the injection tube (2). The traction part (4) is bent toward the side of the injection tube (2). An adjusting block (9) is fitted on the infusion tube (2), an adjusting component (10) is provided on one side wall of the adjusting block (9), and a safety component (11) is provided on the side wall of the adjusting block (9) opposite to the adjusting component (10). The adjustment assembly (10) includes an adjustment wheel (12) and a connecting shaft (13). The connecting shaft (13) passes through the adjustment wheel (12). One side wall of the adjustment block (9) is an inclined surface. An installation groove (14) is provided on the inclined surface for the adjustment wheel (12) to pass through. A sliding groove (15) is provided on the inner wall of the adjustment block (9). The connecting shaft (13) is slidably installed in the sliding groove (15). The adjusting block (9) has a receiving groove (18) on the side wall away from the inclined surface. The safety component (11) includes a sealing plate (16) and a limiting plate (17). The sealing plate (16) is rotatably connected to the side wall of the receiving groove (18). A limiting cavity (19) is opened on the side wall of the adjusting block (9). The limiting plate (17) is slidably installed in the limiting cavity (19). The limiting plate (17) is used to restrict the rotation of the sealing plate (16).

2. The iris retractor according to claim 1, characterized in that: The outer diameter of the injection tube (2) is less than 1 mm.

3. An iris retractor according to claim 1, characterized in that: The end of the injection pipe (2) near the traction part (4) has a slanted cut.

4. An iris retractor according to claim 1, characterized in that: The adjusting block (9) has a limiting groove (20) on its side wall. The limiting groove (20) is connected to the receiving cavity. The adjusting block (9) is provided with a pushing block (22). The bottom wall of the pushing block (22) is provided with a connecting plate (21). The connecting plate (21) passes through the limiting groove (20) and is connected to the limiting plate (17).

5. An iris retractor according to claim 1, characterized in that: The hook body (1) is detachably connected to the injection tube (2).

6. An iris retractor according to claim 5, characterized in that: The infusion tube (2) is provided with a first connecting ring (5), and the first connecting ring (5) has an opening on the side away from the infusion tube (2). The inner wall of the first connecting ring (5) is provided with a plurality of ribs (6), and the ribs (6) are arranged circumferentially along the inner wall of the first connecting ring (5).

7. An iris retractor according to claim 5, characterized in that: The infusion tube (2) is provided with a second connecting ring (7), and the inner wall of the second connecting ring (7) is provided with a plurality of silicone sheets (8), which can be assembled into a circular sheet.

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