Improved conjunctival sac drainage and suction device
By using an improved conjunctival sac drainage and suction device, water is drawn into the drainage channel by adsorption force, solving the problem of water being difficult to completely drain in existing technologies, improving surgical efficiency and asepticity, and reducing safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN PROVINCIAL HOSPITAL
- Filing Date
- 2025-01-15
- Publication Date
- 2026-04-28
AI Technical Summary
Existing ophthalmic surgical drainage devices have difficulty completely draining water during intraoperative flushing, affecting the clarity of the surgical field and potentially causing the drapes to become wet, reducing sterility and increasing safety risks.
An improved conjunctival sac drainage and suction device was designed, which uses a first weight, a first hook, a metal tube, a soft tube, and a water suction device. Water is drawn into the drainage channel by suction force. The front end of the hook is hooked to the outside of the conjunctival sac, and the end of the soft tube is connected to a syringe. The assistant can immediately aspirate the accumulated water and keep the surgical field clear.
It effectively removes fluid accumulation in the conjunctival sac, avoids the need for wiping during surgery, improves surgical efficiency, reduces safety risks, and maintains the clarity and sterility of the surgical field.
Smart Images

Figure CN224166498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ophthalmic treatment devices, and more particularly to an improved conjunctival sac drainage and suction device. Background Technology
[0002] Currently used ophthalmic drainage devices in clinical practice are applied to patients with deep-set eyes and loose eyelid skin. During intraoperative flushing, they drain water out of the eye, maintaining a clear surgical field. The drainage device includes a second weight 7 and a second hook 8 connected to the second weight 7. The second hook 8 pulls down the lateral conjunctival sac, and the gravity of the second weight 7 hooks the front end of the drainage device onto the lateral side of the conjunctival sac, forming a pool at the lowest point of the lateral conjunctival sac. This pool collects water from the eye into the pool on the lateral side of the conjunctival sac. When the pool is full, the water flows into a effusion bag. However, existing devices have the following problems:
[0003] 1. During the procedure, some water will accumulate in puddles. Even with a drainage device, it is impossible to completely drain the water from the eye, affecting the clarity of the surgical field. For patients with deep eye sockets, it may even be impossible to perform the surgery normally. Assistants need to carefully wipe the water from the conjunctival sac with cotton balls and gauze, which affects the progress of the surgery and causes inconvenience to medical staff.
[0004] 2. After the eyelids are opened with an eyelid retractor, the cut eye patch fails to completely cover the drape, causing the water drained from the drainage device to wet the drape. This not only reduces the sterility of the drape, but may also cause it to stick to the patient's face due to the increased weight of the drape, thus affecting the breathing and surgical experience of patients under local anesthesia. Utility Model Content
[0005] Therefore, to address the aforementioned problems, this utility model proposes an improved conjunctival sac drainage and suction device. It solves the technical problem that conjunctival sac drainage during ophthalmic surgery requires operation by medical personnel, which is time-consuming, labor-intensive, and poses safety hazards.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An improved conjunctival sac drainage and suction device includes a first weight, a first hook connected to the first weight, a metal tube disposed on the first weight and / or the first hook, a flexible tube connected to the metal tube, and a water suction device connected to the flexible tube. The metal tube has a first drainage channel, and the flexible tube has a second drainage channel. The first drainage channel is connected to the second drainage channel, and the water suction device can generate suction force to draw water into the first drainage channel and the second drainage channel.
[0008] Further:
[0009] The first hook has an inner edge close to the human eye and an outer edge away from the human eye, and the water inlet of the metal tube is located at the outer edge of the first hook.
[0010] When placed vertically, the height difference between the water inlet of the metal pipe and the maximum height of the inner edge of the first hook body shall not exceed 15mm.
[0011] The height of the water inlet port of the metal pipe shall not exceed the maximum height of the inner edge of the first hook body.
[0012] The height difference between the water inlet port of the metal pipe and the maximum height of the inner edge of the first hook body shall not exceed 5mm.
[0013] The first hook body has a hook portion at its front end, and the hook portion has a flat structure.
[0014] The first hook body is made of titanium alloy.
[0015] The absorber is a syringe with a connector at the rear end of the tubing, and the absorber and the tubing are connected through the connector.
[0016] The first hook body is provided with at least one small hole, which is connected to the first drainage channel.
[0017] One of the small holes is located at the top of the first hook.
[0018] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:
[0019] The suction device of this invention hooks the front end of the first hook onto the outside of the patient's conjunctival sac, and the end of the flexible tube is connected to a syringe. When the surgeon flushes the eye during the operation, the assistant can pull the syringe to promptly draw the accumulated water from the conjunctival sac into the syringe, keeping the surgical field clear at all times and eliminating the need for the assistant to wipe the water inside the eye with cotton swabs or gauze. Furthermore, the opening of the metal tube is located slightly behind and above the hook, which can effectively absorb the water from the lowest point of the conjunctival sac without contacting the surface of the patient's eye, thus avoiding scleral damage. Furthermore, the height difference between the water inlet of the metal tube and the maximum height of the inner edge of the first hook does not exceed 5mm, resulting in better absorption. Furthermore, the hook has a flat structure, which improves the effect. Furthermore, the small hole can improve the drainage effect. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the attraction device of this utility model.
[0021] Figure 2 yes Figure 1 The exploded diagram.
[0022] Figure 3 This is a structural diagram of the first hammer, the first hook, and the metal tube.
[0023] Figure 4 This is a structural diagram of the hose and connector.
[0024] Figure 5 This is a schematic diagram of the structure where the first hook is not connected to the first hammer.
[0025] Figure 6 This is a simplified diagram of the structure with a small hole on the first hook body.
[0026] Figure 7 This is a schematic diagram of a traditional water diversion device.
[0027] Figure label:
[0028] 1. First counterweight; 2. First hook body; 20. Hook part; 21. Small hole; 3. Metal pipe; 30. First drainage channel; 4. Hose; 40. Second drainage channel; 5. Water suction device; 6. Connector; 7. Second counterweight; 8. Second hook body. Detailed Implementation
[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0030] refer to Figures 1 to 4 This embodiment provides an improved conjunctival sac drainage and suction device, including a first weight 1, a first hook 2 connected to the first weight 1, a metal tube 3 disposed on the first weight 1 and the first hook 2, a flexible tube 4 connected to the metal tube 3, and a water suction device 5 connected to the flexible tube 4. The metal tube 3 is provided with a first drainage channel 30, and the flexible tube 4 is provided with a second drainage channel 40. The first drainage channel 30 is connected to the second drainage channel 40. The water suction device 5 can generate suction force to draw water into the first drainage channel 30 and the second drainage channel 40.
[0031] In one embodiment, the first hook 2 has an inner edge close to the human eye and an outer edge away from the human eye, and the water inlet port of the metal pipe 3 is located at the outer edge of the first hook 2.
[0032] The first hook 2 mentioned above can also be set on the side edge of the first hook 2, depending on the specific situation.
[0033] In one embodiment, when placed vertically, the height difference between the water inlet of the metal pipe 3 and the maximum height of the inner edge of the first hook 2 does not exceed 15mm.
[0034] The aforementioned flexible tube 4 is made of silicone or other materials, depending on the specific circumstances.
[0035] In one embodiment, the height difference between the water inlet port of the metal pipe 3 and the maximum height of the inner edge of the first hook body 2 does not exceed 5mm. The height of the water inlet port of the metal pipe 3 and the maximum height of the inner edge of the first hook body 2 can be set to be flush.
[0036] In one embodiment, the height of the water inlet port of the metal pipe 3 is not higher than the maximum height of the inner edge of the first hook body 2. The height difference can be set to 4mm, 3mm, 2mm, 1mm or other values, depending on the specific situation.
[0037] In one embodiment, the front end of the first hook body 2 is provided with a hook portion 20, which has a flat structure.
[0038] The cross-section of the hook 20 can also be elliptical, circular or other structures, depending on the specific circumstances.
[0039] In one embodiment, the absorber 5 is a syringe, and the hose 4 has a connector 6 at its rear end. The absorber 5 and the hose 4 are connected through the connector 6.
[0040] refer to Figure 5 In one embodiment, the metal tube 3 may be provided only on the first hammer 1 and not on the first hook 2; in another embodiment, the metal tube 3 may be provided only on the first hook 2 and not on the first hammer 1; in yet another embodiment, the metal tube 3 may be fixed on the first hammer 1, while the first hook 2 is not connected to the first hammer 1 and is fixed on the metal tube 3.
[0041] refer to Figure 6 In one embodiment, the first hook body 2 is provided with a small hole 21, which is connected to the first drainage channel 30, and one of the small holes 21 is located at the top of the first hook body 2.
[0042] The number of holes 21 can be two, three or even more, or no holes 21 can be provided, depending on the specific situation.
[0043] The aforementioned water suction device 5 can also be a small fan or other device that can generate negative pressure to suck out water, depending on the specific situation.
[0044] The first hook 2 mentioned above is made of titanium alloy or other materials, depending on the specific circumstances.
[0045] The working principle of this utility model is as follows:
[0046] The suction device hooks the front end of the first hook 2 onto the outside of the patient's conjunctival sac, and the end of the tubing 4 is connected to a syringe. When the surgeon flushes the eye during the operation, a puddle forms at the lowest point of the outer conjunctival sac. The assistant can then pull the syringe to draw the accumulated water from the conjunctival sac into the syringe in a timely manner, keeping the surgical field clear at all times. This eliminates the need for the assistant to wipe the accumulated water in the eye with cotton swabs and gauze, reducing safety risks and improving the efficiency of the operation.
[0047] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. An improved conjunctival sac drainage and aspiration device, characterized in that: The device includes a first hammer, a first hook connected to the first hammer, a metal tube disposed on the first hammer and / or the first hook, a flexible tube connected to the metal tube, and a water suction device connected to the flexible tube. The metal tube has a first drainage channel, and the flexible tube has a second drainage channel. The first drainage channel is connected to the second drainage channel, and the water suction device can generate suction force to draw water into the first drainage channel and the second drainage channel.
2. The improved conjunctival sac drainage and aspiration device according to claim 1, characterized in that: The first hook has an inner edge close to the human eye and an outer edge away from the human eye, and the water inlet of the metal tube is located at the outer edge of the first hook.
3. An improved conjunctival sac drainage and aspiration device according to claim 2, characterized in that: When placed vertically, the height difference between the water inlet of the metal pipe and the maximum height of the inner edge of the first hook body shall not exceed 15mm.
4. An improved conjunctival sac drainage and aspiration device according to claim 3, characterized in that: The height of the water inlet port of the metal pipe shall not exceed the maximum height of the inner edge of the first hook body.
5. An improved conjunctival sac drainage and aspiration device according to claim 3, characterized in that: The height difference between the water inlet port of the metal pipe and the maximum height of the inner edge of the first hook body shall not exceed 5mm.
6. An improved conjunctival sac drainage and aspiration device according to claim 1, characterized in that: The first hook body has a hook portion at its front end, and the hook portion has a flat structure.
7. An improved conjunctival sac drainage and aspiration device according to claim 1, characterized in that: The first hook body is made of titanium alloy.
8. An improved conjunctival sac drainage and aspiration device according to claim 1, characterized in that: The absorber is a syringe with a connector at the rear end of the tubing, and the absorber and the tubing are connected through the connector.
9. An improved conjunctival sac drainage and aspiration device according to any one of claims 1 to 8, characterized in that: The first hook body is provided with at least one small hole, which is connected to the first drainage channel.
10. An improved conjunctival sac drainage and aspiration device according to claim 9, characterized in that: One of the small holes is located at the top of the first hook.