Disposable drainage device for conjunctival sac in inner eye surgery

Abstract

The utility model discloses a disposable inner eye surgery conjunctival sac drainage device, relates to the technical field of medical instruments, and comprises a drainage piece and a diversion expansion part, the drainage piece is of a cambered heart-shaped structure fitting the inner side of the canthus of a human body, the front side of the drainage piece is provided with a drainage hole, the diversion expansion part is of a triangular structure, and the drainage hole is communicated with the drainage piece. Due to the fact that the drainage piece of the heart-shaped structure is arranged, the drainage piece can be exactly attached to the canthus portion of a patient, better stability and adaptability are provided, the occupied space of the drainage piece can be reduced through the concave portion of the front side of the drainage piece, and the drainage piece is convenient to use. And the interference on intraocular surgery operation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, and in particular relates to a disposable conjunctival sac drainage device for intraocular surgery. Background Art

[0002] Endophthalmosurgery refers to various surgeries performed inside the eyeball. Such surgeries usually require a high degree of precision and fine surgical techniques. The purpose of endophthalmosurgery is to treat or alleviate visual problems related to intraocular structures, such as cataracts, glaucoma, retinal detachment, macular degeneration, etc. During the operation, the cornea is exposed for a long time. In order to prevent the cornea from drying out, it is necessary to frequently moisten the cornea with balanced salt solution to ensure corneal transparency and a sufficiently clear surgical field. However, due to the physiological characteristics of the eye, especially patients with enophthalmos and deep eye sockets, the conjunctival sac of such patients is deep, which can easily lead to the accumulation of balanced salt solution in the conjunctival sac and even submerge the cornea during the operation, resulting in unclear surgical field and serious impact on the operation of the operator. In this case, the operator has to repeatedly suspend the operation and the assistant frequently cleans the effusion. Not only is the workload large, but the operation of cleaning the effusion will hinder the operator and affect the normal operation of the operator. If the cooperation is not good, it may also lead to errors in the operation and cause serious consequences.

[0003] In the prior art, conjunctival sac drainage structures have emerged to achieve automatic drainage of the conjunctival sac during ophthalmic surgery. For example, patent publication number CN 115844627 A discloses a cataract surgery patch that can quickly drain conjunctival sac effusion. Drainage is achieved by placing a drainage tube in the eyelid. However, placing the drainage tube in the eye will affect the doctor's surgical operation, which is inconvenient. Another example is patent publication number CN 114344588 A, which discloses a conjunctival sac drainer during ophthalmic surgery. The drainage effect is achieved by using a cotton strip. However, the drainage cavity cannot continue to absorb water after absorbing water to a certain saturation, which results in limited effectiveness and sustainability of water absorption. Therefore, it is urgent to design a conjunctival sac drainage structure that will not affect the doctor's operation and can achieve a continuous drainage effect. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a disposable conjunctival sac drainage device during intraocular surgery, which can realize continuous drainage of the conjunctival sac during the operation. The drainage device is located at the corner of the eye and occupies less space in the eye, which will not affect the doctor's operation.

[0005] The utility model solves the technical problem by adopting the following scheme: a conjunctival sac drainage device in disposable intraocular surgery, comprising a drainage piece and a diversion expansion part, wherein the drainage piece is a curved heart-shaped structure that fits the inner side of the human eye corner, a drainage hole is provided on the front side of the drainage piece, the diversion expansion part is a triangular structure, and the drainage piece and the diversion expansion part are connected by a drainage catheter, and a drainage tube is connected to the rear end of the diversion expansion part.

[0006] Furthermore, the drainage catheter is an arc-shaped structure that fits the outer side of the human eye corner.

[0007] Furthermore, the drainage piece, the drainage catheter and the drainage expansion part are made of medical sponge.

[0008] Furthermore, the inner side walls of the drainage piece, drainage catheter, diversion expansion part and drainage tube are provided with shaping wires, and the drainage piece, drainage catheter, diversion expansion part and drainage tube are supported and shaped by the shaping wires.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model provides a drainage piece with a heart-shaped structure, and the drainage piece can fit exactly in the corner of the patient's eye, providing better stability and adaptability, and the recessed part on the front side of the drainage piece can reduce the space occupied by the drainage piece, reducing interference with intraocular surgical operations; the setting of the drainage expansion part can ensure that the drainage piece can drain continuously; the overall structure adopts a material with deformation ability, and is combined with a shaping steel wire, allowing the drainage piece and the drainage catheter to be adjusted according to the patient's eye structure, thereby improving the versatility of the device; by setting the drainage piece to a sponge material with good water absorption effect, it is helpful to improve the drainage effect, maintain a moist environment in the eye, and protect the cornea; the device has a simple structure and low cost, and meets the characteristics of disposable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the drainage member of the utility model;

[0014] Figure 4 This is a schematic diagram of the utility model in use.

[0015] In the figure: 1. drainage piece; 12. drainage hole; 2. drainage catheter; 3. diversion expansion part; 4. drainage tube; 5. shaping wire. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] See also Figure 1-4 The utility model provides a technical solution for a disposable conjunctival sac drainage device in intraocular surgery: Example

[0018] according to Figure 1 , Figure 2 , Figure 3 As shown, it includes a drainage piece 1, a drainage catheter 2, a drainage expansion part 3 and a drainage tube 4 connected in sequence. The drainage piece 1 is configured to be a heart-shaped structure that fits the inner side of the human eye corner and has a certain curvature. A plurality of drainage holes 12 are provided on the front side of the drainage piece 1. By configuring the drainage piece 1 to be a heart-shaped structure, the drainage piece 1 can be exactly matched and placed to fit the patient's eye corner, thereby improving the stability of the drainage piece 1 in the eye corner to a certain extent. The drainage side of the drainage piece 1 is a curved surface structure, which improves the drainage effect while increasing the number of drainage holes 12. The concave portion on the front side of the heart-shaped structure can also minimize the occupied position of the drainage piece 1 in the eye. The drainage end on the rear side of the drainage piece 1 is connected to the drainage tube 4 by the concave portion on the front side of the heart-shaped structure. The drainage catheter 2 is connected to the drainage expansion part 3. The drainage catheter 2 is an arc-shaped structure that fits the outer side of the human eye corner. After the drainage piece 1 is placed in the patient's eye corner, the arc-shaped drainage catheter 2 can be supported on the outer side of the patient's eye, so that the drainage piece 1 is more stably located in the patient's eye corner. The drainage end of the drainage expansion part 3 on the rear side is connected with a drainage tube 4. The drainage expansion part 3 is a triangular structure. By adding the drainage expansion part 3 between the drainage piece 1 and the drainage tube 4, since the area of ​​the drainage expansion part 3 is larger than that of the drainage piece 1, the water absorption area of ​​the medical sponge can be increased, so that the water absorbed from the conjunctival sac by the drainage piece 1 is absorbed by the drainage expansion part 3, ensuring that the drainage piece 1 always has a better drainage effect;

[0019] The drainage piece 1, the drainage catheter 2 and the drainage expansion part 3 are made of medical sponges. The medical sponges have high water absorption and can also keep the patient's eyes moist. They can provide a necessary humid environment in the eyes, so that the liquid in the patient's eyes will not be completely drained by the drainage piece 1, thereby ensuring a certain degree of moisture in the patient's cornea during the operation.

[0020] A shaping steel wire 5 is provided on the inner side walls of the drainage piece 1, the drainage catheter 2, the diversion expansion part 3 and the drainage tube 4. The shaping steel wire 5 can support and shape the drainage piece 1, the drainage catheter 2, the diversion expansion part 3 and the drainage tube 4 to improve the stability of the structure. At the same time, the drainage piece 1, the drainage catheter 2 and the diversion expansion part 3 have a certain deformation ability. In actual use, the drainage piece 1 and the drainage catheter 2 can be adjusted and shaped to a shape that conforms to the patient's eye structure through the shaping steel wire 5 according to the different patient's eye structure, thereby improving the versatility and universality of the conjunctival sac drainage device.

[0021] When used specifically, Figure 4 As shown, firstly, the drainage piece 1 and the drainage catheter 2 are adjusted and shaped to a shape that conforms to the patient's eye structure through the shaping wire 5, and then the drainage piece 1 is placed on the inner side of the patient's eye corner, while the drainage catheter 2 is supported on the outer side of the patient's eye corner. During the operation, the excess liquid in the conjunctival sac is sucked into the drainage piece 1, and is discharged in turn through the drainage catheter 2, the diversion expansion part 3 and the drainage tube 4, thereby achieving the drainage of the liquid in the conjunctival sac.

[0022] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable conjunctival sac drainage device for intraocular surgery, characterized in that: The invention comprises a drainage piece (1) and a drainage expansion part (3), wherein the drainage piece (1) is a curved heart-shaped structure that fits the inner side of the human eye corner, a drainage hole (12) is provided on the front side of the drainage piece (1), the drainage expansion part (3) is a triangular structure, and the drainage piece (1) and the drainage expansion part (3) are connected via a drainage catheter (2), and a drainage pipe (4) is connected to the rear end of the drainage expansion part (3).

2. The disposable conjunctival sac drainage device for intraocular surgery according to claim 1, characterized in that: The drainage catheter (2) is an arc-shaped structure that fits the outer side of the human eye corner.

3. The disposable conjunctival sac drainage device for intraocular surgery according to claim 1, characterized in that: The drainage piece (1), the drainage catheter (2) and the drainage expansion part (3) are made of medical sponge.

4. The disposable conjunctival sac drainage device for intraocular surgery according to claim 3, characterized in that: The inner side walls of the drainage piece (1), the drainage catheter (2), the drainage expansion part (3) and the drainage tube (4) are provided with shaping steel wires (5), and the drainage piece (1), the drainage catheter (2), the drainage expansion part (3) and the drainage tube (4) are supported and shaped by the shaping steel wires (5).

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