Ophthalmologic operation needle

Abstract

The utility model provides an ophthalmologic operation needle which comprises a needle body, and a needle tip is arranged at one end of the needle body. A needle hole is formed in the needle tip and penetrates through the needle body in the length direction of the needle body, and the diameter of the needle hole ranges from 0.01 mm to 0.08 mm. According to the ophthalmologic operation needle, the central needle hole is formed in the needle point, and a 10-0 or 8-0 polypropylene suture can penetrate through the needle hole in the diameter range, so that after the needle point penetrates into an eye, the suture can penetrate through an IOL bag to be knotted and fixed with an IOL loop, and the long needle can exit in situ without penetrating through the eyeball wall on the other side. For a patient with IOL deviation, IOL bag complex deviation or only need to perform IOL unilateral loop ciliary sulcus fixation, a needle hole is formed in the tip end of the long needle, and after threading, the IOL is introduced into the eye through a needle tip. According to the three-piece type IOL, a suture line can be knotted and fixed to an IOL loop, and a long needle retreats along the original path. For a one-piece IOL, a long needle with an 8-0 suture can penetrate through the loop of the IOL, the polypropylene suture is left on the loop of the IOL, and the broken end is subjected to electrocoagulation knotting, so that operation steps are reduced, and wounds are reduced.

Description

Technical Field

[0001] This utility model relates to the field of ophthalmic microsurgical instruments, and in particular to an ophthalmic surgical needle. Background Technology

[0002] Ophthalmic microsurgery is a highly precise surgical procedure primarily used to treat eye diseases such as cataracts, glaucoma, retinal detachment, and corneal transplantation. This surgery is performed using a microscope or high-resolution microsurgical equipment, which greatly magnifies eye tissues, helping doctors observe and manipulate minute structures, ensuring the precision and safety of the procedure.

[0003] The core tools for microsurgery include surgical microscopes, microscopic scissors, forceps, surgical needles, and phacoemulsification devices. Surgeons typically use local anesthesia, allowing the patient to undergo surgery while awake, reducing the risks associated with general anesthesia. During the procedure, the eye is accessed through tiny incisions, with manipulations precise to the micrometer level, minimizing damage to surrounding tissues.

[0004] However, current ophthalmic microsurgery often uses needle-attached sutures, where the suture is fixed to the needle tail. During suturing, the needle, along with the suture, passes through the tissue before the suture is closed. Because the needle needs to pass through the entire tissue, this procedure increases tissue trauma in ophthalmic procedures (such as intraocular lens repositioning surgery). Summary of the Invention

[0005] This invention provides an ophthalmic surgical needle to solve the above-mentioned technical problems.

[0006] An ophthalmic surgical needle includes: a needle body, one end of which is provided with a needle tip and a needle hole, the needle hole being disposed through the needle body along its length, and the diameter of the needle hole being in the range of 0.01 to 0.08 mm.

[0007] Preferably, the diameter of the pinhole is in the range of 0.02 to 0.07 mm.

[0008] Preferably, the ophthalmic surgical needle is a straight needle or a curved needle.

[0009] Preferably, the needle tip is a spatula-shaped needle.

[0010] Preferably, the needle tip has a smooth coating.

[0011] Preferably, the smooth coating is at least one of polytetrafluoroethylene, diamond-like carbon coating, silver ion coating, and hyaluronic acid coating.

[0012] Preferably, the side wall of the needle body is provided with a connecting hole, which communicates with the needle hole.

[0013] Preferably, there are two or more connecting holes, which are spaced apart on the sidewall of the pinhole.

[0014] Preferably, the angle between the connecting hole and the pinhole is less than 90°.

[0015] Preferably, the diameter of the connecting hole is larger than the diameter of the pinhole.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the ophthalmic surgical needle described in one embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the ophthalmic surgical needle described in another embodiment of the present invention.

[0021] In the picture:

[0022] 100. Ophthalmic surgical needle; 110. Needle body; 111. Needle hole; 112. Connecting hole. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] This utility model embodiment provides an ophthalmic surgical needle 100, such as Figure 1 As shown, the ophthalmic surgical needle 100 includes: a needle body 110, one end of which is provided with a needle tip. The needle tip is provided with a needle hole 111, which is provided through the needle body 110 along its length, and the diameter of the needle hole 111 is in the range of 0.01 to 0.08 mm.

[0026] The working principle and beneficial effects of the above technical solution are as follows: The ophthalmic surgical needle 100 has a central needle hole 111 at its tip, with a diameter sufficient to pass through 10-0 or 8-0 polypropylene sutures. After the needle tip enters the eye, the suture can pass through the IOL pocket and be knotted and fixed to the IOL loop. The long needle can then be withdrawn in situ without having to pass through the other eyeball wall. For patients with IOL displacement, IOL pocket complex displacement, or those requiring only unilateral IOL loop ciliary sulcus fixation, a needle hole 111 is provided at the tip of the long needle. After threading the suture, the IOL is introduced into the eye using the needle tip. For three-piece IOLs, the suture can be knotted and fixed to the IOL loop, and the long needle can be withdrawn along the same path. For one-piece IOLs, a long needle with 8-0 sutures can be passed through the IOL loop, leaving the polypropylene suture on the IOL loop. The broken ends are then electrocoagulated and knotted, reducing surgical steps and trauma.

[0027] Furthermore, the diameter of the pinhole 111 ranges from 0.02 to 0.07 mm.

[0028] The working principle and beneficial effects of the above technical solution are as follows: The diameter range of polypropylene sutures (such as Prolene) is: 10-0 (extremely fine): typically 0.02mm-0.03mm in diameter. 8-0 (ultra-fine): typically 0.04mm-0.07mm in diameter. Within this range, the needle hole 111 allows for better control of the suture, improving surgical efficiency.

[0029] Please see Figure 1 and Figure 2Optionally, the ophthalmic surgical needle 100 can be a straight needle or a curved needle. Further, the needle tip is a spatula-shaped needle.

[0030] The working principle and beneficial effects of the above technical solutions are as follows: Straight needles are simple to operate, especially in areas where space is not limited, facilitating the suturing or repair of straight tissues. Curved needles are more suitable for operation in confined spaces, allowing for greater operational flexibility. They are commonly used in surgeries of the eyeball, conjunctiva, or cornea (such as corneal suturing and scleral suturing), and are very practical in areas requiring curved needle insertion and curved suturing.

[0031] In one embodiment, the angle between the plane where the needle tip is located and the needle axis is 15° to 30°.

[0032] The working principle and beneficial effects of the above technical solution are: it makes puncture easier and is suitable for operations on ultra-thin tissues.

[0033] In one embodiment, the needle tip is provided with a smooth coating. For example, the smooth coating is at least one of polytetrafluoroethylene, diamond-like carbon coating, silver ion coating, and hyaluronic acid coating.

[0034] The working principle and beneficial effects of the above technical solution are as follows: the smooth coating helps reduce friction between the needle tip and tissue, avoiding tearing and jamming. Antibacterial materials help reduce the risk of infection, especially suitable for patients with slow postoperative healing. The application of a biocompatible lubricating coating (such as a hyaluronic acid coating) can further reduce needle insertion resistance and enhance intraoperative smoothness.

[0035] In one embodiment, the side wall of the needle body 110 is provided with a connecting hole 112, which communicates with the needle hole 111.

[0036] The working principle and beneficial effects of the above technical solution are as follows: the suture can be inserted from the connecting hole 112 into the needle hole 111 of the needle tip, and at the same time, it can also perform functions such as ventilation, water supply or drug delivery through external devices.

[0037] Furthermore, there are two or more connecting holes 112, which are spaced apart on the sidewall of the pinhole 111.

[0038] The working principle and beneficial effects of the above technical solution are as follows: it connects to different devices to realize the surgical operation in steps.

[0039] In one embodiment, the angle between the connecting hole 112 and the pinhole 111 is less than 90°.

[0040] The working principle and beneficial effects of the above technical solution are as follows: it facilitates the thread to pass through the connecting hole 112 to the needle hole 111.

[0041] In one embodiment, the diameter of the connecting hole 112 is larger than the diameter of the pinhole 111.

[0042] The working principle and beneficial effects of the above technical solution are: it facilitates the connection of external devices and the insertion of sutures.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An ophthalmic surgical needle (100), characterized in that, The ophthalmic surgical needle (100) includes: The needle body (110) has a needle tip at one end and a needle hole (111) at the needle tip. The needle hole (111) is provided through the needle body (110) along its length and has a diameter range of 0.01 to 0.08 mm.

2. The ophthalmic surgical needle (100) according to claim 1, characterized in that, The diameter of the pinhole (111) ranges from 0.02 to 0.07 mm.

3. The ophthalmic surgical needle (100) according to claim 1, characterized in that, The ophthalmic surgical needle (100) is either a straight needle or a curved needle.

4. The ophthalmic surgical needle (100) according to claim 1, characterized in that, The needle tip is a spade-shaped needle.

5. The ophthalmic surgical needle (100) according to claim 1, characterized in that, The needle tip has a smooth coating.

6. The ophthalmic surgical needle (100) according to claim 5, characterized in that, The smooth coating is at least one of polytetrafluoroethylene, diamond-like carbon coating, silver ion coating, and hyaluronic acid coating.

7. The ophthalmic surgical needle (100) according to any one of claims 1-6, characterized in that, The side wall of the needle body (110) is provided with a connecting hole (112), which is connected to the needle hole (111).

8. The ophthalmic surgical needle (100) according to claim 7, characterized in that, There are two or more connecting holes (112), and the two or more connecting holes (112) are spaced apart on the side wall of the pinhole (111).

9. The ophthalmic surgical needle (100) according to claim 7, characterized in that, The angle between the connecting hole (112) and the pinhole (111) is less than 90°.

10. The ophthalmic surgical needle (100) according to claim 7, characterized in that, The diameter of the connecting hole (112) is larger than the diameter of the pinhole (111).

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