Intraocular anterior chamber flushing needle

Abstract

The utility model relates to the technical field of medical instruments, in particular to an intraocular anterior chamber flushing needle head which comprises a filling needle head, an infusion tube is connected to the rear end of the filling needle head, a perfusate bag is mounted at the other end of the infusion tube, the filling needle head comprises a metal needle head and a needle head base, a plurality of groups of first water outlets are formed in the needle head base, and a silicon rubber sleeve is sleeved on the outer side of the needle head. The silica gel sleeve comprises a sleeve and a sleeve base, and two sets of second water outlets are formed in the side wall of the front end of the sleeve. Compared with the prior art, the infusion needle head has the advantages that on the basis of increasing infusion, anterior chamber surging is reduced as much as possible, the infusion needle head is directly connected with a 500ml infusion liquid bag, water flow is continuously infused, back-and-forth water receiving of an injector is reduced, the infusion needle head can be operated by one hand, ophthalmic forceps can be held by the other hand to fix an eyeball, the aperture of the needle head is small, the number of water outlets is large, and operation is convenient. The disturbance to the anterior chamber is less, the efficiency is high, the probability of collapse of the anterior chamber is smaller when the anterior chamber is withdrawn, and the ICL displacement is less.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an intraocular anterior chamber flushing needle. Background Art

[0002] At present, the anterior chamber is flushed after ICL implantation using the IA handle of the cataract phacoemulsification system, or directly using a 5ml syringe with a disposable flushing needle. The IA handle is relatively large and efficient, but it causes greater disturbance to the anterior chamber in the eye. When the IA handle is withdrawn, the anterior chamber is prone to collapse, and the position of the ICL may move, affecting the postoperative effect. The disposable flushing needle syringe has a small water output and low flushing efficiency. When doctors with little experience perform anterior chamber flushing, it is not easy to form a vortex in the eye, resulting in residual viscoelastic substances that need to be flushed out in the eye, causing increased intraocular pressure after surgery. In addition, the syringe needs to be frequently refilled and replaced, affecting the operating efficiency. Utility Model Content

[0003] 1. Technical Problems Solved

[0004] The technical problem to be solved by the utility model is that the IA perfusion system of the cataract phacoemulsification instrument has large anterior chamber surging, disposable needle flushing and low efficiency.

[0005] 2. Technical Solution

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is: an intraocular anterior chamber flushing needle, including an infusion needle, the rear end of the infusion needle is connected to an infusion tube, the other end of the infusion tube is equipped with an infusion liquid bag, the infusion needle includes a metal needle and a needle base, the needle base is provided with multiple groups of water outlets 1, the outer side of the needle is covered with a silicone sleeve, the silicone sleeve includes a sleeve and a sleeve seat, and two groups of water outlets 2 are provided on the front end side wall of the sleeve.

[0007] As an improvement, there is a gap between the sleeve and the metal needle, and the end of the sleeve away from the sleeve seat is in close contact with the outer side of the metal needle.

[0008] As an improvement, there is a gap between the sleeve and the needle base, and the end of the sleeve away from the sleeve is in close contact with the outer side of the needle base.

[0009] 3. Beneficial Effects

[0010] The advantages of the utility model compared with the prior art are:

[0011] 1. The perfusion needle of this application can reduce the anterior chamber surge as much as possible on the basis of increasing the perfusion, directly connect to the 500ml perfusion liquid bag, continuously perfuse the water flow, reduce the back and forth filling of the syringe with water, and can be operated with one hand, and the other hand can hold the ophthalmic forceps to fix the eyeball. The needle has a fine aperture, multiple water outlets, less disturbance to the anterior chamber, high efficiency, and a smaller chance of anterior chamber collapse when withdrawing the anterior chamber, and less ICL displacement;

[0012] 2. The metal perfusion needle is wrapped with a silicone sleeve to reduce contact damage to intraocular structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of an intraocular anterior chamber flushing needle.

[0014] Figure 2 The utility model is a cross-sectional view of an injection needle and a silicone sleeve of an intraocular anterior chamber flushing needle.

[0015] Figure 3 The utility model is a schematic diagram of the structure of an injection needle of an intraocular anterior chamber flushing needle.

[0016] Figure 4 The utility model is a schematic diagram of the structure of a silicone sleeve of an intraocular anterior chamber flushing needle.

[0017] As shown in the figure: 1. Infusion needle; 101. Metal needle; 102. Needle base; 103. Water outlet one; 2. Silicone sleeve; 201. Sleeve; 202. Sleeve seat; 203. Water outlet two; 3. Infusion tube; 4. Infusion liquid bag. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] As attached Figure 1 - Attachment Figure 4 As shown, an intraocular anterior chamber flushing needle comprises an irrigation needle 1, the rear end of the irrigation needle 1 is connected with an infusion tube 3, the other end of the infusion tube 3 is installed with an irrigation liquid bag 4, the irrigation needle 1 comprises a metal needle 101 and a needle base 102, the needle base 102 is provided with a plurality of groups of water outlets 103, the outer side of the needle 1 is covered with a silicone sleeve 2, the silicone sleeve 2 comprises a sleeve 201 and a sleeve seat 202, and the front end side wall of the sleeve 201 is provided with two groups of water outlets 203.

[0020] Combined with Figure 3 and attached Figure 4 As shown, there is a gap between the sleeve 201 and the metal needle 101, and the end of the sleeve 201 away from the sleeve 202 is in close contact with the outside of the metal needle 101. There is a gap between the sleeve 202 and the needle base 102, and the end of the sleeve 202 away from the sleeve 201 is in close contact with the outside of the needle base 102. Through the above structure, the perfusion liquid can flow between the perfusion needle and the sleeve, and no leakage will occur at both ends of the sleeve.

[0021] The specific usage is as follows:

[0022] There are two water outlets 203 on both sides of the front end of the sleeve 201, a group of water outlets 103 at the front end of the metal flushing needle, and two water outlets 203 at the front end of the silicone sleeve. Therefore, the flushing needle has three water outlets for direct water discharge of the irrigation liquid. The water output is significantly greater than that of the single-needle flushing needle. In addition, the two water outlets 203 at the periphery can be used to irrigate the anterior chamber from the side, providing intraocular vortex and improving the flushing efficiency. The perfusion liquid bag 4 is directly connected to the perfusion needle 1 through the infusion tube 3, and can be continuously perfused. When withdrawing from the anterior chamber, the depth of the anterior chamber space can be maintained to reduce ICL displacement.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An intraocular anterior chamber flushing needle, comprising an infusion needle (1), the rear end of the infusion needle (1) is connected to an infusion tube (3), the other end of the infusion tube (3) is equipped with an infusion liquid bag (4), characterized in that: The perfusion needle (1) comprises a metal needle (101) and a needle base (102), the needle base (102) being provided with a plurality of groups of water outlets one (103), the outer side of the perfusion needle (1) being covered with a silicone sleeve (2), the silicone sleeve (2) comprising a sleeve (201) and a sleeve seat (202), and two groups of water outlets two (203) being provided on the front end side wall of the sleeve (201).

2. An intraocular anterior chamber flushing needle according to claim 1, characterized in that: There is a gap between the sleeve (201) and the metal needle (101), and one end of the sleeve (201) away from the sleeve seat (202) is in close contact with the outer side of the metal needle (101).

3. The intraocular anterior chamber flushing needle according to claim 1, characterized in that: There is a gap between the sleeve (202) and the needle base (102), and one end of the sleeve (202) away from the sleeve (201) is in close contact with the outer side of the needle base (102).

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