A micro reverse intraocular scissors

Abstract

A micro reverse intraocular scissors comprises a main arm, a scissor arm is hinged at the front end of the main arm, a movable arm is further provided on the main arm, the movable arm is hingedly matched with the scissor arm and the main arm respectively, a cutting edge is formed on the inner side of the main arm and the scissor arm, an opening end of the cutting edge is formed between the main arm and the scissor arm and their hinge shafts, and an opening end of a power arm is formed between the main arm and the movable arm and their hinge shafts, and the opening end of the cutting edge and the opening end of the power arm are arranged in the same direction. Through the transmission matching relationship between the main arm, the movable arm and the scissor arm, the function of operating the proximal tissue of the corneal limbus is realized without the need for additional incision damage and operation procedures, thereby reducing the risk of traumatic damage to eye tissue and postoperative infection.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a pair of micro reverse intraocular scissors. Background Art

[0002] Ophthalmic microscissors are one of the most commonly used ophthalmic microsurgical instruments. They are used to separate and cut ocular tissues during surgery. When used for intraocular operations, such as using ophthalmic microcapsular scissors to separate and cut iris tissues, cut lens capsules, and cut vitreous bodies, due to the limitation of entering the intraocular incision (such as the limbal incision, about 2mm), it is often only possible to operate on part of the tissues at the distal end of the incision, and it is difficult to operate on the tissues near the incision.

[0003] Currently, there are two common ways to solve this operation limitation in ophthalmic surgery. First, squeeze the eye incision more violently to make extra space for operation. Second, make one or more additional incisions into the eye to operate on tissues in different positions. Both of the above methods have obvious defects. Violent surgical operations can cause additional damage to the incision (such as incision tearing, incision edema, etc.), which in turn increases the patient's pain after surgery, affects the healing of the incision, vision recovery, etc. In addition, even with violent operations, the nearest end of the incision cannot be operated. Although making additional incisions can achieve operations on tissues in multiple directions, it also increases the risk of traumatic damage to eye tissues and postoperative infection.

[0004] At present, the commonly used intraocular microscissors, namely the ophthalmic capsular scissors, cannot operate the proximal tissue in the reverse direction. Therefore, a reverse intraocular scissors used in ophthalmic microsurgery is designed to solve this limitation, which has certain clinical value. Summary of the invention

[0005] In order to solve the technical defects of the prior art, the present invention provides a micro reverse intraocular scissors.

[0006] The technical solution adopted by the present invention is: a micro reverse intraocular scissors, including a main arm, a scissor arm is hinged at the front end of the main arm, a movable arm is also provided on the main arm, the movable arm is hingedly matched with the scissor arm and the main arm respectively, a cutting edge is formed on the inner side of the main arm and the scissor arm, an opening end of the cutting edge is formed between the main arm and the scissor arm and their hinge shafts, an opening end of a power arm is formed between the main arm and the movable arm and their hinge shafts, and the opening end of the cutting edge and the opening end of the power arm are arranged in the same direction.

[0007] One end of the scissor arm is hinged to the main arm, and the movable arm is hinged to the other end of the scissor arm.

[0008] The hinged end of the movable arm and the main arm is located on the right side of the hinged end of the main arm and the scissor arm.

[0009] The movable arm and the scissor arm are matched with each other in transmission.

[0010] The movable arm and the scissor arm include a closed position in line with the main arm and an open position in which the movable arm and the scissor arm form a closed triangle with the main arm.

[0011] The cutting edge is located at the position of the main arm and the scissor arm at any section within the opening end formed between the main arm and the scissor arm and their hinge shafts.

[0012] The length of the scissor arms is 5-6 mm.

[0013] The main arm is provided with a slide groove, the hinge shafts of the main arm and the movable arm are arranged in the slide groove, and the hinge shafts of the main arm and the movable arm are slidably matched in the slide groove along the direction of the main arm.

[0014] The beneficial effects of the present invention are as follows: the present invention provides a micro-reverse intraocular scissors, comprising a main arm, a scissor arm is hinged at the front end of the main arm, a movable arm is further provided on the main arm, the movable arm is hingedly matched with the scissor arm and the main arm respectively, a cutting edge is formed on the inner side of the main arm and the scissor arm, an opening end of the cutting edge is formed between the main arm and the scissor arm and their hinge shafts, an opening end of a power arm is formed between the main arm and the movable arm and their hinge shafts, the opening end of the cutting edge and the opening end of the power arm are arranged in the same direction, and the function of operating the proximal tissue of the cornea is realized through the transmission matching relationship between the main arm, the movable arm and the scissor arm, without the need for additional incision damage and operation procedures, thereby reducing the risk of traumatic damage to eye tissue and postoperative infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the opening structure of the micro-reverse intraocular scissors of the present invention.

[0016] Figure 2 It is a schematic diagram of the closure structure of the micro-reverse intraocular scissors of the present invention.

[0017] Figure 3 It is a schematic diagram of the use of the micro reverse intraocular scissors of the present invention.

[0018] Among them, 1-main arm, 2-scissor arm, 3-movable arm, 4-cutting edge, and 11-slide. DETAILED DESCRIPTION

[0019] Now combined Figure 1 , Figure 2 , Figure 3The present invention is further described. A microscopic reverse intraocular scissors comprises a main arm (1). The front end of the main arm (1) is hingedly connected to a scissor arm (2). The length of the scissor arm (2) is 5-6 mm. The main arm (1) is also provided with a movable arm (3). The movable arm (3) is hingedly connected to the scissor arm (2) and the main arm (1). The inner sides of the main arm (1) and the scissor arm (2) are formed with a cutting edge (4). The opening end of the cutting edge (4) formed between the main arm (1) and the scissor arm (2) and their hinge shafts, and the opening end of the power arm formed between the main arm (1) and the movable arm (3) and their hinge shafts, and the opening end of the cutting edge (4) and the opening end of the power arm are arranged in the same direction. One end of the scissor arm (2) is hingedly connected to the main arm (1), and the movable arm (3) is hingedly connected to the other end of the scissor arm (2). The hinged end of the movable arm (3) and the main arm (1) is located on the right side of the hinged end of the main arm (1) and the scissor arm (2). The movable arm (3) and the scissor arm (2) are in transmission cooperation. The movable arm (3) and the scissor arm (2) include a closed position in line with the main arm (1) and an open position in which the movable arm (3) and the scissor arm (2) form a closed triangle with the main arm (1). The present invention realizes the function of operating the proximal tissue of the corneal limbus through the transmission cooperation relationship between the main arm, the movable arm and the scissor arm, without the need for additional incision damage and operation procedures, thereby reducing the risk of traumatic damage to the eye tissue and postoperative infection.

[0020] The cutting edge (4) is located at the position of any section of the main arm (1) and the scissor arm (2) within the open end formed between the main arm (1) and the scissor arm (2) and their hinge axes.

[0021] The main arm (1) is provided with a slide groove (11), and the hinge shafts of the main arm (1) and the movable arm (3) are arranged in the slide groove (11). The hinge shafts of the main arm (1) and the movable arm (3) are slidably matched in the slide groove (11) along the direction of the main arm (1).

[0022] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

[0025] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A micro reverse intraocular scissors, comprising a main arm (1), characterized in that: The front end of the main arm (1) is hinged with a scissor arm (2), and the main arm (1) is also provided with a movable arm (3). The movable arm (3) is hingedly matched with the scissor arm (2) and the main arm (1) respectively. A cutting edge (4) is formed on the inner side of the main arm (1) and the scissor arm (2). The opening end of the cutting edge (4) formed between the main arm (1) and the scissor arm (2) and their hinge shafts, the opening end of the power arm formed between the main arm (1) and the movable arm (3) and their hinge shafts, and the The open end of the cutting edge (4) and the open end of the power arm are arranged in the same direction. The movable arm (3) and the scissor arm (2) include a closed position in line with the main arm (1) and an open position in which the movable arm (3) and the scissor arm (2) form a closed triangle with the main arm (1). A slide groove (11) is provided on the main arm (1). The hinge axes of the main arm (1) and the movable arm (3) are arranged in the slide groove (11). The hinge axes of the main arm (1) and the movable arm (3) are slidably matched in the slide groove (11) along the direction of the main arm (1).

2. A micro reverse intraocular scissors according to claim 1, characterized in that: One end of the scissor arm (2) is hingedly connected to the main arm (1), and the movable arm (3) is hingedly connected to the other end of the scissor arm (2).

3. A micro reverse intraocular scissors according to claim 1, characterized in that: The hinged end of the movable arm (3) and the main arm (1) is located on the right side of the hinged end of the main arm (1) and the scissor arm (2).

4. A micro reverse intraocular scissors according to claim 1, characterized in that: The movable arm (3) and the scissor arm (2) are in transmission cooperation with each other.

5. The micro reverse intraocular scissors according to claim 1, characterized in that: The cutting edge (4) is located at the position of any section of the main arm (1) and the scissor arm (2) within the open end formed between the main arm (1) and the scissor arm (2) and their hinge axes.

6. The micro reverse intraocular scissors according to claim 1, characterized in that: The length of the scissor arm (2) is 5-6 mm.

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