CN212261673U

CN212261673U - Micro-reverse intraocular scissors

Info

Publication number: CN212261673U
Application number: CN202021772644.XU
Authority: CN
Inventors: 林仲; 吴荣瀚; 江俊宏; 温寒
Original assignee: Eye Hospital of Wenzhou Medical University
Current assignee: Eye Hospital of Wenzhou Medical University
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-01-01
Anticipated expiration: 2030-08-24

Abstract

A pair of micro-reverse intraocular scissors comprises a main arm, wherein a scissors arm is hinged to the front end of the main arm, a movable arm is further arranged on the main arm, the movable arm is hinged and matched with the scissors arm and the main arm respectively, cutting edges are formed on the inner sides of the main arm and the scissors arm, the opening ends of the cutting edges formed between the main arm and the scissors arm and a hinged shaft of the main arm and the scissors arm are open ends of a power arm formed between the main arm and the movable arm and the hinged shaft of the main arm and the movable arm, the opening ends of the cutting edges and the opening ends of the power arm are arranged in the same direction, the function of operating corneal limbus proximal tissues is achieved through the transmission matching relationship among the main arm, the movable arm and the scissors arm, extra incision injury and operation procedures are not needed, and.

Description

Micro-reverse intraocular scissors

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to micro-reverse intraocular scissors.

Background

Ophthalmic microscissors are one of the most commonly used ophthalmic microsurgical instruments. The device is used for separating and cutting eye tissues in operation. When used in intraocular procedures, such as iris tissue dissection and dissection using ophthalmic microcapsular dissection, lens capsule dissection, vitreous dissection, etc., due to the limitations of access to an incision in the eye (e.g., a limbal incision, about 2 mm), it is often only possible to manipulate a portion of tissue distal to the incision, but difficult to manipulate tissue proximal to the incision.

The limitations of current ophthalmic surgery for such procedures are often addressed in two ways. First, the eye incision is more forcefully squeezed, freeing up additional space for manipulation. Second, one or more additional incisions are made into the eye to manipulate tissue at different locations. Both of the above approaches have significant drawbacks. Violent surgical operations can cause additional injuries to the incision (such as incision laceration, incision edema and the like), thereby increasing the pain of a patient after the operation, and influencing the healing of the incision, the recovery of vision and the like. In addition, even with violent manipulation, the most proximal end of the incision is not accessible. Although the operation on the tissues in multiple directions can be realized by additionally making a plurality of incisions, the risks of wound damage of the eye tissues and postoperative infection are additionally increased.

At present, the common microscissors used in the eyes, namely the ophthalmic capsular scissors, can not reversely operate the proximal tissues. Therefore, the reverse intraocular scissors used in the ophthalmic microsurgery is designed to solve the limitation and have certain clinical value.

Disclosure of Invention

In order to solve the technical defects existing in the prior art, the utility model provides a pair of micro-reverse intraocular scissors.

The utility model discloses a technical solution be: a pair of micro-reverse intraocular scissors comprises a main arm, wherein a scissors arm is hinged to the front end of the main arm, a movable arm is further arranged on the main arm, the movable arm is respectively hinged and matched with the scissors arm and the main arm, cutting edges are formed on the inner sides of the main arm and the scissors arm, opening ends of the cutting edges are formed between the main arm and the scissors arm and hinged shafts of the main arm and the scissors arm, opening ends of a power arm are formed between the main arm and the movable arm and the hinged shafts of the main arm and the movable arm, and the opening ends of the cutting edges and the opening ends of the power arm are arranged in the same direction.

One end of the scissors arm is hinged with the main arm, and the movable arm is hinged with the other end of the scissors arm.

The hinged end of the movable arm and the main arm is positioned on the right side of the hinged end of the main arm and the scissor arm.

The movable arm is in transmission fit with the scissor arm.

The movable arm and the scissor arm comprise a closed position which is collinear with the main arm and an open position which forms a closed triangle with the main arm.

The cutting edges are positioned at the positions of any section of the main arm and the scissor arm in an opening end formed between the main arm and the scissor arm and a hinged shaft of the main arm and the scissor arm.

The length of the scissor arm is 5-6 mm.

The main arm is provided with a sliding groove, the hinged shaft of the main arm and the movable arm is arranged in the sliding groove, and the hinged shaft of the main arm and the movable arm is matched in the sliding groove in a sliding mode along the direction of the main arm.

The utility model has the advantages that: the utility model provides a micro-reverse intraocular scissors, including the main arm, the front end of main arm articulates there is the scissors arm, still be equipped with the digging arm on the main arm, articulated cooperation respectively between digging arm and scissors arm and the main arm, the inboard of main arm and scissors arm is formed with the blade, the open end of the blade that forms between main arm and the scissors arm and their articulated shaft, form the open end of power arm between main arm and digging arm and their articulated shaft, the open end of blade and the open end syntropy of power arm set up, through the main arm, transmission cooperation relation between digging arm and the scissors arm, the function of operating is carried out to the marginal near-end tissue of cornea has been realized, need not extra incision damage and operation, the risk of wound damage and postoperative infection to the eye tissue has been reduced.

Drawings

Fig. 1 is a schematic view of the open structure of the micro-reverse intraocular scissors of the present invention.

Fig. 2 is a schematic view of the closed structure of the micro-reverse intraocular scissors of the present invention.

Fig. 3 is a schematic view of the micro-reverse intraocular scissors of the present invention.

Wherein, the device comprises 1-a main arm, 2-a scissor arm, 3-a movable arm, 4-a cutting edge and 11-a chute.

Detailed Description

The present invention will be further explained with reference to fig. 1, fig. 2 and fig. 3, and a micro-reverse intraocular shear comprises a main arm (1), wherein a shear arm (2) is hinged to the front end of the main arm (1), and the length of the shear arm (2) is 5-6 mm. The scissors-type electric scissors are characterized in that the main arm (1) is further provided with a movable arm (3), the movable arm (3) is hinged and matched with the scissors arm (2) and the main arm (1), cutting edges (4) are formed on the inner sides of the main arm (1) and the scissors arm (2), the opening ends of the cutting edges (4) formed between the main arm (1) and the scissors arm (2) and between hinge shafts of the main arm (1) and the movable arm (3) and between hinge shafts of the scissors arm are formed into the opening end of the power arm, and the opening ends of the cutting edges (4) and the opening end of the power arm. One end of the scissor arm (2) is hinged and matched with the main arm (1), and the movable arm (3) is hinged at the other end of the scissor arm (2). The hinged end of the movable arm (3) and the main arm (1) is positioned on the right side of the hinged end of the main arm (1) and the scissor arm (2). The movable arm (3) is in transmission fit with the scissor arm (2). The movable arm (3) and the scissor arm (2) comprise a closed position which is collinear with the main arm (1) and an open position at which the movable arm (3), the scissor arm (2) and the main arm (1) form a closed triangle. The utility model discloses a function of operating is carried out to the marginal near-end tissue of cornea to transmission cooperation relation between main arm, digging arm and the scissors arm has been realized, need not extra incision damage and operation, has reduced the risk of wound damage and postoperative infection to the eye tissue.

The cutting edge (4) is positioned at the position of any section of the main arm (1) and the scissor arm (2) in an opening end formed between the main arm (1) and the scissor arm (2) and a hinged shaft of the main arm and the scissor arm.

The main arm (1) is provided with a sliding groove (11), the hinged shaft of the main arm (1) and the movable arm (3) is arranged in the sliding groove (11), and the hinged shaft of the main arm (1) and the movable arm (3) is in sliding fit along the main arm (1) direction in the sliding groove (11).

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", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The micro-reverse intraocular scissors comprises a main arm (1) and is characterized in that a scissors arm (2) is hinged to the front end of the main arm (1), a movable arm (3) is further arranged on the main arm (1), the movable arm (3) is hinged and matched with the scissors arm (2) and the main arm (1) respectively, cutting edges (4) are formed on the inner sides of the main arm (1) and the scissors arm (2), opening ends of the cutting edges (4) are formed between the main arm (1) and the scissors arm (2) and between hinge shafts of the main arm (1) and the scissors arm (2), opening ends of power arms are formed between the main arm (1) and the movable arm (3) and between hinge shafts of the main arm (1) and the scissors arm, and the opening ends of the cutting edges (4) and the power arms are arranged in the same direction.

2. A micro-inverting intraocular shear as claimed in claim 1, characterised in that one end of said shear arm (2) is hinged to said main arm (1) and said movable arm (3) is hinged to the other end of said shear arm (2).

3. A micro-inverting intraocular shear as claimed in claim 1, characterised in that the hinged end of the movable arm (3) to the main arm (1) is located to the right of the hinged end of the main arm (1) and the shear arm (2).

4. A micro-inverting intraocular shear as claimed in claim 1, characterised in that said movable arm (3) is in driving engagement with said shear arm (2).

5. A micro-inverting intraocular shear according to claim 4, characterized in that said movable arms (3) and said scissor arms (2) comprise a closed position in line with the main arm (1) and an open position in which the movable arms (3) and the scissor arms (2) form a closed triangle with the main arm (1).

6. A micro-inverting intraocular shear as claimed in claim 1, characterised in that said cutting edges (4) are located at the position of the main arms (1) and the scissor arms (2) at any section within the open end formed between the main arms (1) and the scissor arms (2) and their articulated axes.

7. A micro-inverting intraocular shear according to claim 1, characterised in that the length of the shear arm (2) is 5-6 mm.

8. A micro-reversal intraocular shear according to claim 1, characterized in that the main arm (1) is provided with a sliding slot (11), the articulated shaft of the main arm (1) and the movable arm (3) is arranged in the sliding slot (11), and the articulated shaft of the main arm (1) and the movable arm (3) is slidably fitted in the sliding slot (11) along the direction of the main arm (1).