Intraocular incision device with intraocular lens

Abstract

The intraocular incision device comprises an operating handle, an incision guide rod and an incision elbow, the operating handle, the incision guide rod and the incision elbow are of hollow tubular structures and are communicated, an incision blade is fixed in an inner bent arc of the incision elbow, and a crystal binding device is movably arranged in a mode of penetrating through the incision guide rod and the incision elbow. The crystal binding device is connected with a crystal binding operation device; during use, a main incision and a secondary incision which are matched for use are formed in an eye, the incision elbow extends into the eye from the main incision and is arranged below an intraocular lens, the lens constraining operation device is rotated to release the lens constraining device, and the intraocular hook extends into the eye from the secondary incision to hook the lens constraining device on the cutting guide rod; when the intraocular lens is cut off, the intraocular lens binding operation device is rotated reversely, the cutting blade gradually makes contact with the intraocular lens until the intraocular lens is cut off along with tightening of the intraocular lens binding device, operation is stable, the speed is controllable, flaring is not needed, efficiency is improved, and damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of intraocular surgical tools, in particular to an intraocular incision device for artificial lenses. Background Art

[0002] After an intraocular lens is implanted in the eye, it needs to be removed in rare cases, such as when the intraocular lens becomes cloudy or the patient's eye condition changes, when the intraocular lens is damaged, degenerated, or the degree needs to be adjusted. The traditional method of removing intraocular lenses is generally: make a large corneal incision of no less than 2.2 mm at the temporal corneal limbus of the eye, gently peel the intraocular lens from the capsular bag, use scissors to enter the anterior chamber through the large corneal incision, and use the chopping hook on the opposite side to assist in fixing the intraocular lens, so that the scissors and the chopping hook cooperate to cut the intraocular lens, and then remove the cut parts of the intraocular lens from the incision one by one. Depending on the removal situation, the incision is sometimes even expanded. Therefore, the above-mentioned lens removal method requires a large incision, and the tip of the scissors needs a large vertical space to open, which will increase the damage to the intraocular tissue and even cause unnecessary increase in surgical astigmatism, slow postoperative recovery, and poor postoperative comfort to the patient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an intraocular intraocular incision device which does not require the incision to be expanded, has little intraocular damage and high cutting efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an artificial lens intraocular cutter, including an operating handle, one end of the operating handle is fixedly connected to a cutting guide rod, and the end of the cutting guide rod away from the operating handle is provided with a cutting elbow, the operating handle, the cutting guide rod and the cutting elbow are all arranged as hollow tubular structures and the three are connected in sequence, a cutting blade is fixed in the inner curve of the cutting elbow, a crystal restraint device is movably provided through the cutting guide rod and the cutting elbow, and the crystal restraint device extends into the operating handle, and a crystal restraint operating device for controlling the retraction and extension of the crystal restraint device is installed on the operating handle.

[0005] As a preferred technical solution, the crystal restraining device includes a crystal restraining hook arranged on the outside of the cutting elbow, and the crystal restraining hook is connected to a restraining guide wire. The restraining guide wire passes through the cutting elbow and the cutting guide rod and then extends to the operating handle. The end of the restraining guide wire is fixedly connected to the crystal restraining operating device.

[0006] As a preferred technical solution, the crystal restraining operation device includes a crystal restraining operation rod rotatably mounted in the operation handle, the crystal restraining operation rod partially extends to the outside of the operation handle, and the restraining guide wire is movably wound around the crystal restraining operation rod in the operation handle.

[0007] As a preferred technical solution, an operating knob is fixedly mounted on the end of the crystal binding operating rod extending to the outside of the operating handle.

[0008] As a preferred technical solution, a guide wire block is fixedly mounted inside the operating handle and is arranged opposite to the end of the crystal restraining operating rod, and the restraining guide wire is movably arranged to penetrate the middle of the guide wire block.

[0009] As a preferred technical solution, a protruding operation limit ring is provided at one end of the operating handle away from the cutting elbow.

[0010] As an improvement to the above technical solution, the cutting guide rod and the cutting elbow are an integrally formed structure.

[0011] Due to the adoption of the above technical solution, an intraocular intraocular incision device for an artificial lens includes an operating handle, one end of the operating handle is fixedly connected to a cutting guide rod, an end of the cutting guide rod away from the operating handle is provided with a cutting elbow, the operating handle, the cutting guide rod and the cutting elbow are all arranged as hollow tubular structures and the three are connected in sequence, a cutting blade is fixed in the inner curved arc of the cutting elbow, a crystal restraining device is movably provided through the cutting guide rod and the cutting elbow, and the crystal restraining device extends into the operating handle, and a crystal restraining operation device for controlling the retraction and extension of the crystal restraining device is installed on the operating handle Device; The utility model has the following beneficial effects: when in use, a main incision and a secondary incision are made in the eye for use together, the cutting elbow is extended from the main incision into the eye and placed under the artificial lens, the crystal restraint operating device is rotated to release the crystal restraint device, the intraocular hook is extended from the secondary incision into the eye, the crystal restraint device is hooked on the cutting guide rod with the help of the intraocular hook, and the crystal restraint operating device is rotated in the opposite direction. As the crystal restraint device is tightened, the cutting blade gradually contacts the artificial lens until it is cut. The entire process only requires rotating the crystal restraint operating device, so the operation is stable, the speed is controllable, no flaring is required, the efficiency is improved, and the damage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the structural cross section at the center A is enlarged;

[0015] Figure 3 yes Figure 1 A schematic diagram of a partial structural cross section at B in the middle;

[0016] Figure 4 This is a schematic diagram of the use state change of the crystal restraining device of the embodiment of the utility model;

[0017] In the figure: 1-operating handle; 2-cutting guide rod; 3-cutting elbow; 4-cutting blade; 5-crystal restraining hook; 6-restraining guide wire; 7-crystal restraining operating rod; 8-operating knob; 9-operating limit ring; 10-guide wire block. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Needless to say, those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, an intraocular intraocular cutter for an intraocular intraocular lens is used to cut an intraocular intraocular lens into pieces so as to facilitate its removal through a small incision in the eye. Specifically, it includes an operating handle 1, and an anti-slip pattern can be provided on the outer wall of the operating handle 1 to increase the friction between the operating handle 1 and the hand, which helps to improve the stability of the operating handle 1. A cutting guide rod 2 is fixedly connected to one end of the operating handle 1, and a cutting elbow 3 is provided at the end of the cutting guide rod 2 away from the operating handle 1. The operating handle 1, the cutting guide rod 2 and the cutting elbow 3 are all arranged as hollow tubular structures and the three are connected and arranged in sequence. Moreover, the outer diameter of the cutting guide rod 2 is much smaller than the outer diameter of the operating handle 1. When in use, part of the cutting guide rod 2 and the cutting elbow 3 will extend into the eye through the incision formed in the eye to perform the cutting operation of the intraocular lens. Generally, the cutting guide rod 2 and the cutting elbow 3 are arranged as an integrally formed structure for convenient processing and manufacturing.

[0020] In this embodiment, a cutting blade 4 is fixed in the inner curved arc of the cutting elbow 3, and a crystal restraining device is movably provided through the cutting guide rod 2 and the cutting elbow 3, and the crystal restraining device extends into the operating handle 1, and a crystal restraining operating device for controlling the retraction and extension of the crystal restraining device is installed on the operating handle 1. When in use, the crystal restraining operating device is operated to make the crystal restraining device be released and retracted in time, so as to cooperate with the cutting blade 4 to complete the cutting of the intraocular lens in the patient's eye.

[0021] Specifically, the crystal restraint device includes a crystal restraint hook 5 disposed on the outside of the cutting elbow 3, the crystal restraint hook 5 is connected to a restraint guide wire 6, the restraint guide wire 6 passes through the cutting elbow 3 and the cutting guide rod 2 and then extends to the operating handle 1, and the end of the restraint guide wire 6 is fixedly connected to the crystal restraint operating device. When not in use, the restraint guide wire 6 is tightened by the crystal restraint operating device, so that the crystal restraint hook 5 is brought together and abuts against the cutting blade 4, so as to facilitate the cutting elbow 3, the cutting blade 4, and the crystal restraint hook 5 to be delivered into the eye through the operating handle 1 and the cutting guide rod 2.

[0022] The crystal binding operation device includes a crystal binding operation rod 7 that is rotatably mounted in the operation handle 1, and the crystal binding operation rod 7 partially extends to the outside of the operation handle 1. The binding guide wire 6 is movably wound around the crystal binding operation rod 7 in the operation handle 1, and the binding guide wire 6 can be retracted and released by rotating the crystal binding operation rod 7. Initially, the binding guide wire 6 is in a tightened state, so that the crystal binding hook 5 and the cutting blade 4 are close together, which is convenient for sending it into the eye; after being sent into the eye, the binding guide wire 6 is in a released state; during use, it is slowly tightened by rotating the crystal binding operation rod 7 to cooperate with the cutting blade 4 to complete the cutting of the artificial lens.

[0023] In this embodiment, an operating knob 8 is fixedly mounted on the end of the crystal binding operating rod 7 extending to the outside of the operating handle 1, and the outer diameter of the operating knob 8 is larger than the outer diameter of the crystal binding operating rod 7, so that the crystal binding operating rod 7 can be smoothly rotated by the operating knob 8 to implement the smooth retraction and release of the binding guide wire 6. A protruding operating limit ring 9 is also provided at the end of the operating handle 1 away from the cutting elbow 3, which is used to cooperate with the doctor's hand to make the rotation operation of the operating knob 8 more stable.

[0024] A guide wire block 10 is fixedly mounted in the operating handle 1 and is arranged opposite to the end of the crystal restraining operating rod 7. The restraining guide wire 6 is movably arranged to penetrate the middle of the guide wire block 10, so that the guide wire block 10 can be positioned as much as possible in the middle of the lumen of the cutting guide rod 2 and the cutting elbow 3 during the retraction and extension process. A small gap is formed between the guide wire block 10 and the crystal restraining operating rod 7, which is used to prevent the crystal restraining operating rod 7 from being blocked and to leave adjustment space for the direction of the restraining guide wire 6, so as to ensure that the restraining guide wire 6 can be smoothly retracted and extended.

[0025] like Figure 4 As shown, the use process of this embodiment is:

[0026] A main incision and a secondary incision are formed in the eye. The cutting elbow 3 and the like enter the eye through the main incision. When performing the intraocular lens cutting, the intraocular hook is used to enter the eye through the secondary incision, and both incisions are relatively small. After the cutting elbow 3 enters the eye to the cutting position, the operating knob 8 is rotated to release the binding guide wire 6, and the lens binding hook 5 is hooked on the cutting guide rod 2 entering the eye with the help of the intraocular hook. At this time, the binding guide wire 6 is in a state of crossing the intraocular lens; the operating knob 8 is rotated in the opposite direction to slowly tighten the binding guide wire 6, so that the binding guide wire 6 slowly moves along the cutting guide rod 2 toward the cutting blade 4. At this time, if the sliding is not smooth, it can be pushed with the help of the intraocular hook to assist in moving; in the process of the binding guide wire 6 moving toward the cutting blade 4, the two cooperate to cut the intraocular lens. During the whole process, the binding guide wire 6 is wound and tightened by rotating the lens binding operating rod 7, so that it cooperates smoothly with the cutting blade 4. The artificial lens can be cut into small pieces and taken out through the main incision without the need to expand the main incision. The damage to the intraocular tissue is small, and the cutting speed is fast and the efficiency is high.

[0027] The description of the present invention is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. An intraocular lens incision device, comprising an operating handle, characterized in that: A cutting guide rod is fixedly connected to one end of the operating handle, and a cutting elbow is provided at the end of the cutting guide rod away from the operating handle. The operating handle, the cutting guide rod and the cutting elbow are all arranged as hollow tubular structures and the three are connected in sequence. A cutting blade is fixed in the inner curved arc of the cutting elbow, and a crystal restraint device is movably provided through the cutting guide rod and the cutting elbow, and the crystal restraint device extends into the operating handle. A crystal restraint operating device for controlling the retraction and extension of the crystal restraint device is installed on the operating handle.

2. The intraocular lens cutter according to claim 1, characterized in that: The crystal restraining device includes a crystal restraining hook arranged on the outside of the cutting elbow, and the crystal restraining hook is connected to a restraining guide wire. The restraining guide wire passes through the cutting elbow and the cutting guide rod and then extends to the operating handle. The end of the restraining guide wire is fixedly connected to the crystal restraining operating device.

3. The intraocular lens cutter according to claim 2, characterized in that: The crystal binding operation device comprises a crystal binding operation rod rotatably mounted in the operation handle, the crystal binding operation rod partially extends to the outside of the operation handle, and the binding guide wire is movably wound around the crystal binding operation rod in the operation handle.

4. The intraocular lens cutter according to claim 3, characterized in that: An operating knob is fixedly mounted on the end of the crystal binding operating rod extending to the outside of the operating handle.

5. The intraocular lens inotomy device according to claim 3, characterized in that: A guide wire block is fixedly sleeved inside the operating handle and is arranged opposite to the end of the crystal binding operating rod. The binding guide wire runs through the middle of the guide wire block and is movably arranged.

6. The intraocular lens inotomy device according to claim 1, characterized in that: A protruding operation limiting ring is provided at one end of the operating handle away from the cutting elbow.

7. The intraocular lens inotomy device according to claim 1, characterized in that: The cutting guide rod and the cutting elbow are an integrally formed structure.

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