CN218652211U - Crystal nucleus piece grabber - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, a crystalline nucleus piece grabber is disclosed, it is including holding pole, seal wire, slider and bowl scissors, and the accommodation space has been seted up to the inside of holding pole, and in the accommodation space was located to the seal wire front and back with sliding, the opening has been seted up to the lateral wall of holding pole, and install on the opening around the slider with sliding, and slider and seal wire fixed connection, the front end that is located holding pole is cut to the bowl, and the bowl is cut the grip block that has two ellipsoids, and two grip blocks all connect in the front end of seal wire. The utility model has the advantages that: the sliding block can be switched between the first position and the second position, so that the bowl scissors are opened or closed to clamp or cut scattered lens cortex and nucleus blocks in cataract surgery, and the closed bowl scissors can prevent the clamped lens nucleus blocks from slipping, the clearing efficiency and safety of the nucleus blocks are greatly improved, the operation time is shortened, and the operation skill requirement on operators is reduced.

Description

Crystal nucleus piece grabber

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a crystalline nucleus piece grabber.

Background

The lens is an important dioptric medium in the human eye, however, with age or for various other reasons, the transparency of the lens gradually decreases to cause cataract and ultimately affect the visual function of the human eye. At present, the common cataract surgery mode is ultrasonic emulsification extracapsular extraction, in which turbid crystalline lens is ultrasonically crushed and then absorbed, and then artificial crystalline lens is implanted to achieve the purpose of treating cataract. However, some patients may have rupture of the posterior capsule of the lens, scattering of cortex or nuclear fragments in the anterior chamber and even in the vitreous body, such as incomplete removal or improper operation, which may cause corneal endothelial decompensation, secondary glaucoma, uveitis and retinal detachment, and seriously affect the postoperative visual function of the patients.

In general, when rupture of the capsular sac occurs with the lens nucleus or cortex remaining, a skilled operator can float the nucleus block by injecting viscoelastic agent, and then enlarge the surgical incision to fish out the nucleus block by using a water injection sac ring, or gently clamp out the cortex or the nucleus block by using a capsulorhexis forceps.

In the prior art, the commonly used water injection capsule ring and the capsule tearing forceps are easy to slip off again when in use, and the nucleus block near the ruptured capsule is difficult to remove, so that the blind operation not only increases the operation risk, but also can cause the damage of other tissues in the eye. Therefore, a new type of lens nucleus mass grabber is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lens nucleus piece grabber, its simple structure, convenient to use can be fast effectual clamp get or cut lens cortex and nuclear piece.

The purpose of the application is realized by the following technical scheme:

a lens nucleus block gripper comprising: the bowl shear is positioned at the front end of the holding rod and provided with two bowl-shaped clamping blocks, the two clamping blocks are both connected to the front end of the guide wire, and the sliding block can be switched between a first position and a second position;

when the sliding block is located at the first position, the clamping blocks in the two bowl shapes are closed to be ellipsoidal;

when the sliding block is located at the second position, the front ends of the two bowl-shaped clamping blocks are separated.

In some embodiments of the present application, the holding rod includes a first rod and a second rod connected in sequence from front to back, and the first rod and the second rod are connected at an obtuse angle.

In some embodiments of the present application, the opening opens on the second rod.

In some embodiments of the present application, the first rod and the second rod are angled at 120-150 °.

In some embodiments of the present application, the bowl shears have a minor diameter of 3-4mm when the slide block is in the first position.

In some embodiments of the present application, the edge of the clamping block is configured as a knife edge structure.

In some embodiments of the present application, the guidewire is a metallic material.

The utility model provides a lens nucleus piece grabber, the holding rod can be used to supply the doctor to take, the operation of being convenient for, the seal wire can slide around holding the inside of pole, the slider can slide around on holding the lateral wall opening of pole, and seal wire and slider fixed connection, make doctor's slip slider can drive the seal wire back-and-forth movement, the bowl is cut and is installed at the seal wire front end, along with the back-and-forth movement of seal wire, two bowl shape grip blocks of bowl is opened or are closed, thereby can press from both sides and get or cut the lens nucleus piece that dislocates in the cataract operation, and closed bowl is cut and can prevent the lens nucleus piece slippage that presss from both sides, the efficiency and the security of dragging for the nucleus piece have been improved greatly, the operating time has been shortened, and the skill requirement to the art person has been reduced.

Drawings

FIG. 1 is a schematic diagram of a core block grabber configuration of the present application with the slide in a first position;

FIG. 2 is a schematic diagram of a core block grabber configuration of the present application with the slide in a second position;

fig. 3 is a schematic view of the structure of the opening on the second rod of the present application.

In the figure, 1, a holding rod; 11. an accommodating space; 12. an opening; 13. a first lever; 14. a second lever; 2. a guide wire; 3. a slider; 4. shearing a bowl; 41. and (4) clamping the block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like are used in the present invention as indicating orientations or positional relationships based on the orientations or positional relationships 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 in a specific orientation, and be operated, and therefore, 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.

As shown in fig. 1 to 3, an embodiment of the present application provides a lens nucleus block grabber, which includes: the novel bowl scissors comprise a holding rod 1, a guide wire 2, a sliding block 3 and bowl scissors 4, wherein an accommodating space 11 is formed in the holding rod 1, the guide wire 2 is arranged in the accommodating space 11 in a front-back sliding manner, an opening 12 is formed in the side wall of the holding rod 1, the sliding block 3 is arranged on the opening 12 in a front-back sliding manner, the sliding block 3 is fixedly connected with the guide wire 2, the bowl scissors 4 are positioned at the front end of the holding rod 1, the bowl scissors 4 are provided with two bowl-shaped clamping blocks 41, the two clamping blocks 41 are both connected to the front end of the guide wire 2, and the sliding block 3 can be switched between a first position and a second position;

when the sliding block 3 is located at the first position, the clamping blocks 41 in the two bowl shapes are closed to be ellipsoidal;

when the slide block 3 is located at the second position, the front ends of the two bowl-shaped holding blocks 41 are separated.

Based on above-mentioned technical scheme, holding rod 1 can be used to supply the doctor to take, the operation of being convenient for, seal wire 2 can be in the inside back-and-forth slip of holding rod 1, slider 3 can be in the back-and-forth slip of holding rod 1's lateral wall opening 12, and seal wire 2 and slider 3 fixed connection, make doctor slide slider 3 can drive seal wire 2 back-and-forth movement, bowl scissors 4 are installed at 2 front ends of seal wire, along with the back-and-forth movement of seal wire 2, two bowl-shaped grip blocks 41 of bowl scissors 4 open or close, thereby can press from both sides the lens nucleus piece that dislocates in the cataract surgery, and closed bowl scissors 4 can prevent the lens nucleus piece slippage of clamp-out, the efficiency and the security of dragging for the nucleus piece have been improved greatly, the operating time has been shortened, and the skill requirement to the art person has been reduced.

When the gripping device is used, the gripping device firstly extends into an eye from a tunnel incision of a cataract, the sliding block 3 is pushed forwards, the sliding block 3 drives the guide wire 2 to move forwards, the two bowl-shaped clamping blocks 41 of the bowl scissors 4 are opened, the lens nucleus block is collected into the clamping blocks 41 after being found, then the sliding block 3 is slid backwards, the sliding block 3 drives the guide wire 2 to move backwards, the two bowl-shaped clamping blocks 41 of the bowl scissors 4 are closed, the lens nucleus block is arranged in the bowl scissors 4 and cannot fall off, and then the gripping device is withdrawn from the corneal limbus incision. When the lens nucleus block is too large or the vitreous body is removed, the edges of the two bowl-shaped clamping blocks 41 can be used for shearing, and then the lens nucleus block is put in to play a role in shearing, so that the dual-purpose lens nucleus block is used for two purposes.

In some embodiments of the present application, as shown in fig. 1 and 2, the holding rod 1 includes a first rod 13 and a second rod 14 connected in sequence from front to back, and the first rod 13 and the second rod 14 are arranged at an obtuse angle. The first rod 13 and the second rod 14 arranged at the obtuse angle are convenient for a doctor to hold and operate, cannot block the sight and are more convenient to use.

In particular, as shown in fig. 3, the opening 12 opens onto the second rod 14. The second rod 14 is positioned at the rear end of the first rod 13 and is close to the holding position of the doctor, so that the doctor can operate the second rod by one hand more conveniently.

Specifically, as shown in fig. 1 and 2, the included angle between the first rod 13 and the second rod 14 is 120 ° to 150 °, which makes the cataract surgery easier, prevents the vision of the doctor from being disturbed, and improves the safety of the surgery.

In some embodiments of the present application, as shown in fig. 1, when the slider 3 is in the first position, the bowl shears 4 have a minor diameter of 3-4mm, which is adapted to the size of the surgical incision.

In some embodiments of the present application, as shown in fig. 2, the edges of the clamping block 41 are arranged in a knife-edge configuration. The edge of the holding block 41 can be made into a knife edge shape with a very thin thickness, so that the bowl shear 4 has a better shearing effect, and large lens cortex or nucleus blocks can be easier to be sheared into small blocks or escaping vitreous bodies can be easier to be sheared off.

In some embodiments of the present application, the guidewire 2 is a metallic material. The metal material is easy to obtain, has low cost, high strength, good ductility and the like, and is very suitable for being used as the material of the guide wire 2.

The utility model provides a lens nucleus piece grabber, holding rod 1 can be used to supply the doctor to take, the operation of being convenient for, 2 seal wires can be in holding 1 inside front and back slides of rod, slider 3 can slide back and forth on holding 1's lateral wall opening 12, and seal wire 2 and 3 fixed connection of slider, make doctor slide slider 3 can drive 2 back-and-forth movements of seal wire, bowl scissors 4 are installed at 2 front ends of seal wire, along with the back-and-forth movement of seal wire 2, two bowl shape grip blocks 41 of bowl scissors 4 open or close, thereby can press from both sides the lens nucleus piece of getting loose in the cataract surgery, and closed bowl scissors 4 can prevent the lens nucleus piece slippage of pressing from both sides, the efficiency and the security of dragging for the nucleus piece have been improved greatly, operating time has been shortened, and the skill requirement to the art person has been reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (7)

1. A lens nucleus block gripper, comprising: the bowl shear is positioned at the front end of the holding rod and provided with two bowl-shaped clamping blocks, the two clamping blocks are both connected to the front end of the guide wire, and the sliding block can be switched between a first position and a second position;

when the sliding block is located at the first position, the clamping blocks in the two bowl shapes are closed to be ellipsoidal;

when the sliding block is located at the second position, the front ends of the two bowl-shaped clamping blocks are separated.

2. The lens nucleus grasping device according to claim 1, wherein the holding rod comprises a first rod and a second rod connected in series from front to back, the first rod and the second rod being connected at an obtuse angle.

3. The lens nucleus grasping device of claim 2 wherein the opening opens on the second rod.

4. The lens nucleus mass gripper of claim 2, wherein the first and second rods are angled at 120 ° -150 °.

5. The lens core block gripper of claim 1, wherein the bowl shears have a minor diameter of 3-4mm when the sled is in the first position.

6. The lens nucleus mass gripper of claim 1, wherein the edges of the gripping block are arranged in a knife edge configuration.

7. The lens nucleus grasping device of claim 1 wherein the guide wire is a metal material.

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