CN219661793U - Cornea incision spreader - Google Patents

Abstract

The utility model relates to a cornea incision spreader, which comprises a first forceps handle and a second forceps handle which are made of medical grade stainless steel materials, wherein the first forceps handle and the second forceps handle are crossed and are connected in a rotating way through a pin shaft at the crossed part, a first forceps arm and a second forceps arm are formed at the tail end of the first forceps handle and the second forceps handle opposite to the pin shaft, the end parts of the first forceps arm and the second forceps arm are respectively and symmetrically connected with arc-shaped flaps, the arc-shaped symmetrical outer arches of the arc-shaped flaps at the two sides are respectively and symmetrically arranged, the width of each arc-shaped flap is matched with the width size of a cornea incision, and a limiting rod for limiting the rotation and closing of the two handles is arranged at the inner sides opposite to the first forceps handle and the second forceps handle. The cornea incision spreader has simple structure and strong operability and practicability; in eye surgery, the damage to the tissue structure in the anterior chamber during anterior chamber operation can be reduced, the repeated operation process is reduced, and the surgery time is shortened. And the high-temperature high-pressure sterilization treatment can be performed, the high-temperature high-pressure sterilization treatment can be repeatedly used for multiple times, and the surgical consumable is reduced.

Description

Cornea incision spreader

Technical Field

The utility model relates to the field of surgical instruments, in particular to a cornea incision spreader for ophthalmic surgery.

Background

Clinically, after dislocation of the intraocular lens, the intraocular lens is taken out, or foreign matters in the anterior chamber after the cornea is pierced, when surgical operations such as foreign matter cleaning or treatment are performed, an incision needs to be made at the edge of the cornea, an operation tool is stretched into a lens bag, the displaced intraocular lens is taken out, the foreign matters in the bag are cleaned, and then lens implantation or resetting is performed. In the prior art, the operation process is generally to directly make a cornea expansion incision on the limbus, use a conventional operating forceps with proper specification and size to extend into the anterior chamber from the cornea incision, take out the dislocated artificial lens, or extend the foreign object forceps into the eye to perform operations such as foreign object cleaning, etc., the operation has very high requirements on the technical level and the skill level of doctors performing the operation, the instrument easily damages the cornea endothelium and the iris, and causes vitreous tissue incarceration when serious, thereby influencing postoperative recovery or operation treatment effect. Accordingly, for such procedures, there is a need to further design and develop new surgical instruments to assist in the surgical procedure to reduce mechanical damage to the intraocular tissue by the instruments.

Disclosure of Invention

Aiming at the problem that in the ophthalmic operation in the prior art, the surgical instrument is easy to damage the intraocular tissue, the utility model provides a cornea incision spreader which is used for spreading a cleaning part by virtue of the cornea incision spreader in the operation so as to protect the surrounding tissue of the operation part, reduce the operation damage and avoid the incision expansion.

The utility model aims at realizing the object, and discloses a cornea incision spreader which comprises a first forceps handle and a second forceps handle which are made of medical grade stainless steel materials, wherein the first forceps handle and the second forceps handle are crossed and are rotationally connected at the crossed part through a pin shaft, and a first forceps arm and a second forceps arm are formed at the tail end of the first forceps handle and the tail end of the second forceps handle opposite to the pin shaft.

In order to limit the opening angle of the first clamp handle and the second clamp handle in the free state, the main bodies of the first clamp handle and the second clamp handle are arc-shaped reed structures which are outwards arched symmetrically, the tail ends of the first clamp handle and the second clamp handle are crossed, the tail end of the first clamp handle is provided with a bayonet, and the tail end of the second clamp handle is clamped into the bayonet in a crossing manner so as to limit the opening angle of the two clamp handles.

Further, the width of the arc-shaped flap is wider than the widths of the arms corresponding to the first clamp arm and the second clamp arm, one side of the arc-shaped flap is flush with the length direction of the arms of the clamp arms along the length direction, and the other side of the arc-shaped flap protrudes out of the width of the corresponding clamp arm.

Further, a plurality of anti-slip holes are formed in the longitudinal gaps of the main body handles of the first clamp handle and the second clamp handle.

In order to further facilitate limiting the opening and closing angles of the two clamp handles, one end of the limiting rod is fixed on the inner side of an arc of the first clamp handle or the second clamp handle, the other end of the limiting rod corresponds to the inner side of the other clamp handle vertically, and when the first clamp handle and the second clamp handle rotate to the position that the tail ends of the limiting rod contact and lean against the inner sides of the corresponding clamp handles, the two arc-shaped flaps are closed to the minimum distance position.

The cornea incision spreader is used for stretching the arc-shaped flap into eyes from cornea incisions for spreading the cornea incisions when in lens dislocation reposition operation or in-capsular bag foreign matter removal, and the outer side of the arc-shaped flap supports the whole cornea layer, opens an access channel of an operation tool and plays a role in protecting the cornea endothelium, and then cleans foreign matters in the anterior chamber through an operation forceps or takes out the dislocation-shifted human crystalline lens, so that disturbance of the artificial lens to the anterior chamber is reduced, scratch of the cornea endothelium caused by improper operation is avoided, a more efficient and safe operation process is ensured, and foreign matter incarceration or operation risk of incision expansion caused by operation is avoided.

Drawings

Fig. 1 is a schematic view of the cornea incision spreader of the present utility model in an open state.

Fig. 2 is a state diagram of the corneal incision spreader of the present utility model closed to a minimum arcuate flap opening.

Fig. 3 is a side schematic view of the corneal incision spreader of the present utility model.

Wherein, 1 a first clamp handle; 2 a second clamp handle; 3, a limit rod; 4, pin shafts; 5 a first clamp arm; 6, a second clamp arm; 7 arc-shaped flaps; 8 bayonets.

Detailed Description

Referring to fig. 1-3, the corneal incision spreader according to the present utility model comprises a first forceps handle 1 and a second forceps handle 2 made of medical grade stainless steel material, wherein the first forceps handle 1 and the second forceps handle 2 are crossed and are rotatably connected at the crossing point through a pin shaft 3, and a first forceps arm 5 and a second forceps arm 6 are formed at the end of the first forceps handle 1 and the second forceps handle 2 opposite to the pin shaft 4, so that the formed corneal incision spreader has a main body shape similar to a forceps-shaped structure. In order to facilitate the operation of stretching into and opening the operation part along the cornea incision, the ends of the first forceps arm 5 and the second forceps arm 6 are respectively and symmetrically connected with an arc flap 7, the arc symmetry of the arc flaps 7 on two sides is outwards arched, the width of the arc flaps 7 is matched with the width dimension of the cornea incision so as to facilitate the operation part stretching into, and the inner sides of the first forceps handle 1 and the second forceps handle 2, which are opposite, are provided with limiting rods 3 for limiting the rotation of the two handles to close the minimum angle. And in order to conveniently limit the opening and closing angle of the two forceps handles, one end of the limiting rod 3 is fixed on the inner side of the arc of the first forceps handle 1 or the second forceps handle 2, the other end of the limiting rod vertically corresponds to the inner side of the other forceps handle, when the first forceps handle 1 and the second forceps handle 2 rotate until the tail end of the limiting rod 3 contacts and abuts against the inner side of the corresponding forceps handles, the two arc-shaped flaps 7 are closed to the minimum distance position, and at the moment, the state of the intraocular part is expanded during operation.

In the utility model, in order to conveniently limit the opening angle of the first clamp handle 1 and the second clamp handle 2 in a free state, the main bodies of the first clamp handle 1 and the second clamp handle 2 are arc-shaped reed structures which are symmetrically outwards arched, the tail ends of the first clamp handle 1 and the second clamp handle 2 are crossed, the tail end of the first clamp handle 1 is provided with a bayonet 8, and the tail end of the second clamp handle 2 is clamped into the bayonet 8 in a crossing way to limit the opening angle of the two clamp handles. In use, an operator holds the first forceps handle 1 and the second forceps handle 2 by holding the arc-shaped outer walls of the forceps handles to press the two forceps handles inwards so that the tail end of the limiting rod 3 abuts against the inner wall of the second forceps handle 2, and at the moment, the first forceps arm 5 and the second forceps arm 6 are also closed inwards to an angle state with the minimum distance between the two arc-shaped flaps 7, as shown in the state of fig. 2, and the state of opening a cornea incision to form a surgical channel during surgery.

To ensure the corneal incision size, the width of the arc-shaped flap 7 is wider than the corresponding arm widths of the first and second forceps arms 5 and 6, and one side of the arc-shaped flap 7 is flush with the arm length direction of the forceps arms in the length direction and the other side protrudes beyond the corresponding width of the forceps arms. When the arc-shaped flap 7 stretches into the eye from the cornea incision, one side of the arc-shaped flap 7 flush with the forceps arm is attached to the surface of the eye to stretch into the eye, so that the damage to the capsule wall in the eye in the stretching process of the arc-shaped flap 7 is avoided.

In addition, in order to facilitate the anti-slip grasping support in the operation, a plurality of anti-slip holes 9 are arranged in the longitudinal gaps of the main body handles of the first forceps handle 1 and the second forceps handle 2.

The cornea incision spreader is used for taking out the intraocular lens, after the intraocular lens is placed in the anterior chamber, the viscoelastic agent is placed in the anterior chamber, the cornea main incision is inserted into the cornea incision spreader, a passage can be opened, then the cornea incision spreader is used for clamping the intraocular lens in the anterior chamber, and the head of the cornea incision spreader is turned into an up-and-down spreading state, so that disturbance of the intraocular lens on the anterior chamber is reduced when the intraocular lens is taken out, scratch of corneal endothelium caused by improper operation is avoided, and the intraocular lens can be taken out more efficiently and safely.

The cornea incision spreader can be used for stretching and supporting cornea along the cornea incision when the artificial lens is taken out after dislocation of the artificial lens, so that the steps of cutting the optical part of the artificial lens for many times in operation can be reduced; in addition, when taking out irregular foreign matters in the anterior chamber, the supporting flap can protect corneal endothelial cells, reduce disturbance to the anterior chamber, avoid side injury such as iris incarceration caused by operation, and also can cause the problem of incision expansion caused by incarceration of the foreign matters when taking out the foreign matters.

Therefore, the cornea incision spreader has simple structure and strong operability and practicability; in the eye surgery, the damage to the tissue structure in the anterior chamber during the anterior chamber operation can be reduced, the repeated operation process is reduced, and the surgery time is shortened. And the medical stainless steel material can be subjected to high-temperature high-pressure sterilization treatment, can be repeatedly used for a plurality of times, and reduces surgical consumables.

Claims (5)

1. The utility model provides a cornea incision struts ware, includes first pincers handle and the second pincers handle of medical grade stainless steel material, first pincers handle and second pincers handle are alternately and are connected through the round pin axle rotation in the junction, the terminal first pincers arm and the second pincers arm that form of the relative round pin axle of first pincers handle and second pincers handle, its characterized in that, the tip of first pincers arm and second pincers arm symmetry respectively is connected with the arc lamella, and the arc symmetry of the arc lamella of both sides is outwards arched, the width of arc lamella and the width dimension looks adaptation of cornea incision, the inboard that first pincers handle and second pincers handle are relative is equipped with the gag lever post that is used for spacing two handles to rotate closed minimum angle.

2. The corneal incision spreader of claim 1, wherein the bodies of the first and second handles are arcuate leaf structures that arch symmetrically outward, the tail ends of the first and second handles are crossed, and wherein the tail end of the first handle is provided with a bayonet into which the tail end of the second handle is snapped to limit the angle of opening of the two handles.

3. The corneal incision spreader of claim 1, wherein the arcuate flap has a width that is wider than the corresponding arm widths of the first and second forceps arms, and wherein one side of the arcuate flap is longitudinally flush with the length of the arms and the other side projects beyond the width of the corresponding forceps arm.

4. The corneal incision spreader of claim 1, wherein the body handle longitudinal gaps of the first and second clamp handles are provided with a plurality of anti-slip holes.

5. The corneal incision spreader of claim 1, wherein the stop bar has one end fixed to an inside of an arc of the first or second forceps handle and the other end vertically corresponding to an inside of the other forceps handle, and wherein the two arc-shaped flaps are closed to a minimum-spaced position when the first and second forceps handles are rotated until the stop bar ends contact against the inside of the corresponding forceps handles.