JP2554219Y2 - Contact lenses for intraocular vitreous surgery - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel contact lens for vitreous surgery, which allows a surgeon to perform surgery without assistance in a vitreous surgery in an eyeball, and can reduce the operation time.

[0002]

2. Description of the Related Art In conventional vitreous surgery, which is an operation on the vitreous body in the eyeball, when observing the fundus and its surroundings with an operating microscope, a contact lens is required with some exceptions. This is a so-called vitreous surgery contact lens, consisting of several types of contact lenses and rings.The method of use is to sew a ring that holds the contact lens on the cornea and put a contact lens adapted for observation purposes in it. The surgeon places the scalpel and illumination fiber inserted into the vitreous body with both hands while observing with a microscope from above. Therefore, in this case, since the surgeon has both hands full, the assistant operates the contact lens as needed.

A conventional surgical contact lens in such a vitreous surgery has a lens-shaped handle attached to the upper surface of a cylindrical lens body by adhesion or the like (hereinafter referred to as a "handled lens") or a handle. There is a lens only without lens attached (hereafter referred to as "patternless lens"). The patterned lens is operated by pinching both the handle and the cylindrical side of the lens with tweezers. Was.

[0004] Among such conventional contact lenses for vitreous surgery, a lens in which the upper surface of the lens is provided at an angle with respect to the horizontal (hereinafter referred to as an "angled lens") for observing the peripheral portion of the fundus oculi in particular. However, in this type, the observation site differs depending on the rotation of the lens, so when using this lens, the surgeon instructs the assistant to use the tweezers for both the patterned lens and the unpatterned lens with tweezers. The operator rotates the lens to the position he / she wants to observe.However, there is a drawback that the position often shifts and takes time.The surgeon himself holds the surgical tool in both hands and rotates the lens to an arbitrary position with his finger There is a drawback that it is not possible to rotate freely as much as you want, especially if you do not have an assistant and urgent surgery is required, and the burden on the patient It is not suitable for when you want to shorten as much as possible the surgery time to lightly even a little. Further, in the case of a patterned lens, there is a possibility that the handle may be broken or come off during use.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a conventional contact lens for vitreous surgery, in which the operation cannot be performed without an assistant, and the operation cannot be performed smoothly. An object of the present invention is to provide a contact lens for vitreous surgery that can eliminate defects such as breakage or dropout of the handle inside and hindering surgery.

[0006]

Therefore, in the present invention, after various research and trial production, the outer peripheral surface of the cylindrical side portion of the angled lens body (1) of the contact lens for vitreous surgery is made of the same material as the lens. By providing an arbitrary number of convex portions (2) having an arbitrary shape by molding integrally with the lens body (1),
Intraocular vitreous surgery with a finger hook that allows the surgeon to operate while freely holding the surgical tool in both hands and freely rotating the lens with his or her own finger without the help of an assistant We have developed a contact lens for use in the field and have solved the above problems.

[0007]

Function The surgeon of the vitreous surgery holds the surgical tool in both hands while hooking any fingertip of the surgeon on the convex portion provided on the side outer peripheral surface of the angled lens body to rotate the lens. The lens can be quickly and smoothly turned to the position to be observed without assistance of an assistant, and vitreous surgery can be performed safely and in a short time.

Unlike the conventional handle, the finger hook projection (2) is formed integrally with the angled lens body (1), so that it does not break or fall out during use.

[0009] Since the finger hook projections (2) are arranged at an arbitrary interval on the side outer peripheral surface of the angled lens body (1) at an appropriate interval, the surgeon easily puts a fingertip on one of them. You can observe the vitreous body while rotating the lens freely.

Since the finger hook projection (2) is formed integrally with the angled lens body (1) from the same material (transparent acrylic resin product), it has an effect of not obstructing the surgeon's observation. is there.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. However, the present invention is not limited to this. As shown in FIG. 1, a plurality (12 in the present embodiment, but may be increased or decreased as appropriate) of finger fingers on the side outer peripheral surface of the angled lens body (1) of the contact lens for vitreous surgery. The present invention is completed by providing the lens projection (2) integrally with the lens body using the same material (acrylic resin product). In addition, the convex part (2) for finger hanging may be a square column or a plane circular column as shown in FIG. 4 (a) or (b).

[0012]

[Effects of the Invention] The present invention enables the surgeon to operate the lens freely without the assistance of an assistant and to observe the vitreous body carefully and safely and quickly in surgery, thereby saving labor and energy. There is a remarkable temporal effect, and it is extremely effective especially in the case of emergency surgery in the absence of an assistant, and can be said to be useful in an era of shortage of nurses and the like in recent years. In addition, since the lens of the present invention is formed integrally with the angled lens body and the finger projection, there is no danger of the handle being broken or slipped off during the operation, unlike a conventional patterned lens. Some of them prevent troubles such as breakage and dropout, have high durability, endure long-term use, and have large economic effects.

[Brief description of the drawings]

FIG. 1 is a completed perspective view of the present invention.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a longitudinal sectional view showing a state of use of the present invention.

4 (a) and 4 (b) are perspective views showing an embodiment of the present invention.

FIGS. 5A and 5B are perspective views of a conventional vitreous surgery contact lens, wherein FIG. 5A is a perspective view showing a case of a patterned lens, and FIG. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Angled lens main body 2 Finger projection 3 Ring 4 Vitreous body 5 Lens 6 Iris 7 Anterior chamber 8 Cornea 9 Eyeball 10 Conventional contact lens body 11 Conventional contact lens handle

Claims (1)

(57) [Scope of request for utility model registration] 1. An outer peripheral surface of a side of an angled lens body (1) of a contact lens used for vitreous surgery in an eyeball,
An intraocular vitreous body, wherein a plurality of finger-shaped protrusions (2) in the form of a flat rectangle or any other arbitrary column shape are integrally formed with the same material as the angled lens body at appropriate intervals. Surgical contact lenses.