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Surgical device for ophthalmic surgery

A surgical device and ophthalmic surgery technology, applied in ophthalmic surgery, etc., can solve problems such as difficulty in guaranteeing surgical effect, limited development and popularization, and easy loosening of pressing materials, so as to achieve stable and reliable surgical effect and prevent deviation of implantation position , to avoid the effect of squeezing the optic nerve

Active Publication Date: 2015-12-09
广州瑞其纳医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the operation steps of the existing ophthalmic surgery are complicated, the implanted pressure material is easy to loosen, and it is difficult to accurately align the pressure material to the sclera in the macular area, which makes it difficult to perform the operation and the operation is difficult. The effect is difficult to guarantee
In short, problems such as difficult surgical positioning, complicated operation, many complications, and unstable implants limit the development and popularization of this type of surgery.

Method used

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  • Surgical device for ophthalmic surgery
  • Surgical device for ophthalmic surgery
  • Surgical device for ophthalmic surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In the surgical device used in this embodiment, the pressing material 1 has a circular cross-section, an area of ​​28 square millimeters, and a height of 2 millimeters. The pressing material 1 is silica gel. The arc-shaped stent body 24 is titanium, and the coated biocompatible material layer 23 is silica gel. The length of the arc support 2 is 23 millimeters. The suture end 22 of the arc-shaped support 2 is a detachable segmental structure.

[0055] The use method of the surgical device for the above-mentioned ophthalmic surgery comprises the following steps: A. Put the surgical device under the temporal fascia sac of the eyeball, make the arc-shaped support 2 perpendicular to the limbus 54, and make the top pressure end 21 of the arc-shaped support 2 Place it on the posterior pole 55 of the eyeball, and make the suture end 22 of the arc-shaped support 2 parallel to the limbus 54; B. Cross one end of the traction strip 3 across the lateral rectus muscle and the infer...

Embodiment 2

[0062] As the surgical device described in Example 1, the cross-section of the pressing material 1 is petal-shaped (three petals), the maximum diameter is 11 mm, the cross-sectional area is 90 square mm, and the height is 3 mm. The pressing material 1 is silicon sponge. The arc-shaped stent body 24 is made of stainless steel, and the coated biocompatible material layer 23 is made of silica gel. The length of the arc support 2 is 21 millimeters. The suture end 22 of the arc-shaped support 2 is a detachable segmental structure. No light guide fiber 4 is attached to the top pressure end 21, and the position and height of the macular bulge are observed during the operation with the aid of an indirect ophthalmoscope. Other implementation steps are as embodiment 1.

[0063] Operation implementation: high myopia patient, male, 44 years old, left eye axis 27.5 mm, left eye macular splitting, macular retinal partial detachment, best corrected visual acuity 0.5 before operation, best...

Embodiment 3

[0065] As for the surgical device described in Example 1, the cross-section of the pressing material 1 is polygonal, the cross-sectional area is 52 square millimeters, and the height is 6.5 millimeters. The pressing material 1 is silicon sponge. The arc-shaped stent body 24 is titanium, and the coated biocompatible material layer 23 is silica gel. The length of the bracket 2 is 28 mm. The suture end 22 of the arc-shaped bracket 2 is Y-shaped, and is directly sutured on the corresponding part of the eyeball. Other implementation steps are as embodiment 1.

[0066] Operation implementation: high myopia patient, female, 46 years old, left eye axis 32.6 mm, left macular hole, best corrected visual acuity 0.05 before operation, best corrected visual acuity recovered to 0.3 6 months after operation, metamorphopsia The macular hole healed, and the degree of myopia decreased from -18.0Diopter before operation to -12.25Diopter after operation.

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Abstract

The invention provides a surgical device for ophthalmic surgery. The surgical device comprises a jacking material, a light guiding fiber, a traction strip and an arc-shaped support. The jacking material and the traction strip are arranged on the inner side and the outer side of one end of the arc-shaped support respectively. A hollow channel is formed in the middle of the jacking material. A through hole is formed in the portion, corresponding to the hollow channel, of the arc-shaped support. A hollow region is formed on the traction strip. The joint of the traction strip and the arc-shaped support can freely rotate. One end of the light guiding fiber sequentially penetrates through the hollow region and the through hole to be embedded into the hollow channel. When the surgical device is used, the jacking material can be aligned with the macula lutea center region through the light guiding fiber, the jacking height can be adjusted through the traction strip, the suture position of the arc-shaped support is adjusted through relative rotation between the traction strip and the jacking end, the implantation position of the jacking material can be accurate and reliable, an implant is stable for a long time, surgical operation is simple, side effects are fewer, and the surgical device is suitable for treating high myopia degree progressive increase and posterior scleral staphyloma related complications.

Description

technical field [0001] The present invention mainly relates to the technical field of ophthalmic surgery devices, in particular to a surgical device for ophthalmic surgery and its usage method. Background technique [0002] Posterior staphyloma is one of the characteristic manifestations of pathological myopia (high myopia). Posterior staphyloma refers to the outward bulging of the sclera and uvea at the back of the eyeball. The excessive expansion and expansion of the external sclera will lead to insufficient retinal tissue to cover the expanded sclera. Clinically, patients with posterior staphyloma of high myopia are often accompanied by progressive myopia in adulthood, retinal choroidal atrophy, macular hole, and macular retinoschisis. , retinal detachment and other pathological manifestations that seriously affect vision. The prevalence of high myopia in my country is high, the number of people suffering from posterior staphyloma-related diseases is huge, and the social...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
Inventor 刘炳乾吕林
Owner 广州瑞其纳医疗科技有限公司
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