Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making

A femtosecond system and surgery technology, applied in the field of medical devices, can solve the problems of undiscovered patent documents, prone to micro-wrinkles, affecting postoperative vision, etc. Effect

Inactive Publication Date: 2012-07-25
王雁 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thinner corneal flap makes it more difficult to lift the flap. The thinner corneal flap is prone to microfolds after surgery, which affects postoperative vision. For this reason, the width of the pedicle can be appropriately increased, but at the same time, it is necess

Method used

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  • Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making
  • Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making
  • Microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0023] Example 1:

[0024] A microscopic flapper used for femtosecond flap LASIK surgery, such as figure 1 , 2 As shown, it is composed of a flap part 1 and a handle 2. The flap part is fixedly mounted on the upper end of the handle, and anti-skid patterns 3 are made on the hand-held part of the handle to prevent the device from slipping off during the operation and make the operation safer.

[0025] The structure of the flap part is like image 3 , 4 As shown in 5, the flap part is made by integrally connecting a straight rod section a, a circular arc section b, and a flat shovel section c. The lower end of the straight rod section is coaxially fixed with the upper end of the handle, or a system is formed, the horizontal The cross section is circular; with the extension of the upper part of the straight rod section, its cross-sectional diameter gradually becomes smaller, about 1.5 cm after turning, forming a circular arc section with an obtuse angle with the straight rod section, t...

Example Embodiment

[0029] Example 2:

[0030] A microscopic flapper used for femtosecond flap LASIK surgery, see Image 6 , 7 , 8, 9. The external structure also includes a handle and a flap part. The flap part structure of this embodiment is different from that of the first embodiment. The following only describes the structure of the flap part as follows:

[0031] Such as Image 6 As shown, the flap part includes a straight rod section, a circular arc section and a flat shovel section, but there is a turning section d between the straight rod section and the circular arc section, and the turning section and the straight rod section turn at an obtuse angle; The turning section and the arc section are reflexed at an acute angle.

[0032] For the cross-sectional shapes of the straight bar section, the turning section and the arc section, and the arc section, please refer to Picture 9 , Figure 8 , Figure 7 .. The specific structure is described as follows:

[0033] The straight section is a direct ...

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PUM

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Abstract

The invention relates to a microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making, comprising a flap lifting part and a handle, wherein the flap lifting part is fixedly arranged on the upper end of the handle; the flap lifting part includes a straight rod section, an arc section and a flat spade section which are manufactured integrally and connectedly; the lower end of the straight rod section is coaxially connected with the upper end of the handle, the upper blunt angle turning of the straight rod section is connected with the arc section, the section diameter and conical degree of the arc section become smaller gradually, the terminal end of the arc section is connected with the flat spade section with oval tips, and the cross section of the flat spade section is centrally thick and peripherally thin in shape. The microscopic flap lifting device disclosed by the invention can thoroughly separate corneal stroma flaps and reduce corneal flap damage, corneal flap dissociation and other complications during separation process, and is helpful for completely lifting the flap; meanwhile, the oval flat chisel section can reduce separation difficulty caused by opaque bubble layer (OBL) and reduce the damage on corneal tissue caused by repeated operation, and is helpful for post-operative wound recovery.

Description

technical field [0001] The invention belongs to the field of medical instruments, and relates to microsurgical instruments related to corneal refractive surgery, in particular to a microscopic flap lifter for femtosecond flap-making LASIK surgery. Background technique [0002] Excimer laser in situ keratomileusis (laser in situ keratomileusis, LASIK) is currently the mainstream of corneal refractive surgery, and its safety and effectiveness have gradually been widely recognized by the majority of patients with refractive errors. The production of the corneal flap is one of the key steps. At present, the microkeratome is widely used to complete the production of the corneal flap, but it has a relatively high risk, and some serious complications related to the flap are prone to occur, such as incomplete flap, broken flap, free flap, etc. Flaps, button flaps, etc., have seriously affected the operation and the recovery of postoperative vision, resulting in a decline in visual q...

Claims

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Application Information

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IPC IPC(8): A61F9/01
Inventor 王雁鲍锡柳张哲左彤
Owner 王雁
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