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Combined type operation excision device for pterygium

A technology for pterygium and surgical resection, applied in the field of medical devices, can solve problems such as uncontrollable cutting force, accidental eyeball damage, and difficult operation, and achieve the effect of preventing accidental corneal damage, avoiding corneal damage, and having good versatility.

Active Publication Date: 2021-06-22
THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, and propose a combined pterygium surgical excision device to solve the problems of uncontrollable cutting direction, cutting force and difficult operation during the excision of the pterygium, and overcome the problems in operation. The problem of accidental eyeball damage caused by the patient's eyeball rotation, and the problem of corneal damage easily caused by improper pterygium resection

Method used

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  • Combined type operation excision device for pterygium
  • Combined type operation excision device for pterygium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The combined surgical resection device for pterygium involved in this embodiment, its main structure includes four parts: corneal fixator, linear knife fixer, linear knife, and linear knife penetrator; the main structure of the corneal fixator Including cornea fixing ring 1, first handle 2, groove 3, fixing teeth 4, connecting shaft 5, track groove 6, cornea fixing ring 1 is a medical metal ring structure with a diameter of 12mm, a height of 4mm, and a thickness of 0.5mm The two sides of the corneal fixing ring 1 are equipped with the first handle 2 with a semicircular fork structure through the connecting shaft 5, the holding end of the first handle 2 is in the same plane as the plane where the semicircular fork is located, and the first handle 2 can be wound around the connecting shaft 5 Rotate relative to the cornea fixing ring 1, the bottom of the cornea fixing ring 1 is provided with an arc-shaped groove 3 at the position opposite to the first handle 2, so as to fre...

Embodiment 2

[0023] The combined surgical resection device for pterygium involved in this embodiment has the same main structure as in Embodiment 1, the first buckle groove 9, the second buckle groove 10, the third buckle groove 11, and the fourth buckle groove. The gap between the upper and lower sides of the buckle groove 12 is a blunt sawtooth structure, and the size of the gap is 0.01-0.5 mm, which can block the linear knife 13 .

Embodiment 3

[0025] The combined surgical resection device for pterygium involved in this embodiment has the same main structure as that in Embodiment 1 or Embodiment 2, and one end of the linear knife 13 is fixedly provided with an indicator plate 15, which is made of medical PVC material. The formed disc structure has a diameter of 3 to 4 mm and a thickness of 1 to 2 mm. One side of the indicating disc 15 is red, and the linear knife 13 is fixed between the upper and lower surfaces of the indicating disc 15 and passes through the center of the indicating disc 15. When indicating When the red side of the disc 15 faces upward, the teeth of the linear knife 13 face to the left of the indicating disc 15; It is used to judge and determine the direction of the cutter teeth. When in use, when passing the linear knife 13 through the linear knife threader 14, determine the orientation of the knife teeth according to the cutting direction and select the direction of the indicator disk 15, then pin...

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Abstract

The invention belongs to the technical field of medical instruments, and relates to a combined type operation excision device for pterygium. The main structure of the device comprises a cornea fixing device, a linear knife fixing device, a linear knife and a linear knife threading device. The main structure of the cornea fixing device comprises a cornea fixing ring, a first handle, a groove, fixing teeth, a connecting shaft and a track groove, the fixing teeth are of a corrugated structure and are used for fixing the eyeball, the opening end of the track groove is communicated with the groove, the main body structure of the linear knife fixer comprises a semicircular fixer, a second handle, a first buckle groove, a second buckle groove, a third buckle groove and a fourth buckle groove, the linear knife is a linear knife with teeth on one side, and the linear knife threading device is of a medical arc-shaped metal tube structure. The arc adapts to the radian of the cornea; and the cutting direction and the cutting depth are controllable, surgical operation difficulty is reduced, cornea injury caused by improper surgery is avoided, eyeballs are conveniently fixed, surgical operation safety is improved, the overall structural design is simple and ingenious, and operation and popularization are convenient.

Description

Technical field: [0001] The invention belongs to the technical field of medical devices, and relates to a combined surgical excision device for pterygium, in particular to a device for safe surgical excision of pterygium that is easy to operate and controllable in cutting direction, and can effectively avoid corneal damage caused by surgical cutting . Background technique: [0002] Pterygium is a fibrovascular tissue that grows from the bulbar conjunctiva to the corneal surface and is connected with the conjunctiva. It not only affects the appearance, but also affects the vision of the patient to varying degrees. Its occurrence is related to various factors such as ultraviolet rays, wind and sand stimulation, inflammation, and genetics caused by long-term outdoor work. It is a common and frequently-occurring disease in the field of ophthalmology, and the operation volume is very large. [0003] During the operation, the pterygium needs to be peeled off from the corneal surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/007
CPCA61F9/00763
Inventor 梁涛张凌云吴媛
Owner THE AFFILIATED HOSPITAL OF QINGDAO UNIV
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