Front capsule cutting and guiding device for cataract surgery
A guiding device and surgical technology, applied in the field of medical devices, can solve the problems of different corneal sizes, waste of time and manpower, difficulty in cutting the anterior capsule in a circular shape, etc.
Active Publication Date: 2019-02-15
李达
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[0003]
An experienced doctor can incise the anterior capsule based on the size of the patient's cornea and the size of the dilated pupil as a reference, however, the size of the cornea varies from patient to patient, and the size of the dilated pupil also varies, so the final size varies. Not the same, and the shape of the incised anterior capsule is completely dependent on the experience and technique of the doctor, so it is difficult to incise the anterior capsule in a perfect circular shape, and, when the size and shape of the incised anterior capsule are not perfect , after the intraocular lens is implanted, additional surgery is required to adjust the size of the lens capsule, which is a waste of time and manpower
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0016] refer to Figure 1-3 , an anterior capsulotomy guide device for cataract surgery, comprising a ring 1, and the inner cavity of the ring 1 is hollow, a groove 8 is reserved on the surface of the ring 1, and the inner cavity of the ring 1 The center position of the top end is clamped with a support seat 10, the left and right sides of the support seat 10 are arc-shaped, the inner cavity of the support seat 10 is hollow and there are through holes on both sides, the ring 1 A hollow column 7 is welded at the center of the top, and one end of an elastic strip 9 is inserted into the left and right sides of the cavity of the hollow column 7. The material of the elast...
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The invention relates to the technical field of medical instruments, in particular to a front capsule cutting and guiding device for a cataract surgery, which comprises a circular ring, wherein an inner cavity of the circular ring is hollow; a groove is reserved in the surface of the circular ring; a supporting seat is clamped at the center of the top end of the inner cavity of the circular ring;the inner cavity of the supporting seat is hollow, the top center position of the circular ring is welded with a hollow column, the left side and right side of the inner cavity of the hollow column are respectively inserted with one end of an elastic strip, the other ends of the elastic strips extend into the inner cavity of the ring and is flush with the end face of the groove, the top end of theelastic strips is welded with an outer cylinder of a bearing, and the inner cylinder of the bearing is in interference fit with a screw rod which can rotate around the axis of the screw rod; the elastic strips move out of the circular ring along the inner wall of the circular ring to enter the groove, and according to the side of a cornea of a patient and the size of a dilated pupil, medical staff can adjust the size of the groove, so that the front capsule can be accurately and perfectly cut.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to an anterior capsulotomy guiding device for cataract surgery. Background technique [0002] Cataract surgery is an ophthalmic operation, the purpose of which is to remove the clouded lens and insert a transparent artificial lens to replace the role of the natural lens. The natural lens has a capsule, the lens capsule, according to the lens during surgical removal. The relationship between the nucleus and the capsular bag can be divided into intracapsular extirpation and extracapsular extirpation. After removing the cloudy lens, an intraocular lens is often placed. Intracapsular or extracapsular placement of intraocular lenses can not only restore vision, but also restore the anatomical relationship in the eye and prevent the anterior vitreous from prolapse. If the anterior vitreous prolapses from the vitreous cavity to the anterior chamber and cornea or iris tissue Adhesi...
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IPC IPC(8): A61F9/007
CPCA61F9/00754Y02W90/10
Inventor 张海涛林立勋董丽娟
Owner 李达