CN100389738C

CN100389738C - Imitation pupil positioner for ophthalmic cornea surgical operation

Info

Publication number: CN100389738C
Application number: CNB2005100444107A
Authority: CN
Inventors: 赛自金; 刘壮昌; 曲本祥; 于宝江; 张吉玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-18
Filing date: 2005-08-18
Publication date: 2008-05-28
Anticipated expiration: 2025-08-18
Also published as: CN1915192A

Abstract

A simulative pupil locator for the ophthalmic cornea operation has a circular disc body with a central circular through hole, an oblique handle, and a black silica gel disc inlaid in said central through hole.

Description

Imitation pupil positioner for ophthalmic cornea surgical operation

Technical field

The present invention relates to medical instruments field, the imitation pupil positioner that especially a kind of clinical ophthalmic cornea surgical operation is used.

Background technology

Along with continuous progress in science and technology, accepting lasik surgery, to treat bathomorphic patient more and more, but not every myopia patient can both remove glasses as what is desired, and the patient that some near-sighted number of degrees is higher relatively, corneal thickness is relatively thin but can only feel to sigh.Therefore we are necessary to improve existing lasik surgery method, further to satisfy the needs of myopia people operation.

Existing lasik surgery method is to make the lamellar cornea lobe of a band base of a fruit earlier of microkeratome, raises cornea flap then, reuse excimer laser cutting angle membrane matrix bed, the cornea flap of washing at last again, reset.The position of excimer laser cutting is at the corneal stroma bed, and the corneal stroma bed can not cut unlimitedly, and remaining thickness must be greater than 250 Ц m, and the eyes to patient are only safe like this.What of the myopia number of degrees are the size of corneal thickness determined to remove, and corneal thickness is thick more, and the myopia number of degrees that can solve are just high more.The patient relatively thin to those corneal thicknesses wants to remove glasses for the myopia and just must adopt new operation method.If on the lamellar cornea lobe, implement the cutting of part amount, be a kind of good system of selection, also be safely and effectively simultaneously, but this operation method rely on the experience of operator fully, does not have effective orientation tool to utilize.

Summary of the invention

There is not the cutting orientation tool in the existing ophthalmic cornea surgical operation in order to overcome, operation technique is fully with manual technical deficiency, the invention provides the imitation pupil positioner that a kind of clinical ophthalmic cornea surgical operation is used, the potential danger that this pupil positioner can avoid the PRK operation to be brought, can perform the operation by unnecessary capable EK, the operation quality is higher, better effects if, some patients that can make original needs dwindle the row excimer laser cutting of light district change the cutting of normal light district into, eliminated dazzle largely, patient's noctovision quality is improved.

The technical solution adopted for the present invention to solve the technical problems is: be provided with circular disk body, the central part of stainless steel material disk body is processed with manhole, disk body thickness is 1.5mm, internal diameter is 3mm, external diameter is 8mm, being inlaid with internal diameter in the through hole is the black silica gel disk of 3mm, and two cards of disk and two cards of disk body are located respectively in one plane, and the edge of disk body is fixed with a card with disk body and is skewed handle.

The invention has the beneficial effects as follows the potential danger that to avoid the PRK operation to be brought; Can perform the operation by unnecessary capable EK, and adopt flexible lasik surgery, the operation quality is higher, better effects if; Can substitute the Epi-LASIK operation method, save more equipment expenses, patient can be subjected to same surgical effect; Some patients that can make original needs dwindle the row excimer laser cutting of light district change the cutting of normal light district into, have eliminated dazzle largely, and patient's noctovision quality is improved, and are simple in structure.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a front view of the present invention.

Fig. 2 is a vertical view of the present invention.

1. disks among the figure, 2. disk body, 3. handle.

The specific embodiment

In Fig. 1, Fig. 2, circular disk body 2 adopts the stainless steel material manufacturing, the central part of disk body 2 is processed with manhole, be inlaid with the disk 1 of the silica gel material of black in the through hole, two cards of disk 1 and two cards of disk body 2 are located respectively in one plane, and the edge of disk body 2 is fixed with a card with disk body 2 and is skewed handle 3.Concrete manufacture method is: the metal disk body 2 that removes heart with one of the material of making micro-surgical instruments, its thickness is 1.5mm, internal diameter is 3mm, external diameter is 8mm, the edge of disk body 2 with one long be that 90mm metal handle 3 welds mutually, metal handle 3 is 45 with disk body 2 surfaces, the core of internal diameter 3mm is partly done filling with the silica gel of black, disk 1 plane and 2 of the metal disk bodies of silica gel material are located at grade the consistency of thickness of the thickness of disk 1 and metal disk body 2.

Operation method after the improvement: the myopia patient's that corneal thickness is relatively approached amount for surgical reasonably is designed to two parts in advance, divide secondary cutting in the operation, a part is in the up excimer laser cutting of corneal stroma bed, and another part then is made on the corneal lamellar lobe.In the operation, allow patient's eyeball be horizontal, watch the watch lamp of top attentively, decide cornea and look central point, with dyestuff on anterior corneal surface labelling angle of departure film look central point, do the lamellar cornea lobe, raise cornea flap, in the up excimer laser cutting of corneal stroma bed, then upwards with the cornea flap surgical wound surface, with its flat assisting on the LASIK imitation pupil positioner, and the good cornea that makes labelling looks central point and overlaps with the disc centre of imitation pupil positioner, adjusts the tracking thresholding of excimer laser system, makes its trace simulation pupil positioner pupil of simulating out automatically, row excimer laser cutting for the second time then, the remaining amount for surgical in cutting back is made on the cornea flap for the first time.The definite of amount for surgical on the cornea flap will determine according to the thickness of the cornea flap of making.

Claims

1. imitation pupil positioner for ophthalmic cornea surgical operation, it is provided with circular disk body, it is characterized in that: the central part of stainless steel material disk body is processed with manhole, disk body thickness is 1.5mm, internal diameter is 3mm, and external diameter is 8mm, and being inlaid with internal diameter in the through hole is the black silica gel disk of 3mm, two cards of disk and two cards of disk body are located respectively in one plane, and the edge of disk body is fixed with a card with disk body and is skewed handle.