CN101167672A

CN101167672A - Eyelid retractor capable of fixing eyeball and application thereof

Info

Publication number: CN101167672A
Application number: CNA2007101881622A
Authority: CN
Inventors: 肖真; 王冲
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2008-04-30
Anticipated expiration: 2027-11-13
Also published as: CN100539970C

Abstract

The invention provides an eyelid retractor which can fix eyeballs, and comprises a C type body (1), two arms (2), and components (3) which are adhered on the ends of an upper and a lower two arms and can be fixed on the skin, wherein the intra-annular diameter of the C type body (1) is the same as the diameter of an adult cornea, a base face of the C type body (1) is arranged at a radian at which the C type body (1) is in the anastomosis with a conjunctiva sac, and the C type body (1) of the eyelid retractor can be blocked at the edge of a corneosclera, thereby achieving the purpose of fixing eyeballs. The eyelid retractor can be used in the ophthalmic surgeries and/or ophthalmic examinations in which patients are asked to widely open eyes and keep fixed eyesight, such as the forward centesis, the anterior segment laser surgery, the optical coherence tomography technique (OTC) examination, the heidelberg retina tomograph (HRT) examination, the optic nerve fiber thickness analyzing (GDx) or the corneal endothelium counting.

Description

The fixedly eye speculum of eyeball and application thereof

Technical field

The present invention relates to a kind of ophthalmic medical apparatus and instruments, specifically a kind of eye speculum of fixedly eyeball.

Background technology

Eye speculum is a very important assistive device in ophtalmic treatments and the diagnostic procedure, and its effect is to help the doctor to strut patient's eyelid, makes things convenient for the doctor to operate.But present eye speculum function is simple, can not satisfy the needs of ophthalmologic examination, treatment and operation fully.

For example, paracentesis of anterior chamber is a base therapy measure of ophthalmology, is the important of acute oculopathy such as treatment acute angle closure glaucoma stage of attack, retinal artery occlusion and effective method.The traditional method of carrying out paracentesis of anterior chamber at present is to strut eyelid with conventional eye speculum, at microscopically with the lancet puncture anterior chamber, but this moment, the motion of patient's eyeball was wayward, iris or crystalline lens are stabbed in careless slightly meeting, cause severe complications such as iris damage or traumatic cataract, therefore, paracentesis of anterior chamber is had relatively high expectations to doctor's technical merit.These have limited this The Application of Technology scope, especially can limit it and carry out at basic hospital, might incur loss through delay patient's treatment opportunity.

Summary of the invention

The present invention overcomes the deficiencies in the prior art, provide a kind of can be when strutting eyelid the fixing eye speculum of eyeball, to improve operability, safety and the accuracy of ophthalmologic operation and inspection.

The present invention includes a C type body 1 and two arms 2, and the end of two arms up and down be stained with can be on skin fixed parts 3.The ring interior diameter of above-mentioned C type body is suitable with adult's corneal diameter, can be 11～13mm, preferred 12mm.Be the radian that matches with conjunctival sac at C type body basal surface, its radius of curvature can be 22cm～26cm, preferred 24cm.The opening vacancy of C type body can be 45 °～75 °, preferred 60 °.C type body is made by physiologically acceptable material, as selects macromolecular material polymethyl methacrylate (PMMA) for use.Arm can be made by soft pressure material, and fixed parts can be adhesive plaster on skin.

With the paracentesis of anterior chamber is example, when use is of the present invention, earlier the eye speculum body is put into conjunctival sac after topical anesthesia, and C type opening is as for the temporo side, and soft arm can draw back eyelid, and with immobilization with adhesive tape.Because the eyeball surface cornea is different with the curvature of sclera, therefore can form an annular depression at the corneoscleral junction place, when use was of the present invention, the C type body of eye speculum can be stuck in corneoscleral junction, thereby reach the fixedly purpose of eyeball, and then with puncture needle from C type body opening puncture anterior chamber.

Except that paracentesis of anterior chamber, known to those skilled in the art, the present invention can be used on that any patient of needs opens eyes wide and the operation that keeps looking admittedly and checking, check as prosthomere laser surgery, OCT (means of optical coherence tomography), Heidelberg retina tomoscan (HRT) is checked, optic nerve fiber thickness is analyzed (GDx), corneal endothelium counting etc.

Description of drawings

Accompanying drawing 1 is the structural representation of the eye speculum of eyeball fixedly

Accompanying drawing 2 fixedly the eye speculum of eyeball at the sketch map of eyeball surface

The specific embodiment

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

Embodiment: by plastic process polymethyl methacrylate (PMMA) is made C type shown in the drawings, stick soft pressure material (as polyethylene) and adhesive plaster again.In the experiment that lagophthalmos is carried out, earlier with the lagophthalmos topical anesthesia, then the present invention is aimed at eyeball and put into ophthalmic, adhesive plaster is attached to outside the eye, thereby eye speculum is fixed on the eyes.Then lagophthalmos is carried out prosthomere puncture operation, from C type body opening puncture anterior chamber, in operation process, lagophthalmos is in good stationary state always, and operation is carried out smoothly with puncture needle.

Claims

1. the fixing eye speculum of eyeball, comprise C type body (1) and two arms (2), and the end of two arms up and down be stained with can be on skin fixed parts (3), the ring interior diameter that it is characterized in that C type body (1) is suitable with adult's corneal diameter, and C type body (1) basal surface is the radian that matches with conjunctival sac.

2. eye speculum as claimed in claim 1, the ring interior diameter of its C type body (1) is 11～13mm, preferred 12mm.

3. as one of any described eye speculum of claim 1-2, the radius of curvature of its C type body (1) basal surface radian is 22cm～26cm, preferred 24cm.

4. as one of any described eye speculum of claim 1-3, the opening vacancy of its C type body (1) is 45 °～75 °, preferred 60 °.

5. as one of any described eye speculum of claim 1-4, its C type body (1) is made by macromolecular material, and arm (2) is made by soft pressure material, and fixed parts (3) are adhesive plaster on skin.

6. as one of any described eye speculum of claim 1-5, its C type body (1) is made by polymethyl methacrylate (PMMA).

According to claim 1 eye speculum in ophthalmologic operation that needs the patient to open eyes wide and keep looking admittedly and/or the application in the ophthalmologic examination.

8. application as claimed in claim 7, wherein ophthalmologic operation is the place ahead paracentesis or prosthomere laser surgery.

9. application as claimed in claim 7, wherein ophthalmologic examination is means of optical coherence tomography (OCT) inspection, Heidelberg retina tomoscan (HRT) checks that optic nerve fiber thickness is analyzed (GDx) or corneal endothelium counting.