CN201147409Y - Device for enlarging pupil - Google Patents
Device for enlarging pupil Download PDFInfo
- Publication number
- CN201147409Y CN201147409Y CNU2008200172031U CN200820017203U CN201147409Y CN 201147409 Y CN201147409 Y CN 201147409Y CN U2008200172031 U CNU2008200172031 U CN U2008200172031U CN 200820017203 U CN200820017203 U CN 200820017203U CN 201147409 Y CN201147409 Y CN 201147409Y
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- CN
- China
- Prior art keywords
- elasticity
- pupil
- bent
- flexure ring
- segmental arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pupil-enlarging device, which is characterized in that the pupil-enlarging device comprises an upper-layer bent elastic ring (1), an underlayer bent elastic ring (2) and an elastic internally-bent section (3) which is vertical to and connected with the connecting ends of the upper-layer and the underlayer bent elastic rings (1, 2). The protruding segmental arcs of the upper-layer bent elastic ring (1) and the underlayer bent elastic ring (2) are arrayed in a staggered form and the internal connecting sections are integrated into a whole through the elastic internally-bent section (3). The protruding segmental arc of the upper-layer bent elastic ring (1), the elastic internally-bent section (3) and the protruding segmental arc of the underlayer bent elastic ring (2) are integrated into a whole through an elastic fiber. The pupil-enlarging device can enlarge the pupil effectively whether the pupil is contracted physiologically or pathologically, or by dropping a drop of weak mydriatic to enable the smooth undergoing of a cataract or postocular surgery. In addition, the pupil-enlarging device has the function of protecting the iris and preventing the iris from being sucked in or damaged by an ultrasonic emulsification needle during the surgery and is widely applicable to cataract or postocular surgeries.
Description
Technical field
This utility model relates to a kind of ophthalmic medical instrument, and particularly a kind of platycoria device is applicable in the operation of ophthalmology cataract and oculi posterior segment platycoria and keeps the operation open big state.
Background technology
In cataract and oculi posterior segment operation, the size of pupil directly influences operation technique, enlarging the normal method that adopts of pupil at present is to drip mydriatic, its deficiency is: about 1/5th patient can not reach the purpose that pupil is fully expanded with dripping mydriatic, sometimes, the effect that medicine enlarges pupil can not continue, and can make contracted pupil because of the thigmic stimulus iris in operation process.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, easy to use, platycoria device of opening big pupil that can be safe and reliable.
For reaching above purpose, the technical scheme that this utility model adopted is: this platycoria device, it is characterized in that it is by upper strata elasticity of flexure ring, lower floor's elasticity of flexure ring and vertical and be connected in that bending section constitutes in the elasticity of link in the upper and lower layer elasticity of flexure ring, the protrusion segmental arc of upper strata elasticity of flexure ring and lower floor's elasticity of flexure ring is staggered, and interior link links into an integrated entity by bending section in the elasticity.This utility model is also implemented by following measure: the protrusion segmental arc of bending section, lower floor's elasticity of flexure ring is made one with an elastic fiber successively in the protrusion segmental arc of upper strata elasticity of flexure ring, the elasticity, and elastic fiber can be made of medical metal material; The protrusion segmental arc of described upper strata elasticity of flexure ring and the protrusion segmental arc of lower floor's elasticity of flexure ring are all established six, and the overall diameter of upper and lower layer elasticity of flexure ring is 5-8mm, and interior diameter is 4-6mm.When using this utility model, at first do conventional cataractous scleral tunnel otch, inject viscoelastic agent in the anterior chamber, the tweezers that reuse is special clamp originally driving big device, make the platycoria device become little ring, enter the anterior chamber through the 3.5mm scleral tunnel, adjust the position after, slowly unclamp tweezers, make ring become big, and with iris to around push open, even platycoria slowly withdraws from tweezers from otch then.
The beneficial effects of the utility model are: open big pupil by this platycoria device; though pupil be physiological, or pathologic dwindle; or only need put a weak mydriatic; can both effectively amplify pupil; the operation of cataract or oculi posterior segment is carried out smoothly, and the protection iris is arranged in operation, prevent iris by super newborn pin suck, the effect of damage.
Description of drawings
Fig. 1 is a schematic top plan view of the present utility model.
Fig. 2 is a schematic side view of the present utility model.
The specific embodiment
Make this utility model with reference to accompanying drawing 1,2.This platycoria device, it is characterized in that it is by upper strata elasticity of flexure ring 1, lower floor's elasticity of flexure ring 2 and vertical and be connected in that bending section 3 constitutes in the elasticity of links in the upper and lower layer elasticity of flexure ring 1,2, upper strata elasticity of flexure ring 1 is staggered with the protrusion segmental arc of lower floor's elasticity of flexure ring 2, and interior link links into an integrated entity by bending section in the elasticity 3.The protrusion segmental arc of bending section 3, lower floor's elasticity of flexure ring 2 is made one with an elastic fiber successively in the protrusion segmental arc of upper strata elasticity of flexure ring 1, the elasticity, and elastic fiber can be made of medical metal material; The protrusion segmental arc of described upper strata elasticity of flexure ring 1 and the protrusion segmental arc of lower floor's elasticity of flexure ring 2 are all established six, and the overall diameter of upper and lower layer elasticity of flexure ring 1,2 is 5-8mm, and interior diameter is 4-6mm.
Claims (2)
1, a kind of platycoria device, it is characterized in that it is interior bending section (3) formation of elasticity that is reached vertically and be connected in the interior link of upper and lower layer elasticity of flexure ring (1,2) by upper strata elasticity of flexure ring (1), lower floor's elasticity of flexure ring (2), upper strata elasticity of flexure ring (1) is staggered with the protrusion segmental arc of lower floor's elasticity of flexure ring (2), and interior link links into an integrated entity by bending section (3) in the elasticity.
2, platycoria device according to claim 1 is characterized in that the protrusion segmental arc of bending section (3), lower floor's elasticity of flexure ring (2) in the protrusion segmental arc, elasticity of described upper strata elasticity of flexure ring (1) is made one with an elastic fiber successively; The protrusion segmental arc of the protrusion segmental arc of described upper strata elasticity of flexure ring (1) and lower floor's elasticity of flexure ring (2) is all established six, and the overall diameter of upper and lower layer elasticity of flexure ring (1,2) is 5-8mm, and interior diameter is 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200172031U CN201147409Y (en) | 2008-01-28 | 2008-01-28 | Device for enlarging pupil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200172031U CN201147409Y (en) | 2008-01-28 | 2008-01-28 | Device for enlarging pupil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147409Y true CN201147409Y (en) | 2008-11-12 |
Family
ID=40115180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200172031U Expired - Fee Related CN201147409Y (en) | 2008-01-28 | 2008-01-28 | Device for enlarging pupil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147409Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773427B (en) * | 2010-01-12 | 2011-08-31 | 王首雁 | Irido-pupillary sphincter clamping ring used in ophthalmic surgery and application method thereof |
| CN110547907A (en) * | 2019-08-15 | 2019-12-10 | 中南大学湘雅二医院 | Double-ring iris expander for intraocular operation |
-
2008
- 2008-01-28 CN CNU2008200172031U patent/CN201147409Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773427B (en) * | 2010-01-12 | 2011-08-31 | 王首雁 | Irido-pupillary sphincter clamping ring used in ophthalmic surgery and application method thereof |
| CN110547907A (en) * | 2019-08-15 | 2019-12-10 | 中南大学湘雅二医院 | Double-ring iris expander for intraocular operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 |